http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
사출제품 생산을 위한 웹기반 협업 및 제조정보 지원 시스템 개발
이두용,이홍희,Lee Doo Yong,Lee Hong Hee 대한안전경영과학회 2004 대한안전경영과학회지 Vol.6 No.4
The injection mold industry has strong relationship with many other industries. In the injection mold industry, the harmonious collaboration of the order-making companies, the mold-making companies, and the molded-parts making companies, which are distantly located, is very important. In this study, a web-based collaboration system is developed for the purpose. It offers the criterion to select appropriate production companies. It also tries to minimize the production cost of the mold design by distributing and evaluating the design information. The developed system is constructed using various recent web-programming tools.
스트랩 브레이스를 갖는 내력벽식 모듈러건축 스틸스터드 벽체의 반복하중에 대한 거동 연구
이두용,조봉호,김태형,하태휴,Lee, Doo Yong,Cho, Bong Ho,Kim, Tae Hyeong,Ha, Tae Hyu 한국강구조학회 2016 韓國鋼構造學會 論文集 Vol.28 No.6
스틸스터드 내력벽 시스템은 국외에서 중고층형 모듈러 건축에 널리 사용되는 구조형식이다. 국내의 중고층형 모듈러 시스템에 스틸 스터드 벽체를 적용하기 위해서는 내진성능 확보가 필수적이다. 본 연구에서는 스트랩브레이스를 갖는 모듈러 건축 스틸스터드 내력벽 시스템의 횡력저항성능 및 유효강성을 제안하였다. 스트랩 브레이스와 수직외측스터드의 사양을 달리하는 2개의 실물 실험체에 대해 주기하중에 대한 실험을 실시하여 제안된 설계식을 검증하였다. 수직외측스터드의 휨거동을 고려할 수 있는 설계식을 통해 실험체의 공칭강도, 탄성강성, 항복변위 등을 예측하고 실험을 통해 검증하였다. 실험에 의한 최대강도는 예측식 대비 1.11~1.18배 수준으로 평가되었다. 박판의 스트랩 브레이스를 갖는 스트랩 스터드패널은 일반적으로 에너지소산능력이 매우 낮은 것으로 평가되나, 본 연구에서 제안한 수직외측스터드의 유효높이를 줄이고 브레이스의 각도를 낮춘 시스템의 경우 등가점성감쇠비가 최대 9.42% 수준으로 충분한 에너지소산능력이 확보될 수 있음을 확인하였다. Load-bearing steel stud wall system is widely used for the middle-to-high rise modular buildings worldwide. Seismic performance is a key issue to apply load-bearing steel stud wall system to modular buildings in Korea. This study proposes a new strap braced steel stud wall system with enhanced seismic performance and design equations considering the flexural behaviour of the vertical outer studs. For the verification, two specimens with different strap braces and vertical outer stud were designed and tested. The test results showed that the total strengths were evaluated to be 1.11 to 1.18 times higher than the predicted values. Usually strap braced walls are considered to have low energy dissipation capacities. The proposed system showed enhanced seismic performance with equivalent damping of 9.42% due to the reduced pinching effects.
이두용(Doo Yong Lee),김병모(Byung Mo Kim),서용희(Yong Hei Suhr),최진정(Jin Jung Choi),한승수(Seung Soo Han),김광희(Kwang Hoi Kim) 대한내과학회 1987 대한내과학회지 Vol.33 No.6
N/A The present study was performed to evaluate the serum rGtp activity on ear1y detection and prevention of alcohol induced liver injury in 4184 persons with negative HBsAg, who live their common life. Prior to test we measured normal value of rGtp activity as contrast group among totals with numbers of 2226 (male 735, female 1491) which were HBsAg negative and no other LFT abnormality. In series of auther's test on teetotal group with cases of 2501 and habitual drinking group with cases of 1863 which were divided to 5 to 6 subgroups depending on daily amount, weekly frequency and total period in alcohol drinking respectively, we anlayzed comparatively the mean value and percentage of abnormality in rGtp, SGOT, SGPT and s-ALP in order to evaluate the efficacy of rGtp activity among each groups and teetoatla group and tested the influencing factor on rGtp. The results are summarized follows; 1) The mean values of rGtp activity in a normal contrast group were 17.9±11.0(SD) in male, 11.7±6.7 in female and 13.7±12.1 in total. 2) The total mean values of rGtp, SGOT, SGPT and s-ALP were 15.9±16.1, 17.25±7.8, and 54.2±25.6 in tee-total group and 33.6±43.0, 19.4±11.2, 22.4±18.5 and 55. 1±29.6 in habitual drinking group respectively, so the elevated rGtp, SGOT, SGPT and s-ALP in habitual drinking group compared to the teetotal group were obrained and statistically significant (p<0.05). Among each group of alcohol drinking the value of rGtp, SGOT and SGPT were increased tendency depending on increase in daily amount weekly frequency and toal period. 4) The rGtp activity was influenced by either of daily amount or weekly frequency or total period in alcohol drinking and we obtained by multiple regression test that most striking influencing factor on rGtp was weekly frequency of drinking. We concluded that rGtp is more sensitive than other liver function test in detection of alcohol-induced liver injury in a man who lives his common life and considered to be required to follow up rGtp activity as objective index to clearfy how to be influenced by abstinence of alcohol.
이두용(Doo Yong Lee),곽성조(Sung Jo Kwak),황면중(Myun Joong Hwang),박남수(Nam Soo Park),백영종(Young Jong Baek) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
This paper presents the optimal process control of newly developed SFFS (Solid Freeform Fabrication System). The process control of SFFS consists of nitrogen supplement, temperature setting, powder laminating, and laser sintering. The temperature setting has three steps of preheating, sustaining, and cooling as the process progresses. Powder laminating and laser sintering are carried out sequentially when the temperature reaches the desired point. The process is controlled by a PC-based controller which also supports a user-friendly interface and easy access for the parameters setting.
산업용 장비의 공정을 위한 빌드룸 온도 제어 SFFS SLS
이두용(Doo Yong Lee),곽성조(Sung Jo Kwak),황면중(Myun Joong Hwang),박남수(Nam Soo Park),김성종(Sung Jong Kim),김동수(Dong Soo Kim) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
This paper presents a real-time temperature controller for the industrial SFFS. The SLS (Selective Laser Sintering) process of the SFFS requires the temperature of the powder surface to be maintained close to the melting point. But the build-room temperature should not exceed a set point to prevent the previously sintered part from curling. The developed SFFS has two independently controlled upper and lower heaters. The heaters are controlled through SCR (Silicon Control Rectifier) and SSR (Solid-State Relay) by the control PC.