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Won, Hyun Kyu,Jeon, Hyon Sun,Han, Hee,Lee, Seung Jung,Jung, Byung Heon Institute of Forest Science 2017 Journal of Forest Science Vol.33 No.4
This study was aimed to analyze the increased forestry incomes by combining timber production and wood processing, which is one of 6th industrialization types in Korean forestry. The selected household has been engaged in forestry for two generations and they produce timber and associated wood products in their own facility. The wood products include dimension lumber, interior wood material, cutting board, and cube chips, the household also utilize logging and sawmill residues as well as seed and seedlings as by-products. Incomes and expenses that have been incurred on individual processes of the sequential timber production and wood processing were surveyed, and we analyzed the economic outcomes of entire business. The results of this study indicate that the gross income of the household is 122.3 million Korean won and the net income is 93.6 million Korean won. The net income of the household is approximately 2.8 times higher than the average net income of whole households in the forestry of Korea in 2016, which is approximately 4.3 times higher than that of households that have been particularly engaged in timber production over the country. We found that the 6th industrialization by combining the two sequential processes creates approximately 3.2 times as much added value compared to the case relying on timber production only.
Hyun Kyu Won,Hyon Sun Jeon,Hee Han,Seung Jung Lee,Byung Heon Jung 강원대학교 산림과학연구소 2017 Journal of Forest Science Vol.33 No.4
This study was aimed to analyze the increased forestry incomes by combining timber production and wood processing, which is one of 6th industrialization types in Korean forestry. The selected household has been engaged in forestry for two generations and they produce timber and associated wood products in their own facility. The wood products include dimension lumber, interior wood material, cutting board, and cube chips, the household also utilize logging and sawmill residues as well as seed and seedlings as by-products. Incomes and expenses that have been incurred on individual processes of the sequential timber production and wood processing were surveyed, and we analyzed the economic outcomes of entire business. The results of this study indicate that the gross income of the household is 122.3 million Korean won and the net income is 93.6 million Korean won. The net income of the household is approximately 2.8 times higher than the average net income of whole households in the forestry of Korea in 2016, which is approximately 4.3 times higher than that of households that have been particularly engaged in timber production over the country. We found that the 6th industrialization by combining the two sequential processes creates approximately 3.2 times as much added value compared to the case relying on timber production only.
Jung‑Hun Lee,Min‑Su Park,Hong‑Seon Ahn,Kyung‑Won Park,Jun‑Seok Oh,Seung‑Gyu Jeon,Dong‑Kyu Kim,Jae‑Eon Kim 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.4
When large scales DG are connected to the distribution system of unidirectional power currents, bi-directional power currents are formed, making it impossible to use conventional overcurrent protection methods alone to detect and isolate fault sections for ground and short-circuit faults. To solve these problems, this study proposed the method of protection against single-line-ground fault of common neutral line multi-contact local power distribution system using distance relay and directional relay. The proposed protection method was applied to the common neutral multi-ground distribution system to validate the protection against single-line-ground fault through the PSCAD/EMTDC software package and efectively detect and isolate only the zone of single-line-ground fault without malfunctions.
전원선,이상철,김현정,배상병,김찬규,이남수,박노진,이규택,박성규,홍대식,박희숙,원종호 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.2
Thymoma is associated with myasthenia gravis, Pure red cell aplasia, and autoimmune diseases such as autoimmune hemolytic anemia, aplastic anemia, and hypogammaglobulinemia. It's association with aplastic anemia is rare and aplastic anemia appearing after surgical removal of thymoma is especially rare. The authors hereby report a case of aplastic anemia occuring in a patient who was diagnosed with thymoma and myasthenia gravis and had the tumor surgically removed. The patient was treated with anti-thymocyte globulin, cyclosporin, and prednisolone, and showed partial remission with hematologic improvements after 12 months.
Southern Blot Hybridization법을 이용한 악성 림프종의 면역유전형에 관한 연구
전호종,기근홍,김윤신,이미숙,이미자,장원재,장숙진,박영진,정춘해,정종훈,양성훈,이광민 조선대학교 1994 The Medical Journal of Chosun University Vol.19 No.2
Immunogenotyping using gene rearrangement analysis has emerged as a precise laboratory aid in the diagnosis and classification of malignant Iymphoid neoplasms. The lineage and clonality of the malignant Iymphoid neoplasms can be identified by the demonstration of rearrangements of antigen receptor genes of the immunoglobulin and T-cell receptor genes. The analysis of the gene rearrangements on the malignant Iymphoid neoplasms are also useful as a sensitive unique clonal markers to detect early recurrence in patients with malignant Iymphoid neoplasms after treatment. To analyze the sensitivity and specificity of gene rearrangements in the diagnosis of malignant Iymphoid neoplasms. 24 cases of malignat Iymphoma were examined by Southern blot hybridization using CTβ-T cell receptor β chain gene-DNA probe and JH-immunoglobulin heavy chain gene-DNA probe. The results of the immunogenotypings using Southern blot hybridization disclosed high correlation between the immunophenotyping using immunohistochemical stain with monoclonal antibodies (B-cell Iymphoma 84.2%. T-cell Iymphoma 75% ). The analysis of the gene rearrangement of the angioimmunoblastic lymphadenopathy(AILD) and unclassifiable Iymphoma using immunohistochemical stain could resolve the monoclonality and lineage . Rearranged bands to the CTβDNA probe were observed in one case out of 2 cases of AILD. One case of unclassifiable Iymphoma showed rearranged bands to the CTβ DNA probe. There were no rearrangements in reactive follicular Iymphoid hyperplasia and paracortical Iymphoid hyperplasia. In conclusion, DNA gene rearrangement study should be applied to differentiate the clonality and cell lineage in the malignant Iymphoma with indistinctive immunophenotype.
COBOL 레거시 시스템의 재사용을 위한 효율적인 트리 개발
전하용,최원호,정민수 慶南大學校 附設 工業技術硏究所 2003 硏究論文集 Vol.21 No.2
최근 컴퓨팅 환경이 변화함에 따라 현재 운용되고 있는 레거시 시스템을 객체지향이나 웹 환경과 같은 새로운 환경에서도 운용할 수 있도록 시스템을 현대화하고자 하는 연구가 활발히 진행되고 있다. 특히, 설계 패턴, 프레임워크 등의 소프트웨어 재사용 기술과 함께 컴포넌트 기술이 개발, 보급됨에 따라 레거시 시스템을 컴포넌트로 변환하거나 연계하는 방법들이 연구되고 있다. 본 논문은 IBM 메인 프레임에서 운용되고 있는 CICS 및 SQL 코볼 시스템을 EJB 래퍼 컴포넌트로 연계하는 일련의 프로세스를 지원하는 연계 도구로서 입력된 코볼 소스코드를 어휘분석과 구문분석을 통하여 새로운 형태의 효율적인 트리를 구성한다. 효율적인 트리를 통해서 코볼 소스코드를 객체지향의 컴포넌트로 쉽게 변환할 수 있게 한다. As changing of computer systems, there are many researches about legacy-system available to new environment like object-orient technology or web environment. Specially, many converting or linking method about legacy-system have been studied, because not only software reusing technologies of design-pattern and frameworks but technologies about components are supported. This paper contains the linkage-tool that supports CICS and SQL COBOL system with EJB wrapper components. We also propose an AST-based parser which analysis input COBOL source code, and generates formatted AST tree. COBOL source-code are changed to new formatted efficient tree. From the above AST, we can systemertiaclly convert COBOL legacy systematically into object-oriented componet.
C₄유분을 이용한 옥텐류의 합성에 있어서 1,3-Butadiene의 함량에 따른 이량화 촉매의 수명에 관한 연구
전종기,한원희,조정호,고승태,노상균 동양대학교 2001 동양대학교 논문집 Vol.7 No.1
Selective hydrogenation of 1,3-butadiene in C4 raffinate was carried out in fixed bed reactor using Pd/a1unina catalysts, Concentration of 1,3-butadiene in C4 raffinate could be reduced under 100 ppm.The life of dimerization catalyst using C4 raffinate after selective hydrogenation was longer than that of dimerization catalyst without selective hydrogenation.It was found that dilution of olefin concentration in feed was effective to increase dimerization catalyst life.
여대생의 족적 형상에 의한 발의 형태 분석 : 울산 대학교 여대생을 대상으로
한현정,감원연,전은경 울산대학교 2006 생활과학논문집 Vol.7 No.2
본 연구의 목적은 여대생의 족적 형상에 의한 다양한 발의 형태를 분석하는데 있다. 연구를 위해 울산대학교 여학생 46의 발 형상은 스캔법을 통해 측정하여 발바닥 형태를 분석하였다. 여대생의 발 형태 분석을 통해 평족, 발가락의 변형동과 같은 방의 장해를 발견할 수 있었다. 이상의 결과는 여대생에 대해 보다 광범위하고 포괄적인 발의 측정 및 분석이 필요함을 시사한다. The purpose of this study is to identify foot shapes of young women by various classification of their foot print types. 46 women's foot print data were obtained by using a scanner in University of Ulsan and were analysed by visual judgement. We found several troubles like flatfoot and toe deformation from analysis of subjects' foot prints. This suggests that extensive measurement and accurate analysis about the foot shapes of college-girls should be done.