نتایج جستجو برای: resistance in series model

تعداد نتایج: 17414393  

Abedi, Bahram, Hosseini, Seyed Ali , Shams, Behnam ,

Introduction: Nowadays, the use of energy substances has become a complex problem in sports, in which the role of anabolic-androgenic asteroids is undeniable. The aim of this study was to evaluate the effect of a period of resistance training on BDNF gene expression and poor memory in rats poisoned with anabolic steroid stanazolol. Methods: In this experimental study, 18 Sprague-Dovali rats wi...

Journal: :medical journal of islamic republic of iran 0
alireza mohebbi tehran university of medical sciences, tehran,سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) hadi ghanbari tehran university of medical sciences, rasoul akram hospital, sattarkhan avenue, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)سازمان های دیگر: rasoul akram hospital hamid reza sohrabi tehran university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) arezoo farjamnia tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)

abstract:   background: the most important and complex phenomenon of respiratory function of the nose is related to different nasal anatomy. the differences in facial anatomic structure between different races may also be reflected in nasal resistance and airflow. caucasians has different facial anatomic structure which is the reflection of intranasal resistance or consequence of airflow. the a...

2007
Y. Z. Xu J. T. Watt

Spiral inductors fabricated using a 90nm CMOS process have been characterized and analyzed. The extracted series resistance increases with frequency and temperature. The extracted resistance temperature coefficient exhibits a strong dependence on operating frequency. It gradually decreases with frequency and is different from the results using DC temperature coefficients. A single π-model is us...

Journal: :The European respiratory journal 1989
H Lorino C Mariette A M Lorino A Harf

Total respiratory impedance has been measured between 3-42 Hz by the forced random noise technique, in 15 subjects breathing either air or a helium oxygen mixture in three experimental conditions: at basal state, and then with a resistor or a tube added at the mouth. Impedance is modelled, either by a 4-parameter model (M4), derived from the series model (resistance, inertance, compliance) by m...

A common method to study the dynamic behavior of macroeconomic variables is using linear time series models; however, they are unable to explain nonlinear behavior of the series. Given the dependency between stock market and derivatives, the behavior of the underlying asset price can be modeled using Markov switching process properties and the economic regime significance. In this paper, a two-...

Journal: :geopersia 2012
mohammad nakhaei amir saberi nasr

accurate groundwater level modeling and forecasting contribute to civil projects, land use, citys planning and water resources management. combined wavelet-artificial neural network (wann) model has been widely used in recent years to forecast hydrological and hydrogeological phenomena. this study investigates the sensitivity of the pre-processing to the wavelet type and decomposition level in ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

the issue of curriculum and syllabus evaluation and revision has been in center of attention right from when curriculum came into attention of educational institutions. thus everywhere in the world in educational institutions curricula and syllabi are evaluated and revised based on the goals, the needs, existing content, etc.. in iran any curriculum is designed in a committee of specialists and...

Abstract : The variation of the electrical resistivity of a material in the externalmagnetic field is known as magneto resistance. This phenomenon has been attractedboth theoretical and experimental researchers in miniaturization of magneto meters inthe recent years. In this paper, the magneto resistance of an inhomogeneous twodimensional conductor with ladder geometry i...

حسن زاده, جعفر, مرادی نظر, مهدی, نجفی, فرید,

The time series is a collection of observation data that are arranged according to time. The main purpose of setting up a time series is to predict future values. The first step in time series data is graphed. Using graphs can provide general information such as uptrend or downtrend, seasonal patterns, periodic presence, and outliers in time series graphs. After graphing the data, if a good for...

Journal: :international journal of civil engineering 0
h. ziari iust, tehran,iran h. divandari islamic azad university, nowshahr branch, department of engineering, nowshahr, iran

pavement permanent deformations due to lack of shear strength in mixture are a major reason of rutting. any simple test to determine mixtures resistance to permanent deformation isn’t distinguished in the 1st level of superpave mix design method and prevalent methods for evaluating mixture rut resistance are expensive and time-consuming. two aggregate types, gradations, asphalt cements and fill...

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