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Cross-Sectional Tests of Multifactor CCAPMs using Conditional Moments and Time-Series Restrictions
김진용 한국증권학회 2009 Asia-Pacific Journal of Financial Studies Vol.38 No.5
Two different methods are used to evaluate the performance of the consumption-based asset pricing models to explain the cross-section of expected stock returns in conditional moments: one is to scale the returns, and the other is to model time-varying factor loadings, using instrument variables. Max-imum correlation portfolios are constructed to directly impose restrictions on the time-series inter-cepts, especially in a model whose factors are not returns. The empirical results are as follow: the consumption-based models perform no better than the standard CAPM; adding the return on human capital as an additional risk factor does not help explain the cross-section; and the Fama-French three-factor model shows the best ability to lower the pricing error.
소비자 안전을 위한 제조물 책임 대응시스템에 관한 실증적 연구
김진용,오병완,Kim Jin Yong,Oh Byeong Wan 대한안전경영과학회 2004 대한안전경영과학회지 Vol.6 No.3
Product liability is the law of the manufacturer's responsibilities for the consumers' personal injuries or the losses of property resulted from defective products. In today's many countries, the product liability law are being enacted because of the safety of product use and the protection of consumer's right. In korea, the product liability is going to enforce on July 1, 2002. Though the construction of product liability response system is urgent situation, domestic manufacture company's PL response system is not nearly prepared in present. Consequently, the purpose of this study is to discuss the Quality Management's importance and the PL countermeasures by presenting the difference of PL response system construction degree by the Quality Management Maturity degree
자동차 정면 충돌사고에서 안전벨트에 의한 복부 대동맥 손상 1예
김진용,김상철,이강현,이재완,김익희,원근수,백광제 대한응급의학회 2013 大韓應急醫學會誌 Vol.24 No.3
In traffic accidents, wearing a seatbelt can cause abdominal aortic injury due to an abrupt deceleration. We report a case of abdominal aorta dissection caused by a seat belt in a frontal motor vehicle collision. The initial symptoms and signs were vague or uncertain. However, he complained severe abdominal pain with seat belt sign below the umbilicus. Abdominal computed tomography scans showed an initial flap of the abdominal aorta with hematoma and hazy stranding of the mesentery.
메티실린 내성 황색포도알균 주사부위 감염 후 발생한 척추추간판염 1예
김진용,김현옥,고광일,김영생,김길현,김수연,박윤수,서일혜,조용균 대한감염학회 2007 Infection and Chemotherapy Vol.39 No.6
Infections of the intervertebral disc and adjacent vertebrae may present with spondylitis, discitis and spondylodiscitis and are hematogenous origin in most cases. Potential sources of hematogenous infection are skin and soft tissue infection, genitourinary tract infection, infective endocarditis, intravenous drug abuse, respiratory tract infection and infected intravenous injection site. We have experienced a case of pyogenic spondylitis caused by methicillin-resistant Staphylococcus aureus (MRSA) bacteremia with peripheral injection site infection. He was successfully treated with surgical debridement and antibiotics. 본 증례는 약물남용자가 아닌 환자에서 MRSA에 의한 말초주사부위 감염 후 발생한 화농성 척추추간판염의 첫 보고이다. 최근 MRSA에 의한 원내감염이 증가하고 있는 현실에 비추어 볼 때 말초주사부위 감염 후 MRSA에 의한 화농성 척추추간판염의 발생을 고려하여야 한다.
A Simple Dual-Antenna Diversity Gain Measurement System at 2.4GHz
김진용,정경호,김문일,호요철 한국전기전자학회 2009 전기전자학회논문지 Vol.13 No.2
A simple measurement system is built to estimate the dual-antenna diversity gain at 2.4GHz easily in open lab environment. To obtain multipath fading propagation channel, the system consists of two transmission horn that placed on opposite direction and a rotating stage mechanically changing the position of test dual-antenna with time over distance greater than one wavelength. Estimated diversity is nearly same as theoretical value such that measured diversity gain of 30mm separated is about 6dB similar to theoretical value of 5.7dB and increases monotonically with the increasing separation distance as predicted by the theory. Proposed measurement system that is simple enough to fit in a small space can evaluate the performance of various dual-antennas with a reasonable accuracy with lower 5% difference between the ten sets of measured waveform distribution and theoretical Rayleigh cumulative distribution.