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신보성(Bosung Shin),강택원(Taek Won Kang) 대한비뇨기종양학회 2016 대한비뇨기종양학회지 Vol.14 No.1
Androgen deprivation therapy (ADT) has been one of the standard protocol for treating prostate cancer. The role for hormonal treatment initially was restricted to men with metastatic and inoperable, locally advanced disease. Now it has been extended to neoadjuvant or adjuvant therapy for surgery and radiotherapy, for biochemical relapse after surgery or radiation, and even as primary therapy for non-metastatic disease. Although ADT can improve survival, it can also cause significant morbidity and a decrement in quality of life (QOL). In this article, we discuss QOL problem caused by ADT and suggest for mitigating harm of ADT.
UV 펄스 레이저 가공의 구리 박막 두께에 따른 열-구조 연성 해석
신민재,신보성,Shin, Minjae,Shin, Bosung 한국레이저가공학회 2013 한국레이저가공학회지 Vol.16 No.2
Recently advanced laser processing is widely introduced to improve the efficiency of micro part production and to reduce the rate of inferior goods. In this paper the trend of delamination of single layer with both thin copper and polyimide according to the variation of copper thickness was investigated using the coupled thermal-structural analysis of ANSYS. From these analyses results, some conclusions were obtained. Firstly, the maximum temperature was increasing with respect to decrease of copper thickness. Secondly the maximum strain which was in general estimation the main effect of the delamination was observed in case of the copper thickness of $5{\mu}m$. Finally the trend of the delamination was decreasing with increasing the thickness of copper layer.
Thirumalai Dinakaran,Subramani Devaraju,Bosung Shin(신보성),Hyun-jong Paik(백현종),Seung-Cheol Chang(장승철) 한국고분자학회 2017 폴리머 Vol.41 No.6
탄소섬유전극을 기반으로 효소가 불필요한 과산화수소(H₂O₂) 센서를 분산된 은 나노와이어와 단일벽 탄소나노튜브를 탄소섬유전극 표면에 드롭캐스팅법으로 고정화하여 제작하였다. 센서 제작에 사용된 탄소나노튜브는 고분자 분산제인 술폰화 폴리(에테르 술폰)에 의하여 효과적인 길이/직경의 종횡비를 나타낼 수 있도록 개별 분산되었으며 센서의 성능 향상을 위하여 은 나노와이어와 더불어 컴포지트 형태로 제작되어 새로운 센서 제작법에 활용되었다. 제작된 센서는 H₂O₂에 대하여 높은 전기촉매활성과 재현성, 빠른 분석 시간 및 우수한 감도를 나타냄을 확인하였다(센서 감도: 1.3 μA·mM<SUP>-1</SUP>, 검출 한계: 0.69 μM (S/N=3) 및 검출 시간: 3초 미만). 따라서 본 연구에서 개발된 고분자 분산제를 사용한 단일벽 탄소나노튜브의 수용액 내에서의 분산도 향상은 효소가 불필요한 H₂O₂ 센서의 설계 및 제작에 활용될 것으로 기대된다. A new non-enzymatic hydrogen peroxide (H₂O₂) sensor based on carbon fiber microelectrodes (CFMEs) has been developed. The CFMEs were modified using a simple drop casting procedure with effectively dispersed silver nanowires (AgNWs) and debundled single-walled carbon nanotubes (SWCNTs). In aqueous solution, the SWCNTs were debundled with a high length/diameter aspect ratio using a synthesized polymer dispersant, sulfonated poly(ether sulfone) (SPES). Enhanced electrocatalytic activity of the sensor for the reduction of H₂O₂ was obtained with the sensor sensitivity of 1.3 μA·mM<SUP>-1</SUP> and the detection limit of 0.69 μM (S/N=3) with a quick turnaround time (less than 3 s). The results clearly reveal that the AgNW-SWCNTs/CFMEs possess high electro-catalytic activity and efficient sensitivity with high reproducibility and fast amperometric response production. Therefore, the proposed debundling approach can be expanded to design and develop nonenzymatic hydrogen peroxide sensors.
STS316L 분말의 레이저 클래딩층 특성에 관한 연구
홍성무,오재용,김동섭,장승철,신보성,Hong, SungMoo,Oh, JaeYong,Kim, DongSeob,Chang, SeungCheol,Shin, BoSung 한국마이크로전자및패키징학회 2017 마이크로전자 및 패키징학회지 Vol.24 No.3
Laser cladding is a technique for forming beads by melt-sintering with a laser while directly feeding metal powder onto the base material through nozzles. This technique, which is applied in laser surface treatment technology, is useful for repairing broken or worn parts by allowing selective formation of the surface layer of the base metal material. In this paper, laser cladding process was performed on STS316L powder using high power continuous wave laser with IR wavelength and the cladding characteristics according to process conditions were experimentally analyzed.
이성훈(Sunghoon Lee),구영삼(Youngsam Gu),신보성(Bosung Shin),최수길(Sukil Choi),이재용(Jeawong Yi),김광환(Kwanghwan Kim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
This paper describes Kappa 1.0L 3-cylinder gasoline engine that Hyundai has developed for small cars lately. This engine has been installed in small passenger cars named “i10”, “All new morning” etc. since November 2010. These cars are sold in global market including Korea, Europe, etc. Newly developed Kappa 3-cylinder engine is achieved not only the best-in-class performance but also highly improved fuel economy at practical driving condition compared with existing engine for satisfying the customer’s need. It is developed for various fuels, such as LPi-Bi-Fuel and FFV. It copes with emission control regulations in many countries and achieves the best-in-class fuel economy, NVH performance and lightweight. Kappa that is an in-line 3 cylinder DOHC 12 valves engine with D-CVVT technology is new developed engine, differentiated from existing engine. Major items for technical highlights are as follows -Dual CVVT and VIS for improving performance -Dual CVVT, offset crankshaft, ISG and reduced number of cylinder from 4 to 3 for improving fuel economy -Applying a ladder frame for reinforcing the tightening stiffness between an engine and a transmission and mounting accessory parts on the engine directly for improving its stiffness. -Optimized catalyst jewelry loading and valve timing for coping with the strict emission control regulations -Timing chain for improving durability