유리 측대퇴 피판을 이용한 압궤수부손상 재건술

김수신,백세민,김동일 大韓成形外科學會 1987 Archives of Plastic Surgery Vol.14 No.1

Utilizing the lateral thigh flap as originally described by Se-Min Baek. in 1983, we have treated seven cases of reconstruction involving crushing injuries of the hand. This flap is derived from the third perforator of the deep femoral artery and accompanying wein as per Baek`s method. When a large skin flap was needed such as the case of crushing hand injuries, a lateral thigh flap was more useful than any other flap. From our experiences for reconstruction of crushing hand injuries, the following advantages of this flap are noted: 1. It is possible to obtain a large size of all skin flap. 2. It is relatively thin with a small amount of the subcutaneous fat. 3. The vascular pedicle is long (10㎝ or more), facilitating microvascular anastomosis. 4. The lateral thigh flap can be a sensory flap. 5. It can be accommodated easily to any operating position.

결절종으로 초래된 후방골간신경 마비: 증례보고

신재원, 백신혜, 이형석, 신동익, 이성현, 이상수, 김지선 충북대학교 의과대학 충북대학교 의학연구소 2011 忠北醫大學術誌 Vol.21 No.2

-본문참고-

의과대학 학생의료 봉사를 위한 농촌지역 사회진단 : 충청북도 진천군 백곡면 Baek-Gok Myun, Jin-Cheon Gun, Chung-Cheong-Buk Do

강지욱,조지희,황희성,김금미,백혜승,신정현 이화여자대학교 의과대학 1986 梨花醫學誌 Vol.- No.18

A Study on environmental sanitation and health status was made so as to be able to plan for effective medical student health survice in a Korean rural community Baek-Gok Myun. For the study, total 263 households of three Ries out of nine Ries wer selected and an interview using family record and questionnair was carried out for each household by 10 medical students from July, 22, to 26, 1985. And following results were obtained: 1) Population of three Ries was 1,234; male, 645 and female, 589. Sex ratio: 109.5 2) Family size : The average household consisted of 4.5 persons. 3) Dependency rate : 68.3% Environmental sanitation: 1) The source of drinking water. water distribution system 60.1% well pump 36.5% spring water 3.4% 2) The kind of using privy proved-privy 83.3% pit-privy 15.6% openair privy 1.1% 3) Distance between well and using privy more than 10m 46.7% 5-9m 36.2% less than 5m 17.1% Status of chronic illness: 1) Morbidity rate: 120.7 per 1,000 population 2) Usual causes of illness Arthritis 16.0% Neuralgia 9.4% Notalgia 8.7% Maternal & Child Health: 1) Prenatal care rate: 27.0% 2) Average number of pregnancy : 3.7±1.9times 3) Abortion rate : 26.0% 4) Delivery rate in medical facilities : 28.0% 5) Vaccination rate DPT 87.5% Poliomyelitis 81.9% BCG 80.6% Measles 70.8% 6) Planned weaning rate : 13.0% 7) Child death experience rate : 6.0% Family planning 1) Family planning practice rate : 73.0% 2) Used methods Sterilization 53.0% (Male 4.0%, Female 49.0%) I.U.D 14.0% Oral pill 5.0% Others 10.0%

1급 와동에서 상아질과 복합레진의 결합강도에 대한 중합방법의 효과

백신영,조영곤,송병춘 大韓齒科保存學會 2008 Restorative Dentistry & Endodontics Vol.33 No.5

본 연구는 1급 복합레진 수복물에서 할로겐 광조사기를 이용한 4가지 중합방법이 상아질의 결합강도에 미치는 효과를 알아보기 위하여 시행하였다. 발거된 상·하악 대구치 20개의 교합면측 법랑질을 Diamond Wheel Saw를 이용하여 제거한 후 1급 와동을 형성하였다. 중합방법에 따라 파동지연 중합방법 (PD) 군,연성 중합방법 (SS) 군,파동 중합방법 (PC) 군,지속 중합방법 (CC) 군의 4개 군으로 분류하고, Z250 복합레진을 각 군의 와동에 충전한 후 광조사하였다. 각 군의 시편을 주수하에 접착계면의 단면적이 1㎟가 되도록 절단하여 막대모양의 시편을 제작하였고,각 군당 20 개의 시편을 사용하여 미세인장 결합강도를 측정하여 다음과 같은 결과를 얻었다. 1. PD 군은 PC 군과 CC 군보다 통계학적으로 더 높은 미세인장 결합강도를 나타내었다. 2. SS 군의 미세인장 결합강도는 PC 군과 CC 군보다 높게 나타났으나,통계학적으로 유의한 차이를 나타내지 않았다. 결론적으로,1급 복합레진 수복물을 중합할 때 파동지연 중합방법과 연성 중합방법을 사용하여 중합속도를 조절함으로써 상아질과 복합레진의 결합강도를 개선할 수 있을 것으로 사료된다. The purpose of this study was to compare the micro tensile bond strength in Class I cavities associated with different light curing modes of same light energy density. Occlusal enamel was removed to expose a flat dentin surface and twenty box-shaped Class I cavities were prepared in dentin. Single Bond (3M Dental product) was applied and Z 250 was inserted using bulk technique. The composite was light-cured using one of four techniques; pulse delay (PD group), soft-start (SS group),pulse cure (PC group) and standard continuous cure (CC group). The light-curing unit capable of adjusting time and intensity (VIP,Bisco Dental product) was selected and the light energy density for all curing modes was fixed at 16 J/㎠. After storage for 24 hours,specimens were sectioned into beams with a rectangular cross-sectional area of approximately 1 ㎟. Microtensile bond strength (μTBS) test was performed using a universal testing machine (EZ Test,Shimadzu Co.). The results were analyzed using one way ANOVA and Tukey's test at significance level 0.05. The μTBS of PD group and SS group was higher than that of PC group and CC group. Within the limitations of this in vitro study,modification of curing modes such as pulse delay and soft start polymerization can improve resin/dentin bond strength in Class I cavities by controlling -polymerization velocity of composite resin.

마이크로 핀을 이용한 니티놀 형상기억 합금의 마이크로 전해가공 특성 분석

신민정,백승엽,김백겸,이은상 한국공작기계학회 2007 한국공작기계학회 추계학술대회논문집 Vol.2007 No.-

Electrochemical micro machining, the anodic dissolution process without contact with tools, can achieve a wanted shape of the surface using electrochemical reaction between anode and cathode. Nitinol is a metal alloy composed of Ni and Ti around 50% respectively which has shape memory effect. Nitinol can be put various applications which require micro scale structure. The aim of this study is to investigate the characteristic of electrochemical micro machining for nitinol workpieces. In order to analyze the characteristics of electrochemical micro machining for nitinol, tungsten carbide micro pin was used for electrode and the machined area was observed by optical microscope.

커패시터 放電 임펄스 着磁機 및 着磁 요크시스템의 定數算定에 관한 硏究

白壽鉉,金 龍,金必洙,尹秀鳳,朴永浩,尹信容 동국대학교 대학원 1992 大學院硏究論集-東國大學校 大學院 Vol.22 No.-

In a capacitor-discharge impulse magnetizer, a magnet is magnetized by the discharging current of capacitor The actual construction of magnetizing fixtures and discharge matching is expensive and time-consuming. Since the parameters of the impulse magnetizer have been determined and the resistance and inductance of such a magnetizing fixture can be easily computed using FEA, it is possible to predict the performance of such a fixture without actually building it. This paper describes that by mathematically modeling the capacitor-discharge impulse magnetizer fixture the problem can be solved with resonable predictability. The basic equations are presented and used to predict the magnetic-field intensity inside the fixtures. Finite-Element-Analysis is also used as part of the design process

옻골마을의 生活空間利用에 關한 硏究

백영흠,양신정 대구대학교 과학기술연구소 1998 科學技術硏究 Vol.5 No.3

This study has researched on the utilization of living space through interview with resider in the same family OKGOL village. OKGOL is located Doon San Dong Dong Gu, Tae-Gu and constitute of Kyoung-Ju Choi's The purpose of this research was considered to subsist and to use of living space through food, clothing and shelter and entertainment of the OKGOL village. As the ivsult of this study, the space of men's and women', is separated in the living space of the same family OKGOL village. This separation is due to Koreaan traditional consideration. Speciall, This village has independent storage which is called Duy-Ju in each of houses. And dwellings' pattern is following traditional method.

복잡한 지하구조 해석을 위한 물리탐사 자료 분석에 관한 연구

신득현,김훈,오석훈,서백수 江原大學校 産業技術硏究所 2007 産業技術硏究 Vol.27 No.B

Currently, geophysical method is applied for understanding the subsurface geologic structure economically and systematically, but there exists some limitations on recognizing complex subsurface structures precisely by a single geophysical method. In order to understand the complex subsurface structures, we applied various geophysical methods including seismic refraction survey, two-dimensional resistivity survey, seismic tomography survey, suspenaion-ps log, and understood distribution of low velocity, low resistivity range of resistivity survey and correlation of an intersecting point, velocity distribution of seismic tomography survey.

Ⅲ급 부정교합의 수술-교정 치료시 상악 소구치 발치가 치열궁 폭경 변화에 미치는 영향

이신재,홍성준,김영호,백승학,서정훈 대한치과교정학회 2005 대한치과교정학회지 Vol.35 No.1

본 연구에서는 Ⅲ급 수술-교정 치료 방법에 영향을 미치는 치열 상의 요소를 파악함으로써 술전 교정시 상악 소구치 발치와 비치의 판단에 필요한 임상적 정보를 얻고자 골격성 Ⅲ급 부정교합 환자의 수술-교정 치료시 흔히 선택되는 상악 제1소구치 발치로 치료된 군과 비발치로 치료된 군 간의 치료전/후 상/하악 개별 치아 이동 양상과 치열궁 폭경의 변화 양상을 비교 분석하였다. 이를 위하여 비발치로 Ⅲ급 수술-교정 치료를 마친 환자 (24명) 와 술전교정 치료시 상악 제1소구치가 발치된 환자 (31명) 의 치료 전/후 모형 상에서 개개 치아의 근원심/협설측 각도변화와 상/하 치열궁 폭경의 변화를 측정한 후, 두 군 사이의 교정적 치아 이동 양상을 비교 분석한 후 상/하 치열궁의 조화를 이루는데 필요한 치열궁 폭경의 변화와 이에 기여하는 치아 변위와의 관계를 분석하기 위하여 상관 분석과 회귀 분석을 시행한 결과 발치 군은 비발치 군에 비하여 상악 치열궁 폭경의 감소가 컸으며, 이는 상악 구치의 inclination 감소에 크게 영향 받은 것으로 관찰되었다. 하악 치열에서는 inclination의 증가와 폭경의 증가가 있었으나, 비발치/발치군간의 차이는 유의하지 않았다. 본 연구의 결과 결론적으로 Ⅲ급 수술-교정 치료시 술전 상악소구치 발치는 상악 구치부 치열궁 폭경의 감소에 크게 영향을 미치므로, 상악 소구치 발치에 대한 판단은 상/하악 치열궁의 폭경 및 구치부 경사도 문제와 연계하여 고려해야 할 사항으로 생각되었다. Collective changes caused by orthodontic tooth movement evaluated in a specific treatment modality could give suggestive information on the specific treatment strategy. The aim of this study was to investigate retrospectively the characteristics of the orthodontic tooth movement during surgical-orthodontic treatment in order to provide an effective presurgical orthodontic treatment planning for the maxillary premolar extraction modality in the skeletal Class Ⅲ malocclusion patient. Pre- and post-treatment dental casts of skeletal Class Ⅲ malocclusion patients with nonextraction (N=24) and the maxillary premolar extraction (N=31) were collected. The angulation and inclination measuring gauge (Invisitech Co. Seoul, Korea) was used to evaluate the orthodontic tooth movement. The changes in the maxillary and mandibular dental arch widths were also measured from the canines to the second molars. As a result, more palatal Inclination change in the maxillary dentition was found with the premolar extraction modality than with the nonextraction modality. Linear regression analysis showed that the inter-arch width coordination was mainly due to the inclination changes of maxillary posterior teeth. We conclude that the indications and proper treatment planning for surgical-orthodontic treatment in skeletal Class Ⅲ malocclusion with maxillary premolar extraction could depend partly on the magnitude of the transverse inter-arch coordination especially in the maxillary dentition.

수술-교정 치료 환자의 통제 소재

이신재,안석준,백승학,김태우,장영일,양원식,서정훈,남동석 대한치과교정학회 2002 대한치과교정학회지 Vol.32 No.4

교정치료와 악교정 수술을 필요로 하는 환자가 점증하는 현 시점에 비추어, 이에 대한 기술적인 측면의 발전과는 달리 수술-교정 치료 환자에 대한 정신사회학적 혹은 정신심리적 양상에 대한 객관적인 정보는 그리 많은 주목을 받는 편이 아니었다. 수술-교정치료는 과학적인 치료과정이긴 하지만, 어느 정도 심미적 혹은 예술적인 측면을 지니는 선택 치료의 면모를 지닌다. 그러므로 치료에 대한 환자의 주관적인 느낌은 치료 기술이나 치료의 의학적 성공 여부보다 더 큰 영향을 미칠 수 있다. 그러므로, 수술-교정 (혹은 교정) 치료에 대한 환자의 반응을 예측하기 위한 정신심리적인 정보는 치료에 유용한 지표가 될 수 있다고 가정할 수 있다. 통제 소재에 대한 연구는 인간의 다양한 행동을 예측하기 위한 유용한 지표로 알려져 왔는데, 본 연구에서는 42명의 수술-교정치료 환자와 성별/연령별로 표본 추출된 42명의 통상적 교정치료 환자를 대상으로 삼아 정신=심리적 비교 및 분석의 방법으로 두 가지 종류의 내외 통제 소재(internal/external locus of control) 검사를 시행하였다. 그 결과 수술-교정치료군에서만 남자가 여자에 비하여 낮은 외적 통제(높은 내적 통제)의 경향을 보였다. 결론적으로 수술-교정치료 환자의 정신심리적 기반은 성형 수술 환자와는 달리 교정치료 환자와 유사한 경향을 지닌 것으로 생각되었다. Surgical-orthodontic treatment is an increasingly more common dental procedure whose unique psycho-social or psychological feature has not been fairly quantified objectively. Since the treatment of a surgical-orthodontic (or orthodontic) patient is part science and part art, a subjective recognition of a patient about his or her own treatment may be more important than technical success during and after treatment. Therefore, the knowledge of the patient''s underlying psychological status could be useful in the prediction of patient's response to surgical-orthodontic (or orthodontic) treatment. The purpose of this study was to investigate and evaluate the psychological difference between conventional orthodontic patient and surgical-orthodontic patient by using locus of control (LOC) examination. Locus of control scale has been proven to be extremely useful in the prediction of a variety of human behaviors. Two types of locus of control data (I-score, Internal locus of control score ; E-score, External locus of control score) were obtained for 42 surgical-orthodontic patients and randomly selected 42 conventional orthodontic patients (as a control group) matched for age and gender. No statistically significant difference was observed in the scale of internal and external locus of control between the groups of surgical-orthodontic patients, males showed lower E-score (external locus of control score, higher internal locus of control tendency) than females. The results of this study suggested that the psychological background of surgical-orthodontic patients, in contrast with that of cosmetic surgery patients, has a similar disposition with that of orthodontic patients.