نتایج جستجو برای: control device design

تعداد نتایج: 2645701  

2003
Matthew Sweetland John H. Lienhard

Active control of the die-level temperature is desirable during production testing of high power microprocessors, so as to ensure accurate performance classification. Such control requires that the controlling thermal load time-lead the dissipated thermal load and that it be modulated to account for the distributed thermal capacitance and resistance of the device packaging. The analysis in this...

2004
Ying-Chou Cheng Chi-Yuan Lee Ching-Liang Dai Wen-Jong Chen Pei-Zen Chang Ping-Hei Chen

This work presents the micro-mirror switch array for use on free-space optical interconnect platform which integrated with a digital 1×8 de-multiplexer on-chip control circuit together. The device employs electrostatic actuation for light beam directions control. The diameter of each mirror is about 50 μm and the overall chip size is around 1.8 by 1.8 mm. The professional simulation software wa...

Journal: :VESTNIK of the Samara State Aerospace University 2014

2009
Yi Chiu Victor F.G. Tseng

This paper presents the design of a MEMS capacitive vibration-to-electricity energy converter with integrated mechanical switches for precise timing control. Integrated lateral mechanical contact switches have the advantage of zero leakage current, low energy consumption and synchronous operation. The new design can provide an output power of 31μW at a 40V output voltage from the targeted vibra...

2009
Tsutomu WADA Akira SHIMIZU Minoru TAKAGI

In a fluidic circuit, it is desired that each device holds a proper characteristic independent of another device. It is known that a vent in control channel would be useful for that purpose. Although this type of problem has been investigated by some workers, the results are still insufficient to design an optimum control channel. Then, we investigate experimentally the problem on a large scale...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

abstract chickpea is weak in competition of weeds that damages to it at between 40 t0 60 percent. kermanshah province is one of the most important region for chickpea fields in iran. for these reosons, weed management is necessary in this crop. in order to evaluate of herbicides and stubble control on broad leave weeds control in chickpea. experiment was conducted in agricultural research stat...

Journal: :International Journal of Scientific Research in Computer Science, Engineering and Information Technology 2020

Journal: :Medical engineering & physics 2000
Z C Zheng W F Yost

Hypothermia and venous thrombosis can cause complications during perioperative and postoperative periods which can even be fatal to patients' conditions. Separative devices have currently been used to prevent those two problems. The device proposed here is to combine in a simple unobtrusive fashion the desirable effects of both temperature control and deep venous thrombosis prophylaxis in perio...

Journal: :journal of quality engineering and production optimization 2015
mohammad saber fallahnezhad ahmad ahmadi yazdi parvin abdollahi muhammad aslam

in acceptance-sampling plans, the items of an incoming lot are inspected one by one. if the number of nonconforming items in sample is equal zero, the lot is accepted but if the number of nonconforming items is equal to one, then second sample is taken and the policy of zero acceptance number would be applied for the second sample. in this paper, a mathematical model is developed to design sing...

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