http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
크로마뎁스3D를 활용한 인터랙티브 입체영상 콘텐츠 프로토 타입 연구
장정호(Jung-Ho Jang),오승환(Seung-Hawn Oh) 한국멀티미디어학회 2009 한국멀티미디어학회 학술발표논문집 Vol.2009 No.2
본 논문에서는 입체영상과 크로마뎁스3D에 관한 개념과 원리, 사례를 분석하고 이 내용을 기초로 하여 작품을 만드는데 있어서 방법론을 제안하였다. 제작은 max/msp 툴과 크로마뎁스3D 를 활용하여 인터랙티브 입체영상 프로타입을 기획, 제작하였다.
굴삭기 경량화를 위한 고강도 강판 적용 부재의 치수최적설계
장정호(Jung-Ho Jang),송정한(Jung-Han Song),이근안(Geun-An Lee),이혜진(Hye-Jin Lee),석정호(Jung-Ho Seok),안창기(Chang-Gi Ahn),김세호(Se-Ho Kim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
An attachment part of an excavator consists of boom, arm and bucket. Because these weight make a massive impact on the upper and lower structure, these parts of the structure should be optimized properly for the light weight design of an excavator. In this paper, for this reason, the optimization of an excavator boom was performed; the weight as objective function, the thickness of the boom plate as design variables and the stress of the structure as constraints. About five kinds of operation mode of an excavator existing models and advanced high strength steel plate models have compared the results of the optimization. Optimization results, the mass of existing models 12.5% and advanced high strength steel plate models 14% was reduced.
토끼 전완부 요골 결손 부위에 자가 이식된 골모세포의 골형성능
김석중(Seok-Jung Kim),장정호(Cheong-Ho Chang),장재덕(Jae-Deog Jang),이승구(Seung-Koo Lee),박원종(Won-Jong Bahk),인용(Yong-In),윤형문(Hyung-Moon Yoon) 대한정형외과학회 2005 대한정형외과학회지 Vol.40 No.1
목적: 골모세포를 해면골과 골수에서 분리한 후, 이를 다량으로 배양하여 골 결손부위에 이식하였을 때, 이 부위에 안정성을 부여해 줄 수 있는 골조직을 형성하는가를 보고자 하였다. 대상 및 방법: 뉴질랜드 백색 토끼 20마리의 전완부의 요골 간부에 15 ㎜ 정도의 골결손 부위를 만들었다. 실험군 10마리는 토끼의 장골에서 해면골과 골수을 채취하여 여기서 골모세포를 분리한 후 배양하여, 이를 골결손을 만든 후 3주째에 결손 부위에 주사기로 주입하였다. 대조군 10마리는 토끼의 장골에서 해면골을 얻어 이를 골결손 부위에 이식하였다. 실험 후 3주, 6주 및 9주에 방사선 촬영을 하였고, 9주에 토끼를 희생시켜 조직을 얻었다. 결과: 실험군에서 정상 골조직의 형성을 보이고 있으며 방사선 검사상 골결손 부위에 골형성이 관찰되었다. 대조군과 비교하여 비슷한 골형성의 시기 및 유합속도를 보였으며 조직 검사상 비슷한 정도의 골형성이 관찰되었다. 결론: 골결손 부위에 자가 이식 된 골모세포는 골화를 유도함을 확인 하였다. 향후 골이식이 필요한 여러 상황에 적용할 수 있을 것이라 기대된다. Purpose: To evaluate the osteogenic potential of an autologous cultured osteoblast transplant to the bone defects. Materials and Methods: Radial bone defects over 15 ㎜ were made in 20 New Zealand white rabbits using the anterior approach. There were 10 rabbits in the control group, which underwent an iliac bone graft to the preformed bone defect 3 weeks from the initial operation. There were 10 rabbits in the experimental group that underwent an autologous cultured osteoblasts injection. After 9 weeks, both groups were compared radiologically and histologically. Results: The osteogenesis in both groups were progressed similarly and there was no difference in terms of the amount of bone formation and the duration of the bone union. Conclusion: An autologous cultured osteoblast transplant to the bone defect produces bone efficiently. In addition, it can be applied to a wide field, which requires a bone grafting operation.
노대진 ( Noh Dae Jin ),장정호 ( Jang Jeong Ho ),정성현 ( Jung Sung Hyeon ) 한국구조물진단유지관리공학회 2023 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.27 No.1
최근 전세계적으로 기후변화에 따른 천재지변이 빈번하게 발생하고 있어 노후화된 수자원시설물과 설비에 대한 내진 성능 평가 및 구조 건전성 평가의 중요성이 대두대고 있으나, 국내 기존 댐 강재수문에 대한 관련 연구 및 진단 지침 등이 미비한 실정이다. 본 연구에서는 내진 성능 평가 및 구조 건정성 평가의 기초가 되는 댐 강재수문에 대한 동특성 추정을 위하여 댐 강재수문에 적용할 수 있는 진동측정 및 분석, 변형률계 활용 등의 진단기술을 도입하여 안정적인 수문관리에 필요한 기 술에 대한 가이드를 제공하고자 한다.
두과수엽류의 섬유성분 특성 , 결합 단백질의 소화율에 관한 연구
김대진(Dae Jin Kim),장정호(Jung Ho Jang) 한국축산학회 1987 한국축산학회지 Vol.29 No.9
This experiment was conducted to evaluate the characteristic of fiber, cell wall-nitrogen and dry matter digestibility (DMD) of Robinia pseudo acacia, lespedeza bisolor and Pueria thunbergiana grown in mountainous area. The materials were separated into leaves and petioles or stem (Pueria thunbergiana) samples, and they were dried at 80℃ for 24 hr and ground to pass a 1-㎜ screen. Samples were subjected to the determination of the neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), NDF-nitrogen, ADF-nitrogen and DMD by pepsin-cellulase technique, whereas corrected-ADF, corrected-NDF and corrected hemicellulose were calculated, and energy values were calculated by DMD of pepsin-cellulase technique. The results obtained were as follows: 1. The NDF of shrubby leaves and petioles or stem were ranged 52.33%-59.05% and 67.20%-73.95%, respectively, and the NDF was increased significantly by advanced stage of maturity (p$lt;0.01). 2. The ADF of shrubby leaves and petioles or stem were ranged 28.88%-45.13% and 47.06-54.11%, respectively, and the ADF was increased significantly by advanced stage of maturity (p$lt;0.01). 3. The ADL of shrubby leaves and petioles or stem were ranged 4.54%-8.52% and 12.90%-17.53%, respectively, and the ADL was increased significantly by advanced stage of maturity (P$lt;0.01). 4. The protein of shrubby leaves and petioles or stem were ranged 16.57%-30.04% and 8.23%-17.16%, respectively, and the crude protein shrubby leaves and stem for Pueria thunbergiana was decreased, but the other chemical compositions were not decreased by advanced stage of maturity. 5. The NDF-protein (N × 6.25) of shrubby leaves and petioles or stem were ranged 21.68%-33.30% and 6.75%-10.28%, respectively, and the ADF-protein was not effected by advanced stage of maturity. 6. The ADF-protein (N × 6.25) of shrubby leaves and petioles or stem were ranged 5.35%-14.53% and 3.69%-5.74%, respectively, and the ADF-protein was not affected by advanced stage of maturity. 7. The ADS-protein of shrubby leaves petioles or stem were higher than that of NDS-protein. 8. The DMD of shrubby leaves and petioles or stem were ranged 49.55%-59.51% and 42.29%-48.38%, respectively, and they were decreased significantly by advanced stage of maturity (P$lt;0.01). 9. The estimated energy (DE, TDN and ME) values of shrubby leaves and petioles or stem were decreased by advanced stage of maturity.