نتایج جستجو برای: pressure control system
تعداد نتایج: 3557487 فیلتر نتایج به سال:
The goal of this paper is to attain a robust positioning control of pneumatic driving system. A positioning control system positively focusing on the pressure control is investigated, from the view that the pressure control is indispensable for improvement '7f control performances. A disturbance observer is employed to improve the pressure response and compensate the influence of fnction force ...
چکیده کنترل برداری پیشرانه مکانیزمی برای تغییر جهت پیشران? موتور در راکت ها یا وسایل پروازی می باشد. این مکانیزم در راکت های سوخت جامد توسط اتصالات انعطاف پذیر در جهت کنترل موقعیت یا سرعت زاویه ای وسیله انجام می شود. در وسایل پروازی سوخت جامد پیشرفته، کنترل برداری پیشرانه به کمک انحراف بردار پیشرانه و با استفاده از سروُ مکانیزم های الکتریکی مانند عملگر الکترومکانیکی انجام می گیرد. در این پروژه،...
As a resolution for air pressure control challenges in ultra-low frequency modal testing suspension systems, an incremental PID control algorithm with dead band is applied to achieve high-precision pressure control. We also develop a set of independent hardware and software systems for high-precision pressure control solutions. Taking control system versatility, scalability, reliability, and ot...
بررسی اثر عصاره آبی- الکلی برگ گردو بر روی فشارخون و تداخل اثر آن با سیستم آدرنرژیک در موش صحرایی نر
Background: Hypertension is one of the most common diseases in recent century with several complications. The purpose of this study was to evaluate the effect of hydroalcoholic extract of Juglans regia L. leaves (Walnut tree) on blood pressure and its interaction with the adrenergic system in male rats. Methods: In this experimental study that established in the physiology lab, School of sci...
abstract this study was carried out to compare disinfecting effects of nanosilver with other feed disinfectants on layer hen performance, immune system, gastrointestinal microflora and intestinal morphology. total of 90 layers (lsl) were divided into five groups consisting: 1-control, 2- formalin (200 ppm), 3- formaycin (200 ppm), 4- nanosilver in drinking water (7.5 ppm) and 5-nanosilver in f...
OBJECTIVES To measure airway pressures during closed system suctioning with the ventilator set to three differing modes of ventilation. METHODS Closed system suctioning was conducted in 16 patients following cardiac surgery. Suctioning was performed using a 14 French catheter with a vacuum level of -500 cmH2O through an 8.0 mm internal diameter endotracheal tube. The lungs were mechanically v...
Aims and background: The aim of this study was to investigate the effects of elastic gait training on the peak plantar pressure variables and peak forces of 10 regions of the foot, peak of vertical force, time to peak of vertical force and displacement of center of pressure in patients with low back pain during running. Materials and methods: The sample of this study included 29 men with low b...
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