야뇨증 환아들의 심리사회적 특성에 대한 다기관 연구 : 행동 및 정서 문제를 중심으로

조수철,김재원,신민섭,황준원,한상원,박관현,이상돈,김경도,김건석,서홍진,이유식,정재용,김영균,문두건,남궁미경,한창희,조원열,김영식,배기수,이종국,정우영,신의진 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

Objectives : The aim of this study was to examine the behavioral and emotional problems associated with nocturnal enuresis in Korean children. Methods : Three hundred eighteen children with nocturnal enuresis, together with their parents, completed the Child Behavior Checklist (CBCL), Disruptive Behavior Disorder Scale according to DSM-IV (DBDS), Children's Depression Inventory (CDI), State-Trait Anxiety Inventory for Children (STAIC), and Piers-Harris Children's Self-Concept Scale (PHCSC). Ninety-three normal students were selected as the control group. Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in the nocturnal enuresis group according to the CBCL results. The nocturnal enuresis group also scored significantly higher in the ADHD and ODD profiles of the DBDS. The nocturnal enuresis group was more depressed and anxious than the control group according to the results of the CDI and STAI. The mean score of the PHCSC was significantly lower in the nocturnal enuresis group when compared to the normal control group. Conclusion : The results of this study suggest that children with nocturnal enuresis in Korea have clinically relevant behavioral and emotional problems. The findings support the link between nocturnal enuresis and psychopathology in Korean children.

구조방정식모델을 통한 활동과 통행의 인과관계모델

김재국,이진우,박병선 東新大學校 工業技術硏究所 2002 工業技術硏究 Vol.8 No.-

Although, we could get more reasonable results from the transportation behavior study based on activity diary data, there were not make rapid progressing because of the absence of analytical methodology. Therefore, we set up causal structure model of activity participation, trip generation, and travel time by the structural equation modeling to conquer of the absence of analytical methodology. Results of our studies show that activity-diary can be analyzed by the structural equation modeling. It will be a good study momentum in the behavioral study based on activity diary which had not been generalized because of the absence of analytical methodology.

과학소설의 사이버문학적 가능성 고찰

김재국 청주대학교 대학원 1997 우암논총 Vol.18 No.-

복수일의 활동일지에 근거한 교통행동분석

金在國,李鎭友 東新大學校 工業技術硏究所 1997 工業技術硏究 Vol.3 No.-

Most models and analysis of urban travel behavior focus on trying to explain variations in travel behavior of different behavior in terms of the characteristics of those individuals and their environment. Also, the analysis is typically based on a single day record of each individual' travel. But, developments in travel behavior analysis are leading to a greater awareness of the need to examine day-to-day variability in travel behavior. This paper analyzed dynamic characteristics, intrapersonal variability, and inter personal variability in urban travel behavior using activity diaries collected by 7 consecutives days in Gwangju. The analysis shows that, interpersonal variability as well as intrapersonal variability cannot be neglected in day-to-day variability of travel behavior.

選好意識데이타에 의한 交通手段의 選擇要因 分析

金在國,李鎭友 東新大學校 工業技術硏究所 1994 工業技術硏究 Vol.1 No.-

As for the travel demand analysis of the past, forcasting has been conducted by the use of revealed preference(RP) informations about actual or observed choice made by individuals. Forcasting method using RP data needs implict assumptions that there will be no remarkable change in existing transport conditions. However, in case of occuring the great change in existing conditions or adding a new choice-set of hypothetical options, it is very difficult to predict future travel demand. Fortunately in recent year, especially in the mode choice analysis, it has been preceived that the importance of individual performance data using ststed preference(SP) experiments as well as RP data. Since SP experiments present respondent with various hypothetical alternatives, which are produced by a combination of a number of different attribute levels, and ask them to indicate a preference, it is possible to analyze travel behavior under a situation of potential environment change such as proposed alternative mode of transportation. The basic problem, however, remains that SP are not consistent with the actual travel behaviors and the research reports has not been sufficiently from models estimated using SP data. Under this background, This study aims to analyze the factors affecting the mode choice behavior by the variance analysis of orthogonal-arrays-table, the transfer intention data and the mode choice model using SP data for the new subway system in Kwang-Ju For this analysis, we assumed subway operations in the Gwang-Ju, and set up a choice-set of hypothetical options based on Experimental Design Method.

選好意識데이타와 轉換價格데이타의 비교

金在國,李鎭友 東新大學校 工業技術硏究所 1996 工業技術硏究 Vol.2 No.-

In the mode choice analysis, since SP experiments present respondent with various hypothetical alternatives, which are produced by a combination of a number of different attribute levels, and ask them to indicate a preference, it is possible to analyze travel behavior under a situation of potential environment change such as proposed alternative mode of transportation. This study is to compare stated preference (SP) data with transfer price (TP) data by comparison of commulative transfer ratio from passenger car into medium rail transit. For this analysis, we assumed subway operations in the Gwang-Ju, and set up a choice-set of hypothetical options based on Experimental Design Method. As the result, the preference of same set of individuals by SP and TP questions might not be consistent with each other. This means that stated preferences are changable by difference of survey merhods. The updating of SP responses by the ultimatic condition of TP data also contributed the higher internal validity of SP model.

펠렛형 제올라이트를 이용한 이산화황의 흡착특성

이재희,김정국,양희철,김준형,이제근 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.1

KA, NaA, CaA 및 NaX 제올라이트가 충전된 실험실 규모의 흡착층을 이용하여 SO_2 유입농도, 충전층 높이 및 공간속도를 변화시키면서 SO_2 흡착실험을 수행하였다. 평형흡착량과 파과시간 모두 제올라이트 세공크기에 따라 KA, NaA, CaA, NaX 순으로 증가하였다. NaX상에서 SO_2를 흡착시킬 경우 SO_2 유입농도 504ppm 이하에서 파과시간은 증가하나 역시 물질전달범위도 증가하여 물질전달 속도는 감소하였다. Wheeler 식으로부터 제올라이트상의 파과시간에 대한 평형흡착량, 공간속도 및 1/C_0의 관계를 확인한 결과, 504ppm 이상보다 504ppm 이하의 저농도에서 파과시간이 상대적으로 증가하였다. The experimental of SO_2 adsorption, with varying SO_2 concentration, packed-bed depth, and space velocity, was carried out using a lab-scale fixed bed with zeolites, such as KA, NaA, CaA and NaX. Both of an equilibrium adsorption capacity and a breakthrough time increased with zeolite pore size, in order of KA, NaA, CaA and NaX. Breakthrough time of NaX increased under SO_2 concentration of 504 ppm, but mass transfer rate decreased due to expansion of mass transfer zone. Breakthrough time is relatively increased in the low gas concentration(<504 ppm) more than high concentration(>504 ppm), which is proved by the effects of equilibrium adsorption capacity, space velocity and l/C_0 for the zeolite from the relationship of Wheeler equation.

현역 군인 발생을 중심으로 본 2000년도 국내 삼일열 말라리아 발생 현황

박재원,김영아,염준섭,유정식,양병국,채종일 대한감염학회 2001 감염 Vol.33 No.4

Background : Since 1997, the annual case occurrence of vivax malaria in the Republic of Korea have exceeded 1,000 cases since 1997. The military is thought to be an important source of the current outbreak. We collected various informations about malaria cases (soldiers, veterans and civilians) which occurred in 2000, and analyzed the characteristics of the current outbreak. Methods : Informations about malaria cases of soldiers, veterans and civilians, including name, age, sex, day of onset, region, etc., were collected through the National Institute of Health. Results : Out of total 4,141 cases, 1,288 (31.1%) occurred in the military, 1,273 (30.7%) occurred among the veterans, and 1,580 (38.2%) occurred among civilians. The monthly case occurrence reached its peak in early August. Areas such as Cheolwon, Yeoncheon and Paju showed the highest prevalence. Conclusion : It is considered that the current malaria outbreak has escaped from the exponential growth phase, however, more attention should be paid to prevent further spreading of malaria infection. (Korean J Infect Dis 33:280∼284, 2001)

다이아몬드용 자동연마기의 성능평가

오재국,김우순,김동현 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-

The present study deals design and manufacture of automatic polishing machine that can cut diamond to have 58 facets in a brilliant cutting which has been hardly achieved by a conventional manually operating polishing machine. Upon the 3-dimensional Sarin M/C test and analysis on the diamond processed by the automatic polishing machine developed in this study its proportion and finishing turned out to be better than the diamond processed by the conventional method, by being rated as "very good".

악성 점막하 종양과의 구별이 어려웠던 Gastritis Cystica Profunda 1예

선제형,박진석,한민석,김수항,김우진,박인형,이숭,유종선,박찬국 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.3

Gastritis cystica profunda (GCP) is a rare disease characterized by gastric foveolae elongation along with hyperplasia and cystic dilatation of the gastric glands extending into the tissue beneath the submucosa. GCP mainly develops at the gastroenterostomy stoma but can arise in a stomach that has not undergone surgery. The proposed pathogenesis is related to chronic inflammation, ischemia and the presence of a foreign body. GCP may present as a submucosal tumor, Polyp or a giant gastric mucosal fold. Endoscopic ultrasonography (EUS) is an effective diagnostic method for differentiating GCP from protruding and elevated gastric lesions. We report a case of GCP along with the endoscopic and EUS findings that were indistinguishable from a malignant submucosal tumor.