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.

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.

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.

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.

가족주기에 따른 부부적응의 변화

이기숙 新羅大學校 1984 論文集 Vol.17 No.-

This study was devised to research the changes on marital adjustment over the family life cycle(FLC). Marital Adjustment Scales were composed of three subfactors such as Consensus, Sexual intimacy and Satisfaction with the marriage and mate. The number of the subjects were 430, who were living in Pusan and they divided into six stage family life cycle. This study was surveyed by Mean scores on marital adjustment and three subfactors and tested by ANOVA for one-way and Pearson correlation. The results were as follows: 1. The changes on marital adjustment over the FLC categories were significant at P=.005 2. The changes on consensus over the FLC categories were significant at P=.001 3. The changes of sexual and affectional intimacy over the FLC categories were significant at P=.0001 4. The changes on satisfaction with the marriage and mate over the FLC categories were significant at P<.05 5. There was a highly correlation between marital adjustment and its subfactors at P=.001) 6. The nature of the trend of marital adjustment over the FLC was a significant orgive curvilinear or ∽-shaped mode.

자폐아의 치료교육에 관한 일 연구 : 자폐아의 치료교육 사례를 중심으로 with a case of the Therapeutic Education for Autistic Children

안지연,박인전 영남대학교 지역발전연구소 1997 새마을지역개발연구 Vol.20 No.-

This study is a case-study about a part of the autistic children that research workers directly enforced therapeutic education for them. In this study, as a procedure of therapeutic education for the autistic children, the parents with an autistic child were interviewed and the-autistic children were individually evaluated. Next, we set up the plan for therapeutic education and performed the education for them. In conclusion, through this study, the importance of the parent education program was again emphasized. Besides, the close mutual cooperation of every facilities related to the therapy was actively demamded.

FAH-전지의 효율파라미터에 대한 광세기 및 온도특성

장지근,김장기,김민영 단국대학교 신소재기술연구소 1991 신소재 Vol.1 No.-

위성전원용 태양전지로 사용할 수 있는 새로운 구조의 FAH-전지로부터 효율파라미터 특성이 입사 광전력의 세기(I=20∼1000 mW/㎠)와 온도 (T=0∼140℃)에 따라 어떻게 변화되는가를 측정하고 이 결과를 분석하였다. 일정한 온도(T=30℃)에서 광세기가 증가할 때 FAH-전지의 개방전압(V_oc)은 20∼200 mW/㎠ 범위에서 v_oc=0.66+0.067·log(I/20) [V]로, 200∼600mW.㎠ 에서는 V-oc=0.727+0.04·log(I/200) [V]의 관계로 증가하는 특성을 나타내고 600 mW/㎠ 이상에서는 0.75 [V]로 포화되었다. 충실도(F·F)는 100mW/㎠ 이하에서 F·F=0.815∼0.0858·log(I/20)으로, 300 mW/㎠이상에서는 F·F=0.65∼0.5164·log(I/300)의 관계로, 광세기에 따라 감소하는 특성을 보였다. T=30℃일 경우 전지의 효유(EFF.)은 100mW/㎠이하의 광세기에서 거의 일정한 값으로 나타나고(EFF.≒EFF_*ref=EFF.|I=100 mW/㎠) 300mW/㎠ 이상의 광세기에서는 EFF.=Eff_*ref·[0.9-0.412·log(I/300)]로 효율이 급격히 저하되었다. 또한 일정한 광세기(I=100 mW/㎠)에서 단락전류(I_se는 온도가 증가함에 따라 단조증가하며 T<30℃에서 dI_se/dT=0.0006 mA/℃로 나타났다. 개방전압의 감소율은 전체 측정온도 범위(T=0∼140℃)에서 dV_oc/dT=-0.002 V/℃로 나타났으며, 충실도(F·F)는 T=0∼20℃, 20∼90℃, 90∼140℃의 각 영역에서 -0.275%/℃, -0.1357%/℃, -0.1 %/℃의 율로 감소하였다. 전지의 효율은 T=30℃의 갑(EFF. |T=30℃=EFF.ref)을 기준할 때 T<20℃에서 EFF.=EFF.ref·[1-0.0034·(T-30)]의 관계로 나타나고 그 이하의 온도에서는 효율이 1.05·EFF.ref의 값으로 포화되는 현상을 보였다. The effect of light intensity(I=20∼1000mW/㎠) and temperature(T=0∼140℃) on the efficiency parameters of a new FAH-solar cell is exeprimentally and theoretically investigated n this paper. Under the constant temperature(T=30℃), the increase of light intensity gives the open circuit voltage(V_oc) varing with the relation of 0.66+0.067·log(I/20) [V] and 0.727+0.04·log[I/200] [V] in each range of I=20∼200[mW/㎠] and I=200∼600[mW/㎠]. The open circuit voltage is, however, nearly saturated to 0.75[V] above 600[mW/㎠]. The fill factor is decreased with the relation of 0.815∼0.0858·log[I/20] below 10[mW/㎠ and 0.65-0.5164·log[I/300] above 300[mW/㎠]. The conversion efficiency(EFF.) shows the constant value of EFF-*ref=EFF.|_I=100mW/㎠ below 100[mW/㎠], but decreases with the relation of EFF.=EFF_*ref·(0.9-0.412·log[I/300]) above 300[mW/㎠]. Under the constant light intensity(i=100mW/㎠), the increase of temperature gives the short circuit current increasing with the rate of dI_sc/dT=0.0225[mA/℃] below 30[℃], and dI_sc/dT=0.006[mA/℃] in the range of 30∼140[℃]. The open circuit voltage is decreased with the rate of dV_oc/dT=-0.002[V/℃] The fill factor is decreased with the rate of -0.275[%/℃], -0.1357[%/℃], and -0.1[%/℃] in the ranges of 0∼20[℃], 20∼90[℃], and 90∼140[℃], respectively. The conversion efficiency is decreased with the relation of EFF.=EFF_*ref'·[1-0.0034·(T-30)] above 20[℃], and saturated to 1.05 EFF_*ref' below 20[℃].

산업화, 정보화와 가족의 변화

이기숙 新羅大學校 1992 論文集 Vol.34 No.1

Now the Korea society stands on the post-industry society and a partial of the Korean society is already going into the information-oriented society. The older generation has been living through the system of the industrialization, but the younger will be living in the systems of information-oriented society. The furture family life will be the another image that varies from the family life of the agricultural and industry society. Thus, social issues regarding the changes of family life that relates to women's role change and change of family structure are of great importance. This study deals with the family tasks which the Korean family must overcome to meet the needs of the changing society and the family tasks which the Korean family must prepare to adapt to the advanced family. The Korean family of today, despite of the processes of social change, is dominated by the patriarchal myth. The Korean family is faced with the dual lagging phenomena resulting on the one hand between changes in society and values, and, on the other hand, between the internal family structure and value changes. I can foresee that the issues and problems for the family with information-oriented will be serious. These issues and problems must be dealt with as social issues rather than personal ones. With these status of Korean family, the following recommendations are made:1. Equalization of marital relation and the sharing of domestic chores and social roles among family members are essential in order to identify the advanced family life. 2. Before embarking on distinctions between sexes in the national policies, society and family, individual family should set their own goals and methods on the child(ren) education that fit their capabilities and needs and views on androgynous humanity. 3. Family welfare works and policies are developed by the Nation in order to establish the future-welfare society.