نتایج جستجو برای: in hand manipulation skills

تعداد نتایج: 17019644  

2013
Gang Cheng

In-hand manipulation, as a behavior mastered by human, primates and a few kinds of other animals, involves a hand and objects. Transfering these manipulation skills to service-robots is an open and important research topic in the field of robotics. Driven by the hand movements the objects are moved. The hand movements are considered as actions, and we expect the objects to be moved to their des...

Journal: :CAAI Transactions on Intelligence Technology 2020

1997
Attawith Sudsang Jean Ponce

This paper addresses the problem of manipulating three-dimensional objects with a reconng-urable gripper. A detailed analysis of the problem geometry in connguration space is used to devise a simple and eecient algorithm for manipulation planning. The proposed approach has been implemented and preliminary simulation experiments are discussed.

1998
Kamal K. Gupta

| We describe a global motion planner for manipulating 3D objects by a dextrous robotic hand. We focus on the so-called re-connguration problem: nd a feasible trajectory (motions and contact forces) that moves a hand-object system from an initial grasp to a nal desired connguration of the object. The planner is designed as a three-level process combining a graph search on the conngu-ration spac...

2003
Takami Yasuda Shigeki Yokoi Jun-ichiro Toriwaki

1 . I n t r oduc t i on In recent years, high performance graphic work stations (GWS) have been developed which can generate high quality images of computer defined objects in real time. In addition, several input devices are easily implemented on such GWSs. Using these new technologies, we can not only see the motion of the objects in a sequence of CG images, but also manipulate objects define...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1391

the present study aimed at exploring cognitions of iranian english teachers within the context of english for academic purposes (eap). to this end, the cognitions of two groups of eap teachers with respect to their pedagogical content knowledge (pck) and their sense of professional identity (pi) were probed. two language teachers and two content instructors who had at least five years of eap te...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده هنر 1391

now-a-days graphic design plays a major role in influencing culture, society, business, and customers, in such a way that one could look upon every individual as a potential customer. graphic designers seek to identify customers needs and find an intelligent solution for them. correct identification and understanding of those needs is the first step towards achieving ones goals. marketing knowh...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2001
R S Johansson G Westling A Bäckström J R Flanagan

We analyzed the coordination between gaze behavior, fingertip movements, and movements of the manipulated object when subjects reached for and grasped a bar and moved it to press a target-switch. Subjects almost exclusively fixated certain landmarks critical for the control of the task. Landmarks at which contact events took place were obligatory gaze targets. These included the grasp site on t...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم انسانی 1393

recent studies in scientific education as well as foreign and second language instruction suggest that thinking has rarely been an integral part of education and training in classroom. some scholars decried the lack of emphasis on thinking in the institutes and schools. they noted that memorization and drills were rewarded,while inquiry, reflection, and consideration of alternatives were frowne...

عباسی , سمیه, هادیان , محمدرضا,

Background and purpose: Down syndrome children not only have delayed motor development but also have many difficulties for acquiring motor skills, particularly in upper extremities. Hence, the aim of study was to investigate the effects of eye- hand coordination activities on hand skills in educable children with Down syndrome. Materials and methods: Fifteen children with Down syndrome (7-...

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