Biphenyl 유도체의 photo-fries 반응

고승혜 서울대학교 대학원 1998 국내석사

근대풍경화의 형성과 전개에 관한 고찰

고승혜 홍익대학교 교육대학원 교육학과 미술교육전공 1986 국내석사

비트를 첨가한 설기떡과 절편의 품질특성 연구

고승혜 세종대학교 2012 국내박사

In this study physio-chemical ingredient of root, stem and leaf of Beet (Beta vulgaris L.) have been analysed, and root and leaf, edible parts, have been prepared by different drying process, then physio-chemical ingredient have analysed and compared. frozen-dried root and leaf of beet were selected, because of its superiority in anti-acid and anti-bacterial, according to the analysing result, and mixed with different mixing rate to make Sulgidduk and Julpyun, then the analysing results are as follows. According to physio-chemical analysis result of root, stem, and leaf of beet, crude protein and crude fat was high from stem, while dietary fiber was high from root. pH was high from leaf, and sugar content was high from root. From chromatography, L-value, brightness, was high from root, a-value, redness, was high from leaf, and b-value, yellowness, was high from leaf. Contents of all minerals were high from beet leaf. For separated sugar, fructose appeared from root, glucose from stem, both fructose and glucose evenly appeared from leaf, but sucrose did not appeared. DPPH free radical was high from stem, and poly-phenol was high from leaf. By different drying process, crude protein, crude fat and crude ash were high from frozen dried leaf. Dietary fiber was significantly high from hot-air dried beet root. pH and sugar content were high from frozen dried beet root. From chromatography, L-value, brightness, was high from frozen dried beet leaf, a-value, redness, was high from frozen dried beet root, and b-value, yellowness, was high from frozen dried beet leaf. Minerals were high from frozen dried beet leaf. Sucrose, a separated sugar, content was high from both hot air dried and frozen dried beet root. DPPH free radical erasing ability was the highest from frozen dried beet root. Poly-phenol was high from both hot air dried and frozen dried beet leaf. Anti-bacterial vitality was higher from beet root than beet leaf. Also anti-bacterial effect was more effective to Gram positive bacteria than Gram negativve bacteria. From Sulgidduk mixed with frozen-dried beet root powder, as per increasing mixing rate of beet root powder, L-value, brightness decreased significantly, while a-value, redness, and b-value, yellowness, increased. According to measuring result of texture, as per increase of mixing rate of beet root powder, hardness, cohesiveness, chewiness and adhesiveness were decreased, but no significant difference from elasticity. DPPH content showed the tendency of significant increase as per increase mixing rate of beat root powder. From sensory test, the appraisal of sample group, 3% mixing rate, was the best. From Chromatography of Sulgidduk mixed with beet leaf powder, as per increase mixing rate of beet leaf powder L-value, brightness, a-value, redness, and b-value, yellowness, were decreased. According to measuring result of texture, as per increase mixing rate of beet leaf powder, hardness, cohesiveness, and chewiness showed the tendency of decreasing. DPPH content of Sulgidduk mixed with beet leaf powder was higher than that of Sulgidduk mixed with beet root powder. From sensory test, sample groups, 3% and 5% mixing rate, received the best appraisal. From chromatography of Julpyun mixed with frozen dried beet root powder, as per increasing mixing rate of beet root powder L-value, brightness, and a-value, redness, was increased, but b-value, yellowness, was decreased. According to measuring result of texture, as per increase of mixing rate of beet root powder, hardness and cohesiveness showed tendency of decreased, but elasticity, chewiness and adhesiveness showed no significant difference. As per increase mixing rate of beet root powder DPPH content was increased significantly. From sensory test of Julpyun, 1 - 3% mixing rate was desirable. From Chromatography of Julpyun mixed with frozen dried beet leaf powder, as per increase mixing rate of beet leaf powder L-value, brightness, a-value, redness, and b-value, yellowness, were decreased. According to measuring result of texture, as per increase of mixing rate of beet leaf powder, hardness and chewiness were increased, but elasticity, cohesiveness and adhesiveness showed no significant difference. From sensory test, the appraisal of sample group, 3% mixing rate, was the best. In this study the possibility of making dduk using beet root and beet leaf was identified, and in the future it is intended to study the possibility of using beet as a functional natural coloring for traditional dessert.

초타원 암호시스템을 위한 종수 3 초타원 곡선 위에서의 스칼라 곱 연산에 대한 비교 연구

고승혜 한국방송통신대학교 2005 국내석사

타원 곡선(Elliptic curves)을 이용한 공개키(public key) 암호시스템은 유한체(finite field) 위에서 정의된 타원 곡선 위의 가환군(abeliangroup) 점들을 이용, 여기에 어려운 이산대수 문제(DLP)를 적용한 암호시스템이다. 이 때, 암호시스템의 구현 시 발생하는 연산인, 타원 곡선 위가환군에서의 효율적인 스칼라 곱(scalar multiplication) 연산 방법은 타원곡선 암호시스템 구현의 효율성을 높이는 중요한 문제로 연구, 발전되어 왔다. 하지만 타원 곡선 대신에 일반적인 타원 대수곡선형태인 초타원 곡선을 이용한 가환군에서의 스칼라 곱 연산은 더욱 단순화 될 수 있다. 왜냐하면, 초타원 곡선 위에서 가환군은 모듈러(modular) 연산에 의하여 동치들인 야코비안 군 구조로 바뀌게 되어, 이들의 스칼라 곱 연산 또한 단순화된 연산으로 바꾸어지게 된다. 그러므로 타원 암호시스템과 똑같은 안정성을 갖는 조건의 초타원 곡선을 이용한 암호시스템은 타원 암호시스템에 비해 더 작은 체 위에서 구현이 가능하기에 관심을 갖게 되었다. 또한, 효율적인 암호 시스템 구현은 군의 덧셈 결과로 인한 스칼라 곱연산이 결정하므로, 효율성이 높은 군의 덧셈 방법을 찾는 것이 궁극적으로 효율적인 암호 시스템 구현하는 방법이기 때문이다. 최근 들어 초타원 암호시스템 구현을 위한 스칼라 곱 연산을 위한 군의 덧셈 연산 알고리즘으로, 기존의 Cantor's 알고리즘을 사용하기보다는 이를 변형, 보조하는 알고리즘인 explicit formulae를 이용하여 연산의 횟수를 줄일 수 있기에 초타원 곡선위에서의 군의 빠른 스칼라 곱 연산을 가능하게 하였다. 이에, 이 논문에서는 초타원 곡선 중 종수 3인 유리수들의 야코비안 군 구조에서의 가환군의 효율적인 덧셈 연산 방법으로 다음의 두 가지 연산 방법을 이용하여 비교하여 보았다. 첫째, weighted 사영좌표계(projective coordinates)를 이용함으로써 역원 계산이 없이 군의 덧셈을 하여 스칼라 연산을 얻는 방법과 둘째, 군의 덧셈 연산 시 한 번의 역원 계산을 갖고 있으나 Harley's algorithm을 응용, 변형 연산하여 덧셈결과를 얻는 두 가지 방법의 덧셈 결과에 대해 Pelzl의 MI ? ratio 방법을 적용하여 효율성을 비교하여 보았다. 이 결과, 이 논문에서는 현재까지 종수 3인 초타원 곡선에서 효율적인 타원 암호시스템을 구현하는데 가장 중요한 문제의 하나인 군의 덧셈 연산에서는 역원 계산이 있는 계산이 사영 좌표계를 이용한 역 계산이 없는 방법보다 더 효율적임을 확인하였다. 따라서, 효율적인 종수 3 초타원 곡선의 암호시스템 구현에 도움이 되는 스칼라 곱의 군의 덧셈 방법으로 이 논문에서 확인한 역 계산이 있는 군의 덧셈 연산 방법이 현재까지는 더 효율적임을 확인하였다. During the last decade, asymmetric cryptosystems based on elliptic curves have been very popular. In the mid 1980s, Elliptic Curves Cryptosystems(ECC) were designed based on the difficulty of the Discrete logarithm(DL) problem in the group of points of an elliptic curves(EC) over a finite field. And ECC benefit from shorter operand sizes when compared to RSA or DL based systems. EC are a special case of hyperelliptic curves(HEC). In 1988, Koblitz proposed using the Jacobian of any hyperelliptic curve defined over a finite field for use in cryptosystems. The group law for the Jacobian of any hyperelliptic curve can be simplified by modular arithmetic of the divisor classes. Thus, the operand size of a HEC is even shorter compared to ECC. This fact makes HECC well suited for small processors and memory constrained environments. But the efficient algorithms of scalar multiplications in HECC need to improve the useful implementation of HECC. Addition of divisor classes means multiplication of ideal classes, which consists in composition of ideals and a first reduction to a basis of two polynomials. The output of this algorithm is said to be semi-reduced. Then we need a second algorithm, which is usually called reduction, to find a unique representation , i.e called reduced. But using Cantor's algorithm in a implementation several unneeded coefficient are computed. So, Harley' new fast addition algorithm of divisor classes on genus 2 hyperelliptic curves was proposed. And Gonda extended the Harley's algorithm to genus 3 curves with using Chinese remainder theorem, Karatsuba's multiplication, Toom's multiplication. The computational cost of this algorithm is I + 7 0M + 6S for an addition.(Here I and M and denote the cost of an inversion and a multiplication on the definition field) Fan's proposed Explicit formulae without using inversion for genus 3 HECC also taking Lange's inversion-free method in projective coordinate system. The computational cost of this algorithm is 132M + 8S for an addition. Finally this paper suggest a good method to find an efficient scalar multiplication on genus 3 HEC which is result of applying Pelzl's MI ? ratio over the two computational cost results.

하이브리드 경제조직 기반 지역활성화에 대한 연구 : 캐나다 퀘벡 주의 사회혁신과 공공주택 사례를 중심으로

고승혜 한신대학교 사회혁신경영대학원 2019 국내석사

본 논문은 한국 사회적경제의 발전에서 도농간, 지역간, 지역내 격차를 줄이는 방향이 중요하고 이를 위해 하이브리드 조직에 주목해야 한다는 점을 제기했다. 유럽연합의 사례를 보면 격차 축소를 위해 지역발전을 지원했는데 이는 협동조합이 지역의 발전에 역할을 하도록 기대하는 것이다. 하이브리드 조직의 하나인 협동조합이 신뢰의 물품을 구입하게 함으로써 조합원들이 조합에서 얻은 신뢰의 결과는 사회 전반에 걸쳐서 거래비용을 절약하게 하고, 지역의 하이브리드 조직의 발전에 효과적이라고 할 수 있다. 참여와 연대로 연결된 협동조합인의 노하우와 지역의 필요가 더하여진 하이브리드 조직이 주택, 교육, 복지, 문화 등 다양한 사회적 문제를 해결할 수 있다. 하이브리드 조직을 통한 문제 해결의 사례로 캐나다 퀘벡 주에서의 사회혁신과 커뮤니티주택에서 사회적 문제 해결 방법의 방향과 특징을 고찰하였다. 캐나다 퀘벡 주의 사례를 통해 협동조합과 같은 하이브리드 조직이 적절히 이용될 수 있음을 발견하였다. 윌리엄슨(Williamson)은 경제조직의 하이브리드 형태의 거래는 조직하기 어렵고 불안정하다고 보았다. 그러나 이제는 중간 범위의 거래가 더 일반적이 되었다는 점과 시장 및 하이어러키와 함께 하는 하이브리드 거버넌스 구조가 광범위하게 존재하고 있다. 사회적기업, 사회적협동조합과 같은 하이브리드 조직이 사회문제 해결과 시민의 필요를 지속적으로 수행해가는 구심점이 될 수 있다.

미술은행제도 분석을 통한 미술진흥정책 연구

고승혜 동덕여자대학교 2020 국내석사

국내의 미술은행은 설립초기에 미술품을 정부가 직접 구입해서 신진작가의 창작활동을 지원하고, 미술품의 대여와 전시를 통해 미술문화의 대중화를 꾀하여 국민들의 문화향유권을 신장하는 목표를 갖고 설립되었다. 그러나 국립현대미술관 미술은행이 설립된 지 15년이 지난 현시점, 아직도 미술은행을 둘러싼 다양한 논쟁은 끊임없이 지속되고 있다. 특히 작품의 구입 절차나 운영 측면에서 정부미술은행과의 이원화된 운영체제로 다양한 문제점에 직면하고 있다. 이에, 본 연구는 미술은행제도의 도약과 올바른 자리매김을 꾀하고 이를 통해 미술진흥에 기여하는 미술은행의 본질적 목표를 수행하기 위하여 현재 미술은행이 갖고 있는 문제점을 다각도로 분석하고 관련 개선 방안을 제시하였다. 연구 방법은 미술은행과 미술정책 관련 문헌을 중심으로 연구하였고 빅데이터 분석 방법 중 하나인 워드클라우드를 통해 최근 미술은행에 관한 핵심 키워드를 도출하였다. 연구 결과 미술진흥을 위한 미술은행의 개선 방안을 다음과 같이 제시했다. 첫째, 미술은행의 역량 측면에서는 작품구입 절차의 개선과 작품활용 제도에 대한 전반적인 개선점이 요구된다. 둘째, 공공미술 차원에서 미술은행과 정부미술은행 미술품의 관리 통합을 통해 관리의 효율성을 제고해야 할 것이다. 셋째, 미술품 구입에 있어 저작권을 확보하여 각종 사업과 홍보를 수행할 수 있는 작품의 활용 범위를 늘려 미술의 대중성과 공공미술로서의 미술은행의 역할을 정립해야 할 것이다. 넷째, 해외홍보문화원에 대해서는 미술은행이 각국의 수요에 맞춰 한국의 미술품을 전시함으로써 해외 속의 국가 문화사업을 육성시킬 필요성이 있다. 다섯째, 미술은행과 정부미술은행의 운영 일원화를 통해 운영체계를 개선해야 할 것으로 보인다. 마지막으로 현재 추진되고 있는 『미술진흥 중장기계획(2018-2022)』은 ‘미술로 행복한 삶’을 영위하기 위한 각종 전략에 따른 핵심과제 및 세부과제를 설정하여 미술의 창작과 향유·유통이 선순환하는 미술 생태계의 조성을 그 목표로 한다. 미술은행은 미술품의 구입과 활용을 매개하는 역할을 하고 있기 때문에 작품의 구입 과정에서 공정성과 형평성을 기하고 작품 활용에 있어서는 대중성를 목표로 해야 한다. 즉, 미술은행의 내적으로는 공정성과 형평성을 추구하고 외적으로는 대중성에 기여함으로써 미술 생태계의 주축이 될 수 있는 기관으로 발전해야 한다. The Art Bank was established with the goal of increasing the peoples’ right to enjoy culture. This was to be accomplished by promoting the popularization of art culture through art rentals, exhibition activities, and supporting the creative activities of new artists by purchasing the artworks directly by the government. However, since the establishment of the National Museum of Modern and Contemporary Art 15 years ago, various debates surround the art bank. One issue is with the dual operating system with the government art bank, in terms of the procedure and operation of purchasing the artwork. This study analyzes the current problem in various perspectives of the dual operating system with art banks and proposes relevant solutions to achieve the essential goal of art banks. For the art bank system to contribute to the promotion of art through the leap and correct positioning. The research method was focused on literature related to art banks and art policy, and a specific key keyword for art banks which was recently derived through one of the big data analysis methods, ‘word cloud.’ As a result of the study, the improvement plan of the art bank for the promotion of art was presented as follows: First, in terms of competency of art banks, improvements in the process of purchasing works and overall improvement of the system for utilizing works are required. Second, the efficiency of management should be improved through the management integration of art banks and government Art Banks at the public art level. Third, it is necessary to establish the role of the Art Bank as a public art and publicity of art. This can be accomplished by increasing the scope in regards to the use of works that can secure various copyrights and perform various business and publicity in purchasing art. Fourth, for overseas public relations cultural institutions to assist in the need for art banks to foster national cultural projects in foreign countries, by exhibiting Korean artworks to meet the needs of those countries. Fifth, the operating system should be improved through the unification of the operation of art banks and government art banks. Lastly, the mid and long-term plan for art promotion (2018-2022), which is currently being promoted. To set the core and detailed tasks according to various strategies to lead a ‘happy life with art.’ The purpose being the creation, enjoyment, and circulation of art so that they are in a virtuous cycle with the goal ‘to create an art ecosystem.’ Since the Art Bank plays a role of mediating the purchase and utilization of artworks, fairness, and equity in the process of purchasing works should be aimed at, and the popularity of the arts should be targeted. In other words, it must develop into an institution that can become the main axis of the art ecosystem by pursuing fairness and equity internally and contributing to publicity externally.

석류첨가량에 따른 석류편의 품질특성

고승혜 세종대학교 2008 국내석사

This study was performed to manufacture of pomegranate-pyun by different of pomegranate juice and concentrate. According to analysis components, pomegranate juice contained moisture(85.6%), starch(12.2%), crude protein(0.3%), crude lipid(0.1%), crude ash(1.8%) and pomegranate extract contained moisture(38%), starch(58.8%), crude protein(1.0%), crude ash(2.1%). saccharinity of pomegranate concentrate was higher(7.0Brix) than juice(1.9Brix). According to pH reading of pomegranate-pyun it was found that pomegranate juice showed higher(3.1) than pomegranate concentrate(2.9) electron donating ability(EDA) of pomegranate extract using the DPPH method was 76.94, in other hand, pomegranate juice was 86.94. Moisture content of pomegranate-pyun was made of different ratio of pomegranate juice was SJ4>SJ3>SJ2>SJ1. and moisture content of pomegranate-pyun was made of different ratio of pomegranate extract was SC3>SC4>SC>SC2>SC1. As a result of measuring pH, the pomegranate-pyun, which was added the pomegranate concentrate, was indicated to have higher pH than the pomegranate-pyun, which was added the pomegranate juice. And, the less pomegranate additive quantity led to the more pH. After making pomegranate-pyun by allowing additive quantity to be different between pomegranate juice and pomegranate concentrate, pH increased on the whole. As a result of measuring chromaticity, luminosity L value in pomegranate fruit jelly depending on additive quantity in pomegranate juice was indicated to be high in order of SJ4> SJ3> SJ2> SJ1. Luminosity L value in pomegranate-pyun depending on additive quantity in pomegranate concentrate increased in order of SC4>SC3>SC2>SC1. As for the red color 'a' value in all samples, the pomegranate-pyun SJ4, which was added 40% of pomegranate juice, was indicated to be the highest. And, there was no significant difference from a group with other addition.(p〈0.05) Pomegranate juice was indicated to have higher red-color 'a' value than pomegranate concentrate. As for the yellow-color 'b' value, the pomegranate jelly SC4, which was added 40% of pomegranate concentrate, was indicated to be the highest. There was no significant difference from SC3. And, there was significant difference from a group with other addition.(p〈0.05) Pomegranate concentrate was indicated to have higher yellow-color 'b' value than pomegranate juice. Regarding water capacity in all samples, SJ4, which is a group of 40% addition in pomegranate juice, was indicated to be the highest, and there was no significant difference between SC3 and SC4.(p〈0.05) As a result of measuring sugar content, the sugar quantity in case of making the pomegranate-pyun is same, thus the great significant difference was not indicated in sugar content. As a result of measuring DPPH, DPPH in pomegranate-pyun depending on additive quantity in pomegranate juice was indicated to be high in order of SJ1> SJ2> SJ3> SJ4. DPPH in pomegranate-pyun depending on additive quantity in pomegranate concentrate was indicated to be high in order of SC1>SC2>SC3>SC4. SC1 in pomegranate-pyun, which was added 100% of pomegranate concentrate in all samples, was indicated to be the highest. And, the significant difference was indicated from all the groups of addition.(p〈0.05) As a result of physically measuring pomegranate-pyun, the starch quantity in case of making pomegranate-pyun is same, and the stability of viscosity is good. The internal bonding strength is excellent. And, it was made by using the mung-bean starch with the best gel formation, thus significant difference was not greatly indicated. As for a survey of preference, test was indicated to be the highest in color, sourness, clearness which was made of pomegranate juice. but test was indicated to be the highest in appearance, sweetness, springiness, chewiness which was made of pomegranate concentrate In the above results, the overall preference in case of a sensory test was indicated to be the highest in SJ2, a group of addition in 80%, which was made of pomegranate juice. However, given testing preference, pomegranate-pyun, which was made by using pomegranate juice, was indicated to be the highest in SJ3 with addition of 60%. Regarding the pomegranate-pyun that was made by using pomegranate concentrate, SC2, which is a group of addition in 80%, was indicated to be the desirable combination of making pomegranate-pyun in the quantitative descriptive analysis and the preference test. In the above results, the preference for pomegranate-pyun, which was made of pomegranate juice, was higher, and even the pomegranate concentrate could be confirmed the possibility of making pomegranate-pyun. Based on this study, it is desired to confirm potentiality of developing traditional Hangwa (Korean cookies) that uses pomegranate, and to be developed a research on Korea's traditional desserts, which can be preferred by the taste of modern people and has possibility, by using, developing and commercializing diverse materials aiming at globalization of fruit jelly(果片).