저속 후방 추돌 자원자 실험을 통한 두부와 경부의 동작분석

홍성우,박원필,박성지,유재호,공세진,김한성,Hong, Seong Woo,Park, Won-Pil,Park, Sung-Ji,You, Jae-Ho,Kong, Sejin,Kim, Hansung 한국자동차안전학회 2012 자동차안전학회지 Vol.4 No.2

The purpose of this research is to obtain and analyze dynamic responses from human volunteers for the development of the human-like mechanical or mathematical model for Korean males in automotive rear collisions. This paper focused on the introduction to a low-speed rear impact sled test involving Korean male subjects, and the accumulation of the motion of head and neck. A total of 50 dynamic rear impact sled tests were performed with 50 human volunteers, who are 30-50 year-old males. Each subject can be involved in only one case to prevent any injury in which he was exposed to the impulse that was equivalent to a low-speed rear-end collision of cars at 5-8 km/h for change of velocity, so called, ${\Delta}V$. All subjects were examined by an orthopedist to qualify for the test through the medical check-up of their necks and low backs prior to the test. The impact device is the pendulum type, tuned to simulate the crash pulse of a real vehicle. All motions and impulses were captured and measured by motion capture systems and pressure sensors on the seat. Dynamic responses of head and T1 were analyzed in two cases(5 km/h, 8 km/h) to compare with the results in the previous studies. After the experiments, human subjects were examined to check up any change in the post medical analysis. As a result, there was no change in MRI and no injury reported. Six subjects experienced a minor stiffness on their back for no more than 2 days and got back to normal without any medical treatment.

Modified Widman Flap과 Modified Flap 후의 치료효과에 관한 임상적 비교연구

홍성우,박영채,이광수,유형근,신형식,Hong, Sung-Woo,Park, Young-Chae,Lee, Kwang-Soo,You, Hyung-Keun,Shin, Hyung-Shik 대한치주과학회 2000 Journal of Periodontal & Implant Science Vol.30 No.1

Periodontal surgery can be directed to remove the irritants from the tooth surface and reduce the periodontal pocket. The purpose of this study is to compare the clinical effects after between modified Widman flap and modified flap in periodontal patients. Ninety six molar area teeth of 9 patients were used. One of sextants performed a modified Widman flap, while the other side performed a modified flap. After initial periodontal therapy, the following measurements prior to surgery(baseline) were taken : pocket depth, gingival recession, clinical attachment level, tooth mobility, bleeding on probing. Also these measurements were taken at 4 weeks, 8weeks, and 12 weeks after surgery. Significant decrease of pocket depth was shown in both techniques, and the degree of decrease was significant in modified flap than modified Widman flap at 12 weeks. Significant increase of gingival recession was shown in both techniques, and the degree of increase was significant in modified Widman flap than modified flap at 4 weeks, 8 weeks, and 12 weeks. Significant attachment gain was shown in both techniques, and the degree of increase was significant in modified flap than modified Widman flap at 4 weeks, 8 weeks, and 12 weeks. Significant increase of tooth mobility was shown in both techniques at 4 weeks, but the decrease of tooth mobility was shown at 12 weeks. Greater decrease of bleeding on probing was shown in both techniques at 4 weeks. Modified flap was better than modified Widman flap in the decrease of gingival recession and the attachment gain. These results indicate that modified flap operation is better than modified Widman flap operation in the effect of periodontal treatment.

지역사회 활성화를 위한 정부 부처간 정책경쟁의 탐색적 고찰

홍성우 ( Sung Woo Hong ) 단국대학교 분쟁해결연구소 2011 분쟁해결연구 Vol.9 No.3

유연한 금융 수수료를 위한 업무 규칙 기반 컴포넌트 설계

홍성우 ( Sung-woo Hong ),김영갑 ( Young-gab Kim ) 한국정보처리학회 2005 한국정보처리학회 학술대회논문집 Vol.12 No.1

최근 금융권의 수익 기반이 되고 있는 수수료는 다양한 형태의 규칙을 내포하고 있으며, 복잡성이 증가하고 있어 유연하고 동적인 수수료 구조가 요구된다. 이러한 요구 사항을 충족시키기 위해서 업무 규칙(business rule)이 활용될 수 있다. 본 논문에서는 은행권의 수수료를 분석하여, 수수료 부과 기준을 업무 규칙으로 정의하고, 이를 파라미터 드리븐(parameter driven) 방식의 룰 데이터베이스(rule database)로 설계하였다. 이를 통하여 복합 수수료를 즉시 적용할 수 있는 유연한 설계로 어플리케이션 구조를 단순화 할 수 있는 업무 규칙 기반 수수료 처리 컴포넌트를 설계하였다.

Carborane을 이용한 PS-b-P2VP 블록공중합체 나노패턴의 식각 저항성 향상

홍성우(Sung Woo Hong),최홍균(Hong Kyoon Choi) 한국고분자학회 2021 폴리머 Vol.45 No.2

블록공중합체를 이용한 저비용, 고효율 나노패턴 제조 기술은 다양한 분야에 활용성을 가지고 활발히 연구되고 있다. Polystyrenre-b-poly(2-vinyl pyridine)(PS-b-P2VP) 블록공중합체는 패턴 정렬의 용이성, 대면적 배향 가능, 금속 치환 가능 등의 장점으로 범용적으로 사용되는 블록공중합체이지만 유기물로만 구성되어 있기에 패턴 전사에 필요한 식각 선택도(etching selectivity)가 부족한 한계를 가지고 있다. 본 연구에서는 간단한 공정으로 carborane 화합물을 PS-b-P2VP의 P2VP 블록에 선택적으로 도입시킬 수 있는 방법을 제시하여 P2VP 블록의 식각 저항성을 크게 향상시킬 수 있음을 보였다. 이 연구 결과는 유기물로만 이루어진 대부분의 블록공중합체의 낮은 식각 선택도 문제를 극복하는데 중요한 단서를 제공해 줄 수 있을 것이며 향후 블록공중합체의 다양한 나노 패턴 주형으로서의 활용성을 더욱 넓힐 수 있을 것으로 기대한다. Block copolymers self-assembly has been intensively studied because they offer a simple and low-cost nanopatterning method which can be applicable in various fields. Polystyrene-b-poly(2-vinyl pyridine) (PS-b-P2VP) is one of most commonly used block copolymer due to its advantages such as easy control of pattern morphology, large-area orientation, and simple process for metal substitution. However, since it is composed of only organic polymers, it has insufficient etching selectivity between two blocks required for pattern transfer. In this study, we show that with a simple process, carborane compound can be selectively introduced into the P2VP domain of PS-b-P2VP which can significantly improve the etching resistance of the P2VP block. This result can provide important clue to solve the common problem of low etching selectivity in block copolymers composed of organic materials, and therefore it is expected that the usefulness of block copolymers as various nanolithographic templates could be further expanded.

시민참여형 도시기본계획 수립 사례의 거버넌스 특성 분석 - EPG 모델을 중심으로 -

홍성우(Sung-Woo Hong) 한국지방행정학회 2016 한국지방행정학보 (KLAR) Vol.13 No.3

The government and a few city planning experts have led the establishment and implementation process of urban planning in Korea even though the various types and ways of public participation in the city planning process have been institutionalized. However, some local autonomies have introduced and implemented more active and practical methods of citizen participatory urban planning. In this sense, the Suwon municipality operated ‘the Suwon citizen group for urban planning’ in the procedure of establishment of ‘the 2030 Suwon City Comprehensive Plan’ in 2012. In this light, this paper analyzes the governance features of ‘the Suwon citizen group for urban planning’ in setting up “the 2030 Suwon City Comprehensive Plan” in terms of EPG(Empowered Participatory Governance) model which is introduced by A. Fung & E. O. Wright(2003). The features of EPG include three central principles(practical orientation, bottom-up participation, deliberative solution generation) and three institutional design properties(devolution, centralized supervision & coordination, state-centered, not voluntaristic). This exploratory analysis finds that the fundamental principles and the roles of ‘the Suwon citizen group for urban planning’ which is composed of ordinary people largely go along with the principles and properties of Empowered Participatory Governance model.

주상복합시설 사업타당성 영향요인의 중요도에 관한 연구

홍성우(Hong Sung-Woo),홍주현(Hong Ju-Hyun),고성석(Go Seong-Seok) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(구조계)

Recently, high rise combined residential commercial facilities are supplied in the metropolitan area and even in small towns in order to provide houses in large quantity and to utilize land effectively. This study is a part of the directional study which can make progress in feasibility study of combined residential commercial facility more objective and rational. The object of the study is to find development in the existing feasibility evaluation stage and to deduce influential elements for the upcoming feasibility valuation, with investigating and analyzing important factors through a preceding study and case studies.

사례분석을 통한 공동주택 불공정 하도급거래 개선에 관한 연구

홍성우(Hong Sung-Woo),고성석(Go Seong-Seok) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1

According to the statistical annual reports in the Fair Trade Commission '06, it needs to improve that accounts for nearly 45.2% to the cases of violation of the subcontract law 18,306 of the total cases of unfair trade 40,525. It recognized that a relationship between a contract and a subcontract was not a cooperative relationship. Construction work's competition is the more cost-down and business profit than another firms through quality guaranteed and technique development during the preferable term of work, but recently to evaluate a value of firm are also reasonable factors that are a business clearness, social responsibility, moral management therefore, if you need to improve construction work's competition, you should need to improve the market economy system through establishment of the fair and free competitive system. Accordingly, this study aims to present the problem of law in conjunction with subcontract dealing, to survey a questionnaire, to present improvement plans for relative system of subcontracting, to analyze the relationship between normal construction work and special construction work.

임질의 임상적 고찰 - 제 6 보 : Kanamycin과 Fortified Penicillin G의 남성 단순임질 치료효과의 비교 -

홍성우(Sung Woo Hong),김중환(Joong Hwan Kim) 대한피부과학회 1983 大韓皮膚科學會誌 Vol.21 No.3

Although penicillin still remains the drug of choice in the treatment of gonorrhoea in many countries, treatment failures are becoming more and more coramon. Recently, the prohlem cauaed, by antibiotic resistant strains of N. gnorrhoeae has been aggravated by appearance of penicillinase producing N. gonorrheeae. Good results were reported with the use of spectinomycin, cefuroxime and efotaxime. These drugs are, as yet, quite expensive. A lower cost regimen has to be sought. In this study, the effect of fortified penicillin G was compared with kanarnycin in the treatment of uncomplicated male gonorrhoeae. The subjects were 446 rnale patients with uncomplieated gonocoacal urethritis at VD clinic of ChoongKu Public Health Center in Seoul between June and November, 1981. The patients are assigned randomly to one of the regimens. Among 181 patients treated with kanamycin, 2. 0 gm, IM, 148 recovered with 27 (19%) postgonococcal urethritis (PGU) and 39(21,6%) failed. Among 168 patients treated with fortified penicillin G, 6 mega-units IM, plus probenecid, l. 0 gm, PO., 100 recovered with 31(81%) PGU and 68(40. 5/o) failed. -countinue-

성인형 치주염 환자에서의 Minor Tooth Movement

홍성우(Sung-Woo Hong),유경태(Kyung-Tae You),이승철(Seung-Cheol Lee),유형근(Hyung-Keun You),신형석(Hyung-Sick Shin) 대한치과의사협회 1999 대한치과의사협회지 Vol.37 No.5