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장태진(Jang Tae Jin),이창석(Lee Chang Suck) 한국부동산학회 2006 不動産學報 Vol.28 No.-
1. CONTENTS<BR> (1) RESEARCH OBJECTIVES<BR> The purposes of the study are to review the real estate policies that have been implemented since 2002 and to investigate the validation of the policies in terms of price change. At the same time, the study aims to report and suggest the right directions for real state policies by analyzing the effects of these real estate policies on the real estate investment.<BR> (2) RESEARCH METHOD<BR> Frequency Analysis, chi-square analysis<BR> (3) RESEARCH RESULTS<BR> We investigated recognition of real estate invstment and real estate price, real estate policies. In result, (1) the residents did not want to invest in real estate for a while.<BR> (2) The government"s policies for real estate were considered to be the factors that influenced on the real estate price. (3) As the methods to stabilize the real estate price, the expansion in the supply of houses through continuous development of new cities or construction of new towns.<BR> 2. RESULTS<BR> To stabilize the real estate market, government"s consistent, unchanging policy and the expansion of the supply of houses through continuous development of new cities or construction of new towns seem to be necessary.
탄소섬유 혼입 5%에 따른 SIFRCC의 전자파 차폐성능
장태진(Jang, Taejin),김기현(Kim, Gihyun),정해국(Jung, Haekook),김승원(Kim, Seungwon),박철우(Park, Cheolwoo) 한국콘크리트학회 2021 한국콘크리트학회 학술대회 논문집 Vol.33 No.2
이 연구는 전자파 차폐 성능을 확보를 위한 연구의 일환으로, 슬러리 충전 강섬유보강 시멘트 복합체(slurry infiltrated fiber reinforced cementitious composite, SIFRCC)의 전자파 차폐 성능 향상을 목적으로 탄소섬유 혼입에 따른 전자파 차폐 성능을 분석하였다. 실험결과 탄소섬유 혼입 5%의 전자파 차폐 성능은 1GHz 기준 69dB 수준으로 탄소섬유 혼입하지 않은 SIFRCC 보다 19dB 증가하는 것으로 분석되었다. This study analyzed the electromagnetic shielding performance of slurry infiltrated fiber reinforced cementitious composite (SIFRCC) with mixed milled carbon fiber. It was analyzed that the electromagnetic wave shielding performance of SIFRCC without milled carbon fiber was 69dB at 1GH and that the shielding performance was increased by 19dB with 5% addition of milled carbon fibers.
앉은 자세에서 불안정한 접촉면을 이용한 어깨뼈 내밈 운동이 위 그리고 아래 앞톱니근 활성화에 미치는 영향
장태진(Tae-Jin Jang),황병훈(Byeong-Hun Hwang),전인철(In-Cheol Jeon) 한국전문물리치료학회 2021 한국전문물리치료학회지 Vol.28 No.3
Background: The scapulo-thoracic musculatures including serratus anterior (SA), upper tra-pezius and lower trapezius can provide shoulder stability and functional shoulder movement. Objects: The muscle activities of upper and lower SA were compared during three different scapular protraction exercises in healthy individuals in sitting position. Methods: Twenty-five healthy subjects were participated. Electromyography device was used to measure muscle activity of upper and lower SA and trapezius muscles. Each subject was asked to perform three different scapular protraction exercises (scapular protraction [SP], SP with self-resistance [SPSR], SPSR with hand-exerciser [SPSRH]) in random order. One-way re-peated measures analysis of the variance and a Bonferroni post hoc test were used. Results: The muscle activity of lower SA muscle was significantly different among three con-ditions (SP vs. SPSR vs. SPSRH) (p < 0.01). The lower SA muscle activity was significantly greater during SPSRH compared to SP and SPSR, which required joint stability more than SP and SPSR (p < 0.01). Conclusion: SPSRH exercise can be recommended to facilitate the muscle activity of lower SA. In addition, the intramuscular variation in the upper and lower SA during scapular protrac-tion exercise is required to consider the effective rehabilitation.