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Wyszukujesz frazę "efficiency of method" wg kryterium: Temat


Tytuł:
Division of methods for counting helminths’ eggs and the problem of efficiency of these methods
Autorzy:
Jaromin-Gleń, Katarzyna
Kłapeć, Teresa
Łagód, Grzegorz
Karamon, Jacek
Malicki, Jacek
Skowrońska, Agata
Bieganowski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/988990.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
helminths’ eggs
parasitological methods
sewage sludge
biosolid matrices
efficiency of method
Opis:
From the sanitary and epidemiological aspects, information concerning the developmental forms of intestinal parasites, especially the eggs of helminths present in our environment in: water, soil, sandpits, sewage sludge, crops watered with wastewater are very important. The methods described in the relevant literature may be classified in various ways, primarily according to the methodology of the preparation of samples from environmental matrices prepared for analysis, and the sole methods of counting and chambers/instruments used for this purpose. In addition, there is a possibility to perform the classification of the research methods analyzed from the aspect of the method and time of identification of the individuals counted, or the necessity for staining them. Standard methods for identification of helminths’ eggs from environmental matrices are usually characterized by low efficiency, i.e. from 30% to approximately 80%. The efficiency of the method applied may be measured in a dual way, either by using the method of internal standard or the ‘Split/Spike’ method. While measuring simultaneously in an examined object the efficiency of the method and the number of eggs, the ‘actual’ number of eggs may be calculated by multiplying the obtained value of the discovered eggs of helminths by inverse efficiency.
Źródło:
Annals of Agricultural and Environmental Medicine; 2017, 24, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrostatic drives as safe and energy saving machines. The drive investigation method compatible with the diagram of power increase opposite to the direction of power flow
Autorzy:
Paszota, Z.
Powiązania:
https://bibliotekanauki.pl/articles/259311.pdf
Data publikacji:
2011
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
hydrostatic drive and control
evaluation of energy losses
method of energy efficiency investigation
search for the energy saving solutions
Opis:
Designers and manufacturers of hydrostatic drives have not a tool for precise determination of their energy efficiency, changing in a wide range in the driven device operating field, i.e. in the full range of the hydraulic motor speed and load and the working medium viscosity. This applies both to determining of losses and energy efficiency of displacement machines (pump and hydraulic motor) used in the drive system, and to losses and energy efficiency of the motor control system structure. A method is proposed compatible with the diagram of power increase opposite to the direction of power flow. That diagram replaces the Sankey diagram of power decrease in the direction of power flow.
Źródło:
Polish Maritime Research; 2011, 1; 3-9
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
DETERMINANTS OF TECHNICAL EFFICIENCY OF PRODUCTION FACTORS AT FAMILY FARMS
Autorzy:
Roman, Sass,
Powiązania:
https://bibliotekanauki.pl/articles/898181.pdf
Data publikacji:
2019-02-20
Wydawca:
Kujawsko-Pomorska Szkoła Wyższa w Bydgoszczy
Tematy:
technical efficiency of production factors
DEA method
regression calculus
efficiency determinants
Opis:
The main objective of the research was to determine the impact of selected endogenous factors, as well as the amount of subsidies from EU funds on the technical efficiency of production factors in family farms. The research included farms from Bydgoszcz subregion which before pre-accession of Poland to the European Union (1996 -2003) benefited from preferential loans. At the same time, in the years 2004-2011, they kept accounting in the Polish FADN system. Using the regression calculus, the impact of articular factors on the technical efficiency of farms was determined. The structural parameters of linear and non-linear models with many independent variables were estimated. As a result of the conducted analyzes, it was found that they improved efficiency: capital expenditure before and after accession, land area increase before accession, production intensity, increase in equity after accession, asset debt and external costs. However, they worsened efficiency: work expenses, pig stocking, debt of equity, fixed costs as well as additional investment activity and the share of subsidies in income.
Źródło:
Roczniki Ekonomiczne Kujawsko-Pomorskiej Szkoły Wyższej w Bydgoszczy; 2018, -(11); 147-162
1899-9573
Pojawia się w:
Roczniki Ekonomiczne Kujawsko-Pomorskiej Szkoły Wyższej w Bydgoszczy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transport Accessibility In Light Of The DEA Method
Autorzy:
Górniak, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/633171.pdf
Data publikacji:
2014-12-01
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
transport accessibility
indicators of infrastructure
efficiency
DEA method
Opis:
The development of transport infrastructure and increasing the efficiency of transport services are major factors of economic growth. The concept of transport accessibility can be analysed in various aspects. This article focuses on the accessibility of freight transport by road and rail, measured with infrastructure equipment. The primary objective of this study is to determine the efficiency of selected European countries in 2000, 2005 and 2010 in terms of transport accessibility for given expenditures and results. The efficiency will be measured with the Data Envelopment Analysis, which assesses the efficiency with which a given economy transforms expenditures into results. The hypothesis assumes the existence of differences between the efficiency in terms of transport accessibility in European countries and a possibility to increase this efficiency by using the experience of countries with a high efficiency level.
Źródło:
Comparative Economic Research. Central and Eastern Europe; 2014, 17, 4; 55-70
1508-2008
2082-6737
Pojawia się w:
Comparative Economic Research. Central and Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An alternative approach for dissemination of mass unit after the new definition of the kilogram
Autorzy:
Vâlcu, Adriana
Powiązania:
https://bibliotekanauki.pl/articles/2051844.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
new definition of the kilogram
efficiency of the weighing design
subdivision method
multiplication method
mass dissemination
Opis:
The paper proposes an alternative approach to the dissemination of the mass unit in the context of the new definition of the kilogram. Considering the fact that redefinition allows mass to be directly realized at any value, the paper presents a model of the dissemination of mass which can be used for diferent series in grams, where the measurements are performed in the downward direction, but using 1 g as the reference standard (whose mass value is assumed to be determined after the redefinition using the capacitive or electrostatic techniques). The subdivision method presented (suitable for 1 weights) has as its starting point the approach used by Mihailov-Romanowski for the calibration of series in kilograms which uses an orthogonal system of equations. Thus, according to this method, a solution for obtaining the orthogonality of a system can be the use as defining standard of the ratio between the mass having the highest nominal value in the set and the standard (unit). The results obtained for a set of weights from 10 to 1 g using the subdivision method, in accordance with the Mihailov-Romanowski principle, are validated with those obtained with the multiplication method, where the measurements start from 1 to 10 g, as in the case of the kilogram series. The mass values obtained with both methods are equal, while the estimated uncertainties are slightly diferent, yet insignificant. The results obtained previously for the same sequence of weights using the traditional dissemination method, where the 1 kg standard is used as reference, are also presented in the paper. The results show that only three weights out of six have a mass value insignificantly diferent by 1 × 10-4 mg compared to those obtained with the methods presented in this article, but, in terms of uncertainty, there are some diferences. The way of disseminating the mass unit presented in this article can be extended to other diferent sequences of nominal values such as: (5 . . . 1) g, (20 . . . 1) g, (50 . . . 1) g or (500 . . . 100) g if the reference standard is 100 g.
Źródło:
Metrology and Measurement Systems; 2022, 29, 1; 3-16
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
EFFICIENCY AND RETURNS TO SCALE – A CONCEPT OF USING DETERMINISTIC APPROACH
Autorzy:
Jarzębowski, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/453784.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
efficiency
economies of scale
the DEA method
food processing sector
Opis:
In the paper the author considered estimation of efficiency, which measures the ability of the company to obtain the maximum output from given inputs. The analysis has been carried out by using deterministic method (on the example of the DEA method, Data Envelopment Analysis). The two-step procedure was proposed, namely the returns to scale were specified in the sample and, basing on that, the efficiency of individual enterprises was assessed. In the paper the data from the companies of a key food processing sector in Poland, namely the meat processing, was used. The analysis covered the period 2006–2011, the sample covered from 195 up to 210 enterprises (depending on the analyzed year).
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2014, 15, 2; 102-111
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical efficiency of dairy farms in 2008-2017
Efektywność techniczna gospodarstw mlecznych w latach 2008-2017
Autorzy:
Świtłyk, Michał
Powiązania:
https://bibliotekanauki.pl/articles/584119.pdf
Data publikacji:
2020
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
DEA method
technical efficiency
production of milk
metoda DEA
efektywność techniczna
produkcja mleka
Opis:
The aim of the study was to determine the technical efficiency of farms specialising in milk production (type 45) using the DEA method. The research covered the period 2008- 2017. Data for calculations were collected using the indirect observation method based the data from the Polish FADN Cfor2008-2017 as the source of actual data. 11055 dairy farms were included in the study. Dairy farms with fewer than 15 cows were excluded from the study. The DEA method uses an approach that minimizes inputs and the CCR and BCC models. In the description of the results, the surveyed farms were divided into three groups: effective farms for which the technical efficiency coefficient was 100%, farms close to effective, in which the technical efficiency coefficient was within <90<100% and ineffective farms, in which the analysed coefficient was smaller than 90%. In the analysis of the results of the given dairy farms, the farms were divided according to their economic size, cow herd size and milk yield.
Celem badań było określenie efektywności technicznej gospodarstw wyspecjalizowanych w produkcji mleka (typ 45) z zastosowaniem metody DEA. Badania obejmowały lata 2008-2017. Dane do obliczeń zebrano, posługując się metodą obserwacji pośredniej i wykorzystując jako źródło danych aktualnych dane z polskiego FADN za lata 2008-2017. Z badań wyłączono gospodarstwa mleczne, które posiadały poniżej 15 krów. W metodzie DEA zastosowano podejście minimalizujące nakłady i modele CCR i BCC. W opisie wyników badane gospodarstwa podzielono na trzy grupy: gospodarstwa efektywne, dla których współczynnik efektywności technicznej wynosił 100%, gospodarstwa zbliżone do efektywnych, w których współczynnik efektywności technicznej mieścił się w granicach <90<100%, i gospodarstwa nieefektywne, w których analizowany współczynnik był mniejszy niż 90%. W analizie wyników danych gospodarstw mlecznych dokonano podziałów gospodarstw według ich wielkości ekonomicznej, wielkości stada krów, wydajności mlecznej.
Źródło:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu; 2020, 64, 2; 81-96
1899-3192
Pojawia się w:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficiency of Aluminum Oxide Inclusions Removal from Liquid Steel as a Result of Collisions and Agglomeration on Ceramic Filters
Autorzy:
Kalisz, D.
Kuglin, K.
Powiązania:
https://bibliotekanauki.pl/articles/947631.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
filtration
nonmetallic inclusions
efficiency of collisions
PSG method
filtracja
wtrącenia niemetaliczne
metoda PSG
Opis:
Filtration is one of the most efficient methods of removing Al2O3 inclusions from liquid steel. The efficiency of this process depends on the physicochemical parameters of liquid metal, inclusion and properties of the applied filters. The particles attracted during filtration undergo agglomeration, collisions and chemical reactions on the filter surface, with the emphasis on the mechanism of particle collisions and the role of material from which the filter was made. The aluminum oxide inclusions collide with the filter surface and as the growing process continues, the particles also collide with the previously adsorbed inclusions. At the interface of particle and filter the mixing of the metal bath is most intense, being a result of a sudden change of flow direction and breaking up the stream of liquid metal which is in a direct contact with material. The efficiency of filtration is defined not only by the behavior of individual particles but of all population. The simulations revealed that only a small fraction of these particles adheres directly to the filter material; most of them stick to the former ones. Attention should be also paid to the fact that some of the inclusions which contacted the filter walls do not form a permanent connection and are then entrained by metal. Authors solved the problem of agglomeration and collisions of Al2O3 inclusions with the ceramic surface of the filter with the PSG method, mainly used for the analysis of agglomeration of inclusions during steel refining in the ladle.
Źródło:
Archives of Foundry Engineering; 2020, 20, 2; 43-48
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Peculiarities of Implementation of Staffing Mechanism of Local Authorities Effective Functioning
Autorzy:
Kizi Mosumova, Ainura Kiaram
Powiązania:
https://bibliotekanauki.pl/articles/1933226.pdf
Data publikacji:
2020-03-31
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
efficiency of functional processes
assessing the quality of staffing
local governments
ensuring efficient operation
qualimetry method
Opis:
The essence of staffing of local governments is clarified in the work. It is substantiated that this is a system of principles, forms and methods of forming the necessary qualitative and quantitative composition of local governments, aimed at improving human resources and their effective use. The mechanism of staffing of local authorities effective functioning is offered, the feature of which is the inclusion of the processes of formation and realization. As a target orientation of the mechanism of staffing of local governments, their effective functioning is defined by achieving a certain goal to increase the level of life of the territorial community. The use of the qualimetric approach for construction of the optimum scenario of staffing of effective functioning of local governments is substantiated. The scheme of construction of qualimetric model of an estimation of quality of staffi ng of eff ective functioning of local governments is developed. It is determined that the quality of staffi ng of local governments is determined by analyzing the factors that have the greatest impact on of local governments staffi ng. As part of the study of the Merefa city united territorial community (Kharkiv region) the proposed qualimetric model was tested. Visualization of the level of quality of staffing of Merefa UTC in terms of functional processes allowed to determine that such functional processes as staff motivation and incentives, as well as staff development, professional development are the most important areas for improving the staffing process. The results of the sociological survey confirmed the important role of the level of competence of employees of executive bodies and the level of remuneration in the context of improving the efficiency of UTC. The proposed qualimetric model for assessing the quality of staffing allows not only to determine the effectiveness of local governments staffing, but also to identify those functional processes that require the most attention in terms of improving the functioning efficiency.
Źródło:
Reality of Politics; 2020, 11; 118-135
2082-3959
Pojawia się w:
Reality of Politics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Peculiarities of implementation of staffing mechanism of local authorities effective functioning
Autorzy:
Mosumov, Ainura Kiaram Kizi
Powiązania:
https://bibliotekanauki.pl/articles/1933251.pdf
Data publikacji:
2020-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
efficiency of functional processes
assessing the quality of staffing
local governments
ensuring efficient operation
qualimetry method.
Opis:
The essence of staffing of local governments is clarified in the work. It is substantiated that this is a system of principles, forms and methods of forming the necessary qualitative and quantitative composition of local governments, aimed at improving human resources and their effective use. The mechanism of staffing of local authorities effective functioning is offered, the feature of which is the inclusion of the processes of formation and realization. As a target orientation of the mechanism of staffing of local governments, their effective functioning is defined by achieving a certain goal to increase the level of life of the territorial community. The use of the qualimetric approach for construction of the optimum scenario of staffing of effective functioning of local governments is substantiated
Źródło:
Reality of Politics; 2020, 12; 41-70
2082-3959
Pojawia się w:
Reality of Politics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Steady-state and transient heat transfer through fins of complex geometry
Autorzy:
Taler, D.
Taler, J.
Powiązania:
https://bibliotekanauki.pl/articles/240664.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fin of complex geometry
fin efficiency
finite volume method
finite element method
geometria złożona
wydajność
metoda objętości skończonych
metoda elementów skończonych
Opis:
Various methods for steady-state and transient analysis of temperature distribution and efficiency of continuous-plate fins are presented. For a constant heat transfer coefficient over the fin surface, the plate fin can be divided into imaginary rectangular or hexangular fins. At first approximate methods for determining the steady-state fin efficiency like the method of equivalent circular fin and the sector method are discussed. When the fin geometry is complex, thus transient temperature distribution and fin efficiency can be determined using numerical methods. A numerical method for transient analysis of fins with complex geometry is developed. Transient temperature distributions in continuous fins attached to oval tubes is computed using the finite volume - finite element methods. The developed method can be used in the transient analysis of compact heat exchangers to calculate correctly the heat flow rate transferred from the finned tubes to the fluid.
Źródło:
Archives of Thermodynamics; 2014, 35, 2; 117-133
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stosowanie empowermentu w komunikacji interpersonalnej i organizacyjnej w pracy zawodowej pracowników i kadry kierowniczej w organizacjach. Cz. 5®
Applying empowerment in the interpersonal communication and organizational in the career of employees and the senior staff in organizations. P. 5®
Autorzy:
Pawłowski, M.
Kułakowska, A.
Piątkowski, Z.
Sajecka, R.
Wójtowicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/228844.pdf
Data publikacji:
2018
Wydawca:
Wyższa Szkoła Menedżerska w Warszawie
Tematy:
empowerment
komunikacja interpersonalna
sprawność komunikacji
techniki komunikacji
formy i metody komunikacj
bariery sprawności komunikacji
pracownicy
kadra kierownicza
the interpersonal communication
the efficiency of the transport
techniques of the communication
the form and the method of the communication
barriers of the efficiency of the transport
employees
senior staff
Opis:
Celem artykułu jest zaprezentowanie kolejnego etapu wyników badań ankietowych dotyczących stosowania empowermentu w komunikacji interpersonalnej i organizacyjnej w pracy zawodowej pracowników i kadry kierowniczej w organizacjach. Upełnomocnienie pracowników i kadry kierowniczej w pracy zawodowej odbywa się również w takich obszarach jak: sprawność komunikacji interpersonalnej, techniki i formy komunikacji interpersonalnej oraz bariery sprawności komunikacji interpersonalnej w pracy zawodowej pracowników i kadry kierowniczej w organizacjach. Badania uwiarygodniają wcześniej postawioną tezę, iż pracownicy partycypując w rolach kierowników: interpersonalnej, informacyjnej i decyzyjnej przyczyniają się do podniesienia sprawności funkcjonowania organizacji oraz identyfikują się z jej celami.
Presenting the next stage of results of the questionnaire survey concerning applying is a purpose of the article empowerment in the interpersonal and organizational communication in the career of employees and the senior staff in organizations. Authorizing employees and the senior staff in the career also takes place in such areas as: fitness of the interpersonal communication, the technique and the form of the interpersonal communication and the barrier of the fitness of the interpersonal communication in the career of employees and the senior staff in organizations. Examinations are lending credence to the thesis earlier put forward, that for the worker participating in roles of managers: interpersonal, information and decision-making they are contributing to raise the efficiency of functioning of the organization as well as are identifying themselves with her purposes.
Źródło:
Postępy Techniki Przetwórstwa Spożywczego; 2018, 1; 163-169
0867-793X
2719-3691
Pojawia się w:
Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ metody doboru cech na efektywność klasyfikacji na przykładzie analizy jakości życia w świetle zrównoważonego rozwoju
The influence of the method of the feature selection on the classification’s efficiency based on the quality of life in light on the sustainable development
Autorzy:
Sompolska-Rzechuła, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/452945.pdf
Data publikacji:
2012
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
metoda doboru cech
efektywność klasyfikacji
jakość życia
rozwój zrównoważony
the feature selection method
the classification’s efficiency
quality of life
sustainable development
Opis:
W artykule podjęto próbę odpowiedzi na pytanie: Czy wyniki otrzymane za pomocą różnych metod doboru cech mają wpływ na efektywność klasyfikacji? Do badania wykorzystano dwie metody doboru cech: parametryczną metodę coraz metodę odwróconej macierzy współczynników korelacji. Skuteczność grupowań zweryfikowano za pomocą wskaźników homogeniczności, heterogeniczności i poprawności skupień. W ocenie efektywności grupowań wykorzystano podejście z medianą Webera. Badanie dotyczyło powiatów województwa zachodniopomorskiego pod względem jakości życia w świetle zrównoważonego rozwoju.
In the article attempts to answer the question: Do the results, obtained by means of the various feature selection method, have any influence on the classification’s efficiency? For the analysis two methods were used: parametric method and the matrix inverse method of the correlation coefficients. The effectiveness of classifications was checked by use of homogeneity, heterogeneity and correctness of clustering coefficients. The approach was used in the assessment of the classification’s efficiency, with the center of gravity replaced with the Weber’s median. The analysis was local and concerned the districts in zachodniopomorskie province in terms of the quality of life in the light of sustainable development.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2012, 13, 3; 180-190
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of critical gaps and follow-up times at median uncontrolled T-intersection
Autorzy:
Barchański, Adrian
Żochowska, Renata
Powiązania:
https://bibliotekanauki.pl/articles/2067407.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
transportation system
efficiency of system
uncontrolled intersection
critical gap
follow-up time
Siegloch method
system transportowy
sprawność systemu
skrzyżowanie niekontrolowane
metoda Sieglocha
Opis:
The efficiency of the entire transportation system depends on the capacity of the individual elements that make up the given network. Point-type elements of the road and street network include intersections of different types. Critical gaps and follow-up times related to individual movements are important determinants of the capacity of such objects. There are many ways to estimate such times. The article discusses the assumptions and scheme one of them - the Siegloch method. The objective of the article is to analyze the process of determining critical gaps and follow-up times at the median uncontrolled T-intersections that are rare in the road and street network and have been studied to a limited extent. The commonly used HCM, HBS, and Polish (MOP SBS) methods in their current form do not consider the specificity of such intersections and thus may not give reliable results. Due to their characteristics in terms of geometry conditions, there is a need for an individual approach to estimate both critical gaps and follow-up times. The article contains the results of empirical research conducted on a selected real object in the Upper Silesian agglomeration in Poland. The intersection under study is located in one of the central districts of Katowice city, in the built-up area serving commercial and service functions. The analysis of the behavior of individual drivers waiting for the possibility to continue driving was conducted separately for each minor traffic movement. The values of critical gaps and follow-up times were determined for all four subordinate movements. The values obtained are different from those contained in the Polish manual, which is recommended for use. The research should be considered as pilot studies that justify the need to develop a separate approach to the estimation of the critical gaps and follow-up times at median uncontrolled T-intersections.
Źródło:
Archives of Transport; 2021, 60, 4; 105--124
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie metody szacowania kosztu cyklu życia (LCC) w podejmowaniu decyzji o zakupie maszyn górniczych
Use of methods for estimating the life cycle cost (LCC) to decide on the necessity of buying mining machinery
Autorzy:
Bogacz, P.
Powiązania:
https://bibliotekanauki.pl/articles/164649.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Górnictwa
Tematy:
górnictwo
środki trwałe
zakupy
metoda szacowania kosztu cyklu życia (LCC)
efektywność ekonomiczna
mining
fixed assets
purchases
economic efficiency
method of estimating life-cycle cost (LCC)
Opis:
W artykule przedstawiono rolę i sposób użycia metody szacowania kosztu cyklu życia (LCC) w procesie bardziej efektywnego zarządzania zakupem i wykorzystaniem maszyn górniczych w przedsiębiorstwach górniczych w Polsce. Punktem wyjścia stało się wskazanie na nieścisłości prawne i brak konsekwencji we wprowadzaniu prawnych aktów wykonawczych dla tego typu rozwiązań w Polsce. Następnie porównano z użyciem metodyki LCC efektywność ekonomiczną użycia klimatyzatora grupowego produkcji Elgór+Hansen oraz produktu dla niego konkurencyjnego, wykazując końcowo znacznie lepszy wynik uzyskany w przypadku klimatyzatora Elgór+Hansen, będącego w zakupie droższym, ale po uwzględnieniu kosztów w cyklu życia znacznie tańszym od produktu konkurencyjnego.
This paper presents the role and use of methods for estimating the life cycle cost (LCC) in the process of managing the purchase and use of mining machines in mining companies in Poland more effectively. The starting point for this work has become a reference to the legal inaccuracies and inconsistencies in the implementation of legal acts which give effect to this type of solutions in Poland. Moreover, a comparison of LCC methodology of economic efficiency of the air conditioner made by Elgór + Hansen with a competitive produkt was presented, showing much better result obtained from the air conditioner made by Elgór + Hansesn which is a more expensive one, however, after taking into account the lifecycle costs, much cheaper than the competitive product.
Źródło:
Przegląd Górniczy; 2015, 71, 8; 15-18
0033-216X
Pojawia się w:
Przegląd Górniczy
Dostawca treści:
Biblioteka Nauki
Artykuł

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