نتایج جستجو برای: eqs model
تعداد نتایج: 2104735 فیلتر نتایج به سال:
Introduction: Communication skill (CS) has been regarded as one of thefundamental competencies for medical and other health care professionals.Student’s attitude toward learning CS is a key factor in designing educationalinterventions. The original CSAS, as positive and negative subscales, wasdeveloped in the UK; however, there is no scale to measure these attitudesin Iran. The aim of this stud...
due to lack of knowledge management system in the organization of technical and vocational university of iran (tvuni) and losing good employees because of retirement and substitution causes huge amount of costs to replace the similar expertise. there is no any suitable system in the tvuni to store, to document, and to distribute knowledge. based on the university’s features such as it has diffe...
یکی از مهمترین روشهای تحلیل سازه ها در مهندسی مکانیک استفاده از مدل المان محدود است که اعتبار سنجی مدل مذکور، اهمیت بسزایی دارد. بدین منظور معمولا سازه مورد نظر را بصورت تجربی تحت تست آنالیز مودال قرار می دهند که مسلما فرکانس ها و شکل مود استخراجی با نظایر استخراج شده در مدل المان محدود اختلاف دارد. برای به حد اقل رساندن این اختلاف از روش های موسوم به مدل بروز رسا نی شده ) ( model updatingاستفا...
نتایج مطالعات مختلف در طول سال های گذشته به خوبی نشان می دهند که با افزایش تولید شیر، عملکرد تولیدمثلی در گاو شیری دچار افت شده است، که این مسأله می تواند سوددهی واحدهای تولیدی گاوشیر را تحت تأثیر قرار دهد به همین دلیل هدف از انجام این مطالعه بررسی صفات تولیدمثلی در شهرکرد بود. در این پژوهش از 700 رکورد مربوط به 501 تلیسه هلشتاین و 1773 رکورد مربوط به788 رکورد رأس گاو (موجود در 8 و 9 واحد پرورش...
Turbulent equipartition is investigated for the nonlinear evolution of pressure driven flute modes in a plasma in an inhomogeneous magnetic field. Numerical solutions of the model equations on a bounded domain with sources and sinks show that the turbulent fluctuations give rise to up-gradient transport, a "pinch flux", of heat or particles. The averaged equilibrium density and temperature prof...
In vitro studies have demonstrated atrazine-mediated induction of 7-ethoxyresorufin O-deethylase (EROD) activity. EROD is an enzyme active in the metabolism of many compounds, including many xenobiotics. These studies have suggested that atrazine may affect reproductive function by altering steroid metabolism. The goal of this study was to determine whether relationships could be detected betwe...
Natural time analysis enables the introduction of an order parameter for seismicity, which is just variance natural χ, κ1=⟨χ2⟩−⟨χ⟩2. During last years, there has been significant progress in seismicity. Milestones this are identification clearly distiguishable minima fluctuations κ1 seismicity both regional and global scale, emergence interrelation between correlations earthquake (EQ) magnitude...
A simple model of the storage hierarchies is formulated with the assumptions that the effect of the storage management strategy is characterized by the hit ratio fqnction. The hit ratio function and the device technology-cost function are assumed to be representable by power functions (or piece-wise power functions). The optimization of this model is a geometric programming problem. An explicit...
Background and Objective: Balance disorder is one of the most common problems in the elderly, leading to falls and serious injuries. One of the most important issues in the health of the elderly is balance and its related components. Therefore, the present study aimed to assess balance function tests, the relationship between age and anthropometric index, and perform equilibrium tests using str...
The derivation of macroscopic Maxwell equations (M-eqs.) from microscopic basis is made in a general, model-independent way. Starting from a general Lagrangian of interacting matter-EM field as a most reliable basis, we first set up simultaneous equations for microscopic ”EM field and induced current density”, where a single (microscopic) susceptibility tensor is enough to describe the whole re...
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