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Tytuł:
An impact of gap acceptance on road safety: A critical systematic review
Autorzy:
Bhatt, Khushbu
Shah, Jiten
Powiązania:
https://bibliotekanauki.pl/articles/2141217.pdf
Data publikacji:
2022
Wydawca:
Fundacja Centrum Badań Socjologicznych
Tematy:
gap acceptance
uncontrolled intersection
critical gap
crashes
accidents
Opis:
An uncontrolled intersection is a critical area for crashes that depends on macroscopic traffic parameters. While the intersection is the potential of the center of crashes due to inappropriate decision of driver. Therefore, the study focuses on the effect of the gap acceptance parameter for the safety of drivers at an uncontrolled intersection. To examine, a systematic review of the literature is implemented to understand the different parameters, their impact, and models developed by the researchers. Additionally, it is demonstrated that the crashes are highly affected by the gap acceptance and the different models are formed to estimate the critical gap for different road sections under homogeneous and heterogeneous traffic conditions. However, it is not possible to definitively conclude the best model to evaluate the gap acceptance factor but can be preferred to reduce the severity of crashes. Nonetheless, most studies remain inconclusive, there is an emerging trend in the literature suggesting the increase of the crash risk at an uncontrolled intersection. Lastly, it is most important to mention the model suitability based on empirical studies commenced under the strong limitations. Consequently, there is a need for research in this area to correlate the gap acceptance with road safety to reduce the severity of accidents to improve the existing transportation system.
Źródło:
Journal of Sustainable Development of Transport and Logistics; 2022, 7, 1; 6-22
2520-2979
Pojawia się w:
Journal of Sustainable Development of Transport and Logistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O lukach w prawie rzadko spotykanych słów kilka
A few rare remarks on legal gaps
Autorzy:
Koszowski, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/929284.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Filozofii Prawa i Filozofii Społecznej – Sekcja Polska IVR
Tematy:
intra legem gap
contra legem gap
legal gap
extra legem gap
luka w prawie
luka extra legem
luka intra legem
luka contra legem
Opis:
The article addresses the issue of legal gaps (lacunas). Specifically, the author puts forward the general definition of legal gap which uses the concept of ‘automatically applicable’ legal rule as well as presupposes specific understanding of law – namely, that it is consisted solely of the rules of the mentioned type. Next, basing upon that definition, he defines three kinds of lacunas that are commonly distinguished in Polish and international scholarly literature, i.e. extra, intra and contra legem. As it is demonstrated, the merits of proffered definitions are manifold. First of all, they reduce the dependence of the notion of legal gap on value judgment. Secondly, they fairly well fit into the structure of contemporary legal orders. Thirdly, owing to them, the filling of legal gaps is not pointless. And lastly, the other kinds of lacunas one may encounter in academic literature are not at odds with the proffered theory, at least not by definition. At the end of the article, in the light of the main idea of the author’s conception, the Anglo -Saxon notion of the case of first impression is discussed, taking into account different models of (approaches to) the phenomenon of a binding judicial precedent.
Źródło:
Archiwum Filozofii Prawa i Filozofii Społecznej; 2013, 1(6); 109-122
2082-3304
Pojawia się w:
Archiwum Filozofii Prawa i Filozofii Społecznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review of the static methods used in the measurement of the exposure to the interest rate risk
Autorzy:
Lubińska, Beata
Powiązania:
https://bibliotekanauki.pl/articles/950691.pdf
Data publikacji:
2014
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
re-pricing gap analysis
time bucket sensitivity
duration gap analysis
Opis:
Current financial regulation requires banks to have interest rate risk methods in place commensurate with the size and complexity of the bank. The more sophisticated model, the better the prediction of the future Net Interest Income and its sensitivity to the movement of the interest rate curve. The static methods of which an overview is presented in this article, struggle with limitations such as an unchanged interest rate curve, the non-inclusion of items with optionality and many others. The objective of this article is to show how static methods progressed with time, and how some of their limitations presented by a basic Maturity Gap analysis can be addressed in an interesting way. In addition, it also provides the reader with an interpretation of the results of the analysis performed through the aforementioned methods.
Źródło:
Financial Sciences. Nauki o Finansach; 2014, 4(21); 25-41
2080-5993
2449-9811
Pojawia się w:
Financial Sciences. Nauki o Finansach
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determinants of the VAT gap - part 2
Autorzy:
Hoza, Beata
Powiązania:
https://bibliotekanauki.pl/articles/19233674.pdf
Data publikacji:
2022-12-30
Wydawca:
Wyższa Szkoła Finansów i Prawa w Bielsku-Białej
Tematy:
tax gap
vat gap
Value Added Tax (VAT)
tax frauds
Opis:
The purpose of the paper is to identify the determinants of the gap in Value Added Tax and to assess the measures already taken in order to seal this gap. A thorough understanding of the VAT gap mechanism will facilitate the implementation of appropriate measures to limit the scale of occurrence of tax offenses. Determinants of the VAT gap do not only embrace tax fraud and tax evasion, although these two factors are the most important and are sometimes even identified with the concept of VAT gap. (presented are in Part 1 of this article). The size of the gap is also affected by other factors such as methodological errors, cyclical factors, gray area, problems with financial liquidity and bankruptcy of taxpayers. Their importance and problems with estimation will be presented in this part of the article.
Źródło:
Zeszyty Naukowe Wyższej Szkoły Finansów i Prawa w Bielsku-Białej; 2022, 26, 4; 125-130
2543-9103
2543-411X
Pojawia się w:
Zeszyty Naukowe Wyższej Szkoły Finansów i Prawa w Bielsku-Białej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
WAGES INEQUALITIES BETWEEN MEN AND WOMEN: EUROSTAT SES METADATA ANALYSIS APPLYING ECONOMETRIC MODELS
Autorzy:
Matuszewska-Janica, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/453820.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
labor market
the wage gap
the gender wage gap
SES
Opis:
In this paper there are presented the results of investigation of the various factors impact on the level of male and female wages inequality. These factors are as follows: level of wages in employees group in comparison to the national average wages, the proportion of women in the group of employees, women labor market activity in the states, and variables such as the age, job seniority, level of education of the employees, type of employment contract, occupation (ISCO88), branch where the enterprises operate (NACE rev. 1.1), size of the company and collective pay agreement.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2014, 15, 1; 113-124
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The gender gap in pensions in Italy and Poland
Luka emerytalna w emeryturach mężczyzn i kobiet we Włoszech i w Polsce
Autorzy:
Rinaldi, A.
Dawidowicz, D.
Powiązania:
https://bibliotekanauki.pl/articles/2080821.pdf
Data publikacji:
2019
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
gender gap
pension system
pension gap
plec
system emerytalny
luka emerytalna
Opis:
The article discusses the gender pension gap understood as the difference between the amounts of pensions received by men and women, focusing on Italy and Poland. It analyzes the inequalities and changes in men’s and women’s pensions and identifies the causes of such inequalities. As a result of the analysis, an attempt is made to identify the most important factors affecting inequalities in the pension amounts. The study finds that the retirement age gap and the related years in employment figures for men and women have a significant impact on the pension gap, in addition to the existence of the pay gap between the two sexes. Life expectancy and the working and post-working age population structure are factors that affect the pension gap even further. A comparison between Italy and Poland allows for the conclusion that although the pension gap is present in both the countries, the former presents a lower one than the latter. Moreover, the actions planned to be taken in Italy are bound to reduce the gap even further. On the contrary, not only is Poland’s pension gap widening, but there are also few factors likely to restrain it in the future.
Źródło:
Folia Pomeranae Universitatis Technologiae Stetinensis. Oeconomica; 2019, 95; 17-32
2081-0644
Pojawia się w:
Folia Pomeranae Universitatis Technologiae Stetinensis. Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Myth of American Dream
Autorzy:
Tittenbrun, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/1194020.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
American Dream
income gap
social mobility
social stratification
subjectivism
wealth gap
Opis:
The American Dream is a deep-seated element of collective American consciousness. Yet, contrary to any culturalist approaches, there is a need to go beyond the subjective to consider the relationship of the former to the objective social relations. And from this point of view it turns out that the U.S. society fares very poorly on the scale of social mobility and equality. In other words, the said doctrine is but a myth bearing no correspondence to reality.
Źródło:
World Scientific News; 2015, 9; 1-16
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gap between the coach and platform – solutions for improving train accessibility
Autorzy:
Poliński, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/215088.pdf
Data publikacji:
2019
Wydawca:
Instytut Kolejnictwa
Tematy:
rail transport
accessibility
gap
Opis:
Easy access from platforms to trains is limited by the free space between the platform edge and coach floor, named the gap. The standard definition of the gap is described together with a description of all the difficulties affecting passengers, arising from different platform heights and different passenger vehicle floor placements over the rail head. The gap is a cause of accidents. The article describes techniques which are used to reduce the gap’s infl uence on passenger safety (metro, railway), which may relate to the infrastructure, technical solutions associated with vehicles or platforms, as well as organizational solutions related with appropriate information.
Źródło:
Problemy Kolejnictwa; 2019, 182; 153-167
0552-2145
2544-9451
Pojawia się w:
Problemy Kolejnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Planowane rozwiązania ograniczające lukę podatkową VAT w Polsce. Nowe metody wykrywania nieprawidłowości i ich eliminacji
Planned Solutions Aimed at Reducing VAT Gap in Poland. New Methods for Detecting Irregularities and their Elimination
Autorzy:
Pastuszka, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/417099.pdf
Data publikacji:
2016-08
Wydawca:
Najwyższa Izba Kontroli
Tematy:
VAT
tax gap
tax income
state budget
frauds
reducing the tax gap
Opis:
The tax gap, understood as the difference between the planned (potential) tax incomes to the state budget and the actual amounts of taxes paid by the taxpayers, is influenced by numerous factors. These include all activities undertaken by entrepreneurs aimed at hiding transactions for which taxes should be paid. A special group of such activities are VAT frauds. In his article, the author presents the most important information on illegal practices related to VAT calculation, as well as changes proposed by the Polish government aimed at reducing the respective tax gap. The planned solutions have been assessed from the perspective of their advantages and flaws that directly affect the stability of the operational and legal environment of the taxpayers and the tax administration.
Źródło:
Kontrola Państwowa; 2016, 61, 4 (369); 102-119
0452-5027
Pojawia się w:
Kontrola Państwowa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
VAT gap determinants in the European Union
Determinanty luki VAT w UE
Autorzy:
Pastusiak, Radosław
Bolek, Monika
Pluskota, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2140598.pdf
Data publikacji:
2022-07-15
Wydawca:
Łódzkie Towarzystwo Naukowe
Tematy:
VAT gap
determinants of the VAT gap
GMM
luka VAT
determinanty luki VAT
Opis:
Background: The VAT gap is a key topic in the context of state budget revenues. The European Union introduced measures to support the member states in reducing the VAT gap. However, if such support is to be effective, it must be applied in the areas that are directly related to the VAT gap. Research purpose: The study aims to identify significant determinants of the VAT gap in EU countries. The present study identifies factors that the EU as a whole can deal with to suport member states in reducing the VAT gap. Methods: The study concerns the analysis of descriptive statistics of selected variables and the econometric model with the GMM system, based on which it was possible to identify significant determinants of the VAT gap in the group of EU countries. Conclusions: The key determinants of the VAT gap in the group of EU countries are economic growth and efficiency of governance. As a consequence, the EU policy aimed at reducing the VAT gap should focus mainly on those aspects that have a significant impact on the states’ revenue and are under the jurisdiction of the EU. The most important aspects that the EU as a whole should focus on are the economic growth and the efficiency of the administration’s activities. Indicating the directions of EU action fills the current research gap in this area.
Przedmiot badań: Zagadnienie luki podatku VAT jest kluczowym tematem w kontekście dochodów budżetu państwa. Unia Europejska podejmuje działania wspierające państwa członkowskie w ograniczeniu luki VAT, lecz by to wsparcie miało realny wymiar, musi być skierowane na te obszary, które stanowią rzeczywisty czynnik luki VAT w UE. Cel badawczy: Celem badania jest wskazanie istotnych determinant luki podatku VAT państw UE jako zbioru państw funkcjonujących we wspólnocie gospodarczej. Badanie pozwoli na wskazanie tych czynników, którymi może zająć się UE jako całość, by wspierać państwa wspólnotowe w ograniczaniu luki VAT. Metoda badawcza: Badanie dotyczyło analizy statystyk opisowych wybranych zmiennych oraz zbudowania modelu ekonometrycznego za pomocą systemu GMM, na podstawie którego możliwe było wskazanie istotnych determinant luki VAT w grupie państw UE. Wyniki: Kluczowymi determinantami luki podatku VAT w grupie państw UE są wzrost gospodarczy i efektywność rządzenia. W konsekwencji polityka UE nastawiona na redukcję luki VAT powinna skupiać się wyłącznie na tych aspektach, które mają realnie istotny wpływ i są w gestii organów UE. Najważniejszymi aspektami, na których może się skupić UE jako całość, to wzrost gospodarki oraz poprawa skuteczności i efektywności działań administracji.
Źródło:
Studia Prawno-Ekonomiczne; 2022, 123; 119-132
0081-6841
Pojawia się w:
Studia Prawno-Ekonomiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Political Preferences of QCA Methods Institutes? A Comment on the Availability and Gender Gap Disparity Problems
Autorzy:
Tatarczyk, Dawid
Powiązania:
https://bibliotekanauki.pl/articles/1375457.pdf
Data publikacji:
2021-07-03
Wydawca:
Uniwersytet Śląski. Wydział Nauk Społecznych
Tematy:
QCA
methods institutes
gender gap
Opis:
In this research note, I examine a set of two interrelated questions about the Qualitative Comparative Analysis (QCA) methods institutes. First, I assembled and analyzed a novel dataset that tracks every QCA related training worldwide from 2002 to 2018. My examination finds that although QCA trainings are becoming more popular in Europe, the US is still the single most frequent host country for such events. Secondly, I examine the extent to which gender gap exists among QCA instructors. My findings show that female QCA instructors are severely under-represented, which likely limits their academic and professional opportunities. Thus, the QCA research community appears to be marked by the same structural challenges to diversity and gender equality as other areas of political science. Overall, this paper should of interest to scholars interested in the impact of academic infrastructures on future research trajectories as well as those concerned about gender equality in academia.
Źródło:
Political Preferences; 2021, 28; 23-31
2449-9064
Pojawia się w:
Political Preferences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
GENDER PAY GAP IN THE MICRO LEVEL – CASE OF POLAND
Autorzy:
Śliwicki, Dominik
Ryczkowski, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/453112.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
gender pay gap
wage inequality
Opis:
The paper analyzes the size of the GPG in enterprises located in Poland and with at least 10 employees. For this purpose a linear model is constructed for individual data that allows to distinguish the influence of sex, occupation and education on the earnings. That allows to explain the size of income discrepancies caused by external, objective factors and assess the magnitude of sex discrimination.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2014, 15, 1; 159-173
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unsteady flow through the gap of savonius turbine rotor
Autorzy:
Świrydczuk, J.
Doerffer, P.
Szymaniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/1934037.pdf
Data publikacji:
2011
Wydawca:
Politechnika Gdańska
Tematy:
Savonius turbine
rotor gap
vortices
Opis:
The paper presents a numerical analysis of unsteady flow through the gap of a Savonius turbine rotor, performed for varying integral turbine operating parameters calculated for the case under study as well as obtained from experiments described in the literature. Changes in the unsteady flow pattern, including the development and interaction of numerous vortex structures in the vicinity of the gap, and their relevance to the varying integral parameters are discussed. We conclude that the structure responsible for the intensity of the flow through the gap is a vortex which forms in the vicinity of the gap at certain phases of rotor revolution, and that a possible way to improve the efficiency of operation of a Savonius turbine is to control the intensity of this vortex by modifying the shape of the blade edges in the vicinity of the gap.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2011, 15, 1; 59-70
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efektywność szacowania podstawy opodatkowania
Efficiency of the tax base assessment
Autorzy:
Ginter, Michał
Powiązania:
https://bibliotekanauki.pl/articles/569974.pdf
Data publikacji:
2015
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
tax
tax gap
tax revenues
Opis:
Avoiding paying taxes, if is becomes a common phenomenon, inevitably leads to the collapse of public finances. The aim of this publication is to discuss basic tax estimation, the presentation of the essence of the matter and its efficiency evaluation. The important part of the publication is an analysis of the effectiveness of estimating the tax base on the basis of information provided by a representative group of tax offices. The study included the results of the study group offices in the 2007–2011 period. The paper also evaluated the effectiveness of estimating the tax base in the light of the case law of administrative courts. The study shows the small importance of the institution of estimating a tax base as an effective mechanism for reducing the tax gap in Poland. This shows the need for a further reform of the Polish tax system, to simplify tax structure.
Źródło:
Ekonomia XXI Wieku; 2015, 2 (6); 55-69
2353-8929
Pojawia się w:
Ekonomia XXI Wieku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The System of Teachers’ Professional Advancement and Potential Threats to Building Their Identity Within Its Framework
Autorzy:
Anna, Wiłkomirska,
Anna, Zielińska,
Powiązania:
https://bibliotekanauki.pl/articles/891970.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
teacher
identity
development
change
gap
Opis:
Professional identity combines some elements of personal and social identity in the area of goals, values, principles and measures. The paper focuses on the reflection of ambiguity of creating teachers’ professional identity during educational reform. The new system of teachers’ professional advancement has been in place in Poland for more than ten years. We have conducted complex empirical research aimed at comprehensive evaluation of that system (teachers, heads of schools and local authorities were surveyed). The theoretical framework is constructed on the concepts of the contemporary narrative theories of Ch. Taylor, A. Giddens, P. Ricoeur. There is a yawning gap between the path of improvement of quality imposed by the formal requirements of the system and the needs and educational aims formulated by teachers themselves, stemming from their everyday practice. The research provided important implication for educational policy, such as: a necessity for combining statutory requirements with particular school needs and teachers’ individual development.
Źródło:
Kultura Pedagogiczna. Międzynarodowe Pismo Pedagogiczne; 2015, 02(1); 65-78
2391-9175
2450-1816
Pojawia się w:
Kultura Pedagogiczna. Międzynarodowe Pismo Pedagogiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Air gap measuring system for purpose of diagnostics and condition monitoring
System mierzenia przestrzeni powietrza w celu monitoringu i diagnostyki stanu
Autorzy:
Volkovas, V.
Mikalauskas, R.
Eidukeviciute, M.
Powiązania:
https://bibliotekanauki.pl/articles/327326.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
diagnostics
monitoring
air gap measurement
Opis:
Maszyny elektryczne, np. generatory turbin hydraulicznych - to są systemy elektromechaniczne z asymetrią przestrzeni powietrza, która wywiera wpływ na proces generowania i charakteryzuje stan techniczny generatora. Konieczne jest šledzenie przestrzeni powietrza w generatorach, wykorzystując urządzenia mierzenia. Podczas tej pracy rozwija się podstawa teoretyczna przestawnika mierzenia przestrzeni powietrza, jest badany matematyczny model systemu rotorycznego z przestrzenią powietrza. W atrykule są przetwornika niektóre obliczenia, związek między sygnałem wychodzącym przetwornika a parametrami geometrycznymi przetwornika, rozmieszczeniem jego elementow względnie jegen drugiego. Wyniki mogą byc wykorzystane w celu optymizacji ukladu przetwornika i konstrukcji, stosowanej dla mierzeń w praktyce. Takže byli ustawione czynniki, mające wpływ na wynniki mierzenia i był przedstawiony model niekrelonego mierzenia.
Converters (EMC) with air gap asymmetry, which influences the quality of generation process and characterises the technical condition of the generator. It is necessary to supervise air gap in generators, using measurement equipment. This work was intended to develop a theoretical basis for design of air gap measurement converter, investigating the mathematical model of rotary system with an air gap. The paper presents some numerical results of calculations, relationship between the converter's output signal and converter's geometrical parameters as well as their position in respect of each other can be used to achieve and optimal converter design. Measurement uncertainty model was developed and presented too.
Źródło:
Diagnostyka; 2004, 30, T. 2; 169-174
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparation of Polish police officers for peace missions
Autorzy:
Kuć, Kamil
Trzcińska, Walentyna
Powiązania:
https://bibliotekanauki.pl/articles/576437.pdf
Data publikacji:
2019-01-25
Wydawca:
Akademia Sztuki Wojennej
Tematy:
GAP
H2020
Gaming for peace
Gap Project
police
Foreign missions
training
Polish Police Contingent
Opis:
Conflicts in the 21st century have forced qualitative changes in the way of training missionary personnel. Police forces are currently used in various joint operations, which include, among others, elements of the fight against terrorism, ensuring the security of civilians and training of security forces. New types of operations require corrected preparation systems. This article analyses the previous way of preparing such units as Individual Police Officers, Specialized Police Teams, Formed Police Units, as well as the issue related to the training modification proposal, and one of them is the implementation of the virtual game “Gaming for Peace” as a supplement to the training gap through modern and more effective training.
Źródło:
Security and Defence Quarterly; 2019, 23, 1; 126-143
2300-8741
2544-994X
Pojawia się w:
Security and Defence Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concerning the Shock Sensitivities of Certain Plastic Bonded Explosives Based on Attractive Cyclic Nitramines
Autorzy:
Zeman, S.
Elbeih, A. E.
Hussein, A.
Elshenawy, T.
Pelikán, V.
Yan, Q-L.
Powiązania:
https://bibliotekanauki.pl/articles/358824.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
nitramines
gap test
PBX
sensitivity
performance
Opis:
Plastic bonded explosives (PBXs) based on ε-2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (ε-HNIW), 1,3,5-trinitro-1,3,5-triazinane (RDX), β-1,3,5,7-tetranitro-1,3,5,7-tetrazocane (β-HMX) and cis-1,3,4,6-tetranitro-octahydroimidazo-[4,5-d]imidazole (BCHMX) were prepared using a hydroxyl-terminated polybutadiene as a binder (HTPB) and cured with hexamethylene di-isocyanate (HMDI). Recently published data for analogous PBXs with a polyisobutylene binder (i.e. a C4 matrix) are also included. All of these PBXs were tested using the Small Scale Water Gap Test according to STANAG 4490, the results of which are directly proportional to the impact and friction sensitivities of the PBXs studied. Reciprocal ratios between the shock sensitivity of these PBXs and their performance were found using the volume heat of explosion as a variable; a semi-logarithmic analogue, using a representative of the detonation pressure (product ρD2) as a variable, has shown an opposite trend for three of these PBXs. A semi-logarithmic relationship between the shock sensitivity of the PBXs and the impact sensitivity of their pure nitramine fillers has confirmed the higher shock reactivity of the C4 PBXs filled with both technical ε-HNIW and RS-ε-HNIW, while for the HTPB PBXs filled with technical grade ε-HNIW, the shock sensitivity found was as expected. The shape and size of the particles should not be a reason for the increased resistance to shock of HMX-C4.
Źródło:
Central European Journal of Energetic Materials; 2017, 14, 4; 775-787
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On a gap series of Mark Kac
Autorzy:
Fukuyama, Katusi
Powiązania:
https://bibliotekanauki.pl/articles/965898.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
cocycles
gap theorem
central limit theorem
Opis:
Mark Kac gave an example of a function f on the unit interval such that f cannot be written as f(t)=g(2t)-g(t) with an integrable function g, but the limiting variance of $n^{-1/2}\sum_{k=0}^{n-1} f(2^kt)$ vanishes. It is proved that there is no measurable g such that f(t)=g(2t)-g(t). It is also proved that there is a non-measurable g which satisfies this equality.
Źródło:
Colloquium Mathematicum; 1999, 81, 2; 157-160
0010-1354
Pojawia się w:
Colloquium Mathematicum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of switching impulse breakdown voltage of complex gap based on SVM
Autorzy:
Tang, Zhenpeng
Qin, Yuancheng
Wu, Changsheng
Mai, Ronghuan
Powiązania:
https://bibliotekanauki.pl/articles/2086723.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
complex gap
electric field features
SVM
Opis:
Complex gaps may be formed when carrying out live working in substations, while the discharge characteristics of complex gaps are different from those of single gaps. This paper focuses on the prediction of critical 50% positive switching impulse breakdown voltage (50,crit+) of phase-to-phase complex gaps formed in 220 kV substations. Firstly, several electric field features were defined on the shortest discharge path of the complex gap to reflect the electric field distribution. Then support vector machine (SVM) prediction models were established according to the connection between electric field distribution and breakdown voltage. Finally, the 50,crit+ data of the complex gap were obtained through twice electric field calculations and predictions. The prediction results show that the minimum 50,crit+ of phase-to-phase complex gaps is 1147 kV, and the critical position is 0.9 m away from the high voltage conductor, accounting for 27% of the whole gap. Both critical position and voltage are in good agreement with the values provided in IEC 61472.
Źródło:
Archives of Electrical Engineering; 2022, 71, 2; 507--521
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review on Multi-dimensional Zinc Oxide Nanostructures
Autorzy:
Acharyya, Sarani
Acharyya, Swarnali
Samanta, Pijus Kanti
Powiązania:
https://bibliotekanauki.pl/articles/1031833.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Band-gap
Morphology
Semiconductor
Zinc Oxide
Opis:
Nanostructured materials are being widely investigated due to their versatile properties leading to promising applications in various areas starting from electronics to environment and medical science. Amongst the various investigated nanostructures, Zinc Oxide (ZnO) is very important because of its versatile properties like high and direct band gap, optical transparency, room temperature ferromagnetism, piezoelectric property and gas sensing property. This mini review article is focused on the morphological study of various ZnO nanostructures starting from hierarchical nanostructures to quantum dots.
Źródło:
World Scientific News; 2020, 147; 140-165
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the spectrum of periodic perturbations of certain unbounded Jacobi operators
Autorzy:
Sahbani, J.
Powiązania:
https://bibliotekanauki.pl/articles/256015.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
essential spectrum
spectral gap
periodic perturbation
Opis:
It is known that a purely off-diagonal Jacobi operator with coefficients [formula] has a purely absolutely continuous spectrum filling the whole real axis. We show that a 2-periodic perturbation of these operators creates a non trivial gap in the spectrum.
Źródło:
Opuscula Mathematica; 2016, 36, 6; 807-818
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statystyczny portret Polski i Norwegii w świetle wskaźników zrównoważonego rozwoju
Statistical portrait of Poland and Norway in the light of sustainable development indicators
Autorzy:
Zimny, Artur
Powiązania:
https://bibliotekanauki.pl/articles/446990.pdf
Data publikacji:
2015
Wydawca:
Mazowiecka Uczelnia Publiczna w Płocku
Tematy:
sustainable development
development gap
Polska
Norway
Opis:
The purpose of this article is an attempt to prove that it is very unlikely that the development gap between Poland and Norway will be significantly reduced in the coming years. This thesis has been verified by identifying position of both countries in the field of sustainable development - to be more precise: in the context of the ten dimensions of development (SDI theme) included in the EU Sustainable Development Strategy (socioeconomic development, sustainable consumption and production, social inclusion, demographic changes, public health, climate change and energy, sustainable transport, natural resources, global partnership, good governance). As a result the distance between Norway and Poland in the field of sustainable development has been indicated. The study was based on information obtained from the database of Eurostat and the OECD. Generally speaking the sustainable development indicators were presented in relation to the 2004 and 2013 years.
Źródło:
Zeszyty Naukowe PWSZ w Płocku. Nauki Ekonomiczne; 2015, 2(22); 361-375
1644-888X
Pojawia się w:
Zeszyty Naukowe PWSZ w Płocku. Nauki Ekonomiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of the causes and consequences of the information gap in IT projects. The client’s and the supplier’s perspective in Poland
Autorzy:
Wachnik, Bartosz
Pryciński, Piotr
Murawski, Jakub
Nader, Mirosław
Powiązania:
https://bibliotekanauki.pl/articles/2067406.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
information gap
IT project
ERP
CRM
Opis:
The high IT project failure rate means that the stakeholders start recognizing the need to analyze the factors influencing project success, previously deemed irrelevant in the face of technology, including the agile approach, eliminating project documentation, effective prototyping, information asymmetry between project parties, while also perfecting communication and the methods of knowledge transfer between team members. Currently, IT projects are researched using a holistic approach, seeing an implementation project as a whole, subject to specific regularities, which may not be deduced based on the knowledge of their individual components. We would like to enrich the research perspective with the notion of the information gap. The article aims to evaluate and analyze the information gap in ERP and CRM project implementations. We have researched the information gap from the perspective of project managers on the supplier’s and the client’s sides. The study was conducted in Poland between 2014 and 2021 in a group of medium companies, using qualitative research methods: unstructured interview and direct observation. The study led to a qualitative characterization of the information gap and the identification of its causes and consequences. The presented research result can help achieve three goals, i.e. studying the information gap in the selected group of IT projects, indicating the nature of imperfection in information access by the project participants, and raising awareness amongst project managers regarding risk management issues, especially uncertainty. Reducing the information gap can be used by the transaction parties to implement a strategy of building the object’s resilience to uncertainty and its consequences. These results can help develop methodologies of IT project implementation, limiting the level of risk and uncertainty.
Źródło:
Archives of Transport; 2021, 60, 4; 219--244
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proba wyjasnienia regionalnego zroznicowania miedzyplciowej luki placowej w Polsce
EXPLAINING REGIONAL VARIATION IN GENDER WAGE GAPS IN POLAND
Autorzy:
Sloczynski, Tymon
Powiązania:
https://bibliotekanauki.pl/articles/413727.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Warszawski. Instytut Ameryk i Europy. Centrum Europejskich Studiów Regionalnych i Lokalnych (EUROREG)
Tematy:
WAGE GAP
WAGE DISCRIMINATION
DECOMPOSITION METHODS
Opis:
In this paper, the author provides a description and an explanation of regional variation in gender wage gaps in Poland, and shows that the gap is especially large in the Silesian Voivodeship (ca 25.44%). He presents several explanations for this phenomenon. First, gender wage discrimination is likely to be especially strong in Silesia. Second, in this region, men typically work in bigger firms than women. Third, the distribution of women between different occupations and industries in Silesia is especially disadvantageous for their relative wages. Fourth, the structure of occupational wage differentials in Silesia is also unfavourable for women, i.e. predominantly female occupations pay relatively less in Silesia than in other regions.
Źródło:
Studia Regionalne i Lokalne; 2012, 3(49); 65-84
1509-4995
Pojawia się w:
Studia Regionalne i Lokalne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Gap Study between Employers’ Expectations in Thailand and Current Competence of Master’s Degree Students in Industrial Engineering under Industry 4.0
Autorzy:
Pattanapairoj, Sirorat
Nitisiri, Krisanarach
Sethanan, Kanchana
Powiązania:
https://bibliotekanauki.pl/articles/1839573.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
przemysł 4.0
badanie Gap
edukacja inżynierska
Gap study
engineering education
MSIE curriculum
industry 4.0
Opis:
Industry 4.0 is an era in which the manufacturing industry has adopted digital technologies and the Internet to enable smart manufacturing system, machines used in the production now can communicate with each other and exchange information between each other, and the machinery used in the manufacturing process is more modern and precise. Therefore, educational institutions should develop the curriculum to produce qualified graduates with the knowledge required for the Industry 4.0 era, especially Industrial Engineering graduates who are directly related to the industry sector. The purpose of this research is to collect the data for the Master of Industrial Engineering (MSIE) curriculum development. The Analytic Hierarchy Process (AHP) technique is used to rank the indicators of knowledge that is important to the employment of graduates with a master’s degree in Industrial Engineering, and study the gap between the expectations of employers and the ability of the current MSIE students of Khon Kaen University. The results of the study reveal that the first indicators that are most important to the employment of MSIE graduates is the knowledge of Industry 4.0 strategy and the knowledge that the students should have developed are the collaboration of humans and robots, big data analytics, real time data usage and databased decision making.
Źródło:
Production Engineering Archives; 2021, 27, 1; 50-57
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On finite functions with non-trivial arity gap
Autorzy:
Shtrakov, Slavcho
Koppitz, Jörg
Powiązania:
https://bibliotekanauki.pl/articles/729003.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
essential variable
identification minor
essential arity gap
Opis:
Given an n-ary k-valued function f, gap(f) denotes the minimal number of essential variables in f which become fictive when identifying any two distinct essential variables in f.
We particularly solve a problem concerning the explicit determination of n-ary k-valued functions f with 2 ≤ gap(f) ≤ n ≤ k. Our methods yield new combinatorial results about the number of such functions.
Źródło:
Discussiones Mathematicae - General Algebra and Applications; 2010, 30, 2; 217-245
1509-9415
Pojawia się w:
Discussiones Mathematicae - General Algebra and Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of Gender Wage Gap on Sectoral Economic Growth – Cross-country Approach
Autorzy:
Wolszczak-Derlacz, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/517291.pdf
Data publikacji:
2013
Wydawca:
Instytut Badań Gospodarczych
Tematy:
gender wage gap
economic growth
manufacturing sectors
Opis:
We propose an empirical analysis of testing the relationship between gender wage gap and economic growth. The study takes into account 12 manufacturing sectors in 18 OECD countries for the period between 1970 and 2005.We use industrial statistics (EU KLEMS, 2008) on female and male wages that distinguish between wages paid to different groups of workers classified according to skill level: high, medium and low. We estimate augmented production function where the male-female wage differentials constitute a potential channel influencing growth (posi-tively or negatively). Our research is motivated by the ambiguous results of previous empirical studies (e.g.: Seguiono 2000; Busse, Spielmann 2006; Seguino 2011; Schober, Winter-Ebmer 2011). Our main findings indicate that gender wage gap for high, medium and low-skilled workers is negatively correlated with sectoral growth. This results are confirmed in a number of robustness checks.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2013, 8, 3; 103-122
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The military-geographical significance of the Suwałki gap
Autorzy:
Parafianowicz, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/576433.pdf
Data publikacji:
2017-12-31
Wydawca:
Akademia Sztuki Wojennej
Tematy:
national security
military activities
the Suwałki Gap
Opis:
Dynamic changes in the security environment are forcing us to reflect on the shape of the international order at the end of the second decade of the 21st century. The aggressive policy of the Russian Federation, which is confirmed by the conflict with Georgia in 2008 and the current situation in Ukraine, indicates that the use of military violence in the resolution of international disputes is not a historical category at all. This is of particular importance to the geopolitical location of the Republic of Poland. The length of our land border with the Russian Federation is 210 km, while with Belarus it is 418 km. The above fact has a fundamental impact not only on the public debate on the security of our country and the region, but also, and perhaps most importantly, on the shape of defence policy and the content of planning possible measures to prevent and counteract the escalation of prospective tensions in NATO-Russia relations. Both Russian military doctrine and the opinions expressed by politicians and specialists dealing with military issues and political and military experts indicate that, from the Russian perspective, the Baltic States’ membership of the North Atlantic Alliance and the presence of NATO troops on the territory of these countries, is highly unfavourable. Therefore, there are grounds to believe that countries such as Lithuania, Latvia and Estonia, are treated by Russia as natural bridgeheads, convenient for bringing possible strikes against Russia. Therefore, it is possible that blocking communication routes leading to these countries, while cutting them off from the support of allied land forces, may prove to be a key success factor in the situation of a hypothetical armed conflict, aimed not only at depriving these countries of their sovereignty, but also aimed at discrediting the power of the Alliance.
Źródło:
Security and Defence Quarterly; 2017, 17, 4; 3-20
2300-8741
2544-994X
Pojawia się w:
Security and Defence Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On development capability
Autorzy:
Myszewski, J. M.
Powiązania:
https://bibliotekanauki.pl/articles/409550.pdf
Data publikacji:
2014
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
development
capability
gap
organization
effectiveness
efficiency
model
Opis:
Purpose of the text is to study a concept of development capability and possibility to express it quantitatively. Concept of organization’s development is shown as process of eliminating gaps encountered by organization. A mathematical model of “problem cleaning” is used. It is shown that: There is a mathematical model of closing development gap, which involves characteristics of gap, of resources and parameters of development process. There are four quantities that determine performance of development process. They refer to organization’s characteristics that are set by the strategic management. Model illustrates impact of strategic decisions on effectiveness of development and shows that “time to gap” is one of key factors that determine development capability.
Źródło:
Research in Logistics & Production; 2014, 4, 1; 55-66
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Validation of selected presented method measured of length fatigue gap on compressor blades forming during resonant tests
Autorzy:
Kuźniar, M.
Bednarz, A.
Lichoń, D.
Witek, L.
Powiązania:
https://bibliotekanauki.pl/articles/243027.pdf
Data publikacji:
2017
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
crack propagation
gap
thermovision
turbine engine
blades
Opis:
In this work, the validation of selected presented method measured of length fatigue gap was shown. The article describes three methods of determining fatigue gaps. The object of the study was the first stage compressor blade from aircraft engine. Blades have defects on the leading edge. This defect on the blade (as a result of the resonance vibration) was the origin point of the fatigue gap. Two of the methods, fluorescent and thermovision, were optical. The fluorescent method was a direct measurement, whereas direct-indirect thermography. The last of the presented methods was an analytical method, showing an algorithm based on amplitude-frequency characteristics. The advantages and disadvantages of these methods were compared. As a result of the analysis performed by the algorithm, there were specified patterns defining the dependence of change in crack length depending on the asymmetry of AF characteristics. The accuracy of the following methods and the results obtained for chord length were determined. Thanks to such use, these results have a utilitarian meaning. Such a compilation allowed us to evaluate the usefulness of particular measurement methods. Proposed methods of measuring the length of fatigue crack are used in experimental studies. It is also possible to implement them for research conducted during the operation of an aircraft engine.
Źródło:
Journal of KONES; 2017, 24, 3; 151-158
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scientific achievements obtained in the project MTKD-CT-2004-517226 in years 2005-2008
Autorzy:
Wierzcholski, K.
Miszczak, A.
Powiązania:
https://bibliotekanauki.pl/articles/243524.pdf
Data publikacji:
2008
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
hydrodynamic pressure
hyperelastic human joints
deformable gap
Opis:
The synovial joint has two main components: solid one represented by the cartilage, and bio-fluid by the synovial fluid. The cartilage is a soft anisotropic solid containing pores filled with a fluid. In this paper is determined the pressure distributions in a thin layer of non-Newtonian, lubricant inside the deformable gap of spherical human hip joint. The load carrying capacities in human joints with cartilage deformations are much smaller than that obtained for not deformable cartilage surface. The changes of the joint gap height during the lubrication process are caused by the deformation of two cooperating spherical joint surfaces covered by the soft cartilage superficial layer. Hypo-elastic deformations of cartilage are taken into account. In the general case the cartilage can be subjected to large deformations. The main results described in this paper are as follows: 1.Numerical calculated values of pressure distributions for the elbow cylindrical human joints performed in this paper by virtue of analytical models taking into account the effects of congenial and growth influences on the lubrication process are compared with initial measured hydrodynamic pressure values performed by means of AFM. Measured pressure values obtained by the S. Chizhik et al. 2006 in experimental way, are different about 7 percent from the numerical values obtained in presented paper using the analytical solutions. 2.In presented paper is derived the modified Reynolds equation containing the terms describing the influences of congenial and genetic properties of the lubricant and micro-bearing materials on the pressure and load carrying capacity of bio-joints and micro-bearing. The comparisons presented in this project between human bio-joints and micro-bearings are indicated that the biobearing theory of lubrication is very helpful in MEMS and NEMS devices. The research presented in the project provides an important impact for developing the new scientific domain such as cyto-tribology, histo-tribology or tribology of cells, and tissue and of micro-surfaces occurring in mechanical micro-bearings. According to the participants knowledge such scientific domains are completely new and have been not so far initiated by any scientific centre and in any area of tribology and tissue engineering.
Źródło:
Journal of KONES; 2008, 15, 3; 543-549
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optical and Dielectrical Properties of (PEG-CMC) Films Prepared by Drop Casting Method
Autorzy:
Abdali, O. Karrar
Abdulazeez, O.
Powiązania:
https://bibliotekanauki.pl/articles/1192693.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Optical Properties
Energy Gap
PEG and CMC
Opis:
Films of PEG after and before doped by carboxymethyle cellulose CMC were deposed on glass substrates by drop casting method. The absorbance and transmittance spectra have been recorded for all the deposited films in order to study the optical constants such as, refractive index, extinction coefficient, optical conductivity, real and imaginary parts of the dielectric constant, these additives effect all the parameters under study and enhance their value especially the optical absorption. The values of absorption coefficient refer to allowed direct transition.
Źródło:
World Scientific News; 2016, 46; 189-203
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CdO thin films Grown by Chemical Spray Pyrolysis and Effect of Substrate type on its Optical Properties
Autorzy:
Abood, Mohmood Muwafaq
Jabbar, Wasmaa Abdulsattar
Daroysh, Hassan Hadi
Qader, Kameran Yasseen
Al-Baidhany, Ismaeel A.
Hussin, Hadi Ahmed
Jasim, Marwah Nasif
Powiązania:
https://bibliotekanauki.pl/articles/1194135.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
CdO
Optical properties
Thin Film
energy gap
Opis:
Cadmium oxide (CdO) thin films were formed by chemical spray pyrolysis technique for different substrate type (glass, quartz, ITO). Absorption spectra were recorded from UV-Visible spectrophotometer in the range of 300-900 nm. The absorbance increased when the glass substrate replaced to quartz or ITO substrate, also this behavior for absorption coefficient and extinction coefficient. While the refractive index tack unstable behavior. The energy gap decreased from 2.4 eV for CdO thin film deposited on glass substrate to 2.36 eV for CdO thin film deposited on ITO substrate.
Źródło:
World Scientific News; 2016, 57; 41-47
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparation of ZnO thin film using sol-gel dip-coating technique and their characterization for optoelectronic applications
Autorzy:
Chaudhary, Preeti
Kumar, Vipin
Powiązania:
https://bibliotekanauki.pl/articles/1075562.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Band gap
SEM
XRD
ZnO
dip coating
Opis:
ZnO thin film with an aim to employ in opto-electronic applications was prepared using sol-gel dip-coating route and thereafter sintered at temperature 500 ºC. The film has been investigated by XRD pattern, SEM, UV-Vis and photoluminescence spectroscopy for physical and optical characterization of ZnO thin film. X-Ray diffraction pattern analysis reveals the polycrystalline nature with hexagonal wurtzite structure having orientation along the plane (002). Scanning electron micrograph shows symmetrical dense ZnO rod throughout the surface. The diffuse reflectance spectrum is studied in the range of wavelength 300-800 nm. A band gap of 3.21 eV is calculated using Kubelka-Munk function. PL spectrum shows strong peak at 380 nm due to oxygen vacancy of ZnO.
Źródło:
World Scientific News; 2019, 121; 59-66
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pustka w języku - horror vacui ?
Emptiness in language - horror vacui?
Autorzy:
Chrzanowska-Kluczewska, E.
Powiązania:
https://bibliotekanauki.pl/articles/1008901.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Opolski
Tematy:
CONCRETISATION
EMPTINESS
GAP'S DENSITY
PRAGMATIC GAME
TEXT
Opis:
The authoress argues that the conception of emptiness, ambivalent on physical and philosophical grounds, can be projected onto natural language. On the one hand, we can face here 'absolute emptiness', which is a total lack of certain elements in the linguistic system, on the other - gaps that tend to be filled in by the language user. It seems that the natural human propensity to complete the encountered empty places, lacunae, areas of indeterminacy, or blind spots is also well-visible in language and although such gaps can be spotted at each linguistic level, their occurrence is especially interesting at the level of semantics, stylistics and discourse analysis. The question of how interlocutors, readers and translators cope with such areas of blindness has been discussed by philosophers, literary critics, linguists and semioticians (most notably R. Ingarden, W. Iser, U. Eco, L. Dolezel). Dolezel rightly pointed out that 'absences' and 'silences' in texts (mostly fictional) can be either total (i. e. the ontological indeterminacy of fictional worlds) or only apparent (implicit meanings hidden yet recoverable from the text). The authoress of the present article perceives in the ontological incompleteness of fiction an instance of absolute, irrecoverable emptiness, whereas the idea of the text as an inferential machine, which through hints and suggestions prompts the reader to fill in the gaps (the case of concretisation in Ingarden's terminology) squares with her idea of the emptiness that tends toward an ultimate, if only partial completion. One of tenets of this paper is also the gamesome, ludic character of the activity of gap-filling. The completion of empty spaces in texts / discourses is a prototypical pragmatic game of the reader, critic or translator - their quite automatic answer to the authorial move of saturating the text with gaps (the term saturation or density of gaps has been borrowed from Dolezel 1995).
Źródło:
Stylistyka; 2006, 15; 85-98
1230-2287
2545-1669
Pojawia się w:
Stylistyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
„Starzy odprawiają urodziny a młodych do grobu” – o odwracaniu porządków w dramacie Ewalda Palmetshofera "Hamlet umarł. Nawet siły ciążenia"
Autorzy:
Tkaczyk, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1826587.pdf
Data publikacji:
2020-02-06
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
family
generation gap
Austrian drama
Ewald Palmetshofer
Opis:
Ewald Palmetshofer is an Austrian dramatist of the younger generation (born in 1978) who has recently been gaining more and more recognition from both the audience and critics, in Austria as well as in Germany. In his play hamlet is dead. no gravity (which had its world premiere in 2007 at the Schauspielhaus Vienna) he tries to dissect a modern family life on the brink of collapse. Palmetshofer’s characters are struggling in a world without God, in which heaven is only a “machine” and traditional values such as love, mutual trust and respecting your elders are being forgotten. These are being replaced by antagonism, frustration and egoism. This article is an attempt to analyze the play.
Źródło:
Conversatoria Litteraria; 2017, 11; 311-320
1897-1423
Pojawia się w:
Conversatoria Litteraria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regional Differences in Gender Wage Gaps in Poland: New Estimates Based on Harmonized Data for Wages
Autorzy:
Majchrowska, Aleksandra
Strawiński, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2076474.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
gender wage gap
Polska
regional labour markets
Opis:
The aim of this paper was to estimate the gender wage gap in Poland and in the 16 NUTS2 Polish regions in 2010, and to verify the predictions of the spatial monopsony model for Poland with a newly created, harmonized database for wages of individuals in Poland. According to the model, the unexplained part of the gender wage gap, identified with wage discrimination, tend to be lower in regions with more competition between employers. The results of the analyses performed in this paper show that in more urbanized regions the average wages are higher than in the rural ones. In each of the 16 NUTS2 Polish regions, women earn less than men. Raw differences in wages between men and women are largest in the most urbanized regions but a significant part of the differences in those regions can be explained by differences in workers’ characteristics, especially by different sectoral structure of employment. The part of the gender wage gap which remains unexplained, and in the literature is commonly attached to discrimination, is the highest in rural regions of Eastern Poland in line with the predictions of the spatial monopsony model
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2016, 2; 115-141
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent advances in PBG structures
Autorzy:
Vorgul, I.Yu.
Marciniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/308757.pdf
Data publikacji:
2000
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
photonic band gap
photonic crystals
optical communications
Opis:
We propose a review of word science achievements in the extremely extended for the recent few years field of photonic band gap structures The review concerns both theoretical and experimental investigations on PBG structures toward fabrication of the most optimal ones for different applications. The attention is given to the obtained results as well as to the used and developed methods.
Źródło:
Journal of Telecommunications and Information Technology; 2000, 1-2; 71-76
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Szacunki luki płacowej w Polsce w ujęciu regionalnym
Estimates of gender pay gap in Poland in regional terms
Autorzy:
Śliwicki, Dominik
Powiązania:
https://bibliotekanauki.pl/articles/955350.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
gender pay gap
discrimination
luka płacowa
dyskryminacja
Opis:
Celem artykułu jest określenie wpływu metody szacunku średniego wynagrodzenia na wielkość oraz kierunek luki płacowej w Polsce w ujęciu regionalnym. Luka płacowa pomiędzy mężczyznami a kobietami jest negatywnym zjawiskiem badanym i opisywanym w coraz szerszym kontekście. Środowiska naukowe oraz praktycy polityki społecznej wykształcili metody pozwalające na pomiar wielkości luki. Metodologia stosowana przez organy Unii Europejskiej dostarcza tzw. nieskorygowanych szacunków luki płacowej, czyli takich, które nie uwzględniają indywidualnych cech mężczyzn i kobiet. W artykule zaprezentowano szacunki luki płacowej według województw, uzyskane dzięki metodologii europejskiej z wykorzystaniem ośmiu różnych wielkości charakteryzujących przeciętne wynagrodzenia osiągane przez mężczyzn i kobiety.
The aim of the paper is to determine the impact of average pay estimation on the size and direction of the pay gap in Poland in regional terms. The pay gap between men and women is a negative phenomenon that has been analysed and described in an increasingly broader context. Scientific communities and social policy practitioners have developed methods for measuring the size of the gap. The methodology used by the bodies of the European Union allows researchers to obtain the so called unadjusted wage gap estimates, i.e. ones that do not take into account the individual characteristics of men and women. The paper presents the wage gap estimates by province, calculated on the basis of the European methodology, with the use of eight different variables which characterise the average pay earned by men and women.
Źródło:
Optimum. Economic Studies; 2017, 4(88); 154-169
1506-7637
Pojawia się w:
Optimum. Economic Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Financial Deepening in Mexico
Autorzy:
Herman, Alexander
Klemm, Alexander
Powiązania:
https://bibliotekanauki.pl/articles/2040976.pdf
Data publikacji:
2019-01-30
Wydawca:
Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
Tematy:
Mexico
credit gap
credit growth
financial development
Opis:
International comparisons reveal that – even controlling for a host of explanatory factors – credit depth is exceptionally low in Mexico. Using panel data methods linking credit growth and fundamentals, this paper estimates a long-term gap between actual and expected credit of about 40 percent of GDP. Possible explanations include the history of banking crises, the large informal sector and an inefficient legal system. Using a disequilibrium regression approach, this paper also finds that supply factors are particularly important as determinants of credit in Mexico. Recent financial reforms address many of the supply constraints, but their success will depend on implementation. The main challenge going forward will be to support financial deepening, while limiting risks to financial stability.
Źródło:
Journal of Banking and Financial Economics; 2019, 1(11); 5-18
2353-6845
Pojawia się w:
Journal of Banking and Financial Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The gender pay gap and women in managerial positions: V4 countries in the light of the European Union
Luka płacowa oparta na płci w przypadku kobiety na stanowiskach kierowniczych. Kraje Grupy Wyszechradzkiej w świetle sytuacji w Unii Europejskiej
Autorzy:
Kłysik-Uryszek, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/2028192.pdf
Data publikacji:
2020-12-30
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Gender
pay gap
women
V4
EU
Opis:
This research investigates the level of the gender pay gap and gender parity in the Visegrad Group countries in light of the changes that took place in the whole EU during the last decade. The following hypotheses accompany the research objective: (1) the level of the gender pay gap diminished significantly over the last decade in the V4 economies; (2) the V4 countries are following a path to achieve gender parity. Data were taken from Eurostat. The pay gap and the managerial occupations indicators were used to verify the research hypotheses. The empirical investigation did not let us reject the first hypothesis for Poland only. However, it should be rejected for the other V4 economies. In addition, the second hypothesis should be rejected.
Źródło:
Annales. Etyka w Życiu Gospodarczym; 2020, 23, 4; 81-90
1899-2226
2353-4869
Pojawia się w:
Annales. Etyka w Życiu Gospodarczym
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Defect modes properties in one-dimensional photonic crystals employing a superconducting nanocomposite material
Autorzy:
Aly, A. H.
Elsayed, H. A.
Malek, C.
Powiązania:
https://bibliotekanauki.pl/articles/173888.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
photonic crystals
band gap
defect mode
nanocomposite
Opis:
In the present work, we investigate theoretically the transmission characteristics of one-dimensional photonic crystals that contain a defect layer of a nanocomposite material in infrared radiation. The theoretical treatment is obtained depending on the fundamentals of the characteristic matrix method. Here, the nanocomposite designed from nanoparticles of a superconducting material is arranged into a dielectric medium. The numerical results clarify the acute effect of the volume fraction and the operating temperature on the effective permittivity of the nanocomposite material. Therefore, the volume fraction, the operating temperature and other parameters such as the permittivity of the dielectric material and the threshold frequency could have a significant effect on the characteristics of the defect modes. Thus, our structure may be very promising in many applications such as narrow band filters and among optoelectronic applications.
Źródło:
Optica Applicata; 2018, 48, 1; 53-64
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Connexin-dependent intercellular stress signaling in tissue homeostasis and tumor development
Autorzy:
Czyż, Jarosław
Piwowarczyk, Katarzyna
Paw, Milena
Luty, Marcin
Wróbel, Tomasz
Catapano, Jessica
Madeja, Zbigniew
Ryszawy, Damian
Powiązania:
https://bibliotekanauki.pl/articles/1038572.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
carcinogenesis
connexin
gap junctions
cellular stress
tumor
Opis:
Cellular stress responses determine tissue development, homeostasis and pathogenesis. Paracrine signaling, exchange of mechanical stimuli and intercellular transfer of small metabolites via connexin-built gap junctional channels are involved in the cellular stress detection and propagation of stress stimuli in multicellular networks. Cellular stress responses are also regulated through the activity of unpaired connexons (hemichannels) and via the intracellular interference of connexins with the cell cycle and pro-apoptotic machinery. Therefore, connexins are considered as multidirectional transmitters of the "outside-in" and "inside-out" stress signaling that are crucial for tissue homeostasis, regeneration and pathology. In particular, the disturbance of connexin function during the multi-stage process of tumor development leads to abnormal reactions of tumor cells to stress stimuli. In this review, we outline the current knowledge on the multidirectional role of connexins in the detection of stress signals. We also discuss the role of connexin-mediated intercellular transmittance of stress signals in tumour promotion, progression and metastatic cascade. Highlights: 1. Connexins and gap junctions protect cells from the microenvironmental stress and are involved in propagation and intracellular processing of stress signals. 2. The quality and quantity of stress stimuli, which may lead to cell adaptation or death by apoptosis, is determined by intrinsic properties of connexins and the cell phenotype. 3. Connexin deficiency increases the resistance of tumor cells to the "outside-in" stress signaling. 4. The connexin-mediated "inside-out" stress signaling participates in tumor cell invasion during the metastatic cascade.
Źródło:
Acta Biochimica Polonica; 2017, 64, 3; 377-389
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of the synthesis of GAP-HTPB-GAP Liquid Copolymer
Autorzy:
Chmielarek, Michał
Maksimowski, Paweł
Cieślak, Katarzyna
Gołofit, Tomasz
Drozd, Hanna
Powiązania:
https://bibliotekanauki.pl/articles/1062796.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
HTPB
GAP
copolymerization
optimization
liquid energetic binder
Opis:
GAP and HTPB are polymers on which the copolymer obtained in our work is based. The following report indicates how to perform the polymerization reactions for these two polymers in order to obtain a copolymer that combines their individual positive physico-chemical properties. It demonstrates how the ratio of substrates and reaction conditions affect the polymer properties. It has been shown that increasing the amount of epichlorohydrin attached to HTPB significantly affects the copolymer viscosity. This has a later effect on polymer processing, as well as on the hydroxyl values being too low. This is important for the subsequent production of polyurethanes. Analysis of the results allows the reaction conditions to be designed so as to generate a polymer with the best properties. The reactions were carried out in two stages. The first stage was the connection of polyepichlorohydrin (PECH) to HTPB, and the second was azidation of the resultant PECH-HTPB-PECH copolymer. The influence of the amount of epichlorohydrin attached to HTPB on the copolymer properties (e.g. viscosity) was demonstrated. Analysis of the second stage, the preparation of the GAP-HTPB-GAP copolymer (by azidation of the PECH-HTPB-PECH copolymer), showed that the nitrogen content in the copolymer has a significant effect on the viscosity and heat of polymer combustion.
Źródło:
Central European Journal of Energetic Materials; 2020, 17, 4; 566-583
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A New Energetic Binder: Glycidyl Nitramine Polymer
Autorzy:
Betzler, F. M.
Hartdegen, V. A.
Klapötke, T. M.
Sproll, S. M.
Powiązania:
https://bibliotekanauki.pl/articles/358337.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
energetic polymer
glycidyl nitramine
GNAP
GAP
polyGLYN
Opis:
A new energetic glycidyl-based polymer containing nitramine groups (glycidyl nitramine polymer, GNAP) was synthesized using glycidyl azide polymer (GAP) as the starting material. The synthesis involved Staudinger azide-amine conversion, followed by carbamate protection of the amino group, nitration with nitric acid (100%) and trifluoroacetic anhydride and was concluded by deprotection with aqueous ammonia. The products obtained were characterized by elemental analysis and vibrational spectroscopy (IR). The energetic properties of GNAP were determined using bomb calorimetric measurements and calculated with the EXPLO5 V6.02 computer code, showing better values regarding the energy of explosion (ΔEU = −4813 kJ kg−1), the detonation velocity (VDet = 7165 m•s−1), as well as the detonation pressure (pCJ = 176 kbar), than the comparable polymers GAP and polyGLYN. The explosion properties were tested by impact sensitivity (IS), friction sensitivity (FS), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and electrostatic discharge (ESD) equipment. The results revealed GNAP to be insensitive towards friction and electrostatic discharge, less sensitive towards impact (40 J) and a decomposition temperature (170 °C) in the range of polyGLYN.
Źródło:
Central European Journal of Energetic Materials; 2016, 13, 2; 289-300
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differences in income distributions for men and women in the European Union countries
Autorzy:
Landmesser, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/22446427.pdf
Data publikacji:
2019
Wydawca:
Instytut Badań Gospodarczych
Tematy:
gender pay gap
differences in distributions
decomposition methods
Opis:
Research background: Recently there has been an increase in interest in the studies of income inequalities. The findings of numerous empirical studies show that males earn higher wages than females. A variety of techniques of income inequalities decomposition are becoming popular. New procedures go far beyond the Oaxaca-Blinder decomposition. They allow to study differences of income distributions for various groups of people and to decompose them at various quantile points. Purpose of the article: The aim of the paper is to compare personal income distributions in selected countries of the European Union, taking into account gender differences. Methods: First, we examined the income inequalities between men and women in each country using the Oaxaca-Blinder decomposition procedure. The unexplained part of the gender pay gap gave us information about the wage discrimination. Second, we extended the decomposition procedure to different quantile points along the whole income distribution. To describe differences between the incomes of men and women, we constructed the so-called counterfactual distribution, which is a mixture of a conditional distribution of the dependent variable (income) and a distribution of the explanatory variables (individual people?s characteristics). Then, we utilized the residual imputation approach (JMP-approach). Findings & Value added: In the article data from EU-SILC (Statistics on Income and Living Conditions) were used. We found that there exists an important diversity in the size of the gender pay gap across members of the European Union. The results obtained for these countries allowed us to group them into clusters. In general, there are two types of countries in Europe: the countries, where the bulk of the observed income differences cannot be explained by observed characteristics, and the countries, where the explained and the unexplained effects are both positive, with even a bigger explained effect for the lower income ranges.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2019, 14, 1; 81-98
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optical Properties of ZnO Nanoparticles Synthesised from a Polysaccharide and ZnCl₂
Autorzy:
Bindu, P.
Thomas, S.
Powiązania:
https://bibliotekanauki.pl/articles/1032335.pdf
Data publikacji:
2017-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
ZnO nanoparticles
UV-vis
band gap
Urbach energy
Opis:
In this article we study the optical properties of ZnO nanoparticles. This paper describes cost effective, high yield, and a facile synthetic method for the synthesis of ZnO nanoparticles from precursors viz. linear polysaccharide, chitosan, and ZnCl₂ by a precipitation method. The synthesized ZnO nanoparticles were characterized by surface area, pore size, and UV-visible measurements. The optical band gap and the Urbach energy were also calculated and the optical band gap energy of the synthesized ZnO nanoparticles was found to be 3.26 eV and the nature of the optical transition has been identified as direct allowed.
Źródło:
Acta Physica Polonica A; 2017, 131, 6; 1474-1478
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problemy wzrostu monokryształów fosforku galu (GaP) o średnicy 4 i orientacji < 100 > oraz < 111 >
Difficulties in 4 gallium phosphide (GaP) single crystals growing in < 100 > or < 111 > direction
Autorzy:
Orłowski, W.
Mirowska, A.
Hruban, A.
Strzelecka, S.
Powiązania:
https://bibliotekanauki.pl/articles/192234.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Materiałów Elektronicznych
Tematy:
GaP
monokrystalizacja
metoda LEC
crystal growth
LEG method
Opis:
Opracowano warunki otrzymywania monokryształów fosforku galu (GaP) o średnicy 4" i orientacji < 100 > oraz < 111 >. Skonstruowano układy termiczne dla urządzenia MarkIV, w których można otrzymywać metodą Czochralskiego z herme-tyzacją cieczową (LEC - Liąuid Encapsulated Czochralski) duże monokryształy GaP. Zbadano termiczne warunki wzrostu kryształów. Doświadczalnie określono wpływ niektórych elementów układu termicznego na kształt pola temperatur w obszarze wzrostu kryształów. Otrzymano monokryształy GaP o średnicy 4" i orientacji < 100 > oraz < 111 >. Zbadano ich własności elektryczne i strukturalne.
Technological parameters for growing 4"(GaP) single crystals in < 100 > and < 111 > direction were investigated. Thermal systems were constructed for MarklV puller, which allow growing GaP single crystals with big diameter by Liquid Encapsulated Czochralski method. The influence of some of the thermal system elements on the temperature field near the growing crystal was experimentally assessed. GaP crystals of 4" in diameter were obtained in < 100 > and < 111 > direction. Electrical and structural parameters were assessed.
Źródło:
Materiały Elektroniczne; 2010, T. 38, nr 2, 2; 9-19
0209-0058
Pojawia się w:
Materiały Elektroniczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of descriptive models to forecasting seasonal time series with gaps
Autorzy:
Oesterreich, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/424807.pdf
Data publikacji:
2015
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
forecasting of missing data
descriptive models
systematic gap
Opis:
In this paper were presented the results of the application of quasi-simulation methods to analysis the impact of the occurrence of systematic gaps on the accuracy of inter and extrapolative forecasts for time series with seasonal fluctuations. Forecasts were built on the basis of predictors based on descriptive models with seasonally changing parameters. Theoretical considerations will be illustrated by the empirical example. The models estimation and construction of inter- and extrapolative forecasts were done with R and Statistica 10.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2015, 1 (47); 68-77
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geometrical structure for endoprosthesis surface lubrication and wear prognosis
Autorzy:
Wierzcholski, K.
Powiązania:
https://bibliotekanauki.pl/articles/242452.pdf
Data publikacji:
2017
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
endoprosthesis
surface
measurements
gap height
wear
random prognosis
Opis:
It can be stated that over the last ten years in the European Union, the number of bone fractures caused by osteoarthritis has increased twofold. More than 100,000 hip or knee joints in total were implanted in Germany during one year. Within ten years, 5% of them have failed by aseptic loosening. The non-invasive determination of friction forces and control of their values during lubrication of cartilage cells on the superficial layer of human joint surfaces before implantation has a significant but not sufficient impact on the observation of the early abrasive wear of the cartilage joint and development of osteoporosis. From this fact was drawn the inspiration for the performed investigations related to the endoprosthesis surface parameters because knowledge of the roughness of prosthesis surfaces and friction forces and their control methods permits provision of a necessary standard deviation of the gap height and finally information about the implantation possibility. This article has been prepared based on the objective of European Project UE Grant IRSES,612593, 2013-2016 to represent the methodology and goal of the idea described in and make a wider discussion possible on this subject for further developments during the realization. To the research methods and materials used in this article realization belong: Rank Taylor Hobson-Talyscan 150 Apparatus implemented by Talymap Expert and Microsoft Excel Computer Program connected with the Mathcad 15 Professional Program and a new semi-analytical methods of probabilistic and statistic prognosis applied for theory of hydrodynamic lubrication of the curvilinear orthogonal surface and coordinates extended to the friction and wear problems of the endoprosthesis surfaces during the exploitation.
Źródło:
Journal of KONES; 2017, 24, 4; 335-341
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
‘It’s all for girls’: re-visiting the gender gap in New Age spiritualities
Autorzy:
Trzebiatowska, Marta
Bruce, Steve
Powiązania:
https://bibliotekanauki.pl/articles/641015.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
gender gap
New Age spiritualities
health-seeking
masculinity
Opis:
Women’s disproportionate involvement in religion has been the subject of debate in the sociology of religion for some time. In particular, the gender gap in New Age spiritualities appears considerably greater than that found in the congregational sphere of mainstream religion. This article argues that there is nothing in being a woman per se that may attract an individual to certain spiritual activities but rather, that it is the elective affinity between women as a group and such activities that creates the impression of a direct appeal. Much of the holistic spirituality milieu is designed by women for women, not least the most popular elements concerned with healing and well-being. It is therefore possible that the initial gap between men and women is small but it becomes subsequently reinforced and widened due to the gendered nature of alternative spirituality courses, workshops and treatments.
Źródło:
Studia Religiologica; 2013, 46, 1; 17-33
0137-2432
2084-4077
Pojawia się w:
Studia Religiologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Challenge of Terminographic Gaps in Translation: A Text-based Approach Put to Practice
Autorzy:
Mehrpooya, Abbas
Moinzadeh, Ahmad
Dabaghi, Azizollah
Powiązania:
https://bibliotekanauki.pl/articles/620653.pdf
Data publikacji:
2019-01-22
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Specialized discourse
Technical term
Terminological gap
Terminography
Translation
Opis:
The issue of terminographic gaps in specialized discourses has always concerned the researchers and readers alike. However, due to the interlingual nature of such a technical issue, the need for interdisciplinary collaboration between translation and terminography seems to be in prospect. For such a reciprocation scheme to come into practical effect, the present study has aimed to conduct a translational-terminographic concerto by putting a specialized English text to the test of Persian translation. This has been done to answer the question if a translator is required to provide for any terminological gap once all attempts at finding the corresponding terminological items have failed. In this pursuit, certain workable criteria for terminographic proposition via translation have been discussed. As such, the practical phase of this study concerns itself with addressing the issue of Persian terminological gaps in a language-related metadiscoursal field and consequently detecting the problem zones of non-equivalence in a specialised text carefully selected for translation. Ultimately, a list of Persian terminological items constructed on the basis of the proposed translational-cum-terminographical scheme is compiled to address the identified terminological gaps in the target metadiscourse under study.
Źródło:
Research in Language; 2018, 16, 2
1731-7533
Pojawia się w:
Research in Language
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Luka w podatku od towarów i usług oraz sposoby jej ograniczania
Autorzy:
Małecka-Ziembińska, Edyta
Powiązania:
https://bibliotekanauki.pl/articles/630273.pdf
Data publikacji:
2017
Wydawca:
Szkoła Główna Handlowa w Warszawie
Tematy:
Value Added Tax (VAT), Tax gap, Tax fraud
Opis:
The study focuses on the concept and components of the tax gap. In addition, the article presents an estimate of the gap in the value added tax in the European Union for the years 2000-2013. With regard to the Poland, it also identifies the causes of the gap occurrence and actions aimed at reducing its size.
Źródło:
Kwartalnik Kolegium Ekonomiczno-Społecznego Studia i Prace; 2017, 1; 45-60
2082-0976
Pojawia się w:
Kwartalnik Kolegium Ekonomiczno-Społecznego Studia i Prace
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
More Results on The Smallest One-Realization of A Given Set II
Autorzy:
Diao, Kefeng
Lu, Fuliang
Zhao, Ping
Powiązania:
https://bibliotekanauki.pl/articles/31343431.pdf
Data publikacji:
2019-05-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
mixed hypergraph
feasible set
chromatic spectrum
gap
onerealization
Opis:
Let S be a finite set of positive integers. A mixed hypergraph ℋ is a onerealization of S if its feasible set is S and each entry of its chromatic spectrum is either 0 or 1. The minimum number of vertices, denoted by δ3(S), in a 3-uniform bi-hypergraph which is a one-realization of S was determined in [P. Zhao, K. Diao and F. Lu, More result on the smallest one-realization of a given set, Graphs Combin. 32 (2016) 835–850]. In this paper, we consider the minimum number of edges in a 3-uniform bi-hypergraph which already has the minimum number of vertices with respect of being a minimum bihypergraph that is one-realization of S. A tight lower bound on the number of edges in a 3-uniform bi-hypergraph which is a one-realization of S with δ3(S) vertices is given.
Źródło:
Discussiones Mathematicae Graph Theory; 2019, 39, 2; 473-487
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wiedza techniczna i kapitał ludzki w teorii wzrostu gospodarczego
Know-How and Human Capital in the Theory of Economic Growth
Autorzy:
Zajączkowska-Jakimiak, Sylwia
Powiązania:
https://bibliotekanauki.pl/articles/575657.pdf
Data publikacji:
2006-12-31
Wydawca:
Szkoła Główna Handlowa w Warszawie. Kolegium Analiz Ekonomicznych
Tematy:
know-how
human capital
growth theory
technology gap
Opis:
The author presents the evolution of the theory of economic growth and concludes that fundamental questions about the theory of growth should be addressed by applying a general concept of human capital based on knowledge and qualifications. Human capital is the most comprehensive indicator to describe economic growth and differences in affluence among nations. The analysis is divided into two parts. The first part of the study describes the historical evolution of “economic thought”-from a stage where technological progress was treated as an “exogenous phenomenon” and a veritable “manna from the sky,” as the author describes it, to a situation in which technological progress became an “endogenous variable” resulting from the accumulated know-how. The subsequent evolution of the term involved a reevaluation of the role of the human factor in production. With time, economists discovered that, alongside physical capital, human capital was a prime factor that contributed to growth as a driving force behind technological progress. The second part of the work describes the complex role of human capital in the production process. The author notes that, in a modern economy, the human factor determines the development and implementation of new technologies, in addition to the production process itself. Human capital determines the technology gap, the diffusion of know-how and the efficiency of its adaptation. As a result, investment in human capital is a fundamental factor behind development, the author concludes.
Źródło:
Gospodarka Narodowa. The Polish Journal of Economics; 2006, 212, 11-12; 47-69
2300-5238
Pojawia się w:
Gospodarka Narodowa. The Polish Journal of Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial Dynamic Modelling of Tax Gap: the Case of Italy
Autorzy:
Carfora, Alfonso
Pansini, Rosaria Vega
Pisani, Stefano
Powiązania:
https://bibliotekanauki.pl/articles/623739.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
determinants of tax gap
spatial econometrics
panel estimation
Opis:
This paper analyses the determinants of regional tax gap in Italy testing if tax evasion is characterised by spatial persistence. The size of spatial correlation in regional tax gaps has been tested and the role of additional determinants of evasion over the period 2001–2011 has been estimated. Using a dynamic spatial panel model, it is shown that regional tax gap is determined by tax evasion in neighbouring regions and is characterised by spatial persistence. Results make it possible to draw a taxonomy of the determinants of regional tax gap: contextual factors and operational factors linked to the relative efficacy of tax evasion contrasting policies and geography.
Źródło:
European Spatial Research and Policy; 2018, 25, 1; 7-28
1231-1952
1896-1525
Pojawia się w:
European Spatial Research and Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Luka mieszkaniowa – aspekt definicyjny i problem pomiaru na przykładzie Wrocławia
Housing gap – the definition aspect and measurement issue on an example of Wrocław city
Autorzy:
Kamiński, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/582113.pdf
Data publikacji:
2019
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
luka mieszkaniowa
polityka mieszkaniowa
housing gap
housing policy
Opis:
Celem artykułu jest zdefiniowanie pojęcia luka mieszkaniowa, określenie sposobu jej pomiaru oraz zidentyfikowanie skali tego problemu w mieście Wrocławiu. W teoretycznej części publikacji dokonano przeglądu definicji luki mieszkaniowej w literaturze polskiej i zagranicznej, podjęto polemikę oraz zaproponowano autorskie ujęcie tego terminu. Część praktyczna jest próbą weryfikacji empirycznego zastosowania zaproponowanej definicji oraz metody pomiaru na przykładzie miasta Wrocławia. Na podstawie danych statystycznych zawartych w Banku Danych Lokalnych i innych zbiorach GUS podjęto próbę ilościowej i jakościowej oceny zasobu mieszkaniowego oraz zestawienia go z zapotrzebowaniem na lokale mieszkalne.
The aim of this article is to define the housing gap term, set the way of measuring it and identify the scale of this problem in Wrocław. The theoretical part of the paper is a query of housing gap definition in Polish and foreign literature, discussion and proposal of author’s definition. The empirical part is an attempt of practical use of proposed definition on the example of Wrocław city. Based on statistical data included in CIS databases an attempt of quantitative and qualitative rating of housing resources and a comparison with housing demand was made.
Źródło:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu; 2019, 544; 54-60
1899-3192
Pojawia się w:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Economic Growth and Tax Inequality in Japan: Evidence from World War I
Autorzy:
Revelant, Andrea
Powiązania:
https://bibliotekanauki.pl/articles/599769.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Kultur Śródziemnomorskich i Orientalnych PAN
Tematy:
modern Japan
tax burden
inequality
rural/urban gap
Opis:
Tax systems are useful indicators of the economic and political conditions which concur to shape them. With respect to developing countries, an analysis of the tax burden can help to understand how the process of modernization is sustained through fiscal extraction from different social classes and productive sectors. This paper presents statistical evidence on the distribution of taxes in Japan around the time of World War I, which was a pivotal moment for both economic growth and political change. Sources indicate that government officials had a clear perception of inequality and its structural causes; the surveys examined here can therefore be considered a starting point for reform of the tax system, as discussed in the next twenty years.
Źródło:
Acta Asiatica Varsoviensia; 2014, 27; 131-149
0860-6102
Pojawia się w:
Acta Asiatica Varsoviensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Współczesne polimery wysokoenergetyczne
Modern high-energetic polymers
Autorzy:
Kożuch, K.
Wojewódka, A.
Powiązania:
https://bibliotekanauki.pl/articles/1287347.pdf
Data publikacji:
2010
Wydawca:
Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
Tematy:
polimer
materiał wybuchowy
GAP
PNIMMO
PGLYN
polymer
explosives
Opis:
Tematem artykułu są nowe polimery wysokoenergetyczne. Artykuł zawiera dwie zasadnicze części, w pierwszej przedstawiono historię polimerowych związków wybuchowych, oraz podstawy teorii i chemii związków wysokoenergetycznych. Druga część opisuje konkretne polimery o potencjalnych właściwościach wybuchowych, które są najbardziej obiecujące. Uwaga artykułu w tej części skupia się przede wszystkim na kilku wybranych polimerach takich jak poli(azydek glicydylu), poli(3-nitrooksymetylo-3-metylo oksetan), poli(3-nitrooksy tlenek propylenu) czy nitrowany polibutadien zakończony grupami hydroksylowymi.
The article is about new high-energetic polymers. This article comprises two main sections. The first section outlines historical background of using high energetic polymers, gives basics theory of explosives and chemistry of high energetic materials. The second part contain description of high energetic polymers which seems to be the most prospective. Attention, in this part of article, is focused on several selected polymers included glycidyl azide polymers, poly(3-nitratometyl-3-metyl oxetane), poly(glycidyl nitrate) or nitrated hydroxy-terminated polybutadiene.
Źródło:
Chemik; 2010, 64, 1; 15-20
0009-2886
Pojawia się w:
Chemik
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decisiveness of the spectral gaps of periodic Schrodinger operators on the Dumbbell-like metric graph
Autorzy:
Niikuni, H.
Powiązania:
https://bibliotekanauki.pl/articles/254843.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
quantum graph
spectral gap
band structure
Hill operator
Opis:
In this paper, we consider periodic Schrodinger operators on the dumbbell-like metric graph, which is a periodic graph consisting of lines and rings. Let one line and two rings be in the basic period. We see the relationship between the structure of graph and the band-gap spectrum.
Źródło:
Opuscula Mathematica; 2015, 35, 2; 199-234
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przeciwdziałanie nierównościom w dochodach i „luce emerytalnej” między płciami na poziomie UE, ze szczególnym uwzględnieniem wpływu pandemii COVID-19, w świetle aktualnych danych statystycznych i dokumentów programowych UE
Counteracting gender-related wage gap and pension gap on the European Union level, taking into consideration in particular the context of the COVID-19 pandemic, in the light of current statistical data and programmatic EU documents
Autorzy:
Kaleta, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2168667.pdf
Data publikacji:
2021-10-31
Wydawca:
Uniwersytet Warszawski. Wydział Nauk Politycznych i Studiów Międzynarodowych
Tematy:
Unia Europejska
nierówności ze względu na płeć
luka płacowa
luka emerytalna
COVID-19
European Union
gender inequalities
wage gap
pension gap
Opis:
Unia Europejska przewiduje stosowanie zasady równości wynagrodzeń dla pracowników płci męskiej i żeńskiej za taką samą pracę, i gwarantuje środki ochrony prawnej w przypadku dyskryminacji w tym zakresie. Pomimo to nierówności takie utrzymują się, prowadząc do powstania „luki płacowej”, jak również, wskutek kumulacji różnic wynikających z tejże w ciągu ludzkiego życia – „luki emerytalnej”. Ponadto pandemia COVID-19 na rynku pracy wydaje się uderzać znacznie bardziej w kobiety niż w mężczyzn. Aby temu przeciwdziałać, UE będzie dążyć do zmniejszenia do 2030 r. luki w poziomie zatrudnienia między kobietami a mężczyznami o co najmniej połowę w porównaniu z 2019 r., poprzez m.in. zwiększenie poziomu zapewniania wczesnej edukacji i opieki nad dzieckiem, przyczyniającej się do lepszego godzenia życia zawodowego i prywatnego oraz wspierającej większe uczestnictwo kobiet w rynku pracy, jak również szeroki wachlarz propozycji finansowania programów zajmujących się segregacją ze względu na płeć w poszczególnych sektorach gospodarki. Komisja wraz z państwami członkowskimi może także zaproponować wprowadzenie do pracowniczych programów emerytalnych zasady uwzględniania okresu przerwy w pracy z powodu pełnienia obowiązków opiekuńczych jako „składkowego”. Jednakże efekty tych wszystkich zamierzeń wydają się trudne do przewidzenia
The European Union has the principle of equal pay for equal work of male and female employees enshrined in its law, including remedies in case of discrimination. Nevertheless, inequalities in this respect persist in the EU, leading to a ‘wage gap’ and then, through exacerbation of thus created differences in the course of human life, to a ‘pension gap’. In addition, the COVID-19 pandemic appears to be much more adverse towards women than men in the labour market. In order to counter this, the EU will aim to reduce by 2030 the employment gap between men and women by at least half compared to 2019. This would include increasing the level of early childhood education and care provision, contributing to a better work and family life balance, and supporting greater participations of women in the labour market. A wide range of funding proposals for projects combating gender segregation in various sectors of the economy is also being put forward. The Commission, after a consideration together with the Member States, may propose to introduce taking periods of work interruption due to care responsibilities into account as contributory in occupational pension schemes as well. However, the effects of all these plans seem difficult to predict.
Źródło:
Zabezpieczenie Społeczne. Teoria, Prawo, Praktyka; 2021, X, 14; 19-26
2299-2332
Pojawia się w:
Zabezpieczenie Społeczne. Teoria, Prawo, Praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of Clothing Size on Thermal Insulation – A Pilot Study
Autorzy:
Młynarczyk, Magdalena
Orysiak, Joanna
Jankowski, Jarosław
Prus, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/24200936.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
thermal insulation
air gap
air volume
3D scanning
Opis:
Thermal insulation may be influenced by the size of clothing and thus the volume of air gaps. The aim of this study was to determine the relationship between the size of outer wear clothing, and thus the indirect fit (the volume and size of air gaps), and thermal insulation in static and dynamic conditions. A set of underwear and two types of outerwear for workers of the energy sector and the chemical industry were selected for the study. Results showed that the value of thermal insulation (regardless of the type of outerwear) first increased with increasing clothing size.
Źródło:
Fibres & Textiles in Eastern Europe; 2023, 31, 1; 1--8
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Returns to Education and Gender Wage Gap Across Quantiles in Italy
Autorzy:
Furno, Marilena
Powiązania:
https://bibliotekanauki.pl/articles/2075508.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
quantile regression
decomposition
returns to education
gender wage gap
Opis:
Various quantile regression approaches are implemented to analyze the characteristics of Italian data on earnings in the tails. A changing coefficients pattern across quantiles shows increasing returns to education along the wage distribution. A quantile decomposition approach shows that higher education grants higher return at all quantiles, thus implying additional, non-linear returns to higher education throughout the entire pattern of the earning distribution. Wage gender gap displays a decreasing pattern across quantiles, and it does not disappear at the higher quantiles. The southern workers penalty decreases across quantiles as well for highly educated workers.
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2020, 2; 145-169
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural and Optical Properties of Sol-Gel Derived Dip-Coated CdO Thin Film
Autorzy:
Kumari, Renu
Kumar, Vipin
Powiązania:
https://bibliotekanauki.pl/articles/1159724.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Band gap
CdO
Sol-gel dip coating
Thin film
Opis:
In this paper CdO thin film has been prepared by sol-gel dip-coating method on glass substrate. The film was characterized by X-Ray diffraction, UV-Visible spectroscopy and photoluminescence spectroscopy for structural and optical properties of CdO thin film. The XRD pattern shows that film is polycrystalline in nature and has a cubical structure with orientation along (111) plane. The diffuse reflectance spectra for the film is studied in wavelength range 400-800 nm. The direct energy band gap of 2.50 eV is found for the film using modified Kubelka-Munk function. Photoluminescence spectra shows one sharp peak at 540 nm due to oxygen vacancy of cadmium oxide.
Źródło:
World Scientific News; 2018, 113; 210-217
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gender Differences in Educational Attainment: The Evidence from the European Union Countries
Autorzy:
Głodowska, Agnieszka Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/1197732.pdf
Data publikacji:
2019-01-16
Wydawca:
Akademia Ignatianum w Krakowie
Tematy:
gender
gender gap
education
level of education
European Union
Opis:
RESEARCH OBJECTIVE: The aim of the article is to present the results of the analysis on diversity of the education attainment of women and men in the European Union countries. By implementing such a purpose, it is possible to present not only heterogeneity in education on the basis of gender but also disproportions between individual EU countries. THE RESEARCH PROBLEM AND METHODS: The article raises three important research problems: education, gender equality and diversification within the European Union countries. The analysis covers 28 EU countries and a period of 10 years: 2007 - 2016. The research method used in the paper is the analysis and criticism of the literature and taxonomic analysis using a set of diagnostic variables describing selected aspects of education. THE PROCESS OF ARGUMENTATION: The line of reasoning consists of three essential elements. The first part presents the problem of education with particular emphasis on gender gap according to international literature on the subject. The second part contains description of the research tools and methods. Part three of the article presents the results of the comparative study in the field of education of woman and man in the European Union members. RESEARCH RESULTS: The research results are consistent with previous studies indicating that the level of education of women is higher than that of men. The level of diversity of education of women and men in individual EU countries is moderate. Among the most educated economies, the Scandinavian countries should be indicated. On the other side are the countries of southern Europe. The most numerous group of countries are countries with a moderately high and medium-high level of education. CONCLUSIONS, INNOVATIONS AND RECOMMENDATIONS: This type of research can have significant useful value for shaping the education policy of women and men and other development policies. Considering the importance of education of women and men, there are definitely more possibilities of confronting the results of research with various areas of the economy. The lack of this is definitely disadvantage of the elaboration. On the other hand, this is a significant impulse and recommendation for continuing and deepening research in this area.
Źródło:
Horyzonty Wychowania; 2018, 17, 43; 221-230
1643-9171
2391-9485
Pojawia się w:
Horyzonty Wychowania
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical study of the effect the hydroxyl subgroups on the electronic properties of iso-indene molecule
Autorzy:
Obayes, Abbas Ibrahim
Hasan, Nahida B.
Aboud, Hamed Ibrahem
Mohammed, Mohammed Ahmed
Powiązania:
https://bibliotekanauki.pl/articles/1191969.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
DFT
energy gap
ionization potential
hardness and IR-spectrum
Opis:
In this work, six molecules model are optimized at B3LYP/6-31G** density functional theory. Electronic properties of iso-indene molecules were investigated depending on the three parameters (B3LYP) by density functional theory method. The best geometry for all molecules were investigated at (6-31G**) basis sets. The total energies, energy gaps, ionization potentials, electron affinities and softness were calculated for the studied molecules. Adding the (OH) ion and Nitrogen, Sulfur atoms to the iso-indene molecules leads to decrease the energy gap and the hardness of the studied molecules. The IR-spectra shows the effect of adding the (OH) ion and Nitrogen, Sulfur atoms in the ring on the vibrations of the reference molecule, the electronic properties and IR spectrum for all molecules were investigated by Gaussian 03 program.
Źródło:
World Scientific News; 2016, 50; 49-63
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ku Band Bethe Hole Coupler Using Gap Waveguide Technology
Autorzy:
Nematpour, Efat
Ostovarzadeh, Mohamad Hossein
Razavi, Seyed Ali
Powiązania:
https://bibliotekanauki.pl/articles/308679.pdf
Data publikacji:
2019
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
Bethe hole coupler
multi-hole coupler
groove gap waveguide
Opis:
The gap waveguide technology is a new technique used for designing and fabricating microwave components, ensuring a low-loss and easy fabrication process, especially at high frequencies, and allowing for the production of multilayer structures due to the lack of requirement of an electrical connection between the metal layers of the waveguide structure. This paper presents the design and areas of implementation of single-hole and multi-hole 20 dB Bethe couplers, using the groove gap waveguide (GGW) technology for Ku band. Simulation results show that the operating bandwidth of the proposed design is over 40% wider, and its isolation rate is more than 25 dB higher. By using the multi hole configuration, a bandwidth that is more than 59% wider and the isolation rate of over 30 dB may be obtained.
Źródło:
Journal of Telecommunications and Information Technology; 2019, 3; 70-74
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Reinforcement of the TNT System by a Newly-designed GAP-based Polyurethane-Urea: a Molecular Simulation Investigation
Autorzy:
Qian, W.
Shu, Y.
Ma, Q.
Li, H.
Wang, S.
Chen, X.
Powiązania:
https://bibliotekanauki.pl/articles/358512.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
TNT
GAP
polyurethane-urea
inter-molecular interaction
mechanical properties
Opis:
A glycidyl azide (GAP)-based polyurethane-urea (PUU) modifier used in the 1,3,5-trinitrotoluene (TNT)-based composite explosive was investigated by molecular simulation. Inter-molecular interactions were investigated using quantum chemistry calculation on the dimer of TNT and GAP-PUU, and attractive forces were found between the two molecules. The cohesive energy densities and the solubility parameters were obtained through molecular dynamics simulations combined with thermodynamic calculations on the TNT and GAP-PUU amorphous cell models, and the miscibility of the modifier in molten TNT was predicted to be good. The interaction energies and the mechanical properties were then obtained by molecular simulations and mechanical calculations on the solid-phase models of the GAP-PUU with TNT along three crystalline directions, and an improvement in the mechanical properties was predicted.
Źródło:
Central European Journal of Energetic Materials; 2016, 13, 2; 411-426
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing the gender wage gap: Turkey in the years 2002-2019
Autorzy:
Koral, Zeynep Aktaş
Mercan, Murat Anıl
Powiązania:
https://bibliotekanauki.pl/articles/1837687.pdf
Data publikacji:
2021-03-30
Wydawca:
Uniwersytet Ekonomiczny w Poznaniu
Tematy:
gender wage gap
gender wage discrimination
selection bias
Turkey
Opis:
This study investigates the wage diefrential and discrimination between genders in Turkey based on data taken from the nationally representative Turkish Household Labour Survey for 2002 to 2019. The Blinder-Oaxaca decomposition technique was used which was then integrated into the Heckman's selection correction procedure. It was found that the gender wage gap is small in the Turkish labour market, while most of this gap originates from the discrimination against women. In addition ignoring the occupational and sectoral effects on the gender wage gap could result in underestimation of the discrimination effects both directly and indirectly through higher human capital of female employees. Lastly all these indicate that the results could likely be specific to the data set.
Źródło:
Economics and Business Review; 2021, 7, 1; 90-112
2392-1641
Pojawia się w:
Economics and Business Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing L2 vocabulary through multiple-choice, matching, gap-fill, and word formation items
Autorzy:
Kilickaya, Ferit
Powiązania:
https://bibliotekanauki.pl/articles/605712.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
: assessing vocabulary
multiple-choice
matching
gap-fill
word formation
Opis:
Der Band enthält die Abstracts ausschließlich in englischer Sprache.
The current study aims to determine the effect of multiple-choice, matching, gap-fill and word formation items used in assessing L2 vocabulary on learners’ performance and to obtain the learners’ views regarding the use of these types of items in vocabulary assessment. The convenience sampling method was selected, and the participants of the study included 30 freshmen enrolled in the General English course offered in the Department of Public Administration at a state university in Turkey. The main findings revealed that the participants considered the multiple-choice and matching items were easy to understand and to answer and that gap-fill and word formation items were difficult due to several reasons.
L'article contient uniquement les résumés en anglais.
Źródło:
Lublin Studies in Modern Languages and Literature; 2019, 43, 3
0137-4699
Pojawia się w:
Lublin Studies in Modern Languages and Literature
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of mineral surface energy using impact of rough topography
Autorzy:
Can, Muhammed Fatih
Çiftçi, Caner
Powiązania:
https://bibliotekanauki.pl/articles/109996.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
micro-nano roughness
natural stones
surface energy
air gap
Opis:
While some of the studies on the functionalization of surfaces are still in theoretical phase, it is not possible to apply them on natural surfaces which already contain some irregularities. However, progress can be made with a mineral having significant purity, crystal homogeneity, and controllable surface workability for surface treatment operations. Therefore, in this study the effects of roughness on the surface energies of natural stones were investigated by selecting a sample with a distinctive color and metamorphic origin from Mugla, Turkey. First, sample surfaces were prepared using a polishing line with five different abrasives. Three-dimensional surface scans were then performed with ZYGONewView7100 optical-profilometer and ParkSystemAFM to identify the 3D roughness of the surfaces on two different scales (micro and nano) with SPIP-software. The micro average heights (S) of the produced surfaces ranged between 0.423-1.127 µm, nano-scale 0.0806-0.173 µm, while the surface roughness ratio (Sdr) between 33.7%-40.1%, and nano-scale 5.19%-18.5%. The contact angles of the samples were measured in the presence of pure water, formamide, and diiodomethane using AttensionTheta-tensiometer. Changes in surface energy were followed by Van Oss, Good-Chaudrey approach. Young, Wenzel, Cassie-Baxter contact angle theories were tested within these calculations. It was revealed that the inconsistency in solid phase energy could not be determined at this stage, but it could be regulated by modifying the Cassie-Baxter approach. Furthermore, the percentage of air packs likely to be below the water droplet not foreseen by the previous studies was calculated as 26% up to 35% air gap on the solid/water interface.
Źródło:
Physicochemical Problems of Mineral Processing; 2019, 55, 4; 1002-1013
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The relationship between the output gap and excess liquidity: Evidence from Czech Republic, Estonia and Kosovo
Autorzy:
Kastrati, Albulenë
Adnett, Nick
Toçi, Valentin
Powiązania:
https://bibliotekanauki.pl/articles/522022.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Ekonomiczny w Katowicach
Tematy:
Excess liquidity
Output gap
System equation models
Transition economies
Opis:
Aim/purpose – Banks in European Transition Economies are proportionally lending less than their counterparts in the Eurozone in the face of seemingly profitable loan opportunities, whilst apparently continuously holding excess liquidity. The question that arises is whether banks in European Transition Economies are holding excess liquidity that widens the output gap? Design/methodology/approach – Given its endogenous nature, the relationship between the output gap and excess liquidity is estimated using Seemingly Unrelated Regressions method. The research sample covers three European Transition Economies for the period 2004Q1 – 2013Q4. Findings – The results indicate that rather than being in a causal relationship, excess liquidity and the output gap are found to be correlated via common observed and unobserved determinants. Research implications/limitations – The most important policy implication of this research is that since the relationship between output gap and excess liquidity is not causal, reducing excess liquidity will not necessarily lead to a smaller (negative) output gap. There seems to be no straightforward policy framework informed by a clear trans-mission mechanism from excess liquidity to output gap. Originality/value/contribution – This study is novel in two respects. Firstly, assuming endogeneity, a new conceptual relationship between output gap and excess liquidity is presented. Secondly, empirical evidence is presented using the system equation method Seemingly Unrelated Regression, not previously used in this context.
Źródło:
Journal of Economics and Management; 2018, 31; 95-118
1732-1948
Pojawia się w:
Journal of Economics and Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The New Digital Divide: Disinformation and Media Literacy in the U.S.
Autorzy:
Hicks-Goldston, Christina
Applebaum Ritchart, Amy
Powiązania:
https://bibliotekanauki.pl/articles/526465.pdf
Data publikacji:
2019
Wydawca:
Univerzita sv. Cyrila a Metoda. Fakulta masmediálnej komunikácie
Tematy:
Media literacy
Disinformation
Knowledge Gap Theory
Propaganda
Digital Divide
Opis:
This research addresses the impact of disinformation and media illiteracy on civil discourse and informed societal activity in the United States. The research provides analysis of the conditions surrounding disinformation and media illiteracy, as well one proposed solution for the problem: a media literacy educational program for both digital and non-digital natives via an international alliance of experts. Initially, the „Digital Divide“ of the early 21st century referenced individuals unable to access digital information with the same efficiency as those individuals in a household with a personal computer. In 2007, the introduction of smart phone technology transformed some of the Digital Divide population by providing information previously restricted to individuals with PC access to anyone who owned a phone. However, frequency of use is not the equivalent of mastery or thorough understanding. In 2016, the disinformation campaigns surrounding the U.S. presidential election, and later popular culture campaigns such as supposed controversy surrounding Disney’s The Last Jedi, emerged as foreign interference with American culture exploiting cultural divides. This research addresses two things: (1) Recognition of a caveat to the Knowledge Gap Theory in 21st century media interaction; and (2) Creation of a media literacy educational program via an international coalition for the sole purpose of combating disinformation..
Źródło:
Media Literacy and Academic Research; 2019, 2, 1; 49-60
2585-8726
Pojawia się w:
Media Literacy and Academic Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
HgCdTe energy gap determination from photoluminescence and spectral response measurements
Autorzy:
Murawski, Krzysztof
Kopytko, Małgorzata
Madejczyk, Paweł
Majkowycz, Kinga
Martyniuk, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2204344.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
infrared detectors
HgCdTe
photoluminescence
spectral responsivity
semiconductor energy gap
Opis:
The temperature dependence of photoluminescence spectra has been studied for the HgCdTe epilayer. At low temperatures, the signal has plenty of band-tail states and shallow/deep defects which makes it difficult to evaluate the material bandgap. In most of the published reports, the photoluminescence spectrum containing multiple peaks is analyzed using a Gaussian fit to a particular peak. However, the determination of the peak position deviates from the energy gap value. Consequently, it may seem that a blue shift with increasing temperature becomes apparent. In our approach, the main peak was fitted with the expression proportional to the product of the joint density of states and the Boltzmann distribution function. The energy gap determined on this basis coincides in the entire temperature range with the theoretical Hansen dependence for the assumed Cd molar composition of the active layer. In addition, the result coincides well with the bandgap energy determined on the basis of the cut-off wavelength at which the detector response drops to 50% of the peak value.
Źródło:
Metrology and Measurement Systems; 2023, 30, 1; 183--194
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
(C3, C4, C5, C7)-Free Almost Well-Dominated Graphs
Autorzy:
Alizadeh, Hadi
Gözüpek, Didem
Ekinci, Gülnaz Boruzanlı
Powiązania:
https://bibliotekanauki.pl/articles/32387984.pdf
Data publikacji:
2022-11-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
well-dominated graphs
almost well-dominated graphs
domination gap
Opis:
The domination gap of a graph G is defined as the di erence between the maximum and minimum cardinalities of a minimal dominating set in G. The term well-dominated graphs referring to the graphs with domination gap zero, was first introduced by Finbow et al. [Well-dominated graphs: A collection of well-covered ones, Ars Combin. 25 (1988) 5–10]. In this paper, we focus on the graphs with domination gap one which we term almost well-dominated graphs. While the results by Finbow et al. have implications for almost well-dominated graphs with girth at least 8, we extend these results to (C3, C4, C5, C7)-free almost well-dominated graphs by giving a complete structural characterization for such graphs.
Źródło:
Discussiones Mathematicae Graph Theory; 2022, 42, 4; 1099-1117
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza i ocena skuteczności realizacji dochodów podatkowych z VAT w Polsce w okresie od stycznia 2005 r. do kwietnia 2017 r.
An Assessment of the Effectiveness of Value Added Tax Collection in Poland Between January 2005 and April 2017
Autorzy:
Strąk, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/525966.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
Tematy:
VAT
wskaźniki skuteczności
luka podatkowa
tax gap
effectiveness indicators
Opis:
Celem artykułu jest ocena skuteczności realizacji dochodów podatkowych z VAT w Polsce w okresie od stycznia 2005 r. do kwietnia 2017 r. dokonana na podstawie zaproponowanej przez autora procedury badawczej. W artykule wykorzystano metodę badawczą opartą na indeksach dynamiki oraz wskaźniku skuteczności, w tym: wskaźniku C-efektywność oraz luki podatkowej. W wyniku przeprowadzonych badań stwierdzono, że w analizowanym okresie występują znaczące różnice w skuteczności realizacji dochodów z VAT w Polsce. Najgorsze wyniki osiągnięto przy tym dla lat 2012–2013, a najlepsze dla lat 2007–2008. W przypadku analizy skuteczności realizacji dochodów w okresach kwartalnych najlepsze wyniki uzyskano dla I kwartału 2007 r. oraz I kwartału 2017 r. Artykuł jest jednym z nielicznych w literaturze krajowej opracowań poruszających problem analizy i oceny skuteczności realizacji dochodów z VAT w Polsce. Słowa kluczowe: VAT, wskaźniki skuteczności, luka podatkowa.
The objective of the paper is to assess the effectiveness of Value Added Tax (VAT) collection in Poland, in the period between January 2005 and April 2017, based on the research procedure proposed by the author. In the paper, a research method based on dynamics indices and efficiency index, including the C-efficiency index and the tax gap index, was used. The results of the research indicate that in the analysed period there are significant differences in the effectiveness of VAT collection in Poland. The worst result was achieved for the years 2013–2014 and the best for the years 2007–2008. In the case of the effectiveness of the collection in quarterly periods, the best results were obtained for the first quarter of 2007 and the first quarter of 2017. This article is one of the few articles in the national literature that analyses the effectiveness of VAT collection in Poland.
Źródło:
Problemy Zarządzania; 2017, 2/2017 (67), t.1; 105-125
1644-9584
Pojawia się w:
Problemy Zarządzania
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czynniki wyjaśniające zjawisko luki percepcji wśród konsumentów w okresie przyjmowania euro
A Perception Gap Among Consumers at the Time of Euro Adoption
Autorzy:
Mucha, Krystian
Powiązania:
https://bibliotekanauki.pl/articles/575425.pdf
Data publikacji:
2010-02-28
Wydawca:
Szkoła Główna Handlowa w Warszawie. Kolegium Analiz Ekonomicznych
Tematy:
perception gap
single European currency
euro
consumer theory
Inflation
Opis:
The paper describes a wide range of approaches to what is known as a perception gap among consumers in the European Union after most member countries switched to the single European currency in 2002. The author focuses on issues linked with the consumer theory, analyzing why consumers are unable to properly estimate the value of inflation-in terms of its compatibility withtheHarmonized Index of Consumer Prices (HICP), an inflation and price stability indicator used by the European Central Bank. The first part of the paper outlines research theories related to the perception gap. These include the theories of limited rationality and rational passivity, in addition to behavioral economics and neuroeconomics. The second part of the paper discusses factors behind the perception of inflation, taking into account theoretical discussions conducted as part of various scientific disciplines. This approach is designed to show the state of debate on the perception of inflation and stress the growing role of heterodox approaches in contemporary economics, Mucha says.
Źródło:
Gospodarka Narodowa. The Polish Journal of Economics; 2010, 237, 1-2; 67-87
2300-5238
Pojawia się w:
Gospodarka Narodowa. The Polish Journal of Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Catching-up process and public finances of Czechia and Hungary compared with Austria and the Netherlands in 2000-2018
Zmniejszanie luki gospodarczej i sytuacja w dziedzinie finansów publicznych Czech i Węgier w porównaniu z Austrią i Holandią w latach 2000-2018
Autorzy:
Mucha-Leszko, Bogumiła
Powiązania:
https://bibliotekanauki.pl/articles/581732.pdf
Data publikacji:
2019
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
economic gap
deficit, public debt
effectiveness of budgetary policy
Opis:
The subject of the paper is the analysis of economic growth and the situation of public finances in Czechia and Hungary in 2000-2018. The main research objective is to assess the effectiveness of the catching-up process, the budgetary policy and the situation in public finances in terms of the possibility to adjust economies to functioning in a common currency area and to orient budgetary policy towards stabilising economic growth while maintaining safe levels of public deficit and debt. The tools used in the analysis: deficit/ surplus and public debt in relation to GDP, GDP growth rates. In correlation analysis, the Pearson correlation coefficient was estimated. The reference countries for Czechia and Hungary are the Netherlands and Austria. The results of the analysis: Czechia and Hungary have achieved the highest GDP growth rates, Czechia and the Netherlands are the countries with the highest stability of public finances. Conclusions: (1) Czech fiscal policy was effective in terms of its capacity to adjust the economy to function in the single currency area and efficient in stabilising economic growth, (2) Hungary’s expansionary fiscal policy in 2001- -2006 led to the collapse of public finances, but the plan to stabilise them was fulfilled.
Przedmiotem artykułu jest analiza wzrostu gospodarczego i sytuacji w sferze finansów publicznych Czech i Węgier w latach 2000-2018. Podstawowy cel badawczy stanowi ocena efektywności procesu konwergencji i polityki budżetowej oraz stanu finansów publicznych z punktu widzenia możliwości dostosowania gospodarek Czech i Węgier do funkcjonowania we wspólnym obszarze walutowym oraz ukierunkowania polityki budżetowej na stabilizowanie wzrostu PKB przy równoczesnym zachowaniu bezpiecznych granic deficytu i długu publicznego. Zastosowano takie narzędzia analizy, jak: deficyt/nadwyżka i dług publiczny w relacji do PKB oraz wskaźniki wzrostu PKB. W analizie korelacji wykorzystano współczynnik korelacji Pearsona. Rezultaty analizy są następujące: Czechy i Węgry osiągnęły najwyższe stopy wzrostu PKB, a największą stabilnością finansów publicznych charakteryzowały się Czechy i Holandia. Wnioski: (1) polityka fiskalna Czech była efektywna pod względem możliwości dostosowania gospodarki do funkcjonowania we wspólnym obszarze walutowym i stabilizowania wzrostu gospodarczego, (2) ekspansywna polityka fiskalna Węgier w latach 2001-2006 doprowadziła do załamania finansów publicz-nych, niemniej plan ich stabilizacji został zrealizowany.
Źródło:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu; 2019, 63, 10; 57-73
1899-3192
Pojawia się w:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badanie rozkładów właściwości elektrycznych i optycznych monokryształów GaP stosowanych w optyce podczerwieni
Investigation of spatial distributions of electrical and optical properties of GaP single crystals
Autorzy:
Strzelecka, S.
Hruban, A.
Jurkiewicz-Wegner, E.
Piersa, M.
Orłowski, W.
Mirowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/192034.pdf
Data publikacji:
2009
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Materiałów Elektronicznych
Tematy:
GaP
własności elektryczne
własności optyczne
optical properties
electrical properties
Opis:
Niedomieszkowane monokryształy GaP o niskiej koncentracji nośników n ≤ 2 × 10^16cm-³ stosowane są głównie na elementy optyczne pracujące w bliskiej podczerwieni w zakresie widmowym (1-8) μm oraz w dalekiej podczerwieni (100 - 200) μm. Elementy te mogą posiadać duże rozmiary Φ (2”-3”). Jednym z podstawowych wymagań dla monokryształów stosowanych na elementy optyczne jest duża jednorodność własności, których miernikiem może być transmitancja. Na wartość i jednorodność transmitancji mogą mieć wpływ takie czynniki jak poziom i rozkład koncentracji nośników prądu, gęstości dyslokacji i koncentracji centrów defektowych. W ramach obecnej pracy badano wpływ tych czynników. Stwierdzono, że istnieje jednoznaczna zależność transmitancji tylko od koncentracji nośników prądu. Empirycznie wyznaczono tę zależność dla zakresu koncentracji nośników n = 10^15 - 5× 10^16cm-³ przy długości fali λ = 3100 nm.
Undoped GaP crystals with low carrier concentration n ≤ 2 × 10^16cm-³ are mainly used on optic elements working in near infrared (1-8) um and far infrared (100 - 200) um wave range. These elements can be large Φ = (2”-3”). High homogeneity of the properties responsible for transmittance value is one of the fundamental requirement for GaP crystals used on optical elements. Value and distribution of carrier concentration, etch pits density and concentration defect centers can influence on value and homogeneity of transmittance. In the present work these factors were investigated. Distinct transmittance dependence on carrier concentration was only confirmed. This dependence was empirically determined in concentration range n = 10^15 - 5x10^16cm-³ at wavelength λ = 3100nm.
Źródło:
Materiały Elektroniczne; 2009, T. 37, nr 2, 2; 22-27
0209-0058
Pojawia się w:
Materiały Elektroniczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aerodynamics of articulated multilink trucks
Autorzy:
Andreihyk, A.
Kharytonchyk, S.
Kochetov, S.
Shmelev, A.
Powiązania:
https://bibliotekanauki.pl/articles/247722.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
truck
aerodynamic resistance
articulated truck
trailer-trailer gap
modelling
Opis:
Development of new generations of supersize heavy-duty highway trucks for cargoes transportation on long and super long distances between Europe, Asia and Far East is actual now. New trucks shall reduce amount of transport on roads and quantity of drivers, involved in the transportation, will raise economic efficiency and safety of transportations and reduce fuel consumption, CO2, and harmful emissions. Multilink trucks (number of trailed links is three and more and the total truck length is above 40 m) are to achieve designated purposes and thus are under the scope in the article. The advantages of multilink trucks are formed mainly by reducing the cost of power to overcome the aerodynamic resistance of each co-trailer unit in comparison with the head element. However, the airflow in every trailer-trailer gap has been not studied for articulated vehicles such as multilink highway trucks. This zone of the truck is characterized by a rather large length and height, and the condition of the air mass is influenced by airflow from the roof, side panels and area under the bottom of a truck links. A study of this task will help us to analyse aerodynamic losses mechanics in the trailer-trailer gap and to come to new effective and substantiated decision allowing power loss and thus fuel consumption reduction. The study lists the general calculation method evaluating the aerodynamic characteristics of the multilink truck on the base of numerical simulation of fluid dynamics using Flow Vision software. During calculation, there were determined speed distribution and power lines along the truck, the distribution of pressure on the truck surface, power and full drag coefficient. The results obtained allowed numerically evaluate the effect of the distance between the links on fuel consumption for multilink trucks and define the desired changes in their design.
Źródło:
Journal of KONES; 2018, 25, 3; 25-32
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wentyl Gilesa-Mościckiego
Giles-Moscicki’s valve
Autorzy:
Chrzan, Krystian Leonard
Powiązania:
https://bibliotekanauki.pl/articles/1857445.pdf
Data publikacji:
2021
Wydawca:
Wydawnictwo Druk-Art
Tematy:
przepięcie
ogranicznik przepięć
iskiernik
overvoltage
surge arrester
spark gap
Opis:
W artykule przedstawiono prace prof. Ignacego Mościckiego (prezydenta Polski w latach 1926–1939), których wynikiem było zbudowanie nowego typu ogranicznika przepięć. W literaturze technicznej jest on jednak znany tylko jako wentyl Gilesa od nazwiska dyrektora fabryki kondensatorów we Fryburgu. Po prawie 100 latach konstrukcję wentylu Gilesa-Mościckiego wykorzystano ponownie w ograniczniku przepięć MC 50-B.
The article presents the works of prof. Ignacy Mościcki (president of Poland in the years 1926–1939), which resulted in the construction of a new type of surge arrester. In technical literature, however, it is only known as the Giles valve, after the director of the capacitors factory in Fribourg. After almost 100 years, the Giles-Mościcki valve structure was reused in the surge protective device MC 50-B.
Źródło:
Napędy i Sterowanie; 2021, 23, 4; 69-71
1507-7764
Pojawia się w:
Napędy i Sterowanie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Gender Gap in Political Knowledge in Poland
Autorzy:
Kunovich, Robert M.
Kunovich, Sheri
Powiązania:
https://bibliotekanauki.pl/articles/1810815.pdf
Data publikacji:
2016-03-30
Wydawca:
Polskie Towarzystwo Socjologiczne
Tematy:
political knowledge
gender gap
political engagement
political interest
Polska
Opis:
This paper utilizes nationally representative survey data to examine the gender gap in political knowledge in Poland. Political knowledge was assessed by asking respondents to indicate whether each of twelve national political parties was currently in the ruling coalition. We use motivation, ability, and opportunity to explain political knowledge. We predict answering ‘don’t know’ as well as answering all questions correctly. Political interest, educational attainment, previous voting behavior, having children, and age predict ‘don’t know’ responses for men and women. Having access to cable or satellite TV appears to reduce ‘don’t know’ responses, but only for men. All else being equal, men and women are equally likely to answer ‘don’t know.’ Political interest, educational attainment, previous voting behavior, age, and self-esteem predict perfect scores for women and men. Religious attendance increases perfect scores, but only for women. The gender gap in perfect scores remains significant despite controls.
Źródło:
Polish Sociological Review; 2016, 193, 1; 33-48
1231-1413
2657-4276
Pojawia się w:
Polish Sociological Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of a Bandgap in the Ultrasonic Phononic Coating
Autorzy:
Garus, Sebastian
Sochacki, Wojciech
Garus, Justyna
Sandu, Andrei Victor
Powiązania:
https://bibliotekanauki.pl/articles/2049725.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
reflectance coating
mechanical waves
phononic crystal
band gap
optimization
Opis:
This work concerns the study of the coatings for the ultrasound frequency range as a quasi one-dimensional phononic crystal structure protecting a sea object against high resolution active sonar in the frequency range most commonly found for this type of equipment. The topology of the examined structure was optimized to obtain a band gap in the 2.2-2.3 MHz frequency band. For this purpose, a genetic algorithm was used, which allows for optimal distribution of individual elements of the ultrasound multilayer composite. By optimal distribution is meant to achieve a structure that will allow minimal reflectance in a given frequency range without height reflectance peaks with a small half width. Analysis of the wave propagation was made using the Transfer Matrix Method (TMM). As part of the research, 15 and 20-layer structures with reflectance at the level of 0.23% and 0.18%, respectively, were obtained. increasing the number of layers in the analyzed structures resulted in finding such a distribution in which a narrow band of low reflectance was obtained, such distributions could also be used as bandpass filters. The use of a genetic algorithm for designing allows to obtain modern coatings, the characteristics of which result from the structure.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 2; 537-542
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measuring the tax gap in the European economy
Autorzy:
Raczkowski, Konrad
Powiązania:
https://bibliotekanauki.pl/articles/522483.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Ekonomiczny w Katowicach
Tematy:
European economy
Methodology
Shadow economy
Tax gap
Tax revenues
Opis:
The objective of the paper is to reveal the methodology used to examine the tax gap and calculate the tax gap for all EU states over 2011-2014. The paper draws on the review of reference literature addressing the tax gap in the context of tax avoidance and tax evasion. The paper features the GDP size across countries so as to demonstrate the overall level of the shadow economy compared to the aggregate tax burden. Finally, for the first time, the calculations of the tax gap for all EU states over 2011-2014 were displayed.
Źródło:
Journal of Economics and Management; 2015, 21; 58-72
1732-1948
Pojawia się w:
Journal of Economics and Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on the EV charging load estimation and mode optimization methods
Autorzy:
Zhan, Zhiyan
Dong, Kailang
Pang, Xiaochen
Zhao, Hongfei
Wang, Aifang
Powiązania:
https://bibliotekanauki.pl/articles/141614.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
EVs
gap optimization
Latin hypercube sampling
Monte Carlo simulatino
Opis:
With the increasing number of electric vehicles (EVs), the disordered charging of a large number of EVs will have a large influence on the power grid. The problems of charging and discharging optimization management for EVs are studied in this paper. The distribution of characteristic quantities of charging behaviour such as the starting time and charging duration are analysed. The results show that charging distribution is in line with a logarithmic normal distribution. An EV charging behaviour model is established, and error calibration is carried out. The result shows that the error is within its permitted scope. The daily EV charge load is obtained by using the Latin hypercube Monte Carlo statistical method. Genetic particle swarm optimization (PSO) is proposed to optimize the proportion of AC 1, AC 2 and DC charging equipment, and the optimal solution can not only meet the needs of users but also reduce equipment investment and the EV peak valley difference, so the effectiveness of the method is verified.
Źródło:
Archives of Electrical Engineering; 2019, 68, 4; 831-842
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decomposition of gender wage gap in Poland using counterfactual distribution with sample selection
Autorzy:
Landmesser, Joanna Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/1193068.pdf
Data publikacji:
2019-08-30
Wydawca:
Główny Urząd Statystyczny
Tematy:
gender wage gap
sample selection
decomposition of income inequalities
Opis:
In the paper, we compare income distributions in Poland taking into account gender differences. The gender pay gap can only be partially explained by differences in men's and women's characteristics. The unexplained part of the gap is usually attributed to the wage discrimination. The objective of this study is to extend the Oaxaca-Blinder decomposition procedure to different quantile points along the income distribution. We use the RIF-regression method to describe differences between the incomes of men and women along the two distributions and to evaluate the strength of the influence of personal characteristics on the various parts of the income distributions. As the sample selection is a serious issue for the study, therefore our decomposition approach will be adjusted for sample selection problems. The results suggest not only differences in the income gap along the income distribution (in particular sticky floor and glass ceiling), but also differences in the contribution of selection effects to the pay gap at different quantiles. The analysis is based on data from the EU-SILC data for Poland in 2014.
Źródło:
Statistics in Transition new series; 2019, 20, 3; 171-186
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new problem of hydrodynamic lubrication with temperature and viscosity variations in gap height direction
Autorzy:
Wierzcholski, K.
Miszczak, A.
Powiązania:
https://bibliotekanauki.pl/articles/245652.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
liquid viscosity changes in thin gap height direction
temperature
adhesion or capillary forces variations in thin gap height direction new analytical solutions
Opis:
Numerous Authors of scientific papers occurring in hydrodynamic theory of slide bearing lubrication, up to now almost always had neglected the oil dynamic viscosity variations caused by temperature, adhesion forces, capillary forces, or hydrogen ion concentration across the film thickness by virtue of the statement of the constant temperature as well constant adhesion as capillary forces in the thin bearing gap height direction. In addition, simultaneously by virtue of boundary layer simplifications for energy equation and by virtue of new measurements performed in micro and nano- level follows that oil temperature gradients and its values differences and adhesion or capillary gradients of forces in bearing gap height directions are not negligible small. The contemporary hydrodynamic theory of lubrication for non-isothermal lubricant flow is unfortunately based on the assumption of constant viscosity values across the film thickness, despite abovementioned self-evident contradiction between the fact of constant viscosity and simultaneously temperature variations in gap height direction. Such problem was up to now not sufficient critical examined and explained in practical and theoretical sense. After Authors, knowledge by virtue of above problem the most scientific papers in the domain of non-isothermal and lamellar hydrodynamic slide bearing or biobearing lubrication were up to now not sufficient correctly solved. It denotes that the main hydrodynamic lubrication solutions presenting for example hydrodynamic pressure by the modified Reynolds equation and temperature by the energy conservation equation are not sufficiently correctly obtained and next not correctly solved. Therefore are assumed simultaneously the temperature T and oil dynamic viscosity variations in length, width and bearing gap- height directions. From this assumption follows, that the energy equation must be solved simultaneously with the equations of motion i.e. consequently with pressure equation where viscosity depends on temperature and temperature depends on the coordinate in gap height direction.
Źródło:
Journal of KONES; 2016, 23, 2; 423-430
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Klikać czy czytać? Pragmatyczna funkcja clickbaitów
To Click or to Read? The Pragmatic Function of Clickbaits
Autorzy:
Nowakowska Głuszak, Anna
Powiązania:
https://bibliotekanauki.pl/articles/27804805.pdf
Data publikacji:
2022
Wydawca:
Krakowskie Towarzystwo TERTIUM
Tematy:
clickbait
pragmatics
curiosity gap
tabloidization
pragmatyka
luka ciekawości
tabloidyzacja mediów
Opis:
Internet nie tylko zmienia język i sposób komunikowania się ludzi, ale również daje przestrzeń do powstawania nowych form i gatunków tekstowych. Ich rozwój determinują zwykle czynniki, które do tej pory, w tradycyjnej komunikacji ustnej czy pisemnej, miały (jeśli w ogóle) znaczenie drugo czy trzeciorzędne.  W konsekwencji, analiza szeroko rozumianej komunikacji w Internecie, zwłaszcza na poziomie pragmatycznym, wymaga od językoznawcy podejścia interdyscyplinarnego, uwzględniającego wiedzę językową, psychologiczną i technologiczną.  Pokazuje to doskonale przykład clikbaitów, czyli odnośników internetowych, których zadaniem jest przyciągnięcie uwagi odbiorcy i nakłonienie go do kliknięcia w hiperłącze. W niniejszym artykule staramy się opisać i wyjaśnić strategie komunikacyjne stosowane w clikbaitach, przyjmując jako punkt wyjścia badania z zakresu UX designu, głównie na temat nowego sposobu czytania na ekranie (tzw. F-shapped pattern)  oraz psychologiczną koncepcję luki ciekawości (Loewenstein, 1994). Omawiamy również zjawisko tabloidyzacji mediów internetowych oraz rosnący wpływ clikbaitów na prezentowane w nich treści. 
The Internet changes not only human language and communication behaviour but also allows new forms and text genres to appear. Their development is often determined by the factors which did not exist before or were insignificant for traditional oral and written discourse. Consequently, researching pragmatic aspects of computer-mediated communication requires an interdisciplinary approach that considers linguistic, psychological, and technological knowledge. This is the case of clickbait, i.e., content whose primary purpose is to attract attention and encourage visitors to click on a particular web page. This paper shows how it works in the Internet environment and explains the use of linguistic strategies in the context of UX design research and the psychological phenomenon of the curiosity gap (Loewenstein, 1994). It also considers the problem of tabloidization of the new media.
Źródło:
Półrocznik Językoznawczy Tertium; 2022, 7, 2; 170-183
2543-7844
Pojawia się w:
Półrocznik Językoznawczy Tertium
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Satellite ET-based irrigation performance : Strategies to increase rainfed crops production in the lower Baro watershed, Ethiopia
Autorzy:
Befikadu Deneke, Fiseha
Shetty, Amba
Fufa, Fekadu
Powiązania:
https://bibliotekanauki.pl/articles/27312629.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
crop water productivity
evapotranspiration
irrigation performance
lower Baro
yield gap
Opis:
Satellite-based irrigation performance is a valuable tool for improving yields in irrigated areas across the world and requires adequate land for long-term development. This study aimed to increase irrigation performance and yield gap variation of rainfed crops using the database of FAO’s Water Productivity Open Access Portal (WaPOR) and the Global Yield Gap Atlas. The evapotranspiration (ET) performance of irrigation is expressed in equity (CV of ET), reliability, adequacy (CV of ET), and water productivity (kg∙m-3). The rainfed crops are interpreted in terms of metric tonnes/ha. Specifically, 20,325 km2 of suitable pastoral land across eight sub-classes was converted to rainfed rice, sugarcane, maize, and vegetable crops. Results showed that the R2 value was 0.97 at Baro Itang and -0.99 at Sor Metu, with the Baro Gambella sub-catchment having the largest yield gap of 4.435.2, 8.870.4, and 10.080∙106 kg when the yield increased by 1/3, 2/3, and 3/4. On the other hand, Gumero Gore had the smallest yield gap of 10,690, 29,700, and 33,750 kg, respectively. The management regime was 2.87, 0.87, and 0.35 kg∙m-3 for growers in the estate, farmer association, and individual, respectively. The study concludes that no single irrigation technique can be considered the best, and a thorough analysis of spatiotemporal variation of the irrigation performance indicators and the yield gap in the water-scarce lower Baro watershed is required.
Źródło:
Journal of Water and Land Development; 2023, 58; 53--61
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Raschet i vybor perekhodnykh posadok
Calculation and selection transient landings
Autorzy:
Ivanov, G.
Polyansky, P.
Powiązania:
https://bibliotekanauki.pl/articles/77960.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
calculation
tightness
gap
tension
normal distribution
fit tolerance
transient landing
Opis:
The calculation and selection of transitional planting is important for fixed but detachable connections and to more accurately centered detail. The nature of landings determined by the probability of occurrence of these tightness and gaps. Calculations of the probability tightness and gaps based on the normal distribution of sizes of parts in manufacturing. Distribution of tightness and gaps in this case is also subject to the normal law, and the probability of their occurrence is determined by the integral function of probability. The probabilistic calculation of the mean value and dispersion of the gap or tension. How to configure, and in the processing of parts and machine operator adjuster stick closer to secure borders. For the hole is the smallest, and the shaft - the largest size limits. The result is that there is some asymmetry in the distribution of deviations of sizes.
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2013, 15, 2
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Obosnovanie parametrov zagruzochnogo ustrojjstva rotorno-centobezhnojj melnicy dlja furazhnogo zerna
Making parameters bood device rotor-centrifugal mill for feed grain
Autorzy:
Rajjkhman, D.
Simonov, A.
Powiązania:
https://bibliotekanauki.pl/articles/76669.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
rotary-centrifugal mill
pipe
valve
ring slit
annular gap
grain
Opis:
The description of the rotary-centrifugal mill with feed grains through the annular gap, coaxial rotor. The effect of the boot fitting and valves to supply grain. Introduced the concept of the specific feed grains per unit area of the annular gap.
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2013, 15, 5
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
E-participation in the Decision-Making Process in Post-Communist Countries
Autorzy:
Džatková, Veronika
Powiązania:
https://bibliotekanauki.pl/articles/680898.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
civil society, representative democracy, political participation, e-participation, participatory gap
Opis:
Besides other aspects, one of the fundamental conditions of the modern political system is active and powerful civil society. Representatives of civil society and their increasing influence provide the background for increasing political participation and civic activism with the aim to make decision-making processes more effectual and having an impact on public policy actors. In that context, the objective of the article is to pay particular attention to one of the forms of participation, specifically using a comparative method to theoretically analyse the perspectives and limits of e-participation. The paper presumes the inevitable role of e-participation in the current modernisation of public administration processes which could overcome obstacles related to the participatory gap in post-communist countries.
Źródło:
Rocznik Administracji Publicznej; 2017, 3
2449-7800
Pojawia się w:
Rocznik Administracji Publicznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reducing the Vat Gap in Poland
Autorzy:
Simińska-Domańska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/2034613.pdf
Data publikacji:
2019-07-31
Wydawca:
Wyższa Szkoła Finansów i Prawa w Bielsku-Białej
Tematy:
Value Added Tax
tax audits
frauds
reducing the VAT gap
Opis:
The main goal of the paper is to study the effectiveness of legal changes introduced in 2016 which were aimed at reduction of the VAT gap in Poland. The study consists of a normative, legal and quantitative analysis of data provided by the Ministry of Finance and shows the financial scale of VAT gap reduction. The thesis put forward in the paper assumes that the changes in law introduced in 2016 made it possible to effectively reduce the VAT gap in Poland and to tighten the system of VAT collection. The author managed to confirm the thesis in the course of the conducted research. The paper also emphasizes that the Polish tax on goods and services is well harmonized with its EU counterpart. Also the activities aimed at combating the phenomenon of VAT fraud seem to have brought positive results. At the same time, the central invoice register which is due to be implemented in July 2019, is expected to be a significant improvement.
Źródło:
Zeszyty Naukowe Wyższej Szkoły Finansów i Prawa w Bielsku-Białej; 2019, 2; 39-44
2084-1809
Pojawia się w:
Zeszyty Naukowe Wyższej Szkoły Finansów i Prawa w Bielsku-Białej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The energy efficiency gap in Turkish maritime transportation
Autorzy:
Konur, Olgun
Bayraktar, Murat
Pamik, Murat
Kuleyin, Barış
Nuran, Mustafa
Powiązania:
https://bibliotekanauki.pl/articles/962694.pdf
Data publikacji:
2019
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
energy efficiency gap
maritime transportation
energy efficiency technologies
carbon emission
Opis:
The Turkish Merchant Shipping Industry has recently witnessed an increasing awareness of the importance to minimize environmental pollution and fuel oil consumption. Together with certain non-governmental organizations and media concerns about environmental protection, the International Maritime Organization (IMO) has been strict on controlling undesirable effects on the environment and, consequently, forcing shipping companies to minimize their emissions. Besides, today’s highly advanced technology companies over the world have developed various innovative systems that can be utilized to minimize carbon emission, thus giving assurance to relevant investors that their investments are most likely to turn out well with a considerable financial gain in the short or long term. Despite all such favorable developments, in a general look, shipping companies seem reluctant in making use of technologies providing efficiency in energy consumption. This reluctance has eventually brought about the term “Energy Efficiency Gap”. This research conducts a questionnaire, created by Acciaro et al. [1], among the shipping companies in Turkey. 20 respondent companies, who represent 26 percent of the Turkish owned merchant marine fleet of over 1000 gross tonnage in terms of deadweight cargo capacity, participated in the research. The Pearson correlation analysis was used, and interpretations were made according to the obtained statistical values. The aim of the research was to identify reasons and points restraining the use of new technologies regarding energy efficiency, as well as to develop proposals for the innovators in this field about how to overcome this handicap concerning technical and managerial aspects of gaining energy efficiency.
Źródło:
Polish Maritime Research; 2019, 3; 98-106
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warunki wilgotnościowe powietrza na zrębie zupełnym i gnieździe
Air humidity on the clear-cut and the gap
Autorzy:
Chojnacka-Ożga, L.
Ożga, W.
Andrzejczyk, T.
Powiązania:
https://bibliotekanauki.pl/articles/979332.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
clear−cut
gap
vapour pressure
relative humidity
vapour pressure deficit
Opis:
The aim of the study was to determine the spatial variation of vapour pressure (e), relative humidity (f) and vapour pressure deficit (Δ) on the clear−cut and gap as well as to compare the spatial distribution of air humidity conditions on both areas. The research was carried out in Rogów Forest Experimental Station (51.827023°N, 19.922315°E) on a clear−cut with a width of 60 m and on a gap of an ellipsoid shape (40×70 m). The measurements were carried out in two series: spring−summer, i.e. in the period when the height of the sun during the day conditioned inflow of direct solar radiation to any surface (May−August 2006), and autumn, i.e. when direct radiation was limited by neighbouring stands (October−November 2006). We found the modest spatial diversification of vapour pressure that, on average, amounted to 0.4 and 0.2 hPa in the clear−cut and gap, respectively, in spring−summer period as well as 0.3 and 0.7 hPa, respectively, in the autumn. The major impact of the clear−cut and gap location was marked in relative humidity and humidity deficit. Differences in relative humidity on the clear−cut amounted averagely to 3.7 and on the gap 12.7%, whereas the humidity deficit equalled 0.3 and 5.4 hPa, respectively. Particularly large diversification of relativity humidity and vapour pressure deficit was in spring−summer period in the situation of heat waves. In that weather conditions in sun−filled clear−cut and gap parts, the relativity humidity fall to about 17%, whereas vapour pressure deficit increased to about 60 hPa. In the same clear−cut and gap parts the occurrence of dry days was more frequent that in other places. It was noticed that in the positions located in sun−filled clear−cut and gap parts (z4, g3), the diurnal vapour pressure course was very similar to the one observed in the forest, whereas the course of the relativity humidity and vapour pressure deficit was significantly different. That is mainly involved with the extreme thermal conditions in this parts of the studied areas. The least beneficial humidity conditions for plants growth occurred in the north−east parts of clear−cut and gap, that’s why it necessary to take particular note of these locations when undertaking the silvicultural treatments.
Źródło:
Sylwan; 2020, 164, 07; 594-603
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis of High-Energy Polymer : Glycidyl Azide Polymer (GAP)
Synteza wysokoenergetycznego polimeru : poliazydku glicydylu (GAP)
Autorzy:
Kasztankiewicz, A.
Kogut, A.
Jankiewicz, M.
Maksimowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/403656.pdf
Data publikacji:
2018
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
high energy materials
energetic binder
GAP
materiały wysokoenergetyczne
energetyczne lepiszcza
Opis:
Glycidyl Azide Polymer (glycidyl polyazide) (GAP) is one of the best known energetic binders, applicable as a component increasing a calorific value of rocket propellants. In this article, a synthesis of GAP is described allowing to obtain a polymer of different molecular masses. The change of a molecular mass can influence on properties of the obtained compounds. The synthesis was carried out according to an active monomer mechanism. The obtained products were characterized using such methods as FTIR, GPC, MALDI-ToF, TG, and NMR.
Poliazydek glicydylu (GAP) jest jednym z najbardziej znanych lepiszczy energetycznych, znajdujących zastosowanie jako składnik zwiększający kaloryczność paliw rakietowych. W artykule opisano syntezę GAP-u pozwalającą na uzyskanie polimeru o różnych masach cząsteczkowych. Zmiana masy cząsteczkowej może wpływać na właściwości otrzymanych związków. Syntezę prowadzono według mechanizmu aktywnego monomeru. Otrzymane produkty scharakteryzowano z wykorzystaniem takich technik, jak: FTIR, GPC, MALDI-ToF, TG i NMR.
Źródło:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2018, 9, 2 (32); 59-72
2081-5891
Pojawia się w:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Flow of liquid in flat gaps of the satellite motor working mechanism
Autorzy:
Sliwiński, P.
Powiązania:
https://bibliotekanauki.pl/articles/260520.pdf
Data publikacji:
2014
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
flow in flat gap
satellite motor
HFA-E emulsion
oil
Opis:
The article describes the methodology and results of investigations of the flow of oil and HFA-E emulsion in flat gaps of the working mechanism of a satellite motor. The flow of liquid in those gaps is turbulent and not fully developed. The article presents two methods of modelling this flow. Method I makes use of the Darcy-Weisbach formula, while Method II bases on the assumption that in the variable-length gaps the flow is turbulent in the area where the length is the smallest and laminar where the length is the largest. Consequently, the flow in such gaps can be modelled as the sum of laminar and turbulent flows. The results obtained in the experiment have made the basis for calculating relevant coefficients and assessing the proportion of turbulence in the flow modelled using both methods.
Źródło:
Polish Maritime Research; 2014, 2; 50-57
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Costs incurred by the mother as a result of childbirth and upbringing − changes in the career path
Koszty poniesione przez matkę w wyniku urodzenia i wychowania dziecka − zmiany w ścieżce kariery zawodowej
Autorzy:
Jędrzychowska, Anna
Poprawska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/584736.pdf
Data publikacji:
2020
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
motherhood gap
personal injury
insurance
luka dochodowa
szkody osobowe
ubezpieczenia
Opis:
The article is a part of research on the financial consequences of household members’ loss of health and life, in this case − a child. The amount of this loss can be estimated using, among others, the cost approach, including expenses and lost benefits associated with raising a child. The article analyzes lost benefits – the financial consequences that the mother incurs mainly due to birth and childcare, and which are associated with changes in career development. Calculations are presented for selected scenarios for the career path and a model for assessing the income gap between women: mother and a childless one has been proposed. It should be remembered that the child appears most often at the beginning of the mother’s professional career. This is the time of the fastest wage increase. Therefore, given the non-linear trend of wage increases with seniority (close to exponential), the ‘severity’ of the child’s appearance in the initial period of work is significant.
Artykuł jest kontynuacją badań dotyczących finansowych konsekwencji utraty zdrowia i życia przez członków gospodarstw domowych, w tym przypadku przez dziecko. Wysokość straty może być szacowana m.in. z użyciem podejścia kosztowego – rodzice ponoszą koszty (wydatki oraz utracone korzyści) związane z wychowaniem dziecka. W artykule analizowane są utracone korzyści, ponoszone przez matkę w związku z faktem urodzenia i opieki nad dzieckiem, które są związane ze zmianami w jej karierze zawodowej. Zaprezentowano kalkulacje dla wybranych scenariuszy rozwoju kariery zawodowej i zaproponowano model oceny luki dochodowej zdefiniowanej jako różnica między dochodami kobiety bezdzietnej i matki. Należy pamiętać, że dziecko pojawia się najczęściej na początku kariery zawodowej kobiety, gdy dynamika płac jest najwyższa (trend wzrostu płac wraz ze stażem pracy zbliżony do wykładniczego), w związku z czym konsekwencje wynikające z pojawienia się dziecka w początkowym okresie pracy zawodowej matki są znaczne.
Źródło:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu; 2020, 64, 1; 66-75
1899-3192
Pojawia się w:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conditions And Prospects For Development Of Innovation In EU Economies In Light Of The Europe 2020 Strategy
Autorzy:
Dworak, Edyta
Kasperkiewicz, Witold
Powiązania:
https://bibliotekanauki.pl/articles/632674.pdf
Data publikacji:
2013-12-01
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
invention
innovation
innovation gap
knowledge - based economy
R+D activity
Opis:
The purpose of this paper is to explain the essence of the Europe 2020 Strategy, with particular emphasis on development projects in the field of innovation;to assess the level of innovation in the EU economies in comparison to the U.S., Japan and South Korea, and to describe the conditions for the development of the EU economic area in light of the Strategy program objectives. The paper consists of three parts. The first part outlines the essence and objectives of the Europe 2020 Strategy. The second part contains an analysis of the level of innovativeness of the EU economies compared with U.S., Japan and South Korea. The third part focuses on the conditions and prospects for the development of innovative economies in the European Union
Źródło:
Comparative Economic Research. Central and Eastern Europe; 2013, 16, 4; 39-55
1508-2008
2082-6737
Pojawia się w:
Comparative Economic Research. Central and Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł

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