http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Alendronate 투여와 트레드밀 운동이 골량감소 모델 흰쥐의 골밀도에 미치는 영향
조대승 ( Dae Sung Cho ),이상직 ( San Jik Lee ),류승필 ( Sung Pil Ryu ),김현국 ( Hyun Kook Kim ),장웅찬 ( Eung Chan Jang ),이수천 ( Soo Chun Lee ) 한국운동영양학회 2002 Physical Activity and Nutrition (Phys Act Nutr) Vol.6 No.2
In the present study, 5 ㎎/㎏ BW glucocorticoid (GC) was used for loping osteoporosis. After this treatment, 5 ㎎/㎏ BW alendronate (A) was injected in the abdomen for the medical cure and exercise regimen was performed for weeks. Exercise-training was designed endurance exercise with treadmill exercise (TM), 28 m/min, 30 min/day, 5 day/week. Bone mineral density(BMD), bone mineral content(BMC), and bone intensity were measured with DEXA and Instron. Bone length and diameter were measured with caliper and blood calcium was analyzed with enzymatic method. Osteoporosis induced with GC was higher in BMC. In addition, BMD, intensity, bone length, diameter, and blood calcium was tended to reduce but not significantly different between treatments. GC-A group has increased BMD and blood calcium than other treatments (p<0.05). Diameter and intensity, however, were not significantly different. TM has increased bone length of GC-TM and GC-ATM compared to GC-A (p<0.05), however; diameter was not. These results suggested that only the exercise-training regimen after glucocorticoid-induced osteoporosis is too stressful in rats. Therefore, exercise training combined with alendronate administration is better method to increase those effects.
선박 전선 진동해석 효율성 향상을 위한 프레임워크 개발
조대승(Dae-Seung Cho),김진형(Jin-Hyeong Kim),최태묵(Tae-Muk Choi),김경수(Kyung-Soo Kim),최성원(Sung-Won Choi),정태석(Tae-Seok Jung),이도경(Do-Kyung Lee),석호일(Ho-Il Seok) 한국소음진동공학회 2011 한국소음진동공학회 학술대회논문집 Vol.2011 No.4
Free and forced vibration analysis of the global ship structure using the 3-dimensional finite element(FE) method requires not only the specialized knowledge such as ship structure interacted with fluid, damping and various excitations due to propulsion system but also time-consuming manual tasks in FE modeling, analysis and response evaluation. As a result, the quality of the vibration analysis highly depends on engineers expertise and experience. In this study, a framework system to improve the efficiency of global ship vibration analysis is introduced. The system promising the utilization of MSC/Patran and MSC/Nastran consists of various modules to support data management, FE modeling of ship structure and loading, input deck generation for free and forced vibration analysis, data extraction and evaluation of analysis results, and databases for FE models of marine diesel engines and vibration criteria. The system may be useful for pursuing standardization of uncertain analysis factors as well as reducing time, cost and human dependency in ship vibration analysis.