نتایج جستجو برای: passive control

تعداد نتایج: 1387530  

Journal: :Applied sciences 2021

In the present world, passive control finds application in various areas like flow over blunt projectiles, missiles, supersonic parallel diffusers (for cruise correction), engine of jets, static testbeds rockets, ports internal combustion engines, vernier and single expansion ramp nozzle (SERN) rockets. this review, techniques to base pressure regulate drag force are discussed. study, papers ra...

Journal: :iranian journal of allergy, asthma and immunology 0
maryam hassanzad pediatric respiratory diseases research center, national research institute of tuberculosis and lung disease, masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, iran. soheila khalilzadeh pediatric respiratory diseases research center, national research institute of tuberculosis and lung disease, masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, iran. shabnam eslampanah nobari tobacco prevention control research center, national research institute of tuberculosis and lung disease, masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, iran. mohammadreza bloursaz pediatric respiratory diseases research center, national research institute of tuberculosis and lung disease, masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, iran. hooman sharifi tobacco prevention control research center, national research institute of tuberculosis and lung disease, masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, iran. seyed amir mohajerani tobacco prevention control research center, national research institute of tuberculosis and lung disease, masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, iran.

asthma environmental triggers play important roles in severity of disease. passive smoking could exacerbate asthma symptoms and enhance the decrease in lung function. cotinine levels could be a reflection of passive exposure to the cigarette both in adults and pediatrics. the aim of this study was to determine degree of association of asthma severity and cotinine level as a marker of passive sm...

Journal: :Complex Analysis and Operator Theory 2007

Journal: :Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 2017

Journal: :IEEE/ASME Transactions on Mechatronics 2005

Journal: :International Journal of Rotating Machinery 2013

Journal: :Micromachines 2023

Jet noise is a common problem in minimum quantity lubrication (MQL) technology. This should be given great attention because of its serious impacts on the physical and mental health operators. In this study, micro-grooved nozzle proposed based reduction concept biological micro-grooves. The flow field acoustic characteristics an original were investigated numerically to help better understand m...

2011
F. Palacios-Quiñonero J. M. Rossell J. Rodellar

In this paper, a control strategy to reduce the vibrational response of adjacent buildings under seismic excitation is presented. The proposed strategy combines passive linking elements with an active decentralized H∞ control system. The overall active-passive control system admits decentralized design and operation, and achieves an excellent vibrational reduction when the active control system...

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