نتایج جستجو برای: wave parameters

تعداد نتایج: 779811  

S. Kazemi SH. Entezam

Wave run-up is one of the most important and effective parameters in designing semi-submersible platforms. Besides unforeseen effects on the movements and response of the platform, wave run up can also cause slamming forces to be exerted on the lower deck of the platform. Therefore, at the first stages of this plan, before running tests on the model of the platform, numerical methods are usuall...

Journal: :Remote Sensing 2015
Weizeng Shao Xiao-Feng Li Jian Sun

An ocean surface wave retrieval algorithm, Parameterized First-guess Spectrum Method (PFSM), which was initially developed for C-band Synthetic Aperture Radar (SAR), is modified to extract wave parameters from X-band TerraSAR-X (TS-X) images. Wave parameters, including significant wave height (SWH) and mean wave period (MWP) were extracted from nine TS-X HH-polarization images and were compared...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی برق 1386

در این پایان نامه سعی کرده ایم برای یک سری از ساختارهای خطوط انتقالی که عموما با روش های عددی یا با استفاده از نرم افزارهای full wave حل می شوند، مدلی ساده و در عین حال دقیق ارایه دهیم که می تواند رفتار مدل فیزیکی را از دید پایانه ها به خوبی پیش بینی کند. این ساختار خطوط انتقال میکرواستریپی می شوندکه در بردهای pcb چند لایه به صورت عمود بر هم قرار می گیرند. خطوط مایکرواستریپ عمود برهم به دلیل ...

2003
and Prabaharan

This paper presents an overview of the development of the numerical wave prediction models and recently used neural networks for wave hindcasting and forecasting. The numerical wave models express the physical concepts of the phenomena. The performance of the numerical wave model depends on how best the phenomena are expressed into the numerical schemes, so that more accurate wave parameters co...

ژورنال: فیزیک زمین و فضا 2017

Interactions of charge particles with electromagnetic waves have important effects (linear and nonlinear) on the propagation of electromagnetic waves, and it can somewhat play a role in generation of the new mode waves. Besides, the particle energies can play an important role in causing instability in plasma. The values of parallel energy of the particles have been calculated so that they can ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده علوم 1391

گرافن ابررسانای طبیعی نیست اما افرادی بودند که لایه های ابررسانایی بوسیله لایه نشانی یک ابررسانا برروی یک لایه گرافن بر پایه گرافن تولید کرده اند ، به طوری که علاوه بر جفت شدگی معمول s-wave دیگر جفت شدگی های غیر معمول نیز با روش مجاورت یک ابرسانای غیر معمول نظیر ابررساناهای دما بالا قابل دسترسی خواهد بود. در نتیجه توجهات خاصی به تاثیر جفت شدگی های غیر معمول در انتقالات کوانتومی در اتصالات ابر ر...

Journal: :iranian journal of veterinary science and technology 0
tahmineh tajik alireza taghavi razavizade mohammad reza aslani javad tajik

electrocardiographic (ecg) parameters and cardiac rhythms have been evaluated and published in different breeds of beef and dairy cattle but there is limited information regarding these parameters in healthy sheep. this study is aimed to investigate the ecg parameters in balouchi sheep. the ecg parameters including the amplitudes of p, q, r, s and t waves, duration of p, qrs and t waves and p-r...

voosoghi, Behzad, Arabsahebi, Reza , Tourian, Mohammad-Javad ,

 In satellite altimetry (radar altimetry), the altimeter emits a pulse, with known power, to the earth surface and receives it back continuously to determine of the sea surface height. The time series of the mean returned power is recorded individually at satellite as the so-called waveform. Analytical model for the waveform is first introduced by Brown, which consists of six parameters: signif...

2014
Hayley H. Shen

1. To build a comprehensive wave-ice interaction mathematical framework for a wide range of ice conditions observable in the Marginal Ice Zone (MIZ); 2. To identify a minimum set of rheological parameters that can reproduce all existing wave-ice interaction types; 3. To test the sensitivity of various parameters in the new wave-ice interaction model; 4. To relate physically detectable ice cover...

Traffic oscillation, stop and go traffic, is created by different reasons such as: sudden speed drop of leader vehicle. Stop and go traffic commonly is observed in congested freeways results in traffic oscillation. Many theories had been presented to define congestion traffic based on laws of physics such as: thermodynamics and fluid. But, these theories could not explain the complexity of driv...

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