نتایج جستجو برای: was better than svm model

تعداد نتایج: 6251935  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده مهندسی علوم آب 1393

drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه دریانوردی و علوم دریایی چابهار - دانشکده ادبیات و زبانهای خارجی 1390

abstract cooperative learning refers to small groups of learners working together as a team to solve a problem, complete a task, or accomplish a common goal. in a cooperative environment one’s success is directly related to the success of other members because the focus on the individual shifts towards the group. to test the effectiveness of the method, using jigsaw technique, a study was cond...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - پژوهشکده علوم انسانی و اجتماعی 1391

abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...

The 17β-HSD3 enzyme plays a key role in treatment of prostate cancer and small inhibitorscan be used to efficiently target it. In the present study, the multiple linear regression (MLR),and support vector machine (SVM) methods were used to interpret the chemical structuralfunctionality against the inhibition activity of some 17β-HSD3inhibitors. Chemical structuralinformation were described thro...

Journal: :journal of chemical health risks 0
alireza jalali department of chemistry, college of basic sciences, shahrood branch, islamic azad university, shahrood, iran mehdi nekoei department of chemistry, college of basic sciences, shahrood branch, islamic azad university, shahrood, iran majid mohammadhosseini department of chemistry, college of basic sciences, shahrood branch, islamic azad university, shahrood, iran

a robust and reliable quantitative structure-property relationship (qspr) study was established to forecast the melting points (mps)  of a diverse and long set including 250 drug-like compounds. based on the calculated descriptors by dragon software package, to detect homogeneities and to split the whole dataset into training and test sets, a principal component analysis (pca) approach was used...

The 17β-HSD3 enzyme plays a key role in treatment of prostate cancer and small inhibitorscan be used to efficiently target it. In the present study, the multiple linear regression (MLR),and support vector machine (SVM) methods were used to interpret the chemical structuralfunctionality against the inhibition activity of some 17β-HSD3inhibitors. Chemical structuralinformation were described thro...

Journal: :محیط شناسی 0
علی اسکندری مربی گروه مهندسی عمران و محیط زیست، دانشکدة فنی، دانشگاه آزاد اسلامی بوشهر روح اله نوری دانشجوی دکترای گروه مهندسی عمران و محیط زیست، دانشکدة فنی، دانشگاه آزاد اسلامی بوشهر حامد معراجی دانشجوی دکترای گروه مهندسی عمران و محیط زیست، دانشکدة فنی، دانشگاه آزاد اسلامی بوشهر امین کیاقادی دانشجوی کارشناسی ارشد مهندسی محیط زیست دانشکدة فنی، دانشگاه آزاد اسلامی بوشهر

recently, hardware sensors are widely used in monitoring and measurement of water quality parameters. constraint of the instrument to measure some water quality parameters such as the 5-day biochemical oxygen demand (bod5), which are time consuming, causes efforts are diverted to the use of software sensors for online prediction of bod5. the main goal of this research is developing an appropria...

ژورنال: اقیانوس شناسی 2022

Background and Objectives: The purpose of this study is to simulate and predict the dimensions of the scour cavity downstream of the siphon overflow using the SVM model and compare it with other numerical methods. The use of the SVM algorithm as a meta-heuristic system in simulating complex processes in which the dependent variable is a function of several independent variables has been widely ...

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
mojtaba khoshravesh mohammad-ali gholami jamal abbas-palangi mohammad mirnaseri

groundwater contamination by nitrate is a globally growing problem due to the population growth and increase of demand for food supplies.increasing nitrate concentrations in soil solution and leaching into the ground water table cause water pollution and disturbs the ecological balance. in addition to natural nitrogen cycle, nitrate can be entered to soil and water from the human waste, urban a...

Journal: :Evidence-based nursing 2004
Pam Hubley

METHODS Psychometric tests explored body image, depression, and coping responses. Semistructured interviews were administered preoperatively, 6 months postoperatively, and 1 month after frame removal. Interview questions, derived from a pre-study focus group, related to participants’ perceptions of their daily experiences of living with the Ilizarov frame. Interviews were tape recorded, transcr...

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