Fabrication and Characterization of Polymer Microlens using Solvent-vapor-assisted Reflow

양승우(Seung Woo Yang),김신형(Sin Hyeong Kim),김보현(Bo Hyun Kim),조영학(Young Hak Cho) Korean Society for Precision Engineering 2015 한국정밀공학회지 Vol.32 No.3

獨逸의 都市形態學 發展過程에 관한 硏究 Ⅰ

梁承雨(Yang Seung-Woo) 대한국토·도시계획학회 2000 國土計劃 Vol.35 No.3

과학데이터의 공유·활용 촉진을 위한 정책방안

양승우(Yang, seung woo) 충북대학교 법학연구소 2015 과학기술과 법 Vol.6 No.1

For scientific data, the vanguard in the era of informatics science, can function as a verification tool for research outcomes and enhance productivity of R&D from reuse of yielded scientific data, related policies are being discussed. Supervision and utilization system of scientific data is drawing attention for the importance of ‘Big data’ and the shift in paradigm of research. Legislation authorities consider distribution and utilization of scientific data play important roles in enhancing national competitiveness and now on the phase of enacting related supervision policies. Despite that other countries are attempting legal approaches on a national level for systematic supervision of scientific data, Korea lacks supplementary supervision strategies of scientific data on a national level. Korea only provides scientific data in forms of bibliography, statistic, etc. in regard to distribution & utilization system of scientific data, and the failure of incentive system in supervising and publicizing scientific data is implicated as the primary reason behind impeding development of distribution & utilization system of scientific data. Therefore in this paper, general environment and legal issues in distribution and utilization of scientific data related to national R&D program, or in other words, ⅰ) Government 3.0 and distribution & utilization policy of scientific data, ⅱ) issues in disclosure of scientific data related to Copyright Act and Public Data Act, and ⅲ) relation between distribution & utilization of scientific data and personal information were analyzed. Based on my analysis, policy alternatives for distribution & utilization of scientific data, that is, ⅰ) clarification of scientific data for registration and donation and its coordination with incentive system, ⅱ) shifting focus of strategy from scientific data supervision to utilization, ⅲ) coordination between research field and publication system when constructing repository for scientific data, and ⅳ) revision to facilitate distribution & utilization of scientific data are each proposed.

공동주택 리모델링시 주차공간 확보기준에 따른 영향 연구

양승우(Yang, Seung Woo),성순택(Seong, soon taek) 한국도시설계학회 2008 도시설계 : 한국도시설계학회지 Vol.9 No.3

정부 연구개발사업 예비타당성조사제도 개선방안

양승우(Seung Woo Yang),이민형(Min Hyung Lee),이명화(Myong-Hwa Lee),권보경(Bo Kyung Kwon) 과학기술정책연구원 2015 정책연구 Vol.- No.-

개발제한구역 취락지구 지정방법 개발 및 적용에 관한 연구

양승우(Seung-Woo Yang),이상경(Sang-Kyeong Lee),정창무(Chang-Mu Jung),배정남(Jeong-Nam Bae) 서울연구원 2006 서울도시연구 Vol.7 No.3

피부선량 측정을 위한 Lead-Monoxide 기반의 Silicon Passive layer PbO 선량계 개발 및 평가

양승우(Seung-Woo Yang),한무재(Moo-Jae Han),정재훈(Jae-Hoon Jung),배상일(Sang-Il Bae),문영민(Young-Min Moon),박성광(Sung-Kwang Park),김진영(Jin-Young Kim) 한국방사선학회 2021 한국방사선학회 논문지 Vol.15 No.6

피부는 방사선에 대한 민감도가 높기 때문에 방사선치료 시에 피부에 조사되는 선량을 정확하게 측정하여 과도한 피폭을 방지할 필요가 있다. 임상에서는 film, OSLD, TLD, glass 선량계등과 같은 선량계를 사용하여 피부선량을 측정하고 있지만, 이러한 선량계들은 피부곡면에서의 정확한 선량측정이 힘든 문제점이 있다. 본 논문에서는 이러한 문제를 해결하고자 인체 굴곡에 따라서 부착이 가능한 피부선량계를 개발하고 그 반응 특성을 평가하였다. 선량계 제작에는 높은 원자번호(ZPb: 82, ZO: 8)와 밀도(9.53 g/cm3)로 방사선검출 측점에서 우수한 특성을 가지고 있는 Lead oxide(PbO)와 인체 굴곡에 따라 휘어질 수 있는 silicon 바인더를 사용하여 재조하였다. 한편 PbO 물질로 제작된 선량계의 경우 산화로 인한 성능 저하가 존재하기 때문에 parylene 등을 사용하여 성능저하를 방지해오고 있었지만, 기존에 사용된 parylene은 bending에 대한 영향을 받기 때문에 silicon을 이용한 새로운 형태의 passive layer를 제작하여 피부선량계에 적용하였다. 피부선량계의 특성평가는 SEM, 재현성, 선형성을 분석하여 평가하였다. SEM 분석을 통하여 bending에 영향을 받는지 평가하였으며, 6 MeV 에너지에서의 재현성, 선형성을 평가하여 피부선량계로 적용이 가능한지 평가하였다. SEM 분석을 통하여 선량계 표면을 관찰한 결과, parylene으로 passive layer가 올라간 parylene passive layer PbO 선량계는 구부러 졌을때, 표면에 crack이 발생하였다. 그에 반해 silicon passive layer가 올라간 silicon passive layer PbO 선량계에서는 crack 이 관찰되지 않았다. 재현성 측정 결과에서 silicon passive layer PbO 선량계의 RSD는 1.47%로 평가기준 RSD 1.5%를 만족하였으며, 선형성 평가 결과에서는 R2값이 0.9998로 나타나 평가기준 R2 0.9990을 만족하였다. silicon passive layer PbO 선량계는 bending에 따른 crack이 발생하지 않으며, 재현성, 선형성에서 높은 신호안정성과 정밀성, 정확성을 보여주어 피부선량계로의 적용이 가능한 것으로 평가되었다. Due to the high sensitivity to radiation, excessive exposure needs to be prevented by accurately measuring the dose irradiated to the skin during radiation therapy. Although clinical trials use dosimeters such as film, OSLD, TLD, glass dosimeter, etc. to measure skin dose, these dosimeters have difficulty in accurate dosimetry on skin curves. In this study, to solve these problems, we developed a skin dosimeter that can be attached according to human flexion and evaluated its response characteristics. For the manufacture of the dosimeter, lead oxide (PbO) with high atomic number (ZPb: 82, ZO: 8) and density (9.53 g/cm3) and silicon binders that can bend according to human flexion were used. In the case of a dosimeter made of PbO material, the performance degradation has been prevented by using parylene and others due to the presence of degradation due to oxidation, but the previously used parylene is affected by bending, so a new form of passive layer was produced and applied to the skin dosimeter. The characteristic evaluation of the skin dosimeter was evaluated by analyzing SEM, reproducibility, and linearity. Through SEM analysis, bending was evaluated, reproducibility and linearity at 6 MeV energy were evaluated, and applicability was assessed with a skin dosimeter. As a result of observing the dosimeter surface through SEM analysis, the parylene passive layer PbO dosimeter with the positive layer raised to the parylene produced cracks on the surface when bent. On the other hand, no crack was observed in the silicon passive layer PbO dosimeter, which was raised to silicon passive layer. In the reproducibility measurement results, the RSD of the silicon passive layer PbO dosimeter was 1.47% which satisfied the evaluation criteria RSD 1.5% and the linearity evaluation results showed the R2 value of 0.9990, which satisfied the evaluation criteria R2 9990. The silicon passive layer PbO dosimeter was evaluated to be applicable to skin dosimeters by demonstrating high signal stability, precision, and accuracy in reproducibility and linearity, without cracking due to bending.

영업비밀의 쟁점 및 효과적 보호방안에 대한 검토

양승우(Yang Seung-Woo) 중앙대학교 법학연구원 2006 法學論文集 Vol.30 No.1

  During the past years, a number of trade secrets infringement cases have drawn considerable media attention as they involved illegal disclosure of valuable technology owned by some of the major Korean corporations. With the rapid growth of the information and technology industry in Korea, there is a growing awareness of the significance of trade secrets as valuable corporate property among the companies and individuals investing heavily in the research and development of state-of-the-art technologies.<BR>  Notwithstanding the importance of trade secrets, however, Korean law had traditionally been scarcely protective of trade secrets of companies. It is only recently, in the wake of several major trade secret infringement cases in Korea, that the Korean government began to take some meaningful steps to strengthen its legal regime for the protection of trade secrets. Specifically, in 2004, the Korean government amended the Trade Secret Protection Act to further strengthen the protection of trade secrets.<BR>  Protection of trade secrets is important in the sense that once trade secrets are disclosed to a third party, they experience a substantial loss in their economic utility due to their confidential nature. Furthermore, the loss of economic utility is a serious blow to the enterprise that owns trade secrets as it materially damages the competitiveness of such enterprise in the market.<BR>  Based on experience of representing numerous corporations in trade secret infringement disputes, we would advise the owners of trade secrets to consider taking the following measures in order to protect their trade secrets from illegal disclosure or use:<BR>  In case a licensor enters into a license agreement with a prospective licensee concerning a technology that is prone to illegal disclosure, the licensor should consider inserting a non-disclosure provision in the license agreement which would prohibit the licensee from unauthorized disclosure of the trade secrets transferred to the licensee under the license agreement. In this regard, it should be noted that questions may arise under Korean law concerning the issue of whether if the non-disclosure obligation has a specific term, the licensee, after the expiration of such term, is entitled to actively disclose the trade secrets to a third party without payment of any royalties to the licensor. In practice, there have been instances where licensees have engaged in freely using the trade secrets or even licensing the trade secrets to a third party after the expiration of the term of the non-disclosure obligation.<BR>  To prevent any illegal disclosure of trade secrets internally by officers or employees, an enterprise may set up employment regulations or require a written undertaking from new or resigning officers or employees to the effect that such officers or employees shall not illegally disclose or use the trade secrets of the enterprise during or after the term of their employment. Additionally, it is also possible for the enterprise to prohibit its officers or employees from being employed by any competitors of the enterprise or from competing with the enterprise themselves for a specific term after the term of their employment. In this regard, it is important to note that the term of such non-compete restriction should be a reasonable one, as an unreasonably lengthy term of a non-compete restriction could be deemed as an unreasonable usurpation on such officer"s or employee"s freedom to choose an occupation under the Korean Constitution and thus, deemed unenforceable.<BR>  An enterprise that owns trade secrets is recommended to establish and operate trade secret management rules. Moreover, the enterprise should consider designating a person responsible for protection of trade secrets of the enterprise and clearly defining the scope of his responsibilities. It is also helpful to provide regu

마이크로스트립 구조 해석을 위한 Closed-Form 그린 함수

양승우(Seung-Woo Yang),김성진(Sung-Jin Kim),김건우(Gun-Woo Kim),이택경(Taek-Kyung Lee) 한국전자파학회 2008 한국전자파학회논문지 Vol.19 No.3

평면형 구조에서 공간 영역 그린 함수를 구하기 위해서는 무한 Sommerfeld 적분을 계산하여야 한다. 무한적분을 짧은 시간에 계산하기 위한 실수축 적분 방법(real axis integration method)은 주파수와 거리에 대해 넓은 범위에 걸쳐 매우 정확한 방법이지만 관측점의 수직 성분 z가 변하게 되면, 근사의 과정을 반복해야 하는 비효율성과 z가 커질수록 파수 영역 함수의 변화가 심해져 정확한 근사가 어렵다는 단점이 있다. 본 논문에서는 폐루프 적분 경로를 이용하여 파수 영역 함수를 근사화 함으로써 일반적인 마이크로스트립 구조에서 기존의 결과에 비해 정확한 closed-form 그린 함수를 구하는 방법을 제시하였다. In the layered medium, the Sommerfeld integral must be evaluated to calculate a space domain Green's function. The real axis integration method provides stable and accurate results over wide ranges of the observation distance and the singnal frequency. But this method has the inefficiency of approximation when the field point z is changed. Also, as the amplitude of z increases, the change of the spectral domain function is more rapidly. Therefore, the approximation is difficult when z becomes larger. In this paper, we propose a method to calculate an accurate closed-form Green's function for microstrip structure by using the closed-loop integration path.

일제시대 서울 도심부 회사 입지 및 가로망 변화의 특성에 관한 연구

양승우(Yang, Seung-Woo),최상근(Choi, Sang-Keun) 한국도시설계학회 2001 도시설계 : 한국도시설계학회지 Vol.5 No.1