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Tytuł:
Ocena ewapotranspiracji rzeczywistej użytków zielonych na podstawie plonu aktualnego
Evaluation of actual grassland evapotranspiration based on current yield
Autorzy:
Szajda, J.
Powiązania:
https://bibliotekanauki.pl/articles/339440.pdf
Data publikacji:
2006
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
ewapotranspiracja rzeczywista
plon aktualny
użytki zielone
actual evapotranspiration
actual yield
grasslands
Opis:
Wyniki badań lizymetrycznych ewapotranspiracji rzeczywistej ET i plonów łąki 3-kośnej (nawożonej w ilości 270, 540, 660 kg NPK·ha-¹ w czystym składniku), łąki 6-kośnej (nawożonej 660 kg NPK·ha-¹) i systematycznie ciętej runi (270 kg NPK·ha-¹), prowadzonych w latach 1974-1990 na Polesiu Lubelskim, dowodzą, że na kształtowanie się rzeczywistych wartości ET istotny wpływ ma plon aktualny q, czyli ilość powietrznie suchej masy roślinnej jaka urosła od początku przyrostu do danej chwili. Określone w pracy zależności ET = f(q) w okresach IV-V, VI-VII, VIII-IX mogą być wykorzystane do oceny rzeczywistych wartości ET użytków zielonych na podstawie mierzonego, obliczonego lub szacowanego plonu aktualnego q.
Results of lysimetric studies on actual evapotranspiration ET and final yields Q of a meadow (fertilised with 270, 540 and 660 kg NPK·ha-¹ in pure component), pasture (fertilised with 660 kg NPK·ha-¹) and systematically cut sward (270 kg NPK·ha-¹) carried out in the period 1974-1990 in Polesie Lubelskie showed that the actual ET was significantly influenced by current yield q, i.e. the amount of air dry plant mass that grew from the onset of growth to a given date. Relationship ET = f(q) determined in the present study for the periods April-May, June-July, Aug-Sept can be used to evaluate the actual ET values for grasslands on the basis of current levels of yield q measured, calculated or estimated.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2006, 6, 1; 403-412
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model rekonstrukcji aktualnego znaczenia interjęzykowych lakun w oparciu o paradygmat dyskursologiczny
Autorzy:
Miłosz-Szewczyk, Karolina
Powiązania:
https://bibliotekanauki.pl/articles/2141905.pdf
Data publikacji:
2022-06-30
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
interlingual lacuna
actual meaning
discourse
Opis:
This paper presents a model for the reconstruction of the actual meaning of interlingual lacunas. Lacunas as lexical units, present in one culture and absent in another, that hinder the reception of texts and cause difficulties in translation. The clarification of their meaning is possible by analysing the discursive contexts and the discourse fragments in which they occur. Based on the discourse paradigm, a model for the reconstruction of the actual meaning has been developed that consists of individual stages of analysis. According to the assumptions of the proposed model, the case study reconstructs the actual meaning of the lacuna Drachenfutter in German.
Źródło:
Acta Neophilologica; 2022, 2, XXIV; 97-110
1509-1619
Pojawia się w:
Acta Neophilologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration Remote Sensing and Meteorological Data to Monitoring Plant Phenology and Estimation Crop Coefficient and Evapotranspiration
Autorzy:
Hassan, Diaa Fliah
Abdalkadhum, Aysar Jameel
Mohammed, Rafal J.
Shaban, Amin
Powiązania:
https://bibliotekanauki.pl/articles/2086414.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
actual evapotranspiration
crop coefficient
remote sensing
vegetation index
Opis:
The water requirements of the wheat crop are represented by the actual evapotranspiration, which depends on the meteorological data of the study area and the amount of water consumed during the season. Estimation of crop coefficients (Kc) and evapotranspiration (ETc) using remote sensing data is essential for decision-making regarding water management in irrigated areas in arid and semi-arid large-scale areas. This research aims to estimate the crop coefficient calculated from remote sensing data and the actual evapotranspiration values for the crop. The FAO Penman-Monteith equation has been used to estimate the reference evapotranspiration from meteorological data. Linear regression analysis was applied by developing prediction equations for the crop coefficient for different growth stages of comparing with the vegetation cover index (NDVI). The results showed that (R2 = 0.98) between field crop coefficient and crop coefficient predicted from (Kc = 2.0114 NDVI-0.147) in addition to (RMSE = 0.92 and (d = 0.97).
Źródło:
Journal of Ecological Engineering; 2022, 23, 4; 325--335
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Road Construction Projects Price Changes in the Selected Phases of their Life-Cycle
Autorzy:
Korytárová, Jana
Hanák, Tomáš
Powiązania:
https://bibliotekanauki.pl/articles/35550017.pdf
Data publikacji:
2022
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
road construction project
LCC
estimated value
contract price
actual price
Opis:
This paper deals with an analysis of causes that lead to the change in price (value of construction costs) of road infrastructure projects in selected phases of the building structure life-cycle, more specifically procurement and construction phases, with the aim to refine the price estimation in the Estimated Value determination phase. The sample of regional road construction projects in the South Moravian Region (Czech Republic) documentation forms the basis for the research. The methodological procedure is aimed at monitoring changes in the value of construction costs during the preparation and implementation phase of the construction. Estimated values, contract prices and actual prices of individual projects are compared to determine them and the reasons for their differences are discussed. The changes (decrease) in the values of construction costs determined by estimated value and contract price show the strong influence of the construction market and the interest of construction companies in the implementation of public works contracts in the field of road infrastructure projects. The relative differences range up to 47%. The changes (increase) in construction costs determined by contract price and actual price are much lower, up to 13%, and result from specific situations during the implementation of the construction, for which subsoil bearing capacity problems and material changes were determined as the most significant.
Źródło:
Scientific Review Engineering and Environmental Sciences; 2022, 31, 1; 37-46
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Subjective and Objective Workload on Asthenopia at VDU Workplaces
Autorzy:
Studeli, T.
Menozzi, M.
Powiązania:
https://bibliotekanauki.pl/articles/90214.pdf
Data publikacji:
2003
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
asthenopia
actual asthenopic complaints
actual psychological strain
workload
customer call center
stock broker
astenopia
zaburzenia widzenia
komputer
obciążenie pracą umysłową
praca przy komputerze
Opis:
An ergophthalmological tool has been developed to investigate effects of subjective and objective workload on work-related visual complaints (asthenopia). In field studies on different visual display unit (VDU) workplaces effects of objective and subjective workload, work intensity, and work breaks (5–9 min/hour) could be found. It could be shown that during the first hours of VDU work, asthenopic complaints have the tendency to follow effective workload. With increasing working time the effect of a general and visual fatigue overlaps other reported visual complaints in the majority of cases.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2003, 9, 4; 441-451
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Instytucje realnego zbiegu przestępstw w znowelizowanym kodeksie karnym
Autorzy:
Sławomir, Żółtek,
Powiązania:
https://bibliotekanauki.pl/articles/903098.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
actual concurrence of offences
aggregation of penalties
course of offences
Opis:
This article is dedicated to the amended regulations of Chapter IX of the Penal Code concerning the concurrence of offences and aggregation of penalties and penal measures. The problem of the new definition of actual concurrence is presented and discussed while contrasting it with the concept of apparent concurrence in this respect. Within the framework of changes to the aggregation of penalties, wider attention is given to the new model of aggregation of penalties which takes into consideration the previously imposed cases of aggregation of penalties, exceptions to it, and also directives on sentencing. It was noted „course of offences” changes based on introducing the premise of „in a similar manner” in place of „similar manner of committing” an offence that constitute the course and also the stipulations added to art. 91 § 1 of the Penal Code that „the court shall impose one penalty on the basis of the provision whose attributes each of these offences”.
Źródło:
Studia Iuridica; 2016, 65; 159-173
0137-4346
Pojawia się w:
Studia Iuridica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of conventional and satellite data for estimation of evapotranspiration spatial and temporal pattern
Autorzy:
Struzik, P.
Kępińska-Kasprzak, M.
Powiązania:
https://bibliotekanauki.pl/articles/108470.pdf
Data publikacji:
2016
Wydawca:
Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:
reference evapotranspiration
actual evapotranspiration
remote sensing
Penman-Monteith method
Wielkopolska Region
Opis:
Evapotranspiration values (ET) are crucial for agriculture where estimates of water reserves available for crops are the basis for scheduling the time and intensity of irrigation, yield prognoses, etc. Detailed evapotranspiration data are, therefore, of essential value. However, stations performing direct measurements of evapotranspiration are very scarcely distributed in Poland, and for this reason the interpolation of data is necessarily biased. Hence, evapotranspiration values are calculated using indirect methods (usually empirical formulas). Data from geostationary meteorological satellites are used operationally for the determination of evapotranspiration with good spatial and temporal resolution (e.g. Land-SA F product). The study of the relation between evapotranspiration values determined with the use of satellite data and those calculated using the Penman-Monteith formula was performed for the study area in Poland. Daily values and cumulated (i.e. decadal, monthly and yearly) values were analysed to determine the quality and possible added value of the satellite product. The relation between the reference ET and actual ET in two consecutive years was discussed, both for the whole test area and for individual stations, taking into account land use and possible water deficit in the root zone, represented by H-SA F (EUMETSA T Satellite Application facility supporting Operational Hydrology and Water Management) soil wetness index product. The differences are presented and discussed.
Źródło:
Meteorology Hydrology and Water Management. Research and Operational Applications; 2016, 4, 2; 3-13
2299-3835
2353-5652
Pojawia się w:
Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Fast Fourier Transform (FFT) in the Analysis of a Welding Current Instantaneous Values Waveforms during Welding with a Covered Electrode
Zastosowanie szybkiej transformaty Fouriera (FFT) do analizy przebiegów wartosci chwilowych natężenia prądu spawania przy spawaniu elektrodą otuloną
Autorzy:
Słania, J.
Ślązak, B.
Fidali, M.
Powiązania:
https://bibliotekanauki.pl/articles/353923.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
welding stability
arc welding
actual welding signals
spawanie
spawanie łukowe
spawalnictwo
Opis:
The article presents the process of production of coated electrodes and their welding properties. The factors concerning the welding properties and the currently applied method of assessing are given. The methodology of the testing based on measuring and recording of instantaneous values of welding current and welding arc voltage is discussed. The article presents the application of Fast Fourier Transform (FFT) for the analysis of instantaneous values of welding current and welding arc voltage. The results of coated electrodes welding properties are compared. Finally the conclusions drawn from the research are presented.
Omówiono proces produkcji elektrod otulonych oraz ich wymagane właściwości spawalnicze. Przedstawiono wskaźniki właściwości spawalniczych oraz stosowaną dotychczas metodykę oceny. Omówiono metodyką badań polegającą na pomiarze i rejestracji wartości chwilowych natężenia prądu spawania i napięcia łuku spawalniczego. Przedstawiono sposób wykorzystania Szybkiej Transformaty Fouriera (FFT) do analizy wartości chwilowych natężenia prądu spawania i napięcia łuku spawalniczego. Zestawiono wyniki badań właściwości spawalniczych elektrod otulonych. Zaprezentowano wnioski z wykonanych badań.
Źródło:
Archives of Metallurgy and Materials; 2014, 59, 2; 569-573
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The relationship between language anxiety and the actual and perceived levels of foreign language pronunciation
Autorzy:
Baran-Łucarz, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/780485.pdf
Data publikacji:
2011-12
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Langauge anxiety
actual pronunciation level
perceived pronunciation level
pronunciation self-assessment
accentedness
Opis:
The construct of anxiety has been captivating the interest of SLA researchers for a long time. Numerous observations show that most individuals experience anxiety when learning a foreign language (FL) and using it, both in classroom and real-life contexts, though to a different extent. An analysis of studies conducted on language anxiety (LA) throughout several decades (Horwitz, 2010) shows that researchers have focused, first and foremost, on examining the nature, symptoms and consequences of being anxious, proving its detrimental effect on FL and L2 learning and performance. However, the causes of LA seem to have been less thoroughly explored. The paper reports on a study investigating whether the actual level of FL learners’ pronunciation and the pronunciation level perceived by students can be considered significant sources of anxiety. It is hypothesized that both pronunciation levels are related to LA, with the latter being a more important determinant of LA than the former. To measure the subjects’ degree of anxiety, the Foreign Language Classroom Anxiety Scale (Horwitz, Horwitz, & Cope, 1986) was applied. The actual level of pronunciation was diagnosed with the use of a Pronunciation Test, consisting of a Perception Test and two Production Tests (word and passage reading). The perceived pronunciation level of the participants was measured with a questionnaire designed for the purpose of this research. The Pearson moment-correlation proved LA to be significantly correlated with both levels of pronunciation, with the relationship being more meaningful in the case of the perceived FL pronunciation level.
Źródło:
Studies in Second Language Learning and Teaching; 2011, 1, 4; 491-514
2083-5205
2084-1965
Pojawia się w:
Studies in Second Language Learning and Teaching
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oszacowanie rzeczywistej liczby ludności gmin województwa mazowieckiego z wykorzystaniem danych ZUS
Estimation of the actual population of communes in the Mazovia voivodship using the data of the social insurance institution (ZUS)
Autorzy:
Śleszyński, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/418236.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
population statistics
population registration
the actual number of residents
population estimation
Mazovia voivodship
Opis:
The article presents the problem of lack of compliance with population registration requirements, in relation to the factual place of residence. This problem persists in Poland due to the reliance of official statistics on the data on current registrations, and also due to adoption of the legal, rather than factual definition of residence. To estimate the extent of this phenomenon for Mazovia voivodship, the data of the Social Insurance Institution (ZUS) are used, which enable a comparison of the addresses of permanent residence with the address for correspondence of the insured persons. Depending on the age group, the identified differences were quite high, especially for the most mobile ages (e.g. over 9% for people aged 27 years). Spatial concentration was also shown, especially with respect to underestimation of the true population of Warsaw and its suburban areas, and overestimation for peripheral regions. In many communes the problem of non-compliance with registration requirements concerns over 10% of the registered population. This limits the scope of demographic analyses, especially in the context of their practical applications and population projections
Źródło:
Studia Demograficzne; 2011, 2(160); 35-58
0039-3134
Pojawia się w:
Studia Demograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formy działania jednostek samorządu terytorialnego w odniesieniu do pieczy zastępczej
Forms of local government in relation to foster care
Autorzy:
Szwaja, Jacek Z.
Powiązania:
https://bibliotekanauki.pl/articles/528584.pdf
Data publikacji:
2012
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Tematy:
foster care
the local government
the form of action
legal action
actual action
Opis:
Local government units are legally obliged to carry out a number of tasks in the foster care system for children. These tasks generally referred to the Family and Guardianship Code specifies support for families and foster care system. The proper execution of these tasks requires appropriate forms of action. The paper presents: the type and form of tasks as well as and the legal action and actual actions taken in the field by the various local government units.
Źródło:
Państwo i Społeczeństwo; 2012, 3; 7-15
1643-8299
2451-0858
Pojawia się w:
Państwo i Społeczeństwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal comfort assessment in the modern passenger car under actual operational conditions
Autorzy:
Dębska, Luiza
Krawczyk, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/23966925.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
rzeczywiste warunki eksploatacyjne
komfort termiczny
samochód osobowy
thermal comfort
passenger car
actual operating conditions
Opis:
People’s ever-increasing needs encourage designers of various vehicles to search for solutions that will provide the most comfortable internal environment conditions. Currently, partly due to the COVID-19 threat, many people use their individual cars to travel to work, college, shops, trips, and holidays. Proper internal air parameters that need to be maintained in vehicles are critical in the sum-mer. The article discusses the thermal comfort of four passengers of a modern car produced in 2017to verify if contemporary production technology can successfully meet the thermal needs of people under actual conditions in the Polish climate. For this purpose, five temperature values were tested:20oC, 22oC, 24oC, 26oC, and 28oC for the car located in the shade and sun. In addition, the Testo 400meter was used to control and measure the internal parameters, and questionnaires were used to find out about the thermal impressions of the respondents. The research was carried out in July when the air temperature in Poland was high
Źródło:
Production Engineering Archives; 2023, 29, 2; 140--146
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spis ludności i prawda
Population Census and Truth
Autorzy:
Gołata, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/418269.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
register-based census
non-sampling errors
permanent, resident and actual population census coverage survey
Opis:
The article discusses the quality of population census data – information obtained in the oldest, largest and most famous statistical surveys. In particular, the quality assessment of census data refers to the Polish experience. The article aims to propose an integrated approach to censuses, based on administrative records and sample surveys. Despite a long tradition, as well as a well-developed research methodology, censuses do not provide ‘perfect’ results. First of all, the census as a comprehensive study may be burdened with non-random errors. Taking into account all the different methods for conducting censuses, including the traditional method, using data from administrative records with sample surveys and the mixed method, different sources of error are analyzed. The study also attempts to define the census population in the light of international standards concerning usual residents, permanent residents and actual residents, with the resulting consequences. Sources of errors, methods of their identification and elimination are discussed. Particular attention is paid to coverage errors, which are illustrated by examples from Polish censuses. The results of previous studies assessing the quality of administrative records, which were conducted in preparation for 2011 Population Census, are taken into account. Evaluation of population censuses is traditionally carried out based on the results of post-census surveys. In the UK, the results of the Census Coverage Survey are the basis for estimating the degree of underenumeration in 2001 Census. Polish experiences in this field are rather limited. The discussion also includes harmonization problems, particularly the danger of divergent results and estimates, in terms of several data sources. In this regard, the British One Number Census project is presented. The idea of the project was to reduce the population underestimate and provide outputs which would be consistent in cross-section of territorial units in the regional and at a national level.
Źródło:
Studia Demograficzne; 2012, 161, 1; 23-55
0039-3134
Pojawia się w:
Studia Demograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nieskończoność w matematyce. Zmagania z potrzebnym, acz kłopotliwym pojęciem
Infinity in mathematics. Struggles with a necessary but troublesome concept
Autorzy:
Murawski, Roman
Powiązania:
https://bibliotekanauki.pl/articles/690822.pdf
Data publikacji:
2014
Wydawca:
Copernicus Center Press
Tematy:
actual infinity
potential infinity
set theory
infinitely small
infinitely large
cardinal number
ordinal number
Opis:
Infinity has appeared in mathematics since the very beginning. Moreover the mathematical concept of infinity was and is connected with philosophical and theological concepts. The aim of the paper is to show how mathematicians struggled with this concept and how they tried to bring it under control.
Źródło:
Zagadnienia Filozoficzne w Nauce; 2014, 55; 5-42
0867-8286
2451-0602
Pojawia się w:
Zagadnienia Filozoficzne w Nauce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of pressure drop on the working volume of a hydraulic motor
Autorzy:
Śliwiński, Pawel
Powiązania:
https://bibliotekanauki.pl/articles/2200940.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
theoretical working volume
actual working volume
hydraulic motor
satellite
motor
volumetric efficiency
mechanical efficiency
Opis:
Reliability and maintenance analysis of hydraulic positive machines basicly focused on the processes of their wear and failure. But in order to correctly assess the mechanical and volumetric efficiency of a hydraulic motor, both at the stage of development research or at the stage of control tests during its exploitation, the working volume of this motor must be correctly determined. Therefore this paper proposes a new method of assessment of the size of the working volume of a hydraulic motor. It has been shown that the hydraulic motor absorbency per one revolution of this motor shaft is a non-linear function of pressure drop in working mechanism of the motor and non-linear function of motor rotational speed. Thus the relation between the working volume of a hydraulic motor and the pressure drop in the motor working mechanism is a non-linear function. This working volume as a funcition of pressure drop has been called the actual working volume. The correctness of the proposed method was confirmed experimentally.
Źródło:
Eksploatacja i Niezawodność; 2022, 24, 4; 747--757
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 97

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