نتایج جستجو برای: vacuum electronic devices

تعداد نتایج: 448868  

Journal: :Journal of Physics: Conference Series 2008

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم انسانی 1389

this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

Journal: :iranian journal of radiation research 0
m.a. mosleh-shirazi department of radiotherapy, namazi hospital, shiraz university of medical sciences, shiraz, iran h. taylor department of radiotherapy, royal marsden hospital, sutton, surrey, uk a.p. warrington joint department of physics, royal marsden hospital and institute of cancer research, sutton, surrey, uk f.h. saran department of radiotherapy, royal marsden hospital, sutton, surrey, uk

background: in order to assign appropriate planning target volume (ptv) margins, each centre should measure the patient positioning deviations for their set-up techniques. at the royal marsden hospital, uk, a conformal shell (cast) system is used when a stereotactic frame is not suitable. in this paper, we report on a series of measurements with the aim of obtaining the systematic and random co...

Journal: :IEEE Transactions on Electron Devices 2021

Great progress has been made on machine learning and its applications are expanding rapidly nowadays. Through the case study of optimizing a magnetron injection gun for gyrotron devices, functions were investigated by using two supervised algorithms, regression trees artificial neural networks. They showed excellent performance in predicting outputs, exploring importance input parameters relati...

Journal: :Russian Technological Journal 2019

Journal: :Cardiac Electrophysiology Clinics 2018

2012
Stéphane Régnier

Amicromanipulation system is a robotic device which is used to physically interact with a sample under a microscope, where a level of precision of movement is necessary that cannot be achieved by the unaided human hand It is well known that pick-and-place is very important for 3-D microstructure fabrication since it is an indispensable step in the bottom-up building process. The main difficulty...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید