نتایج جستجو برای: one can use multivariate regression

تعداد نتایج: 5266786  

Journal: :مرتع و آبخیزداری 0
مریم خسروی کارشناسی¬ارشد آبخیزداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران علی سلاجقه دانشیار دانشکده منابع طبیعی، دانشگاه تهران، ایران محمد مهدوی استاد دانشکده علوم فنون دریایی، دانشگاه آزاد اسلامی، واحد تهران شمال‏، ایران محسن محسنی ساروی استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران

it is necessary to use empirical models for estimating of instantaneous peak discharge because of deficit of gauging stations in the country. hence, at present study, two models including artificial neural networks and nonlinear multivariate regression were used to predict peak discharge in taleghan watershed. maximum daily mean discharge and corresponding daily rainfall, one day antecedent and...

H. Sabouri Khosroshahi, Ph.D., M. Rahmati Kazzaz, T. Shiri, Ph.D.,

Cultural divergence is incongruity in the values, attitudes and behaviors among different generations of a society. Identifying factors related to cultural divergence in the social values ​​of parents and children is one of the most important issues in Iranian society, which has been investigated in the present research through a quantitative approach. The statistical population of the study co...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1389

the current study examined iranian undergraduate efl students’ willingness to communicate with regard to their vocabulary knowledge. in general, participants were somewhat willing to communicate in english. the total mean score of 730 university students’ perception of willing to communicate was 83.53 out of 135. results, regarding four parts of willingness to communicate, revealed that part...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1389

abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...

Journal: :international journal of health studies 0
reza chaman1 1. dept. of scocial medecine, school of medicine, yasuj university of medical sciences, yasuj, iran. ahmad khosravi2 2. center for health related social & behavioral sciences research, shahroud university of medical sciences, shahroud, iran. mohammad norozi khiyabani3 3. mashhad university of medical sciences, mashhad, iran. mohammad amiri4* 4. dept. of public health, school of public health, shahroud university of medical sciences, shahroud, iran.

background: unwanted pregnancies and their complications are one of the major problems facing women in the world. this study aimed to determine the factors that affect unwanted pregnancy in the population covered by the shahroud university of medical sciences in 2013. methods: in this case-control study, 116 cases and 251 controls were randomly selected from those who referred to health care ce...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده ادبیات و علوم انسانی 1389

?it is of utmost priority for an experienced teacher to train the mind of the students, and enable them to think critically and correctly. the most important question here is that how to develop such a crucial ability? this study examines a new way to the development of critical thinking utilizing critical discourse analytical tools. to attain this goal, two classes of senior english la...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده فنی و مهندسی 1387

abstract biometric access control is an automatic system that intelligently provides the access of special actions to predefined individuals. it may use one or more unique features of humans, like fingerprint, iris, gesture, 2d and 3d face images. 2d face image is one of the important features with useful and reliable information for recognition of individuals and systems based on this ...

Journal: :تحقیقات آب و خاک ایران 0
روح اله تقی زاده دانشجوی دکتری، دانشگاه تهران شهلا محمودی استاد، دانشگاه تهران علی اکبرزاده دانشجوی کارشناسی ارشد، دانشگاه تهران هادی رحیمی لاکه کارشناس ارشد، دانشگاه گیلان

the functions employed in an estimation of costly measured soil properties from either widely available or more easily obtained basic soil properties are referred to as pedotransfer functions. to develop pedotransfer functions, one can use multivariate regression, neural networks and neuro-fuzzy models. to make a comparison among the mentioned models, 153 soil samples were collected from soils ...

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