نتایج جستجو برای: validation
تعداد نتایج: 174233 فیلتر نتایج به سال:
objective(s) developing and validating a simple, efficient, reproducible and economic reversed phase high performance liquid chromatographic (rp-hplc) method for the quantitative determination of pefloxacin in bulk material, tablets and in human plasma. materials and methods a shim-pack clc-ods column and a mobile phase constituting acetonitrile: 0.025 m phosphoric acid solution (13:87 v/v, ph ...
shear wave velocity is a basic engineering tool required to define dynamic properties of soils. in many instances it may be preferable to determine vs indirectly by common in-situ tests, such as the standard penetration test. many empirical correlations based on the standard penetration test are broadly classified as regression techniques. however, no rigorous procedure has been published for c...
Background: Carpal tunnel syndrome (CTS) is recognized as the most common type of neuropathies. Questionnairesare the method of choice for evaluating patients with CTS. Boston Carpal Tunnel Syndrome (BCTS) is one of the mostfamous questionnaires that evaluate the functional and symptomatic aspects of CTS. This study was performed toevaluate the validity and reliability of the Persian version of...
in this research, to considering the theoretical background of the research andmodel of organizational justice, ten items were designed; then, thirty-two variableswere extracted. finally, the matching variables with model of organizational justicewere performed. the proposed model was designed according to the extractionvariables and their matching. to structural and conceptual validation, the ...
Abstract In this work the new simple model proposed for predicting the thermal decomposition temperature of energetic nitroaromatic compounds. The results are shown that the optimum elemental composition and several structural parameters have the most effects on this model which is derived by multiple Linear Regression (MLR) approach. The determination coefficient of the model is 0.940 for 29 ...
نظر به اهمیت بالای سدسازی بالخصوص سدهای خاکی در کشور و تعدد سدهای خاکی ساخته شده و در حال بهره برداری و سدهای در دست ساخت ، مدلسازی صحیح فشار حفره ای و آنالیز مناسب تراوش می تواند متضمن ایمنی بیشتر سد باشد. در این تحقیق برای برآورد میزان پتانسیل آبی هسته سد سهند، از روش rbf استفاده شد. برای مدل سازی معادلات حاکم بر تراوش سد تابعmultiquadric، رایج ترین تابعrbf ، بکار رفت. این تابع دارای ضریب شک...
There are three major strategies to form neural network ensembles. The simplest one is the Cross Validation strategy in which all members are trained with the same training data. Bagging and boosting strategies pro-duce perturbed sample from training data. This paper provides an ideal model based on two important factors: activation function and number of neurons in the hidden layer and based u...
Abstract Introduction: Values are central elements of the personality and constructive blocks of good life and are considered as criteria for guiding thought and practice. The purpose of the present study was to investigate the psychometric properties (reliability and validity) of the portrait values questionnaire. Method: This research was a descriptive-analytic study that was a confirmatory...
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