Diffusion of Zn into n-InP

김선태,박상보 大田工業大學 1990 한밭대학교 논문집 Vol.7 No.1

A systematic investigation on diffusion of Zn into InP has been performed using elemental Zn and P as source materials in sealed ampoule at temperature range of 550℃ to 700℃. Under well-defined diffusion conditions, the relation between diffusion depth with the amount of Zn and P in source and the diffusion time gives the good control of the diffusion depth. A high P-pressure source resulted in more desirable diffusion properties allowing a high planar fronts and diffusion-induced dislocation free layers.

멕시코와 네팔에서 도입한 고추 유전자원의 풋마름병 및 역병 저항성

고보환,김정훈,전수경,이지선,김병수 慶北大學校 農業科學技術硏究所 2005 慶北大農學誌 Vol.23 No.-

Above 130 accessions of pepper consisting of 50 introductions from Mexico and Nepal, and resistant and susceptible controls were tested for resistance to bacterial wilt and to Phytophthora root rot at seedling stage by artificial inoculation. As the results, KC897, KC939, KC936 were newly found resistant to bacterial wilt in addition to already known resistance sources such as KC126, KC350, KC351, KC353. No new sources of resistance to Phytophthora root rot were found among the introductions from Mexico and Nepal.

기관내관 소독방법 개선에 따른 간호업무 시간단축 및 비용 절감 효과

이행선,김해리나,김은숙,김보람,성선숙 한국의료QA학회 2008 한국의료질향상학회지 Vol.14 No.1

Background: The purposeof innercannula is to protect the upperair wayand permitair to pass freely, in addition, to provideendotrachealsuction, artificial respiration and to maintain adequate oxygensaturation. The tubeneeds to be sterilizedformaintenanceand cleannessof air wayand forprevention of bronchospasm. However, it has been reportedthat there is no guideline forsterilization and manyhospitalsconducttheirown sterilization methods, forexample, oncea day(13's generalhospital), three timesa day(TheCatholic University of Korea STMary's hospital) or evenno cleansing. Consequently, the QI team of our hospitalsuggested the SOP(standard operatingprocedure) of sterilization and evaluate cost and timeeffect in nursing. Method: 1) Benchmarking of 13's neurosurgery departmentof generalhospital in Seoul 2) Investigation of test recordsof sputumculture from patientswith intubation for tracheotomy 3) Checkof resultsof 02 Sat. monitoring to confirm of maintainingopenedair way Result : 1) Improvement of process: decrease of excess sterilization of inner cannula (from 3 timesa day to oncea day) 2) Costeffects: saving over10 million wonper oneyear 3) Providing better nursing: time effects (30 mina day) permit to conductmorenursing activities Conclusion: Itcan get Costand timeeffectsin nursing withimproved sterilization methodof innercannula It needs to do researchon improvement of the monthly exchangeprotocol of outercannula and providesupportingdata forthe properexchangeschedule. The resultof additionalmicroorganism detection frompatients withnewprocessneeds to be evaluated furthermore.

성장기 아동과 성인에서의 Ⅱ급 1류 부정교합치료양상에 관한 두부방사선 계측학적 비교연구 : ADOLESCENTS CONTRASTED WITH ADULTS

강보선,양원식 대한치과교정학회 1995 대한치과교정학회지 Vol.25 No.3

본 연구는 Ⅱ급 1류 부정교합의 치료에 있어 치료전의 환자연령에 따른 부정교합치료의 양적 차이를 알아보고, Johnston analysis를 통해 협측 치열군의 교정이 어떤 방법으로 이루어지는지, 즉, 두개저에 대한 또한 상호간에 대한 상, 하악 각각의 성장양과 기저골에 대한 구치의 이동양을 측정하여 구치부의 교정이 어떻게 이루어지는지를 알아보고자 했으며 서울대학교병원 치과진료부 교정과에 내원하여 Ⅱ급 1류 부정교합으로 진단되어 상, 하악 제1소구치를 발치하여 치료를 받은 여자환자 52명중 치료전의 연령을 기준으로 성장기 아동군과 성인군으로 대별하여 치료전,후 두부방사선사진을 계측, 비교분석하여 다음과 같은 결론을 얻었다. 1. 치료전,후의 상악골의 전후방적인 위치변화에 대한 비교를 통해서 성장기 아동군과 성인군간의 유의한 차는 없었다. 그러나 하악골의 전후방적 위치변화에 있어서는 두 군간에 유의한 차이를 보였다.(p<0.05) 2. 치료 전,후 수직고경의 변화에 있어, 성장기 아동군에서는 전안면고경, 후안면 고경, 하안면고경 등이 성장과 치료의 효과로 유의성있게 증가하였으며(p<0.001), 성인군에서는 유의성있는 변화가 없었다. 3. 치료전,후 교합평면의 변화에 있어, 성장기 아동군에서는 교합평면의 경사도의 유의성있는 변화가 발견되지 않았으나, 성인군에서는 교합평면의 경사도가 유의성있게 증가하였다.(p<0.05) 4. Johnston analysis를 이용한 분석으로, total molar correction의 양에 있어서 성장기 아동군과 성인군에서 유의한 차이를 보였다.(p<0.05) 5. Johnston analysis를 이용한 분석에 의해 성장기 아동군에서는 total molar correction의 63%가 하악골성장에 의해, 37%가 치아이동에 의해 이루어짐을 관찰했다. 성인군에서는 total molar correction의 99%가 치아이동에 의해 이루어졌다. The purpose of this study was to quantitate differences in the nature of the correction of Angle's Class Ⅱ div 1 malocclusion dependent on the patient's age at the time of treatment. The sample consisted of 27 female patients in the adolescent group with a mean initial records age of 11.8 years and 25 female patients in the adult group with a mean starting age of 21.1 yrs. Lateral cephalometric head films were taken before and after orthodontic treatment with four bicuspid extraction. The results were obtained as follows. 1. None of maxillary skeletal parameters exhibited a significantly different in tretment change between adolescents and adults. But, in mandibular skeletal measurements, there were significant differences between two groups.(p<0.05) 2. Measures of vertical dimension in the adults remained unchanged during treatment, reflecting the effective absence of growth. 3. The steepness of occlusal plane in the adults changed significantly.(p<0.05) In contrast, the adolescents displayed stability of the occlusal plane. 4. According to the Johnston analysis, there was a significant difference in the total molar correction between two groups.(p<0.05) 5. According to the Johnston analysis, differential mandibular growth in the adolescents contrubuted 63% of the total molar correction, with orthodontic tooth movement accounting for the remaining 37%. In the adults, dental movements comprised 99% of the correction.

Expansin 유전자를 이용한 담배의 형질전환과 형질전환체 선발

백승준, 김보미, 장종오, 엄유리, 석영선, 이이 충북대학교 연초연구소 2008 煙草硏究 Vol.21 No.-

-본문참고-

정신지체아동의 자아개념 개선을 위한 미술치료교육

최중옥,윤보선 한국특수아동학회 2001 특수아동교육연구 Vol.3 No.-

본 연구는 정신지체아동의 수행능력과 요구에 적합한 자아개념 미술 활동 프로그램을 구안ㆍ적용하여 첫째, 미술활동 과정에서 관찰된 내용과 미술작품을 중심으로 둘째, 미술활동 프로그램 실시전과 후의 인물화를 통하여 셋째, 미술활동 프로그램 실시전과 후에 자아개념 검사를 실시하여 경도정신지체아동들의 자아개념의 향상정도를 분석하였다. 연구의 방법은 y초등학교 의 특수학급에 입급된 시간제 특수아동 중 3명의 경도정신지체아동을 대상으로 20주 동안 26회기의 미술활동 프로그램을 수행하는 과정에서 변화된 자아개념을 참여관찰과 심층면담, 비디오 녹화 등의 질적 연구 방법에 의하여 임상적으로 분석하였다. 이러한 연구의 결과로서는 첫째, 미술활동 과정에서 관찰된 내용과 수집된 기록화 자료를 토대로 자아개념을 분석하면 대상 아동의 일반적 자아개념, 학급활동 성취 자아개념, 사회적 자아개념, 정서 및 신체적 자아개념이 긍정적 변화를 나타내었다. 둘째, 인물화에 의한 진단으로부터의 자아개념의 변화를 분석하면 A의 경우 무능감과 부적응감의 해소를 나타내었으며 B의 경우 열등감과 죄악감이 해소됨으로써 정서적 자아개념이 변화되었으며 C의 경우 타인에 대한 적의가 없어지고 공격성이 다소 해소됨을 알 수 있었다. 셋째, 미술활동 프로그램의 수행 전과 후의 자아개념 검사를 실시하여 사전ㆍ사후 점수의 변화를 비교한 결과 세 아동 모두 사후검사에서 점수의 향상을 나타내었다. The purpose of this study is to analyze self-perception improvement extent on children with mild mental retardation by manufacturing and applying Art Therapy Program which is adapted to performance and needs of children with mild mental retardation. The subject of this study were 3 children in 4th, 5th and 6th grade one each other which were in the elementary special education class for mentally retarded children in Busan. In took 20 weeks to implement Art Therapy Program for Self-perception. The method of this study was participating observance, interview in-depth, video-tape recoding etc... They were used to analyze clinically self-perception improvement through the process of Art Therapy Program. The results of this study is summarized as the followings; First, in consequence of analyzing art productions which were collected art activities process and participant observation records, there were positive improvement in general self-perception, class-activity achievement self-perception, social self-perception, emotional-physical self-perception. Second, in consequence of analyzing transition of figure drawings between pre and post Art Therapy Program, the helplessness and the unadaption of child 'A' was dissolved, child 'B' was improved in emotional self-perceptionion by dissolving the inferiority and the sense of guilt and child 'C' was disappeared the hostile feeling and broke off the attack. Third, in consequence of analyzing the mark of test on self-perception between pre and post Art Therapy Program, there were improvements on marks of self-perception in all significantly. The recommendation for further study is suggested as the followings; First, It is necessary to develop an measurement instrument of self-perception for children with mild mental retardation. Second, It is needed to develop Art Therapy Program variously which could be treat to self-perception of children with mild mental retardation. Third, It is necessary to develop Family Self-perception Art Therapy and to implement in elementary school.

커튼월 단열 앵커링 유닛의 난방에너지 성능 및 경제성 평가

강승희,구보경,주선경,송승영 대한건축학회 2003 대한건축학회논문집 Vol.19 No.12

Curtain wall system has been widely applied to the residential unit of high-rise complex building which is the new trend in a recent construction market. It is very important to improve the insulation performance of curtain wall anchoring unit since it is composed of materials with high thermal conductivity, such as aluminium, steel and so on. Thus this study aims to evaluate the heating energy performance and economical efficiency of various alternatives which are different in position and material of insulation. As results, alternative of inserting the urethane washer & pad and coating the anchoring unit with urethane foam can improve the heating energy performance and L.C.C(Life Cycle Cost) by 6.33% and 0.95%, respectively, as compared with the existing case.

고속·고정밀 금형가공센터 개발 Ⅲ

최원선,이창호,박보선,김태형 한국공작기계학회 2002 한국공작기계학회 추계학술대회논문집 Vol.2002 No.-

In order to manufacture a precision mold/die by machining, users need high speed & precision mold/die machining center. So, for development of this machine, we intend to use linear motor that is instead of ball-screw, servo-motor and coupling, high-speed spindle of pressurized air journal bearing and composite materials. In this paper we research column moving type and table moving type. The former is mainly piling 3 axes on one moving body, the latter is consist of two independent carriages. Both types are available to high speed & precision machine, but we finally draw a conclusion column moving type due to an advantage of high-speed control of linear motor.

혈액 투석 환자에서 중심정맥 협착에 대한 스텐트 삽입술 : Wallstent Placement

임대승,노상필,이유선,정승현,김보영,이정우,강정아,김정희,이민수,정준용,최시완,정진옥,성인환,이강욱,신영태 충남대학교 의과대학 의학연구소 2002 충남의대잡지 Vol.29 No.1

Stenosis of central vein is a common complication arising after percutaneous subclavian vein catheter insertion performed for temporary vascular access in chronic renal failure patients undergoing hemodialysis. There are several treatment methods for the condition like percutaneous angioplasty(PTA), stent insertion, and surgery, but recent trend is toward PTA and stents. Among the patients diagnosed with chronic renal failure from March 1993 to May 2002 and undergoing hemodialysis through AV fistula, the 14 Patients in whom central vein stenosis arose were selected for the study. A total of 28 percutaneous interventions(5 PTA and 23 stent placement) were performed, and restenosis rate and the time taken till the restenosis in de novo lesions and instant lesions were compared. All 28 cases were operated successfully. The 14 cases that received both anigioplasty and stent placement initially. (de novo lesion : 14 cases), Among the 10 cases with de novo lesion that followed up more than 1 year, 3 cases are currently undergoing hemodialysis without restenosis, and the remaining 7 cases have recurred stenosis with the mean time to restenosis of 10.9 months. In the 7 cases in whom stenosis recurred, 11 interventions were done(instent lesion: 11 cases). 4 of these were using only ballon angioplasty with 100% restenosis rate and the mean time of 3 months until restenosis. The remaining 7 cases were using both balloon angioplasty and stent placement, also with 100% restenosis rate but with the mean time of 12 months until restenosis, which was later than the group receiving only balloon angioplasty. In treating the patients with central vein stenosis, stent placement seems to be more advantageous over PTA in terms of restenosis rate and the mean duration of patency. In the case of instent lesion, inserting the stent for the second time after stenosis recurred lengthened the duration of patency compared to performing balloon angioplasty alone.

Ruled Surface로 형성된 임펠러 블레이드의 5-축 가공에 관한 연구

정대일,조현덕,윤문철,최두선,신보성,이응숙 한국공작기계학회 2000 한국공작기계학회 추계학술대회논문집 Vol.2000 No.-

This paper describes the method and the process for impeller machining on 5-axis CNC machining center. Also, The CAD/CAM software for the impeller post processing is developed. The software can be interfaced with Solid-works software for confirmation of the impeller shapes. In this study, blades on impeller is described from Ruled-surfaces between two Ferguson curves. In this study, using 5-axis NC part program obtained from the developed software, a sample impeller was machined on 5-axis CNC machining center. The machined impeller was very agreeable to the designed impeller. Thus, theories proposed in this study can be very useful for the 5-axis machining of impeller blades with Ruled-surfaces.