http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Al7075-T6의 압축잔류응력 및 피로 수명에 미치는 재피닝의 효과
오성훈(Sung-Hun Oh),이용성(Yong-Sung Lee),정성균(Seong-Kyun Cheong) 한국생산제조학회 2016 한국생산제조학회지 Vol.25 No.4
The effects of re-peening on the compressive residual stress and fatigue life of Al7075-T6 were investigated. The compressive residual stress induced on the surface of components by shot peening is known to increase the fatigue life. However, the fatigue load relaxes the compressive residual stress of components. Re-peening is a technique to again induce the relaxed compressive residual stress and increase the total fatigue life of components. In this study, the re-peening process was applied to fatigue-loaded specimens. The compressive residual stress and fatigue life were examined for re-peened specimens with fatigue ratios of 30%, 50%, and 70%. The results showed that the compressive residual stress of the specimens was relaxed under the fatigue load. The re-peening process significantly increases the compressive residual stress and total fatigue life.
성남위례 공공실버주택 통합돌봄을 위한 Wel-Tech 통합사례관리 시스템
안정호(Jung-Ho Ahn),오성훈(Sung Hun Oh) 한국디지털콘텐츠학회 2022 한국디지털콘텐츠학회논문지 Vol.23 No.1
This paper explains the integrated case management system developed to provide community care services for the elderly living in the Seongnam Wirye Public Silver Housing, and describes the results and lessons learned from the pilot operation. It is important to manage and utilize data to realize consumer-centered integrated community care by linking various services and resources that have been segmentally provided. For this reason, the developed WT integrated case management system consists of a welfare center support module, an in-house support module, and a living lab support module. Through the pilot operation conducted for 5 months, it was possible to confirm the need for an integrated case management system and the satisfaction of users. Through trial and error experienced due to a lack of understanding of the elderly, important lessons such as the importance of UI/UX design for the elderly, miniaturization of devices, and minimization of interactions were learned.
승용차부품의 정면밀링가공시 공구마모 및 표면거칠기 특성에 관한 연구
김성일(Seong-Il Kim),오성훈(Seong-Hun Oh),문상돈(Sang-Don Mun),김태영(Tae-Young Kim) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_1
The characteristics of tool wear and surface roughness in machining automobile parts have the paramount importance in improving the productivity. Therefore, the width of flank wear, cutting force, and surface roughness are monitored to analyse characteristics of tool and surface roughness. The experimental investigation is mainly focused on the characteristics of tool wear and surface roughness in machining automobile parts by using uncoated tungsten carbide tool(WC). TiN coated tool, and cermet tool.<br/>
김영진,김영수,김주헌,이형중,고용,오성훈,김광명,오석전,Kim, Young Jin,Kim, Young Soo,Kim, Ju Hun,Yi, Hyeong Joong,Ko, Yong,Oh, Sung Hun,Kim, Kwang Myung,Oh, Suck Jun 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.10
Spontaneous herniation of the spinal cord is a very rare. It's clinical symptom presents with progressive myelopathy. A 42-year old male patient who presented the progressive left leg weakness and Brown-Seqaurd syndrome is presented. MRI showed a typical finding of dural defect and herniation of the cord on the level of T3-4. Repair of dural defect using an artificial dura and reposition of cord herniation were undertaken after three level laminectomies with SSEP monitoring. Postoperatively, symptoms were improved rapidly. In our knowledgement, this is first case being reported in Korea. This entity, although rare, should be considered in the differential diagnosis of myelopathy in the absence of a mass lesion.
콩발아배아추출물이 난소적출 랫트의 기억력 손실, 체중 증가 및 골다공증에 미치는 영향
정현철(Hyun Cheol Jeong),서우덕(Woo-Duck Seo),윤민규(Min-Kyu Yun),권민영(Min Young Kwon),이성진(Sung-Jin Lee),이승훈(Seung Hun Lee),유희종(Heui-Jong Yu),최식원(Sik-Won Choi),김선림(Sun Lim Kim),오성훈(Sung-Hoon Oh),손요한(Johann Sohn 한국식품영양과학회 2019 한국식품영양과학회지 Vol.48 No.6
많은 폐경기 여성들이 기억 감퇴, 체지방 증가, 골다공증 및 에스트로겐 결핍에 의한 고지혈증과 같은 증상으로 고통을 받고 있는데, 이러한 증상을 완화하기 위한 많은 연구가 이루어지고 있다. 본 연구에서는 난소 적출 rat 모델을 이용하여 SGE의 갱년기 증상 개선 평가를 진행하였다. SGE를 4주간 13 ㎎/㎏, 26 ㎎/㎏ 및 51 ㎎/㎏의 농도로 처리하면 OVX에 의한 체지방, 렙틴 및 심혈관 관련 지표의 증가를 유의적으로 억제할 수 있었으며, 이는 SGE가 에스트로겐 결핍으로 인한 비만을 억제할 수 있음을 나타낸다. 또한 OVX 모델에서 기억력 및 인지기능이 현저히 저해되는데, 본 연구를 통해 기억 인지기능은 OVX군에 비해 모든 SGE군에서 개선되었고 SGE 농도 의존적으로 개선됨을 확인할 수 있었다. 이러한 결과는 SGE가 OVX로 인한 기억 인지기능 감퇴를 억제할 수 있음을 나타낸다. 골다공증은 폐경기여성의 대표적인 증상 중 하나이며, 이 증상은 OVX rat에서도 확인된다. 뼈건강의 생화학적 지표인 ALP는 골다공증의 병리학적 지표로 간주하는데, SGE 투여군에서 OVX군에 비해 ALP 수준이 유의하게 감소했으며, 특히 대두이소플라본 섭취군보다 통계 유의적으로 개선됨을 확인하였다. 이러한 결과는 SGE가 ALP의 농도를 낮추고 골다공증을 개선하여 뼈 건강에 도움을 줄 수 있음을 보여준다. 추가로 단층 촬영을 이용하여 뼈의 미네랄 밀도를 측정했으며, 골다공증 진단에 사용되는 진단기준인 BMD는 OVX군에서 현저히 감소하였다. SGE를 4주 동안 처리하면 OVX의 효과가 반전되고 BMD가 유의하게 증가했다. 또한 골 강도의 평가를 위해 BV/TV를 측정하였는데, 모든 SGE 투여군에서 BV/TV가 OVX군과 비교하여 유의하게 증가하였음을 관찰하였다. 결론적으로 SGE는 OVX로 인한 기억력 감퇴 및 체지방 개선에 효과적이며, 특히 골다공증에 있어서는 대두이소플라본보다 통계 유의적 개선을 보여주어, 향후 여성갱년기 증상 개선 기능성 소재로써 개발 가능성이 충분할 것으로 기대된다. It is well-known that soybeans relieve hormone deficient symptoms in postmenopausal women. In recent studies, germination of soy germ was shown to increase bioactive components such as aglycone isoflavones, γ-amino butyric acid, and soyasaponins. Therefore, this study was conducted to explore the effects of germinated soy germ extract (SGE) on memory loss, obesity, and osteoporosis in an ovariectomized (OVX) animal model. We found that oral administration of SGE improved memory function in OVX rats using a passive avoidance test. Levels of leptin and alkaline phosphatase and adipocyte size were significantly decreased in the SGE-treated group. Moreover, administration of SGE significantly prevented OVX-induced bone loss in OVX rats compared to the isoflavone-fed group. These results indicated that SGE is effective for treatment of memory loss, obesity, and osteoporosis caused by ovariectomy in rats.