HAT-CN과 LCV 전하생성층을 사용하여 제작한 적층형 녹색 인광 유기발광소자의 효율 향상

유병수 한양대학교 대학원 2014 국내석사

디스플레이 시장은 CRT를 시작으로 PDP, LCD를 거쳐 현재 OLED로 발전을 거듭하고 있다. 특히 LCD는 저전력, 대형화, 장수명 등의 장점으로 시장을 점유해 왔지만 소형 디스플레이의 시작으로 OLED의 저전압, 빠른 응답속도, 높은 휘도, 넓은 시야각, 초박막의 장점을 통하여 대형 전색 디스플레이로 상용화되기 위해 많은 연구가 진행되고 있다 [1-5]. 하지만 유기발광소자는 아직까지 상업적인 디스플레이 소자와 비교하면 낮은 효율을 가지고 있다. 이러한 문제점을 극복하기 위하여 적층형 유기발광소자(Tandem OLED)를 사용하여 효율, 휘도, 소자의 수명과 발광 스펙트럼의 변화를 줄 수 있는 장점이 있다 [6-10]. 이에 본 연구에서는 p-type HAT-CN과 n-type LCV를 사용하여 charge generation layer(CGL)을 구성해 적층형 유기발광 소자를 제작하여 전기적 광학적 특성을 분석하였다. 유기발광소자의 양극으로는 투명전극으로 널리 쓰이고 있는 ITO를 사용하였고 정공 주입층과 p-type CGL에 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN)을 사용하고 n-type CGL에 4,4′,4′′-methylidynetris(N,N-dimethylaniline) (Leucocrystal Violet; LCV)를 전자수송층에 도핑하여 사용 하였다. 정공 수송층에는 N,N’-diphenyl-N,N’-bis(1-naphthyl)-(1,1’-biphenyl)-4,4’diamine (NPB)를 사용하였고, 전자수송층에는 4-7-diphenyl-1,10-phenanlhroline (BPhen)을 사용하였다. 엑시톤 차단 물질로는 Tris(4-carbazoyl-9-ylphenyl)amine (TCTA)를 사용하여 엑시톤 확산을 막아 효율을 높이고, 녹색 유기발광소자를 구현하기 위해 발광층에는 4,4′-Bis(N-carbazolyl)-1,1′-biphenyl (CBP)를 호스트로 사용하고 fac-tris(2-phenylpyridine)iridium (Ir(ppy)3)를 도펀트를 사용하였다. 전자 주입으로는 8-hydroxy-quinolinato lithium (LiF)를 사용하고 음극으로는 Al을 사용하면서 HAT-CN 물질을 CGL층으로 구성한 소자와 LCV와 HAT-CN을 같이 이용한 소자를 구성하여 CGL의 특성에 따라 전류밀도-전압, 휘도-전압의 특성을 알아 볼 수 있다. 본 논문에서는 p-type과 n-type물질을 이용하여 적층형 녹색 유기발광소자의 구동전압을 줄이고 효율을 향상 시켜 소자의 안정성과 전색 디스플레이에 응용 될 수 있다는 것을 확인하였다.

都市鑛山 廢棄物로부터 有價金屬 회수 plasma 溶融技術에 관한 연구

유병수 전주대학교 일반대학원 2017 국내박사

In order to recover metal resources from urban mines, consideration should be given not only to the recovery of metals but also to the environmental problems that arise during treatment. Most of the urban mines are mixed with polymeric materials, minerals, and metals, making it difficult to separate metal resources, Recycling of metal resources from these urban mines has been done mostly for wet process. Despite of the many advantages of the dry process, it is difficult to secure the relevant technology, and it is applied in a very limited part of the metal resource recovery process. Urban mines are merely waste if they do not recover valuable metals. The serious shortage of landfill and the treatment of environmental pollutants are becoming global social problems, As a partial solution to this problem, a method of reducing the volume by burning and reducing the volume of the metal resources by using the melting process is used, but the object is very limited. Obtaining technology related to the recycling of waste metal resources is very urgent, The dry smelting method has advantages such as minimizing environmental pollution and solving shortage of landfill. One of the dry smelting methods, plasma melting technology, also concentrates and recovers highly efficient metal resources, It can be treated environmentally harmlessly and stably, and it has attracted much attention because of the advantage that energy can be recovered. In this study, plasma melting technique was used. the goal was to secure core technology of plasma melting process, which is a dry smelting method which can effectively recover valuable metals from PCB(PC). The results of the plasma melting test for recovering valuable metals from PCB(PC) were summarized as follows : 1) Pyrolysis melting system with plasma torch for recovering valuable metals from PCB(PC) was designed and installed for this experiment. 2) Plasma torch with capacity of 700kW was designed and tested at transferred operating mode. 3) The crushed PCB(PC) were charged in pyrolysis melting chamber and treated with plasma jet at treatment between 1500℃ and 1600℃. - In plasma pyrolysis melting test the organic components of PCB(PC) were decomposed and contributed to increase temperature in pyrolysis chamber. - After plasma melting test Cu and the other valuable metals(Au, Ag) were separated and accumulated in liquid base metal(Cu). - Other non-combusible solids like as glass were used in making liquid slag. 4) The pyrolysis melting test were achieved continuous more than 500hr this designed plasma system. 5) In this plasma melting test the valuable metals like as Cu, Au and Ag form PCB(PC) was recovered more than 95%. 6) The achieved results allow one to conclude that all valuable metal from PCB(PC) will be easily recovered and accumulated in base metal(Cu or Fe) by plasma melting process. 7) Plasma melting technology has been shown to be very beneficial for recovering valuable metals from PCB(PC), reducing the volume of waste, and environmentally stable treatment.

前置詞 'On'에 대한 小考

유병수 慶南大學校 1988 국내석사

목회에 있어서 인간관계에 대한 연구

유병수 서울신학대학 1987 국내석사

공동주택의 하자판단과 기준도면에 관한 연구

유병수 광운대학교 대학원 2016 국내석사

A "defect" of an apartment building refers to a case where “an apartment house fails in terms of quality or property normally expected for such a house based on the specific purchase agreement or house construction standards under the Housing Act". The Supreme Court of Korea ruled that presence of a "defect" shall be decided based on “the contract between the parties, compliance with design and construction requirement and suitability in terms of standards provided in housing-related acts”. However, despite such standards for decision making, in reality, there have been severe conflicts among the parties and the courts. The conflict arise as there is no statement on design drawings as the basis to decide presence of a defect in most of the apartment house transaction contracts, there is no separate agreement, and there is absence of prescription pertaining to such design drawings in the related laws such as the Civil Law, the Aggregate House Act and the Housing Act. The ruling of the Supreme Court of Korea pertaining to “Ansan Gojan Green Ville” says: ① the contract between the seller and the buyer does not provide “any prescription or explanation that the construction and its methods in the business plan or construction plan shall be abided by", ② there is no description in the guideline provided by the seller to the buyer that there will be inclusion in the transaction contract. Based on these reasons, the Supreme Court of Korea ruled that “completion drawing” should be the standard drawing for determination of defects. This means that even if an aggregate house including an apartment house has been constructed differently from the approved business plan or the construction drawing while the construction has taken place based on the completion drawing, it shall be considered that there is no defect. The Supreme Court of Korea applied the contract theory of the Civil Law to make a point that the standard drawing to determine a defect should be the “completion drawing”. The author of this paper agrees to the court conclusions made under the conditions that it shall be checked whether there has been an agreement or any special matter on the standards to determine a defect between the developer as the party to the contract ("developer" shall cover the "businesses", "contractors" and "sellers".) and the person buying an apartment house shall be checked and existing customs of constructors and circumstances at the point of the contract entered by the buyer shall be considered comprehensively. This is also based on the perspective relying upon the Supreme Court of Korea rulings that all matters presented in the advertisements that are considered only to be 'the matters inducing subscription' are not considered to be the transaction contract content but the content is implicitly included under certain conditions while recognizing the needs to protect the rights of the buyer. If applying the Supreme Court of Korea Ruling prior to shifting to the conditions to implicitly include the matters provided in the transaction advertisement in the transaction contract, despite the contract law theory, it shall be regarded that inclusion has taken place when there is no special matter to be considered in the advertisement, approved business plan or construction plan. The ruling pertaining to “Ansan Gojan Green Ville” takes the stand that the completion drawing shall be the standard drawing to determine presence of a defect based on the reason that the construction drawing does not belong to the transaction contract. This can be understood that the conclusion conforms to the contract law theory of the Civil Law while not completely ruling out the possibility that the construction drawing can be implicitly included in the transaction contract. In order to solve the problem that there is no written prescription on the standards to determine a defect in the contract entered by the developer and the buyer, the author recommends that it shall be clearly stated in the transaction contract or advertisement that the standard drawing shall be the "completion drawing". Otherwise, a written arrangement titled "Matters of Confirmation for Contract" stating upon entering the contract that “the contract is entered based on the following statement that any special arrangement made orally or in writing with the consultant during counseling shall not be effective regardless of the content”. Such a written statement shall be collected from the buyers so that relevant conflicts can be prevented. 공동주택에서 “하자”란 “분양된 아파트가 당사자의 특약에 의하여 보유하거나 주택법상의 주택건설기준 등 그 주택이 거래상 통상 갖추어야 할 품질이나 성질을 갖추지 못한 경우를 말하며, “당사자 사이의 계약내용, 해당아파트가 설계도대로 건축되었는지 여부, 주택관련 법령에서 정한 기준에 적합한지 여부”등 여러가지 사정을 종합적으로 고려하여 “하자” 여부를 판단한다는 것이 대법원의 입장이다. 그러나 이러한 일응의 판단기준에도 불구하고 실무상으로는 하자판단의 기준도면과 관련하여 소송 당사자간, 하급심 재판례 간 대립이 심하였다. 이러한 대립의 기저에는 하자판단 기준도면에 관하여 대부분의 아파트 분양계약서에 하자판단의 기준이 되는 설계도면에 관한 아무런 기재가 없고, 별도로 합의된 경우도 없으며, 하자 관련 법령인 민법, 집합건물법, 주택법 등 어디에도 하자판단의 기준이 되는 설계도면에 관하여 아무런 규정을 두고 있지 않다는 사정이 존재하였다. 이에 대법원은 이른바 “안산고잔 그린빌” 사건 판결에서 ① 분양자와 수분양자 사이에 체결된 분양계약 내용에 사업승인도면이나 착공도면에 기재된 시공내역과 그 시공방법대로 시공할 것을 제시하거나 설명한 사실이 없다는 점, ② 분양자가 수분양자에 대한 분양안내서에 별도로 표시하여 분양계약에 편입하겠다는 사실이 없는 등 특별한 사정이 없는 점을 사유로 하자판단 기준도면은 “준공도면”이라고 판단하였다. 즉 아파트 등 공동주택이 사업승인도면이나 착공도면과 다르게 시공되었더라도 준공도면에 따라 시공되었다면 특별한 사정이 없는 한 이를 하자라고 볼 수 없다는 것이다. 대법원은 하자판단의 기준도면이 “준공도면”이라는 것을 이끌어 내기 위하여 민법의 계약법 이론을 적용하였으며, 분양계약의 당사자인 시행사(이하 일괄하여 “사업주체”, “도급인”, “분양자” 등을 모두 총칭하는 의미로 사용한다)와 수분양자 사이에 하자판단의 기준에 관한 합의 또는 특수한 사항이 있었는지 여부를 확인하고, 건설회사의 기존 관행, 수분양자의 분양계약 당시의 사정 등을 종합적으로 고려하여 위와 같은 결론에 이른 것에 대하여 본 연구자도 이에 찬동한다. 이는 수분양자의 권리를 보호할 필요성을 인정하면서도, 일반적으로 “청약의 유인”에 불과하다고 이해되는 분양광고에 나타나는 모든 사항을 분양계약의 내용으로 보지 않고 일정한 요건 하에 분양계약의 내용이 묵시적으로 편입된다고 보는 종래의 대법원 판례와의 균형의 관점에서도 그러하다. 분양광고 등에 기재된 일정한 사항을 묵시적으로 분양계약에 편입하기 위한 요건으로 변경 전 대법원 판례를 따를 경우에는 계약법 이론에도 불구하고, 분양광고나 사업승인도면 및 착공도면의 내용에 특별한 사정이 없음에도 분양계약에 편입한 것으로 볼 수도 있으나, “안산고잔 그린빌” 사건 판결은 착공도면이 분양계약에 편입되지 못함을 이유로 하여 하자판단의 기준도면은 준공도면이 되어야 한다는 입장이므로, 이는 묵시적으로 착공도면이 분양계약에 편입될 가능성을 전적으로 배제하지 않으면서도 민법상 계약법 이론에 부합하는 결론이 되었다고 평가 할 수 있다. 하자판단의 기준도면에 관하여 시행사와 수분양자 간의 계약내용에 하자판단 기준에 관한 명문 규정이 존재하지 않는 문제점을 해결하기 위하여, 분양계약서나 분양광고에 하자판단의 기준도면은 “준공도면”이라는 점을 명시적으로 표시하거나, 분양계약을 체결하면서 “본 계약서의 내용 외 분양상담시 분양요원과 구두 또는 서면으로 이루어진 특약은 어떠한 내용이라도 효력을 주장할 수 없음을 인정하고 이 계약을 체결한다”는 내용으로 “계약체결시 확인사항”이라는 제목의 서면을 작성하여 수분양자들로부터 이를 교부받아 이와 관련한 분쟁을 사전에 예방하는 방안을 제안한다.

Assessment of applicability to estimate shear strength parameters of weathered rock by field tests

유병수 서울대학교 대학원 2018 국내석사

A weathered granite is distributed broad area in Korea. It is used base of support for a deep foundation in Korea. However, determining of material properties of the weathered granite is very difficult. Sample recovery of weathered granite is hard because it is easily broken and losing its rock structure during coring or drilling. Present research try to determine reasonable shear strength parameters, cohesion and internal friction angle of the weathered granite in Korea by field tests, pressuremeter test (PMT) and borehole shear test (BST). Moreover, present study try to assess applicability of these. Present study estimate shear strength parameters from PMT, BST, lab tests. The whole test results from PMT, BST, lab tests, and previous research are compared. Tests results performed in this study are not corresponded within themselves. Lab test results are considered as a true value for comparison of each results.

黃連類의 效能과 Berberine含量에 關한 硏究

유병수 慶熙大學校 1992 국내박사

담지된 4급 암모늄염 촉매를 이용한 DOMA의 합성에 관한 연구

유병수 釜山大學校 大學院 2003 국내석사

In this work, the catalytic conversion of carbon dioxide, a global warming gas, to useful chemical materials was studied. We paid attention to the addition reaction of epoxide and carbon dioxide to 5-membered cyclic carbonate using quaternary salt catalysts. Especially, our studies are focused on the synthesis of (2-oxo-1,3-dioxolan-4-yl)methacrylate(DOMA) using polymer-supported quaternary ammonium salt catalysts. Soluble polymer-supported catalysts containing pendant quaternary ammonium salt residues were synthesized by the radical copolymerization of vinylbenzyl chloride(VBC) with styrene(ST). The poly(ST-co-VBC)-supported catalyst, prepared with 10 mol% of VBC and quaternalized by tributyl amine, showed the highest catalytic activity in DMF and DMAc. The kinetic study revealed that the reaction rate followed first order kinetics with regard to the concentration of glycidylmetacrylate(GMA). Insoluble polymer-supported catalysts containing benzyltrialkylarnmonium chloride moieties which were prepared by partial copolymerization of ST and divinylbenzene(DVB), and then copolymerization with VBC[C2]. In order to get large pores inside the polymer, isooctylalcohol(i-OctOH) was added in the step of partial polymerization[C3]. Higher amount of i-OctOH offered higher pore size for this type of catalyst. Montmorillonite supports containing pendant poly(ST-co-VBC) were prepared by grafting the copolymer of styrene(ST) and vinylbenzyl chloride(VBC) onto montmorillonite interlayers, followed by the quaternization using tributylamine. The poly(ST-co-VBC)-montmorillonite immobilized catalyst showed slightly lower catalytic activity than soluble polymer catalysts. Organically modified MCM-41 catalysts containing pendant quaternary ammonium salts residues were prepared by hydrothermal synthesis of TEOS, CTMABr, CIPDMMS, TMAOH, H_(2)O. The highest catalytic activity was obtained in the case of the catalyst prepared by 37.5 mol% of CIPDMMS, quaternalized by tributylamine. Macroporous poly(ST-DVB-VBC) catalyst[C3] showed high rate constant than the C2 catalyst, prepared without use of i-octylalcohol. Macroporous structure seems to favor the diffusion of GMA to the active site. And poly(ST-co-VBC)-MMT supported catalyst showed higher rate constant than Cl-propyl-methyl-MCM-41 catalyst. Even though the poly(ST-co-VBC)-MMT catalyst[C4] had lower surface area than the Cl-propyl-methyl-MCM-41 catalyst[C5], The pendant quaternary ammonium groups of C4 catalyst might be more easier for their contacts with GMA molecules. The stability of the catalysts was tested by reusing them four successive times after separation from the reaction mixture at each experimental run. Insoluble catalysts were easily separated. However, the soluble poly(ST-co-VBC) was separated by precipitation in diethylether. All the catalysts maintained their catalytic activities showing less than 12 % loss of initial activity after 4th runs.

지방교육재정의 확충방안에 관한 연구 : 충남교육재정의 중심으로

유병수 공주대학교 경영행정대학원 2010 국내석사

Human resource development is leading the 21st century. The age of limitless competition which is really important in modern information society for national competitiveness. So regular and secure educational finance is an urgent matter for nurturing the competent talents and improving the national competitiveness. But looking at the recent economic trends, economic situation is not good because of delaying of improving export environment due to the decreasing import demand of advanced countries, worsening payability of exports due to the rising value of the won. Also weak domestic demand and delayed investment recovery, owing to the bad condition of employment and profit conditions are making the situation worse. In addition, finance increment is no match for increasing the educational finance demands like the field of personnel expenditures and founding new school. And the structure of local finance couldn't be improved much because it largely depends on the national support expense. Therefore, this study aims to suggest the way of securing the source of revenue for Chungnam educational finance. Preparing the increasing demand of educational finance by throughly analyzing and researching the actual condition of the local educational finance system. For this aim of study, I consider the theory and background of local educational finance. Also I analyzed the actual condition of local educational finance, especially Chungnam educational finance and the characteristic is below. First, reliance ratio of local government burdened by the general account is too small to reach 50%. (National average : 53.6%) Second, the outside dependency on finance of Chungnam educational finance from the country and Chungnam province was 85.2% in 2009. It was really high. Third, educational supported expense from local government, like city and county, to every school is not supporting balanced. Fourth, considering the limitedness secure expense in office of education and quasi-public aspects of public education, public educational organization has a certain limitation to increase their payment by beneficiary like income from interests, rent, fees, and so on. The characteristics mentioned above, are the suggested the policy alternatives needed in order to expand the Chungnam local educational finance. First, except existing local government educational expense support,「Educational cooperation organization」 and 「Educational development organization」 are necessary to do their best in order to make educational cooperation, like establishing an ordinance 「Supporting educational expense for high school dormitory」. Second, legal capital transfer has to be paid in suitable time for managing deliberately and stably for the local educational finance Third, BTL(Build Transfer Lease) makes possible to build educational facilities in right time although educational finance is hard to secure properly at this stage. And a private enterprise constructs the educational facilities and takes charge in management and maintenance. So it can be safe from the poor construction. And in case of constructing new school, BTL is really effective because the construction can be completed before the scheduled school opening. Also BTL can reduce expense. Fourth, interest rate is really low these days. So we need to increase the interest rate of deposit and encourage to pay unpaid tuition in order to secure the self economic finance. Fifth, these plans for expanding the educational cooperation with Chungnam province is needed. 1) 「After School Program for English」in rural areas. 2) 「Overseas Internship Program」 for specialty high school. 3) 「Choong Mu school Program」for educating their personality to youth. 4) 「Studying abroad」, scholarship program supported by Chungnam province for college students 5) 「Cheongyang University」, Chungnam provincial college.

영어 양화사의 의미 분석

유병수 慶南大學校 1996 국내박사