نتایج جستجو برای: variables such as age

تعداد نتایج: 6441912  

2009
Girija Chetty Michael Wagner

Multimodal speaker verification based on easy-to-obtain biometric traits such as face and voice is rapidly gaining acceptance as the preferred technology for many applications. In many such practical applications, other characteristics of the speaker such as gender or age are known and may be exploited for enhanced verification accuracy. In this paper we present a parallel approach determining ...

Journal: :iranian journal of medical sciences 0
rahmatollah moradzadeh department of epidemiology, school of nursing and midwifery, islamic azad university, sanandaj, iran jafar hassanzadeh deptment of epidemiology, school of health and nutrition, shiraz university of medical sciences, shiraz, iran abdolreza rajaee fard deptment of epidemiology, school of health and nutrition, shiraz university of medical sciences, shiraz, iran sedigheh tahmasebi deptment of general surgery, mottahari clinic, shiraz university of medical sciences, shiraz, iran parvaneh golmohammadi department of epidemiology, school of nursing and midwifery, islamic azad university, sanandaj, iran

background: the traditional methods of studying the gene-environment interactions need a control group. however, the selection of an appropriate control group has been associated with problems. therefore, new methods, such as case-only design, have been created to study such interactions. the objective of this study was to compare the case-only and case-control designs using data from patients ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1391

abstract lexical knowledge of complex english words is an important part of language skills and crucial for fluent language use (nation, 2001). the present study, thus, was an attempt to assess the role of morphological decomposition awareness as a vocabulary learning strategy on learners’ productive and receptive recall and recognition of complex english words. so 90 sophomores (female and ma...

Journal: :Monthly Notices of the Royal Astronomical Society 1996

this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this study examined the effect of prior knowledge and vocabulary teaching on iranian efl learners listening comprehension. the current study has two purposes: one is to investigate the effect of background knowledge on the second language listening comprehension of iranian intermediates and the other is to determine whether second language is facilitated by the introduction of unknown vocabularies in the form of prelistening activities. to conduct the study different instruments such as listening proficiency test and four listening tests such as pre and posttests were used and various statistical processes and techniques including paired-sample t-test, and analysis of variance (anova) were used. the findings of this study supported all three hypotheses tested. differences were found between the means of preteaching vocabulary variable, the background knowledge activation variable, and mean difference between these two strategies variable. subjects scored higher when the unknown words were taught in advance. likewise, subjects scored higher when they were asked some relevant questions about the topic than on those without them. there was, in addition, a significant difference between the means of preteaching vocabulary strategy and background knowledge activation strategy. in fact, preteaching vocabulary had a better effect in enhancing the students’ listening comprehension, in comparison to background knowledge activation strategy.

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1390

this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this stud...

Journal: :پژوهش های روستایی 0
حسین میرزایی دانشگاه تهران، دکترای جامعه شناسی غلامرضا غفاری دانشگاه تهران، دکترای جامعه شناسی علیرضا کریمی دانشگاه تهران، کارشناس ارشد جامعه شناسی

introduction: today empowerment has become to one of the main concepts of sustainable development.j three types of relationship between empowerment and sustainable development are: 1- empowerment is component of sustainable development. 2- empowerment is the cause of sustainable development. 3- empowerment is the result of sustainable development. therefore it is not possible achievement to sus...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم انسانی 1393

in this research the focus of the researcher is on the influence of american myths that have long been held and offered by the american culture and ideologies. sam shepard is conceived to be one of the greatest playwrights of the contemporary american theater. in his works he depicts broken characters who are struggling to keep up with the national expectations but are ceaselessly borne back to...

2007
WU Jun LI Tiemin LIU Xinjun WANG Liping

Closed-form solutions were developed to optimize kinematics design of a 2-degree-of-freedom (2DOF) planar parallel manipulator. The optimum design based on the workspace was presented. Meanwhile, a global, comprehensive conditioning index was introduced to evaluate the kinematic designs. The optimal parallel manipulator is incorporated into a 5-DOF hybrid machine tool which includes a 2-DOF rot...

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