http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
진공주조법에 의한 TiNi 형상기억합금 강화 6061Al 지적 복합재료의 계면 및 인장 특성
박광훈,박성기,신순기,박영철,이규창,이준희,Park, Gwang-Hun,Park, Seong-Gi,Sin, Sun-Gi,Park, Yeong-Cheol,Lee, Gyu-Chang,Lee, Jun-Hui 한국재료학회 2001 한국재료학회지 Vol.11 No.12
We investigated the change of mechanical properties for TiNi shape memory alloy by heat treatment. 6061Al matrix composites with TiNi shape memory alloy as reinforcement were fabricated by vacuum casting. TiNi alloy has the maximum tensile strength at 673K treated and there is no change of tensile strength and hardness at 448K treated. The composites, prepared by vacuum casting, showed good interface bonding by vacuum casting. It was about 3$\mu\textrm{m}$ of thickness of the diffusion layer. Tensile strength of the composite was in higher than that of 6061Al alloy as increased value of about 70MPa at room temperature and about 110MPa at 363K. We thought that the increase of the tensile strength at 363K was due to reverse transformation of the TiNi shape memory alloy.
박광훈,지정희,Park, Gwang-Hun,Ji, Jeong-Hui 대한흉부심장혈관외과학회 1976 Journal of Chest Surgery (J Chest Surg) Vol.9 No.2
Since. its first description by Albrecht in 1904 that hamartoma (Greek. meaning "error" and "tumor")is tumor-like malformation characterized by abnormal mixture of normal constituent in any organ it arises, hamartoma involving the lung has assumed the following clinical features.: 1) all the pulmonary lesions presenting as "coin lesions", it occupies about 8% according to various reports. It also constitutes the most prevalent lesion of all the benign lung tumors, appearing in 0.25% of the general population. 2) Peak incidence of the lesion occurs in the 5th and 6th decade as the carcinoma patient do, and the occasional growing tendency and periperal location as in this presentation renders the differential diagnosis from the malignant disease difficult and surgical intervention inevitable for definite histological diagnosis and treatment. 3) Nearly all the clinical investigations such as history, physical exam, bronchoscopy, culture, and cytological exam of sputum sre likely to futile:the only tool for detecting the presence of the lesion is X-ray, butthat's short of telling the true nature of it. 4) Because of its age of presentation and growing tendency in middle-aged adult, it still controversial whether it is developmental anomaly as Albrecht described, or true neoplasm denovo of fibrous connective tissue origin. This is a case report of surgical experience of pulmonary hamartoma which had nearly all the typical clinical features above mentioned and was reviewed with related literatures.
함께하는 삶 II - 민간 의료기관 RNA 정량검사 시행에 대한 어느 감염인의 소리
박광훈,Park, Gwang-Hun 대한에이즈예방협회 2009 레드리본 Vol.83 No.-
RNA 정량검사는 혈중 바이러스 농도를 측정하는 검사로, 감염인의 투약과 치료에 필수적인 검사로써 감염인이라면 $3{\sim}6$개월 간격으로 정기적으로 받는 검사이다. 그동안 국가에서 시행해 왔던 RNA 정량검사가 2009년 7월 1일자로 민간 의료기관에서 시행된다. RNA 정량검사를 민간 의료기관에서 실시하게 됨에 따라 감염인의 진료비 부담이 증가하게 된다. 병원에 따라서는 감염인의 비급여 본인부담금을 고려하여 특진료를 가산하지 않는 병원도 있으나 이는 극히 일부 병원에 불과한 실정이다.
독활 에탄올 추출물의 대장암 세포에서 Cyclin D1 단백질 분해 유도를 통한 세포 생육 억제활성
박수빈,박광훈,송훈민,박지혜,신명수,손호준,엄유리,정진부,Park, Su Bin,Park, Gwang Hun,Song, Hun Min,Park, Ji Hye,Shin, Myeong Su,Son, Ho Jun,Um, Yurry,Jeong, Jin Boo 한국약용작물학회 2017 한국약용작물학회지 Vol.25 No.5
Background: In this study, we evaluated the anti-cancer activity and potential molecular mechanism of 70% ethanol extracts of the root of Aralia cordata var. continentalis (Kitagawa) Y. C. Chu (RAc-E70) against human colorectal cancer cells. Methods and Results: RAc-E70 suppressed the proliferation of the human colorectal cancer cell lines, HCT116 and SW480. Although RAc-E70 reduction cyclin D1 expression at the protein and mRNA levels, RAc-E70-induced reduction in cyclin D1 protein level occurred more dramatically than that of cyclin D1 mRNA. The RAc-E70-induced downregulation of cyclin D1 expression was attenuated in the presence of MG132. Additionally, RAc-E70 reduced HA-cyclin D1 levels in HCT116 cells transfected with HA-tagged wild type-cyclin D1 expression vector. RAc-E70-mediated cyclin D1 degradation was blocked in the presence of LiCl, a $GSK3{\beta}$ inhibitorbut, but not PD98059, an ERK1/2 inhibitor and SB203580, a p38 inhibitor. Furthermore, RAc-E70 phosphorylated cyclin D1 at threonine-286 (T286), and LiCl-induced $GSK3{\beta}$ inhibition reduced the RAc-E70-mediated phosphorylation of cyclin D1 at T286. Conclusions: Our results suggested that RAc-E70 may downregulate cyclin D1 expression as a potential anti-cancer target through $GSK3{\beta}$-dependent cyclin D1 degradation. Based on these findings, RAc-E70 maybe a potential candidate for the development of chemopreventive or therapeutic agents for human colorectal cancer.