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Calculation of the photosynthetic quotient (pq) in the Gulf of Gdansk (southern Baltic)

100%

Wielgat-Rychert M., Rychert K., Witek Z., Zalewski M.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2017

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tom 21

The photosynthetic quotient (PQ) is defined as the molar ratio of oxygen released to the carbon dioxide assimilated during photosynthesis. Calculation of correct PQ values of natural phytoplankton populations is crucial for understanding of carbon budgets but often result in values that differ highly from the expected stoichiometric proportions of photosynthetic products. In the present study, measurements of primary production, that is, CO2 assimilation, performed with the standard isotopic method (14C) and oxygen release estimated during photosynthesis with the light-and-dark bottle method were compared to calculate PQ in the southern Baltic (Gulf of Gdańsk, Poland). The PQ average was 1.28 (ANOVA; F = 872; R2 = 0.92; n = 77; p < 0.001). Neither nitrogen source nor phytoplankton composition was noted to impact PQ values. Very high PQ values in the lower range of production rates (that cannot be explained by the stoichiometric proportion of photosynthesis products) were interpreted as artifacts related to the lower sensitivity of the oxygen method compared to that of the 14C method.

2

Vlijanie sootnoshenijj geometricheskikh parametrov upakovok na pokazatel' udel'nojj poverkhnosti

88%

Semenov A.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2015

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tom 17

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nr 5

3

Teoreticheskoe obosnovanie rascheta zven'ev cepi konvejjera iz polimernykh kompozicionnykh materialov

88%

Tkachuk V., Devin V.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2016

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tom 18

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nr 5

4

Potassium balance at some farms in Poland

88%

Labetowicz J., Majewski E., Rutkowska B., Szulc W., Kalwara A.

Journal of Elementology

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2005

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tom 10

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nr 4 Suppl.1

58

5

Calculation scheme of the oscillatory system "manual vibro-shock shaker the fruit spur"

88%

Shevchuk R., Krupych R.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2017

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tom 19

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nr 4

6

Thermal field's calculation of cylindrical inductor loaded by a bundle of ferromagnetic rods

88%

Berezyuk A. O., Kondratenko I. P., Rashhepkin A. P.

Annals of Warsaw University of Life Sciences - SGGW. Agriculture

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2013

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nr 62 Agric.Forest Eng.

In this paper the combined method of calculating thermal and electromagnetic fields of a cylindrical inductor, which is loaded by a bundle of ferromagnetic rods, has been developed. The method is based on the analytical solution of the electromagnetic characteristics and 2-D (FEM) simulation of the allocation of temperature fields by finite element method. It was found that the steady state of the inductor, which has the installed capacity of 4.5 kW, comes in 350—100 s. after heating, the maximum temperature of the rods in the central zone is 68°C, the temperature of the heated material - 48°C, which satisfies the technological process of heating the seeds before removing oil.

7

Evaluation of methods for soil thermal conductivity calculations

88%

Usowicz B.

International Agrophysics

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1995

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tom 09

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nr 2

8

Theoretical studies and calculations of wastewater treatment in trickling biofilters

75%

Kolpakova O.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2015

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tom 17

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nr 8

9

Raschet i vybor perekhodnykh posadok

75%

Ivanov G., Polyansky P.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2013

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tom 15

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nr 2

10

Deriving a reliable CPT cone resistance value for end-bearing capacity calculation of piles

75%

Bogusz W.

Acta Scientiarum Polonorum. Architectura

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2016

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tom 15

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nr 2

The necessity of optimising the foundation design encourages the use of methods based on in situ test results in the design of pile foundations. For this purpose, a cone penetration test (CPT) is commonly used. Design methods developed over the last few decades may differ not only in factors used for correlating the cone resistance with bearing capacity of a given type of pile foundation, but also in adoption of the representative cone resistance value for the calculations. Contrary to the design of pile foundation in relatively homogeneous ground conditions, in the case of heterogeneous stratifi cation, the infl uence of the quality of test itself and the adoption of the average cone resistance for the calculation may have significant impact on the result. This is especially important issue when weaker strata, which may affect the end-bearing capacity, is present just below the pile, in its area of influence. The article presents some of the methods of averaging the measured cone resistance, how they may affect the obtained results and other factors affecting mainly end-bearing capacity of a single compressed pile.

11

New approach to the calculation of pistachio powder hysteresis

75%

Tavakolipour H., Mokhtarian M.

International Agrophysics

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2016

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tom 30

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nr 2

12

Impacts of modulation for direct payments in Hungary

75%

Vasary M., Molnar J., Zsolt B.

Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu

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2013

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tom 15

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nr 4

The redeployment of subsidies through modulation was a new element in the system of Hungarian agricultural support in the premium year of 2012. In harmony with EU principles, it has become possible (within Hungarian implementation) to create a system which enables the radical moderation of actual volumes of subsidy redeployment resulting from modulation. The basis of model calculations was created by the finalized data of ARDA about payments in the premium year of 2011. Following the running of calculations, it can be confirmed that the implementation of the Hungarian method has resulted in reduced payments only in the case of 2% of all farmers eligible for direct subsidies, and about 10% of those who are actually involved in payment reduction.

13

Primenenie sostavnykh kombinirovannykh balok v konstrukcijakh maloehtazhnykh derevannykh domov

75%

Ljutov L.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2013

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tom 15

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nr 5

14

Bankfull values in gauge station cross sections of the Raba River - Polish Carpathians

75%

Combal T., Radecki-Pawlik A., Czech W., Plesinski K.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2017

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tom 16

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nr 1

15

Raschet koehfficientov aehrodinamicheskikh sil i momentov, dejjstvujushhikh na semena rastitel'nykh kul'tur v potoke vozdukha metodom ploskikh sechenijj

75%

Luk'janenko V., Nikiforov A.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2013

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tom 15

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nr 7

16

Optimizacija parametrov algoritma akustiko-ehmissionnogo diagnostirovanija podshipnikov kachenija

75%

Shevchenko S.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2016

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tom 18

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nr 7

17

Calculating particle density, bulk density, and total porosity of soil based on its texture

75%

Brogowski Z., Kwasowski W., Madymiak R.

Soil Science Annual

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2014

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tom 65

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nr 4

18

Enquiry into area related evaporation values, in consideration of local conditions, on the basis of an agrar-meteorological model for calculation of evapotranspiration rates in cultivated plants

75%

Muller J., Muller G., Thoma M.

Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Melioracja

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1990

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nr 35

19

3D analysis of machining of wind turbine blade using CAD/CAM software. Part 3. Simulation of machining in CAM environment

75%

Tucki K., Zimoch M.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2016

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tom 16

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nr 1

20

Napornoe-beznapornoe dvizhenie stokov v sistemakh bodootvedenija kol'cevojj struktury

75%

Chupin R.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2014

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tom 16

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nr 5

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