Efficacy of Cinnamon bark oil vapour (Cinnamomam verum Presl.) and Citronella oil vapour (Cymbopogon nardus L.) were evaluated for the control of infestations of Callosobruchus chinensis L in bulk stored green gram. Both oils were used at 5ml and 10ml/5kg of seeds in 3L plastic baskets. Oviposition and damaged seeds were detected for up to two months of period. At the end of the storage period,...

Spontaneous ordering of nanoparticles (NPs) occurring as a consequence of solvent evaporation can yield highly ordered and extended NP superlattices bearing both fundamental scientific interest and potential for technological application. A versatile experimental chamber has been developed allowing (i) controlled in situ deposition of NP solutions on solid substrates, (ii) rate-controlled evapo...

In this article two methods for improvements of (112̄2) oriented semipolar GaN grown by MOVPE on pre-structured sapphire substrates are investigated. The integration of a SiNx interlayer helps to obtain a better crystal quality. Also the overgrowth of the MOVPE samples by HVPE is a way to obtain a smoother GaN surface. A high incorporation of oxygen on (112̄2) oriented GaN compared to (0001) orie...

THiS REV,EW studies the humidi ty output of anaesthet ic sys tems in common use and the steps taken to improve them. The amount of water vapour which an a tmosphere can hold varies with temperature . The warmer the ambient gas mixture, the more water vapour it can contain. There is a max imum amount of water vapour which the a tmosphere can maintain at each tempera ture when it becomes saturate...

mercury is a dangerous and an extremely toxic element, which can transfer to the food chain.presence of this element in the atmosphere particularly during the rainy seasons cause soil and environmental pollution, therefore this research will evaluate the transformation of mercury vapor from the atmosphere through precipitation into the soil. in the present study, mercury concentrations were det...

polycyclic aromatic hydrocarbons (pahs) are toxic pollutants released by various urban combustion sources. tehran is the largest city in iran with a population of about 8 million and it is faced with serious air quality problems. the gas phase samples collected from 21 sites in tehran area throughout year 2005. the samples‘ pahs were collected using a skc trapping consisting of glass cartridg...

mercury is a dangerous and an extremely toxic element, which can transfer to the food chain.presence of this element in the atmosphere particularly during the rainy seasons cause soil and environmental pollution, therefore this research will evaluate the transformation of mercury vapor from the atmosphere through precipitation into the soil. in the present study, mercury concentrations were det...

Nanostructured palladium catalysts are used industrially for selective alkyne hydrogenation reactions. However, structural changes can lead to a loss of performance. In this study, we show the evolution atomic structure monodispersed Pd nanoclusters undergoing vapour-phase 1-pentyne reaction. A specific transformation, from amorphous highly symmetrical structures, is observed at level with aber...