김유성교수 화갑기념호를 내면서

김유성 서울대학교 노동법연구회 2000 노동법연구 Vol.- No.9

Altered GABAergic Signaling in Brain Disease at Various Stages of Life

김유성,윤보은 한국뇌신경과학회 2017 Experimental Neurobiology Vol.26 No.3

In the healthy brain, gamma-aminobutyric acid (GABA) is regulated by neurons and glia. This begs the question: what happens in the malfunctioning brain? There are many reasons why diseases occur, including genetic mutations, systemic problems, and environmental influences. There are also many ways in which GABA can become dysregulated, such as through alterations in its synthesis or release, and changes in systems that respond to it. Notably, dysregulation of GABA can have a large impact on the brain. To date, few reviews have examined brain diseases in which dysregulation of GABA is implicated as an underlying factor. Accordingly, the time is ripe for investigating alterations in GABAergic signaling that may play a role in changes in neuronal activity observed in the major brain disorders that occur during various stages of life. This review is meant to provide a better understanding of the role of GABA in brain health and contributor to social problems from a scientific perspective.

제20호를 내면서

김유성 서울대학교 노동법연구회 2006 노동법연구 Vol.0 No.20

ZnO/Ag/SnO2 적층박막의 두께 변화에 따른 전기적, 광학적 특성 연구

김유성,최진영,박윤제,최수현,공영민,김대일 대한금속·재료학회 2019 대한금속·재료학회지 Vol.57 No.5

ZnO/Ag/SnO2 (ZAS) tri-layer films were prepared on glass substrates via RF and DC magnetron sputtering, and then the influence of the thickness of the ZnO and SnO2 layers on the optical and electrical properties of the ZAS films was investigated. As deposited ZnO 50 nm/Ag 10 nm/SnO2 50 nm films showed a higher figure of merit, 1.08 × 10-2 Ω-1, than the other films due to a high visible transmittance of 80.8% and a low resistivity of 1.21 × 10−4 Ωcm. From the observed results, it can be concluded that the ZnO 50 nm/Ag 10 nm/SnO2 50 nm tri-layer films can be used as a substitute for conventional transparent conducting oxide films in various opto-electrical applications.

민간투자법에 근거하여 이루어진 실시협약이 쌍방미이행 쌍무계약에 해당하는지 여부

김유성 사법발전재단 2021 사법 Vol.1 No.58

South Korea’s public-private partnership projects (PPP) worth KRW 13.3 trillion in aggregate as of 2020; as private capital investment projects were no longer guaranteed minimum revenue since 2006 onwards, the likelihood of a dispute between the competent authority and a private investment increased in a case where the cost-benefit analysis for PPP came below the estimate. As a result, we are seeing a surge of cases where a project implementor seeks a return of investment capital against a competent authority through various legal measures. At dispute in the subject case is whether a bankruptcy trustee of a project implementor in bankrupt can terminate the instant concession agreement. If termination is granted, the project implementor has an exit option by which it can recover the investment capital from the competent authority. In such case, projects funded by private entities can be further facilitated. If termination under the instant provision is not granted and the competent authority does not terminate the concession agreement, the bankruptcy trustee of the project implementor would convert the management and operation right and distribute the liquidated assets to the bankruptcy creditors. Where the management and operation right does not have a market value, the bankruptcy trustee relinquishes conversion and ends the bankruptcy process. The subject case recognized that a concession agreement concluded pursuant to the Public-Private Partnership Act may be subject to either direct or analogous application of the instant termination clause, and determined that in the instant case, the bankruptcy trustee may not terminate the instant concession agreement on the grounds that the instant concession agreement is a bilateral contract unfulfilled by both parties, considering the details of the Public-Private Partnership Act, the instant concession agreement, and the specific progress of the agreement at the time. There were a concurrence that the instant termination clause ought not be applied by analogy and a dissenting opinion that the instant termination clause does apply and the instant concession agreement constitutes a bilateral contract unfulfilled by both parties. The significance of the subject case can be found in that: (i) it is the first ruling on whether the instant termination clause may be applied to a concession agreement under the Public-Private Partnership Act; (ii) it provided a beginning point for discussion on the standard for analogous application of the legal doctrine concerning a contract under private law to a contract under public law; and (iii) it formulated the legal doctrine applicable to the question of whether provisions under private law are applicable going forward to a contract under public law or relationships involving public authorities. Therefore, the examination of the subject case must not simply focus on the conclusion of the Majority Opinion. The Majority Opinion suggested the standard for interpretation of whether a concession agreement governed by the Public-Private Partnership Act constitutes a bilateral contract unfulfilled by both parties. The Concurring Opinion provided the standard for determining whether private law provisions may be analogously applicable in the relationships involving public entities, including a contract under public law. The Dissenting Opinion developed the general legal doctrine regarding a bilateral contract unfulfilled by both parties one step further and reasoned that previous rulings have directly applied private law provisions to a public contract, providing reasons why it should be directly applied in future. It is expected that the subject case will afford ground for further in-depth studies in the field of administrative law and bankruptcy law with regard to the legal doctrine concerning a bilateral contract unfulfilled by both parties and whether private law provisions may be analogously applied to a public contract or relationships involv... 우리나라 민간투자사업의 추진규모는 2020년 누계 133조 원에 이르는데, 2006년 이후에는 최소운영수입보장사업을 시행하지 않음에 따라 민간투자사업의 경제성이 예상치를 하회하는 경우 주무관청과 민간투자업자 사이에 갈등이 발생할 가능성은 더욱 높아졌다. 민간투자사업이 실패하여 사업시행자가 여러 법률적 수단을 강구하여 주무관청을 상대로 투자금의 반환을 요구하는 경우가 여러 사건에서 문제가 되고 있다. 대상판결에서는 파산한 사업시행자의 파산관재인이 이 사건 실시협약을 해지할 수 있는지가 문제 되었다. 해지를 인정한다면, 사업시행자는 주무관청으로부터 투자금을 회수할 수 있는 민간투자사업에 대한 탈출구(Exit Option)를 보유하게 된다. 이 경우 민간투자사업이 보다 활성화될 수 있다. 이 사건 조항에 의한 해지가 인정되지 않고, 주무관청도 실시협약을 해지하지 않는다면, 사업시행자의 파산관재인은 관리운영권을 환가하여 파산채권자에게 배분하는 절차를 수행하게 된다. 관리운영권의 시장가치가 없다면, 파산관재인은 환가를 포기하고 파산절차를 종료하게 된다. 대상판결은 사회기반시설에 대한 민간투자법(이하 ‘민간투자법’이라 한다)에 근거하여 체결된 실시협약에도 이 사건 해지조항이 직접 적용되거나 유추적용될 수 있음을 인정하였고, 이 사건의 경우 민간투자법과 이 사건 실시협약의 구체적인 내용, 파산 당시의 구체적인 이행 정도 등을 고려하였을 때 파산관재인이 쌍방미이행 쌍무계약임을 이유로 이 사건 실시협약을 해지할 수 없다고 판단하였다. 이에 대하여 이 사건 해지조항이 유추적용되어서는 안 된다는 별개의견과 이 사건 해지조항이 적용되며, 쌍방미이행 쌍무계약에 해당한다는 반대의견이 있었다. 대상판결은 이 사건 해지규정이 민간투자법상 실시협약에 적용될 수 있는지 여부에 관하여 최초로 판시하였다는 것, 나아가 공법상 계약에 사법상 계약에 관한 법리를 유추적용하는 기준 등에 관하여 논의의 단초를 제공하였다는 점에서 의미가 있을 뿐 아니라, 향후 공법상 계약 내지 공법관계에서 사법규정이 유추적용될 수 있는지 여부에 적용될 수 있는 법리와 그 논거를 제시하였다는 점에서 그 의미가 크다고 할 수 있다. 따라서 대상판결이 다수의견의 결론 위주로 검토되어서는 안 된다. 다수의견은 민간투자법이 적용되는 실시협약이 쌍방미이행 쌍무계약에 해당하는지 여부에 대한 해석의 기준을 제시하였다. 별개의견은 공법상 계약 등 공법관계 전반에서 사법규정이 유추적용될지 여부를 판단하기 위한 기준을 제시하였다. 반대의견은 쌍방미이행 쌍무계약의 일반 법리를 한 단계 발전시켰고, 기존 판례가 공법상 계약에 사법규정을 직접 적용하여 왔음을 논증하면서, 앞으로도 직접 적용되어야 하는 이유를 제시하였다. 대상판결을 기초로 쌍방미이행 쌍무계약에 관한 법리 및 공법상 계약 내지 공법관계에서 사법규정이 유추적용될 수 있는지 여부에 관하여 행정법학계 및 도산법학계의 연구가 보다 성숙해질 것으로 기대된다.

黃帝內經, 그 解釋上의 諸問題

金裕成 대한한의학원전학회 1990 대한한의학원전학회지 Vol.4 No.-

스마트시티의 구성과 통합플랫폼 서비스

김유성 대한산업공학회 2019 ie 매거진 Vol.26 No.3

노동조합법 제3조 단서5호(복수노조)

김유성 한국노동법학회 1989 노동법학 Vol.- No.2

대학기금을 위한 자산배분전략 수립방안

김유성,Kim, Yu-Seong 한국대학교육협의회 2007 大學敎育 Vol.150 No.-

Electron Irradiation Effects on the Optical and Electrical Properties of ZnO/Ag/SnO2 Thin Films

김유성,최진영,박윤제,최수현,차병철,공영민,김대일 대한금속·재료학회 2020 대한금속·재료학회지 Vol.58 No.3

Transparent conductive ZnO 50 nm/Ag 10 nm/SnO2 50 nm (ZAS) tri-layer films were deposited on glass substrates by magnetron sputtering, and then the surface was subjected to intense electron beam irradiation to investigate the effects of electron irradiation on the structural, optical, and electrical properties of the films. After deposition, the ZAS thin films were electron-irradiated for 10 minutes, with varying electron incident energies of 300, 600, and 900 eV. The films that were electron irradiated at 900 eV showed higher optical transmittance of 83.6% in the visible wavelength region, and lower resistivity, of 4.75 × 10-5 Ωcm, than the other films. From the observed electrical properties and optical band gap, it was concluded that the optical band gap increased with the incident electron energy up to 600 eV. The optical band gap increased from 4.12 to 4.23 eV, with carrier density increasing from 7.09 to 8.55 × 1021 cm−3. However, the film electron irradiated at 900 eV showed a decrease in optical band gap energy of 4.16 eV due to the decreased carrier density of 8.25 × 1021 cm−3. The figure of merit revealed that the ZAS thin films electron-irradiated at 900 eV had higher optical and electrical performance than the other films prepared in this study.