복합항법센서를 갖는 수중운동체의 정밀 유도제어 정확도 분석

한용수,현철,정동민,Han, Yongsu,Hyun, Chul,Jeong, Dongmin 한국정보통신학회 2015 한국정보통신학회논문지 Vol.19 No.11

To obtain the system requirement specification in the beginning of the precision guidance and control system development, the effectiveness and reliability analysis for the system are necessary. The main purpose of this research is to obtain the system requirement specification by carrying out the effectiveness analysis using the modeling and simulation(M&S) scheme. M&S model is constructed using 6-DOF dynamic model, environment model, guidanc -navigation & control model. Assume that the navigation sensor is consist of inertial navigation sensor(INS) and doppler velocity log(DVL), and the speed and direction of current is environment parameter. The effectiveness analysis is carried out using circular error probability(CEP) and variance analyze scheme. Also, the effectiveness analysis is utilized for cost-performance analysis considering the cost of commercial INS and DVL sensor. This paper shows the high-level INS and the low-level DVL configure a high price-performance integrated navigation system. 유도제어 시스템 체계 개발의 초기단계에는 운용 효과도 도출 및 요구사항 적합성 검토를 통한 체계 개략사양도출을 위해 효과도 분석을 수행한다. 본 논문에서는 M&S (Modeling & Simulation)를 활용하여 항법센서 성능과 환경영향(조류의 세기와 방향)에 따른 유도제어 시스템의 목표점 도달 정확도에 대한 운용 효과도 분석을 수행한다. 효과도 분석을 위해 6자유도 운동모델, 환경모델, 유도항법제어모델을 구성한다. 항법센서는 관성항법센서(Inertia Navigation Sensor, INS)와 도플러 속도센서(Doppler Velocity Log, DVL)로 구성하고, 환경변수는 조류(current)의 세기와 방향이다. 수치 시뮬레이션 결과는 CEP(Circular Error Probability)와 분산을 이용한 확률분석으로 분석한다. 효과도 분석 결과는 항법센서의 가격을 고려한 비용 대비 효율 분석에 활용하여 가격 대비 높은 성능의 센서 사양을 도출할 수 있다. 본 논문에서는 높은 수준의 INS와 낮은 수준의 DVL을 이용하면 가격 대비 성능이 높은 복합항법센서를 구성한다는 것을 보여준다.

안외상의 통계적 고찰

한용수,신경환,Yong Soo Han,M,D,Kyung Hwan Shyn,M,D 대한안과학회 2005 대한안과학회지 Vol.46 No.1

Purpose: We investigated the regional characteristics and new currents of ocular injuries and use the results for the prevention and treatment of ocular injuries. Methods: We retrospectively surveyed 1115 eyes of 1013 patients who visited Gachon medical center from January 1, 2003 to December 31, 2003. The incidence of ocular injuries, sex, age, monthly and seasonal distribution, causes, diagnosis, visual acuity and complications were reviewed statistically. Results: The incidence of ocular injuries was 4.2%. The incidence was more common in males (75.8%) and in the 4th decade (22.2%). The patients who needed admission or surgery were 22.2%. Ocular injuries were more common in summer (28.5%) and less in winter (20.4%). The most common cause was industrial accidents (40.0%) and the second common cause was violence (30.9%). The most common injured site was the orbit (36.3%). Among the diagnoses of the inpatients, orbital wall fracture was most common (41.9%). The initial visual acuity was less than 0.1 for 14.2% of the eyes and the final acuity was less than 0.1 of the eyes for 5.2%. Conclusions: This survey gathered the regional characteristics and new currents of ocular injuries.

대졸자와 기업이 원하는 인재의 '사이'

한용수,Han, Yong-Su 한국대학교육협의회 2007 大學敎育 Vol.148 No.-

오플록사신, 레보플록사신 및 씨프로플록사신 점안 후 방수 내 농도 비교

한용수,남동흔,신경환,박지영,김경아,김선욱,송종석,Yong-Soo Han,Dong-Heun Nam,Kyung-Hwan Shyn,Ji-Young Park,Kyoung-Ah Kim,Sun-Wook Kim,Jong-Suk Song 대한안과학회 2005 대한안과학회지 Vol.46 No.4

Purpose: To evaluate the concentrations of commercially available ofloxacin 0.3%, levofloxacin 0.5%, and ciprofloxacin 0.3% topical ophthalmic solutions in human aqueous humor. Methods: Patients scheduled to undergo phacoemulsification and posterior chamber lens insertion for treatment of cataract were enrolled in this prospective study. After informed consent was obtained, patients were randomized to receive 1 drop of ofloxacin 0.3%, levofloxacin 0.5%, or ciprofloxacin 0.3% topical ophthalmic solution 5 times at 1-hour intervals from 6pm one day before surgery and 3 further times at 5-min intervals immediately before surgery. After aspirating approximately 0.1 mL of aqueous fluid by paracentesis, surgery was commenced. We recorded the interval between the last drop and paracentesis. Specimens were stored at -70℃ until assayed by high-performance liquid chromatography. Results: Thirty-four patients were enrolled. 14 male and 19 patients female. The mean age was 59.4 years. The mean concentrations of levofloxacin, ofloxacin and ciprofloxacin in aqueous humor were 577.8 ng/ml, 279.6 ng/ml and 53.0 ng/ml, respectively. The differences of concentration among the three groups were statistically significant. Conclusions: The concentration of levofloxacin 0.5% solution was highest, followed in order by ofloxacin 0.3% and ciprofloxacin 0.3%.

체험현장-베트남 출장을 다녀와서

한용수,Han, Yong-Su 한국전기산업진흥회 1997 電氣産業 Vol.8 No.6

漢語模糊數詞隸屬度分析

韓容洙(Han, Yong-su),李莉(Li Li) 중국어문학연구회 2014 중국어문학논집 Vol.0 No.89

Vagueness is pervasive in various branches of linguistics, including grammar, semantics and phonetics. It is an interdisciplinary matter to precisely express the degree of the vagueness, so as to enhance its accuracy. Mathematics is the most important and precise discipline in natural science. Therefore, it is a good approach to apply the most precise discipline to address the vagueness in humanities. This dissertation takes vague numerals as the object of study and the application of membership function to calculate the degree of vagueness of vague numerals as the research content, so as to analyze the inherent law and the value of the membership in linguistics. After explaining the basic concepts, this dissertation expounds on the degree of membership with three typical examples, to get the convergent point of vagueness in the fuzzy set. In short, the closer the point is to the number of vague numerals, the higher the degree of membership is, vice versa.

魯迅의 초인사상

한용수(Han Yong-Su),이종대(Lee Jong-Dae) 강원대학교 인문과학연구소 2009 인문과학연구 Vol.0 No.22

영국과 청나라는 19세기 중반 두 차례에 걸친 아편전쟁으로 중국인들에게는 봉건적 정치체제의 폐단을 다시금 생각하게 했다. 당시의 지식인들은 정치제도의 개혁을 통해 새로운 정치체계를 수립하려는 운동이 형성되었는데, 康有爲, 梁啓超, 譚嗣同, 嚴復 등이 이러한 정치체제의 개혁에 앞장선 사람들로 계몽사상가 입장에서 중국사회 전반에 걸쳐 만연된 대중들의 봉건적 몽매함을 일깨우려 개혁을 시도하였다. 이러한 계몽운동의 일면을 깨우치기 위해서는 직접적인 사상의 전달보다 효과있는 것은 대중들이 쉽게 인식할 수 있는 수단이 필요하였는데, 그것은 바로 문학을 통한 표현이다. 다양한 문학의 표현을 통해 일반 대중에게 접근하여 사람들의 마음을 움직여서 전하고자 하는 내용을 느끼도록 하는 것이다. 이로 인해 청말 지식인들의 소설에 대한 관념 또한 변화하여 다양한 형태의 작품들이 독자들에게 환영을 받는다. 중국 현대문학 작가 魯迅은 중국 근대기 정신계몽을 일으킨 대표적 인물로 여러 작품을 통해 우매한 백성들을 일깨우며 그들의 정신적 사상을 새로운 시대에 걸맞게 이끌고자 하였다. 魯迅은 서양의 여러 작가들의 영향으로 그 사상적 바탕을 이끌었는데 그중에서도 니체의 사상은 많은 영향을 끼치고 있다. 철학자이며 시인인 니체의 사상은 초인학설과 권력의지론으로 요약할 수 있다. 그는 자본주의 사회의 허위와 죄악을 폭로하고 ‘신은 이미 죽었다’고 제기하며, 과거의 모든 우상과 전통을 철저하게 배척했다. 이러한 니체를 魯迅이 처음 접하게 된 것은 일본 유학 시절이었는데, 魯迅은 니체에 대하여 지대한 관심을 갖고 그의 사상을 통해 근대 유럽의 정신을 받아들였는데, 니체의 초인사상은 魯迅의 작품형성에도 지대한 영향을 끼치고 있다. The Opium War between Qing-Dynasty and the British Empire caused Chinese people to reconsider harmful effects in the political system of deep-rooted feudalism. Some intellectuals begun to develop a movement of establishing the new political system through its reformation. As leaders in its reformation, Kangyouwei, Liangqiqiao, Tansitong, and Yanfu with the viewpoint of enlightenment made the great attempt to awaken the premodern ignorance and lack of enlightenment of people spreaded over all the area in Chinese society. It was necessary for people to have the effective ways of making it very possible to gain easily the knowledge of the enlightenment rather than direct methods of delivering thoughts and ideas in enlightenment. This was supposed to be a certain way from the expression through literature. Literature within various forms of expression could be easy to access the general public and motivate people's mind, and then this way of using literature eventually makes people feel deeply into its contents of enlightenment. Such aspect brought about the changes in general concepts of novel previously written by many intellectuals at the end of period in Ching-Dynasty. As a certain effect from this aspect, literary works appeared within diversity in forms and styles welcomed by readers. Luxun, one of the greatest writers at modern times in China, tried to lead spiritual thoughts into the new ones suitable for changing flows in China and presented spiritual enlightenment in terms of awakening people's ignorance. When considering the main fundamental influence of Luxun's works, the thoughts and ideas of Friedrich Wilhelm Nietzsche affected his works prominently among other sides of influences. Nietzsche, a philosopher and poet, constructed his theory on ‘Uebermensch’ and ‘Will to power’(Wille zur Macht in German). He disclosed the falsehood and badness in society based on capitalism within critical viewpoints. He claimed that God is dead, and thus he excluded completely all of wrong icons, traditional religions, moralism, and value systems existing unconsciously from the past. As soon as Luxun first faced several thoughts in Nietzsche at his times in studying abroad in Japan, he was very interested in studying Nietzsche's ideas and philosophical theories. He couldn't resist accepting these thoughts. In particular, theory on ‘Uebermensch’ influenced very much on Luxun's works.

초기 상태에서의 매입형 영구자석 전동기 제정수 및 회전자 초기각 추정 기법

한용수(Yong Su Han),신호준(Ho Joon Shin),하정익(Jung-Ik Ha) 전력전자학회 2011 전력전자학술대회 논문집 Vol.2011 No.7

본 논문에서는 매입형 영구자석 동기 전동기(IPM)의 회전자 초기각 및 전동기 제정수에 대한 정보가 전혀 없는 초기 상태에서 고주파 주입을 통한 제정수 추정기법을 제안한다. IPM 의 경우 정확한 제정수 추정을 위해서는 회전자의 초기각에 대한 정보를 필요로 한다. 고주파 신호 주입에 의한 주입 센서리스 제어 방법을 적용하여 초기 제정수 추정과 동시에 초기각에 대한 정보를 얻고, 이를 바탕으로 제정수를 보다 정밀하게 추정하게 된다. 제안된 방식은 모든 IPM 모터에 적용가능하며, 제정수와 더불어 초기각의 위치도 얻을 수 있어 전동기 제어의 초기 설정에 용이하다. 모의실험을 통하여 제안된 기법의 타당성을 검증하였다.

신주(神州)·서양의 금기언어

한용수(Han, Yong-Su) 한국동서비교문학학회 2004 동서 비교문학저널 Vol.0 No.11

기능적 자기공명영상의 임상 적용

한용수(Yong Soo Han),한만석(Man-Seok Han) 한국자기학회 2022 韓國磁氣學會誌 Vol.32 No.5

Interest in functional magnetic resonance imaging (fMRI) has been increased in the field of brain function diagnosis. While fMRI has the advantage of having the highest spatial resolution of data and repeatable measurement non-invasively, it is an analytical technique that has limitations in diagnosing the brain function of a subject with reduced brain function. However, in recent years, various studies on basic brain function activation networks have been actively conducted due to the implementation of the ultra-highspeed image measurement method and the systematic supplementation according to the increase in the stability of the system. Therefore, the clinical application of fMRI currently being used and its future direction will be introduced.