황토골재를 사용한 콘크리트의 제특성에 관한 실험적 연구

황준필 ( Hwang Jun Pil ),김기범 ( Kim Ki Beom ),안기용 ( Ann Ki Yong ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.2

For the characteristics of the concrete using Hwang-Toh aggregate, thermal Insulation capacity test, absorption capacity of heavy metals several test were performed. The study found that the Hwang-Toh concrete could improved the characteristics of conventional normal concrete. The Hwang-Toh concrete shows 67.7% lower thermal conductivity than normal concrete, so it shows good thermal insulation capacity. And the leaching test results showed that 96% of heavy metals such as Pb, Zn, Mn were absorbed by the Hwang-Toh concrete.

황토골재를 사용한 콘크리트의 제특성에 관한 실험적 연구

황준필(Hwang, Jun Pil),김기범(Kim, Ki Beom),안기용(Ann, Ki Yong) 한국구조물진단유지관리학회 2009 한국구조물진단학회 학술발표회논문집 Vol.2009 No.2

For the characteristics of the concrete using Hwang-Toh aggregate, thermal Insulation capacity test, absorption capacity of heavy metals several test were performed. The study found that the Hwang-Toh concrete could improved the characteristics of conventional normal concrete. The Hwang-Toh concrete shows 67.7% lower thermal conductivity than normal concrete, so it shows good thermal insulation capacity. And the leaching test results showed that 96% of heavy metals such as Pb, Zn, Mn were absorbed by the Hwang-Toh concrete.

FDM에서 경사면의 표면과 면적오차법의 관계에 대한 연구

전재억,정진서,황영모,김수광,김준안,계중읍,하만경 한국공작기계학회 2002 한국공작기계학회 추계학술대회논문집 Vol.2002 No.-

In any rapid prototyping process, the layer by layer building process introduces an area error between the staircase and the surface line specified by the computer-aided design model. This affects the dimensional accuracy as well as the surface finish for different part build orientations. This paper describes a methodology for computing the area error for any orientation of the part built by the fused deposition modelling system. This technique can be applied to determine the best build orientation of the part, based on the minimum area error. This technique is verified by comparing the results with the experimental measurements of the area error of the parts built at different orientations.

정형외과 영역에서 Zenol^(�)의 임상적 효과 판정 및 만성질환에서 Hot 및 Coll type의 비교

황병연,박명식,이준모,송경진,이강욱,허달영 최신의학사 1993 最新醫學 Vol.36 No.2

'거주지 기준 고교입학제한 정책'에 대한 법적 고찰 : 학교선택권을 중심으로 Centered for the right of school choice

황준성 연세대학교 교육연구소 2002 연세 교육연구 Vol.15 No.1

'학교선택권'은 우리 헌법이 명시하고 있는 ‘교육기본권’의 핵심적 내용임과 아울러 헌법 이전의 자연법으로부터 유래되는 ‘기본적 인권으로서의 교육권’을 실질적으로 보장하고 실현하기 위한 중요한 기재의 하나이다. 그러나 ‘고교평준화정책’과 함께 우리나라 고등학교 진학제도의 근간을 이루고 있는 ‘거주지기준 고교입학제한 정책’은 거주지라는 부모의 사회·경제적 지위가 개입되는 요소에 의하여 국민의 학교선택권을 심각하게 제한하고 있다. 이와 관련하여 헌법재판소는 지난 1995년 관련 판례에서 고교진학제도의 근거법령에 대하여 합헌 판결을 내린 바 있으나, 이는 다시금 재고되어야 한다. 거주지 기준의 고교입학제한 정책은 학교선택권과 함께 교육기회의 실질적 평등을 침해하는 것이며, 기본권제한의 한계로 일반적으로 논의되는 목적상의 한계, 형식상의 한계, 내용상의 한계, 방법상의 한계를 모두 일탈한 것이기 때문이다. The purpose of this article is to investigate the legitimacy and constitutional compatibility of the policy which restricts peoples' highschool entrance on the basis of residence. For this purpose, this paper analyzes current Korean highschool admission system, clarifies the origin and meaning of the right to choose the school where people or there children will go, and decompose the Constitutional Court's ruling concerned. Finding results are as follow. First, the main point of the current choice of our high schools and entrance system for schools is based on residence related with the social, economical backgrounds of students' parents rather than their abilities to study. And especially in academic high schoolㄴ, the allocation system by drawing lots which is based on students' school district puts severe restriction on the right to choose the school of people in Korea. Secondly, the right to choose the school is a kind of essential content of both "The Right of Education in Constitution" and "Educational Human Right Guaranteed with Natural Law" before constitution. Also it means the right to enter a school in which students want to be educated and learn what they want. In addition, it should not be trespassed by a country or any disinterested parties. Thirdly, Constitutional Court said that "Education Law's enforcement ordinance", which is fundamentals of the entrance system of schools at that time, doesn't violate Constitution, even though the right to choose the school is admitted as "the right in Constitution" in the ruling concerned[91헌마204]. However, the restrictive policy of high school entrance, of which standard is students' living places, and the relating laws to it are invading the right to choose the school and the actual equality of educational opportunities as well. Moreover, it is logically right that this is against Constitution because the limitations of the purpose, the formality, the content and the manner are deviated completely. In conclusion, the policy of high school entrance of which standard is students' living places never fail to be abolished because it trespasses on the right to choose the school severely, and the current entrance system of high schools should be investigated again entirely, in order to protect the right to choose the school and raise the educational power of local schools with much induction of their competitions.

SCF를 이용한 시간지연 회로의 설계 및 제작기술 개발

황준원,박종연,장목순 江原大學校 産業技術硏究所 1996 産業技術硏究 Vol.16 No.-

This paper deals with the tapped time delay circuit with SCF(Swiched Capacitor Filters). This filter is composed fo lossless discrete integrator and the SCF has 2-phase clocks. Experimental results have shown that telephone signals (0~4kHz) could be delayed in the range of sampling frequency 80kHz.But above the range, operational amplifiers and analog switchs have been difficult in the normal operating condition

한국산 부산입술대고둥(Euphaedusa fusaniana)의 아이소자임 변이

황보학,이준상,조등현 江原大學校 附設 環境硏究所 1994 環境硏究 Vol.11 No.-

Electrophoretic variations in isozymes encoded by 16 loci were studied to estimate genetic variation and to assess phyletic relationships, and biogeographic pattern of distribution of the Euphaedusa fusaniana collected from Sehwa, Aeweol, Samchuck, Tongdosa, Gernundo, and Y?su areas in Korea was discussed with respect to the isozyme variation. The 180 apecimens were examined. Means of allele per locus(?) and polymorphism(?) were 1.528 and 45.5%, respectively and hetrozygosity (?_(D)) was 0.205. Samchuck population showed lower mean value of allele per locus(?=1.46). Higher polymorphism(P=57.14%) was observed among Tongdosa popualtion. Aeweol population showed slightly lower genetic variation (H_(D)=0.15) than others. Average genetic similarities(?) among the six populations was 0.716 Aeweol and Samchuck populations were genetically closer(S=0.903) than others. However the S value between Y?su and Samchuch populations was low(S=0.562). Average genetic distance(?) among the 6populations were 0.267. Both Aeweol and Samchuck populations have closer genetic distance (D=0.067). Genetic distance pattern was similar to genetic similarity pattern.

알레르기성 비염 환자에서 절지동물성 특이항원의 양성율 및 항원간 일치율

황규윤,남해선,박준수,권준택,백병준,김장묵,오천환,조성란 순천향의학연구소 2000 Journal of Soonchunhyang Medical Science Vol.6 No.2

The current study was designed to evaluate the positive rates of arthropod allergens by Korean inhalant panel of MAST-CLA in patients with allergic rhinitis. One hundred sixty patients, diagnosed to allergic rhinitis in an Out Patient Center of Soonchunhyang University Chunan Hopsital during Aug 1998 to July 2000, were studied. 1. The overall positive rate among 35 specific allergens was 59.4% (95 patients). 2. The arthropod related allergen accounted for 82.1% (78 patients) of the positive rate. 3. Each positive rate of Dermatophagoides farinae (Df), Dermatophagoides pteronyssinus (Dp), house dust (Hd), and cockroach mix (Cm) was 45.0% (72 patients), 43.1% (69 patients), 28.1% (45 patients), and 8.8% (14 patients), respectively. 4.Significant agreement between arthropod allergens was observer (P < 0.05). 5. The obseved agreement between Df and Dp was 95.6%, showing most significant Kappa index (Kappa = 0.911, P < 0.001). There results suggested that although MAST-CLA is a useful measure of identifying specific allergens, the specificity of two mite allergen relatively low, implying because of common allergen between mites in Korean panel of MAST-CLA. Our data also supported that arthropod is the major cause of allergen in patients with allergic rhinitis, however, the MAST-CLA should be modified in order to exclude common allergen of mite and to include more specific mite allergen.

Raphanus sativus Var. Chungpihongsim의 hairy root 배양에 의한 anthocyanin 생성

황성진,백윤웅,고경민,안준철,황백 全南大學校 農漁村開發硏究所 1991 農業科學技術硏究 Vol.26 No.-

청피홍심무우를 재료로 A. rhizogenes A₄균주를 접종하여 hairy root를 유도하였으며 유도된 hairy root는 paper electrophoresis를 통하여 mannopine과 agropine이 검출되어 형질전환 되었음을 확인하였다. Hairy root는 MS의 기본염을 1/2로 희석시킨 1/2 MS, sucrose 3%, pH 5.2로 조성된 배지에서 최적인 성장을 보였다. 유도된 hairy root는 각 strain사이에 색소능에 다소간의 차이를 보였으며 2, 4-D kinetin의 적절한 조합의 처리구에서는 탈분화와 더불어 색소가 형성되었고, 그 중 2, 4-D와 kinetin을 각각 1 ppm, 5 ppm 처리하였을 때 최대 색소능을 보였다. hairy root의 탈분화시 형성되는 색소는 원 식물 뿌리의 주 색소인 pelargonidin 계열의 색소로 추정되며 총 색소량은 49mg/100g(F.W.)로 잠정 계산되었다. Hairy root induced following inoculation of the root disc and plantlet fragment of R. sativus Var Chungpihongsim with A. rhizogenes A₄. The hairy root contained agropine and mannopine. Medium contained 1/2 MS salt, sucrose 3%, pH 5.2 was optimized to growth of hairy root. Depending on the hairy root line, the level of pigment in hairy root varied somewhat . When 2, 4-D and kinetin were added in hairy root, the synthesis of pigment induced with deorganization of hairy root. Especially, addition of 2, 4-D 1 ppm and kinetin 5 ppm showed the maximum synthesis of pigment. Compared with anthocyanin extract of mature root three pigments were assumed to acylated pelargonin. The content of anthocyanin in these sample was 49mg/100(F.W.).

EU 경쟁정책의 특징과 시사점 : 법적, 제도적 분석 A Legal and Institutional Analysis

황준성 한국EU학회 2003 EU학연구 Vol.8 No.2

The European competition policy can look back at a successful forty-year-old practice of application by the European Commission. However, the performance orientation in competition policy has become more and more important with increasing importance of european integration. In a multitude of merger and state aid cases such a performance orientation can be shown. The European competition policy has three broad branches of competition law : (1) Anti-trust/cartel policy, (2) Merger control and (3) State aid. The authority applying competition law should be organised taking regard of aspects of institutional economics. The major articles and regulations of EU competition policy are article 81, 82 and 87 and Council regulation Nr. 4064/89. According to this articles and regulation, EU carries out the competition policy. The European competition policy can give some implications for Korea's competition policy.