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Wyszukujesz frazę "Demand" wg kryterium: Temat


Tytuł:
A review on demand response based ancillary services offered by industries
Autorzy:
Ghasemi, Ahmad
Gerami, Nilufar
Powiązania:
https://bibliotekanauki.pl/articles/41193751.pdf
Data publikacji:
2024
Wydawca:
Politechnika Warszawska, Instytut Techniki Cieplnej
Tematy:
energy pricing
demand side management
demand response
smart grid
ceny energii
zarządzanie stroną popytową
reagowanie na popyt
inteligentna sieć
Opis:
Industrial power consumers have a considerable share of the global power demand; as a result, effective solutions have to be adopted to optimize the industrial power consumption. Demand response Programs (DRPs) provide such solutions. These programs are growingly studied as the industrial power consumption has increased and the implementation costs of the new technologies have decreased in recent years. DRP implementation reduces the dependency on the expensive energy storage technologies and flexible backup power sources. It seems that, DRP is not widely used in industry, yet its benefits are not practically exploited. The present work reviews the implementation of DRPs in industry and introduces the opportunities of industries for offering ancillary services to the market. Then, the industries which highly suit the specific kind of industrial DRPs are introduced and their processes are analyzed from the DRP point of view. Next, the DRP projects are continentally categorized and the advancements of different countries in specific kind of industrial DRPs are noted. Finally, the discussions and conclusion are presented.
Źródło:
Journal of Power Technologies; 2024, 104, 1; 32-55
1425-1353
Pojawia się w:
Journal of Power Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Demand for private health insurance: an empirical study of post-communist countries
Autorzy:
Śliwiński, Adam
Borkowska, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/33735048.pdf
Data publikacji:
2024-07-02
Wydawca:
Szkoła Główna Handlowa w Warszawie. Kolegium Zarządzania i Finansów
Tematy:
health insurance
demand analysis
Opis:
The development of voluntary health insurance is characteristic of post-Communist and CEE countries. The aim of the paper is to identify the factors determining the demand for private voluntary health insurance. The main finding of the research is that the most important factor is the demographic factor. Other factors include the factor related to the ineffectiveness of treatment under universal health insurance, the factor related to health condition, the demographic factor related to longevity, and the factor related to insurance awareness and income. The research confirms conclusions from previously published studies. The most important is to confirm that the income factor positively influences the studied phenomenon. However, the results shed new light on the aspect of the demand factor, as this indicates the ageing of society and the consequent increase in private spending on health, which are the key mechanisms in the discussion, with the other factors constituting a complementary element.
Źródło:
Journal of Management and Financial Sciences; 2023, 50; 109-129
1899-8968
Pojawia się w:
Journal of Management and Financial Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Economic Aspects of Cash Access Problems
Aspekt ekonomiczny problemów z dostępem do gotówki
Autorzy:
Manikowski, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/32083853.pdf
Data publikacji:
2024-01-17
Wydawca:
Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
Tematy:
physical money
access to cash
financial exclusion
ATM network
demand for cash
pieniądz fizyczny
dostęp do gotówki
wyłączenie finansowe
sieć bankomatów
popyt na gotówkę
Opis:
Purpose: The aim of the article is to examine if difficulty of access to cash may influence the financial exclusion in Poland. Design/methodology/approach: The analysis was performed using microdata collected in the survey on payment habits of Polish consumers and spatial data on ATMs locations. Estimated distance to points where cash can be withdrawn together with feature of respondents of the state of possession of a payment account helps to identify relationships between access to cash and financial exclusion. To prove significance of the relationship, a statistical test is used. Findings: The Covid-19 pandemic has highlighted the existence of a real risk associated with the problem of the physical availability of cash, which is caused by the systematic reduction of the network of ATMs and commercial bank branches handling cash, which are the main points where consumers can withdraw it. This may consequently lead to financial and social exclusion of certain groups of consumers for whom cash is the main, or even the only, means of making payments. Results support the thesis that payment account without (real) option of easy access to cash may discourage consumers from opening the account and contribute to increased financial exclusion. It is especially visible in rural regions and small towns where we observe high level of exclusion (lack of payment accounts) and longer distance to the nearest ATM. Research limitations/implications: The presented results were based on simple statistical analyses. Further research should include econometric modeling using logit/probit models. Originality/value: The obtained results are the first on the impact of access to cash on financial exclusion in Poland and consistent with the situation in other European countries. The results allow to show the importance of access to physical money in a broader context than just having means of payment to pay for purchases.
Cel: celem artykułu jest zbadanie czy trudność w dostępie do gotówki może wpływać na wykluczenie finansowe w Polsce. Projekt/metodologia/podejście: do analizy wykorzystano mikrodane zebrane w badaniu zwyczajów płatniczych polskich konsumentów oraz dane przestrzenne dotyczące lokalizacji bankomatów. Oszacowana odległość do punktów wypłaty gotówki wraz z charakterystyką respondentów dotyczącą stanu posiadania rachunku płatniczego pozwoliła na identyfikację związku pomiędzy dostępem do gotówki a wykluczeniem finansowym. Aby wykazać istotność tej zależności, zastosowano test statystyczny. Wyniki: pandemia Covid-19 uwydatniła istnienie realnego ryzyka związanego z problemem fizycznej dostępności gotówki, co jest spowodowane systematycznym zmniejszaniem się sieci bankomatów i oddziałów banków komercyjnych obsługujących gotówkę, będących głównymi punktami, w których konsumenci mogą ją wypłacać. Może to w konsekwencji prowadzić do wykluczenia finansowego i społecznego niektórych grup konsumentów, dla których gotówka jest głównym, a nawet jedynym środkiem dokonywania płatności. Wyniki potwierdzają tezę, że rachunek płatniczy bez (rzeczywistej) opcji łatwego dostępu do gotówki może zniechęcić konsumentów do otwierania rachunku i przyczynić się do wzrostu wykluczenia finansowego. Jest to szczególnie widoczne na obszarach wiejskich i w małych miastach, gdzie obserwuje się wysoki poziom wykluczenia (brak rachunku płatniczego) i większą odległość do najbliższego bankomatu. Ograniczenia/wnioski z badań: prezentowane wyniki bazowały na prostych analizach statystycznych. Dalsze badania powinny uwzględnić modelowanie ekonometryczne z wykorzystaniem modeli logit/probit. Oryginalność/wartość: uzyskane tutaj wyniki są pierwszymi w obszarze wpływu dostępu do gotówki na wykluczenie finansowe w Polsce i spójne ze stanem w innych krajach europejskich. Wyniki pozwalają na wykazanie ważności dostępu do fizycznego pieniądza w szerszym kontekście niż tylko posiadanie środków płatniczych służących do dokonywania płatności za zakupy.
Źródło:
European Management Studies; 2023, 21, 4; 109-130
2956-7602
Pojawia się w:
European Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Popyt na zróżnicowaną dietę w polskich gospodarstwach domowych
Demand for food diversity in Polish households
Autorzy:
Wolak, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/31339988.pdf
Data publikacji:
2024-01-31
Wydawca:
Główny Urząd Statystyczny
Tematy:
popyt
zróżnicowana dieta
gospodarstwo domowe
regresja kwantylowa
demand
diversity of a diet
households
quantile regression
Opis:
Analiza popytu polega w głównej mierze na określeniu związków zachodzących między spożyciem a cenami dóbr oraz zmieniającymi się dochodami konsumentów. Nieco innym ujęciem badania determinant popytu jest próba wyjaśnienia zapotrzebowania na zróżnicowaną dietę, czyli poszukiwanie czynników mających statystycznie istotny wpływ na ilość i rozkład dóbr nabywanych przez konsumentów. Celem badania omawianego w artykule jest wyznaczenie czynników istotnie wpływających na zróżnicowanie diety w gospodarstwach domowych w Polsce. Wykorzystano nieidentyfikowalne dane jednostkowe pochodzące z badania budżetów gospodarstw domowych przeprowadzonego przez Główny Urząd Statystyczny w 2020 r. Na podstawie estymacji modelu regresji kwantylowej oszacowano wartości parametrów dla zmiennych objaśniających, które opisują badane gospodarstwa. Uzyskano rezultaty świadczące o tym, że poziom zróżnicowania diety w gospodarstwie domowym zależy zarówno od jego dochodu i wielkości, jak i od takich jego cech, jak: grupa społeczno-ekonomiczna, miejsce zamieszkania oraz wiek i wykształcenie głowy gospodarstwa domowego. Ponadto wskazano, że wpływ wymienionych czynników na badane zjawisko zależy od poziomu zróżnicowania diety. Dowiedziono również, że czynniki te mają większe znaczenie w przypadku gospodarstw domowych, które cechują się niewielkim popytem na zróżnicowaną dietę.
Demand analysis focuses mainly on the study of the relationship between consumption, prices of goods and the changing income of consumers. An attempt aiming to explain the demand for food diversity involves a slightly different approach to research on the determinants of demand. This approach searches for factors that have a statistically significant effect on the quantity and distribution of goods purchased by consumers. The aim of the study described in the article is to determine the factors that have a significant influence on the diversity of the diet in Polish households. The study uses non-identifiable microdata from the 2020 Household Budget Survey conducted by Statistics Poland. Based on the estimation of the quantile regression model, parameter estimates were obtained for the explanatory variables describing the surveyed households. The results confirm that, apart from income and household size, the level of the diversity of a diet depends on the following characteristics: the socio-economic status of the household, place of residence, and the age and education level of the head of the household. The study also shows that the effect of the analysed factors depends on the degree to which the diet is diverse. In general, the impact of the considered factors is more significant for households showing a low demand for a varied diet.
Źródło:
Wiadomości Statystyczne. The Polish Statistician; 2024, 69, 1; 37-48
0043-518X
Pojawia się w:
Wiadomości Statystyczne. The Polish Statistician
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
„Po prostu włącz”. Strumieniowanie jako praktyka technokulturowa
“Come On, Just Hit Play”: Streaming as a Technocultural Practice
Autorzy:
Gwóźdź, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/24943658.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Instytut Sztuki PAN
Tematy:
praktyka technokulturowa
platformy streamingowe
strumień telewizyjny
streaming na żywo
wideo na życzenie
remediacja
technocultural practice
streaming platforms
television flow
live streaming
Video on Demand
remediation
Opis:
Autor proponuje refleksję nad streamingiem jako jedną z dominujących technokultur mediów pierwszych dekad XXI w. Odróżniając pojęcie strumienia (flow) telewizji od strumieniowania (streaming) w sieci, rozważa live streaming („widzenie na odległość” korzystające z pobierania danych z serwera w czasie rzeczywistym) w opozycji do formuły live tradycyjnej, linearnej telewizji (uwikłanej w temporalność programu). Odnośnie do korzystania z filmowych platform sieciowych (zwłaszcza Video on Demand), wskazuje na proces remediatyzacji filmów w przestrzeni Internetu. Przywołuje filmy z cyklu Netfliksa Czarne lustro (Black Mirror): Bandersnatch (2018) Davida Slade’a oraz Joan jest okropna (Joan Is Awful, 2023) Ally’ego Pankiwa, a także Cam (2018) Daniela Goldhabera oraz Spree (2020) Eugene’a Kotlyarenki i ujawnia ich autorefleksyjny charakter jako metafor strumieniowania.
The author proposes a reflection on streaming understood as one of the dominant media technocultures of the early 21st century. By distinguishing the concept of stream (TV flow) from streaming (an Internet-based activity), he presents live streaming (‘remote viewing’ using real-time data retrieval from a server) in opposition to the live formula of traditional, linear television (entangled in the temporality of the TV programme). Regarding the use of Internet film platforms (especially Video on Demand), he indicates the process of remediation of films in the Internet space. Referring to films from Netflix’s Black Mirror series such as Bandersnatch (2018) by David Slade and Joan Is Awful (2023) by Ally Pankiw, as well as to Cam (2018) by Daniel Goldhaber and Spree (2020) by Eugene Kotlyarenko, the author depicts their self-reflective nature as streaming metaphors.
Źródło:
Kwartalnik Filmowy; 2023, 124; 6-26
0452-9502
2719-2725
Pojawia się w:
Kwartalnik Filmowy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A statistical interpretation of a market demand curve for a commodity obeying the law of demand
Autorzy:
Lahiri, Somdeb
Powiązania:
https://bibliotekanauki.pl/articles/24201281.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
market demand curve
statistical interpretation
reservation price
willingness to pay
consumers surplus
Opis:
In this note we provide a statistical interpretation of the Marshallian market demand curve of a commodity that obeys the law of demand and which has a finite and positive level of satiation. A consequence of our approach is that in the context of two goods, we are able to obtain demand functions which are very similar to those obtained by “budget-constrained Cobb–Douglas utility maximization”, but now as a result of a “budget-constrained linear utility maximization” exercise, although our budget constraint is “slightly different” from the one that would be used for the former optimization problem.
Źródło:
Managerial Economics; 2023, 23, 1; 27--38
1898-1143
Pojawia się w:
Managerial Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study of macroeconomic variables that effected employment in the United States from 1948 to 2021
Autorzy:
Reid, Littlejohn
Powiązania:
https://bibliotekanauki.pl/articles/30118851.pdf
Data publikacji:
2023
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
expected demand
employment
consumption
money supply
trade
Opis:
The paper provides an analysis of important U.S. macroeconomic variables that effect aggregate employment. The paper seeks to answer the question “What are the deter¬minants of changes in aggregate employment in the United States of America (U.S.)?” This is an important research topic because significant increases in unemployment can have a profound effect on an entire society, not just on its unemployed workers. When employment declines, public health declines, crime increases, suicides increase, and public revenues decrease. This paper uses quarterly data from 1948-2021 to estimate the effect of important macroeconomic variables on aggregate employment. The macroeconomic variables include personal consumption expenditures, U.S. federal government expenditures, nominal GNP, international trade (imports plus exports), M3 money stock, the mini-mum wage level, non-residential fixed investment, non-manufacturing employment, and U.S. federal tax receipts.
Źródło:
Central European Review of Economics & Finance; 2023, 44, 3; 125-152
2082-8500
2083-4314
Pojawia się w:
Central European Review of Economics & Finance
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An empirical study of air transport demand forecast in Nigeria
Autorzy:
Nwaogbe, Obioma R.
Monday, Adebayo
Wokili-Yakubu, Huwa
Powiązania:
https://bibliotekanauki.pl/articles/2204248.pdf
Data publikacji:
2023
Wydawca:
Fundacja Centrum Badań Socjologicznych
Tematy:
air travel demand
air transport
airfare
passenger
sustainability
Opis:
The study aims to estimate the air travel demand forecast for domestic passengers' travels in Nigeria from 2002-2016. Data resourced from the Central Bank of Nigeria, the National Bureau of Statistics, and the Federal Airport Authority of Nigeria. The study utilized a multiple regression model using a Stata-Graphic software solver to analyze the data. From the analysis, the result shows that there is a significant relationship between the explanatory variable (passengers) and unexplanatory variables National Disposable Income, Population, Average Airfare, Gross Domestic Product, Exchange Rate, Total Expenditure, and Crude oil price, accounted for adjusted R of 93.624% relationship with demand for domestic air travel of passenger. The R-square statistic shows that the fitted model explains the variability in the number of passengers (NPAX), which is 96.8124%. The Hypothesis testing reveals that National Disposable Income and Airfare have a strong statistically significant relationship with the demand for domestic air travel with a P-value of 0.0013. Mores, a statistically significant relationship exists between National Disposable Income, Average airfare, and Crude oil price with P-values of 0.0017 and 0.0445, respectively. Furthermore, a forecast of the number of passengers and average airfare was carried out using ARIMA (1,0,0) model, which made available the future predicted values for the number of passenger movements and average airfare for the next 10-12 years to come. Thus, the study recommends that stakeholders in the air transport sector should work towards improving the capacity and infrastructure to accommodate the growth of air travel demand for domestic air travel in Nigeria. Policy implications were made on regulating the sector by having a good pricing policy to control the air fare for the industry.
Źródło:
Journal of Sustainable Development of Transport and Logistics; 2023, 8, 1; 6--23
2520-2979
Pojawia się w:
Journal of Sustainable Development of Transport and Logistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An inventory model with price and credit installments-dependent demand
Autorzy:
Hasan, Md. Rakibul
Siddiqa, Mst. Ayesha
Roy, Tutul Chandra
Al-Amin, Md.
Daryanto, Yosef
Powiązania:
https://bibliotekanauki.pl/articles/27315579.pdf
Data publikacji:
2023
Wydawca:
STE GROUP
Tematy:
inventory
pricing
installment-dependent demand
trade credit
Opis:
Financial capability is one of the primary drivers for buyers to make purchases. Therefore, sellers must set an optimum selling price and consider trade credit facilities to attract more demand. This paper proposes an inventory decision model in which customer demand depends on the price and number of credit installments to serve low-abled buyers. This study has developed a demand function with a positive impact on installment policies and the effect of the selling price. Two models have been formulated to optimize the selling price and positive stock time, m total profit, with and without installment policies. Then, numerical examples and sensitivity analysis illustrate the proposed model for different cases. The study has found that the selling price and positive stock time can be optimized. Profits can be higher in the case of an installment facility than in the case without an installment facility. It shows positive responses from the buyer to the installment policy.
Źródło:
Management Systems in Production Engineering; 2023, 2 (31); 111--127
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis and forecast of passenger flows in public transport - the case of Poland
Autorzy:
Gorzelanczyk, Piotr
Pawłowski, Adrian
Powiązania:
https://bibliotekanauki.pl/articles/22615545.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
demand
urban transport
Polska
Opis:
Public transportation provides its services to both urban centers and neighboring areas in the immediate vicinity of the city. The problem of urban transportation is evident, the number of people willing to use public transportation has decreased. Therefore, there is a need to delve into the issue and conduct an analysis of the demand for urban transportation in Poland in 2000-2030, this will allow us to assess in what direction urban transportation is heading, whether there is an increase in the number of people using it, or whether there is a downward trend (Zielińska 2018). Based on CSO statistics from 2009-2020 for the analysis of demand for public transportation in Poland, a forecast of people using public transportation was conducted using Statistica software for 2021-2030. Due to the situation with the COVID-19 pandemic, the study was conducted in 2 ways – with and without 2020. Public transportation will make less and less profit and even losses for the next few years through rising gasoline and energy prices. Virtually in each of the provinces, and likewise throughout Poland, a decline in the number of people willing to use public transportation is evident. conclusions. On the basis of the surveys carried out, there is a general trend that shows the current state of public transport. In most of the cases studied, a similar conclusion emerges, namely that public transport will experience a marked decline in the coming years. The number of people who want to use public transport will decrease, mainly due to the COVID-19 pandemic and people’s fears for their own safety.
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2023, 26(1); 161--184
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in dwelling size preferences in the Poznań housing market
Autorzy:
Bartkowiak, Piotr
Strączkowski, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/27313308.pdf
Data publikacji:
2023
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
housing preferences
changes in housing preferences
local housing market
housing demand
preferencje mieszkaniowe
zmiany preferencji mieszkaniowych
lokalny rynek mieszkaniowy
popyt mieszkaniowy
Opis:
Introduction: Local governments should see striving for a sustainable development of their towns, cities, municipalities and communes as a key policy objective. Achieving that objective requires that the needs and preferences of local communities are properly identified and recognised in various areas, including the housing market – a specific segment of the real estate market that is characterised by its locality and uniqueness, and which serves to accommodate the needs of households, both the basic ones (such as physiological needs, security or belonging) and those higher up the hierarchy (such as esteem or self-actualisation). Aim of the paper: This paper presents data on dwelling size preferences in the local housing market in Poznań, showing that such preferences remained unchanged over 2010-2021. The paper identifies housing affordability as a potential limiting influence on such changes and a factor that may negatively affect the sustainable development of both the city and its population. Materials and methods: The paper uses relevant aggregate data on the real estate market, including those found in publications from Statistics Poland (GUS) and the National Bank of Poland (NBP), and the results of research conducted by the Poznań University of Economics and Business, Department of Investment and Real Estate. Results and conclusions: The results show that the local housing market saw no changes in dwelling size preferences over 2010-2021.On average, dwelling units bought are not big – they have two or three rooms and an area of around 50 sqm. This is caused by relatively low housing affordability in Poznań (too low incomes in relation to dwelling prices), giving rise to concerns regarding proper and sustainable development of local communities going forward.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2023, 168; 25--41
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Consumption-led expansions lead to lower future output growth
Autorzy:
Virén, Matti
Powiązania:
https://bibliotekanauki.pl/articles/2176613.pdf
Data publikacji:
2023-02-28
Wydawca:
Główny Urząd Statystyczny
Tematy:
economic growth
demand management
consumption-led growth
Opis:
When assessing future growth prospects, does the current structure of demand matter, i.e. does it affect the future growth? This question is analysed in our paper using global and EU panel data. The result is quite striking: consumption-led growth - either in terms of private or public or total consumption - is slower than investment-led or exports-led growth. The same qualitative result is obtained irrespectively of the length of the past growth period (lag window), yet the more often the past is characterised by consumption-led growth, the slower the growth rate is in the future. In this context, our research provides important insights for both structural and cyclical policies.
Źródło:
Przegląd Statystyczny; 2022, 69, 3; 44-59
0033-2372
Pojawia się w:
Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contaminants Removal from Real Refinery Wastewater Associated with Energy Generation in Microbial Fuel Cell
Autorzy:
Jabbar, Noor Mohsen
Alardhi, Saja Mohsen
Al-Jadir, Thaer
Dhahad, Hayder Abed
Powiązania:
https://bibliotekanauki.pl/articles/2202351.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
microbial fuel cell
phenol
furfural
power generation
COD
chemical oxygen demand
petroleum refinery wastewater
Opis:
Microbial fuel cells (MFCs) pertain to a kind of modern technology for the direct conversion of chemical energy in organic matter from wastewaters into electricity during the oxidation of organic substrates. A system of continuous MFC was constructed for the treatment of real petroleum refinery wastewater (PRW). The treatment of real PRW, operational performance of the MFC system, biodegradation of furfural, and energy output were investigated in this study. The MFC was inoculated by mixed anaerobic bacteria, with Bacillus sp. as the dominant type, and continuously operated for 30 days. The biodegradation of furfural and phenol, which are the most prevalent toxicants in refinery wastewater, was investigated. The MFC system reached maximum energy outputs of 552.25 mW/m3 and 235 mV. In the anodic chamber, the maximum removal of furfural and phenol was higher than 99%, with biodegradation of organic content reaching up to 95%. This study demonstrated the viability of a continuous-flow MFC system as a green technology for the treatment of furfural-rich real refinery effluents while generating electricity.
Źródło:
Journal of Ecological Engineering; 2023, 24, 1; 107--114
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Keynesowska analiza wpływu inicjalnej zmiany popytu autonomicznego na dochód i produkcję w stanie równowagi
Keynes Analysis of The Impact of The Initial Change in Autonomous Demand on Equilibrium Income and Production
Autorzy:
Sadłowski, Adrian
Powiązania:
https://bibliotekanauki.pl/articles/35051858.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Gdański. Wydział Ekonomiczny
Tematy:
three-sector economy
Keynesianism
aggregate demand
economic adjustment process
economic equilibrium
demand stimulation
gospodarka trzysektorowa
keynesizm
popyt zagregowany
proces dostosowań w gospodarce
równowaga gospodarcza
stymulowanie popytu
Opis:
Celem opracowania jest wyznaczenie na gruncie teoretycznym, o ile zmieni się – zgodnie z logiką podejścia keynesowskiego – poziom produkcji i dochodu w gospodarce trzysektorowej pod wpływem inicjalnej zmiany popytu autonomicznego. Zastosowano metody analizy matematycznej: arytmetyczną, algorytmiczną i geometryczno-algebraiczną. Ich wykorzystanie umożliwiło prześledzenie alternatywnych ścieżek rozumowania i lepsze zrozumienie istoty modelu keynesowskiego, w tym warunków skuteczności zalecanej przez keynesistów ekspansywnej polityki budżetowej.
The aim of the study is to determine, on theoretical grounds, how much – in accordance with the logic of the Keynesian approach – the level of production and income in the three-sector economy will change under the influence of the initial change in autonomous demand. Methods of mathematical analysis were used: arithmetic, algorithmic and geometric-algebraic. Their use made it possible to trace alternative paths of reasoning and better understand the essence of the Keynesian model, including the conditions for the effectiveness of the expansionary budgetary policy recommended by Keynesians.
Źródło:
Współczesna Gospodarka; 2023, 16, 1 (40); 1-9
2082-677X
Pojawia się w:
Współczesna Gospodarka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parking conditions in transport demand management
Autorzy:
Bylinko, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/27313431.pdf
Data publikacji:
2023
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
transport demand management
mobility management
parking policy
zarządzanie popytem na transport
zarządzanie mobilnością
polityka parkingowa
Opis:
Purpose: In today's urban mobility landscape, the increasing number of cars trying to park in the city center is one of the most burdensome problems facing urban transport. Knowing about the impact that individual parking space management strategies and methods - including parking solutions and pricing systems - can have on the efficiency of the urban transport system, may be of key importance for the selection of solutions in this area. This knowledge is the main goal of my research. Design/methodology/approach: The observations and research presented in this article took place in Bielsko-Biala. As part of the research, the effectiveness of actions implementing the city's parking policy was analyzed. The scope of these activities included, first of all, parking fees and the organization of the so-called parking zones in the city. In the case of parking fees, the effectiveness of parking fees was analyzed. The research was mainly a case study. It also had elements of quantitative research - a questionnaire. The effectiveness of parking fees was assessed on the basis of official and up-to-date data on parking fees and the analysis of the ability (ATP) and readiness (WTP) to pay parking fees by their users. Findings: This article presents the way in which regulations, including parking fees in the center and suburbs of Bielsko-Biala, influenced the demand for parking space and thus the mobility of the city's inhabitants. Practical implications: The results presented in the article are the basis for making practical decisions regarding the necessary regulations - in the perspective of the increase in demand for transport in downtown areas - related to parking space. This, in turn, may increase the share of public transport in the transport structure. Originality/value: The available results of empirical research on the relationship between the parking strategy and transport congestion and its consequences are very poor, while the research itself is often hampered by the lack of data systematically collected before and after the introduction of new tools or changes to the already used parking space management tools. The publication analyzes the data collected at the time when new or modified functioning elements of the municipal transport policy were implemented in the city. Indirectly, the author of the article presents evidence for the thesis that negative actions, such as raising parking fees, only allow for limited in time and space effects of actions related to reducing the demand for transport.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2023, 168; 107--118
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł

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