전문가 평가척도 향상을 위한 계층적 의사결정에 관한연구

강희정,이상설 한국생산성학회 1997 生産性論集 Vol.12 No.1

제조업부문 온실가스 저감수단의 비용특성 분석

강희정,정희용,박영구 대한설비관리학회 2004 대한설비관리학회지 Vol.9 No.4

A bottom-up Integrated Engineering Economic Model(IEEM) is developed for the purpose of evaluating GHG Reduction options in the industrial sector. This model is analyzed the GHG emission of energy intensive industries - cement industry, paper industry, steel and iron industry, refinery and petrochemical industry in Korea. The model proposed in this study was focused on economic evaluation including the marginal cost, payback period, Equivalent Uniform Annual Worth and sensitivity analysis of GHG reduction options.

국내 에너지 및 전력산업 부문의 전과정평가

강희정,권영한 한국전과정평가학회 2000 한국전과정평가학회지 Vol.2 No.2

본 논문은 국내 에너지 및 전력산업 부문의 LCA 연구 및 주요 적용사례 결과를 요약한 것이다. 기후변화 협약에 대허하기 위하여 현재 많은 국가에서는 다각적인 노력을 기울이고 있다. 이러한 노력에 대한 포괄적 분석을 수행하기 위하여 많은 분석 모형이 개발된 바 있으며 현재까지 일부 모형에서는 지구온난화가스 배출 영향 분석까지도 그 영역이 확대되고 있다. 이 가운데는 LCA 개념이 응용된 것도 있으며 주로 전력부문의 기술평가에 적용되고 있다. 현재까지 개발된 이러한 분석적 방법에 대한 유용성과 응용성의 평가를 본 논문에서는 에너지 및 전력부문에 국한하여 논의하였다. The main results of the LCA case studies were applied in the energy and electric power sector in Korea are summarized. Alternative policies to address global climate change are being debated in many countries. In order to provide comprehensive analyses in support of this process, many assessment models have been among them, the LCA was compiled in the model and used as a tool of the technical assessment of electric power sector. In this paper representative analytic methodologies applicable o the LCA are also discussed to judge their usefulness and applicability in the energy and electric power sector.

ModelCenter를 이용한 QTP-UAV 프롭로터 블레이드 형상 최적설계

강희정 항공우주시스템공학회 2017 항공우주시스템공학회지 Vol.11 No.4

쿼드틸트 무인기에 적용되는 프롭로터 블레이드 형상 최적설계를 수행하였다. 형상 최적설계 프로세스 통합은 ModelCenterⓇ 프로그램을 이용하였으며, 최적설계 과정에서 성능해석은 CAMRAD-II를 사용하였다. 목적함수는 제자리비행 및 전진비행 모드에서 성능효율 최대화로 설정하였으며, 제한조건은 소요 동력 및 피치로드 하중 값이 기본 형상 값보다 작게 되도록 설정하였다. 설계변수로는 블레이드 루트 코드길이, 테이퍼비, 비틀림 각의 기울기 및 각도, 하반각, 끝단 형상 생성을 위한 파라볼릭 계수, 하반각과 끝단형상이 적용되는 블레이드 스팬위치, 블레이드 단면을 구성하는 익형의 위치로 구성하였다. 최적 설계 결과 기준 형상 대비 제자리비행 효율은 1.6%, 전진 비행 효율은 13.6% 향상된 프롭로터 블레이드 형상을 도출할 수 있었으며, 피치로드 하중은 약 30% 감소하였다. Blade design optimization of QTP-UAV prop-rotor was conducted using ModelCenterⓇ. Performance efficiency of the blade in hover and forward flight were adopted as the multi-objective function. Required power and pitch link force applied to constraint in each flight mode and limited lower than the value of the baseline blade. Design variables of root chord length of the blade, taper ratio, twist slope, twist angle at 0.5R of the blade, anhedral angle, parabolic coefficient of a tip shape and location of airfoil were used to generate the blade planform. CAMRAD-II, the comprehensive analysis program of rotorcraft, was used for performance analysis of prop-rotor blade in design process. Performance of the optimized blade improved 1.6% of figure of merit in hover and 13.6% of propulsive efficiency in forward flight. Pitch link force also reduced approximately 30% less than that of the baseline blade.

The Remains from Ancient Times: Newly Formed Connections with Buddhist Culture Designated as ‘‘Art’’ or ‘‘Cultural Assets’’

강희정 서강대학교 종교연구소 2019 Journal of Korean Religions Vol.10 No.1

The Remains from Ancient Times: Newly Formed Connections with Buddhist Culture Designated as “Art” or “Cultural Assets”

자기회귀모형에서의 로버스트한 모수 추정방법들에 관한 연구

강희정,김순영,Kang, Hee-Jeong,Kim, Soon-Young 한국데이터정보과학회 2000 한국데이터정보과학회지 Vol.11 No.1

본 논문에서는 가장 많이 사용되는 시계열 모형중의 하나인 자기회귀모형에서 모수를 추정하는 방법으로 최소 절대 편차 추정법(least absolute deviation estimation)을 포함한 로버스트한 추정방법 (robust estimation)의 사용을 제안하고 모의 실험을 통하여 이러한 방법들을 기존의 최소 제곱 추정 방법과 예측의 관점에서 비교 검토하여 시계열 자료분석에서의 로버스트한 모수 추정 방법의 유효성을 확인해 보고자 한다. In this paper, we study several parameter estimation methods used for autoregressive processes and compare them in view of forecasting. The least square estimation, least absolute deviation estimation, robust estimation are compared through Monte Carlo simulations.

서산 보원사 사리기와 신라 하대의 해상 교류

강희정 신라사학회 2019 新羅史學報 Vol.0 No.46

충남 서산 보원사지 오층석탑 발견 사리기는 법인국사 탄문이 활동한 10세기경에 제작된 것으로 간주되었으나 사리기 윗면의 선각 수기 장면과 8세기 신라 조각을 비교하면 8세기 중엽 제작으로 추정된다. 사리기 아랫면에 새긴 ‘연기법송'은 의정이 번역한 문구로써 이를 봉헌물에 새기는 일은 인도, 네팔, 동남아에서 보편적으로 보이는 것이므로 바다를 통해 신라에 전해졌다고 볼 수 있다. 보원사 사리기의 수기 장면과 연기법송은 화엄사찰 보원사에서 깨달음을 얻어 성불한다는 약속을 중시했음을 알려준다. 보원사는 최치원이 華嚴十山으로 불렀던 곳으로 그는 9세기말에 서산의 지방관을 하다가 견당사로 바다를 건넜다. 이엄, 체징 등 보원사와 관계있는 입당구법승들도 서산 인근의 항구를 이용했을 것이다. 보원사가 해상을 통한 불교문화교류에서 중요한 역할을 했음을 시사한다. The sarira reliquary found in the five-storied stone stupa at Bowonsa-ji temple site, Sosan in Chungcheongnam-do, is considered to have been constructed around the 10th century when Tanmun was alive. This paper argues that it is possible to assume its construction date to the mid 8th century by the engraved representation on the sarira reliquary. Comparing the scene on top of the sarira casket, which depicts the promise of being a Buddha in the next life, with sculptures from 8th century Silla, it is assumed the sarira casket to be created at least before the 9th century. Furthermore, as the Ye-dharma gatha on the bottom of the sarira casket is inscribed in Chinese characters translated by Yi-jing, it implies that the gatha was transferred to Silla by sea. The sarira casket having the inscription of Ye-dharma gatha and the scene of the promise indicates peoples' devotion to Buddhism. Due to that Bowon-sa temple was called as one of the ten universities of Avatamsaka-Sutra by Chiwon Choi, the sarira casket also emphasizes the promise of being a Buddha by finding enlightenment. When Chiwon Choi, who had served as a local administrator of Sosan, crossed the border to the Tang dynasty as an envoy, other monks related to the Bowon-sa temple such as Eoum and Chejing also sailed to the Tang. Ennin, who had followed to the envoys from Japan to China, wrote that vessels of Silla were indispensable in the maritime trade of those days. Locating near the Tangeunpo-port, which was a strategic point in the maritime trade with China, the local powers of Sosan gathered wealth by overseas trade and sponsored the Bowon-sa temple. They could have strongly connected with the monks in Sosan and sponsored the creation of sarira casket.

예경(禮敬)과 선업(善業)을 위하여: 요잡(繞匝)을 위한 탑(塔)과 상(像)

강희정 미술사와 시각문화학회 2011 미술사와 시각문화 Vol.10 No.-

불교의식과 미술의 관계에 대한 기존 연구에서 주목받지 못했던 개인적 의례로서의 요잡과 그를 위한 공간에 대한 연구이다. 부처의 둘레를 도는 요불과 탑 주위를 도는 요탑을 고려하여 석굴암과 후불벽이 있는 건축을 고안했고, 이 전통이 조선시대까지 이어졌다. 복잡한 절차를 갖춘 고도의 의례는 아니지만 고승의 영도 없이 신도 개인이 예경과 선업(善業)을 위해 요잡을 할 수 있다. 그러므로 이를 배려한 불교 건축과 탑의 건립은 상당히 개별적이고 사적인 공간으로서 대대적인 불교의식을 전제로 한 공공의 미술과는 다른 관점에서 중요한 기능을 해왔다고 볼 수 있다. A study of Buddhist art based upon Buddha images and stupas has been focused on some subjects like who the artists and sponsors were and what the major functions of those works were. This kind of study is an attempt to investigate the characteristics of such images when they were first created. Much emphasis, however, has been placed upon the ritual context of Buddhist art. The creation of Buddha images and stupas requires a huge amount of money and time for their creations. Furthermore, these products lasted for several generations once they were made. Accordingly, these products require a long period of time for preservation and conservation. They also need a large space. In this regard, one may assume that the initial purposes of such artistic works can vanish after some time period. Then it is necessary to examine how long people have made some sorts of relations with such Buddha images and stupas. This implies a need of study investigating social and religious values of such Buddha images and stupas. This essay focuses on the act of circumambulation (yojap) as individuals' ways of worshipping the Buddha. Circumambulation is a ritual, which leads the mass to participate in the Buddhist worshipping ritual and promotes their faith via enhancing the sense of cooperative spirits. According to the Buddhist scripture, circumambulation began in India since the time of Buddha Shakyamuni. During the time, people made rotations from their east(right) side (wuyo [pradaksina], whose meaning was "turning towards the righthand"). Pradaksina was one of the important rituals, which were emphasized from the early period of Buddhism. When this ritual was introduced in the Silk-Road area and China, the forms could be easily accepted in China. As Pradaksina was a simple act, which required only encircling around pagodas, it could be settled within a short period of time. In the Three Kingdoms and Unified Shilla periods in Korea, circumambulation and the act of encircling around Buddha images became popular. Some records from the Samguk Yusa (Additional Material on the Three Kingdoms) and careful examinations of the temple sites of those times reveal that there were various ways of circumambulation during the time. These included encircling around stupas, at the first floor of the wooden stupas, or the space inside the wooden stupas. As indicated in the main chamber of the Seokguram Grotto for circumambulation, there was always a space for encircling around the Buddha image. Particularly, it seems that the main chamber of the Seokguram was created as a space to raise such an illusion to its devotees that they felt as if they were accompanying the Buddha and his disciples. In addition, as seen in the case of the Geukrakjeon in the Muwisa, there is an empty space around the Buddha image at the center, which was also used as a space for the act of circumambulation. Circumambulation could be a personal and daily act of worshipping for the Buddhist in Korea, and this ritual had an impact on the construction of stupas and temples in Korea. The open spaces for the circumambulation in those temples have functioned as private spaces for the devotees worshipping the Buddha. Accordingly, the meaning of these passages for circumambulation should be reexamined from new perspectives. Previous scholarship has neglected the significance of circumambulation. The temple served as a public space for Buddhist devotees. The act of circumambulation played a important role in transforming the temple into an important public space.

딴곳갑상샘으로 발생한 선천성 갑상샘저하증 환아의 임상적 특징

강희정,이정호,이동환 순천향대학교 순천향의학연구소 2017 Journal of Soonchunhyang Medical Science Vol.23 No.1

Objective: This study aimed to describe the clinical features of patients with congenital hypothyroidism due to ectopic thyroid including locations of ectopic thyroid, thyroid function, age of treatment, and starting dose of medication. Methods: A total of 71 children with congenital hypothyroidism due to ectopic thyroid diagnosed by thyroid ultrasonography (USG) or 99mTc-petechnetate thyroid scan in the department of pediatrics, Soonchunhyang University Seoul Hospital from 1992 to 2015 were enrolled and analyzed retrospectively. Results: Among 71 patients, 26 patients (36.6%) were male and 45 patients (63.4%) were female as the gender ratio was 1:1.73. The locations of ectopic thyroid confirmed by USG or scan were found to be sublingual in 52 patients (73.2%), lingual in 17 patients (23.9%), prelaryngeal in 1 patient (1.4%), and combined in 1 patient (1.4%), respectively. The average value of serum thyroid stimulating hormone was 267.5 μIU/mL and free thyroxin was 0.63 ng/dL. The average value of thyroglobulin (TG) was 217.6 ng/mL. Fifty two patients (73.2%) started treatment within the 1 month of age and 19 patients (26.8%) started after the 1 month of age. The average of the medication starting dose was 12.2 μg/kg/day. There was no significant difference on TG value and starting medication dose. Conclusion: As the previous literatures, the presence of ectopic thyroid was more common in female than male. It was coincident with this study. It is generally accepted that lingual ectopic thyroid is most common ectopic location, but in this study, proportion of sublingual thyroid was most common.

17대 대통령 선거 보도에 나타난후보자 속성의제와 매체 간 의제설정

강희정,민영 한국정치커뮤니케이션학회 2010 정치커뮤니케이션 연구 Vol.19 No.-

본 연구는 선거 캠페인 과정에서의 뉴스의제형성을 탐구하고자 2007년 17대 대선에서 정동영 후보와 이명박 후보에 대한 언론 보도를 정책속성과 개인적 속성을 중심으로 분석하였다. 또한 이러한 후보자 속성의제에 대해 상이한 언론사 간에 의제설정효과가 존재했는지를 탐색하였다. 공식 선거운동 기간 동안 네 개의 중앙 일간지와 세 개의 지상파 메인 뉴스를 통해 보도된 두 후보 관련 기사들을 분석한 결과는 다음과 같다. 첫째, 정동영 후보에 대한 보도에 비해 이명박 후보에 대한 보도가 약 2.5배 이상 많은 가운데, 두 후보의 속성의제도 상이한 특성을 나타냈다. 이명박 후보의 경우 도덕성과 관련된 측면이 압도적인 비중으로 보도되면서 정책 관련 속성들이 의제에서 차지하는 비중이 매우 낮았다. 반면 정동영 후보의 경우, 시기별로 차이는 있으나 개인적 자질이나 품성에 대한 보도보다 정책적 속성에 대한 보도가 더 큰 비중을 차지했다. 둘째, 언론사 유형별로 후보자 속성의제도 차별성을 노정했다. 정동영 후보의 경우, 방송과 진보 성향 신문에서 사회적 정책이슈들의 현저성이 더 높게 나타났으며, 방송과 보수 성향 신문에서 도덕성 문제가 더 빈번하게 언급된 것으로 관찰되었다. 이명박 후보의 경우, 언론사 유형에 상관없이 도덕성 관련 보도가 가장 높은 비중을 차지했기 때문에 속성의제의 수렴 현상이 더 뚜렷하게 나타났다. 셋째, 두 후보의 속성의제에 관련해서 매체 간 의제설정효과를 탐색한 결과, 전반적으로 이명박 후보 의제에 대한 상호적 의제설정이 더 뚜렷하게 관찰되었다. 전반적으로, 선거 과정에서 방송 뉴스보다 신문 뉴스가 후보자 의제를 형성하는 데에 있어서 더 선도적인 역할을 했던 것으로 보인다. To explore the formation of news agendas of candidate attributes, this study investigated the electoral coverage of Chung, Dong-Young and Lee, Myung-Bak, the two leading candidates in the 2007 presidential election in Korea. More specifically, this study analyzed candidate coverage mainly in terms of policy and personality-related attributes and further delved into whether there were meaningful intermedia agenda setting effects among different news outlets. During the official campaign period, 4 major daily newspapers and 3 major prime-time news broadcasts were analyzed. According to the results, first, while the amount of the coverage of candidate Lee was more than 2 times than that of candidate Chung, their attribute agendas revealed some differences. Lee was covered predominantly in terms of the attribute of morality and, consequently, his policy attributes were reported in relatively low frequencies. In the Chung coverage, however, the portion of policy attributes was larger than that of personal attributes, attributes regarding personalities and qualifications. Secondly, different news media showed some different patterns in their candidate agendas. Particularly in the case of candidate Chung, news broadcasts and progressive daily newspapers covered his social policy issues more often while conservative dailies more frequently highlighted his morality problem. Thirdly, there found more significant intermedia agenda setting regarding the attribute agendas of candidate Lee. In general, newspapers seemed to exert stronger initiatives, than the electronic media, in setting the agendas of candidate attributes in a presidential election.