Wyniki wyszukiwania - AGRO

1

Estimates of the energy balance for the coal outburst in laboratory conditions

100%

Topolnicki J.

Bulletin of the Polish Academy of Sciences. Earth Sciences

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1993

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tom 41

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nr 4

2

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Ehnergeticheskaja model' processa ul'trazvukovogo raspylenija v tonkom sloe

88%

Ljashok A., Jakhno O., Lugovskojj A.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2013

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tom 15

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nr 5

3

Effect of crop sequence and chemical plant protection on energy balance of spring barley

88%

Salam T. A.

Fragmenta Agronomica

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1995

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tom 12

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nr 2

4

Comparison of two methods of evapotranspiration calculation

75%

Hurtalova T., Novak V., Matejka F., Sutor J.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1996

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tom 436

The values of the evapotranspiration calculated by the energy balance method were compared with corresponding results obtained by means of the EVASU model. Experimental data were obtained during NOPEX - First Concentrated Field Effort (CFE1). The CFE1 was realized in May-June 1994 in Lövsta, Sweden. The investigated vegetation were grass, spring barley, rye and winter wheat. Taking into account the accuracy of the both compared methods used for calculation of the evapotranspiration, the obtained results can be considered as very close in the interval of evapotranspiration rates between values 0.1 mm h⁻¹ and 0.5 mm h⁻¹.

5

Vyuziti hodnoceni klidoveho energetickeho vydeje u vybranych nutricnich stavu. Cast I: hodnoceni klidoveho energetickeho vydeje sportovce jako vychodisko odhadu utilizace a obratu zakladnich energetickych substratu

75%

Martinik K., Fiala Z., Fialova D., Ryba J., Komestik B.

Żywienie Człowieka i Metabolizm. Suplement

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2000

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tom 27

6

Research into the energy balance of a standal one photovoltaic tracking system

75%

Sarniak M.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2013

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tom 13

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nr 1

7

Energy balance of the convection drying systems in agricultural and food industry

75%

Prvulovic S., Tolmac D.

Annual Review of Agricultural Engineering

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2009

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tom 07

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nr 1

8

Biogas production from maize grains and maize silage

75%

Hutnan M., Spalkova V., Bodik I., Kolesarova N., Lazor M.

Polish Journal of Environmental Studies

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2010

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tom 19

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nr 2

323-329

The main objective of this work was anaerobic digestion of maize grains and maize silage and biogas production from these crops. Maize grains were treated using one-stage and two-stage anaerobic techniques; using hydrolysis and acidification as the first stage and methanogenesis as the second stage. Processing nonacidified maize grains in an anaerobic reactor is more stable, though the anaerobic degradation start-up period is longer, specific production of biogas is lower and excess sludge production is higher as from acidified maize grains. Maximum specific biogas production was 0.72 m³・kg⁻¹ of volatile suspended solids – VSS (nonacidified maize) (at 35℃) and 0.770 m³・kg⁻¹ VSS (acidified maize) during anaerobic digestion of maize grains. At average yield of 9 t・ha⁻¹ of dry maize 5,450 Nm³・ha⁻¹ of methane can be generated from nonacidified maize and 5,828 Nm³・ha⁻¹ methane from acidified maize grains. Due to low nitrogen content in maize silage, anaerobic digestion of maize silage is rather unstable. Alkali or complementary substrates with higher nitrogen content (e.g. excess sludge from wastewater treatment plant or manure) can be used for anaerobic process stabilization. Maximum measured biogas specific production from maize silage reached 0.655 m³・kg⁻¹ VSS. At average yield of 30 t・ha⁻¹ of the dry maize silage 9,058 Nm³・ha⁻¹ of methane can be generated.

9

Soil moisture as a factor affecting the phytoclimate

75%

Matejka F.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1996

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tom 436

A mathematical model of interrelations between plant canopies and the atmospheric boundary layer was developed to quantify the influence of changes in soil moisture on the air temperature and humidity in the surface layer of the atmosphere. The verification of the model was carried out using experimental data concerning the maize canopy. It was shown that the soil moisture in the root zone is an important factor affecting not only the evapotranspiration but also the structure of the energy balance of plant canopies and consequently the air temperature and humidity in the surface layer of the atmosphere.

10

Investigation of heating time of a bundle of steel bars

75%

Aghbalyan S., Bagdasaryan V., Wyczolkowski R.

Acta Scientiarum Polonorum. Architectura

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2022

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tom 21

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nr 3

11

Estimation of energy demand in a territorial government unit - methodological problems

75%

Kowalczyk-Jusko A., Koscik B.

Economic and Regional Studies

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2017

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tom 10

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nr 3

Subject and purpose of work: The aim of the study is to identify methodological problems, which may be encountered during the preparation of the energy balance of a territorial unit, along with indications of ways to solve them. Materials and methods: Problems were identified during the preparation of the energy balance for two selected rural communes and then they were investigated with reference to the literature on this subject. Results: Estimating the energy demand of a local government unit requires proper identification of the groups of energy consumers, divided into facilities owned or co-owned by communes and ones independent from commune authorities. The latter group is divided further, into households, businesses, farms. For each of the users different methods of obtaining data may be needed: a survey and analysis of statistical data, analysis of financial documents, evaluation of the buildings’ age. Generally, however, preparing an energy balance statement requires many simultaneous approaches, and the combination of multi-criterion analysis provides the most reliable picture of the problem. Conclusions: The scope of the data needed to compile an energy balance statement for local government units, depends on the purpose of the developed analysis. Methodological handbooks and training materials on this subject are helpful, but the developed methodologies may need to be modified and adapted to specific conditions.

12

Tide distribution and tapping into tidal energy

75%

Kowalik Z.

Oceanologia

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2004

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tom 46

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nr 3

13

Modelling of energetical balance of honey bee wintering generation

75%

Stalidzans E., Krauze A., Berzonis A.

Pszczelnicze Zeszyty Naukowe

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2000

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tom 44

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nr 2

14

Analysis of organic and conventional farming system - a case study

63%

Valtyniowa S., Kren J.

Acta Agrophysica

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2008

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tom 11

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nr 1[156]

15

An attempt at assessing feeding habits of 24-hours energy balance of selected population of young kayakers

63%

Hyzyk A. K., Romankow J., Pawlaczyk-Wroblewska E.

Electronic Journal of Polish Agricultural Universities. Series Food Science and Technology

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2005

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tom 08

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nr 4

16

Energy balance of a prosument microinverter on-grid photovoltaic system

63%

Sarniak M.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2014

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tom 14

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nr 3

17

Elements of the draught vehicle kinematical model theory

63%

Petrov L., Yakovenko A., Chumak O., Tanas W.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2007

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tom 07

18

Energy consumption in the motion of the vehicle with electric propulsion

63%

Tarkowski P., Siemionek E.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2011

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tom 11C

19

Field-scale intercomparison analysis of ecosystems in partitioning surface energy balance components in a semi-arid environment

63%

Sridhar V., Billah M. M., Valayamkunnath P.

International Journal of Ecohydrology and Hydrobiology

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2019

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tom 19

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nr 1

20

Overview of technological methods of energy production from biomass

63%

Kowalska A.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2010

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tom 10

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