보론 나이트라이드 나노튜브 합성 및 응용기술

조현진,김준희,김명종,Cho, Hyun Jin,Kim, Jun Hee,Kim, Myung Jong 한국진공학회 2016 진공 이야기 Vol.3 No.3

BNNTs (Boron nitride nanotubes) is an analogue of CNTs (Carbon Nanotubes) in terms of lattice structure. In BNNTs, a boron atom forms sp2 hybridized bonding with three nitrogen atoms, and so does a nitrogen with three boron atoms in the honeycomb structure. Its innovative properties, such as high thermal conductivity, neutron shielding capability, superb oxidation resistance at $900^{\circ}C$, excellent chemical resistance, and superior mechanical properties are advantageous for a wide range of applications, especially for electric device packages, neutron shielding, protective coating materials, and functional composites. In this paper, boron nitride nanotube synthesis, properties and application are reviewed.

미국 멕시코만 기름유출사고에서 본 유처리제 사용의 효용성 고찰

조현진,하창우,Cho, Hyun-Jin,Ha, Chang-Woo The Korean Society of Marine Environment and safet 2012 해양환경안전학회지 Vol.18 No.1

바다에 기름오염 사고가 발생하면 여러 가지 방제 방법 중 물리적 회수 방법을 우선적으로 사용하고 유처리제는 최후 수단으로 고려하는 경향이 있다. 유처리제는 수중으로 기름이 신속히 분산되도록 하여 해수면으로부터 제거하는 방법이다. 해수면으로부터 신속히 기름을 제거하는데 대한 유처리제의 효용성은 널리 증명되어 왔으나 아직도 대부분의 국가들은 해양환경에 미치는 독성을 우려하여 적극적인 사용을 하지 않고 있는 실정이다. 보고된 자료에 의하면 유처리제와 혼합된 기름이 기름 그 자체보다 독성이 더 크게 나타나지 않았다. 멕시코만 기름유출 사고시 미국 정부와 BP사는 최대한 해안에 기름이 도달하지 않는데 중점을 두고 해수면뿐만 아니라 수중의 기름에 대해서도 유처리제를 사용하였다. 유처리제에 대한 순환경편익을 분석하면 유처리제를 사용함으로써 기름이 생태계에 머무는 시간이 줄어들며 장기간 노출을 예방하고 야생동물에 심각한 오염을 방지하는 효과가 있는 등 다양한 연구가 진행되고 있다. 미국 멕시코만 유류오염 사고와 같은 대규모 해양오염사고의 위험이 상존하는 우리 실정에서도 과학적 결과를 바탕으로 한 유처리제 사용의 효용성과 안전성에 대한 검토가 이루어져야 할 시점이라 사료된다. Once oil has spilled, oil spill responders use a variety of countermeasures to reduce the adverse effects of spilled oil on the environment. Mechanical methods of containment and recovery are preferred as the first response when the use of other methods fail or are ineffective. In these cases, the application of oil dispersants shall be use only as a last resort. While effectiveness of dispersants in removing oil form the sea surface is proven, the use of dispersants is controlled in almost all countries due to the toxicity of their active agents and the dispersed oil on the marine environment. However, according to reports, after dispersant application, no significant toxicity to fish or shrimp was observed in the field-collected samples. Moreover, the results also indicate that dispersant-oil mixtures are generally no more toxic to the aquatic test species than oil alone. During the Deepwater Horizon Incident, dispersants were applied to floating oil and injected into the oil plume at depth. These decisions were carefully considered by state and federal agencies, as well as BP, to prevent as much oil as possible from reaching sensitive shoreline habitats. Net Environmental Benefit Analysis for dispersant use assumed that dispersants appear to prevent long-term contamination resulting absence of oil in the substrate and will benefit marine wildlife by decreasing the risk of significant contamination to feathers or fur. Further study to use dispersants with scientific baseline is needed for our maritime environment which consistently threaten huge oil spill incidents occurrence.

소아약증직결(小兒藥證直訣)에 기재(記載)된 방제(方劑)의 특성분석(特性分析)

조현진,박선동,Cho, Hyun-Jin,Park, Sun-Dong 대한한의학방제학회 2011 大韓韓醫學方劑學會誌 Vol.19 No.1

Objectives : This study aims to reveal the characteristics of formulas in "Xi$\v{a}$o' Er Y$\`{a}$o Zh$\`{e}$ng Zh$\'{\i}$ Ju$\'{\e}$. Methods : For that objectives, We analyzes formulas in "Xi$\v{a}$o' Er Y$\`{a}$o Zh$\`{e}$ng Zh$\'{\i}$ Ju$\'{\e}$. In the text, 132 formulas were described. To comprehend the formulas, we classified them as several bases. Results : After those analyses, we bring to a conclusion as follows. 1. 30 formulas are described that treated convulsive diseases (j$\={i}$ngf$\={e}$ng, ?風). Next, g$\={a}$n(疳), parasite infection, diarrhea/dysentery, dermatosis and etc were in the order. 2. Classified by the formulation, Yu$\'{\a}$nj$\`{i}$(圓劑) was the best(70 kinds of formulas, 53%). S$\v{a}$nj$\`{i}$(散劑) was a form of 41 formulas(31%). T$\={a}$ngj$\`{i}$(湯劑) and g$\={a}$oj$\`{i}$(膏劑) were a form of 5 formulas each. 10 formulas were assumed the form of w$\`{a}$iy$\`{o}$ngj$\`{i}$(外用劑). 3. We researched in-depth analysis of Yu$\'{\a}$nj$\`{i}$. As a results, dosage, additive(輔料) and the time to take of Yu$\'{\a}$nj$\`{i}$ were decomposed. Also, the formulas that treated convulsive diseases were analyzed by the herbs classification. Conclusions : Though the formulas that treated convulsive diseases were hard to application at local clinic, overall nosology of pediatrics was reflected comparatively. "Xi$\v{a}$o' Er Y$\`{a}$o Zh$\`{e}$ng Zh$\'{\i}$ Ju$\'{\e}$ was expected to play a role for reconsideration of formulas' formulation.

후두결핵의 임상양상과 진단

조현진,소윤경,손영익,Cho, Hyun-Jin,So, Yoon-Kyoung,Son, Young-Ik 대한후두음성언어의학회 2008 대한후두음성언어의학회지 Vol.19 No.1

Background and Objectives : Clinical suspicion and appropriate diagnostic procedures are essential for the timely management of extrapulmonary type of mycobacterial disease. In the hope of suggesting a suitable guideline for the early diagnosis of laryngeal tuberculosis, the authors reviewed their clinical pathways and the characteristics of patients with laryngeal tuberculosis who were managed in the recent 10 years at a single tertiary referral hospital, Samsung Medical Center. Subjects and Method : Retrospective chart review was performed for the 25 adult patients with laryngeal tuberculosis. Among 25 cases, 12 were pathologically confirmed by laryngeal biopsy and the other 13 were clinically diagnosed by cumulative clinical information; definite laryngitis on laryngoscopy, positive AFB (acid fast bacillus) smear/culture or active pulmonary tuberculosis on chest X-ray, and substantial response to anti-tuberculosis medication. Results : Chest X-ray revealed active pulmonary tuberculosis in 72% of patients (N=18/25). Sputum AFB smear/culture was positive in 95% of all tested patients (N=21/22) and in 100% of the tested patients who have stable or no evidence of pulmonary tuberculosis (N=5/5). All patients except one who had coexisting laryngeal malignancy showed considerable improvement in their subjective symptoms and laryngeal findings within the first 2 months of anti-tuberculosis medications and they achieved complete response on subsequent sputum studies, chest X-ray and laryngeal findings after $7.0{\pm}2.3$ months of the medications. Conclusion : We suggest that chest X-ray and sputum AFB smear/culture to be the first step of work-up for the patients having laryngeal tuberculosis in suspicion since laryngeal tuberculosis is largely associated with active pulmonary tuberculosis and/or sputum AFB study offers high yield even in case of primary laryngeal tuberculosis. However laryngeal biopsy must be considered in case showing unsatisfactory response to the anti-tuberculosis medication for more than 2 months.

소아약증직결(小兒藥證直訣)의 처방분석(處方分析)

조현진,박기정,박선동,Cho, Hyun-Jin,Park, Ki-Jeong,Park, Sun-Dong 대한한의학방제학회 2011 大韓韓醫學方劑學會誌 Vol.19 No.2

Objectives : This study aimed to reveal the characteristics of formulas in "Key to Therapeutics of Children's Diseases" by analysis of crude drugs that constitute formulas. Methods : To analyze the formulas, We classified the formulas to presenting symptom classification. And within that categories, the crude drugs in formulas were diagrammatized. Results : After those analyses, we brought a conclusion as like these. 1. The formulas classified into some categories that include chronic consumption disease, parasitization, digestive system disease, febricity, infectious disease, respiratory disease, skin disease, infirmity and etc. 2. We analyzed the characteristic of formulas by categorization of crude drug combination. In this way, we recognized that Qian Yi(錢乙) frequently used cold crude drugs unlike the trend of S$\grave{o}$ng(宋) dynasty doctors. 3. The prescription that described in "Key to Therapeutics of Children's Diseases" can be found in "Treasured Mirror of Eastern Medicine(東醫寶鑑)" and the other books on posterity. Conclusions : Through these researches, we verified that Qian Yi affect cold herbal and mineral drugs. This tendency of Qian Yi have an effect on the Nourish yin school. And several decades of formulas of "Key to Therapeutics of Children's Diseases" contain in part of pediatrics on "Treasured Mirror of Eastern Medicine". We reconfirmed that Qian Yi affected profound influence on the development of pediatrics and Nourish yin school.

Response Activities for Tar Ball Pollution from the 'Hebei Spirit' Oil Spill in the Southwestern Sea of Korea

조현진,김정엽,양문철,서광열,민남기,임승혁,전성근,김희식,김영화,김지훈,장선희,Cho, Hyun-Jin,Kim, Jeong-Yeop,Yang, Mun-Chul,Seo, Kang-Ryul,Min, Nam-Gi,Im, Sung-Huk,Jeon, Sung-Gun,Kim, Hee-Sik,Kim, Young-Hwa,Kim, Gi-Hun,Chang, Sun-Hee The Korean Society for Marine Environment and Ener 2009 한국해양환경·에너지학회지 Vol.16 No.4

2007년 12월 7일 발생한 허베이스피리트호 원유유출 사고로 약 12,547 kL의 기름이 해상으로 유출되어 서해안의 해안선이 광범위하게 기름으로 뒤덮이는 결과가 초래되었다. 사고발생 며칠 후부터 타르볼이 서남해안에서 관측되었으며, 이에 대한 방제를 위해 해양경찰(KCG)은 해상에서는 뜰채 및 그물끌기 방법을 이용하였고, 해안에서는 그물치기, 주워내기, 쓸어 담기 등 3가지 방제방법을 이용하였다. 그물막 치기 방법은 해안이 타르볼로 오염되는 것을 예방하는데 효과적이었으며, 사고당시의 계절이 겨울이었던 점은 타르볼이 쉽게 굳어 자원봉사자나 주민들이 주워 내거나 쓸어 담는데 큰 이점이 될 수 있었다. Approximately 12,547 kL of oil from the tanker 'Hebei Spirit' released into the western sea of Korea, which subsequently reached and covered extensive areas of the western coastlines of Korea. In the following days great numbers of tar balls hit the southwestern coast. Three different cleanup methods were used to mediate the southwestern coastline tar ball pollution by Korea Coast Guard (KCG) net setting, manual pick up, and sweeping them up. Net setting was useful in protecting coastlines from being hit by tar balls. The cold weather in winter conditions helped the tar ball response efforts because it caused them to harden, allowing them to be swept up from beaches and to be gathered up by hand.

창원시 초,중학생들의 구강진료공포 관련요인 및 공포수준에 따른 치아우식경험실태

조현진 ( Hyun Jin Cho ),김민지 ( Min Ji Kim ),하정은 ( Jung Eun Ha ),배광학 ( Kwang Hak Bae ),한동헌 ( Dong Hun Han ),김진범 ( Jin Bom Kim ) 대한예방치과·구강보건학회 2010 大韓口腔保健學會誌 Vol.34 No.1

Objectives. The purposes of this study were to measure the dental anxiety, to analyze the factors associated with dental anxiety and to investigate the caries prevalence according to the level of dental anxiety among the adolescents in Changwon city. Methods. The subjects were 4,143 elementary (5th and 6th grades) and middle school students. Among them, the number of male students was 2,246 (54.2%). All the subjects gave the responses of the questionnaire composed of a 4-item dental anxiety scale and questions on gender, age, the first dental visit and the experiences with primary prevention of dental caries. They also received an oral examination. The association of dental anxiety with demographic factors and oral behavioral factors was analyzed by the chi square method and multivariate logistic regression analysis. The differences of caries prevalence between the high and low dental anxiety groups were analyzed by Student`s t-test. Results. The prevalence of high dental anxiety might be 2.2 times higher in the female students than that in the males, 1.4 times higher in the middle school students than that in the elementary school students, 1.7 times higher in the subjects who visited dental clinic before entering elementary school than that in the subjects who had not experienced a dental visit and 1.4 times higher in the subjects who had not experienced primary oral prevention than that in the subjects who had. The subjects who felt high dental anxiety had more decayed teeth than those who felt low dental anxiety. Conclusions. The present study suggested that the dental anxiety could be reduced by primary oral prevention of caries.

고정자 코어를 이용한 2차원 SST 측정 개선 연구

조현진(Hyun-Jin Cho),박찬혁(Chan-Hyuk Park),고창섭(Chang-Seop Koh) 대한전기학회 2013 대한전기학회 학술대회 논문집 Vol.2013 No.10

조나단 에드워즈와 신화 : 원죄와 구원론의 관점에서

조현진 ( Cho Hyun Jin ) 아세아연합신학대학교 신학연구소 2021 ACTS 신학저널 Vol.47 No.-

이 연구는 조나단 에드워즈의 구원론이 동방정교회의 신화교리와 연관성이 있다는 일부 학자들의 주장에 대하여 그 유사성과 차별성을 검토하여 에드워즈의 개혁신학적 입장을 변호한다. 그들은 에큐메니칼 관심 속에서 신화교리를 “신적 속성의 전달”이나 “신적 인격들 사이의 관계에 참여”라는 관점에서 광의적으로 해석하여 에드워즈가 구원론에서 사용하는 “주입”, “실재적 연합”, “신적인 빛”과 같은 개념을 통해 신화교리와의 유사성을 주장한다. 하지만 이런 일부 유사성에도 불구하고 동방정교회의 신화교리와 에드워즈의 구원론 사이에는 커다란 신학적 간격이 존재한다. 동방정교회 신화교리는 아담의 죄책이 계승되지 않았고 하나님의 형상이 보존되었다는 낙관적인 인간 이해에 근거하여 신성에 참여할 수 있으며 신인협동적 입장을 취한다. 하지만 에드워즈는 신화교리와 일부 유사성에도 불구하고 신화교리와 충돌하는 원죄로 인한 하나님과 인간의 단절, 즉 전적 타락을 주장하며 칭의론에서 그리스도의 의의 전가를 하나님과 연합의 기초로 제시하여 신성에의 참여에 대한 창조주와 창조물 사이의 구별을 명확히 드러낸다. 이처럼 양측은 서로 구별되는 신학적 입장을 가지고 있음에도 구원의 실재로서 성령의 사역을 강조하고 있음은 주목할 만한 특징이다. This paper examinesarguments that Jonathan Edwards' soteriology is associated to the Eastern Orthodox doctrine of theosis(Deification), and analyses them both. This study looks to defend Edwards' Reformed theological position. In ecumenical interest, the arguments interpret the Orthodox doctrine in a broad sense of “God’s communicable nature” and “creature’s relational participation to divinity.” These are supported by seeing similarities between Edwards’ and the doctrine’ use of the terms of “infusion,” “real union,” and “divine light.” However, the considerable theological gap between the doctrine of theosis and Edwards’ soteriology makes their association less tenable, especially in their views of original sin and the image of God. The Eastern Orthodox Church denies Adam’s guilt as being inherited by all humans, and argues for synergism based on an optimistic view of humans. In this process, the Eastern Orthodox highlights the work of the Holy Spirit. On the other hand, Edwards affirms the Reformed position on the disconnection of the Creator and humans due to original sin and their total depravity. In his doctrine of justification, Edwards affirms the Reformed forensic character that holds union with Christ based on the imputation of Christ’s righteousness. Although distinguished from each other, it is notable that both sides emphasize the importance of the work of the Holy Spirit as the reality of salvation.

로열티 프로그램의 명과 암

조현진(Cho, Hyun-Jin) 한국경영교육학회 2021 경영교육연구 Vol.36 No.5

[연구목적] 본 연구는 온라인 환경에서 로열티 프로그램이 내포하고 있는 이중적인 메커니즘을 심도있게 분석하고자 하였다. 구체적으로 로열티 프로그램을 양날의 검으로 간주하고 유형적 보상과 특별우대가 감사와 특권 및 기회주의 행동에 미치는 차별적인 영향을 평가하였다. [연구방법] 본 연구는 최근 3개월간 온라인 구매 경험이 있는 대학생을 대상으로 하였다. 설문은 총 277부를 최종 분석에 이용하였고, 가설을 검증하기 위해 구조방정식 모형분석을 실시하였다. [연구결과] 유형적 보상은 감사에 정의 영향을 미치고 있지만, 특권에는 유의한 영향을 미치지 않는 것으로 나타났다. 특별우대가 감사에 미치는 영향은 유의하지 않게 나타났지만, 특권에는 정의 영향을 미치는 것으로 확인되었다. 그리고 감사는 특권에 정의 영향을 미치는 것으로 밝혀졌다. 한편 감사는 기회주의 행동을 억제하는데 한계가 있지만, 특권은 기회주의 행동을 증대하는 것으로 나타났다. [연구의 시사점] 본 연구는 관계마케팅 노력에 대한 보다 포괄적인 이해를 제시하며, 그 이면에는 강화된 고객의 힘이 기업성장을 저해하는 비윤리적인 행동을 초래한다는 점을 시사한다. [Purpose] This study aims to demonstrate the dual mechanism of loyalty programs in online environments. This paper considers loyalty programs as a double-edged sword and proposes customer gratitude of positive effects and customer entitlement of negative effects. [Methodology] The data were collected from undergraduate students who had made online purchases in the last three months. A total of 277 questionnaires were used for data analysis. Structural equation modeling was used to test the hypotheses. [Findings] Tangible rewards were positively related to gratitude, but they didn’t significantly affect entitlement. Preferential treatment didn’t significantly affect gratitude, while it was found to have a positive effect on entitlement. Gratitude didn’t significantly reduce opportunistic behavior, but entitlement was found to increase opportunistic behavior. [Implications] This study highlights a careful approach associated with developing loyalty programs. Study results suggest that the success of loyalty programs depends on company’s ability to minimize customer entitlement.