Two-directional N2 desorption in thermal dissociation of N2O on Rh(110), Ir(110), and Pd(110) at low temperatures

Two-directional N2 desorption in thermal dissociation of N2O on Rh„110..., Ir„110..., and Pd„110... at low temperatures

Sticking coefficient of nitrogen on solid N2 at low temperatures

The sticking coefficient of nitrogen gas on a thick solid nitrogen film on a copper cold finger was studied at low temperature. For surface temperatures of about 12 K the sticking coefficient is measured to be 99.0 0.6%. Our result implies that it will be possible to make a intense and high brightness slow positron source starting from a small diameter deposit of the gaseous positron emitter N2...

Direct Measurement of Desorption Kinetics of 4He at Low Temperatures

general results a r e similar : The characteristic lengths of helicity a r e larger than those of the energy, and the helicity again oscillates between positive and negative values at all smaller scales. The data at 1 AU were taken in a s t ream interaction region13 and included both slow stream and fast stream intervals. Thus these results suggest that there is nothing atypical in the data sho...

the effects of keyword and context methods on pronunciation and receptive/ productive vocabulary of low-intermediate iranian efl learners: short-term and long-term memory in focus

از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...

Effects of zeolite on growth and hematology of rainbow trout (Oncorhynchus mykiss) kept at low temperatures

It is known that zeolite, tested in animal feeds in recent years, has a positive effect on fish growth and many physiological parameters. For this purpose, rainbow trout (Oncorhynchus mykiss) was fed with feeds containing zeolite at different rates (1%, 3%, and 5%) for three months in the present study. Fish growth parameters (live weight gain, specific growth rate, feed conversion rate, condit...