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Wyszukujesz frazę "Shevchuk, V." wg kryterium: Autor

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    Wyświetlanie 1-8 z 8
    Tytuł:
    Matematicheskaja model' razdavlivanija semjan maslichnykh kul'tur
    Mathematical model of seeds crush of oil-bearing crops
    Autorzy:
    Shevchuk, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/76328.pdf
    Data publikacji:
    2015
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    seed
    crushing machine
    compression
    seed deformation
    destruction
    energy consumption
    mathematical model
    Źródło:
    Motrol. Motoryzacja i Energetyka Rolnictwa; 2015, 17, 4
    1730-8658
    Pojawia się w:
    Motrol. Motoryzacja i Energetyka Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling of agricultural import demand in Ukraine
    Autorzy:
    Shevchuk, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/94837.pdf
    Data publikacji:
    2014
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    agricultural import
    Kalman filter
    exchange
    rate effects
    price and income effects
    filtr Kalmana
    efekty kursowe
    cena
    efekty dochodowe
    Opis:
    Based on the monthly data from four aggregated agricultural sectors for the 2001−2014 period, this paper investigates the determinants of demand for agricultural imports in Ukraine by using the time-varying parameter technique (the Kalman filter). The outcome suggests that the real exchange rate depreciation contributes to a lower demand for meat, fish and dairy products; vegetable oil and foodstuffs, while not affecting demand for wheat and vegetables. Domestic industrial output correlates with a higher demand for all four groups of agricultural imports. Import substitution effect of domestic agricultural production is found for three out of four groups of agricultural imports, except meat, fish and dairy products. Following an increase in international prices, there is a decrease in demand for wheat and vegetables, as well as for foodstuffs, while there is an opposite effect in demand for other groups, i.e. meat, fish and dairy products and vegetable oil.
    Źródło:
    Information Systems in Management; 2014, 3, 3; 201-211
    2084-5537
    2544-1728
    Pojawia się w:
    Information Systems in Management
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling of price and income effects on Ukraine’s agricultural export growth
    Autorzy:
    Shevchuk, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/94757.pdf
    Data publikacji:
    2013
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    agricultural exports
    error-correction model
    exchange rate effects
    price and income effects
    eksport rolny
    model korekty błędów
    efekty kursowe
    Opis:
    Using monthly data for the 2001─2013 period, this paper applies Error- Correction Model (ECM) to estimate export demand effects for Ukraine’s agricultural commodities and foodstuffs. According to our results, the long-run exchange rate sensitivity of export demand seems to be rather weak, whereas the domestic income effect is high enough across all four groups: (i) meat, fish and dairy products; (ii) wheat and vegetables; (iii) vegetable oil and (iv) foodstuffs. No evidence is found of the long-term relationship between agricultural exports and foreign trade-partner industrial output. However, both exchange rate and foreign output are established to strongly affect the demand for agricultural exports in the short-run. Also, there is evidence of a speedy short-run adjustment for all groups of agricultural exports to their long-run relationships.
    Źródło:
    Information Systems in Management; 2013, 2, 3; 214-226
    2084-5537
    2544-1728
    Pojawia się w:
    Information Systems in Management
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling of exchange rate effects and complimentaries between agriculture and industry in Ukraine
    Autorzy:
    Shevchuk, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/94973.pdf
    Data publikacji:
    2016
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    agriculture
    industry
    nominal exchange rate
    Ukraine
    Opis:
    This paper examines links between the exchange rate, agricultural and industrial outputs in Ukraine. This is estimated using monthly data for the 2001−2015 period. Results provide evidence that there is a positive spillover from agriculture to industry, being in line with modern arguments on the role of agricultural sector in economic growth (infrastructural spillovers, rural income effects, provision of resources for an industrialized economy). However, industrial output squeezes out agricultural production in the short run. Depreciation of the nominal (real) exchange rate has an expansionary effect on industrial output, but it is harmful for agriculture. From a policy perspective, the results suggest that agriculture-supporting policies should be productive in the industrialization context either.
    Źródło:
    Information Systems in Management; 2016, 5, 3; 401-412
    2084-5537
    2544-1728
    Pojawia się w:
    Information Systems in Management
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Technique of designing of releasable threaded connections of autotractor technics
    Autorzy:
    Kuzmin, A.
    Shevchuk, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/244187.pdf
    Data publikacji:
    2009
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    thread joints of tractors
    designing
    fatigue damages
    accelerated tests
    special thread
    Opis:
    The analysis of work of joints of tractors of models DT-YT allows to make the conclusion about presence of breakages because of low constructive strength and not correct definition of parameters of details. Probes of breakages of joints shows that today at designing of joints there is no system of the account of a mode of behavior and joint life cycle. Designing of threaded connections of automobile and tractor technics should be carried out taking into account modes and duration of operation of the car on these modes. Designing of threaded connections is carried out taking into account operation and life cycle modes. It is offered to carry out calculation taking into account accumulation of fatigue damages to a current of set time of operation. For definition of parameters of fatigue strength the technique of the accelerated tests is offered. The technique allows to define parameters of fatigue strength which it is necessary to use in calculations threaded connections. In work probes of a tension of joint of a driving wheel of a Caterpillar, are resulted by a method of the is finitely-element analysis. For probes settlement models are offered and tested. Settlement models allow to simplify construction of geometrical model for use in computer programs and calculations. Using the described technique of designing it is developed construction a retainer screw with a special thread.
    Źródło:
    Journal of KONES; 2009, 16, 1; 297-306
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling of fiscal policy effects on agriculture and industry in Ukraine
    Autorzy:
    Shevchuk, V.
    Kopych, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/95019.pdf
    Data publikacji:
    2017
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    agriculture
    industry
    fiscal policy
    nominal exchange rate
    real exchange rate
    Ukraine
    Opis:
    This paper analyses the effects of fiscal policies upon agriculture and industry in Ukraine, with the SVAR model using quarterly data for the 2001–2016 period. The results indicate a positive effect of the government spending on both agricultural production and industrial output, while an increase in the government revenue is of the same expansionary impact for the latter only. Among other results, there is a weak negative short-lived spillover from agriculture to industry, with no causality running on the reverse. As agricultural production in Ukraine is associated with a higher level of government spending in the short run, a direction of causality seems to be just the opposite for industrial output. Both agriculture and industry bring about higher budget revenues in the short run, but for the latter this effect is lagged and more persistent. Controlling for fiscal policy effects, the nominal (real) exchange rate depreciation seems to be expansionary for industrial output. For agriculture, a nominal exchange rate depreciation is restrictionary in the short run, with an expansionary effect in the long run (however, this result is not supported in specification with the real exchange rate). Several implications of fiscal policy effects are discussed.
    Źródło:
    Information Systems in Management; 2017, 6, 2; 131-142
    2084-5537
    2544-1728
    Pojawia się w:
    Information Systems in Management
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Educational effects on the labor market in Poland: data analysis and modelling
    Autorzy:
    Żyra, J.
    Shevchuk, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/95145.pdf
    Data publikacji:
    2012
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    unemployment
    educational mismatch
    higher education
    2SLS and VAR estimates
    career path monitoring
    bezrobocie
    edukacja wyższa
    monitorowanie ścieżki kariery
    Opis:
    Although a higher student enrollment in Poland is a pro-growth factor, it is not ruled out that it contributes to a higher unemployment through one of three channels such as: (i) negative productivity effects, (ii) excessive administrative regulations, (iii) educational mismatches. In turn, educational mismatches could be a result of the “wrong” field of study choice, lack of proper competences (skills) or over-education. Our study reveals that the expansion of students on humanities, economics/business and engineering fields of study could be one of the reasons behind higher unemployment rate, but this is not the case for science/mathematics studies. The most important aspects of modeling of labor market educational effects are discussed in the context of the graduates career path monitoring project.
    Źródło:
    Information Systems in Management; 2012, 1, 3; 245-257
    2084-5537
    2544-1728
    Pojawia się w:
    Information Systems in Management
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Electrical Charge Transfer in Complex Oxides
    Autorzy:
    Shevchuk, V.
    Kayun, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/1550460.pdf
    Data publikacji:
    2010-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    72.20.-i
    72.80.-r
    77.22.Gm
    77.84.-s
    Opis:
    The electrophysical properties (temperature-frequency dependence of conductivity and dielectric constant, current of depolarization) of complex oxide single crystals (Ca-Ga-Ge-garnet, Ca-Ga-germanate, Pb-, Ca-, Cd-tungstates) are analyzed. The experimental results for different crystallographic axes were obtained in the frequency range 10-$10^{5}$ Hz and temperature range 290-650 K. The main parameters of conductivity and depolarization currents are determined. The nature of polarization charge induced by applied external field is discussed using the model of polarization at hopping exchange of charge between complex dipolar defects and space-inhomogeneous distribution of charge in the sample. Existence of small polarons in the crystals is considered.
    Źródło:
    Acta Physica Polonica A; 2010, 117, 1; 150-154
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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