밀페공간 내에 가연성가스가 누출될 때 가연혼합기 생성에 관한 이론적 연구

나기대,홍명석,정낙규,박기남 조선대학교 환경공해연구소 1998 環境公害硏究 Vol.14 No.-

Numerical simulation have been conducted to obtain the basic information for the prevention of explosion in a rectangular enclosure with n-Butane(n-C_(4)H_(10)) gas leak. A numerical Model was established to predict the characteristics of flammable mixture formation with the variation of variables: leak location, leak time. leak velocity and aspect ratio. When the gas leaks from the bottom of the rectangular enclosure, the closer the leak location is to the side wall, the faster mass transfer towards the horizontal direction than the vertical direction is as the leak velocity increases, the fuel reaches higher and in the case of the same leak velocity and leak time, mass transfer in the leak direction is less than that in the horizontal direction because of the gravitational force. Aspect ratio of the rectangular enclosure also affects the formation of the flammable mixture proportional to the leak time and the leak velocity.

밀폐공간 내에 가연성가스가 누출될 때 가연혼합기 생성에 관한 이론적 연구

나기대,홍명석,정낙규,박기남 조선대학교 환경연구소 1998 環境硏究 Vol.14 No.1

Numerical simulation have been conducted to obtain the basic information for the prevention of explosion in a rectangular enclosure with n-Butane(n-C_4H_10) gas leak. A numerical Model was established to predict the characteristics of flammable mixture formation with the variation of variables: leak location, leak time, leak velocity and aspect ratio. When the gas leaks from the bottom of the rectangular enclosure, the closer the leak location is to the side wall, the faster mass transfer towards the horizontal direction than the vertical direction is as the leak velocity increases, the fuel reaches higher and in the case of the same leak velocity and leak time, mass transfer in the leak direction is less than that in the horizontal direction because of the gravitational force. Aspect ratio of the rectangular enclosure also affects the formation of the flammable mixture proportional to the leak time and the leak velocity.

고강도 철근콘크리트 부재의 부착특성

申鍾學,河基柱,朴秉基 慶一大學校 1997 論文集 Vol.14 No.2

In this experimental study, thirty-six specimens were constructed and tested to determine bond stress-slip characteristics of reinforcing bar embedded in concrete. Considering actual bond stress-slip relationships in the interface between reinforcing bar and concrete allows for a realistic prediction of cracking. Based on the test observations and the analysis of the test data, the following conclusions are made. (1) Bond stress-slip relationships were found in variance with concrete strength, concrete cover, bar diameter, and bond length, which were very important factors to evaluate the bond characteristics. (2) In this experimental program each specimen were showed the splitting failure, pull-out failure, and bond yielding failure mode due to the combination of design factors through this experimental program. For the high-strength concrete, test specimens, used in small size diameter(D13), were showed in splitting failure with impact sound. And it was also found that the failure mode were difference in the bar diameter. (3) in the same case of concrete strength concrete, it was found that the maximum bond stress was deeply influence in embedded bond length. (4) Maximum bond stress from test results was very higher than values by ACI 318-89 Code. Therefore, ACI 318-89 Code for the bond design was very satisfactory in reinforced concrete structures. It was thought that the optimal formulas of maximum bond stress should be proposed for the optimal design.

21세기 대구 · 경북의 성장 동력으로서 『문화자본』의 의미

권찬태,권기정,김진수,이영기 慶北大學校出版部 2005 經商論集 Vol.32 No.2

본 연구에서는 문화자본의 의미를 바탕으로 대구 · 경북이 본래 가지고 있지만, 활용하지 못하고 있던 문화자본을 대구 · 경북 지역의 성장동력 산업으로 이끌기 위한 전체적인 방향을 제시하고자 하였다. 첫째, 대구 · 경북은 문화의 21세기에서 창조적이고 차별화된 문화자본을 축적하기 위해 지역 내 숨겨진 자원을 발굴하고, 개발해야 한다. 둘째, 사회 · 문화 주동적 성향을 토대로 창의적이고 미래지향적인 문화상품을 개발해 나가야 하고, 세계 속에 대구 · 경북을 알릴 수 있는 대표 브랜드 상품 개발에 주력해야 한다. 셋째, 풍부한 문화유산, 자연환경 등의 유 · 무형의 자원을 최대한 활용하여야 한다. 본 연구에서는 이러한 세 가지 방안의 실천을 위한 행정기관, 기업, 언론 및 교육기관에 따른 방법 또한 제시하였다. 먼저, 지역정부는 문화인프라 구축의 중요성을 인식해야한다. 다음으로, 기업은 문화자본 축적을 비용으로 생각하기보다는 투자로 생각할 수 있는 인식의 전환이 필요하다. 마지막으로, 언론 및 교육기관에서는 선진문화지역으로 도약하기 위한 지역 주민들의 자긍심과 인식이 확대될 수 있도록 도와주어야한다. This paper suggested that the role of cultural capital to be economic growth engine in Daegu and Kyungpook region. Daegu and Kyungpook's role is as followed ; The first, Daegu and Kyungpook should develop and unearth hidden cultural resources, and the second, should develop creative cultural goods based on social and cultural propensity, the third should use the tangible and intangible resources such as cultural inheritance and nature. Besides this, this paper also suggested the roles of local government, local business, local press and local educational institution in Dageu and Kyungpook region. At first, local government should recognize the importance of cultural infrasturcture, the local business needs the concept of cultural capital, and the local press and educational institution should help local citizens have the pride of local culture.

Reference Map of Soluble Protenis from Salmonella enterica Serovar Enteritidis by Two-Dimensional Electrophoresis

김곤섭,Eung-goo Lee,Yong-hwan Kim,정태성,Yong-seung Shin,Gee-wook Shin,Hui-guen Cha,Mi-rim Park 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Map of Soluble Proteins from Salmonella enterica Serovar Enteritidis byTwo-Dimensional ElectrophoresisMi-rim Park, Eung-goo Lee, Yong-hwan Kim, Tae-sung Jung, Yong-seung Shin, Gee-wook Shin, Hui-guen Cha and Gon-sup Kim*Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, KoreaReceived May 17, 2003 / Accepted July 23, 2003J. Vet. Sci. (2003), 4(2), 143-149JOURNAL OFVeterinaryScience*Corresponding author: Gon-sup Kim Laboratory of Veterinary Biochemistry, Collage of Veterinary Medicine, Gyeongsang National University, 900 Gazwa, Jinju 660-701 Korea Tel: +82-55-751-5823, Fax: +82-55-751-5803 E-mail: gonskim@nongae.gsnu.ac.kr

경마 투자의 정당성 확보와 저변확대를 위한 발전방안

권기정 김진수 이미정 청주대학교 사회과학연구소 2005 한국사회과학연구 Vol.27 No.2

The purpose of this study is to demonstrate that horse racing is not gambling but investment. To demonstrate this, we used two methods. the first is logical reasoning three standards; information usage degree, benefit promotion degree, expected revenue degree is used. The second method is questionaire research of university student and professional group. The result of logical reasoning shows horse racing is not gambling but rational investment and the result of questionaire research is general public has blind prejudice that horse racing is a gambling. On the base of these result , this study suggested three step plans to improve and gain public favor in horse racing investment. the first step plan is marketing and education strategy to building human infrastructure in the short term. The second step plan is offering rational and unbiased horse racing investment infomation in the middle term, The last step plan is establish horse racing university to improve and gain scientific reasonableness. 본 연구에서는 투자와 도박을 판단히는 세 가지 기준인 정보의 이용정도, 효익 증대의 정도, 기대수익의 정도를 이용하여 경마가 도박이 아닌 '투자’ 라는 사실을 이론적이고 논리적으로 증명하였다. 또한 전문가와 일반인들의 경마에 대한 인식현황 파악을 위해 이론적 연구와 더불어 전문가 집단과 일반 학생 집단에 대해 간이설문조사를 실시하였다. 설문조사의 결과 대부분의 사람들이 투자와 도박에 대한 일정한 판단기준 없이 단지 ‘선입관’이나 ‘편견’에 따라 경마를 도박으로 보고 있었다. 이러한 이론적이고 논리적인 토대를 바탕으로 본 연구에서는 경마투자의 정당성 확보와 저변 확대를 위한 발전 방안을 3가지 제시하였다. 첫째, 본 연구에서는 단기적으로 인적 인프라를 구축할 수 있는 대 · 내외적인 홍보전략과 교육전략을 제시하였다. 둘째, 중기적으로 투명하고 공정한 경마정보의 제공방안을 정보의 신뢰성, 정보의 공유성, 정보의 차별성, 정보의 통제성, 정보의 적시성 측면에서 상세하게 제시하였다. 셋째, 본 연구에서는 장기적으로 학술장려 및 연구지원을 통해 경마를 새로운 사회과학이리는 학문영역(예, 경마투자론,경마투자학 등)으로 자리잡을 수 있는 방안을 제시하였다. 또한 최종적으로는 경마의 모든 분야를 포함할 수 있는 경마종합대학을 설립함으로써 일반인들에게 정당성과 타당성을 자연스럽게 인정받을 수 있는 학문적인 체계를 구축할 수 있도록 하였다.

영웅소설의 대중소설적 형상화와 의미

안기수 남서울대학교 2004 남서울대학교 논문집 Vol.10 No.3

This paper describes creation techniques and author's consciousness in heroic novel which created in Choson Dynasty. We discuss institution techniques of description structure and theme, configuration techniques of hero, and meaning of theme institution in heroic novel. The institution techniques of description structure accept structure of mythology in former ages and apply institution techniques of hardship structure without defamation of hero's life story. The configuration techniques about people's desire in Choson dynasty well defined in hardship structure. The configuration techniques of hero accept transcendental heroic creation techniques, but it bring abut better relationships between hero who posses absolute ability and realistic person. In institution techniques of theme, mythological hero brings simple theme consciousness 'foundation of nation'. It secures more class of readers by theme configuration following: collapse moral, dispersion or concentration of family, completion love and trouble in Choson dynasty.

MgZnSiN_2 : Eu TFEL 소자의 전기, 광학적 특성 Eu TFEL Devices

장지근,임성규,이순석 단국대학교 1998 論文集 Vol.32 No.-

The Mg_xZn_1-xSiN_2:Eu phosphor was studied as a possible material for thin-film electroluminescent (TFEL) device application. Mg, Zn, Si_3N_4, and EuF_3 powders were mixed and fired at 1400℃ to synthesize the Mg_xZn_1-xSiN_2:Eu phosphor. Photoluminescence characteristics of the synthesized phosphors were measured. Electrical characteristics of the Mg_xZn_1-xSiN_2:Eu TFEL devices were also measured.

율무쌀의 添加가 肉鷄의 成長, 肉質 및 血液像에 미치는 影響

金基元,姜奉泰,文点東,李乙熙 진주산업대학교 1981 論文集 Vol.19 No.-

This experiment was conducted to investigate the effect of added 1%(T1), formular feed+hulled Coix Lacyma L.3%(T2), formular feed+hulled Coix Lacyma L. 5%(T3) and formular feed+hulled Coix Lacyma L.7%(T4), on Water Holding Capacity, Tenderness, PH and Blood Picture for 56 days from July 20, 1981 to September 4, the same year at brooder house, Jinju Agricultural and Forestry Junior Technical College. The results obtained were summarized as follows: 1. Chemical compositions of Coix Lacryma L. were moisture 12.15%, crude protein 14.25%, crude fat 2.0%, crude fiber 12.55%, NFE 53.16% and crude ash 5.07%. 2. Body weight gain was highest in the T3 plot and there were signigicant(p<.05) differences between the others except C, T1 and T4. 3. Feed efficiency and feed intake of T3 were superior to those of all the others and there were significant(p<.05) differences between the others except C1-T1 and T2-T4. 4. Benefit per kg Broiler was highest with 225.76 won in the T3 and next was 216.1 won in the T2 and in the others, was lower than 207.5 won of C plot. 5. As WHC, Tenderness and PH in breast and leg muscle were 58.0:56.6, 110.2: 109.9 and 6.77:6.72, those of breast muscle were slightly high. 6. Means of RBC, Homoglobin and WBC were 252±20.19×10 exp (6)/㎣, 7.5±9.13 gm/ml and 18.1±1.44×10 exp (3)/㎣. 7. Percentages of white blood cell were lymphocyte 60.9±3.09, heterophile, 21.8±3.55, Eosinophile 2.3±1.03, basophile 1.9±07 and monocyte 13.1±2.89%.

고농도 도핑된 n+-Si 영역상에 Co/Ti 이중막 실리사이드의 형성과 특성연구

장지근,신철상 단국대학교 1999 論文集 Vol.34 No.-

We have studied the formation of Co/Ti bilayer silicide with low resistivity and good thermal stability on the heavily As doped n^+-Si region. In this paper, Co/Ti bilayer silicides were fabricated by depositing Co(150Å)/Ti(50Å) films on the As-implanted n^+-Si region in an E-beam evaporator and performing the two step RTA process (first annealing:650℃/20sec. second annealing:800℃/20sec) in a N_2 ambient with the pressure of 10^-1atm, Co/Ti bilayer silicides obtained from our experiments exhibited the low resistivity of about 19μΩ-㎝ and the uniform thickness of about 500 Å without increase of sheet resistance and occurrence of agglomeration under the long post-annealing time up to 1000℃.