• Title/Summary/Keyword: 양상성

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The Cerebral activation of Korean visual word recognition in Ventral stream (한글 시각단어재인의 초기처리과정에 대한 대뇌 활성화 양상 : 'VWFA(visual word from area)'를 중심으로)

  • Sohn, Hyo-Jeong;Jung, Jae-Beom;Pyun, Sung-Bum;Song, Hui-Jin;Lee, Jae-Jun;Min, Sung-Ki;Chang, Yong-Min;Nam, Ki-Chun
    • Proceedings of the Korean Society for Cognitive Science Conference
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    • 2006.06a
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    • pp.119-123
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    • 2006
  • 문자는 의사소통의 중요한 매개체 중 하나로 사람이 문자를 인식할 때, 글자의 크기나 모양, 위치, 글 자체 등의 매우 다양한 지각적인 변화에 의한 영향을 크게 받지 않는다. 이는 문자에 대한 처리가 다른 사물과는 다소 다르게 일어나며 머릿속에 추상적인 형태(abstract form)로 저장되어 있음을 의미한다. 이러한 처리과정은 시각단어재인 과정에서 어휘 지식에 접근하기 위한 중요한 단계로 여겨지면서 이와 관련된 대뇌 영역의 국재화 양상에 대한 연구들이 진행되고 있다. 본 연구에서는 한글 시각단어재인에 있어 Cohen과 Dehaene 등이 'visual word form area'주장하고 있는 좌측 ventral occipito-tempoarl region의 대뇌 활성화 양상을 살펴보았다. 실험 결과, 좌측 'VWFA'는 어휘의 친숙성에 우뇌의 대측 지점은 어휘성(lexicality)에 민감한 것으로 나타났다.

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Check of Concurrency in Parallel Programs using Image Information (영상정보를 이용한 병렬 프로그램내의 병행성 판별)

  • Park, Myeong-Chul;Ha, Seok-Wun
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.10 no.12
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    • pp.2132-2139
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    • 2006
  • A parallel program including a nested parallelism has a complex execution aspects and tasks are executed concurrently. This concurrency is a main cause raising most of errors. In this paper, a new method for checking concurrency between two tasks is proposed. The existing techniques for checking the concurrency have their limits to represent a global structure. A new labeling technique that appropriate for image visualization is proposed. To show the global structure by imaging of execution aspects through region partition on 2D plane. On the basis of it, each of the tasks that can distinguish the ordered relation create an independent image. Image information generated by the result simplifies semantic analysis of the related task, and provides an outline of a global execution aspects structure of the program to user effectively.

Long Term Follow-Up of Cyclic Vomiting Syndrome (주기성 구토증(cyclic vomiting syndrome)의 장기 추적 관찰 -이형 편두통(migraine variant)으로의 이행 과정인가?-)

  • Hwang, Jin-Bok;Oh, Hee-Jong;Choi, Kwang-Hae
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.3 no.1
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    • pp.75-83
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    • 2000
  • Cyclic vomiting syndrome(CVS) is a disorder of unknown etiology that is characterized by its clinical pattern of intermittent episodes of severe vomiting, similar in time of onset and duration, with no symptoms during the intervening period. By definition, CVS is an idiopathic disorder that requires exclusionary laboratory testing. Not only can it be mimicked by many specific disorders, eg, surgical, neurologic, endocrine, metabolic, renal, but within idiopathic CVS there may be specific subgroups that have different mechanisms. It has been reported that CVS usually begins in toddlers and resolves during adolescence. Migraine is also self-limiting episodic condition of children and the clinical features of migraine and CVS show considerable similarity. It is proposed that CVS is a condition related to migraine. This paper reports clinical courses of long term follow-up and reversible EEG changes in three patients whose history included CVS. Clinical situations of attack interval, duration and associated symptoms had changed variablely in each patients through long term follow-up period. Cyclic vomiting subsided in two cases. Abnormal delta activity was seen during episodes and resolved at follow-up, when the patient asymptomatic. The brain wave changes support the interpretation of CVS as a migraine variant.

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Hot-water soluble on Waxy Black Rice and Waxy Rice Flours (찰흑미와 일반찰벼의 열수가용성 물질)

  • Oh, Geum-Soon;Kim, Kwan;Choi, Gyeong-Cheol;Na, Hwan-Sik;Kang, Gil-Jin;Kim, Sung-Kon
    • Korean Journal of Food Science and Technology
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    • v.34 no.2
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    • pp.343-345
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    • 2002
  • The study was investigated hot-water soluble on waxy black and waxy rice flours according to gelatinization temperatures and heating time. The hot-water soluble contents of both samples were increased during heating time at $90^{\circ}C$. The waxy black and waxy rice flours solutions according to gelatinization temperatures ($80^{\circ}C,\;90^{\circ}C,\;95^{\circ}C\;and\;98^{\circ}C$) were heated for 10, 20 and 30 min. Determination of elution patterns of rice flours was used by Sepharose CL-2B column. As a result, the elution patterns were eluted the most in void volume ($V_0$) and the elution patterns of the hot-water solubles were increased according to heating time and gelatinization temperatures.

A Comparative Analysis of the Academic Achievements, Learning Attitudes, and Career Compromising Processes of the Undergraduate Students in the Colleges of Engineering According to Their Levels of Major-Career Connection : Focusing on the Engineering Students in Seoul National University (공과대학 학생의 전공-진로 일치 여부에 따른 학업 성취, 태도 및 진로타협 양상 비교 분석: 서울대학교 공과대학 사례를 중심으로)

  • Choi, Jung-Ah;Lee, Hee-Won
    • Journal of Engineering Education Research
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    • v.15 no.2
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    • pp.20-29
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    • 2012
  • The purpose of this study was to explore the academic achievements, learning attitudes, and career compromising processes for successful undergraduate students in the College of Engineering. To achieve this goal, research was conducted to analyze whether there was a strong major-career connection among Engineering students of Seoul National University. Afterwards, differences in levels of academic achievement, learning attitude, and academic aspiration were analyzed between students who had achieved a major-career match and students who had not. As a result, it was found that the level of major-career connection was highly correlated to the level of academic achievement; furthermore, learning attitudes were strongly related to the level of motivation towards a high academic achievement, and influenced future learning attitudes as well. These findings suggest that further academic support, career guidance, and major switching policies are needed for undergraduate students in Colleges of Engineering.

Identification of Dominant Cause of Cut-Slope Collapse and Monitoring of Reinforced Slope Behavior (개착사면의 붕락요인 분석 및 보강거동 계측)

  • Cho, Tae-Chin;Lee, Sang-Bae;Lee, Guen-Ho;Hwang, Taik-Jean;Kang, Pil-Gue;Won, Byung-Nam
    • Tunnel and Underground Space
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    • v.21 no.1
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    • pp.20-32
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    • 2011
  • Failure aspects of cut-slope, which induce the sequential collapses during the excavation stage, have been analyzed. Slope rock structures are investigated by examining the orientations and positions of discontinuity planes calculated based on the BIPS image inside the boreholes. Drilled core log has been also used to identify the structural defects. Clay minerals of swelling potentials are detected through XRD analysis. Numerical analysis for slope stability has been performed by utilizing the joint shear strength acquired from the direct joint shear test. Cut-slope collapse characteristics have been studied by investigating the posture of failure-prawn joint planes and the stability of tetrahedral blocks of different sizes. Cross-section analysis has been also performed to analyze the cut-slope behavior and to estimate the amount of reinforcement required to secure the stability of cut-slope. Behavior of reinforced cut-slope is also investigated by analyzing the slope monitoring data.