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임베디드 장치용 사용자 인터페이스 라이브러리 설계 및 개발
김시관,홍상렬,박형순 금오공과대학교 2006 論文集 Vol.27 No.-
임베디드 시스템 장치에서 사용자에게 정보를 제공하고 사용자의 입력을 받기 위한 언터페이스의 중요성은 인터넷의 발전 및 휴대 전화 PDA 등과 같은 개인 정보 접속 장치의 대중화로 점차 커져가고 있다. 개인 정보 접속 장치뿐만 아니라 산업 현장에서 사용되고 있는 임베디드 시스템에서도 장치 제어 및 감시에 사용될 GUI의 요구 증가는 계속 되고 있다. 하지만 임베디드 장치의 제어 및 감시를 위한 GUI 라이브러리의 개발은 아직 미비한 실정이다. 따라서 임베디드 시스템 장치를 제어하고 감시하기 위한 기존의 GUI 라이브러리 보다 더 발전된 Gill 라이브러리를 설계하고 개발하였다. 그리고 새로운 GUI 리아브러리를 이용한 데모 프로그램을 작성하였다.
박성천,오창열,김동렬 東新大學校 工業技術硏究所 2004 工業技術硏究 Vol.10 No.-
This research overcomes limitation of physical model using storage function method that is used in flood routing method of flood forecasting-warning system of 5 basic principle basin of our country. We also developed a nonlinear-model of rainfall-runoff process using artificial neural networks (ANNs) that do not consider to hydrology structure of basin. The results show that the ANN_SA_9 selected in the present study generally well-performed the one-step ahead prediction of runoff in the study area, the Sunam station. Also, base on ANN_SA_9 which have the value of R2 more than 0.95 developed in this search, we can have a higher reliability to operate and manage the water resources and rivers plan more efficiently in the future.
기성 콘크리트 파일 두부정리를 위한 자동화 장비의 개발
이정호,김정렬,김영석,조문영,김성근 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2
During the last few years, the use of prefabricated concrete pile has been gradually increased in many construction sites. Cutting work of the concrete pile is an important task to crush a part of pile head which is compressed with more than 800㎏/㎠, It is usually performed by a crusher and three to four skilled workers. Recent analysis results of the pile cutting work reveal that it frequently makes a lot of cracks which significantly reduce the strength of the pile and is labor-intensive work. The primary objective of this study is to propose conceptual designs for developing an automated pile cutting machine. It is anticipated that the development of the automated pile cutting machine would be able to bring improvements in safety, productivity, quality as well as cost saving.
雙補丸이 卵巢摘出로 骨多孔症을 誘發한 흰쥐에 미치는 영향
朴鍾元,崔相淳,金哲源,朴炳烈 한국전통의학연구소 2000 한국전통의학지 Vol.10 No.1
Aging is characterized by an age-dependent reduction in bone density. Pronounced bone loss by postmenopausal estrogen deficiency induces a bad effect on dynamic balance of bone metabolism. The purpose of this study is to examine what are the effects of the Ssangbohwan(SBH) on the ovariectomized rat model of postmenopausal osteoporosis. The results were summarized as follows : 1. Body weight in control group showed significant increase in comparison with sham, but that in SBH-treated showed no change in comparison with control. 2. The level of serum albumin in control group showed significant decrease in comparison with sham. That in SBH-treated was slightly decreased in comparison with control, which showed no efficacy. 3. The level of serum ALP activity in control group showed significant increase in comparison with sham, but that in SBH-treated was slightly decreased in comparison with control, which showed no efficacy. 4. The level of serum phosphorous in control group showed significant increase in comparison with sham, but that in SBH-treated showed no change in comparison with control. 5. The level of serum calcium in control group showed no change in comparison with sham, but that in SBH-treated was significantly decreased in comparison with control. 6. The level of serum T3 in control group showed no change in comparison with sham, but that SBH-treated showed significant decrease in comparison with control. 7. The level of serum T4 in control group showed significant increase in comparison with sham, and that in SBH-treated showed significant decrease in comparison with control. 8. Trabecular tibia strength in control group showed significant decrease in comparison with sham, but that in SBH-treated was slightly imcreased in comparison with control, which showed no efficacy. According to the above these results, SBH has shown to be capable of preventing and curing osteoporosis caused by old-aged and postmenopause
장경수,신호진,이상호,김병기,신동렬 成均館大學校 科學技術硏究所 2000 論文集 Vol.51 No.2
Queueing analysis, in general., has the intrinsic problem of large state space dimension and complex computation. In fact, the petri net is a graphical and mathematical model. It has been used for the modeling of various applications, in particular, manufacturing systems. It can deal with parallelism, concurrence, deadlock avoidance, and asynchronism. Currently it has been applied to the performance of computer networks and protocol verifications. This paper presents a technique for modeling and analyzing queueing model using stochastic activity networks (SANs). And then some examples are showed for the verification of the technique presented in this paper.
신석재,강현춘,안형환,강안수,김용렬,한성만,이한섭 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-
In the electrodeposition of copper foil for preparing printed circuit boards, a little amount of gelatin as a addition agent has been used for the better characteristics of a coat of electroplating. Gelatin modifies the physical properties such as mechanical strength, matte-side roughness, ultimate tensile strength(U.T.S), and elongation of copper foil, furthermore gelatin have influence on the structure of electrodeposits and the cathode polarization. The electrolyte used was of a composition; CuSO₄·5H₂O 300g/ℓ, H₂SO₄ 100g/ℓ, NaCl 10 ppm as a brightner, and was gelatin 0-7 ppm as a addition agent. Current density was 50 A/dm², and the temperature of electrolytic bath was 50 to 52 ℃. Experiments showed that the optimum gelatin concentration was 5 ppm with the consideration of the numbers of electrodeposited nuclei. And the nuclei numbers was sharply increased under 5 ppm, but was almostly constant above 5ppm. Average matte-side roughness by Surfcorder was gradually increased with the increasing gelatine concentration up to 2 ppm, and maximum roughness was observed at 2ppm. The roughness showed gradual decrease within the concentration range of 2 to 4 ppm, and was almost constant above 4ppm . Within the gelatine concentration range of 0 to 7 ppm, as the concentration increased, UTS was increased and elongation was decreased logarithmically. Also, in comparison between UTS and elongation, gelatin was identified as an addition agent acting inversely.