지난 2년간의 학회지 "신경정신의학" 심사 평가보고

김찬형,김세주,김도관,김성곤,박원명,송동호,박용천,이영문,오강섭,정영철,이상열,김주한,이동영,이헌정,함병주,김율리,김문두,김정진,이강욱,천근아,김재진,홍진표,홍승철 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.6

청소년 인터넷 중독 검사 방법의 통계적 고찰 및 개선 -Young의 척도를 중심으로

박찬정 ( Chan Jung Park ),김형철 ( Hyung Chul Kim ),고영민 ( Young Min Ko ),현정석 ( Jung Suk Hyun ),김철민 ( Cheol Min Kim ) 한국컴퓨터교육학회 2010 컴퓨터교육학회 논문지 Vol.13 No.4

국내외에서 이루어진 기존의 인터넷 중독 검사에 대한 연구는 다양하며 방대하지만, 대부분의 연구가 중독도 검사를 위한 항목추출이거나 항목들을 이용한 중독도 분석이었지 항목간의 분석을 통한 차별화는 이루어지지 않았다. 본 논문에서는 리즈렐과 데이터마이닝 기법을 이용하여 Young의 인터넷 중독 검사방법을 고찰하고 문제점을 지적한 후, 검사 방법에 대한 대안을 제안한다. 이를 위해 Young의 척도를 이용하여 청소년 440명을 대상으로 설문을 실시하고, 요인분석을 통해 Young 척도의 문제점을 분석한다. 또한, 데이터 마이닝 알고리즘인 J48 및 PART를 이용하여 설문문항들 중에서 인터넷 중독도를 구분 지을 수 있는 항목들을 선별하고 이를 기반으로 인터넷 중독 학생들을 진단하고 처방하는데 활용하는 방법을 제안한다. So far, the researches about the Internet addiction testing are diverse and enormous. However, since the testing factors have the same importance, there is no discrimination among the factors. In our paper, we analyze the problems of the existing researches by using Lisrel and data mining algorithms. Next, we propose an alternative for the Internet addiction testing. In order to accomplish these, we make an questionnaire consisted of Young`s test and then, we asked to 440 primary and secondary school students. In addition, we analyzed the problems of Young`s test with factor analysis and then, we distinguish more important items from others with J48 and PART. Finally, based on this analysis, we propose a method to diagnose addicted students and prescribe them.

Elderly kidney transplant recipients have favorable outcomes but increased infection-related mortality

임정훈,Lee Ga Young,Jeon Yena,Jung Hee-Yeon,Choi Ji Young,CHO, JANG-HEE,Park Sun Hee,김용림,Kim Hyung-Kee,Huh Seung,유은상,Won Dong Il,Kim Chan-Duck 대한신장학회 2022 Kidney Research and Clinical Practice Vol.41 No.3

Background: The number of elderly patients with end-stage kidney disease has been increasing, but the outcomes of kidney transplants (KT) remain poorly understood in elderly patients. Therefore, we evaluated the clinical outcomes of elderly KT recipients and analyzed the impact of elderly donors. Methods: This retrospective cohort study included patients who underwent KT between 2000 and 2019. KT recipients were divided into four groups according to a combination of recipient and donor age (≥60 or <60 years); elderly recipients: old-to-old (n = 46) and young-to-old (n = 83); young recipients: old-to-young (n = 98) and young-to-young (n = 796). We compared the risks of mortality, graft failure, and acute rejection between groups using Cox regression analysis. Results: The incidence of delayed graft function, graft failure, and acute rejection was not different among groups. Annual mean tacrolimus trough level was not lower in elderly recipients than young recipients during 10-year follow-up. Mortality was significantly higher in elderly recipients (p = 0.001), particularly infection-related mortality (p < 0.001). In multivariable Cox regression analysis, old-toold and young-to-old groups had increased risk of mortality (adjusted hazard ratio [aHR], 2.89; 95% confidence interval [CI], 1.14– 7.32; p = 0.03; aHR, 3.06; 95% CI, 1.51–6.20; p = 0.002). However, graft failure and acute rejection risks were not increased in elderly recipients. Conclusion: In elderly recipients, graft survival and acute rejection-free survival were not inferior to those of young recipients. However, mortality, especially risk of infection-related death, was increased in elderly recipients. Thus, low immunosuppression intensity might help decrease mortality in elderly recipients.

New Stress-Strain Model for Identifying Plastic Deformation Behavior of Sheet Materials

김영석(Young Suk Kim),팜콕트완(Quoc Tuan Pham),김찬일(Chan Il Kim) Korean Society for Precision Engineering 2017 한국정밀공학회지 Vol.34 No.4

In sheet metal forming numerical analysis, the strain hardening equation has a significant effect on calculation results, especially in the field of spring-back. This study introduces the Kim-Tuan strain hardening model. This model represents sheet material behavior over the entire strain hardening range. The proposed model is compared to other well known strain hardening models using a series of uniaxial tensile tests. These tests are performed to determine the stress-strain relationship for Al6016-T4, DP980, and CP Ti sheets. In addition, the Kim-Tuan model is used to integrate the CP Ti sheet strain hardening equation in ABAQUS analysis to predict spring-back amount in a bending test. These tests highlight the improved accuracy of the proposed equation in the numerical field. Bending tests to evaluate prediction accuracy are also performed and compared with numerical analysis results.

열등의식의 문학적 탐구 : 김승옥의 「더 많은 덫을」에 대하여

김영찬(Kim Young-chan),김승옥 한국근대문학회 2010 한국근대문학연구 Vol.11 No.1

김승옥은 1966년 대중적 상업주간지인 『주간한국』이 지령 100호 기념으로 지식인 100명에게 투표를 의뢰하여 발표한 ‘오늘의 작가’에 선정된바 있다. 김승옥의 소설 「더 많은 덫을」은 그 선정결과가 발표된 『주간한국』 100호 기념호에 〈100인이 선정한 ‘오늘의 작가’의 ‘오늘의 작품’〉이라는 타이틀 아래 실린 것이다. 김승옥의 소설 「더 많은 덫을」은 그동안 독자의 기억에서나 문학연구의 영역에서나 유실되었던 작품이다. 그러나 「더 많은 덫을」은 ‘서울에서 산다는 것’에 임상심리 보고서로서 중요한 가치를 지니고 있을 뿐 아니라, 이 시기 그의 다른 작품과 비교할 때 작품의 질에서도 당연히 뒤떨어지지 않는다. 이 소설에서 주목되는 것은 전라도에서 상경한 촌놈으로서의 자의식, 그리고 그와 얽혀 있는 당대 한국사회의 사회문화적 환경과 사회심리의 표정, 그에 대한 심리적 반응 등이 거의 날것 그대로라 할 만큼 생생하게 증언되고 있다는 점이다. 그런 측면에서 이 소설은 김승옥 소설의 배면에 은밀하게 깔려 있는, 열등의식 가득찬 고단한 ‘상경 촌놈’의 내면풍경을 그 특유의 미려한 장식을 걷어내고 더욱 깊숙이 들여다볼 수 있는 흥미로운 자료로서의 가치도 높다. 김승옥의 소설 「마지막 덫을」은 비루한 자기보존을 위해 남모르는 안간힘을 써야 하는 소외된 열등생의 불행하고 눈물겨운 자의식의 분투를 보여준다. 그런 측면에서 이 소설은 너무나 욕된 생활 속을 죄충우돌 살아가야 했던 열등한 상경 촌놈들의 ‘서울살이’에 대한 또 하나의 눈물겨운 임상심리 보고서다. 그런 가운데서도 이 소설은 김승옥의 여타 임상심리 보고와 의미 있는 차이를 보여준다. 그것은 ‘열등생’이라는 김승옥 고유의 토픽이, 열등감의 사회경제적 배후와 지역차별에 대한 문제의식과 결합되면서 한층 구체적이고도 집중적으로 다루어지고 있다는 점이다. 더욱이 전라도 출신에 대한 차별과 편견이라는, 사회적으로 중요하지만 문학에서 쉬 발설되지 않았던 민감한 문제를 소설 속으로 적극적으로 끌고 들어온 것 자체만으로도 이 소설이 갖는 문제성은 크다. 무엇보다 이 소설이, 소외된 주변의 욕망을 관리하는 동시에 식민화하는 1960년대 한국사회 근대화 과정의 심리적 결과를 화자의 복잡 미묘한 갈등의 굴곡을 통해 정면으로 포착하고 있다는 사실은 중요하다. 그런 측면에서 이것은 ‘서울에서 산다는 것’에 대한 김승옥식 임상심리 보고의 연장이자 그 사회문화적 구체화라 할 만하다. Seung-ok Kim was selected in 1966 as a “writer of the day” in the poll made by a popular magazine Weekly Korea; his fiction 「Even More Traps」 was published in the magazine as a "fiction of today novelist of today" selected by one hundred people. 「Even More Traps」 has been neglected by common readers and literary scholars. However, it is significant as a report of clinical analysis of ‘living or surviving in Seoul’ and comparable to his other works in terms of quality. What draws our attention in the work is that the psychological dynamism of the main character is so vividly described naked: his self-consciousness as a churl from the Cholla Province, a wretched rural area in Korean history; his psychological response to the socio-cultural milieu and mentality of the Korean society at the moment. In this respect, 「Even More Traps」 can be called a hard-boiled testimony of the inner landscapes of a churl who has come to Seoul, undecorated with the writer’s characteristic refined style. The writer carries out a more detailed profound investigation of his own topic of ‘losers’, regarding the socio-economic backgrounds of inferiority complex and the criticism of unjust discriminations against the rural. Furthermore, it is noteworthy his attempt to shed light on the sensitive issue-the discrimination and prejudices of those who are from the Cholla Province, for it has been neglected in literature in spite of its social connotation. More fundamentally, it is important that 「Even More Traps」 faces the psychological outcomes of the modernization of Korean society in 1960’s by the means of the dramatization of sophisticated inner conflicts of the narrator; it is a detailed version of the writer’s signature analysis of society from a clinical perspective.

유사한 전자상태를 가지는 타이타늄 합금의 영률에 베타 안정화 원소 함량이 미치는 영향

유가영 ( Ga Young Yoo ),박찬희 ( Chan Hee Park ),홍재근 ( Jae Keun Hong ),김승언 ( Seong Eun Kim ),강남현 ( Seong Eun Kim ),염종택 ( Jong Taek Yeom ) 대한금속재료학회(구 대한금속학회) 2013 대한금속·재료학회지 Vol.51 No.4

Previously, Gum Metal (Ti-24(Nb + Ta + V)-(Zr, Hf)-O (at%)) exhibiting an ultralow Young`s modulus, ultrahigh strength and super elasticity was developed by Saito et al., who proposed that three electronic magic numbers, an average electron/atom (e/a) ratio of 4.24, an average bond order (Bo) of about 2.87, and an average “d” electron-orbital energy level (Md) of about 2.45 eV, should be satisfied simultaneously to obtain such “super” properties. The purpose of this study was to find new alloy systems possessing those properties and to examine the effect of beta equivalent content ([Mo]eq) on Young`s moduli of new alloys having the same three electronic numbers mentioned above. It was found that not only three electronic numbers but also [Mo]eq should be considered to obtain a similar Young`s modulus and hardness with respect to the Gum Metal.

영상처리를 통한 접합면 검사 시스템

김영동,김아현,김영수,강원찬,정헌 조선대학교 에너지.자원신기술연구소 2003 에너지·자원신기술연구소 논문지 Vol.25 No.2

In this paper, we present the new method for joint aspect inspecting system. We use the image processing and laser maker for light source. We can find the matrial joint status through processing the line pattern which is made by laser maker. To get the line pattern, in first, we had done the preprocss of threshold. If the shape of line had over two segments, then the joint status is abnormal. We show our system efficency by experiment on tire facility.

영골(靈骨).강압혈(降壓穴) 자극(刺鍼)이 혈압(血壓)에 미치는 영향(影向)

임영남,심성용,한지완,고호연,박종형,한양희,전찬용,김동우,Yim, Young-Nam,Sim, Sung-Yong,Han, Ji-Wan,Ko, Ho-Yeon,Park, Chong-Hyeong,Han, Yang-Hee,Chun, Chan-Yong,Kim, Dong-Woo 대한한방내과학회 2004 大韓韓方內科學會誌 Vol.25 No.2

Objective : The purpose of this study is to evaluate the clinical effect of the non-pharmacological anti-hypertension method, acupuncture, for hypertensive patients. Methods : 26 patients diagnosed with hypertension were each treated by one of three methods: an anti-hypertension drug(adalat soft capsule), venepuncture, and acupuncture. In cases of rising blood pressure, patients were treated by their one of the three methods, and blood pressure was measured at regular intervals. Result : As for the group of acupuncture treated patients on Young-gol(ling-gu) and Gang-ap-hyul(jiang-ya-xue), readings dropped 18.0mmHg in systolic blood pressure and 6.50mmHg in diastolic blood pressure. This was a greater effect than that seen in the venepuncture treated patients. Blood pressure checked one hour after acupuncture treatment showed a greater difference than blood pressure checked after thirty minutes. Conclusion : Safe reductions in blood pressure were observed through the non-pharmacological method of acupuncture on Young-gol(ling-gu) and Gang-ap-hyul(Jiang-ya-xue).

HID 램프용 디지털제어 전자식 안정기에 관한 연구

김영동,강원찬,김남오,김형곤,김병철 조선대학교 에너지.자원신기술연구소 2004 에너지·자원신기술연구소 논문지 Vol.26 No.1

In this paper, digitally controlled electronic ballast for the HID lamps driven by proposed frequency conversion method is described. This electronic ballast consists of a buck converter, a low frequency square wave full bridge inverter, a high voltage pulse generator for the lamp ignition, an over current protection circuit and an 8-bit microcontroller. The fuzzy logic digital control operation is carried out by the 8-bit microcontroller. In spite of the limited control bandwidth caused by low operation speed of the 8-bit microcontroller, the good control performance for the constant lamp current in the warm-up period is obtained using the proposed frequency conversion driving method. The HID lamp is controlled in a constant current mode during the lighting warm up process and is controlled in a constant power mode during lighting steady state. A controlled variable power mode is used to extend the lamp lifetime.

환경농업조성지구내 용수원 및 채수시기별 수질비교

김찬용,김창배,김종수,서영진,윤재탁 한국환경농학회 2002 한국환경농학회지 Vol.21 No.3

A study was conducted to investigate the seasonal changes in water quality of watershed in the Agricultural Environment Promotion Zone. samples collected were 12 GW (ground water), 2 IW (irrigation water), 2 SW (stream water) in An-Doug City, 4 GW, 6 IW, 11 SW in Young-Yang Gun, and sampling was conducted separately during dry and rainy season. In the ground water, EC and ionic species, except pH, were higher than those in stream water, and especially NO_3-N concentration exceeded the limitation of drinking water. Concentration of ions decreased as the sampling depth was far from the soil surface. During a rainy season, the concentrations of NO_3-N and K In the stream water were slightly higher than those during season. COD was lower during dry season in Yong-Yang, while the trend was contrasted to An-Doug. These results suggest that ground water was polluted by fertilization and compost while streamwater was polluted by loss of soil and organic during the rainy season. Principal chemical components related with changing water quality were EC, NO_3^-, Ca, Mg, Na, CI^-, SO_4^- in ground water, whereas NH_4-N, K, Mg, CI^-, SO_4^- in stream water.