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Tae‑Woon Hong,Sang‑In Lee,Jae‑Hyeok Shim,Myoung‑Gyu Lee,Joonho Lee,Byoungchul Hwang 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.10
An artificial neural network (ANN) model was developed to predict the tensile properties as a function of alloying elementand microstructural factor of ferrite-pearlite steels. The input parameters of the model were composed of alloying elements(Mn, Si, Al, Nb, Ti, and V) and microstructural factors (pearlite fraction, ferrite grain size, interlamellar spacing, and cementitethickness), while the output parameters of the model were yield strength and tensile strength. Although the ferrite-pearlitesteels have complex relationships among the alloying elements, microstructural factors, and tensile properties, the ANNmodel predictions were found to be more accurate with experimental results than the existing equation model. In the presentstudy the individual effect of input parameters on the tensile properties was quantitatively estimated with the help of theaverage index of the relative importance for alloying elements as well as microstructural factors. The ANN model attemptedfrom the metallurgical points of view is expected to be useful for designing new steels having required mechanical properties.
이태순,김은영,윤성수,리신호 忠北大學校 農業科學硏究所 2012 農業科學硏究 Vol.28 No.2
The MYEONGSIM village located in Baekkok-myeon, Jincheon-gun, Chungcheongbuk-do, Korea has been developed the green tourism, farm stay and green rural experience project. Although the village has more varius advavtages such as gacilities and experience program than the other villages its tourists are gradually decreasing. In this thesis, specific development direction of the village will be proposed by the analysis of characteristics of tourists and SWOT analysis through understanding of characteristics of visitors and investigation of rural amenith resources
최종운, 유태환, 김수균, 안성옥 배재대학교 공학연구소 2014 공학논문집 Vol.16 No.1
본 논문은 Unity3D 게임엔진을 이용하여 쉽게 접할 수 있는 아케이드 형식의 미니게임을 제작하는데 목적이 있다. 우리는 미니 게임을 통하여 창의력, 반사 신경을 향상시키도록 하였고, 또한 일상생활에서 볼 수 있는 애완동물이라는 소재를 사용하여, 게임에 접근하기 어려운 사람들에게 친근감을 주게 하는 것을 특징으로 한다. 또한 랭킹 시스템을 도입하여 유저들에게 경쟁을 유도하게 하여 유저들의 게임 참가율을 증대하도록 하였다. 본 논문에서는 Unity3D 엔진을 이용하여, 게임의 개발시간을 단축하여 개발 비용을 줄일 수 있으면서도 게임의 질은 떨어지지 않도록 하였다
최태운 경성대학교 공학기술연구소 1998 공학기술연구지 Vol.5 No.-
The addition of CaCO₃increase the binding force on the SiO₂particles at 1300℃, due to the melting of the CaCO₃particles. This can prevent the sands from the dislocation, thus it could result in minimizing defects density. In addition, the 5.0 wt.% content of CaCO₃showed the effective results with the pore density of 15%.
김태운 경성대학교 공학기술연구소 2000 공학기술연구지 Vol.7 No.-
This paper presents a framework for designing information system based on the Unified Modeling Language(UML) which is accepted as an industry standard for object oriented analysis and design. In order to remain competitive in the rapidly changing environment and in the Internet age, the requirements of information system are changing frequently. The characteristics of compoment-based, software reuse, inheritance, and encapsulation can be the best solution for the industrys needs. This paper demonstrates the UML technology for designing a new business process in the manufacturing company of athletic shoes.
최태운,김돈,이세종 慶星大學校 1991 論文集 Vol.12 No.3
We supposed that doping effect of KCIO�on YBaCuO mainly comes from ?? ion. Potassium was vaporized during the sintering process and oxygen in KCIO� did not improved the superconductivity. Doping effect was investigated with XDR, iodometric titration, resistivity measurement and SEM. Due to the formation of non-superconducting phase between superconducting grains, and interruption of superconducting path by ?? superconducting transition temperature was decreased from 94K to 90K.
손운목,장태식 인제대학교 1991 仁濟醫學 Vol.12 No.1
간흡충을 횐쥐에 실험 감염시킨 후 2일, 2주 및 5주에 여러가지 용량의 알벤다졸을 투여하여 충체의 각 발육단계 및 약제용량에 따른 살충 효과를 검토하고자 하였다. 감염 후 2일, 2주, 5주의 발육 단계별 살충율은 각각 26.2∼47.6(평균 39.3) %, 21.4∼54.8(평균 32.2) %,84.3-100(평균 91)%로, 유약충에 비해 성충에 대한 살충율이 높았다. 동일 치료군 내에서는 약제 투여량 및 방법에 따라 살충율의 차이가 뚜렷하지 않았고, 각 치료군 공통으로 2×200mg 용량에서 가장 높은 살충율을 나타내었다. 완전한 살충은 감염 5주 후 치료군의 2×200mg 투약군에서만 이루어졌다. This study was performed to evaluate the chemotherapeutic effects of albendazole against the larvae, juveniles and adults of Clonorchis sinensis. The metacercariae were obtained from Pseudorasbora parva by the pepsin digestion method, and 70 rats(Sprague-Dawley strain) were fed each with 50 metacercariae. On 60 rats various dosages of albendazole(2×2mg, 2×50mg, 200mg, 2×100mg, 2×200mg) were given at 2 days, 2 weeks and 5 weeks after infection while remaining 10 rats were kept untreated for use as control. The drug-treated rats and untreated control were sacrificed at 6 weeks after infection for the recovery of worms. The cure rates(lethal rates) obtained from worm recovery rates were used as the decision base of drug effects. Followings are summarized results. 1.The recovery rate of C. sinensis in control group was in the range from 60% to 100%, with overall average value of 84%. 2.The mean recovery rates of worms in treated groups are presented in the following Table. ◁표 삽입▷ (원문을 참조하세요) 3.The cure rates(lethal rates) of the groups treated at 2 days, 2 weeks and 5 weeks after infection were 26.2-47.6%(39.3% in average), 21.4-54.8%(32.3% in average) and 84.3-100%(91% in average) respectively. From the above results, it was confirmed that albendazole treatment is very effective against the adult worms of C. sinensis, however it is less effective on larvae and juvenile worms.
유동상 Media를 이용한 기존하수처리장의 Retrofitting 가능성 평가
고태호,박운지,이찬기 江原大學校 産業技術硏究所 2005 産業技術硏究 Vol.25 No.A
In this study, as MBBR(Moving Bed Biofilm Reactor) process using waste tire media is suggested for retrofitting with advanced wastewater treatment and the removal property of organic matter and nutrient and the capacity of media are evaluated through long-term operation with pilot plant following seasons, the application capacity of retrofitting with MBBR process to a existing wastewater treatment is studied. As a result of the long-term operation of the process, it is proved that there is no loss and abrasion of media, and also that it is possible to secure the sufficient attached bio-mass. The values of organic matter and nutrient in effluent are suitable for the strict discharged water quality standards in every season including winter.