نتایج جستجو برای: mean percentage of relative error

تعداد نتایج: 21198262  

Journal: :iranian journal of pharmaceutical research 0
maryam kazemipour department of chemistry, faculty of sciences, kerman branch, islamic azad university, ir iran. iman fakhari department of chemistry, faculty of sciences, kerman branch, islamic azad university, ir iran. mehdi ansari herbal and traditional medicines research center, kerman university of medical sciences, kerman, iran.

gabapentin is an anticonvulsant widely used in the treatment of epilepsy. no peculiar chromophore is available on the gabapentin moiety for direct analysis by absorption spectrophotometry. a sensitive spectrophotometric method for the determination of gabapentin in bulk, pharmaceutical formulations and human plasma has been developed. in this method, gabapentin directly derivatized with vanilli...

ژورنال: علوم آب و خاک 2015
بابایی حصار, سحر, عرفانیان, مهدی,

Concerning the drying problem of the Lake Urmia in Iran, so far the relevant scientific research has not been conducted based on watershed management principles. The surface solar radiation (Rs) is one of the key input parameters in most of reference evapotranspiration (ET0) prediction models. In the present research, four solar radiation models were evaluated to predict the monthly-mean values...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده علوم انسانی 1389

در این پایان نامه دو روش اصلاح اشتباهات نوشتاری زبان آموزان بزرگسال ایرانی در سطح متوسط مورد بررسی قرار می گیرد. در روش اول (explicit) اشتباهات بطور مستقیم و در روش دوم (implicit) اشتباهات بصورت غیر مستقیم اصلاح می شود. برای انجام این تحقیق از دو گروه 15 نفری استفاده شده است. به زبان آموزان در هر جلسه یک موضوع انشا داده شده است. این کار در 15 هفته (15 جلسه) تکرار شده است. مقایسه نتایج این آزمون...

Journal: :Applied Mathematics and Computation 2016
Ling Feng Zhigang Huang Xuerong Mao

Stock market linked savings accounts have become more and more popular. The returns of these accounts are random so the returns, even the initial capital, are not guaranteed. They are very much different from the familiar fixed-term-fixed-rate savings accounts. The aim of this paper is to perform the stochastic and numerical analysis on the stock market linked savings accounts in order to estab...

Journal: :Energies 2022

In modern power systems, condition monitoring equipment generates a great deal of steady-state data that are too large for transmission and, thus, compression is needed. Therefore, there balance to strike between quality and accuracy. Greedy algorithms effective but suffer from low reconstruction This paper proposes block sparse Bayesian learning (BSBL)-based method. Based on the prior distribu...

Journal: :ce/papers 2023

Abstract Bridges all over the world are vulnerable to severe deterioration agents meanwhile their maintenance budgets being tightened. This state of affairs necessitates establishment an autonomous model predict performance condition bridges. research paper explores implementation a set intelligent data driven models analyze future ratings bridge decks. These comprise support vector machines, G...

    Evaluation the best of selective base period of GCM models to determine meteorological variables of Birjand station in future periods   Abstract: Nowadays, determining the effect of a climate change in the various aspects of human life is quite evident. In such a situation, it is very important to determine the base period, which determines the effects of a climate change than in this ...

M. Homaee, N.A. Karimian S. Saadat Y. Hosaini

Boron (B) is essential to growth at low concentrations and limits growth and yield when in excess. Little is known regarding plant response to excess B and salinity occurring simultaneously. In this study, two models of Leibig-Sprengel (LS) and Mitscherlich-Baule (MB), originally proposed to explain plant response to nutrients only, were modified to evaluate canola yield response to combined le...

2004
Thomas Wenzel

Error measures for the evaluation of forecasts are usually based on the size of the forecast errors. Common measures are e.g. the Mean Squared Error (MSE), the Mean Absolute Deviation (MAD) or the Mean Absolute Percentage Error (MAPE). Alternative measures for the comparison of forecasts are turning points or hits-and-misses, where an indicator loss function is used to decide, if a forecast is ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1393

this thesis attempts to measure learning styles, self efficacy and intrinsic motivation as predictors of iranian ielts reading comprehension. in order to address this issue, a quantitative study was conducted on some randomly selected intact students at ferdowsi university. these two groups were assigned as they were undergraduate (ba=91) and graduate (ma =74) students; they were all aged betwe...

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