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1

국내 포털 기사자료 분석을 통한 산업기술유출 사례와 산업보안 강화 방안 연구

양현정, 이창무

한국융합보안학회 융합보안논문지 제17권 제2호 2017.06 pp.3-14

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지식정보화 사회가 도래하면서 많은 국내기업이 핵심기술 및 지식재산 확보를 위해 기술개발에 많은 투자를 하고 있다. 하지만적극적인 기술개발 투자에 비해 기업이 보유한 기술을 보호하기 위한 보안투자가 미흡한 결과 다수의 기업 및 연구소에서 기술유출 사건이 급격하게 증가하고 있다. 이러한 기술유출의 증가는 단순히 기업에 피해뿐만 아니라 국가 경제에도 직·간접적인악영향을 미치고 있는 실정이다. 산업기술유출은 주로 전·현직 직원에 의해 이뤄지고 있지만, 이를 중점적으로 비교 분석한연구는 많지 않다. 따라서 본 연구는 2014년부터 2016년 동안 발생한 산업기술유출 사례를 기술유출 피해기업의 유형, 회사 내기술유출 주체자의 직위, 기술유출의 공범여부, 기술유출에 사용된 도구, 기술유출의 동기로 유형화하여 산업기술유출 실태를파악하였다. 이러한 유형별 분석을 통해 산업기술유출의 패턴과 특징에 대해 조사하고 산업기술유출 방지를 위한 산업보안 증진방안을 모색하였다.
In the knowledge-information society, many domestic companies put lots of investment in technical development to possess core technologies and intellectual property. However, in the results of passive investment in security to protect their technologies compared to the active investment in technical development, the technology leaks from many companies and research institutes are rapidly increasing. Such increase of technology leaks not only causes damage to companies, but also has harmful effects on national economy directly and indirectly. Even though it has been perceived that a lot of industrial technology leak crimes are committed by former/current workers of small and medium-sized businesses, it is hard to find researches that mainly compare and analyze them. Therefore, this study aimed to understand the actual status of industrial technology leaks by analyzing cases of industrial technology leaks from 2014 to 2016 based on the type of victimized companies, corporate internal leakers' positions, matter of complicity, tools used for technology leaks, and motivation for technology leaks. Through the analysis in each type, the patterns and characteristics of industrial technology leaks were researched, and also the exploratory research on industrial security for the prevention of industrial technology leaks was conducted.

4,300원

2

초등학교 여학생의 학교스포츠클럽대회 참여 경험

양현정, 김만의

한국초등체육학회 한국초등체육학회지 제23권 제1호 2017.04 pp.49-68

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본 연구의 목적은 학교스포츠클럽대회에 참여하였던 초등학교 여학생들이 학교스포츠클럽대회에 참여하게 되는 동기와 회피하는 이유 등을 학생들의 경험을 통해 심층적으로 이해하는 데 있다. D광역시 S초등학교에서 2015학년도 학교스포츠클럽대회에 참여하였던 학생 6명을 연구 참여자로 선정하여, 본 연구자가 2015년 4월부터 2015년 7월까지 학교스포츠클럽대회준비의 현장을 생생하게 관찰하였다. 또한 심층면담 자료와 일기장, 연구자 현장일지를 참고하여 연구자들을 이해하려고 노력하였으며 자료의 진실성을 위해 다각도 분석법, 구성원 간 검토, 동료 간 협의를 실행하여 다음의 결과를 얻었다. 첫째, 초등학교 여학생의 학교스포츠클럽대회 참여 동기로는 ‘교우관계 형성의 장’, ‘보상’으로 나타났다. 둘째, 초등학교 여학생의 학교스포츠클럽대회 회피 이유는 ‘걱정 및 부담’이었다. 셋째, 초등학교 여학생들이 학교스포츠클럽대회 참여 과정에서 느낀 것은 ‘지도교사에 대한 호, 불호’, ‘성취감’, ‘아쉬움’이 있었다.
This research aims at understanding in depth what the motivation or reasons were for the elementary school girl students to have actively participated in school sports club league, why students avoided it, and what they felt in the process of preparation. Six students in S elementary school located in Dmetropolitan city, who had joined the school sports club league in 2015, were selected as the research subjects, and the preparation scenes for the school sports club league was observed vividly by this researcher in person from April, 2015 to July, 2015. In addition, efforts were made to understand the subjects by referring to in-depth interview data, journals and the researcher's daily records of the filed, and the following results were attained through an analysis method from various angles, examination among members, and discussion among coworkers for the fidelity of the data. First, the motivations in the elementary school girl students' participation in school sports club league were turned out to be ‘the field to form companionship’, and ‘rewards.’ Second, the reason why the elementary school girl students avoided the school sports club league was found to be ‘worry and burden.’ Third, it has been turned out that during the participation process in the school sports club league, the elementary school girl students had some ‘opinions about the teachers’, ‘sense of achievement’, and ‘regrets.’

5,500원

3

교양교육시스템 변화에 따른 대학생의 역량, 만족도 및 성적의 변화

정경미, 양현정, 김수연, 김은정, 홍혜경, 한봉환

한국교양교육학회 교양교육연구 제11권 제2호 2017.04 pp.585-614

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본 연구에서는 서울 시내 1개 종합대학에서 2007년부터 2015년까지 교양교육시스템의 변화가 대학 신입생의 역량, 만족도 및 성적에 어떤 영향을 끼쳤는지 조사하였다. 구체적으로는 교양교육시스템에 큰 변화가 있었던 2010년(학과제 실시와 교양교육개편)과 2013년(RC교육실시)을 중심으로 3개 시기로 분류하고, 학생들의 역량과 만족도, 그리고 성적의 차이를 비교하였다. 그 결과, 첫째, 역량과 성적은 분기에 따라 유의미하게 향상되었으며, 만족도는 2분기에서 증가, 3분기에서는 감소하였다. 둘째, 성적의 높고 낮음에 따라 학생들의 분기에 따른 역량 및 만족도의 변화가 유의미하게 다른지를 알아보았다. 그 결과, 역량의 경우 성적과 분기에 따른 상호작용은 유의미하지 않았으나, 만족도 변화는 성적과 분기에 따라 유의미한 상호작용이 발견되었다. 즉, 모든 분기에 걸쳐 성적이 높은 학생들이 일관되게 높은 만족도를 보고하였으나, 성적이 높을수록 3분기 감소율이 낮아졌다. 마지막으로, 성별에 따라 학생들의 분기에 따른 역량 및 만족도와 성적의 변화가 유의미하게 다른지 조사하였다. 그 결과, 역량 및 만족도 그리고 성적의 변화 모두 성별과 분기에 따른 유의미한 상호작용이 발견되었다. 남학생의 경우 모든 분기에 걸쳐 일관되게 여학생보다 높은 역량과 만족도를 보고하였으나, 성적은 여학생이 유의하게 높았다. 여학생의 경우, 남학생보다 역량 부분에서 3분기 증가율이 더 높았으며, 만족도는 3분기 감소율이 더 낮은 양상을 보였다. 성적의 경우, 남학생이 2분기에 더 높은 성적 증가율을 보였다. 본 연구결과는 해당 대학에서 실시한 교양교육제도개편의 긍정적 결과를 보여주며, 추후 교양교육제도변화의 방향을 제시해 준다.
The current study investigated on the competence, satisfaction, and grade point average(GPA) of the first-year college students, influenced by changes made in the general education system. The study took place in a four-year university located in Seoul, Korea, from 2007 to 2015. Specifically, three periods were identified: a period before reinstation of department-based system and reorganization of general education(2007-2009), a period after such change occurred and before first implementation of residential college(RC) education(2010-2012), and a period after executing RC education(2013-2015). The results showed that first, competence and the GPA improved significantly across the periods while satisfaction increased only to the second period and decreased in the third period. Second, the interaction between the level of GPA and the periods of the general education system on the amount of self-reported competence and satisfaction had been investigated. Results showed that only the satisfaction has a significant interaction, which means that students with higher grades responded to be more satisfactory about their first year at school overall. However, the higher the grades were, the lower the rate of the decline was in the third period. Lastly, the interaction between the gender and the periods of the general education system on the amount of self-reported competence, satisfaction, and the GPA had been investigated. The results showed that all of the variables had significant interactions. The male students had significantly higher competence and satisfaction reported than the female students, while female students had significantly higher GPA across all periods. Meanwhile, the female students showed higher increase of competence and lower decline of satisfaction in the third period. As for the GPA, the male students showed improvements in the second period. Overall, the results indicate the effectiveness of the changes made in the general education system and suggest future directions.

7,000원

4

다중체계 치료(Multisystemic Therapy)의 한국적 적용: 청소년동반자 프로그램

배주미, 오경자, 이기학, 이상선, 양현정, 지승희, 송미경, 신효정

한국인지행동치료학회 인지행동치료 제6권 제1호 2006.06 pp.1-22

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최근 미국 및 유럽에서 위기청소년에 대한 개입방법으로 그 효과를 검증받고 있는 다중체계치료(Multisystemic Therapy)를 소개하고, 이것을 한국적 상황에 적용한 청소년동반자 프로그램에 대해 소개하였다. 먼저, 다중체계 치료의 핵심 개념인 9가지 원칙과 이것의 교육 체계에 대해 설명하였다. 이를 적용한 우리나라의 청소년동반자 프로그램의 운용원칙, 개입방식 및 교육체계에 대해 설명하였다. 마지막으로, 다중체계치료가 청소년 동반자 프로그램에 적용가능한 점과 적용상의 제한점에 대해 논의하였다.
This article is to introduce the Multisystemic Therapy which is acknowledged as the best intervention approach for adolescent at risk in North America and Europe and the Youth Companion Program which is the application of Multisystemic therapy in Korea. We explain 9 core principles and training system of the Multisystemic Therapy. We also introduce operating principles and intervention approach, training system of the Youth Companion Program. At last we discuss application and limitation of the Multisystemic Therapy for the Youth Companion Program.

5,800원

5

MRI를 통한 황문혈(BL51)과 지실혈(BL52)의 자침 깊이에 대한 연구

양현정, 심호연, 이광호

[Kisti 연계] 대한침구의학회 대한침구의학회지 Vol.33 No.2 2016 pp.89-96

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Objectives : The aim of this study is to investigate the needling depth of Hwangmun (BL51) and Jisil (BL52) retrospectively using an L-spine MRI. Methods : We measured the shortest distance from the skin to transversalis fascia at both sides of Hwangmun and Jisil, and analyzed the difference between male and female using a student t-test, and between the left and right sides with a paired t-test. Results : In the case of males, the average depth of left Hwangmun was $48.24{\pm}10.16mm$, and that of right was $47.23{\pm}9.59mm$ ; left Jisil was $56.91{\pm}9.00mm$ and right was $55.74{\pm}8.75mm$. In the case of females, the average depth of left Hwangmun was $42.26{\pm}9.29mm$, and that of right was $41.63{\pm}9.32mm$ ; left Jisil was $49.21{\pm}10.77mm$ and right was $48.41{\pm}11.38mm$. The depth of male insertion was deeper than that of female in Jisil, but there was no significant difference according to gender in Hwangmun. Conclusion : For males, the needling depth of left Hwangmun is 37.21 ~ 68.23 mm and right is 36.91 ~ 70.50 mm, while left Jisil is 42.97 ~ 70.84 mm and right is 43.75 ~ 72.00 mm. For females, the needling depth of left Hwangmun is 26.80 ~ 68.28 mm and right is 25.70 ~ 65.59 mm, while left Jisil is 30.94 ~ 79.06 mm and right is 28.13 ~ 77.27 mm.

원문보기
6

공동주택 리모델링 성능등급 개발방향 설정

백정훈, 김수암, 양현정

[Kisti 연계] 한국주거학회 Journal of the Korean housing association Vol.27 No.4 2016 pp.23-32

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The necessity of remodeling performance grading system is getting increased for the systematic management of existing housing stock, providing the resident's right to know and promoting the remodeling projects. A quantitative and objective evaluation method that has reflected the characteristics of remodeling must be developed because there is an aspect of having difficulty of assessment by an ordinary person as remodeling performance contains specialized details while the difficulty of applying the criteria of new buildings in terms of assessment items, criteria and methods. Accordingly, this study sets the goal as setting up the development objectives of performance grading system that has considered the remodeling characteristics. This study has analyzed the various assessment systems related to the domestic apartments as well as setting up the organization system of the remodeling performance grading system, perspectives of performance assessment and scope of assessment through literature, etc. It has also established the principles for setting up the assessment items of remodeling performance grade to present the directions for setting up assessment items and criteria.

원문보기
7

MRI를 통한 풍부혈(GV16)의 안전 자침 깊이에 대한 연구

양현정, 박해인, 이광호

[Kisti 연계] 대한침구의학회 대한침구의학회지 Vol.32 No.4 2015 pp.11-16

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Objectives : The purpose of this study is to determine the safe needling depth of Pungbu($GV_{16}$) retrospectively by using magnetic resonance imaging (MRI). Methods : We chose 114 Brain or C-spine MRI images from the Sang-Ji hospital picture archiving communication system. We measured the shortest distance from skin to cerebral dura mater passing by posterior edge of the foramen magnum on the sagittal view for the depth of Pungbu. We analyzed the differences between male and female measured values by using a student t-test. Results : The average depth of male insertion was $49.71{\pm}6.32mm$ and the shortest depth of insertion was 36.29 mm. The average depth of female insertion was $39.84{\pm}5.25mm$ and the shortest depth of insertion was 30.02 mm. The results showed a significant difference according to gender (p=0.00). Conclusions : The depth of male insertion is deeper than that of female, and the safe needling depth in the case of males is 36.29-67.35 mm, while the safe needling depth in the of females is 30.02-52.18 mm.

원문보기
8

Computed Tomography를 통한 천추(ST25)의 자침 깊이에 대한 후향적 연구

박해인, 양현정, 박상균, 이광호

[Kisti 연계] 대한침구의학회 대한침구의학회지 Vol.32 No.3 2015 pp.61-67

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Objectives : The aim of this study is to investigate the safe needling depth of Cheonchu($ST_{25}$) retrospectively by using an abdomen abdomen computed tomography(CT), and to analyze the correlation between needling depth and the characteristics of the subjects. Methods : We marked spots 50 mm away from both sides of the umbilicus in the abdomen CT and measured the vertical distance to the parietal peritoneum from the skin surface as well as waist circumference. Correlations between measured depth of Cheonchu($ST_{25}$) and variables such as age, gender and waist circumference were analyzed. Results : Average depth of the Cheonchu(n = 90) was $3.21{\pm}0.87cm$, the minimum was 1.31 cm and the maximum was 5.63 cm. A definite positive correlation was noted between needling depth and waist circumference and a significant difference was observed in needling depth according to waist circumference groups. Conclusions : Needling depth of Cheonchu($ST_{25}$) varied depending on the patient's waist circumference; safe needling depth of Cheonchu($ST_{25}$) measured by abdomen CT is 1.31~5.63 cm.

원문보기
9

절개침 치료를 이용한 안면주름 개선 8례

박해인, 양현정, 임청산, 조승필, 박상균, 이광호

[Kisti 연계] 대한침구의학회 대한침구의학회지 Vol.31 No.2 2014 pp.165-171

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Objectives : The purpose of this study was to examine and report improvements of facial wrinkles with the use of subcision. Methods : Subcision acupuncture was performed on outpatients with facial wrinkles for one to two times. Evaluation of improvement was conducted with patient-report questionnaires and comparison of before and after pictures. Items for satisfaction and adverse events were included in the questionnaire, and it was filled out after treatment. The photographs were taken three times; before the first and the second subcision acupuncture, and two to four weeks after the second subcision acupuncture. Results : The results from questionnaire and photo comparison were reported positive and satisfactory. There were minor adverse events such as bruise or conspicuousness of other wrinkles that were not treated. Conclusions : Our study results suggests that the use of subcision acupuncture is effective for facial wrinkles.

원문보기
10

시퀀스 내러티브 관점에 따른 '오설록 티하우스' 공간의 제품 전시 디자인 사례 연구

양현정, 이현수

[Kisti 연계] 한국실내디자인학회 한국실내디자인학회 논문집 Vol.23 No.1 2014 pp.61-68

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Recently, there have been increasing attempts to pursue and express feelings such as sensibilities, emotions, and impressiveness in commercial spaces. One of such methods is to apply 'storytelling' to space designs. Applicability of storytelling to a space suggests that the contents of a space can be expressed through various mediums. Portraying events and situations through a single time continuity of a story is referred to as 'narrative'. The movement of users and sequence of contents are determined by a narrative. It provides different storytelling and a sense of place to each space through various roles, such as wide association, engraving, and image formation. A narrative can lead users to engage in different perceptions and behaviors even in spaces with the same content. Thus, this study is intended to examine the impact of space marketing in line with design narratives, assuming that narratives of commercial space designs will influence the formation of brand identity. The research methods are as follows. First, the definition of narratives in space design was established by examining narrative architectures. Second, design analysis tools for commercial spaces were established from the perspective of narratives through preceding studies. Third, the design narratives of different shops under the same brand were comparatively analyzed through a case study. To carry out a case study, a commercial space of 'O'sulloc' was selected, and its brand identity was studied from the narrative standpoint. The case study involved interior designs of 7 road shops of 'O'sulloc.' Among the 7 road shops, two of them with the biggest difference in design narratives were selected, and an observation survey was done on the users as a second analysis. Through the observation survey, actual design narrative experience was analyzed in 4 steps of introduction, development, turn, and conclusion. The findings are as follows. The design method of each shop varied, and different design elements were emphasized. Among various elements, the ones that reflect the brand identity of 'O'sulloc' the best were logo, product, and shape. During the process of narratives, the characteristics of each shop and user recognition and behavior varied depending on the degree of emphasis on a particular element. It suggests that space design narratives can influence the formation of brand identity. This study provides ideal directions of developing space designs necessary for forming brand identity from the standpoint of Korean traditional culture modernization. Future studies could discuss the economic feasibility of such designs.

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카이소 블랑코 치즈를 첨가한 설기떡의 개발

이영주, 양현정, 전순실

[Kisti 연계] 한국식품영양과학회 한국식품영양과학회지 Vol.40 No.4 2011 pp.575-580

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동물성 단백질을 함유한 카이소 블랑코 치즈를 첨가함으로써 영양적인 가치를 높인 치즈 설기떡을 개발하고자 치즈 분말을 5%, 10%, 15%, 20% 첨가한 설기떡을 제조하여 수분함량, 색도, 외관 관찰, 조직감을 측정하고 관능검사를 실시하였다. 설기떡의 수분함량은 대조군이 39.15%로 가장 낮았고, 치즈 분말 첨가군들은 39.54~39.83%로 대조군과 첨가군들 간에 유의적인 차이가 없었다. 외관 관찰 결과 카이소 블랑코 치즈 분말 첨가량이 증가할수록 어둡고 노란색이 진해졌다. 색도는 치즈 분말 첨가량이 증가할수록 L(명도)은 감소하여 어두운 색을 나타내었고, a(적색도)는 치즈 분말 첨가량이 증가할수록 유의적으로 증가하였으며, b(녹색도)는 치즈 분말 첨가량이 증가할수록 유의적으로 높은 값을 나타내었다. 부착성은 5% 대체군이 14.90으로 부착성이 가장 높았고, 탄력성은 20% 대체군이 0.82로 탄력성이 가장 높았다. 점착성은 대조군이 가장 낮았고, 치즈 분말 첨가량이 증가할수록 유의적으로 증가하는 경향을 보였다(p<0.05). 응집성, 씹힘성과 복원성은 대조군과 치즈 분말 첨가군들 간에 유의적인 차이가 없었다. 특성강도 검사에서는 치즈향, 짠맛, 유지방 맛은 첨가량이 증가할수록 높게 나왔으며, 20% 첨가군에서는 다소 강하게 나타났다. 촉촉한 정도, 이취에서는 대조군이 가장 낮았고, 첨가군들은 모두 유의적으로 높았다. 소비자 기호도 검사에서는 색, 향미는 대조군이 가장 높았고, 카이소 블랑코 치즈 분말 첨가군은 보통 이상의 점수를 보였다. 부드러움은 10% 첨가군이 6.05로 가장 높았으나 유의적인 차이를 나타내지 않았다. 종합적인 기호도는 대조군 6.14로 가장 높았으며, 치즈 분말 첨가군 중에서는 10% 첨가군이 가장 높은 값을 나타내었다. 이의 결과를 고려해 볼 때 치즈 분말을 첨가한 설기떡 제조 시 기호도를 고려한 치즈 분말 10% 첨가가 적합한 것으로 사료된다.
Sulgidduk samples were prepared with substitutions of 5, 10, 15, and 20% Queso blanco cheese powder (QBCP) to rice flour basic formulation, along with a control, were then compared in terms of quality characteristics including moisture content, external surface appearance, color, textural characteristics, and sensory analysis, in order to determine the optimal ratio of formulation. Moisture contents were not significantly different among the Sulgidduk samples. For external surface appearance, as QBCP content increased, darkness and yellowness increased. With regard to color, lightness decreased with increasing QBCP content, while redness and yellowness increased. In terms of textural characteristics, hardness, gumminess, and springiness increased as QBCP content increased. The control group had significantly higher fracturability than the QBCP samples. Adhesiveness was highest at the 5% QBCP substitution level, while lowest at the 20% level. Cohesiveness was minimal the 10% QBCP sample, not significantly different among the QBCP samples. Chewiness and resilience were not significantly different among the QBCP samples. In sensory evaluation, color, flavor, and overall acceptability decreased, while softness not significantly different among the QBCP samples. Cheese flavor, saltness, milk fat taste, moistness and off-flavor increased with increasing QBCP content.

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풀아웃 하중을 받는 복합재 샌드위치 체결부의 파손거동 연구

박용빈, 양현정, 권진회, 최진호, 조현일

[Kisti 연계] 한국복합재료학회 Composites research Vol.24 No.1 2011 pp.17-23

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풀아웃 하중을 받는 복합재 샌드위치 체결부의 파손 거동을 시험으로 연구하였다. 체결의 방식과 코어의 종류를 달리하여 5종류, 총 30개의 시편에 대해 시험을 수행하였다. 시험 결과, 노멕스 하니콤 코어를 사용할 경우 코어의 강성에 의해 지배되는 전단좌굴이 먼저 발생하고, 이후 50~200% 정도의 추가적인 하중을 지지하다가, 면재가 찢어지는 최종파손이 발생하였다. 반면에 PMI 폼을 사용하면 하중 초기에 코어의 전단파손이 발생하며 지지하중도 크게 저하되는 것을 확인하였다. 파손모드를 고려한 설계의 관점에서 볼 때, 노멕스 코어를 사용할 경우 코어의 강성과 면재의 강성 및 강도를 동시에 고려해야 하는 반면, 폼 코어를 사용할 경우 코어의 전단파손 하중을 높이는 것이 가장 중요한 것으로 나타났다.
The failure of composite sandwich joints was experimentally investigated. A total of 30 joint specimens of 5 different types were tested with various fastening methods and core materials. In the NomexTM core sandwich joints, the core shear buckling was commonly observed in all the specimens which was followed by the slope change of the load-displacement curve. After the shear buckling, however, the joints carried additional loads of 50~200% over the buckling loads and then finally failed in the upper face breakage. The joints of PMI foam core showed the shear failure of the core instead of shear buckling and experienced the sharp drop of the carried load. Considering the failure modes, while both the core and face properties are important in the $Nomex^{TM}$ core joints, core shear strength seems to be the critical factor for the foam core joints.

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13

서로 다른 수분율을 갖도록 염수환경에 노출된 복합재 접착체결부의 강도

양현정, 정문규, 권진회, 최진호

[Kisti 연계] 한국복합재료학회 Composites research Vol.24 No.4 2011 pp.48-54

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본 연구에서는 탄소/에폭시 복합재 단일겹침 접착체결부의 염수 수분율이 체결부의 강도 및 파손모드에 미치는 영향을 연구하였다. 시편은 이차접착 방식으로 제작하였고, $71^{\circ}C$, 3.5% 염수환경에서 수분율 0, 0.2, 0.5, 1.0, 2.0%(포화상태)를 갖도록 노출시켰다. 수분율별 시편은 각 8개씩이고, 두 종류의 시험환경을 고려하여 총 80개의 시편에 대한 시험을 수행하였다. 시험결과 복합재 체결부의 강도는 수분율이 2%(포화상태)에 도달하면 감소하지만 그 이전 과도상태(약 1% 근처까지)에서는 오히려 증가하는 것으로 나타났다. 또한 수분율 1%까지는 고온 환경에서의 강도가 상온 강도보다 2~5% 가량 높게 나타났다. 그러나 수분 포화된 고온 환경 체결부의 강도는 상온 강도 대비 약 5% 가량 저하되는 것으로 나타났다.
The effect of moisture contents by salt water on the strength of composite single-lap bonded joints is investigated. The specimens were manufactured in an autoclave by secondary bonding and immersed in the 3.5% salt water of $71^{\circ}C$ for different durations to get various moisture contents; 0, 0.2, 0.5, 1.0, and 2.0%(saturation). A total of 80 joint specimens were tested for 5 different moisture contents and 2 temperature environments. Test results show that while the joint strengths after the saturation of moisture decrease compared to those of dry ones, the strengths of the pre-saturated joint up to 1.0% of moisture content increase in both room and elevated temperature conditions. It is also shown that the strengths of joints tested in elevated temperature are slightly higher than the strength in room temperature by 2-5% until the moisture content reaches 1 %. In contrast, the high temperature strength of the saturated joint is about 5% lower than the room temperature strength.

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14

복합 재료 폭파 방화벽 실험 연구

양현정, 강영종

[Kisti 연계] 한국복합신소재구조학회 복합신소재구조학회 논문집 Vol.1 No.4 2010 pp.6-12

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This study investigates how to apply composite material to the blast loading protection devices, mainly used for military purpose. Traditionally, earth-filled blast walls have been used for protecting important parts of military facilities and personnels. However these types of blast walls show difficulty in fabrication and portability because of their nature of heavy weight. Composite materials are known to have relatively higher specific stiffness and strength than any other metallic and earth-filled materials such as sand and gravels. Totally 4 times of TNT blast experiments were performed on the carbon/epoxy blast walls. After the end of each test, the improvement of blast wall was implemented to the structure. The test results show that the use of composite material in the blast protecting area is the one of very effective and reliable alternatives.

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15

경막외강으로 Fentanyl을 첨가한 0.125% 및 0.15% Ropivacaine 투여시 술후 진통 효과 및 부작용의 차이 비교

양현정, 이상우

[Kisti 연계] 대한통증학회 The Korean journal of pain Vol.14 No.2 2001 pp.171-175

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Background: This purpose of this study is to compare the analgesic efficacy, occurrence of motor block and other side effects of 48 hr continuous postoperative epidural infusions with 0.125% ropivacaine with fentanyl or 0.15% ropivacaine with fentanyl. Methods: Forty patients undergoing Cesarean section were randomly allocated into two groups. Both groups received epidural injection of 2.0% lidocaine 19 ml and 0.75% ropivacaine 2-5 ml with fentanyl $50{\mu}g$ for 20 minutes before surgery. Following surgery, a continuous epidural infusion using a two- day infusor was given for 40 minutes for post-operative pain control. Group 1 (n = 20) then received 0.125% ropivacaine and 6 ug/ml of fentanyl at a rate of 2 ml/h. Group 2 (n = 20) received 0.15% ropivacaine and 6 ug/ml of fentanyl at the same rate. Visual analog scales (VAS) for pain during rest and movement, sensory change and motor blockade were assessed for 48 hr after surgery. Results: There were no significant differences in VAS for pain during rest or movement. The incidence of side effects was similar in both groups. Conclusions: Using 0.125% ropivacaine with fentanyl via an epidural route provided similar pain relief and side effects as 0.15% ropivacaine with fentanyl.

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