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조성실(Sung-Sil Cho),유재성(Jae-Seong Yu),김진만(Jin-Man Kim),홍익표(Ic-Pyo Hong) 한국정보기술학회 2017 한국정보기술학회논문지 Vol.15 No.2
In this paper, we studied the electromagnetic transmission characteristics of eco-friendly foamed concrete which is lightweight, heat and sound insulation, which can reduce the economical cost and environmental pollution. The foamed concretes were fabricated with ladle furnace slag, gypsum and blast furnace slag which are industrial by-products. Electrical properties like dielectric constant and loss tangent were measured to simulate the electromagnetic transmission characteristics of the fabricated foamed concrete walls. The free-space measurement method was used to measure and analyze the electromagnetic transmission characteristics of 1~8GHz band depending on the content of foams and blast furnace slag. From the measurement results, it was confirmed that the electromagnetic wave was transmitted at -10dB(90%) at 4GHz or less. The results of this study can be applied to the research for improving the spectral efficiency through the efficient wireless network design and reducing the human body effect by electromagnetic waves in the indoor space where foamed concrete is applied.
조성락(Sung Rag Cho),나산균(San Gyun Rha),문성수(Seong Soo Moon),한규호(Kyu Ho Han),박인철(In Cheol Park),김순관(Soon Kwan Kim),양만석(Man Seok Yang),허갑도(Gap Do Hur),최태룡(Tae Lyong Choi) 대한소화기학회 1991 대한소화기학회지 Vol.23 No.1
Unilobular atrophy or hypoplasia involving the hepatic lobes is not uncommon on the left side. It is distinctly uncommon on the right, where it probably represents an developmental anomaly if no other etiological factor is demonstrable. So we report a case of hypoplasia of right hepatic lobe.
조성만(Seong-Man Cho),정동준(Dong-June Jung),허수철(Soo-Chul Heo),엄유진(Yoo-Jin Um),김상연(Sang-Youn Kim) 한국HCI학회 2009 한국HCI학회 학술대회 Vol.2009 No.2
본 연구에서는 몰입형 인간 컴퓨터 상호작용을 위한 햅틱 마우스 시스템을 제작한다. 제작한 햅틱 마우스는 진동감각 뿐 아니라 온열감도 제공하기 때문에 사용자는 더욱 몰입감 있게 가상의 공간을 경험할 수 있다. 진동감각과 온열감을 제공하기 위하여 편심모터들과 솔레노이드, 그리고 펠티어 엑츄에이터를 이용하였으며 제작한 시스템의 평가를 위하여 레이싱 게임 프로토타입을 구현하여 테스트를 수행한다. 실험결과로부터 본 햅틱 마우스는 가상공간에서 사용자에게 사실감을 전달함을 알 수 있다. In this paper, we develop a haptic mouse system for immersive human computer interaction. The proposed haptic mouse system can provide vibrotactile feedback as well as thermal feedback for realistic virtual experience. For vibrotactile and thermal feedback, we use eccentric motors, a solenoid, and a peltier actuator. In order to evaluate the proposed haptic mouse, we implement a racing game prototype system. The experimental result shows that our haptic mouse is expected to be useful in experiencing virtual world.
조성만(Cho Seong-Man),유상호(Yu Sang-Ho),박병선(Park Byung-Sun),민일규(Min Il-Kyu),민병형(Min Byung-Hyung) 동아대학교 해양자원연구소 2002 동아대학교 해양자원연구소 연구논문집 Vol.14 No.-
As the roughness coefficient by existing Manning table is used by technician"s experience and judgement, it isn"t always correct.<BR> This study as a try to make quantitative roughness coefficient is to suggest a new application mode computerizing roughness coefficient by surveying the velocity and hydraulic condition of small rivers.<BR> The bound of roughness coefficient was 0.027~0.180 and its values distribute uniformly. This means that the roughness coefficient adapt value by Manning table cannot fill up the transformed value when the small rivers are low.<BR> The roughness coefficient computation mode in this study with hydraulic radius(R), channel slope(I), average grain diameter(D) as subject factors presents as follows.<BR> n´ = 5.97 R<SUP>0.671</SUP> I<SUP>0.452</SUP> D<SUP>0.059</SUP>
Femoral Head Deformity in Legg-Calvé-Perthes Disease
Sung-Man Rowe(노성만),Myung-Sun Kim(김명선),Taek-Rim Yoon(윤택림),Sung-Taek Jung(정성택),Seong-Beom Cho(조성범) 대한정형외과학회 2004 대한정형외과학회지 Vol.39 No.5
목적: Legg-Calve-Perthes병(LCPD)에 있어서 대퇴골두의 대표적 병변인 편평 고(coxa plana), 대 고(coxa magna), 내반고(coxa vara) 그리고 아탈구(subluxation)의 발현 양상을 관찰하고자 함. 대상 및 방법: 편측 고관절의 LCPD 환자 중 발병 초기로부터 골성숙기까지 장기 관찰이 가능하였던 85명의 환자를 대상으로 질환 활동기, 질환 치유기 그리고 골성장 완료기로 나누어 골두변형의 변화 과정을 관찰하였다. 결과: 골두 편평과, 대 고, 내반 고 그리고 아탈구는 질환 활동기에 이미 출현하였으며, 그 발현율은 각각 79%, 28%, 35% 그리고 27%이었다. 아탈구를 제외한 이들 변형은 치유기와 성장기에 이르면서 점진적인 증가 추이를 보였다. 그러나 아탈구는 질환 활동기에 출현한 변형의 정도가 증가 또는 감소없이 골성장기까지 지속하였다. 결론: 골두변형의 발현 과정을 규명함으로써 골두변형의 예방을 위한 치료법의 선택과 예후 판단에 도움이 될 것으로 판단한다. Purpose: To determine the developmental patterns of 4 major deformities of femoral head commonly observed in Legg-Calve-Perthes disease (LCPD): coxa plana, coxa magna, coxa vara, subluxation. Materials and Methods: We reviewed the clinical records and radiographs of 85 unilateral LCPD children who were followed up from the early stage of disease to full skeletal maturity. Four major deformities were measured and observed during 3 periods: the active disease stages of avascular necrosis and fragmentation, the healing stage, and skeletal maturity. Results: All four deformities were first observed at early stages of the disease, avascular or fragmentation stage. Appearance rates were 79% in coxa plana, 28% in coxa magna, 35% in coxa vara, and 27% in subluxation. The gradual progression of deformities with time which was demonstrated at the healing stage and at skeletal maturity were observed in all except subluxation. And this gradual increase was supposed to be dependent on the normal bony growth with aging. Conclusion: We determined the developmental pattern of major deformities of the femoral head. And this determination will help to understand the natural course of deformity which is clinically important in terms of late osteoarthritis.
지적불부합지의 정리방안에 관한 연구 - 경기도 유형별 사례를 중심으로
문만수(Moon Man Su),최윤수(Choi Yun Soo),조성길(Cho Seong Kil) 한국지적학회 2006 한국지적학회지 Vol.22 No.1
지적불부합지는 넓은 의미에서 지적공부와 실제현황이나 현지의 토지경계가 일치하지 않는 모든 경우를 뜻한다. 이를 해소하기 위해서 법률적 측면에서는 지적불부합지를 정리할 수 있는 규정이 정비되어야 한다.<BR> 제도적 측면에서는 세부측량을 경위의 측량으로 시행하는데 필요한 세부운영 체제에 대한 법률적 보완이 필요하고 기술적 측면에서는 PBLIS 운영 체계상 연속지적도 부분 및 관련 프로그램 개발과 보완이 필요하다.<BR> 지적불부합지 문제를 해소할 수 있는 방법은 지적재조사가 가장 원칙적인 방법이지만 본 연구에서는 경기도의 유형별 사례를 중심으로 각 지구별로 정리사례를 들어 정리 방안을 도출해 보았다.<BR> 정리방안을 살펴보면 안정적 추진을 위한 관련법령이 미흡하므로 지적불부합지의 발견과 동시 “등록사항정정대상토지”로 관리함으로서 추진기간 중 발생할 문제점을 사전에 예방하고 법적인 규제 및 소유권 행사의 제약으로 불부합지정리의 필요성을 부각시킴으로써 참여를 유도한다. 또한 계획단계부터 관련추진위원회를 구성하여 보다 적극적인 입장에서 토지소유자와 이해관계인들을 이해시키고 추진위원회를 중심으로 공정한 금전청산이 이루어지도록 하여야 한다. A land with cadastral non-coincidence means, in a broad sense, all the cases where public document for land, real conditions or on-site land boundaries do not match with each other. In order to resolve such problem, relevant regulations that arrange cadastral non-coincidence in judicial aspects should be provided.<BR> In systematic aspects, it is necessary to provide legal supplement for the detailed operation system necessary for the detailed surveying measurement in terms of longitude and latitude. In technical aspects, it is necessary to develop and supplement the SCM(Serial Cadastral Map) and its subsequent program in the〈PBLIS〉operation system.<BR> Cadastral resurvey is one of the most fundamental methods to solve the problems with cadastral non-coincidence. In this regard, this study suggests a cadastral discrepancy adjustment by means of giving some examples of arrangements of different types of the problems occurred in Gyeonggi-do.<BR> Investigating the cadastral discrepancy adjustment, one can find that the relevant ordinances for the stable promotion is not well established. Thus by managing cadastral non-coincidence as "land set for adjusting the registered contents", it is possible to prevent the problems that might occur during the promotion period in advance and to demonstrate the necessity of the discrepancy adjustment for cadastral non-coincidence with the judicial regulation and the restriction on the possession rights. In this way, it will draw people"s participation. Besides, one should make those who concerned as well as the owners of land understand by building up the relevant promotion committee from the planning stage and create a climate of performing fair liquidation by the promotion committee.