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신준호,원유진,홍일민,Shin, Junho,Won, Eugene,Hong, Ilmin 한국자동차안전학회 2014 자동차안전학회지 Vol.6 No.2
Based on the analysis of the actual passenger vehicle fire cases for recent four years (2010~2013), the passenger vehicle fire is increasing annually. Main root cause was analyzed as an electric problem as a 39%. Vehicle fire case by electric problem was mainly caused by use of Non-genuine part. Vehicle fire case by mechanical problem was mainly caused by various oil system maintenance. Vehicle fire case by smoking material was mainly caused by cigarette and disposal lighter. And external fire transition issue and towing mistake fire cases was also confirmed.
신준호,김군수,박요섭,나백주,손석준,김병우,Shin, Jun-Ho,Kim, Gun-Su,Park, Yo-Sub,Na, Bek-Ju,Sohn, Seok-Joon,Kim, Byong-Woo 대한예방의학회 1995 Journal of Preventive Medicine and Public Health Vol.28 No.3
In order to investigate the prevalence and the factors related to the depression and burnout among private practice physicians, a SDS(self-rating depression scale) and MBI(Maslach burnout inventory) -based questionnaire study was performed on 344 private practice physicians in Kwangju and Chonnam area. The results were summarized as follows. 1. Mean SDS score was 38.3 in total subjects and the prevalence rate of depression was 48.8%. As for the frequency order of the items of the SDS, decreased libido, diurnal variation and hopelessness were relatively high, and suicidal rumination, constipation and agitation were noted low. 2. Noticeable factors related with depression were smoking, coffee use, sleeping time and satisfaction with income. 3. As a result a factor analysis with the MBI data, five factors named as emotional exhaustion, depersonalization, personal accomplishment, involvement and self-interest were extracted. Statistical analysis of the data demonstrated that 48.8% of the physician sample reported high scores on emotional exhaustion, and 45.3% scored high on depersonalization. Personal accomplishment scores remained high with 45.3% reporting high personal accomplishment. 4. Variables related to the burnout were age, sleeping time, family size religion, medical speciality, duration of practice setting, visiting patient number, closing day per month and job satisfaction. 5. In the relationship with depression, burnout was closely related to depression. Above results showed that the high percentage of private practice physicians experiencing depression and burnout suggests the need for further research to establish trends, to identify causal factors, and to develop avenues to reduce stress.
실시간 위치 추적 시스템을 위한 ESPRIT 기반의 초 분해능 지연 시간 추정 알고리즘
신준호(Joon-Ho Shin),박형래(Hyung-Rae Park),장은영(Eun-young Chang) 한국통신학회 2013 韓國通信學會論文誌 Vol.38 No.4C
본 논문에서는 실시간 위치 추적 시스템 (RTLS: real-time locating system)을 위한 ESPRIT 기반의 초 분해능 지연 시간 추정 (super-resolution time delay estimation) 알고리즘을 개발하고 여러 가지 다중 경로 환경에서 성능을 분석한다. 지연 시간 추정을 위한 기존의 코릴레이션 방식은 다중 경로들의 지연 시간의 차이가 한 칩 이내일 경우 성능이 급격히 저하되는 문제점이 있다. 이러한 문제를 해결하기 위해 대표적인 초 분해능 도래각 추정 알고리즘인 ESPRIT을 지연 시간 추정에 적용하여 주파수 영역 초 분해능 지연 시간 추정 알고리즘을 개발하고 여러 가지 다중 경로 환경에서 알고리즘의 성능을 분석한다. In this paper an ESPRIT-based super-resolution time delay estimation algorithm is developed for real-time locating system (RTLS) and its performance is analyzed in various multipath environments. The performance of the existing correlation method for time delay estimation seriously degrades in multipath environments where the relative time delays of multipath signals are less than a PN chip. To solve the problem we shall develop a frequency domain super-resolution time delay estimation algorithm using the ESPRIT, the most representative super-resolution direction-of-arrival (DOA) estimation algorithm, and analyze its performance in various multipath environments.
신준호(Joon-Ho Shin),명승일(Seung-Il Myong),장은영(Eun-young Chang),박형래(Hyung-Rae Park) 한국통신학회 2012 韓國通信學會論文誌 Vol.37 No.2A
본 논문에서는 대역 확산 (spread spectrum) 방식의 실시간 위치 추적 시스템 (RTLS: real-time locating system)을 위한 초 분해능 지연 시간 추정 (super-resolution time delay estimation) 알고리즘을 개발하고 다중경로 환경에서 성능을 분석한다. 기존의 코릴레이션 방식은 주변에 장애물이 없는 line-of-sight (LOS) 환경에서는 비교적 정확한 지연 시간 추정이 가능하나 지연 시간의 차이가 한 칩 이내인 근접 다중 경로 환경에서는 성능이 급격히 저하되는 문제점이 있다. 따라서 본 논문에서는 도래각 추정에 이용되는 MUSIC 알고리즘을 이용하여 근접 다중 경로 환경에서도 신호의 지연 시간을 추정할 수 있는 초 분해능 지연 시간 추정 알고리즘을 개발하고 이를 ISO/IEC 24730-2.1 RTLS 시스템에 적용하여 성능을 분석한다. In this paper a super-resolution time delay estimation algorithm is developed for real-time locating systems (RTLSs) that employ a direct-sequence spread spectrum technique, along with its performance analysis in multipath environments. The classical correlation method provides relatively good performance in line-of-sight (LOS) environments but its performance seriously degrades in multipath environments, especially when signals are spaced closer than a PN chip. Therefore we shall develop a super-resolution time delay estimation algorithm that may estimate the time delays of multipath signals even in closely spaced multipath environments using the MUSIC algorithm for direction-of-arrival estimation and analyze its performance by applying the algorithm to the ISO/IEC 24730-2.1 RTLS system.
글로벌 녹색건축표준설계기준 재료시공분야(KBC-MC)의 개발
신준호(Shin, Jun-Ho),이한승(Lee, Han-Seung),박원준(Park, Won-Jun) 대한건축학회 2013 大韓建築學會論文集 : 構造系 Vol.29 No.4
There are eighteen specific codes in relation with building construction including KBC(Korea Building Code) to achieve appropriate construction quality. These codes were established or revised in a separate way focusing on the safety and functional purpose without an agreement of technical terms, and don"t reflect the current trends of green design, sustainable development and public welfare. In this point of view it is necessary to revise the KBC globalized including green and welfare beyond the scope, safety and function, in the existing code. This paper aims to propose the orientation to establish or revise the KBC by comparison of codes of seven countries, analyzing their features and implications on the area of building material and construction (KBC-MC).