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1년간 운동참여가 비만아동들의 신체구성과 체력에 미치는 영향
강창훈(Chang Hun Kang),구광수(Kwang Soo Koo),홍예주(Ye Ju Hong),이준호(Jun Ho Lee) 한국발육발달학회 2012 한국발육발달학회지 Vol.20 No.2
The purpose of this study was to find out the influence of one-year exercise on the body composition and the physical strength of obese children. In order to this study, 74 students were selected obese children with more than 25% of body fat percentage from the 1st to 6th grades of the elementary school in order to examine their changes of the body composition(height, weight, and body fat percentage) and the physical strength (cardio-respiratory endurance, muscular strength, and muscle endurance). The following conclusion was drawn from the study results: First, height and weight, cardio-respiratory endurance had been increased throughout all the measuring periods (1st, 2nd, and 3rd-1st as base period) after exercise. second, body fat percentage had been decreased for all the measuring periods (1st, 2nd, and 3rd-1st as base period) after exercise. Third, muscular strength and flexibility had been increased for the 2nd to the 3rd periods and the 1st to the 3rd periods, but there had been no change in the 1st to the 2nd periods, after exercise. Fourth, muscle endurance had been increased for the 1st to the 2nd periods and the 1st to the 3rd periods, while no change in the 2nd to the 3rd periods, after exercise. With putting all the results together, it had been discovered that the one-year exercise could have an effect on the body composition of obese children, and their physical strength had been improved. In other words, the long period exercise has the strong influence on the desirable development of growing children and the effect on the physical fitness for health as the foundation to lead active lifestyle of their own.
윤형득(Youn Hyeong Duk),강창훈(Kang Chang Hun),길동욱(Gil Dong Uk) 한국전자통신학회 2006 한국전자통신학회 논문지 Vol.1 No.1
현재 우리나라의 해양․수산․해운분야의 종합정보통신망의 구축이 필요한 이유는 해양의 중요성과 관련 종사자 및 어민에 대한 기초정보 제시와 함께 연구 인프라 구축과 관련하여 국민들에게 자료를 제공하며, 이를 위하여 해양․수산 및 해운의 각 분야에 분산된 연구정보와 기타 관련 정보들을 수집․분석한 뒤 DB화하여, 체계적인 정보 유통체제를 구축하고 해양정보 취합을 위한 원격자료 통합관리시스템을 운영함으로써 국내외 대학, 연구기관 및 기업체를 연계하고 활발한 정보의 공유화 교류를 통하여 우리나라의 해양, 수산의 발전뿐만 아니라 국가 경쟁력 강화에 이바지 할 수 있도록 연구하고자 한다. Our country has been surrounded an advantageous around condition by sea on three sides. But the development into the sea, for a lack of systematic database on the marine total information network for a foundation information and reseach infra construction. This marine total information network will be not contribute to an advance of domestic marine industry through information`s common ownership but also international competitiveness strength.
Turbine Impeller 형상이 유동특성에 미치는 영향에 관한 연구
전언찬(Eon-chan Jeon),윤기호(Gi-Ho Youn),강창훈(Chang-Hun Kang) 한국기계가공학회 2014 한국기계가공학회지 Vol.13 No.4
Recently, research has been conducted to develop the ORC (organic Rankine cycle), to recover waste heat from facilities such as industrial plants ultimately to create mechanical or electrical energy. The ORC system consists of a heat exchange, a condenser, a pump and a boiler. In this paper, 84 flow analyses were conducted with 21 cases and three variables, i.e., a number of large wings, a number of small wings, and RPMs. R245fa was used as a refrigerant. The flow cavitation phenomenon was investigated through a flow analysis, and a flow stream analysis was conducted.
항공 응용 분야 : Dynamic Pattern 기법을 이용한 주문형 반도체 결함 검출에 관한 연구
심우제 ( Woo Che Shim ),정해성 ( Hae Sung Jung ),강창훈 ( Chang Hun Kang ),지민석 ( Min Seok Jie ),안동만 ( Gyo Young Hong ),홍교영 ( Dong Man Ahn ),홍승범 ( Seung Beom Hong ) 한국항행학회 2013 韓國航行學會論文誌 Vol.17 No.5
본 논문에서는 일반적으로 사용되고 있는 개발 및 분석용 프로그램을 이용하여 시험요구서가 개발되지 않은 ASIC을 대상으로 결함을 검출하는 방법을 제안한다. 시험요구서가 없는 경우, 회로의 동작을 파악하기 힘들어 어떤 칩에서 결함이 발생하였는지 발견하기 어렵다. 따라서 ASIC의 로직 데이터를 분석하여 결함 검출을 위한 시험요구서를 작성하고, 시험요구서에 따라 제작된 Dynamic Pattern 신호를 이용하여 게이트 레벨에서 입출력 핀 신호 제어를 통해 고장진단을 한다. 실험결과 제안된 기법을 비메모리 회로에 적용하여 우수한 결함 검출 능력을 확인하였다. In this paper, it is proposed the fault detection method of the ASIC, without the Test Requirement Document(TRD), extracting internal logic circuit and analyzed the function of the ASIC using the multipurpose development program and simulation. If there don`t have the TRD, it is impossible to analyze the operation of the circuit and find out the fault detection in any chip. Therefore, we make the TRD based on the analyzed logic data of the ASIC, and diagnose of the ASIC circuit at the gate level through the signal control of I/O pins using the Dynamic Pattern signal. According to the experimental results of the proposed method, we is confirmed the good performance of the fault detection capabilities which applied to the non-memory circuit.