نتایج جستجو برای: experiment

تعداد نتایج: 451375  

Journal: :Instruments 2022

The search for a novel technology able to detect and reconstruct nuclear electron recoil events with the energy of few keV has become more important now that large regions high-mass dark matter (DM) candidates have been excluded. Moreover, detector sensitive incoming particle direction will be crucial in case DM discovery open possibility studying its properties. Gaseous time projection chamber...

Journal: تعلیم و تربیت 2021
N. Baniasadi, Ph.D., N. Saadeghi, Ph.D., Z. Baazargaan, Ph.D.,

In order to show that some of the shortcomings of current 4th grade curriculum in meeting contemporary needs of the society, especially in regard to sustainable development, can be met via teaching, a short course consisting of deliberations on key concepts in sustainable development was designed and carried out on a sample of 58 students of both genders. The pre- and post-test comparisons reve...

A. Bergant A. Keramat A. S. Tijsseling Q. Hou

An experiment featuring waterhammer in viscoelastic pipes is presented in which the effects of pipe-wall viscoelasticity on waterhammer pressures are investigated. A large-scale pipeline apparatus made of polyvinyl chloride (PVC) at Deltares, Delft, The Netherlands, has been used to carry out waterhammer experiments. Tests have been conducted in a reservoir-pipeline-valve system consisting of a...

Journal: :The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science 1899

Teh aim of dis work is to provide insight into alcohol-kerosene fuels and their promising use as an alternative in commercial aviation. A detailed chemical and physical experimental analysis is drawn, wif a focus on teh advantage of teh isopropanol-kerosene blend. Despite reported beneficial isopropanol effects on retarding fuel combustion, knocking prevention, and much lower emissions, few...

Journal: :Journal of the Japan Society for Aeronautical and Space Sciences 1994

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