가방 하중의 크기와 방식에 따른 척추 정적 자세의 변화

박용현,김영관,김윤혁,Park, Yong-Hyun,Kim, Young-Kwan,Kim, Yoon-Hyuk 대한의용생체공학회 2011 의공학회지 Vol.32 No.3

The aim of this study was to investigate the alteration of lumbar spine and trunk postures on different load-carrying types and amounts under static loading. Two load-carrying types(unilateral carrying: UC vs. bilateral carrying: BC) and four different loads(0, 5, 10, and 15 kg) were randomly tested in this study. Carrying a heavy bag would affect human body posture, specifically lumbar spine curvature, which is considered as one of sources of back problems. Previous studies have not paid attention to the approach of the multisegment model of the lumbar spine and trunk. This study separated two compartments of trunk segment(the lumbar and thorax) in the analysis. The multisegment model of the lumbar spine in addition to Helen-Hayes marker set was used. Eight motion analysis cameras and a force plate were utilized. Ten male subjects(mean mass, $70.6{\pm}3.97$ kg; mean height, $178{\pm}4.18$ m) having no musculoskeletal disease participated in this study. We analyzed trunk angles in three anatomical planes and the spinal curvature in sagittal and frontal planes. Increased loading in both UC and BC significantly resulted in increases in trunk forward lean but only UC induced increases in trunk lateral lean. In addition, increased loading in BC produced flatten lumbar curvature in sagittal plane. As far as coupling motion, subjects tended to use axial rotation of the lumbar spine in transverse plane in response to increased UC loading. Finally, it is concluded that the increased static loading in UC rather than in BC tends to causes combined alterations of the spinal postures(sagittal and transverse planes together), which would be vulnerable to improper mechanical stresses on the spine.

워커(walker)사용 유무가 정상 노인의 보행 동작과 일어서기 동작의 운동학적 변인과 근활성도에 미치는 영향

박용현(Yong-Hyun Park),김영관(Young-Kwan Kim),송원경(Won-Kyung Song),박대성(Dae-Sung Park),김윤혁(Yoon Hyuk Kim) 한국HCI학회 2011 한국HCI학회 학술대회 Vol.2011 No.1

뉴테러리즘 대응을 위한 국제 경찰협력체제에 관한 연구

박용현(Park Yong-Hyun) 한국법학회 2005 법학연구 Vol.19 No.-

Terrorism is defined as the threatened use of force or violence against people or property with the intention of intimidating or coercing societies or governments to solve politicalㆍ religiousㆍsocialㆍethnic conflicts. The terrorist attacks of September 11 shocked the whole world, impressing the fear on the memory. After September 11, terrorism has not been regarded as a story in a fiction movie any more. It has become a major challenge that contemporary people are confronting in the real world. Based on the above understanding, this paper is all significant points regarding 'terrorism' and 'international police cooperation' are examined, analyzed, and arranged chronologically in a comparative view of law. Today, terrorism becomes common and it is not a exaggeration to say that the whole world is in a process of conducting 'A War against Constant Terrorism'. However, it is very challenging to build a system to properly respond the terrorism. Although even a municipal law is enacted based on a strong bond of sympathy in a nation, it has to get through many errors to generate a visible effect. Therefore, it is apparent that in the international level, building a legal system responding to the terrorism is even more challenging due to the difficulty of mediating diverse interests of each nation. However, terrorism is not what needs to be solved in a list of priority, but what ought to be solved with the top priority. In the history of human being, the progress is made after tragic incidents. For example, 'Article 2(4) in Charter of the United Nations' and 'International Human Rights Law' were enacted after World War Ⅱ. Therefore, on the other hand, terrorism is offering to us an opportunity to rebuild international law system which was established after World War Ⅱ. To prevent further terrorism in the future, the punishment of terrorists is very significant, In this context, the most proper solution, overcoming the limits of current system, will be international police cooperation system utilizing its huge organizations, outstanding intelligence system, and reactive capability. For domestic strategies, re-structuring of police organization is required to properly respond to the terrorism. For international strategies, it is necessary to scale up, streamline, and reinforce current Interpole system based on international consensus and eventually to establish Interpole permanently under the United Nations. In other words, Interpole should be changed to an international organization possessing legal restraints at least like WTO to secure the effectiveness. The newly organized Interpole should deal with intelligence service to collect the information to prevent terrorism.

MMORPG의 퀘스트 이해와 플레이어의 다원주의적 이해를 통한 플레이 동기 증강 가능성

박용현(Park Yong-Hyun),녕서가(Ning shujia),경병표(Kyung Byung-Pyo),이동열(Lee Dong-Lyeor) 한국콘텐츠학회 2009 한국콘텐츠학회 종합학술대회 논문집 Vol.7 No.1

MMORPG는 퀘스트를 통해 진행되며 그것을 통해 레벨과 밸런스가 구현된다. 또한 퀘스트는 이야기 전달의 역할보다는 아이템과 경험치와 같은 아바타와 관련된 보상을 통한 동기부여 역할이 강하다. 이러한 상황은 결국 MMORPG를 캐릭터 성장을 위해 퀘스트의 보상을 공부해야 하는 어려운 게임으로 만들어 유저 층의 고착화를 초래하고 있다. 이러한 유저 고착화 해소방안으로 퀘스트 플레이의 동기부여 구조를 밝히고 플레이어에 대한 다원주의(多元主義, pluralism)적인 이해를 통해 다양한 유저의 플레이 동기를 증강 시킬 수 있는 퀘스트의 가능성을 살펴보았다. 플레이어의 다원주의적인 이해 방법은 다양한 유저 층의 선호도를 만족시켜줄 퀘스트를 디자인하고 평가할 수 있는 툴로써 가치가 있을 것이다. MMORPG is being progressed through Quest and the level and the balance are realized. Also, Quest plays a strong role of motivation through compensation related with Avatar such as items and experience points rather than a role of story transfer. This situation finally made MMORPG become a difficult game that players should study the compensation of Quest for growth of a character, so it causes fixation of the user class. As a solving method of the fixation of the users, the possibility of Quest capable of strengthening play motive of various users through clarification of motivation structure of the Quest play and pluralistic understanding about players was investigated. The pluralistic understanding method of players will have values as a tool that can design and evaluate Quest satisfying preference of the various user class.

韓中漁業協定에 관한 硏究

박용현(Park Yong-hyun) 조선대학교 지식경영연구원 2002 지역개발연구 Vol.7 No.2

In December of 1993. South Korea and China initiated negotiation to make a new fisheries agreement for the West and the South Sea. After 6 years and 8 months of negotiation, both countries finally came into an agreement on August 3rd, 2000. However, the agreement did not come into effect immediately due to the failure of agreement on several critical points such as the fishing quota, the range of fishing zone, etc. In April of 2001, two countries reached a complete agreement, which made it effective from Jun 30th, 2001. This study will put a systematic analysis on the fisheries agreement. The purpose of this study is to suggest a guidance for the better fisheries system and provide a basic data for the negotiation between two countries to establish Exclusive Economic Zone (EEZ), which will eventually contribute to national interests. In order to reach the above goals. this study will review the background and process of fisheries agreement and analyze the contents of the agreement. The method of study is bibliographic research, using all materials on the process of negotiation and the international law of the sea.

가속도 센서를 이용한 호흡률 모니터링

박용현(Yong Hyun Park),김정연(Jung Yeon Kim),정경권(Kyung Kwon Jung) 대한전자공학회 2019 대한전자공학회 학술대회 Vol.2019 No.11

인터넷을 활용한 테러 대응의 법사회학적 접근

박용현(Yong-Hyun Park) 한국컴퓨터정보학회 2007 韓國컴퓨터情報學會論文誌 Vol.12 No.3

본 연구는 오늘날 뉴테러리즘 환경 하의 테러대응체제를 구축하기 위하여, 그 중에서도 특히 테러 피해의 최소화를 위한 가장 효과적인 대응책 중의 하나인 예방홍보에 대한 중요성을 일깨우고, 나아갈 방향을 제시하여 준다는 목적을 연구의 출발점으로 삼아 이를 법사회학적 측면에서 고찰하였다. 공공매체를 통한 정부기관의 홍보는 국민들의 참여를 촉진시키고 인식을 향상시키는데 중요한 역할을 수행하게 된다. 따라서 테러발생의 환경변화에 따른 테러예방을 강화하기 위해서는 고도 정보화 사회에 적합한 테러예방 홍보수단으로서 국민에게 한발짝 다가설 수 있는 적극적인 방안이 모색되어야 한다. 이를 위한 방안으로써 본 연구에서는 우선적으로 테러 대응체제로서 경찰조직과 공중과의 관계성에 대하여 논의하였으며, 양자의 관계정립의 활성화 통하여 효율적인 테러예방을 위한 홍보방안들에 대해서 논의하였다. 여기에는 오늘날 인터넷이 갖는 장점을 최대한 활용하여 어떻게 하면 테러예방 홍보효과를 극대화할 것인가에 궁극적인 목적을 가지고 e-CRM의 도입 등을 통한 운영방안을 제시하였다. 또한 대국민 홍보활동을 강화하여 언론매체 등을 활용하여 정부차원의 대테러 정보자료의 배포범위의 확대를 통한 정보서비스 활동의 필요성과 기타 테러예방 홍보의 관리전략들을 제시하였다. This research is based on the purpose of awaking the importance to publicity of terrorism prevention in the environment of neo-terrorism and presenting the direction of effective publicity activities of terrorism prevention in the counter-terrorism system. Government publicity through public media plays a significant role in promoting people's participation and improving the awareness. So, to strengthen the terrorism prevention in environmental changes of terror occurrence, active method available for people must be found as publicity method of terrorism prevention suitable for high information society. For this method, this research argued first about relationship between police organization and public as counter-terrorism system and about effective publicity methods of terrorism prevention through active erection of these relationships. This research suggested the operation method through introduction of e-CRM and etc, with ultimate purpose about maximizing the publicity effect of terrorism prevention by using as the advantage of internet these days as possible. And needs of information service activities and other administration strategies of publicity of terrorism prevention are suggested through enlarging the distribution scope of governmental counter-terrorism information materials by strengthening the national publicity activities and using media.

기니 피그에서 콜레시스토키닌 투여가 고탄수화물 , 저지방 , 저단백질식에 의한 색소성 담석의 형성에 미치는 영향

박용현(Yong Hyun Park),서경석(Kyung Suk Suh),김선희(Sun Whe Kim) 대한소화기학회 1994 대한소화기학회지 Vol.26 No.1

N/A W e reported an animal model of pigment gallstone induced by carbohydrate-rich diet main- ly composed with rice. However, the machanisms have not been clearly understood. Under the hypothesis that high-carbohydrate diet (CHO) might induce gallstone formation via the mechanism of the relative bile stasis caused by low secretion of cholecystokin (CCK), the aim of this study was to examine whether exogenous CCK administration inhibits gall- stone formation induced by CHO in guinea pig. Male guinea pigs were divided into 3 groups(Group 1: control chow-fed group, Group 2: high carbohydrate fed group, Group 3: high cabohydrate fed and CCK injected group). High carbo- hydrate diet was 63.2% carbohydrate(45.8% in control chow), mainly composed of rice, and Group 3 received a daily injection of cholecystokinin(0.5nmol/kg). After 6 weeks of feeding, the guinea pigs were sacrificed. The stones were analyzed by infrared spectrophotornetry and gallbladder bile was analyzed by using commercial kits. In group 1, gallstone was found in one case out of 10 animals, in Group 2, 9 out of 14(p<0.05 vs Group 1) and in Group 3, 3 out of 12(p<0 05 vs Group 2). There were no differences in the concentrations of total calcium, total bilirubin, cholesterol, phospholipid and bile acid of gall- bladder bile among 3 groups. The stones were mainly composed of calcium bilirubinate, cho- lesterol, calcium phosphate, and calcium palmitate, which were similar to human calcium bilirubinate stone. The prevalence of stone formation was lowered with administration of CCK in CHO fed animals. A possible mechanism is that exogenous CCK may recover the low CCK release by CHO. It is suggested that bile stasis caused by poor CCK release which may be due to CHO be the one of the contributing factors in the formation of pigment stones in guinea pigs. (Korean J Gastroenterol 1 994; 26: 151 156)

원발성 간암의 복강내 출혈

박용현(Yong Hyun Park),민병철(Pyung Chul Min) 대한외과학회 1976 Annals of Surgical Treatment and Research Vol.18 No.6

혈액투석중인 만성 신부전 환자에서 혈청 Neopterin 농도에 관한 연구

박용현(Yong Hyun Park),문경협(Kyung Hyub Hyub),박광기(Kwang Ki Park),조규웅(Kyu Woong Cho),음선홍(Sun Hong Eum),김광선(Kwang Sun Kim),최기철(Ki Chul Choi),강영준(Young Joon Kang) 대한내과학회 1990 대한내과학회지 Vol.39 No.2

N/A Neopterin is a low-molecular-weight product released by human macrophages upon stimulation with interferon gamma. It permits the quantification of the level of cellulalr immune activation in vivo. We measured the level of serum neopterin and creatinine concentrations in 20 patients before and after hemodialysis in order to test whether hemodialysis induces specific activation of the T-lymphocyte macrophage axis. The results were as follows: 1) In normal adults, the serum neopterin level was 6.7±1.3 nmol/L with no sex difference. 2) In 20 hemodialysis patients, the serum neopterin level before hemodialysis was 246.2±97.6 nmol/L and increased significantly compared to normal adults (p<0.001). 3) In 20 hemodialysis patients, the serum neopterin level was 163.0±76.7 nmol/L after hemodialysis and decreased significantly (p<0.001), the neopterin/creatinine ratio was 25.4±14.7, 32.8±23.7 before and after hemodialysis, respectively, and there was no significant difference between both groups. 4) In groups of short-term hemodialysis (less than three months), the serum neopterin level was 248.4±100.6, 181.7±91.2nmol/L before and after hemodialysis, respectively. In groups of long-term hemodialysis (more than one year), the neopterin level was 244.0±99.9, 144.2±57.6 nmol/L before and after hemodialysis, respectively, and decreased significantly after hemodialysis in both groups (p<0.001), and there was no significant difference between both groups. 5) In 12 male hemodialysis patients, the serum neopterin level was 226.4±97.6, 145.5±60.5nmol/L before and in after hemodialysis, respectively, and in eight female hemodialysis patients, the serum neopterin level was 275.9±96.0, 189.1±94.4 nmol/L before and after hemodialysis, respectively, and decreased significantly in both groups (p<0,05, respectively). There was no significant difference between both groups.Neopterin is a low-molecular-weight product released by human macrophages upon stimulation with interferon gamma. It permits the quantification of the level of cellulalr immune activation in vivo. We measured the level of serum neopterin and creatinine concentrations in 20 patients before and after hemodialysis in order to test whether hemodialysis induces specific activation of the T-lymphocyte macrophage axis. The results were as follows: 1) In normal adults, the serum neopterin level was 6.7±1.3 nmol/L with no sex difference. 2) In 20 hemodialysis patients, the serum neopterin level before hemodialysis was 246.2±97.6 nmol/L and increased significantly compared to normal adults (p<0.001). 3) In 20 hemodialysis patients, the serum neopterin level was 163.0±76.7 nmol/L after hemodialysis and decreased significantly (p<0.001), the neopterin/creatinine ratio was 25.4±14.7, 32.8±23.7 before and after hemodialysis, respectively, and there was no significant difference between both groups. 4) In groups of short-term hemodialysis (less than three months), the serum neopterin level was 248.4±100.6, 181.7±91.2nmol/L before and after hemodialysis, respectively. In groups of long-term hemodialysis (more than one year), the neopterin level was 244.0±99.9, 144.2±57.6 nmol/L before and after hemodialysis, respectively, and decreased significantly after hemodialysis in both groups (p<0.001), and there was no significant difference between both groups. 5) In 12 male hemodialysis patients, the serum neopterin level was 226.4±97.6, 145.5±60.5nmol/L before and in after hemodialysis, respectively, and in eight female hemodialysis patients, the serum neopterin level was 275.9±96.0, 189.1±94.4 nmol/L before and after hemodialysis, respectively, and decreased significantly in both groups (p<0,05, respectively). There was no significant difference between both groups.