http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
지하공간 피난 안전 규정 분석 및 설계가이드라인에 관한 연구
박준욱(Park Jun-Wook),나욱정(Na Wook-Jung),홍원화(Hong Won-Hwa) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.5
The cities are getting complicated. This caused the applicability development of the underground spaces. Comparing with the spaces above the ground, the underground spaces have no windows and tightly sealed. These make the people hard to escape in case of an emergency. Especially, currently constructed underground spaces have more potential to become large-scale fires in the event of a fire or other disaster since they are connected to subway platforms and underground shopping centers. Therefore, it is planned to analyze the standards for evacuation safety in domestic and foreign. In conclusion, the purpose of this paper is to derive the problems which has a potential to be enhanced from the existing regulations. Furthermore, a design guideline for the improvement of the evacuation safety is suggested based on the developed standards in advanced countries such as U.S. and Japan.
박준욱(Park Jun-Wook),전규엽(Jeon Gyu-Yeob),홍원화(Hong Won-Hwa) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
Domestic country is not prepared with institutional and technological system although awareness of fire hazards from large scale subway fire recently occurred is spread. The purpose of this study is to suggest ways of standardization of evacuation safety under the domestic circumstances as the level of technology lag behind comparing with developed countries'. Some fire safety model has been suggested by developed countries such as U.S. and Japan, which have studies, fire safety design and evaluation of evacuation safety performance in case of emergency, with their own evacuation safety standards and methods. Referring to the model of evacuation evaluation, this study finds out information such as laws, references, tools, techniques and provisions and then helps us understand limits of articles of evacuation safety in domestic underground living spaces. Considering evacuation conditions and characteristics in domestic underground living spaces, this study suggests the way utilizing the fire safety design and evaluation of evacuation safety performance.
고속도강 압연롤의 고온마모특성에 미치는 템퍼링 온도의 영향
이정호,박준욱,이성학,이희춘,오준철 대한금속재료학회(대한금속학회) 2000 대한금속·재료학회지 Vol.38 No.2
This study is concerned with the effects of tempering temperature on wear properties and surface roughness of a high speed steel (HSS) roll manufactured by centrifugal casting method. Hot-rolling simulation test was carried out using a high-temperature wear tester capable of controlling speed, load, and temperature. The test results revealed that the peak-tampered roll specimen showed the best wear resistance because it contained a hard matrix. However, its surface roughness deteriorated as the scratching wear proceeded, thereby leading to increase in friction coefficient. In the over-tempered specimens containing a number of fine spherical carbides in the matrix, the abrasive wear occurred predominantly as fine carbides were fallen off from the worn surface, and thus the surface roughness was enhanced by more homogeneous wear of matrix and carbides. These findings suggested that over-tempering would be more desirable in order to improve wear resistance with consideration of the surface roughness of the HSS roll.
골반골 치골지 골절의 동반손상에 관해서 : 컴퓨터 단층촬영의 필요성 The Role of Computerized Tomography
이충길,권진우,손경태,신승호,박준욱 대한골절학회 1999 대한골절학회지 Vol.12 No.1
Pelvic fractures in general can be divided into two major types, based on the amount of energy involved: low-energy mechanisms are usually fractures of individual bones of the pelvic ring and high-energy mechanisms results in more severe injury to the pelvic ring, generally producing pelvic ring disruption. Pelvic fractures resulting from low-energy mechanism are usually fractures of individual bones of the pelvic ring that do not damage the true integrity of the ring structure. These include avulsion fractures, isolated fractures of the sacrum, and iliac wing fracture. Computerized tomography permits confirmation of findings noted on plain film and delineates injury to the posterior ring. It facilitates subclassifying the fracture according to degree of severity, as in the Young classification. The purpose of this study is to evaluate the role of CT, which is to identify the combined injuries of pubic ramus fractures. The sacrum impacted fracture and sacroiliac joint injury are often unidentified and diagnosed as an isolated fracture to the pubic ramus. The 42 cases of pubic ramus fractures on conventional radiography were simultaneously performed CT from June 1996 to February 1998. The results of associated injuries were as follows. 1. In 34 cases (81%) posterior pelvic ring injuries (sacral fractures 28 cases, anterior sacroiliac joint widening 6 cases) were observed. 2. CT was very useful to diagnose the posterior pelvic injury and to determine the mechanisms of injury.