화영지통탕(和營止痛湯)의 혈관신생억제효과(血管新生抑制效果)에 관한 실험적(實驗的) 연구(硏究)

김인석,박준혁,강희,김성훈,유영법,심범상,최승훈,안규석,Kim, In-Seok,Park, Joon-Hyuck,Kang, Hee,Kim, Sung-Hoon,Yu, Young-Beob,Shim, Bum-Sang,Choi, Seung-Hoon,Ahn, Koo-Seok 대한암한의학회 2001 大韓癌韓醫學會誌 Vol.7 No.1

The purpose of this study is to prove the angiogenesis effects of WhaYoungJiTongTang (hereinafter referred to as the 'WYJTT'). For the study, by utilizing liver cancer cell line; SK-HEP-1, lung cancer cell line: A549, stomach cancer cell line: AGS and bovine capillary endothelial cell: BCE, the effects of the WYJTT on toxicity and proliferation ability of cells and the effects on anti-angiogenesis of bovine capillary endothelial cell and of mice's aorta were studied. 1. Cell viability assay In comparison with the control group, when $100{\mu}g/ml$ of WYJTT was injected, the viability was reduced in SK-Hep-1, $400{\mu}g/ml$ in A549 and $200{\mu}g/ml$ in AGS. 2. Cell proliferation assay In comparison with the control group, when $600{\mu}g/ml$ of WYITT was injected, DNA synthesis was reduced to 35.1% in the SK-Hep-1, 56.0% in A549, and 25.8% in BCE (bovine capillary endothelial cell); and when $400{\mu}g/ml$ was injected, DNA synthesis was reduced to 12.1 in AGS. 3. Tube formation assay In the event that BCE is injected with WYJTT in each of its content gradient, the anti-angiogenesis was effective in amounts of $400{\mu}g/ml$ with 6 hours of the treatment. 4. Aortic ring assay In comparison with the control group, the angiogenesis was restricted to the remarkable degree in amount of $200{\mu}g/ml$: 10% in $400{\mu}g/ml$; and fully inhibited in each of $800{\mu}g/ml$ and $1600{\mu}g/ml$. As a result of the experiments mentioned above, WYJTT showed its anti-angiogenesis effects against cancer cell line.

영어말하기 교육과정 현황 및 운영에 관한 실태연구

김인석(Kim In Seok),김봉규(Kim Bong Gyu) 한국영어학학회 2017 영어학연구 Vol.23 No.1

The purpose of this study is to report on the current status for the English speaking curriculum and instruction in the Korean middle schools through the nation-wide online survey conducted to students, parents, and teachers. This study attempts to provide an in-depth analysis of schools’ reponses to the 9 survey question items on the English speaking curriculum in schools and those of students(1,372), teachers(1,584) and parents(1,294) on the English speaking instruction for improving its effectiveness. The results showed that various types of English programs were designed and implemented in order to enhance students’ motivations for learning English as a foreign language such as after-school programs, differentiated classroom instruction, multimedia based language teaching, and so on. It was revealed that a majority of all three groups favorably responded to items that asked their satisfaction about the school’s English speaking instruction. A number of methodological and environmental improvements affecting English language learning were called for, which ranged from improving teachers’ English teaching methodology, reducing the class size, developing the multifarious materials such as workbooks, digital contents for students and teachers, and to using interesting school text books. Based on the results of the study, pedagogical implications for improving the English speaking programs in school classrooms are suggested.

철근콘크리트와 강을 합성한 복합 단면보의 구조거동평가

김인석,김학수,Kim, In Seok,Kim, Hak Soo 한국강구조학회 2008 韓國鋼構造學會 論文集 Vol.20 No.5

최근 장대 건설 구조물에 사용이 증가되고 있는 합성형 구조물에서 나타나고 있는 예기치 못한 일부 균열 현상의 구조적 원인을 분석하기 위하여, 강재복부의 수직보강재, stud 및 dowel bar의 유무, 전단철근의 간격과 콘크리트 강도 등을 실험변수로 하여 4점 재하 휨시험을 통해 강재와 철근콘크리트간의 구조적 합성거동 효과를 분석 하였다. 실험결과, 수직보강재는 강재의 국부좌굴 방지와 파괴시 강재와 콘크리트의 부착파괴를 방지하여 구조적 합성거동에 따른 단면내력(파괴하중)의 증진에 효과적인 것으로 나타났으나, 추가적으로 설치한 stud 및 dowel bar, 콘크리트의 강도와 전단철근량 등은 합성보의 휨거동에 큰 영향을 주지 않는 것으로 나타났다. The composite structures of steel and reinforced concrete, which have been widely used in large-scale concrete structures, werestudied to investigate the cause of unexpected cracks and to verify the composite actions between the two materials. Vertical stiffeners between flanges, studs and dowel bars, stirrups, and concrete strength were chosen as experimental variables in afour-point loading test. The results showed that the vertical stiffener prevented not only the local web buckling, but also bond failures between steel and concrete. It increased the flexural resistance (fracture loads) due to the composite action of two materials, compared withthose of any experimental variable. However, the composite behavior of steel reinforced concrete beam was not affected seriously by additional studs, dowel bars, stirrups, and concrete strength.

단국대학교 천안캠퍼스 제3과학관

김인석,Kim, In-Seok 대한건축사협회 2004 建築士 Vol.2004 No.9

건축사 보수의 허와 실

김인석,Kim, In-Seok 대한건축사협회 1979 建築士 Vol.1979 No.6

회원작품 - 대한교원공제회 광주회관

김인석,Kim, In-Seok 대한건축사협회 1996 建築士 Vol.1996 No.11

야전운용자료를 활용한 항공무기체계의 RAM 목표값 비교분석

김인석(In Seok Kim),정원(Won Jung) 한국신뢰성학회 2015 신뢰성응용연구 Vol.15 No.4

Purpose : The purpose of this study is to compare the RAM (reliability, availability and maintainability) value in the acquisition phase with operational period for air weapon systems. The objective is to determine if the value of RAM is sufficient in the field, and look for any difference from the target value to some extent. Methods : For a case study, the ○○ training aircraft is selected. Data from the two acquisition sources are utilized. One is the operational data in domestic aircraft through research and development, and the other is the data from imported aircraft. The two different sources were collected independently and distinctly. Results : According to the analysis, the domestic aircraft shows high deviation in RAM value compare to the imported systems. This is due to the effort of continuous reliability improvement. In the aspect of maintainability, the result shows a slight deviation, and the availability meets the requirement. Conclusion : The results of this study can be used in finding a way that can be effectively applied to the sustainability in the weapon system. If the RAM performance is significantly lower than the target value, then it is necessary to improve the design activities so that they can achieve the RAM target value.

위 · 변조에 안전한 RFID 지급결제시스템

김인석(In Seok Kim),최은영(Eun Young Choi),이동훈(Dong Hoon Lee),임종인(Jong In Lim) 한국정보보호학회 2007 정보보호학회논문지 Vol.17 No.5

실생활에서 자동 인식 시스템은 바코드를 이용한 시스템이 대부분을 차지하며, 이러한 바코드 기반 자동 인식 시스템은 바코드의 인식거리에 대한 제한과 보안상의 문제점을 지적 받아왔다. 최근 바코드 기반 자동 인식 시스템보다 저장능력이 뛰어난 비접촉식 무선 주파수 인식(RFID: Radio Frequency Identification) 시스템이 주목을 받고 있으며 많은 연구가 이루어지고 있다. 특히 RFID 시스템은 물리적인 접촉없이 개체에 대한 정보를 인식한다는 점에서 화폐의 위·변조를 확인하는 매체로 사용가능하다. 본 논문에서는 RFID 시스템을 화폐에 적용하여 화폐의 위·변조 여부가 확인 가능한 지급결제시스템을 제안한다. 제안하는 지급결제시스템은 사용자의 프라이버시 침해의 문제를 해결하였으며, 추가적으로 위·변조 화폐의 사용자를 추적할 수 있는 기능을 제공한다. Barcodes have been widely used to implement automatic identification systems but there are various problems such as security weakness or distance restriction in scanning barcode signals in a barcode-based automatic identifcation systems. Recently researchers are gradually interested in radio frequency identification (RFID) and RFID systems have been applied to various fields than before. Especially one of RFID application fields, a bank system uses RFID tagged bankontes to prevent illegal transactions such as counterfeiting banknotes and money laundering. In this paper, we propose a RFID system for protecting location provacy of a banknote holder. In addition, our paper describes that a trust party can trace a counterfeit banknote holder to provide against emergencies.

인공지능형 대화형 챗봇 현황과 영어교육용 챗봇 개발 방안

김인석 ( In-seok Kim ),김봉규 ( Bong-gyu Kim ) 21세기영어영문학회 2020 영어영문학21 Vol.33 No.2

The purpose of this study is to explore the current state of interactive AI chatbot development, focusing on ICT based new technology trends, and suggest ways of applying this chatbot technology to develop English education chatbots. First, this study explains the major principles of AI-based interactive chatbot development in recent years. Second, it also presents the basic structure of the AI-based chatbot system and its application of intelligent learning processes in English language education. In addition, with the development of future technologies, interactive AI chatbots can be expected to be used in many fields such as personal assistant service, interactive commerce, and the entertainment industry. Especially, the chatbot system is expected to enhance learners’ foreign language competence and motivation in language education settings.

원격화상 영어수업 활용이 고등학생의 영어학습 만족도에 미치는 영향

김인석 ( In Seok Kim ),김봉규 ( Bong Gyu Kim ) 한국중등영어교육학회 2014 중등영어교육 Vol.7 No.1

The purpose of this research is to find out Korean primary school students’ attitudes toward cyber English learning via videoconferencing co-teaching by native teachers of English and English teachers of Korean. The research was carried out under the auspice of the Ministry of Education(MOE). 198 high school students from the experimental school designated by the MOE and 4,031 students from other high schools participated in this research. The results of analysis, which is based on survey questionnaires and interviews, show that students revealed positive attitudes towards cyber English learning. Based on the results of the questionnaire and interviews, the research suggests a number of useful practices which can be implemented to make the English language teaching in primary schools via videoconferencing more productive and effective. The research also suggests that there are a number of factors which shall be considered in conducting cyber English language teaching such as technical difficulties and the specific roles assigned to both Korean and native English teachers in Korean primary school settings.