요부수핵탈출증에서 Thermography의 진단적 가치

신현택,신승우,송재철,정석희,이종수,김성수,신현대 경희대학교 동서의학연구소 2001 東西醫學硏究所 論文集 Vol.2000 No.-

Objectives : Lumbar radiculopathy is a common disease in oriental rehabilitation medicine. It can be diagnosed by physical examination, plain X-ray, Myelography, CT, MRI, EMG etc. But those methods are not useful in observing the clinical procedure. Objectvie evaluating the clinical procedure is very important in treatment of lumbar radiculopathy. Mehthods : We studied the clinical efficacy of thermography in lumbar radiculopathy during conservative managements. We studied 36 patients with lumbar radiculopathy convinced by MRI. The had low back pain and radiating pain on one side. Thermography had taken before an after 4 weeks treatments, and compared with clinical procedure Results and conclusions : Thermography is not pertinent as a primary diagnostic method in lumbar radiculopathy, but useful in observing the clinical procedure. And it can be recommended as a objective evaluation for lumbar radiculopathy.

야뇨증 환아들의 심리사회적 특성에 대한 다기관 연구 : 행동 및 정서 문제를 중심으로

조수철,김재원,신민섭,황준원,한상원,박관현,이상돈,김경도,김건석,서홍진,이유식,정재용,김영균,문두건,남궁미경,한창희,조원열,김영식,배기수,이종국,정우영,신의진 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

Objectives : The aim of this study was to examine the behavioral and emotional problems associated with nocturnal enuresis in Korean children. Methods : Three hundred eighteen children with nocturnal enuresis, together with their parents, completed the Child Behavior Checklist (CBCL), Disruptive Behavior Disorder Scale according to DSM-IV (DBDS), Children's Depression Inventory (CDI), State-Trait Anxiety Inventory for Children (STAIC), and Piers-Harris Children's Self-Concept Scale (PHCSC). Ninety-three normal students were selected as the control group. Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in the nocturnal enuresis group according to the CBCL results. The nocturnal enuresis group also scored significantly higher in the ADHD and ODD profiles of the DBDS. The nocturnal enuresis group was more depressed and anxious than the control group according to the results of the CDI and STAI. The mean score of the PHCSC was significantly lower in the nocturnal enuresis group when compared to the normal control group. Conclusion : The results of this study suggest that children with nocturnal enuresis in Korea have clinically relevant behavioral and emotional problems. The findings support the link between nocturnal enuresis and psychopathology in Korean children.

等高의 四角形 斷面 컵 形成

愼宰賢,任亨洙,徐大敎 成均館大學校 科學技術硏究所 1991 論文集 Vol.42 No.1

One of the recent procedures, the slip line field theory is adopted to find out the exact blank profile for deep drawing square and rectangular cups with a uniform height. The uniformity of drawn cup heights with ideal blanks by this theory is compared with that from other blanks. Drawing forces and thickness distributions are also described experimentally. From this approach, the use of ideal blanks could be suggested to obtain the deeper and the better square and rectangular cups with uniform heights which reduce the trimming allowance to a minimum.

복 반사음 합성기에 관한 연구

신재범,이상영,김재수,박성희,임준석 韓國海洋大學校 附設 海洋科學技術硏究所 1992 硏究論文集 Vol.1 No.1

In the active sonar development, the reverberation is one of the major factors to be overcome like the clutter in the rader development. Unfortunately real reverberation data in various cases cannot be achieved so easily as real clutter data can be and there is a trend to build a simulator before a complex sonar system is developed. In the sonar simulator, the synthesized reverberation signal is necessary. In this paper we propose an algorithm to simulate the reverberation for the moving active sonar to use it in a simulator, and show some simulated results.

LPE법으로 작성한 Bi₂-xSr₂Ca₁+xCu₂O 막(film)의 초전도특성에 관한 연구

신재수 대전대학교 기초과학연구소 1998 自然科學 Vol.9 No.1

LPE법으로 Bi₂-x??Sr₂Ca₁+x??Cu₂O??(x??=0, 0.05, 0.1, 0.2) 막(film)을 작성하여 XPS 측정과 EPMA 측정을 통하여 각 layer에 있어서 원자의 분포상태와 초전도특성을 조사하였다. 작성한 막(film)은 c-축으로 강하게 배향되었으며, x??(융액조성비)의 증가에 따라 c-축의 길이는 단조로이 증가하였고, 임계온도 Tc??는 x??=0.1 부근에서 최고치를 나타내고 있었다. Bi와 Ca의 상호치환에 따라 구조적 변화는 SrO-layer에서 크게 나타나고, Ca-layer에서는 거의 변화가 없이 일정함을 알 수 있었다. Bi의 조성비의 변화는 SrO-layer에 영향을 주며, 이에 따라 초전도 특성도 변화함을 알 수 있었다. X-ray photoelectron spectroscopy(XPS) measurements were performed on the Bi₂Sr₂CaCu₂O?? system prepared by the LPE method using melts with compositions Bi : Sr : Ca : Cu = (2-χ₁) : 2 : (1+χ₁) : 2(χ₁=0, 0.05, 0.1, 0.2). The peak decompositions of Sr3d and Ca2p XPS spectra, together with the EPMA results, elucidated the occupanies of Bi, Sr and Ca atoms on the BiO-, SrO- and Ca-layers. The dependence of the superconducting critical temperature Tc?? and the lattice paramaeter c are explained by the changes of the excess oxygens in the BiO-layer.

LPE법으로 작성한 산화물초전도체 Bi₂Sr₂-Ca₁+Cu₂ 막(films) 의 초전도특성

신재수,황선아,이종용,이권재 대전대학교 기초과학연구소 1997 自然科學 Vol.8 No.2

LPE(Liquid press epitaxy)법을 이용하여, Sr과 Ca가 서로 상호 치환된 산화물초전도체 Bi₂Sr₂??Ca₁+x??Cu₂O??(x?=0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6) 막(film)을 작성하여 상호치환 상태와 초전도특성과의 관계를 알아보았다. 작성한 막(film)의 조성비은 융액조성비(x?)와 막(film)속의 조성비(x?)가 비례함을 알 수 있었고, c-축으로 강하게 배향된전형적인 Bi2212상의 단일상(singe-phase)을 보였다. 치환량 x?의 증가에 따라, 임계온도 T??, c-축의 길이, carrier농도 등은 단조로이 감소하고 있음을 알 수 있었다. We investigated the superconductivity of Bi₂Sr₂_Ca₁+x?Cu₂O?+?x?=0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6) films by liquid phase epitaxial method. X-ray diffraction measurements revealed that films were predominantly oriented with the c-axis perpendicular to the substrate surfaces. The zero-resistance temperature and the lattice parameter c linearly decreased with the increase of x?, corresponding to the decrease of the carrier concentration.

세기변조방사선치료의 선량분포 검증에 관한 연구

권수일,신동호,송재영,안진호 京機大學校 2006 論文集 Vol.50 No.-

Film dosimetry as a part of patient specific intensity modulated radiation therapy quality assurance (IMRT QA) has been accomplished to develop the new optimization method of film isocenter offset and to suggest the new quantitative criteria for film doimetry after optimization. Five patients with head and neck cancers were measured in IMRT dosimetry by film method. Optimization method with the local minimum was developed to adjust the film isocenter offset error, which is the biggest part of systemic errors. The mean ratios were 5.33% and 7.09% for 5mm and 1 mm resolution dose data optimization respectively.

기하광학영역에서의 능동소나 표적신호합성

신기철,박재은,김재수,최상문,김우식 한국해양대학교 해양과학기술연구소 2001 硏究論文集 Vol.10 No.1

능동소나 시스템에서 표적신호의 근거리 정보가 중요해짐에 따라, 표적 음향산란 신호의 고유한특성을 분석하기 위해 실험적인 방법과 시뮬레이션 기법이 사용된다. 본 논문에서는 표적신호 합성을 위해 축소표적 반향실험을 수행하였고, 자료의 분석 결과 축소표적의 음향산란은 거울면 반사의 영향이 큰 것으로 분석되어, 표적신호 합성에서 기하광학이론을 응용하였다. 복잡한 형태의 표적을 여러 표본형상으로 분리하고, 각 표본형상의 기여도를 신호의 위상과 강도를 줌으로써 계산하였으며. 표적신호 합성모델의 검증을 위해 실제 축소표적 실험 결과와 비교하였다. 혁심용어: 기하광학이론. 음향산란, 거울면반사. 축소표적, 능동소나 투고분야: 수중음향 분야 (5.2) Since the near field iformation of target signal is important in the development and verification of active sonar system experimental method and simulation technique are widely used in order to analyze the detail characteristics of target scattered echoes. Therefore, in this paper, the scale target experiment is performed to develope and improve the target signal simulation model. Since the experimental results show that the specular reflection is the major component among scattering mechanisms, the target signal simulation model based on the Geometric Optics Theory (GOT) is developed. Complex target is separated into simple shapes, known as canonical shape. The contribution from individual canonical shapes are summed with proper phase and amplitude to produse the target strength of the whole complex body. Simulated target signal is compared with the experimental results fed discussed.

염색체 미세해부에 의한 신세포암 세포주 Caki-1의 표지 염색체 분석

신재섭,박수연,전용혁,박선화 大韓泌尿器科學會 1998 Korean Journal of Urology Vol.39 No.3

몰리브덴이 첨가된 Stellite 6 합금의 마모와 부식특성

申種喆,金在洙,李德悅,梁在雄,尹珍國,盧大虎,李種權 대한금속재료학회 2002 대한금속·재료학회지 Vol.40 No.10

Hardfacing layers of Stellite 6 with different molybdenum content are deposited on AISI 1045-carbon steel using Plasma Transferred Arc welding(PTA) machine. The microstructures, wear and corrosion resistances of the hardfacing layer are investigated in order to clarify the effect of molybdenum in Stellite 6 alloys. The microstructural characterizations of the hardfacing layers are performed using X-ray diffraction, back scattered electron images, and scanning electron microscopy. With an increase of Mo contents, M_6C type carbide are formed instead of Cr-rich type carbides, and so this microstructural change enhanced the mechanical properties such as wear and corrosion resistance of a Mo-modified Stellite 6 alloy.