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남문희,정희효,이관희,박준용 慶尙大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.12 No.-
Even though there are a lot of methods of promotion of load resistance for reinforced concrete T-beam bridge, the methods have been faults respectively. In this study, we will convert simple supported T-beam into continuous T-beam for promotion of load resistance and cancel joint. This method is decidedly superior to another method in maintenance, construction, economics and external appearance.
남문희,정희효,이관희,이수경 慶尙大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.12 No.-
Skewed slab bridge have designed a width beam, stress of skewed slab bridge is quite different in according with skew and width /length. Especially in case that we analyse skewed slab bridge as a width beam, stress of right angle direction against axis of bridge is not analysed. In this study we will present the stress of transverse axis to longitudinal axis of bridge according to skew and width/length.
전자상거래의 사용의도에 영향을 미치는 각각의 선행변수에 관한 비교연구
박관희,이송근 대구대학교 경제경영연구소 2011 경제경영연구 Vol.7 No.1
본 연구에서는 Davis가 제안한 기술수용모델(TAM)을 확장하기 위하여 제안된 5개의 변수 가운데서 어느 변수가 설명력을 가장 크게 높이고, 어느 변수가 설명력을 높이지 않는가를 비교 분석하였다. 본래의 TAM 모델의 설명력(R²)은 29%이었다. 이 5개의 변수가운데서 상호호환성이 41%로, 12%나 더 설명력을 높였다. 신뢰성과 즐거움은 모두 40%로 11%나 더 설명력을 높였다. 자기 효능은 32%로 3%나 설명력을 높였으며, 위험은 31%로 2% 설명력을 높였다. 따라서 본 연구에서는 상호호환성, 신뢰성, 즐거움이 가장 중요한 변수이었으며, 자기 효능 및 위험 변수는 별로 중요한 변수가 아니라는 사실을 밝혔다. This research analysed and compared 5 variables used to expand the original TAM model, also showing which variable increase most the expandability of TAM model or not. The expandability(R²) of original TAM model is 29%. The compatibility variable among these five ones shows 41% greatly, increasing 12% more compared with that of the TAM model. Also, trust and playfulness variables show 40% together, increasing 11% more. Self efficacy variable shows 32% with the increase of 3%, while risk shows 31% with the lowest increase of 2%. This research also revealed three variables, such as compatibility, trust, and playfulness, to be very important variables in terms of the expandability of TAM model, whereas self efficacy and risk are not important variables.
인사이드 킥과 인스텝 킥을 利用한 페널티 킥 成攻率 比較硏究
金官鉉,尹尙華,梁熙重 龍仁大學校 1992 용인대학교 논문집 Vol.8 No.-
In football games of late, owing to the development of 'tactics', 'strategy' and skillful defense ability, it grows very hard to get a goal, so 'the draw' is very freguent. As a result, penalty kick becomes often the core of victory or not. Accordingly, Which team can get more goals in penalty kick becomes exculusive victory factor in modern football games. After the comparative studing the accuracy and goal-making in case of 'Inside-kick' and 'instep-kick' which is ofter used in each game, the concussion is as fallows : 1.In accuracy-survey which target is used in penalty kick (in case of 'open-skill'), in side-kick is much more superior and accurate to Instep-kick. 2.In case of wrong-direction from the target A, Instep-kick gets more frequent miss kicking than Inside-kick. Miss-kicking ratio 33 miss kicks armong 310 kicks in Instep kick 72 miss kicks armong 310 kicks in Inside kick 3.Goal-king ratio in close skill 263 successful kicks armong 310 kicks in Inside kick 243 successful kicks armong 310 kicks in Instep kicks As showing the above, there seems be only 20 goals-difference at a glance but the difference is very meaningful considering many games are decided only by one goal-difference, 4.at the situation of facing with the goal keeper, the heason why there is not any conspiquous difference between Inside kick and Instepkick is that Instepkick can be kicked comparably with ease from the four parts of both corners and Instepkick has a lot of grounders when the foot is swing it is dynamically easy to kick the ball to the ground with pushing the sole of the foot. The reaction time of goal keeper may be considered with the advantage which Instepkick is not to be easily exposed to the goal keeper and easiness which goal keeper can defend the ball because the movement to down part is shorter than that in upper corner part. 5.In penalty-kick, through this survey, psycholgatical factor kicks works as improtant varialiles. As a resilt, being unconscious of goal-keeper, if one shoot the ball against target B with intensity and accuracy, lie gets a goal more easily.
4개 소구치 발치를 통한 교정치료시 나타나는 안모 연조직 변화에 관한 연구
진희관,문윤식 대한치과교정학회 1998 대한치과교정학회지 Vol.28 No.5
본 연구는 네 개의 소구치 발치 후 교정치료시 아직 성장중인 청소년과 왕성한 성장 시기를 지난 성인간의 연조직 변화의 차이를 관찰하고자 한다. 서울중앙병원 교정과에 내원한 환자중 남자 18세 및 여자 16세를 기준으로 성인군과 청소년군으로 연구대상을 나눈 후 두군간 연조직 변화를 조사하였다. 교정치료에 의한 치아 및 경조직의 변화를 포함하여 연조직 변화에 영향을 줄 것으로 예상한 구순후경, 앵글씨 구치관계 및 치열궁길이 부조화 등을 변수로 하여, 변수와 연조직 변화와의 상관관계를 조사하여 다음과 같은 결과를 얻었다. 1. 경조직 계측항목중 성인의 Is, Ii, U1PP, L1MP의 감소와 청소년의 Is, Ii의 감소 및 A, Pog'의 증가와 유의성이 있었고, 수직변화는 성인의 Pog의 증가. Ii의 감소와 청소년의 모든 항목의 증가와 유의성이 있었다. 2. 연조직 계측항목중 성인의 Ls, Li, ILS의 후방이동과 청소년의 Sn, SLS, Ls, Pog'의 전방이동이 유의성을 보이고, 수직변화는 성인에서 볼 수 없는 반면 청소년에서는 모든 항목에서 유의성을 보이며, 청소년의 이순각의 감소, 성인과 청소년의 ΔLsE, ΔLiE및 청소년의 ΔLiSP 등에서 유의차를 보였다. 3. 수직, 수평 기준선에 대한 경, 연조직 변화간 상관관계는 성인에서 ΔVIs와 ΔVLs가 가장 컸고, 그다음으로 ΔIi/ΔLi, ΔIi/ΔILS, ΔID/ΔLi와 ΔID/ΔILS 등이 높았으며 청소년에서는 수직, 수평 변화의 모든 항목간 유의성이 높았다. 4. 연조직의 profile변화는, 상하전치절단연의 후방견인 및 치축변화가 두군간 연조직변화와의 상관성에 차이를 보이나, 하순의 이동은 공통적으로 경조직 변화에 덜 영향받으며, 두군에서 비순각 및 이순각은 유의성있는 상관관계를 보이지 않았다. 5. 상순후경이 얇을수록 두군 모두 Sn-Pog'에 대하여 상순이 더 많이 후퇴하였고, 하순후경이 얇을수록 청소년군에서만 E-line 및 Sn-Pog'에 대하여 하순이 더 많이 후퇴하였다. 6. 치료전 앵글씨 구치관계는 연조직변화에 영향을 주지 못하였다. 7. 치료전 치열궁길이 부조화는 연조직변화에 영향을 주지 못하였다. The purpose of this study was to evaluate the differences of soft tissue profile changes between the growing patients and the adult who had passed the growth peak, in orthodontic treatment with four premolar extractions. The results which was taken by correlating the soft tissue changes with hard tissue changes, lip thickness, molar relationship and arch length discrepancy in both groups was like the followings. 1. Significant hard tissue changes were decrease of VIs, VIi, U1PP, L1MP, HIi and increase of HPog' in adults and decrease of VIs, VIi and increase of VA, VPog' and all vertical measurements in adolescents. 2. Significant soft tissue change were decrease of VLs, VLi, and VILS in adults and increase of VSn, VSSLS, VLs, VPog' and almost all vertical measurements in adolescents, and ΔLsE, ΔLiE in adults and ΔLsE, ΔLiE, ΔLiSP and ΔMlang was also significant 3. Correlation coefficient between ΔVIs and ΔVLs was the greatest in adults and the next was ΔIi/ΔLi, ΔIi/ΔILS, ΔID/ΔLi and ΔID/ΔILS. In contrast, all the vertical and horizontal measurements of hard and soft tissue in adolescents showed statistically significant corerrlation. 4. There were differences in correlation between soft tissue changes and incisor inclination and retraction at both groups, but the power lip, nasolabial angle and mentolabial angle were commonly less influenced by the hard tissue changes in both groups. 5. The thinner the upper lip was, the more the ΔLsSP was in both groups, and the thinner the lower lip was, the more the ΔLiE and ΔLiSP was in adolescents. 6. Molar relationship didn't influence the soft tissue profile changes. 7. Arch length discrepancy didn't influence the soft tissue profile changes.
열화상 정보를 이용한 온실 환경 모니터링 및 환경제어 시스템 개발
류관희 서울대학교 농업개발연구소 1999 농업생명과학연구 Vol.3 No.-
This study was carried out to investigate a plant-growth monitoring system using infrared thermography which can detect plant responses to improper environment. The experimental system for measuring leaf temperature using thermography consisted of a thermal camera, image processor, personal computer, and plant growth chamber. Under the N-deficiency or excess stress, the leaf temperatures of cucumber and lettuce were 2℃ and 1℃ lower than controls, respectively. Under the N deficiency stress the leaf temperature of hot pepper was 1℃ lower than control. Under the N excess stress, however, the leaf temperature of hot pepper did not change. Under the potassium deficiency or excess stress, the leaf temperatures of cucumber and hot pepper were 2℃ lower than controls, respectively. Under the potassium excess stress, the leaf temperature of lettuce was 2℃ lower than control. Under the potassium deficiency stress, the leaf temperature of lettuce did not change. Under the phosphorous deficiency stress, the leaf temperatures of cucumber and hot pepper were 2℃ and 1.5℃ than controls, respectively. However the leaf temperature of lettuce did not change. Under the water deficiency stress, the leaf temperatures of cucumber and lettuce were 2℃ and 1℃ higher than controls, respectively. However, the temperature of hot pepper was 1℃ lower than control. It was possible to detect the changes in leaf temperature by infrared thermography when subjected to nutrition or water stress. Since the changes in leaf temperatures were different each other for plants and kinds of stress, however, it would be necessary to add a nutrient measurement system to a plant-growth monitoring system using thermography.
《儒林外史》에 나타난 淸代 知識人의 近代意識과 그 한계
趙寬熙 中國語文硏究會 1996 中國語文論叢 Vol.11 No.-
<<유림외사>>에 나타나 있는 전망은 미래지향적이기 보다는 과거지향적이면서 순환적 이라 할 수 있다. 아울러 같은 맥락에서 오경무가 파악했던 현실모순의 성격 또한 내재적인것이라 할 수 있으며, 나아가 오경무가 제시한 대안 역시 즉자적인 수준을 벗어나지 못하고 있가. 결론적으로 근대를 눈앞에 두고 있던 청대 중엽의 지식인들의 현실인식을 대표한다고 할 수 있는 오경무의 비판인식이 갖고 있는 이와 같이 내재적이고 즉자적인 성격은 앞서 규정한 바와 같은 의미에서의 근대적인 요소를 갖고 있다고 보기 어려울 것이다.
단순 P C교의 지점부 연결에 의한 연속 P C교화에 관한 연구
남문희,이관희 慶尙大學校生産技術硏究所 1995 生産技術硏究所論文集 Vol.11 No.-
This paper is the study on continuous prestressed concrete bridge by connecting the node of simple prestress concrete bridge. The purpose of the study is the review of reduced positive bending moment at center of beam, negative bending moment at the node and size of connecting concrete. From this research, we found that positive and negative bending moment depend on the size of connecting concrete which decide the sectional area of reinforcing bar.
에폭시 수지 복합재료의 트래킹열화에 미치는 충전제와 자외선의 영향
박용관,조한구,김희곤 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.1
This paper studies on the effect of ultraviolet light and filler on the tracking characteristics of epoxy resin which is widely used to enhance the insulation capability of materials. The specimens employed in the study were bisphenol and cycloaliphatic epoxy resins filled with Si0_2. A low-pressure mercury lamp was used as the source of UV light. In order to see the phenomena of tracking of the specimen, the expoerimentation is performed to the tracking apparatus(IEC, Publication 587) which mainly used under severe ambient conditions.
퍼지 이론을 이용한 다 개체 지능형 시스템의 동기화 제어기 설계 및 구현에 관한 연구
文熙根,金永卓,金秀貞,金寬衡,李尙培 한국해양대학교 산업기술연구소 2003 연구논문집 Vol.20 No.-
이 논문의 주제는 시스템의 두 DC 모터의 동기화를 위한 효과적인 PWM 듀티비 조절이다. 퍼지 제어기는 많은 불확실하고 복잡한 산업 공정에 성공적으로 적용되어왔다. 그래서 만약 목표지점의 길이가 다르다면 속도 조절을 위한 PWM 듀티비 조절을 위해 언어적인 퍼지 규칙을 이용한 퍼지 제어기를 적용했다. 그리고 미지의 플랜트를 위한 퍼지 제어기법을 이용한 미지의 변환 함수 시스템을 연구했다. 이 제어기는 시스템 동기화를 위한 PWM 듀티비 제어에 성공적으로 적용되어지고 있다. The subject of this paper is to control efficient PWM duty for two DC motor synchronousness in the system. Fuzzy controller have been successfully applied to many uncertain and complex industrial plant. So, It adapted fuzzy controller using compositional fuzzy rule so that change PWM duty for speed control if the length of destination is different. And for unknow plant, it is the study to make the unknow transfer function system with fuzzy control method. This controller has been successfully applied to PWM duty control for the system synchronousness.