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19 Aktuelle Fachpublikationen zum Thema temperature

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Efficacy of mineral oil combined with insecticides for the control of aphid virus vectors to reduce potato virus Y infections in seed potatoes ( Solanum tuberosum )

16.06.2011 | Lars M. Hansen; Steen L. Nielsen, Acta Agriculturae Scandinavica, Section B - Plant Soil Science, 2011

Abstract Aphids are major vectors of plant viruses. Potato virus Y (PVY) is the most important aphid-transmitted virus affecting potato crops in Denmark. Because of a changed seed potato growing strategy, the seed potato area in Denmark is changing from regions with a low average temperature to ...

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Zooplankton responses to hydrological and trophic variability in a Mediterranean coastal ecosystem (Lesina Lagoon, South Adriatic Sea)

13.06.2011 | Cinzia Brugnano; Raffaele D'Adamo; Adele Fabbrocini; Antonia Granata; Giacomo Zagami, Chemistry and Ecology, 2011

Spatial and temporal variability in zooplankton was studied at eight stations located in the Lesina Lagoon (South Adriatic Sea) Salinity, temperature, dissolved oxygen and chlorophylla (in the lagoon) at these stations were also assessed. The zooplankton community was characterised by clear ...

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Anomalous behaviour in sound velocity of water

13.06.2011 | A. Kumar; P. Kuchhal; N. Dass; P.P. Pathak, Physics and Chemistry of Liquids, 2011

In the present article, a relation is being developed to study the pressure dependence of sound velocity of water at different temperature. The computed results are found out to be in excellent agreement with the experimental data. However, it is shown that the sound velocity of water exhibits ...

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A correspondence between Grunberg–Nissan constant d′ and complex varieties in water/methanol mixture

13.06.2011 | Moez Guettari; Abdelhafidh Gharbi, Physics and Chemistry of Liquids, 2011

The aim of this study was to analyse the change in the complex structure formed in water/methanol mixture under temperature effect and/or mixture composition by a simple method. First, the dynamic viscosity of mixture was measured by rheoviscosimetry, and then the variation of the total ...

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OPTIMIZATION OF PARAMETERS FOR THE SYNTHESIS OF SILVER IODATE SUBMICRON BELTS BY TAGUCHI ROBUST DESIGN METHOD

09.06.2011 | S. M. Pourmortazavi; S. S. Hajimirsadeghi; M. Rahimi-Nasrabadi; I. Kohsari, Chemical Engineering Communications, 2011

A statistical experimental design method was implemented to optimize experimental conditions for the preparation of silver iodate fine belts using precipitation method. Ultrafine silver iodate belts were synthesized by addition of silver ion solution to the iodate reagent. The optimal conditions ...

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EFFECT OF pH AND IONIC STRENGTH ON COMPETITIVE ADSORPTION OF ERYTHROMYCIN A AND C ONTO MACROPOROUS RESIN SEPABEAD SP825 AT DIFFERENT TEMPERATURES

09.06.2011 | Zhu Sheng; Zhu Jia-Wen; Chen Kui, Chemical Engineering Communications, 2011

Equilibrium adsorption experiments were carried out to investigate the effect of pH and ionic strength on competitive adsorption of erythromycin A (EA) and C (EC) in aqueous solution onto macroporous resin, Sepabead SP825, at different temperatures. The equilibrium data for the binary system were ...

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HEAT AND MASS TRANSFER IN THE ADSORBENT BED OF AN ADSORPTION HEAT PUMP

09.06.2011 | Hasan Demir; Moghtada Mobedi; Semra Ülkü, Chemical Engineering Communications, 2011

The heat and mass transfer equations governing an adsorbent bed in an adsorption heat pump and the mass balance equation for the adsorbent particles in the adsorbent bed were solved numerically to simulate the cycle of a basic adsorption heat pump, which includes isobaric adsorption, isosteric ...

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MODELING OF HEAT AND MASS TRANSFER IN A ROTATING VERTICAL POROUS CHANNEL WITH HALL CURRENT

09.06.2011 | Sahin Ahmed; Joaquín Zueco, Chemical Engineering Communications, 2011

In this study we have obtained an exact solution to the problem of heat and mass transfer in a rotating vertical porous channel taking into account the effects of Hall current. A strong magnetic field of uniform strength is applied along the axis of rotation. The entire system rotates about the ...

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Temperature dependence of nitrogen and oxygen-broadening of the 16 O 3 υ 1 band

03.05.2011 | C. Claveau, Molecular Physics, 2011

High-resolution Fourier transform absorption spectra of ozone broadened by N2 and O2 have been recorded at room temperature and at 225 K. Nitrogen and oxygen-broadened half-widths and their temperature dependence have been determined for 40 ro-vibrational transitions of the 16O3 ν1 band near ...

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Temperature dependence of nitrogen and oxygen-broadening of the 16 O 3 υ 1 band

03.05.2011 | C. Claveau, Molecular Physics, 2011

High-resolution Fourier transform absorption spectra of ozone broadened by N2 and O2 have been recorded at room temperature and at 225 K. Nitrogen and oxygen-broadened half-widths and their temperature dependence have been determined for 40 ro-vibrational transitions of the 16O3 ν1 band near ...

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