نتایج جستجو برای: روش ماتریس انتقال tmm

تعداد نتایج: 391073  

ژورنال: انرژی ایران 2016

تحلیل آیرودینامیکی برج توربین باد تحت نیروی دینامیکی تراست یکی از مراحل مهم در طراحی برج توربین باد است که عموما با استفاده از روش اجزاء محدود انجام می‌گیرد. روش اجزاء محدود اگرچه از دقت بالایی برخوردار است اما بسته به مدل‌سازی فونداسیون و مدل‌سازی تغییرات نیروی محوری، می‌تواند حجم محاسبات را به شکل قابل توجهی افزایش دهد. در این مقاله برای کاهش حجم محاسبات و افزایش سرعت تحلیل، بجای استفاده از ر...

رجبی, مهدی , کمجانی, نادر ,

In this paper the simulation of tapered slot antenna is considered. Because of the wideband characteristic of this type of antenna, it's better to use time domain methods for simulation. In this work we use three dimensional transmission line matrix method (3D TLM) and EPML-TLM algorithm for modeling PML boundary condition straightforwardly in TLM method. Finally the result of the simulation of...

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

در این پایان نامه، خواص فیزیکی و نوارهای انرژی ویژه ی گرافن توضیح داده شده و در ادامه پارادوکس کلین در گرافن، با استفاده از معادله ی دیراک را مطالعه کرده ایم. مجموعه ای از تعدادی سد الکترواستاتیکی، در دوحالت همگن و ناهمگن مشتمل بر دو شکل از پتانسیل افزایشی خطی و گاوسی که ارتفاع سدها و عرض چاه ها ثابت است را در نظر می گیریم. با استفاده از روش ماتریس انتقال، احتمال عبور و رسانندگی تمام حالت ها بص...

2017
Norberto Villegas-Negrete Eduardo A Robleto Armando Obregón-Herrera Ronald E Yasbin Mario Pedraza-Reyes

A forward mutagenesis system based on the acquisition of mutations that inactivate the thymidylate synthase gene (TMS) and confer a trimethoprim resistant (Tmpr) phenotype was developed and utilized to study transcription-mediated mutagenesis (TMM). In addition to thyA, Bacillus subtilis possesses thyB, whose expression occurs under conditions of cell stress; therefore, we generated a thyB- thy...

2017
Rui Yan Ju Zhang Lucas Zellmer Lichan Chen Di Wu Siqi Liu Ningzhi Xu Joshua D. Liao

To estimate how many genes produce multiple protein isoforms, we electrophoresed proteins from MCF7 and MDA-MB231 (MB231) human breast cancer cells in SDS-PAGE and excised narrow stripes of the gel at the 48kD, 55kD and 72kD. Proteins in these stripes were identified using liquid chromatography and tandem mass spectrometry. A total of 765, 750 and 679 proteins from MB231 cells, as well as 470, ...

2015
Byung-Hoon Lee Jeong-Ja Kim Chan-Kyu Kim

[Purpose] This study was conducted to examine the effect of pelvic stabilization exercise and 3D equipment exercise on adult women with Functional Leg-Length Discrepancy (FLLD). [Subjects and Methods] Twenty female students in their 20's having FLLD without Structural Leg Length Discrepancy were selected. Exercise was performed for 50 min per session, three times a week, for six weeks. The Pelv...

2010
Jia-ming HAO Min QIU Lei ZHOU

Polarization is an important characteristic of electromagnetic (EM) waves, and efficient manipulations over EM wave polarizations are always desirable in practical applications. Here, we review the recent efforts in controlling light polarizations with metamaterials, at frequencies ranged from microwave to visible. We first presented a 4 × 4 version transfer matrix method (TMM) to study the sca...

2015
Edson Filho Maurizio Bertollo Claudio Robazza Silvia Comani

Since the discovery of the mirror neuron system in the 1980s, little, if any, research has been devoted to the study of interactive motor tasks (Goldman, 2012). Scientists interested in the neuropsychophysiological markers of joint motor action have relied on observation paradigms and passive tasks rather than dynamic paradigms and interactive tasks (Konvalinka and Roepstorff, 2012). Within thi...

2010
Sundar Harshavardhan Thippur V. Sreenivas

Robust stochastic modeling of speech is an important issue for the performance of practical applications. The Gaussian mixture model, GMM, is widely used in speaker ID, but its performance would get limited in the presence of unseen noise and distortions. Such noisy data, referred to as ”outliers” for the original distribution, can be better represented by the use of heavy-tail distributions, s...

2012
Xiao Yong He Qi Jie Wang Siu Fung Yu

A numerical transfer matrix method (TMM) is applied to investigate hybrid surface plasmon polaritons (HySPPs) waveguide structure, which consists of a high permittivity dielectric fiber separated from a metal surface with a low permittivity dielectric gap. The results obtained from the TMM agree well with those from the finite element method but with a faster calculation speed. As a demonstrati...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید