نتایج جستجو برای: wave

تعداد نتایج: 218105  

Journal: :the journal of tehran university heart center 0
mohammad assadian rad heshmat cardiovascular medical center, guilan university of medical sciences, rasht, iran. zahra emkanjoo heshmat cardiovascular medical center, guilan university of medical sciences, rasht, iran. hassan moladoust heshmat cardiovascular medical center, guilan university of medical sciences, rasht, iran.

t-wave oversensing occurs when the counter starts giving dual beeps for every cardiac cycle instead of one. this usually happens when the monitoring lead displays a tall t wave, which is also sharp. r wave sensing algorithms of the devices do not sense t wave because the slow rate of the t wave is much less than that of the r wave. but the slow rate of t waves may change with time and also beca...

Fossil Fuels are always considered as environmental pollutants. On the other hand, the political and economic situations highly affect the price of these fuels. Offshore wind and wave, as renewable energy sources, represent the better alternatives for electricity generation. Therefore, it is necessary that wind speeds effectively be estimated due to the absence of field measurements of the wind...

This paper introduces an optical measurement system for shock wave characteristics. The system works by mountinga metal plate attached to spring mounts against the shock wavefront. This set is sealed and can plot the shock wave pressure diagram by measuring plate's displacement, radiation and changing the reflection of light during shock wave conflict, and converting these optical data to volta...

In this paper, the reflection and refraction of longitudinal wave from a plane surface separating a micropolar viscoelastic solid half space and a fluid saturated incompressible half space is studied. A longitudinal wave (P-wave) impinges obliquely at the interface. Amplitude ratios for various reflected and transmitted waves have been obtained. Then these amplitude ratios have been computed nu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1387

چکیده ندارد.

Journal: :basic and clinical neuroscience 0
mohsen dadashi behrooz birashak farhad taremian ali asghar asgarnejad saeed momtazi

introduction: the basic objective of this study is to investigate the effects of alpha and theta brain waves amplitude increase in occipital area on reducing the severity of symptoms of generalized anxiety disorder and to increase the global functioning level in patients with gad. methods: this study is a quasi-experimental study with pre-test and post-test with two groups. for this purpose, 28...

Journal: :زن در توسعه و سیاست 0
محمدعلی توانا استادیار علوم سیاسی دانشگاه یزد

women’s issues are among basic issues of contemporary society which have been offered different solutions. while the first- wave feminists would insist on the gender equality, the second wave would emphasize that women differ from men. the third wave tried to hold on to both sides of the conundrum: equality and difference. iris marion young is one of the theorists of the third wave of feminism ...

ژورنال: مهندسی دریا 2012

Calculation of the reflected waves against obstacles is a prominent step in designing coastal structures. In addition, a complex process occurs during wave collision with beaches or breakwaters. These processes cause wave characteristics to be (energy dissipation, reflected wave, etc.). The new wave characteristics are dependent on reflected wave height straightly which are not measureable. In ...

A. K. Dhar Joydev Mondal

Asymptotically exact and nonlocal third order nonlinear evolution equations are derivedfor two counterpropagating surface capillary gravity wave packets in deep water in thepresence of wind flowing over water.From these evolution equations stability analysis ismade for a uniform standing surface capillary gravity wave trains for longitudinal perturbation. Instability condition is obtained and g...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1387

چکیده ندارد.

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