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Wyświetlanie 1-15 z 57
Tytuł:
Effectiveness of selected disinfectants on Malassezia pachydermatis
Autorzy:
Vyrostkova, J.
Conkova, E.
Laciakova, A.
Pipova, M.
Powiązania:
https://bibliotekanauki.pl/articles/32522.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
effectiveness
disinfectant
Malassezia pachydermatis
disinfection
Opis:
The present study investigated the effectiveness of three different disinfectants: preparation H1 (two-component preparation based on hydrogen peroxide); Pedox (multi-component preparation based on peroxyacetic acid) and Savo hypochlorite preparation) against Malassezia pachydermatis. The antifungal activity of disinfectants was tested by quantitative suspension method according to STN EN 1650. The results confirmed 100% effectiveness of these disinfectants at all concentrations and exposure times tested.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of high temperature innovative geometry fixed ceramic matrix regenerators used in glass furnaces
Autorzy:
Wołkowycki, G.
Powiązania:
https://bibliotekanauki.pl/articles/240367.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
effectiveness matrix regenerators
experimental results on effectiveness of regenerators
efektywność
generator obrotowy
wyniki eksperymentalne
Opis:
The paper presents the effectiveness of waste heat recovery regenerators equipped with innovative ceramic matrix forming an integral part of a real glass furnace. The paper full description of the regenerators’ matrix structure with its dimensions, thermo-physical properties and operating parameters is included experimentally determined was the effectiveness of the regenerators has been descrbed using the obtained experimental data such as the operating temperature, gas flows as well as the gases generated during the liquid glass manufacturing process. The effectiveness values refer not only to the heating cycle when the regenerator matrix is heated by combustion gases but also to the cooling cycle in which the matrix is cooled as a result of changes in the direction of the flowing gas. On the basis of the determined effectiveness values for both cycles and measurement uncertainties it was possible, to calculate the weighted average efficiency for each of the regenerators.
Źródło:
Archives of Thermodynamics; 2016, 37, 1; 113-126
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Between empathy and psychopathy – moral and ineffective or effective and immoral
Autorzy:
Pastwa-Wojciechowska, Beata
Kaźmierczak, Maria
Powiązania:
https://bibliotekanauki.pl/articles/703725.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
empathy
psychopathy
effectiveness
morality
disorders
Opis:
Empathy and psychopathy seem to be two distant extremes, which only differ, with nothing similar. Therefore, the question that seems to be surprising is whether such a theoretical perspective is justified. Empathy exerts significant influence on social relationships and is associated with moral development, whereas psychopathy seems to be an opposite phenomenon, as it is associated with the lack of deep interpersonal bonds and the violation of legal norms. As studies from various disciplines and scientific areas indicate, such concepts as behavioral effectiveness, morality or altruism might help explain the complex nature of the interrelationship between psychopathy and empathy. The authors tried to explore and describe the complexity of the two presented concepts in the light of the conducted research, and the resulting theoretical and empirical implications.
Źródło:
Nauka; 2018, 1
1231-8515
Pojawia się w:
Nauka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Challenges faced in modern quality inspection
Autorzy:
Borkowski, S.
Knop, K.
Powiązania:
https://bibliotekanauki.pl/articles/407221.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
control
quality inspection
effectiveness
improvement
challenges
Opis:
Point of view, preferences and priorities of quality inspection in modern production systems have changed. Quality inspection in its activities is no longer limited only to the documentation of the past, nor is it seen solely as a tool for the detection of nonconformity. Nowadays, the most important quality inspection function is prevention, whose most important goal is to make it before nonconformity. What is expected from modern quality inspection is that it actively improves the production and quality as well as reduces the costs. The aim of the article is to present requirements, guidelines and challenges in the organization of modern quality inspection in a manufacturing company. The role of quality inspection in the classical model and modern model of quality improvement was presented. Determinants of effective quality inspection were presented, as well. The quality inspection methods that best fit into the paradigm of modern quality inspection, that is source inspection, together with visual management were pointed out.
Źródło:
Management and Production Engineering Review; 2016, 7, 3; 11-22
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effectiveness of computer-assisted cognitive rehabilitation in brain-damaged patients
Autorzy:
Łojek, Emilia
Bolewska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/430264.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
neurocognitive rehabilitation
computer-assisted therapy
effectiveness
Opis:
This study examined the effects of computer-assisted cognitive rehabilitation in a group of 16 brain-damaged patients. Therapeutic effectiveness was assessed by improvement on computer tasks, the results of neuropsychological tests and quality of life ratings. Participants suffered from mild to moderate attention and memory problems or aphasia. The procedure involved baseline assessment (pretest), a 15-week course of therapy conducted twice a week (30 hours in total) and posttest. Neuropsychological tests assessing attention, memory and language problems and quality of life ratings were administered twice: in pre- and posttests. Twelve healthy controls were also examined twice (with a 15-week interval) using the same battery of neuropsychological tests. The RehaCom program and the Polish computer therapy program for aphasics called Afa-System were used for rehabilitation. The computer-assisted rehabilitation tasks were selected individually for each patient. The results showed signifi cant improvement on computer-assisted tasks in all braindamaged subjects. However, none or very little improvement was observed on neuropsychological tests and quality of life ratings. The results of the study confi rm the importance of using different types of measures to estimate the effectiveness of computer-assisted neuropsychological rehabilitation as well as the necessity of applying various kinds of therapy to improve cognitive, emotional and social functioning in brain-damaged patients.
Źródło:
Polish Psychological Bulletin; 2013, 44, 1; 31-39
0079-2993
Pojawia się w:
Polish Psychological Bulletin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aggregate Matching Function. The Case of Poland
Autorzy:
Roszkowska, Sylwia
Powiązania:
https://bibliotekanauki.pl/articles/483241.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
matching function
matching effectiveness
unemployment duration
Opis:
The main goal of this paper is to analyze the matching function in the Polish labour market in 1994-2008. Matching function is the relationship between outflows from unemployment to employment and the number of unemployed persons and vacancies as well as other variables which affect the efficiency of the matching process directly or indirectly. Such matching function in its augmented form is estimated here for Poland with the use of data from register of unemployed persons. The results indicate that there is a statistically stronger impact of the unemployed than vacancies on new hires. Furthermore, the institutional conditions of the labour market, the structure of the unemployed and the participants of active labour market programs (ALMP) play a role in the matching process.
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2009, 1, 2; 157-177
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving the Effectiveness of Maximum Score Estimators for Binary Regression Models
Autorzy:
Owczarczuk, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2076516.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
maximum score estimation
Monte Carlo experiments
effectiveness
Opis:
Maximum score estimation is a class of semiparametric methods for the coefficients of regression models. Estimates are obtained by the maximization of the special function, called the score. In case of binary regression models it is the fraction of correctly classified observations. The aim of this article is to propose a modification to the score function. The modification allows to obtain smaller variances of estimators than the standard maximum score method without impacting other properties like consistency. The study consists of extensive Monte Carlo experiments.
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2015, 4; 205-217
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the correctness of determination of the effectiveness of maintenance service actions
Autorzy:
Daniewski, K.
Kosicka, E.
Mazurkiewicz, D.
Powiązania:
https://bibliotekanauki.pl/articles/406994.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
MTTF
MTBF
MTTR
OEE
maintenance services effectiveness
Opis:
This paper reports the results of an analysis of indicators describing the effectiveness of actions taken and repairs made by the maintenance services in a food industry company which had implemented a new manufacturing execution system (MES) 10 months prior to the study. The application of the above effectiveness indicators plays a significant role in the rationalization of functioning of maintenance services. Therefore, it is vital that they are calculated correctly and interpreted in a way that has a positive effect on the organization of maintenance works. The paper investigates four effectiveness indicators employed by the maintenance services of the company in question, i.e., mean time to failure (MTTF), mean time between failures (MTBF), mean time to repair (MTTR) and overall equipment effectiveness (OEE). The objective of the analysis was to verify the correctness of determination of the above indicators in the analysed company. In addition, the study was to determine whether the use of correctly determined indicators and results interpretation could lead to a higher effectiveness of the actions taken by the maintenance services department. Moreover, the paper presents a diagnosis of problems connected with incorrect determination and visualization of the above-mentioned indicators in the analysed company.
Źródło:
Management and Production Engineering Review; 2018, 9, 2; 20-25
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the effectiveness of different herbicides on weed invasion in the fields of triticale
Autorzy:
Ziveh, P.S.
Mahdavi, V.
Powiązania:
https://bibliotekanauki.pl/articles/65804.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
effectiveness
herbicide
weed
plant invasion
field
triticale
Opis:
One of the factors limiting crop growth is weeds. The weeds lead to a reduced performance of the crops. Chemical control methods are considered appropriate for controlling weeds. Therefore, in the fight to control weeds in triticale, the performance of the dual-purpose herbicide sulfosulfuron(Apirus®), mesosulfuron + idosulfuron(Atlantis®), metsulfuron methyl+sulfosulfuron(Total®) with surfactant and isoproton + diflufenican(Panther®) from the sulfonylurea group, and narrow leaf herbicides clodinafobpropargyl( Topik®), pinoxaden(New Axial®), diclofop-methyl(Iloxan®), pinoxaden + clodinafob-propagyl (Traxos ®), fenoxaprop-pethyl + mefen-pyper-d-ethyl(PumaSuper®), tralkoksidim(Grasb®) with 1 liter oil, flam-prop-m-isopropyl(Suffix BW®), and control treatment without herbicides were evaluated. The test was carried out in a randomized complete block design with four replications. Spraying was carried out using a back sprayer. For evaluation of ocular damage, the European Weed Research Council (EWRC) standard method was used. According to the performed studies, the narrow leaves of wild oat and barnyard grass were the dominant weeds. Results showed that all herbicide, except the herbicide tralkoksidim, were effective in weed control. The triticale yield was maintained with the use of these herbicides and none of herbicide had an adverse effect on the crop. In the first weeks of herbicide use, the triticale leaves appeared pale but this problem resolved over time. It seems that the herbicides discussed in this paper can be used on the triticale plant.
Źródło:
Journal of Plant Protection Research; 2012, 52, 4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Availability analysis of selected mining machinery
Autorzy:
Brodny, J.
Alszer, S.
Krystek, J.
Tutak, M.
Powiązania:
https://bibliotekanauki.pl/articles/230103.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
OEE model
TPM strategy
effectiveness
mining machines
Opis:
Underground extraction of coal is characterized by high variability of mining and geological conditions in which it is conducted. Despite ever more effective methods and tools, used to identify the factors influencing this process, mining machinery, used in mining underground, work in difficult and not always foreseeable conditions, which means that these machines should be very universal and reliable. Additionally, a big competition, occurring on the coal market, causes that it is necessary to take action in order to reduce the cost of its production, e.g. by increasing the efficiency of utilization machines. To meet this objective it should be pro-ceed with analysis presented in this paper. The analysis concerns to availability of utilization selected mining machinery, conducted using the model of OEE, which is a tool for quantitative estimate strategy TPM. In this article we considered the machines being part of the mechanized longwall complex and the basis of analysis was the data recording by the industrial automation system. Using this data set we evaluated the availability of studied machines and the structure of registered breaks in their work. The results should be an important source of information for maintenance staff and management of mining plants, needed to improve the economic efficiency of underground mining.
Źródło:
Archives of Control Sciences; 2017, 27, 2; 197-209
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metrological Properties of the Test Setup for Determination Shielding Effectiveness of the Industrial Cable Connectors
Autorzy:
Kopka, R.
Tarczyński, W.
Pluta, S.
Powiązania:
https://bibliotekanauki.pl/articles/226200.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
shielding effectiveness
variance analysis
repeatability
reproducibility
industrial connectors
Opis:
The paper presents results related to assessment of the repeatability and reproducibility of the measurement test setup for determination the relative value of the shielding effectiveness coefficient of the industrial connectors. The construction of the proposed test setup, the measurement method and the procedure for the analysis of measurement results were described. To determine the value of the repeatability and reproducibility coefficient, the two–way analysis of variance was used, which additionally allows for an assessment of the influence of individual sources of variance. The measurements and their analysis were conducted for several frequencies in the range up to 1 GHz. Additionally, the expanded measurement uncertainty, including the test setup and instruments uncertainty was estimated.
Źródło:
International Journal of Electronics and Telecommunications; 2017, 63, 1; 11-18
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza efektywności energetycznej i ekonomicznej elektrociepłowni gazowo-parowej zintegrowanej ze zgazowaniem biomasy
Energy and economic effectiveness analysis of gas-steam combined heat and power plant integrated with biomass gasification
Autorzy:
Zaporowski, B.
Powiązania:
https://bibliotekanauki.pl/articles/172913.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
elektrociepłownia gazowo-parowa
zgazowanie biomasy
efektywność energetyczna
efektywność ekonomiczna
gas-steam power plant
biomass gasification
energy effectiveness
economic effectiveness
Opis:
W artykule jest przedstawiona analiza efektywności energetycznej i ekonomicznej elektrociepłowni gazowo-parowej zintegrowanej ze zgazowaniem biomasy. W pierwszej części pracy zostały wyznaczone następujące wielkości charakteryzujące efektywność energetyczną procesu zgazowania biomasy: skład wytwarzanego gazu, wartość współczynnika nadmiaru czynnika zgazowującego, zużycie czynnika zgazowującego na 1 kg biomasy, objętość gazu uzyskiwana z 1 kg biomasy, wartość opałowa wytwarzanego gazu oraz sprawność chemiczna i energetyczna procesu zgazowania. W drugiej części została wykonana analiza efektywności energetycznej ciepłowniczego bloku gazowo-parowego z dwuciśnieniowym kotłem odzysknicowym i upustowo-kondensacyjną turbiną parową, zintegrowanego ze zgazowaniem biomasy. W trzeciej części zostały wyznaczone następujące wielkości charakteryzujące efektywność ekonomiczną analizowanego bloku ciepłowniczego: wielkość bieżąca netto, wewnętrzna stopa zwrotu oraz jednostkowe, zdyskontowane na rok 2012, koszty wytwarzania energii elektrycznej.
The paper presents the energy and economic effectiveness analysis of gas-steam combined heat and power (CHP) plant integrated with biomass gasification. In the first part of the paper there have been determined the following quantities characterizing the energy effectiveness of biomass gasification process: composition of gas, gasifying agent excess ratio, gasifying agent consumption per 1 kg of biomass, volume of gas obtained from 1 kg of biomass, lower heating value of gas and chemical and energy efficiencies of biomass gasification process. In the second part of the paper there has been made the analysis of energy effectiveness of gas-steam CHP block integrated with biomass gasification with two-pressure heat recovery steam generator (HRSG) and extraction condensing steam turbine. In the third part of the paper there have been determined the following quantities characterizing the economic effectiveness of the analyzed CHP block: net present value (NPV), internal rate of return (IRR) and unitary, discounted of 2012 year, electricity generation costs.
Źródło:
Archiwum Energetyki; 2012, 42, 2; s. 121-130
0066-684X
Pojawia się w:
Archiwum Energetyki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurement of Special Shielding Materials at S and C Band Using Improved Free-Space Transmission Technique
Autorzy:
Dvurechenskaya, N.
Zieliński, R. J.
Powiązania:
https://bibliotekanauki.pl/articles/226270.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nonwoven
fabric
shielding effectiveness
freespace measurements
surface resistivity
Opis:
In this paper we discuss state of the art in the field of shielding materials investigation. Two types of newly manufactured shielding materials (nonwoven and fabric) were measured using improved free-space transmission technique at 2-5 GHz depending on electromagnetic wave (EM) polarization and antenna to specimen distance. Results of shielding effectiveness (SE) evaluation based on measured complex transmission coefficients (S21) were presented and compared with SE measured using coaxial transmission line technique. Also results of surface resistance measurements with the four-probe technique for the test materials are shown.
Źródło:
International Journal of Electronics and Telecommunications; 2011, 57, 3; 329-334
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Innovative method for heat transfer enhancement through shell and coil side fluid flow in shell and helical coil heat exchanger
Autorzy:
Kumar, Rajesh
Chandra, Prakash
-, Prabhansu
Powiązania:
https://bibliotekanauki.pl/articles/949948.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
overall heat transfer coefficient
effectiveness
helical coil
pressure drop
Opis:
The effect of shell side and coil side volume flow rate on overall heat transfer coefficient, effectiveness, pressure drop and exergy loss of shell and helical coil heat exchanger were studied experimentally under steady state conditions. The working fluid, i.e., water was allowed to flow at three different flow rates of 1, 2, and 3 l/min on shell side (cold water) and at 1, 1.5, 2, 2.5, and 3 l/min on coil side (hot water) for each shell side flow rate at the temperatures of 298±0.4 K and 323±0.4 K, respectively. The results found that the overall heat transfer coefficient increased with increasing both shell side and coil side volume flow rates. The inner Nusselt number significantly increased with the coil side Dean number.
Źródło:
Archives of Thermodynamics; 2020, 41, 2; 239-256
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Organizational effectiveness of Polish enterprises in the context of changeability and unfriendliness of an environment
Autorzy:
Chudziński, Paweł
Cyfert, Szymon
Powiązania:
https://bibliotekanauki.pl/articles/406911.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
organisation’s environment
environment changeability
environment friendliness
organizational effectiveness
Opis:
The dynamics of the processes taking place in an environment, which is rendered in the altered perception of the character of this environment, induces a need to find answers to the following questions: (1) How do managers perceive an environment in the dimensions of stability/ changeability and friendliness/unfriendliness? (2) Is there a correlation between the stability/changeability and friendliness/unfriendliness of an environment, i.e. if an environment is more stable, is it perceived as more friendly, and if an environment is more changeable is it perceived as unfriendly? (3) Does environmental stability/changeability as well as friendliness/unfriendliness exert any influence on organizational effectiveness? In an attempt to answer the above quoted questions, the article’s objective has been defined as a discussion on the interdependencies perceived by managers between an environment’s dimensions of stability/changeability and friendliness/unfriendliness (analysed in terms of institutional categories) and the organizational effectiveness of Polish enterprises. The managers evaluated the legal environment as the least stable. In their opinion, that milieu was also more intimidating than friendly. Concurrently, a technological environment was perceived by the respondents as the most stable and favourable. The results of the effected research allow forming a conclusion concerning the existing correlation between the friendliness and stability of particular categories of an environment, at the same time pointing out to the occurrence of correlations between stability/changeability and friendliness/unfriendliness of some categories of an environment and the organizational effectiveness of the examined enterprises.
Źródło:
Management and Production Engineering Review; 2019, 10, 1; 105-115
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 57

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