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Wyświetlanie 1-3 z 3
Tytuł:
Design of Hybrid Solar Cell Based on Dye-Sensitized $TiO_2$ Nanoparticles with Conjugated Polymer
Autorzy:
Abbasian, K.
Rostami, A.
Pourkhorshidi, S.
Powiązania:
https://bibliotekanauki.pl/articles/1490502.pdf
Data publikacji:
2012-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
82.35.Np
88.40.hj
Opis:
In this paper, we have proposed dye-sensitized hybrid solar cell based on $TiO_2$ nanoparticles as a medium for electron transport and conjugated polymers as hole-conductor, where dye molecules absorb solar radiation and create electron-hole pairs. This solar cell can be a better alternative to conventional electrolyte based dye-sensitized solar cells, because of enhanced characteristics of performance. We have simulated it numerically, to study essential characteristics of the structure such as electron, hole and their current densities and internal electric field in two operating conditions of open-circuit and short-circuit cases. Then current-voltage characteristic diagram has been plotted and energy conversion efficiency calculated.
Źródło:
Acta Physica Polonica A; 2012, 121, 1; 10-12
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Designing of a heat pump dryer for drying of plum
Autorzy:
Chegini, G.
Khayaei, J.
Rostami, H. A.
Sanjari, A. R.
Powiązania:
https://bibliotekanauki.pl/articles/335496.pdf
Data publikacji:
2007
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
śliwka
suszenie
suszarka
pompa cieplna
energia
koszty
plum
drying
dryer
heat pump
energy
costs
Opis:
Traditional drying ways for drying of agricultural products and consumption of large amount of energy in conventional dryers result in reducing of quality and increasing of final cost of products. Utilizing of Heat Pump Dryers can improve the quality of products as well as decreasing the final production costs by means of energy saving. In the Heat Pump Dryer a high quantity of heat needed for drying of products can be shed off or saved from the latent and sensible heat of air leaving the drying chamber. In this article primary data of configuration such as relative humidity of air, input power of compressor, power of fan, recirculation air ratio (RAR) was obtained. Regarding to this primary data and dehumidifying specifications of plum, an experimental model of dryer was designed. The results indicated that the optimum temperature of drying for plums is in vicinity of 70-80°C; also specific moisture extraction rate (SMER) of designed dryer was notably more than conventional types of dryers in respect to saving the energy.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2007, 52, 2; 63-65
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of nitrogen fertilization on biology of Aphis gossypii (Hemiptera: Aphididae) reared on Chrysanthemum indicum (Asteraceae)
Autorzy:
Rostami, M.
Zamani, A.A.
Goldasteh, S.
Shoushtari, R.V.
Kheradmand, K.
Powiązania:
https://bibliotekanauki.pl/articles/66888.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The experiment studied the effect of different nitrogen levels on the biology and life table parameters of the cotton aphid, Aphis gossypii Glover reared on Chrysanthemum indicum Kitan. The fertilizer treatments were administered at 0, 25, 50, 100 and 150% of the agronomic recommended concentration. The aphids were collected from greenhouses in Mahalat and transported to pots. The different nitrogen fertilizer levels did not show a specific effect on the potassium and phosphorus content in leaves. The intrinsic rate of increase and net reproductive rate ranged from 0.173 to 0.225, and 15.47 to 28.28, respectively, at different tested fertilizer levels. The aphids showed the significantly lowest mean generation time and the highest finite rate of increase when fed on chrysanthemum fertilized at a 150% fertilizer level. The aphids fecundity and survival showed a positive correlation when the fertilizer concentration was increased. On the other hand, the highest life expectancy was obtained for the aphids fed on chrysanthemum with a 25% nitrogen level. The present data suggest that plant nitrogen content is an important factor contributing to the increase severity of the cotton aphid as a pest of chrysanthemum.
Źródło:
Journal of Plant Protection Research; 2012, 52, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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