• 제목/요약/키워드: grasp

검색결과 2,709건 처리시간 0.035초

(마이크로명려어 정의어 설계 (Design of Microinstruction Definable Language)

  • 신봉희;이필재;신인철
    • 전자공학회논문지B
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    • 제31B권10호
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    • pp.92-98
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    • 1994
  • In this paper, each step of microprogramming was discussed using a microprogrammable machine that would grasp the characteristics of the microprogram in close relation to the hardwares and microinstruction definable language which make an effective microcode. This was proposed for an environment which minimizes costs.

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다지 로봇손의 작업에 따라는 최적 파지 형상 (Task-oriented optimal grasp configurations for multifingered robotic hands)

  • 정낙영;최동훈;서일홍
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1990년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 26-27 Oct. 1990
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    • pp.57-61
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    • 1990
  • An optimal graspiftg algorithms for a multifingered robotic hand is proposed, where a new quality measure is developed to evaluate task-oriented as well as stability by modelling the tasks as ellipsoids. To show the validities of the proposed algorithm, several numerical examples are presented by employing a 3-fingered robotic hand.

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이상계 혼합기에서의 분진운의 공간분포에 대한 평가 (Evaluation for Space Distribution of Dust Cloud in Hybrid Mixtures)

  • 한우섭;정국삼
    • 한국안전학회지
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    • 제10권1호
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    • pp.35-40
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    • 1995
  • This study dealed with problem to estimate the uniformity of dust clouds, as a fundamental study to estimate the ignition hazardous evaluation of hybrid mixtures. The developed method was proposed to grasp space distribution of dusts, and also, an experimental apparatus considering with dispersion and reproduction of dusts were uniquely devised and studied.

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무궁화객차의 곡선주행성능 연구 (A Study on Running Performances of Mugungwha Coach in Curves)

  • 허현무;이찬우
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 1999년도 춘계학술대회 논문집
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    • pp.192-199
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    • 1999
  • In this study, we have analyzed the running performance of Mugungwha coach in curves to grasp the problems relating to this coach's curving performance and present improvement plans. Simulations and tests to analyze curving performances are carried out, and through this Process we could prepare a plan to improve the running performance in operation.

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현대 패션에 표현된 Goth 스타일 연구 (A Study of Goth Style Expressed in Contemporary Fashion)

  • 박은경;정현숙
    • 복식
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    • 제55권6호
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    • pp.159-171
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    • 2005
  • The Goth style arouses Medieval syndrome, nostalgia and decadence, considering that Goth style shown in the contemporary fashion rend, tradition and fantasy that appeared in transition of the 21st century. This study is based on documents related to real Goth festivals and events to grasp various characteristics of Goth street style. The Goth style shown in high fashion classified the style on the basis of characteristics of camp culture from the viewpoint of bottom up from non-mainstream to mainstream with catwalk as the central figure. Considering appearance of Goth, property of subculture after the 1980s as alternative subculture as well phenomenon of latter subculture. Also it was possible to grasp attribute of lifestyle shown in music and fashion code from the viewpoint that alternative subculture was in pursuit of individual personality and autonomy. As an alternative subculture, Goth that appeared in UK from the late 1970s to the early 80s is considered new lifestyle, which means the scene of modern underground.

Design of Three-Finger Hand System

  • 심병균;이우송;박인만;황원준;김원일
    • 한국산업융합학회 논문집
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    • 제17권1호
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    • pp.21-26
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    • 2014
  • The focus of this paper is the designing a flexible three fingered hand system with 16 D.O.F for dynamic manipulation with an intelligent controller, and to build a useful database for dynamic manipulation based on the experimental results. The weight of the hand module is only 0.7 kg, but flexible motion and powerful grasping are possible. To achieve such a dynamic motion in a robotic hand, we have developed a flexible fingered hand with a control system incorporating image recognition system in which we deal with the problems of not only accuracy and range of motion but also the flexibility of hand. The fingers are arranged so as to grasp both circular and prismatic objects. In order to achieve the light mechanism, we reduced the number of joints and fingers as much as possible. We used three fingers, which is the minimum number to achieve a stable grasp.

Strengthened connections between engrams encode specific memories

  • Kim, Ji-il;Choi, Dong Il;Kaang, Bong-Kiun
    • BMB Reports
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    • 제51권8호
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    • pp.369-370
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    • 2018
  • In previous studies, memory storage was localized to engram cells distributed across the brain. While these studies have provided an individual cellular profile of engram cells, their synaptic connectivity, or whether they follow Hebbian mechanisms, remains uncertain. Therefore, our recent study investigated whether synapses between engram cells exhibit selectively enhanced structural and functional properties following memory formation. This was accomplished using a newly developed technique called "dual-eGRASP". We found that the number and size of spines on CA1 engram cells that receive inputs from CA3 engram cells were larger than at other synapses. We further observed that this enhanced connectivity correlated with induced memory strength. CA3 engram synapses exhibited increased release probability, while CA1 engram synapses produced enhanced postsynaptic responses. CA3 engram to CA1 engram projections showed strong occlusion of long-term potentiation. We demonstrated that the synaptic connectivity of CA3 to CA1 engram cells was strengthened following memory formation. Our results suggest that Hebbian plasticity occurs during memory formation among engram cells at the synapse level.

가청화를 이용한 고소음 작업장의 흡음대책 평가 (Evaluation on Attenuation for Sound-absorbing Measures of Loud Noisy Work-site using Auralizational Technique)

  • 윤재현;김재수
    • 한국소음진동공학회논문집
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    • 제20권8호
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    • pp.742-752
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    • 2010
  • In case of the working machine that using in the loud-noisy workplace, as it generates the loud-noise, it is influencing a physical, mental bad effect to those workers. Accordingly, though the noise countermeasure for the loud-noisy workplace is acutely requiring, until now, those methods that wearing the soundproof-protection tool, or restriction the working hours, and minimize the noise exposure volume, were mainly used. However, such noise countermeasures occur many problem points. On such point of view, using the acoustic simulation technique, let the workers to choose the workplace where suffering many damages due to the noise of working machine, and after grasp the physical property of working machine and indoor acoustic characteristic, this Study has attempted to grasp the reduction degree of noise level at before-improvement?after-improvement, through the sound-absorption measure. Passing through such preceding step, using auralizational technique based on the noise of working machine of before-improvement after-improvement, and by conduct psycho-acoustics evaluation, this study intended to investigate the change degree of subject reaction. As the result of evaluation, it is considering that the noise-reduction countermeasure method for the loud-noisy workplace could be much effective, through the sound-absorption measure.

2010, 2011년 학업성취도 평가에서 나타난 중학교 학생들의 학업 특성 (The Characteristics of Study of Middle School Students Appeared in 2010, 2011 National Assessment of Educational Achievement)

  • 조윤동
    • 한국수학사학회지
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    • 제25권3호
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    • pp.97-117
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    • 2012
  • 정부는 기존의 교육과정과 교육 정책을 점검하고 개선하기 위한 자료의 하나로 국가수준 학업성취도 평가 결과를 활용하고 있다. 이러한 노력을 기울이는 까닭은 학생들의 학력을 신장시키기 위함이다. 이때 학생들의 학력을 높이기 위해서 가장 기본이 되는 것의 하나는 그들이 어느 내용에서 취약한가를 밝히는 것이다. 다음으로 해당되는 내용을 가르치는 방법을 개선하는 것이다. 그래서 이 글에서는 먼저 2010, 2011년 국가수준 학업성취도 평가 결과에서 나타난 중학교 학생 전체와 남녀학생별 경향을 파악하고 있다. 이를 바탕에 두고 학생 전체와 남녀학생별로 어떤 내용에서 취약한지를 파악하고 그에대한 교수 학습의 시사점을 제시하고 있다.