솔-젤공정에 의해 기공보정된 한외알루미나 여과막의 기체투과 특성평가

조원준,정은정,이진휘,서성조,서동호 서울産業大學校 1997 논문집 Vol.45 No.1

서로 다른 입자크기의 3층구조를 갖는 튜브형태의 한외알루미나 분리막은, 일반적으로 제조공정중 분리층에 결손부분이 발생하기 때문에 낮은 선택도 및 제거율을 보인다. 이와같은 결손부분을 보정 하고 보정전, 후의 분리막에 대한 기체장치에 의한 투과도(permeability) 및 선택도(selectivity)를 측정하였다. Colloidal silica 솔의 deposition에 기인하여 기체 투과율의 감소가 60%였다. 한외알루미나 여과막의 보정에 있어서 습도조절에 의한 선택적 적심법은 비록 deposition에 의한 문제점을 내포하고 있으나, 기체분리에서도 효과적인 방법이다. The 3-layer tubular type alumina membrane consisting of different pore size shows the decreased selectivity and rejection because of cracks in the separation layer generally occurred during the manufacturing process. For the comparing of native and modified membranes, the modified membranes were tested by permeability by gas equipments, selectivity for the gases after caulking. The permeabilities are decreased 60% for the gas caused by deposition of colloidal silica sol after caulking. In conclusion, the Alternative Wetting Method by humidity control had the effect for the modification of ultrafiltration alumina membrane for separation of gases, though having problem of deposition.

대화식 무선통신 기능을 가진 이동로봇을 이용한 원격 탐색/감시 시스템의 개발

조성제,권용진 한국항공대학교 1999 論文集 Vol.37 No.-

이동로봇에 통시기술을 결합하여 응용하려는 시도는 Tele-Robotics 라는 학문의 한 분야로 이미 국내외적으로 정착되고 있다. 초기에 Tele-Robotics, Tele-Operation기술은 극한작업을 위해서만 사용되었으나, 최근에는 일상생활과 밀접한 다양한 분야로 그 응용분야를 넓혀가고 있다. 본 논문에서는 대화식 무선통신 기능을 가진 이동로봇을 제작하고 그와 통신할 수 있는 호스트 시스템을 구성하여 이동 로봇의 원격 제어, 원거리에서의 지형 탐색, 데이터 수집 기능 등을 구현함으로써 본격적인 원격 탐색 시스템 구축을 위한 기초 연구를 수행하였다. The effort to combine communication technology with a mobile robot and its application has already become a part of study. In the introducing stage, the tele-robotics, tele-operation technology was applied to extremely hard or dangerous work where man cannot reach, however, its application range is becoming wider and wider into various human lifes. In this paper, we designed and implemented a mobile robot and a host system which interact with each other by wireless communication. The robot is remote controlled by the host for remote surveillance and data collection which may be a basic of the remote surveillance system.

三國史記 및 三國遺事에서 본 體育像에 關한 硏究

趙福德,朴眞成,黃太相 釜山大學校 附設 體育科學硏究所 1989 體育科學硏究所 論文集 Vol.5 No.-

Based on the above statements, we can conclude the sanitary though and physical activities in terms of physical education as follow ; 1. Many sacrificial rites were performed for a good health, happiness and the treatment of diseases on the basis of polytheism in those days. Three Kingdoms accepted the Buddhism as their national religion, by which they wished for longevity and good health. They also realized the viewpoint of their future, their life and death by sutra-chanting and praying. 2. Such sports as achery, Tuho(a game of throwing arrow into the jar), ball-kicking, Ssirum(Korean style wrestling), shooting on horseback, animal hunting, Chucheon(a rope swing) Jeopo(the Four-Stick Game;yuch), Baduk(Korean checkers), Aksak(dice play), Jukma(stilts), kiteflying were performed in order to defend the country, extend the territory and rule the citizens as a means of military exercise. 3. Therefore, it is concluded that in those days military arts and physical activities were based on the cultivation of the harmonious human being not only intellectually, emotionally but also socially, politically, religiously and militarily, which became the basis of the modern physical education.

피부과 전문의가 바라본 피부질환 진료환경의 변화

조성진 건강보험심사평가원 2021 HIRA RESEARCH Vol.1 No.1

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餘暇活動을 通한 健全生活의 實踐方案

朴眞成,金明祚,趙榮濟 釜山大學校 附設 體育科學硏究所 1990 體育科學硏究所 論文集 Vol.6 No.-

Some practical plans are presented to construct a sound life by enjoying sound leisure activitives chiefly consisting of sports good for health, not amusements which are nonproductive, consumptive and pleasure-seeking, which are prevalent in our society today. By the way, in order that these plans should be widely spread as the nation-wide social movement, we should create the atmosphere of sound life by having people realize the basic idea of the sound life campaign and inducing them to participate in the sports activities voluntarily. Therefore, we could not only enhance the quality of individual life, but also fix the sound life culture from the national standing by sublimating the sound life campaign as the centripetal campaign for the community harmony, and enjoying the healthy life thanks to the participation in lots of leisure activities chiefly consisting of sports activities. Based on the above-mentioned basic direction and policy of leisure activities, some practical plans for the sound life are summarized as follows; 1. A high dimensional leisure culture should be fixed in order to fulfill the future-oriented man's hopeful expectations for tomorrow. 2. Sound life campaign should be encouraged independently, and be gradually converted to the voluntary, nongovernmental social movement from the government-oriented policy. 3. More cultural facilities which we can utilize with small expense should be continuously built in a long-term project, and they should be equipped with lights and opened to the common people during the night. 4. We should enjoy the new and fresh taste of life which we can't feel in our routine lives by resorting to the natural environments, such as mountains, beaches, parks, and greenbelt area. 5. Recreational sports, which are sound and enjoyful, should be encouraged instead of the competitive sports. 6. It is quite natural that we pay attention to the juvenile problem, but we should develop and encourage the sports program for the old people against the senescent society together with the programs for the neglected, housewives and the handicapped.

논토양 유형별 토양검정에 기초한 질소 적정 시비량

최용조,이영한,이성태,강진호 한국환경농학회 2006 한국환경농학회지 Vol.25 No.1

神闕의 穴位 특징과 鍼灸治療에 대한 문헌 고찰

안성훈,조명수,송재수,도진우,김종성,손인철 한국전통의학연구소 2002 한국전통의학지 Vol.12 No.1

This study was designed to investigate the location of Sin-Guel(CV_(8), 神闕) through literature research. We extracted the part about the location of Sin-Guel(CV_(8), 神闕) from ancient and modern oriental medical literature which were used commonly in clinic. The results were summarized as follows; 1. The location of Sin-Guel(CV_(8), 神闕) were generally recorded DangJeJung. 2. Sin-Guel(CV_(8), 神闕) placed in middle of linea alba. 3. Treatment effect of moxibustion on Sin-Guel(CV_(8), 神闕) were recorded as diarrhea, dropsy, prolapse of the anus, stomachache, paralysis etc.. 4. Acupuncture therapy on Sin-Guel(CV_(8), 神闕) is dangerous because of inflammation, it is suggested that acupuncture therapy may be possible if acupuncture therapy do not induce inflammation on Sin-Guel(CV_(8), 神闕).

저압 MOCVD법에 의한 (100)-GaAs 기판 위의 Ga_xIn(1-x)P 성장과 특성

전성란,손성진,조금재,박순규,김영기 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.17 No.-

x??0.51인 Ga_xIn_(1-x)P 에피층을 저압 MOCVD 성장법으로 TEGa(triethylgallium), TMIn(trimethylindium) 등의 MO(metalorganic) 원료와 PH_3(phosphine)를 사용하여 GaAs(100) 기판 위에 성장하였다. 성장조건에 의한 표면 morphology, 결정결함, 성분비, PL spectra, 운반자 농도와 이동도 및 DLTS spectra와 같은 성장층의 특성을 관찰하였다. 650℃의 성장온도와 V/Ⅲ 비, 즉 TEGa와 TMIn 두 원료의 유량에 대한 PH_3의 유량비가 160∼220일 때 가장 좋은 성장표면을 나타내었다. 성장률은 PH_3의 유량변화에 아무런 영향을 받지 않음을 알 수 있었다. Ga_0.51In_0.49P 에피층과 기판의 격자상수 차에 의한 격자 부정합 Δa_⊥/a_0은 약 (3.7∼8.9)×10 exp (-4)이었으며 실온과 5K에서 에피층의 PL 피크 에너지는 각각 1.85 eV와 1.9 eV였다. 성장층의 운반자 농도와 이동도는 V/Ⅲ 비에 따라 달라지는데 그 비가 120에서 220으로 증가함에 따라 농도는 1.8×10 exp (16) ㎝^-3에서 8.2×10 exp (16) ㎝^-3로 증가하였고 이동도는 1010 ㎝/V·sec에서 366 ㎝/V·sec로 감소하였다. Epitaxial layers of Ga_xIn_(1-x)P with x??0.51 were grown on the GaAs substrates oriented 2℃ off (100) toward <110> by low pressure MOCVD growth technique using triethylgallium (TEGa), trimethylindium (TMIn) and phosphine (PH_3). Surface morphology, crystal defects, composition, photoluminescence spectra, carrier concentration and DLTS spectra of the grown layers were investigated. Good quality epilayers with featureless surface were obtained at growth temperature of 650℃ and V/Ⅲ ratio, i.e., PH_3 flow rate divided by the sum of TEGa and TMIn flow rates, of 160 to 220. The growth rate turned out to have no dependence on phosphine flow rate. The lattice mismatchs Δa_⊥/a_0 between grown Ga_0.51In_0.49P epilayer and GaAs substrate were (3.7∼8.9)×10 exp (-4) and the PL peak energies of the epitaxial layer at room temperature and 5K were 1.85 eV and 1.9 eV, respectively. With increasing V/Ⅲ ratio i.e., phosphine flow rate, from 120 to 220, the carrier density and mobility of undoped epitaxial layers increased from 1.8×10 exp (16) to 8.2×10 exp (16) ㎝^-3 and decreased from 1010 to 366 ㎝/V·sec, respectively.

상악 전치부 후방 견인 시 이동 양상과 응력 분포에 관한 삼차원 유한요소법적 연구

정애진,김운수,이수행,강성수,최희인,조진형,김상철 대한치과교정학회 2007 대한치과교정학회지 Vol.37 No.2

상악 전치부 후방 견인 시의 이동 양상 및 응력 분포를 건조 두개골을 전산화 단층 촬영에 의해 3차원 영상화한 유한 요소 모델 상에서 알아보고자 하였다. 피질골 절단술의 시행 여부와 고정원, 힘의 작용점을 각기 달리 설정하여 8개의 실험군을 구성하여 비교하였다. 통상적인 T-loop을 이용하여 공간폐쇄를 하는 경우 전치부는 후하방으로 경사이동 하였으며, 구치부에서도 약간 전방 이동하였다. 피질골 절단술을 동반하여 전치부를 견인한 경우, 전치부 골편에서의 응력 분포가 전반적으로 넓게 분포되었으며, 전치부 경사의 정도가 적은 반면에 변위량은 훨씬 더 많았다. 협측에서의 견인 시 상악 협측에 식립된 미니 임플랜트와 견치 power arm간에 견인력을 가한 경우가 미니 임플랜트로 고정원이 강화된 제2소구치와 견치 브라켓 간에 견인력을 가한 경우보다 전치부의 후하방 경사 정도가 적었다. 구개측에서 power arm에 대한 견인 시 정중구개봉합 부위에 식립한 미니 임플랜트로부터 견인력을 가한 경우가 상악 제1, 2대구치 간 구개면에 식립된 미니 임플랜트로부터 견인력을 가한 경우보다 전치부의 후하방 경사 정도가 컸다. 이러한 결과로써 치아이동 시 피질골 절단술의 효과와 저항중심에 대한 교정력 벡터 조정의 의미를 확인할 수 있었다. Objective: The purpose of this study was to evaluate the displacement pattern and the stress distribution shown on a finite element model 3-D visualization of a dry human skull using CT during the retraction of upper anterior teeth. Methods: Experimental groups were differentiated into 8 groups according to corticotomy, anchorage (buccal: mini implant between the maxillary second premolar and first molar and second premolar reinforced with a mini implant, palatal: mini implant between the maxillary first molar and second molar and mini implant on the midpalatal suture) and force application point (use of a power arm or not). Results: In cases where anterior teeth were retracted by a conventional T-loop arch wire, the anterior teeth tipped more postero-inferiorly and the posterior teeth moved slightly in a mesial direction. In cases where anterior teeth were retracted with corticotomy, the stress at the anterior bone segment was distributed widely and showed a smaller degree of tipping movement of the anterior teeth, but with a greater amount of displacement. In cases where anterior teeth were retracted from the buccal side with force applied to the mini implant placed between the maxillary second premolar and the first molar to the canine power arm, it showed that a smaller degree of tipping movement was generated than when force was applied to the second premolar reinforced with a mini implant from the canine bracket. In cases where anterior teeth were retracted from the palatal side with force applied to the mini implant on the midpalatal suture, it resulted in a greater degree of tipping movement than when force was applied to the mini implant between the maxillary first and second molars. Conclusion: The results of this study verifies the effects of corticotomies and the effects of controlling orthodontic force vectors during tooth movement.

감마선과 Methyl Bromide 처리가 사과의 생리화학적 품질에 미치는 영향

강호진,정헌식,조덕조,변명우,최성진,최종욱,권중호 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2003 한국식품저장유통학회지 Vol.10 No.3

감마선(0, 0.5, 1, 2, 3 kGy) 조사와 methyl bromide(MeBr, 26 g/㎏, 4hr) 훈증 및 이들의 처리시기가 사과의 생리화학적 품질특성에 영향을 비교하여, 검역처리를 위한 ◁그림 삽입▷ (원문을 참조하세요) 감마선 조사의 응용성을 검토하였다. 감마선과 MeBr 처리에 따른 사과의 생리화학적 품질평가에서 2kGy 이상의 감마선 조사와 MeBr 훈증은 사과의 일부 생리화학적 품질특성의 변화를 촉진시키는 것으로 나타났다. 감마선과 MeBr의 처리시기별로는 수확 직후보다는 저온(0℃)에서 40일 정도 보관 후 처리한 대체적으로 품질손상이 적은 것으로 나타났다. 따라서 1kGy 이하의 감마선 조사와 지연조사는 사과 과실의 품질을 비교적 양호한 상태로 유지할 수 있어 검역처리 기술로 활용성이 있는 것으로 생각된다. 'Fuji' apples were treated by gamma irradiation (0∼3 kGy) or methyl bromide fumigation at commercial conditions (MeBr, 25 g/㎏, 4 hr) for quarantine purpose at two different treatment timing after harvest and stored under air a 0℃ for 4 months. Associated with the treatment timing of irradiation or fumigation, after 40 days of storage at 0℃ following harvest was more adequate than immediately after harvest in keeping qualities of stored apples. However, more than 2 kGy irradiation and MeBr fumigation were detrimental to physiological and chemical qualities of the fruits. These results show that less than 1 kGy irradiation at the delayed timing has a possibility to be applied as a quarantine procedure without significant changes in the quality of apples.