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범성우,정영한,박태근 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1
After the 1980' s governmental housing business policy was vigorously attained, demand of apartment housing is still on the increase, but systematic maintenance is not following this current incerase trend. A promotion about the realization on the importance of maintenance due to life-time degradation of apartment housing and a plan of life-long practice of maintenance established together with longterm stratergy for maintance upkeep must be imperative. Purpose of this study presents application plan about FCI from rifle cycle viewpoint of building. Expect that is used laying plan that is middle part of a song miracle in actuality and expense arbor in the mountains of longtimer line plan of apartment house. As administration subject establishes well-timed repair time and more strategic budget, may behave better maintenance.
Sang‑Wook Kim,Hyeon‑Woo Son,Taek‑Kyun Jung,Young‑Bum Chun,Yi‑Hyun Park,Ji‑Woon Lee,Soong‑Keun Hyun 대한금속·재료학회 2019 METALS AND MATERIALS International Vol.25 No.4
The hot deformation behavior of advanced reduced-activation alloy (ARAA) was investigated using hot torsion tests. Thefl ow stress decreased as deformation temperature increased and as strain rate decreased. The fl ow behavior demonstratedthe typical dynamic recrystallization (DRX). Based on the constitutive analysis of peak stress, the activation energy for hotdeformation was found to be 330.3 kJ mol −1 . Peak stress was analyzed as a function of the Zener–Hollomon parameter, andcalculated and experimental values were in good agreement. A DRX kinetic model for ARAA was derived with deformationconditions based on the Avrami-type model. It was confi rmed that the volume fraction of dynamically recrystallized grainsincreased as deformation temperature increased and as strain rate decreased. The necklace structure and grain boundarybulging were observed in the deformed microstructure of ARAA. The suggested DRX mechanism for ARAA during hotworking is discontinuous DRX.
테니스 포핸드 스트로크 시 왼팔의 이용 유무가 스트로크의 정확성에 미치는 영향
우상연,최성범,김호묵 순천향대학교 기초과학연구소 2011 순천향자연과학연구 논문집 Vol.17 No.1
The purpose of this study is to analyze and compare accuracy and kinematic characteristics of forehand strokes upon using the left-hand and non the using left hand in tennis. Six unskilled collegiate players who complied primary tennis course participated in this study. Subjects were requested to hit 10 balls with 4 types each: first, it was two directions(down the line, cross), second, it was two velocities(slow ball, fast ball) and then it was type of using left hand. Variables such as accuracy, time, distance, angle and velocity variables were measured by USPTA method and video cameras. The results of this study are as follows: 1) accuracy of hitting balls was not different according to the type of using left hand. While there was an interaction between ball velocity and hitting direction. 2) impact positions of hitting ball were not different according to the type of using left hand. While impact positions were done near by target direction in cross direction then down the line direction. 3) shoulder rotation angle was not different according to the type of using left hand. While shoulder rotation angle was grater in down the line direction than cross direction. 4) the maximum velocity of racket head was faster in using left hand than non using left hand.
주성범 남서울대학교 출판국 2014 남서울대학교 논문집 Vol.20 No.1-2
This study in intended to evaluate and analyze with the qualification training course of sport & exercise leader for elder. The course is provided to 45 persons engaged in jobs relating to the improvement in elders' health. And 100-hour theoretical and practical qualification training course had progressed for 10 weeks. After that time, a survey was conducted for the evaluation and value analysis of qualification training course. It was possible to know the positive evaluation and high satisfaction of this qualification training course of sport & exercise for elder through whether the course was completed, whether the certificate was obtained, whether other people would be invited to participate and whether they would participate in the intensive course. Besides, it was possible to check information about a program preferred by participants.
이상범,이준환 단국대학교 1997 論文集 Vol.31 No.-
The address area of the envelopes varies from the one written correctly to another scribbled. So there happen lots of difficulties when separating characters by assuming the average character width and height compared to the case of printed characters. In this paper, as a preprocessing method for handwritten address recognition. a new structured method is proposed on the scheme of separating characters. The slope-compensated image is divided as the more detailed block images by reprojection and the hooks which generally exist up and down on handwritten characters are removed with the use of the statistical characteristics of horizontal distribution of pixels. The blocks generated by projection and slope compensation are merged as the form where one character string or separated consonants or vowels don't exist. The merged blocks enables the structural character separation not affected by the writing styles of writers by taking advantage of the edge points extracted which are based on the five base lines and three preliminary separation point proposed in this paper.
이상학,손범목 한국환경과학회 2003 한국환경과학회지 Vol.12 No.1
Synchronous spectrofluorimetry was carried out for the simultaneous determination of various polycyclic aromatic hydrocarbons(PAHs) in aqueous solution by fluorescence spectrometry have been studied. The optimal wavelength interval(Δλ) for synchronous spectra of acenaphthene, anthracene, benzo[a]anthracene, fluorene and pyrene were investigated in the presence of surfactants. The great enhancement of the fluorescence of these PAHs in Triton X-100 was obtained and optimal wavelength was 50 nm. The calibration curves in synthetic mixture solution of 5 PAHs were linear over the range from 1.0x10^-8M to 1.0x10^-4M. Under the optimal experimental conditions, the detection limits were 4.9x10^-9M, 7.0x10^-9M, 4.7x10^-9M, 1.6x10^-9M and 3.2x10^-9M for acenaphthene, anthracene, benzo[a]anthracene, fluorene and pyrene, respectively.