نتایج جستجو برای: wave factor

تعداد نتایج: 1052460  

Journal: :international journal of mathematical modelling and computations 0
a. k. dhar joydev mondal iiest,westbengal,india india iiest,mathematics,shibpur,westbengal, india

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...

Journal: :Cardiology journal 2011
Meryem Aktoz Mustafa Yilmaztepe Ersan Tatli Fatma Nesrin Turan Elif G Umit Armagan Altun

BACKGROUND The aim of this study was to investigate ventricular functions and left atrial (LA) mechanical functions, atrial electromechanical coupling, and P wave dispersion in scleroderma patients. METHODS Twenty-six patients with scleroderma and twenty-four controls were included. Left and right ventricular (LV and RV) functions were evaluated using conventional echocardiography and tissue ...

Journal: :iranian journal of pediatric hematology and oncology 0
a ghadiri anari assistant professor of endocrinology ,shahid sadoughi university of medical sciences and health services ,yazd, iran r ghiliyan r department of internal medicine, shahid sadoughi university of medical sciences and health services, yazd, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید صدوقی یزد (shahid sadooghi university of medical sciences) g rezaeian cardiology department, shiraz university of medical sciences, shiraz, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید صدوقی یزد (shahid sadooghi university of medical sciences)

abstract background prolonged p-wave duration and p-wave dispersion indicate interatrial conduction disturbance and early predict arrhythmia especially atrial fibrillation. iron deposition in the atrial tissue might prolonged the atrial conduction time, and this study evaluated the p-wave prolongation and increased p-wave dispersion in these patients. materials and methods fifty patients with m...

The acoustic wave velocity depends on elasticity and density at most materials, but because of anisotropy and especially piezoelectric coupling effect, the acoustic wave propagation at piezoelectric based crystalloacoustic materials, is an applied and challenging problem. In this paper, using modified Christoffel's equation based on group velocity concept, the effect of anisotropy and piezoelec...

A. BISWAS, H. TRIKI

In this paper, the coupled dispersive (2+1)-dimensional long wave equation is studied. The traveling wave hypothesis yields complexiton solutions. Subsequently, the wave equation is studied with power law nonlinearity where the ansatz method is applied to yield solitary wave solutions. The constraint conditions for the existence of solitons naturally fall out of the derivation of the soliton so...

ژورنال: مهندسی دریا 2008
تائبی, سهیلا, چگینی, فاطمه, چگینی, وحید,

In this article, the accuracy of empirical and numerical methods in prediction of wind wave characteristics in AmirAbad and Bushehr Ports have been studied, evaluated and compared. First, the wave characteristics have been calculated using Babolsar and Bushehr synoptic stations and employing empirical methods including SMB, SPM and CEM. Moreover the errors of empirical methods have been determi...

Journal: :computational methods for differential equations 0
ahmet bekir eskisehir osmangazi university, art-science faculty, department of mathematics-computer ozkan guner dumlupınar university

in this paper, exp-function and (g′/g)expansion methods are presented to derive traveling wave solutions for a class of nonlinear space-time fractional differential equations. as a results, some new exact traveling wave solutions are obtained.

ژورنال: مهندسی دریا 2006
شفیعی فر, مهدی, صدرالدینی, عباس,

Monopile platforms are rather slim structures which are sensitive to wave loadings and the natural period of them are within the range of sea waves’ periods. Therefore, suitable dynamic analysis and wave modeling for these platforms is necessary. There are two methods for analyzing such flexible structures under wave loading, i.e., deterministic and random methods. In deterministic method...

2018
Shan Lv Zhen-Ni Guo Hang Jin Xin Sun Meiyan Jia Hongyin Ma Yudan Lv Quanli Qiu Jia Liu Yi Yang

Objective The aim of this study is to analyze dynamic cerebral autoregulation (dCA) in patients with epilepsy. Methods One hundred patients with epilepsy and 100 age- and sex-matched healthy controls were recruited. Noninvasive continuous cerebral blood flow velocity of the bilateral middle artery and arterial blood pressure were recorded. Transfer function analyses were used to analyze the a...

2016
Eung-Bin Lee Yun Young Lee Jae Min Lee Su Min Son Su-Kyeong Hwang Soonhak Kwon Sae Yoon Kim

PURPOSE A limited number of studies have examined the link between F-wave abnormalities and clinical presentation in pediatric Guillain-Barré syndrome (GBS). Therefore, this study examined the importance of F-wave abnormalities as a prognostic factor in pediatric GBS patients. METHODS The records and electrodiagnostic studies (EDS) of 70 GBS patients were retrospectively evaluated, and divide...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید