색상 비율평정으로 확인한 한국인의 심리적 고유색

박현수,이만영 한국인지및생물심리학회 2006 한국심리학회지 인지 및 생물 Vol.18 No.2

Two experiments based on hue scaling were conducted to identify the psychological unique hues corresponding to the opponent colors of Hering (1878)'s theory. Recently, Kuehni (2001a) used a color-chip selection task to identify the unique hues of English speakers and found different results from those of Oh et al. (2003) and Pak et al. (2005) where similar tasks were used with Korean speakers. The present set of experiments used different experimental tasks to ascertain whether the discrepancy between previous results was caused by task differences or genuinely different psychological representations of unique hues in speakers of different languages. Experiment 1 adopted a single-hue scaling paradigm frequently used in similar studies and Experiment 2 used a double-hue scaling paradigm that reflects Hering's opponent theory. Munsell color-chips were used in both tasks and the results supported the findings of Oh et al.(2003) and Pak et al.(2005) rather than those of Kuehni (2001a). The findings suggest that differences in unique hue judgments between speakers of different languages lie at a deep representational level and are not an artefact of the experimental task methodology. Theoretical implications of discrepant psychological unique hues across speakers of different languages are discussed. Hering의 대립색에 해당하는 심리적 고유색을 확인하기 위하여 색상비율평정에 기초한 두 개의 실험을 실시하였다. 최근에 색편선택과제를 사용하여 고유색을 확인하고자 한 오경기 등(2003)과 박현수 등(2005)의 국내 연구결과는 유사한 과제를 사용한 Kuehni(2001a)의 영어권 연구결과와 일부 색상에서 불일치하였다. 따라서 본 연구에서는 그러한 불일치가 실험과제의 차이 때문인지 아니면 언어에 따른 고유색 본래의 심리적 표상의 차이 때문인지를 알아보기 위하여 다른 실험과제들을 사용하였다. 실험 1에서는 단색광을 이용한 고유색 연구에서 많이 사용되었던 단일색상 비율평정을 실험과제로 사용하였고, 실험 2에서는 Hering의 대립색 이론을 잘 반영한다고 할 수 있는 이중색상 비율평정을 실험과제로 사용하였다. 선행연구들과 마찬가지로 먼셀 색편을 실험자극으로 사용한 본 연구의 실험결과들은 Kuehni(2001a)의 연구결과보다는 오경기 등(2003)과 박현수 등(2005)의 연구결과에 더 가까웠다. 그러한 결과는 상이한 언어사용자들이 보이는 고유색 판단의 차이가 실험과제의 부산물이 아니라 심층 표상수준에서 비롯되었음을 시사한다. 상이한 언어사용자들에서 나타난 심리적 고유색의 불일치가 갖는 이론적 함의들을 논의하였다.

컴퓨터 바둑에서 계가 알고리즘

박현수 대한전자공학회 2007 電子工學會論文誌-CI (Computer and Information) Vol.44 No.1

This paper presents a method of score counting for computer Go that includes the consideration of stability, management of dead stones, and an algorithm for score counting. Thus, method for managing dead stones, filling all dames, and making additional moves is presented, along with a score-counting algorithm, where dames are defined as empty points that are not included in the area of a group, while additional moves are required for life when filling all the dames. In experiments using the final positions of 362 games, a mean error of 8.66, 5.96, and 4.15 was recorded for the score counting produced by the CGoban, HandTalk, and proposed methods, respectively. The proposed method was confirmed by experiments where it was success fully applied to the final positions. 본 논문은 컴퓨터 바둑에서 계가 알고리즘의 방법을 제안한다. 제안된 방법은 안정도의 고려와 죽은 돌에 대한 처리 그리고 계가 알고리즘으로 이루어진다. 저자는 죽은 돌의 처리를 위한 방법과 빈 공배의 채움, 그리고 가일수에 대한 방법을 제안한다. 제안한 계가 알고리즘에서는 공배를 그룹의 영역에 포함되지 않은 빈 점으로 정의하고 가일수를 모든 공배를 채우는 과정에서 삶을 위해 강요되어지는 수로 정의한다. 362개의 종료된 게임을 사용하여 실험하였으며, 그 결과 CGoban, HandTalk과 제안한 방법에서 각각 8.66, 5.96 그리고 4.15의 평균 에러 값을 얻었다. 제안된 방법은 실험을 통해 종료된 게임에 성공적으로 적용됨을 검증한다.

INSTITUTIONAL VULNERABILITY AND POWER SYSTEM DISTURBANCES IN THE UNITED STATES

박현수 한국행정학회 2012 International Review of Public Administration Vol.17 No.2

The Institute for Poverty Alleviation and International Development (IPAID) , South Korea This paper observes general patterns of large-scale blackouts, using North America Electricity Reliability Corporation (NERC) data on power system disturbances. The research focus is on the challenge of physical complexity, the characteristics of institutions, and organization conditions that should be overcome by good organizational performance. Using event history analysis, this study tests whether these structural conditions are managed in a manner that is sufficiently integrated and sophisticated at the institutional level. The major findings of this study are as follows. The vulnerability of utilities increases as the size of power systems increases. Vulnerable utilities are located in the reliability regions where strict contractual penalties are not applied, where emergency plans are not as complex as the complex systems, or where regulatory relationships with federal and state governments are weak. These utilities have higher summer peaks per customer, face more electric power losses than others, or invest less in facilities and technologies.

한ㆍ일 한자어 접미사 「-風」의 의미적 결합관계에 관한 연구

박현수,이강민 한양대학교 일본학국제비교연구소 2014 비교일본학 Vol.31 No.-

본고는 한국어와 일본어에서 접미사 「-風」이 결합하는 연체수식구조의 용례를 통하 여 후행어기 N2의 의미 분포와 접미사 「-風」의 의미 범주를 관련지어 고찰하는 것을 목적으로 하고 있다. 일본어와 한국어의 용례를 각각 추출하여 N2의 의미 분포를 분석한 결과 「요리」「인 물」「음악」항목이 양국 간 빈도 수가 크게 차이가 나는 것을 확인할 수 있었다. 이 세 가지 항목을 중심으로 일부 용례를 제시하여 한국어와 일본어 속에서 「-風」이 어떠한 점에서 공통점을 지니고 차이점을 지니는지 비교 대조 분석을 시도하였다. 그 결과 요리 항목에 있어서는 일본어가 한국어보다 높은 결합도를 보였으며 「-風」 의 의미 범주 또한 ①양식, 분위기를 첨가하는 용법과 ②비유적인 용법 등 다양하게 나 타났음을 확인하였다. 인물 항목에서는 일본어와 한국어가 공통적으로 「-風」이 비유의 용법으로 쓰이고 있음을 알 수 있었다. 음악 항목에서는 한국어가 일본어보다 높은 결 합도를 보였으며 이는 특정 가수나 곡명에 「-風」을 붙이는 구조가 일본어에서는 드물 게 나타나기 때문이라고 생각된다. 아직 한국어와 일본어 사이의 「-風」에 대한 연구는 진행되고 있지 않은 것이 현실 이며 유사한 의미 범주를 가지고 있는 양국의 「-風」에 대한 비교 연구를 시도하였다는 점에 그 의의가 있다고 할 수 있을 것이다. This study started to contemplate the semantic categories of Chinese character suffix 「fu」 in terms of semantic combination from the adnominal modifier constructions in Korean and Japanese language. Analyzing semantic categories of the following base(N2) from examples of Korean and Japanese language, it was verified that there are the differences in terms of frequency of items of food, person and music between the two countries. With this three items as the center, the similarities and differences of 「fu」 in Korean and Japanese language were attempted to compare. As a result, in the fields of food, the degree of combination in Japanese were higher than Korean. Also, it was determined that semantic categories of 「fu」 are shown in two different usage, ①adding the form or atmosphere, ②metaphorical expression. In the fields of person, 「fu」 is used in the usage of metaphorical expression in common between Korean and Japanese. In the fields of music, the degree of combination in Korean were higher than Japanese. This is assumed that the structures combining 「fu」 with the specific singers or title of songs are rarely appear. It has not been studied on 「fu」 between Korean and Japanese. It can be said that it is a meaningful attempt in terms of comparative study on 「fu」 that have the similar semantic categories.

The Pathophysiologic Roles of TRPM7 Channel

박현수,홍찬식,김병주,서인석 대한약리학회 2014 The Korean Journal of Physiology & Pharmacology Vol.18 No.1

Transient receptor potential melastatin 7 (TRPM7) is a member of the melastatin-related subfamilyand contains a channel and a kinase domain. TRPM7 is known to be associated with cell proliferation,survival, and development. It is ubiquitously expressed, highly permeable to Mg2+ and Ca2+, and itschannel activity is negatively regulated by free Mg2+ and Mg-complexed nucleotides. Recent studieshave investigated the relationships between TRPM7 and a number of diseases. TRPM7 regulates cellproliferation in several cancers, and is associated with ischemic cell death and vascular smooth musclecell (VSMC) function. This review discusses the physiologic and pathophysiologic functions andsignificance of TRPM7 in several diseases.

컴퓨터 바둑에서 돌의 영향력, 영향력점 그리고 영향력영역에 대한 연구

박현수 한국게임학회 2007 한국게임학회 논문지 Vol.7 No.4

본 논문은 컴퓨터 바둑에서 돌의 영향력(Stone Influence)과 영향력점(Influence Point) 그리고 영향력 영역(Influence Area)을 제안한다. 돌의 영향력은 놓인 돌과 빈 정점사이의 거리에 따라 정의하며, 영향력점은 돌의 영향력에 대해 임계치를 이용하여 정의한다. 형세평가를 위한 요소로 영향력 영역을 영향력점 덩어리와 코어를 이용하여 정의한다. 저자는 정석 자료를 이용한 실험을 통해서 영향력점의 임계치를 구하였으며, 영향력 영역이 바둑 게임에서 세력으로 성공적으로 적용 가능하였습니다. This paper presents the Stone Influence, the Influence Point, and the Influence Area on computer Go. The Stone Influence is defined using the distance between stone and empty point. The Influence Point is defined using threshold value on the Stone Influence. The Influence Area is defined using lump of the Influence Points and its Core. In experiments using the Jeongseok data, the author obtained the threshold of Influence Points. The proposed method was verified by experiments where it was success fully applied to the influence in game of Go.

함정 탐지 회피를 위한 자기처리소 자기장 분리 알고리즘 개발

박현수,김휘석,윤관섭 한국자기학회 2011 한국자기학회 학술연구발표회 논문개요집 Vol.2011 No.6

지대주 연결 형태와 골질에 따른 저작압이 임프란트 주위골내 응력분포에 미치는 영향

박현수,임성빈,정진형,홍기석,Park, Hyun-Soo,Lim, Sung-Bin,Chung, Chin-Hyung,Hong, Ki-Seok 대한치주과학회 2006 Journal of Periodontal & Implant Science Vol.36 No.2

Oral implants must fulfill certain criteria arising from special demands of function, which include biocompatibility, adequate mechanical strength, optimum soft and hard tissue integration, and transmission of functional forces to bone within physiological limits. And one of the critical elements influencing the long-term uncompromise functioning of oral implants is load distribution at the implant- bone interface, Factors that affect the load transfer at the bone-implant interface include the type of loading, material properties of the implant and prosthesis, implant geometry, surface structure, quality and quantity of the surrounding bone, and nature of the bone-implant interface. To understand the biomechanical behavior of dental implants, validation of stress and strain measurements is required. The finite element analysis (FEA) has been applied to the dental implant field to predict stress distribution patterns in the implant-bone interface by comparison of various implant designs. This method offers the advantage of solving complex structural problems by dividing them into smaller and simpler interrelated sections by using mathematical techniques. The purpose of this study was to evaluate the stresses induced around the implants in bone using FEA, A 3D FEA computer software (SOLIDWORKS 2004, DASSO SYSTEM, France) was used for the analysis of clinical simulations. Two types (external and internal) of implants of 4.1 mm diameter, 12.0 mm length were buried in 4 types of bone modeled. Vertical and oblique forces of lOON were applied on the center of the abutment, and the values of von Mises equivalent stress at the implant-bone interface were computed. The results showed that von Mises stresses at the marginal. bone were higher under oblique load than under vertical load, and the stresses were higher at the lingual marginal bone than at the buccal marginal bone under oblique load. Under vertical and oblique load, the stress in type I, II, III bone was found to be the highest at the marginal bone and the lowest at the bone around apical portions of implant. Higher stresses occurred at the top of the crestal region and lower stresses occurred near the tip of the implant with greater thickness of the cortical shell while high stresses surrounded the fixture apex for type N. The stresses in the crestal region were higher in Model 2 than in Model 1, the stresses near the tip of the implant were higher in Model 1 than Model 2, and Model 2 showed more effective stress distribution than Model.

Cell의 환경변화에 따른 발전량 측정 및 예측에 관한 연구

박현수,김동훈,이준희,하헌석 한국산업경영시스템학회 2010 한국산업경영시스템학회 학술대회 Vol.2010 No.춘계

치근 이개부 병소의 치근처방법에 따른 주사현미경적 연구

박현수,임성빈,정진형,Park, Hyun-Su,Lim, Sung-Bin,Chung, Chin-Hyung 대한치주과학회 1997 Journal of Periodontal & Implant Science Vol.27 No.1

In periodontal regeneration treatment, access to the frucation area is very difficult. Thus complete removal of plaque, calculus and endotoxin is somewhat impossible. In this study, teeth that were extracted due to periodontal disease were used. The furcation area was treated with periodontal curette, ultrasonic scaler, roto bur and they observed using SEM. The result was follows 1. The group treatment with curette showed remaining plaque, the cementum existed in most of the surface and partial dentinal tubule orifice could be seen. 2. The group treatment with ultrasonic scaler showed less removalof plaque compared to curette and irregular surface could be seen. 3. The group treatment with roto bur showed cleaner surface and many dentinal tubule orifice could be seen compared to the curette and ultrasonic scaler groups. Thus when suing treatments such as bone grafting or guided tissue regeneration, it is considered that the furcation area should be treatment with Roto bur.