نتایج جستجو برای: coefficient of discharge
تعداد نتایج: 21174747 فیلتر نتایج به سال:
در این مطالعه، محیط کلریمتریک آنتی بیوگرام که در دانشگاه الزهرا طراحی گردیده است با محیط quicolor شرکت سالوبریس آمریکا و محیط مولر هینتون آگار مقایسه گردید. الگوی حساسیت صد جدایه انترو باکتریاسه با شش آنتی بیوتیک مختلف مشخص گردید. توافق هر سه روش با آنالیزکاپا بررسی گردید. با ده بار تکرار تست حساسیت آنتی بیو تیکی دو سوش استاندارد و دو جدایه بالینی از خانواده انتروباکتریاسه، در هر سه محیط مقادیر...
A widely distributed spray is an important feature for atomizer which required in various applications such as gas cooling, turbine combustion, and fluidized bed granulator. Pressure-swirl example of provides a wide angle through the swirling effect inside atomizer. One parameters affecting geometrical constant, K. Another parameter pressure-swirl discharge coefficient, Cd. Discharge coefficien...
Louvre openings are widely used for ventilation in residences at tropical regions. Traditional households rely primarily on natural cooling instead of using air conditioners throughout the year. Hence, a design strategy that maximizes rate with an accurate discharge coefficient is necessary. The traditional window without louvre 0.6. However, studies coefficients sashes lacking. Discharge will ...
Estimation of floods in a basin with various return periods is one of the effective management strategies for reducing flood damage. One of the methods for estimating flood discharge is to make synthetic unit hydrograph using the physical characteristics of the basin. The more accurate inputs of the model, the more validated results. Hence, in basins in which Instantaneous peak discharge is rec...
Morning glory spillway is one of the spillways and used when it is not possible to use any other spillways. With the onset of submergence and flow loss, and intensification of circulation and vortexes, spillway performance decreases severely. With decreasing discharge coefficient, the height of water in the reservoir increases and the risk of dam damage, caused by the lack of spillway ability o...
In this study, the discharge coefficient of side weirs located on converging channels was simulated for the first time using a new method of Extreme Learning Machine (ELM). To examine the accuracy of the numerical model, the Monte Carlo simulations were used and the experimental values validation was conducted by the k-fold cross validation method. Then, the input parameters were detected for s...
Prediction of flood peak discharge and runoff volume is one of the major challenges in the management of watersheds. The present study was carried out to estimate event flood peak discharge and runoff volume using artificial neural network (ANN) and adaptive neuro-fuzzy inference system (ANFIS) in Kasilian watershed, Iran. For this purpose, 15 rainfall characteristics were considered for 6...
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