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철근콘크리트 깊은 보의 현행 스트럿-타이 설계기준에 대한 비교 및 평가
김진우,홍성걸,이영학,김희철,김대진,Kim, Jin Woo,Hong, Sung-Gul,Lee, Young Hak,Kim, Heecheul,Kim, Dae-Jin 한국전산구조공학회 2014 한국전산구조공학회논문집 Vol.27 No.4
The current American Concrete Institute(ACI), Canadian Standard Associate(CSA) and CEB-FIP Model Code 2010 provisions on the shear strength of a simply supported deep beam suggest that deep beams should be designed using the strut-and-tie model. Although this is a useful methodology to design members in disturbed regions, the quality of the design is highly dependent on the truss model that designers create. However, Hong et al. derived the shear strength equations of reinforced concrete deep beams. This thesis investigates the validity of the current ACI, CSA and CEB-FIP code provisions on the shear strength of simply supported reinforced concrete deep beams by comparing them with the shear strength equations proposed by Hong et al. The comparison shows that all of these code provisions provide reasonable estimates on the shear strength of concrete deep beam members and the selection of an internal truss model plays an important role on the estimation of shear strength.
한국 여성 근로자의 식사문제와 관련된 직무 스트레스 요인
김진우,전상원,김은진,신동원,오강섭,신영철,임세원,Kim, Jin-woo,Jeon, Sang-Won,Kim, Eun-Jin,Shin, Dong-Won,Oh, KangSeob,Shin, Young-Chul,Lim, Se-Won 대한불안의학회 2018 대한불안의학회지 Vol.14 No.1
Objective : To determine the association between occupational stress and disordered eating problem in Korean female employees. Methods : We studied 1,452 female employees who attended mental health screenings. Using the Korean Occupational Stress Scale-Short Form (KOSS-SF) and 26-item Korean version of Eating Attitude Test, occupational stress and disordered eating problem were evaluated, respectively. Sociodemographic and clinical characteristics of those with disordered eating problem were examined. Multiple logistic regression analysis was performed to determine which subscale of KOSS-SF was associated with disordered eating problem. Results : Disordered eating problem was associated with interpersonal conflict [odds ratio (OR) 1.882, 95% confidence interval (CI) 1.138-3.112] among various kinds of job stresses. Lack of reward (OR 7.164, 95% CI 1.139-45.043) and insufficient job control (OR 1.953, 95% CI 1.119-3.411) were associated with disordered eating problem in the underweight and normal weight group, respectively. Conclusion : There is an association between occupational stress and disordered eating problem among Korean female employees.
김진우,박종환,김진구,김훈,Kim, Jin-Woo,Park, Jong-Hwan,Kim, Jin-Gu,Kim, Hoon 한국조명전기설비학회 2003 조명·전기설비학회논문지 Vol.17 No.2
기존의 2차원 설계법을 이용하여 3차원 압출성형 HID 경면 반사판형상 설계에 적용할 수 있는 3차원 설계법을 개발하였다. 이 설계법을 적용하여 터널용 HID 조명기구의 반사판 형상을 설계하고 그 성능을 예측하였다. Using pervious two-dimensional reflector design method, the three-dimensional reflector design method is developed for extrusion molding HID specular reflector optical design, Using this method, a HID reflector for tunnel was developed and estimated its performance.
미세구조 제어를 통한 (Nd,Dy)-Fe-B 소결자석의 보자력 증가
김진우,김세훈,김영도,Kim, Jin-Woo,Kim, Se-Hoon,Kim, Young-Do 한국분말야금학회 2011 한국분말재료학회지 (KPMI) Vol.18 No.1
Sintered Nd-Fe-B magnets are widely used in many fields such as motors, generators, actuators, microwaves and so on due to their excellent magnetic properties. Many researchers have shown that the Nd-rich phase was essentially important for high magnet properties. In this study, we focused on controlling of the Nd-rich phase to enhance magnetic properties by the cyclic sintering process. Nd-Fe-B based sintered magnets were prepared by isothermal sintering and cyclic sintering processes. Magnetic properties and microstructure of the magnets were investigated. The coercivity was enhanced from 21.2 kOe to 23.27 kOe after 10 cycles of the sintering. The Nd-rich phase was effectively penetrated into the grain boundary between the $Nd_2Fe_{14}B$ grains by the cyclic sintering.
김진우,Kim Jin Woo 한국군사과학기술학회 2004 한국군사과학기술학회지 Vol.7 No.3
This is a boundary integral formulation for elastic shallow shell structures subjected to both membrane and bending loads. Fundamental solutions for shell actions are determined from the plate solutions and, finally the corresponding kernel functions for shell BIEs can be constructed. It is illustrated by solving an example of uniform load of spherical cap.
김진우,조준영,박경선,장준복,이진무,Kim, Jin-Woo,Jo, Jun-Young,Park, Kyoung-Sun,Jang, Jun-Bock,Lee, Jin-Moo 대한한방체열의학회 2011 대한한방체열의학회지 Vol.9 No.1
Purpose : The purpose of this study is to report the effect of Traditional Korean Medicine(TKM) on amenorrhea which oligomenorrhea has become worse. and to investigate the change of body temperature measured by Digital Infrared Thermographic Imaging(DITI). Methods : The patient in this case was 29-year-old female. The chief complain was amenorrhea which oligomenorrhea has become worse. We treated her by TKM. and evaluated the progress of symptoms by DITI. And then We compared DITI before treatment and after treatment. Results :After TKM treatment. the differences of temperature between Indang(印堂) and the four abdominal sites(CV4,6,12,17) were decreased on DITI. respectively. Conclusion : TKM treatment is effective on amenorrhea which oligomenorrhea has become worse. And DITI could be useful to assess the amenorrhea objectively. But more research should be needed.
김진우,이상학,Kim, Jin-Woo,Lee, Sang-Haak 대한기관식도과학회 2009 大韓氣管食道科學會誌 Vol.15 No.2
기관지내 평활근종은 기관지의 폐쇄정도에 따라 호흡곤란, 기침, 천명 등의 다양한 증세를 동반하며 그 증상이나 폐쇄정도가 경미할 경우 흉부 X-선 검사에서는 이상소견이 관찰되지 않을수도 있다. 따라서 폐렴이나 천식 등의 치료를 하다가 뒤늦게 발견되는 경우가 있는데 이 경우 반복적인 폐쇄성 폐렴과 폐농양, 기관지 확장증 등의 비가역적인 폐손상이 유발되며, 이는 전폐 절제술 등의 치료를 요하기도 한다. 따라서 무엇보다도 기관지내 평활근종의 치료 목표는, 증상에 따른 기관지내 병변의 의심과 기관지경에 의한 정확한 조기 진단과 보존적 수술, 내시경적 치료에 의해 비가역적인 폐손상을 방지하고 폐기능을 최대한 유지하는 것이다. 본 증례는 항생제 치료에 반응하지 않는 지속적인 폐렴으로 전원되어 온 환자에서 기관지경시행 후 기관지내 평활근종을 진단한 경우로, 이와 같은 경우 기관지내 병변의 가능성에 대해 반드시 고려하고 조기에 기관지경을 시행하여 정확한 진단을 하는 것이 무엇보다 중요하다고 하겠다.