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복재 신경의 혈관망을 이용한 원위도상 도서형 신경피부 피판술
김상수,김동철,김용범,Kim, Sang-Soo,Kim, Dong-Churl,Kim, Yong-Bum 대한미세수술학회 2001 Archives of reconstructive microsurgery Vol.10 No.1
Introduction : The goal in the management of soft tissue injuries of the lower extremity is to obtain a closed stable wound as soon as possible. Recently, An anatomic study that has shown the role of the vascular axis that follows the superficial sensory nerves in supplying the skin developed the concept of a neuroskin island flap. It has been suggested that skin island flaps supplied by the vascular network of the saphenous nerve is one of the most reliable treatment to skin defect below the knee joint. Purpose : The aim of this article is to present a clinical experience of neuroskin island flaps based on the saphenous nerve and to estimate the clinical utilities of distally based saphenous neuroskin flap. Materials and Methods : From September 1995 to May 2000, a total 12 distally based neuroskin island flaps supplied by the vascular axis of the saphenous nerve were performed to cover defects in pretibial area below the knee. Result : flap necrosis due to reactivation of existing infection developed in a case that skin defect had been on infected nonunion site of tibia. But other 11 cases survived completely without any specific complications. Conclusion : The distally based neuroskin pedicled island flap using the vascular network of the saphenous nerve are versatile and reliable and especially indicated for limited defects in pretibial area below the knee joint which are not good indications for other better-known flaps.
STACIR/AW 410SQmm 가공송전선의 경년열화와 이도거동(III)
김상수,김병걸,신구용,이동일,민병욱,Kim Shang-Shu,Kim Byung-Geol,Sin Goo-Yong,Lee Dong-Il,Min Byung-Uk 한국전기전자재료학회 2006 전기전자재료학회논문지 Vol.19 No.3
As a way to expand electric capacity in conductor with electric power demand, STACIR/AW (Super Thermal-resistant Aluminum-alloy Conductors Aluminum-clad Invar-Reinforced) conductor which has high electric current and heat resistance characteristics have been developed. STACIR/AW power line is mechanical composite wire composed of steel cores for dip control and aluminum conductors for sending electric current. Recently, to ensure stable operation and prediction of wire life span of STACIR/AW conductor, a heat property of STACIR/AW conductor have been investigated. In the present work, a change of essential property with long term-heat exposure of STACIR/AW conductor and its structure material, INVAR wire and Al conductor, have been investigated. INVAR/AW is approximately $3.2\;{\mu}m/m^{\circ}C$. thermal expansion coefficient of INVAR/AW wire increases with time of heat exposure. the thermal expansion coefficient of INVAR/AW is markedly influenced by heat and mechanical treatment. creep rate(0.242) of STACIR/AW $410\;mm^2$ conductor at room temperature is much higher than that(0.022) at $210\;^{\circ}C$ STACIR/AW $410\;mm^2$ conductor has minimum creep rate at operating temperature. To lower creep rate with increase temperature is more unique characteristics in STACIR/AW. It is expected that STACIR/AW turned its tension to INVAR/AW at the transition temperature. at room temperature, the tension apportionment of INVAR/AW in STACIR/AW is about $50\;\%$. but whole tension of STACIR/AW is placed on the INVAR/AW alone of core metal above transition temperature.
김상수,김병걸,현석규,이동일,민병욱,Kim Shang-Shu,Kim Byung-Geol,Hyun Suk-Kyu,Lee Dong-Il,Min Byung-Uk 한국전기전자재료학회 2006 전기전자재료학회논문지 Vol.19 No.5
A research was undertaken on the thermal properties and behavior of the conductors in a controlled chamber, which was designed to implement the outdoor air temperature, heat and wind conditions. With ACSR $410mm^2$ overhead conductors, we measured the maximum temperature of the conductors and the temperature gradient from the core to the surface regions as a function of current, tension, wind velocity and outdoor air temperature. This test also provided a comparative analysis between the measured temperature values of conductors in the controlled chamber and the theoretical calculations of ANSI/IEEE at normal condition.
폐결핵(肺結核) 환자(患者)에서 수소(愁訴)가 치료과정(治療過程)에 미치는 영향(影響)
김상수,Kim, Sang-Soo 대한예방의학회 1982 예방의학회지 Vol.15 No.1
In order to investigate the relation of subjective complaints to objective course of treatment in pulmonary tuberculosis, one hundred and seventy four cases registered at the University Health Center in Chonnam University were divided into two groups, complaint group and non-complaint group. By analysing the record at the University Health Center during these seven years from 1973 to 1979, following results were obtained: 1. In complaint group who had subjective symtoms, thirty eight cases(77.6%) among forty nine cases were detected. at clinic visit. In non-complaint group who had not any symtoms, one hundred and twenty one cases (96.8%) among one hundred and twenty five cases were detected at compulsive physical examination. 2. Comparisons of complaint group with non-complaint group were not statistically significant in many aspects, but significantly higher cases were discharged at the University Health Center to receive other medical service in complaint group than in non-complaint group. (6.1% vs 0.8%, respectively) On the contrary, non-complaint group refused medication more than two times compared with complaint group in the course of treatment (29.9% vs 12.2%, respectively). 3. In the average time lag from initial diagnosis to initial treatment, comparisons between complaint vs non-complaint group were significant (7.8 vs 28.3 days, respectively). 4. Subjective symptoms were thought to create motivation to receive therapy, and influence of motivation to therapy was strong at initial stage but it become weaker as time passed.
김상수,임상원,박용식,인호,Kim, SangSoo,Lim, SangWon,Park, Stanley,In, Hoh 한국시스템엔지니어링학회 2006 시스템엔지니어링학술지 Vol.2 No.1
According to the change of customer needs, integration with other systems, and the advent of new technology, it is inevitable for the existing system requirements to be requested to redesign. However, there are actually no methodologies and processes to be able to reorganize the existing requirements or integrate a number of requirements different from each other. The traditional requirements processes do not work when solving such problems. Thus, since the existing approaches to develop requirements are not helpful, many traditional requirement engineering processes can not help falling in Red Ocean. In this paper, in order to solve such the problems, we propose a novel requirements engineering process applying Blue ocean strategy which is used to open a non-competition market not discovered yet. Blue Ocean approach is a novel effective method to elicit and build up new requirements from customers. In order to accomplish the strategy, this paper presents a framework and processes to discover new perspectives and analyze the corresponding requirements. In addition, some pieces of case study are presented to introduce how our approach is applied to practical system developments and the evaluation analysis for how valid it is.
체간신전근의 근력강화운동과 신장운동이 20대 청소년의 근력 및 유연성에 미치는 영향
김상수,이우형,송명수,Kim, Sang-Soo,Lee, Woo-Hyung,Song, Myung-Soo 대한고유수용성신경근촉진법학회 2010 PNF and Movement Vol.8 No.1
Purpose : This study aimed to examine the Influence of muscle strengthening exercise and stretching exercise of trunk extensor muscles on muscular strength and flexibility in adolescent of the twenties. Methods : Muscle strengthening exercise group(n=10), stretching exercise group(n=10) and strengthening and stretching exercise group(n=10) were measured muscular strength by digital back and leg dynamometer and flexibility by sit and reach test and trunk extension test at pre-intervention and post-intervention in 4weeks. Results : The flexibility 1, flexibility 2 and muscular strength of muscle strengthening exercise group were significantly increased within the intervention period(p<.05). The flexibility 2 and muscular strength of stretching exercise group were significantly increased within the intervention period(p<.05). but flexibility 1 was not significantly different at in 4 weeks(p>.05). The flexibility 1, flexibility 2 and muscular strength of muscle strengthening and stretching exercise group were significantly increased within the intervention period(p<.05). Conclusion : We were found that muscle strengthening exercise and stretching exercise of trunk extensor muscles could improve muscular strength and flexibility for adolescent of the twenties.