نتایج جستجو برای: solving mechanisms

تعداد نتایج: 667363  

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده روانشناسی و علوم تربیتی 1391

the purpose of this study was the relationship between problem – solvi ability with fdi cognitive style of students.the research method was correlation method. for data analysis pearson test was used. statistical society in this research was all the students of alligoodarz city in 1391-92 year.to sampling of statiscal population was used sampling multi-stage random the size of sample selected 2...

Journal: :journal of teaching language skills 2013
azizullah mirzaei najmeh heidari

fluency in a second language (l2) involves a quintessentially cognitive processing system that operates quickly and effectively. the perceived importance of researching fluency through a psycholinguistic lens has motivated the related l2 research to resort to current cognitive speaking-specific models. this study, drawing on levelt’s (1999a) psycholinguistic model, probed the deficiency sources...

2013
Cuong Nguyen Gert Jan de Vreede

Crowdsourcing refers to the use of technologies to gather the collective effort and wisdom from an undefined group of online users for organizational innovation and/or problem solving. While the idea holds a lot of potential, its implementation can be thwarted by an ill design and management of the collaboration processes. Therefore, studies on crowdsourcing collaboration processes are importan...

Journal: :کشاورزی (منتشر نمی شود) 0
اکبر عرب محمد حسینی استادیار، گروه مکانیک ماشین های کشاورزی، پردیس ابوریحان، دانشگاه تهران هادی صمیمی اخیجهانی کارشناس ارشد گروه مکانیک ماشین های کشاورزی، پردیس ابوریحان، دانشگاه تهران حامد مهرآور کارشناس ارشد، گروه مکانیک ماشین های کشاورزی، پردیس ابوریحان، دانشگاه تهران جعفر مساح استادیار، گروه مکانیک ماشین های کشاورزی، پردیس ابوریحان، دانشگاه تهران

mechanical weeding is one of the non-chemical methods to control weeds. in this paper a ‎new mechanism has been presented for mechanical cultivation. the machine works based on ‎the manual tools operation, which farmers still use in small scale for weeding and consists of a ‎number of four-bar linkage mechanisms. each mechanism consists of a blade which moves ‎forward (active course) and backwa...

Journal: :IOP Conference Series: Materials Science and Engineering 2016

Objectives Mental health problems are prevalent especially in women all over the world. These problems have adverse effects on various aspects of life. Interventional programs to mental health promotion related to sociocultural structure and it is needed to know the coping mechanisms and mental health promotion strategies and it is the aim of this study. Methods This is a qualitative study. Th...

ژورنال: مجله طب نظامی 2020

Background and Aim: The military personnel face many stressors. This study aimed to identify coping mechanisms in the face of stressors in military personnel. Methods: This is a cross-sectional study and the sample was 384 of staffs affiliated to Iranian Navy Force, who were selected by cluster random sampling. Data collection tools were demographic questionnaire, a military stressors questionn...

2010
Enric Celaya

An interval propagation method for spherical kinematic loops is used in a branch and prune algorithm to solve the direct kinematics of parallel spherical mechanisms. The algorithm finds all solutions with a desired resolution. The use of specific properties of the rotation equations involved allows the method to be more efficient than more general algorithms for this problem.

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