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 Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in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.

성견에서 수직적 골결손부에 골이식후 교정력 적용시기에 따른 치주조직의 반응

이상열,황현식,김경근 전남대학교 치과대학 2000 전남치대논문집 Vol.12 No.1

The aim of this study was to investigate the periodontal response according to the timing of orthodontic force application after bone graft into the angular bony defect. Nine dogs were divided into three groups, 2, 4, and 6 weeks, according to the timing of orthodontic force application after bone graft. Periodontal angular bony defects were created surgically at the distal aspect of both maxillary third incisors. Two weeks later, flap operation was performed to eliminate inflammation and reference notch was made on the root surface at the level of the bottom of each defect. Demineralized freeze-dried bone was implanted on the left side whereas only debridement was done on the other side. Experimental tooth movement was executed during 8 weeks on both graft and non-graft sides. After 2 weeks of retention period, animals were sacrificed for histologic specimens. The results were obtained as follows: 1. New bone formation was more pronounced in the graft side than in the non-graft side in all experimental animals. 2. In the 6-week group, new bone and cementum formation was observed in more than half from the notch to the cemento-enamel junction, and the zone of connective tissue attachment was found without apical migration of junctional epithelium. 3. In the 4-week group, the amount of new bone formation was smaller than in the 6-week group whereas the overall remodeling pattern was similar. 4. New bone formation was confined to around the notch and the junctional epithelium migrated apically to the level of the notch with no connective tissue attachment and cementum formation in the 2-week group. The results of the present study suggest that periodontal response may be influenced by the timing of orthodontic force application after bone graft into angular bony defect.

농작물 해충 및 진균류 방제를 위한 방선균의 분리 및 동정

이은정,강경돈,황교열,김두호,김신덕,성수일 한국잠사학회 1998 한국잠사곤충학회지 Vol.40 No.1

Twenty seven out of ca. 5,000 actinomycete strains, which were isolated from soil collected throughout the country, showed antimicrobial effects against fungi, Rhizopus stronifer (ATCC6227a), Rhizoctonia solani (KCCM 11271) and yeast, Candida albicans(ATCC10231). From these antifungal microorganisms, we further selected seven strains which seemed to produce insecticidal substances with in vivo test, using silkworm, Bombyx mori and beet armyworm, Spodoptera exigua. Morphological and biochemical experiments revealed that three strains out of seven were streptomyces. Further investigations on the physical and chemical properties of these antifungal and insecticidal substances are now in progress.

C54x DSK를 이용한 디지털 오실로스코프의 구현

이경화,정혜윤,신건일,권호열 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-

In this paper, a digital oscilloscope is implemented using a C54x DSk with PC. This digital oscilloscope has some basic measurement functions with a capability to change Volt/Div and Time/Div as well as to set appropriate trigger level automatically. Also several stored waveforms and current input waveform can be displayed simultaneously. Experimental results show that our approaches are versatile and cost-effective particularly in educational installment.

용접결함의 형상인식을 위한 분류기 알고리즘의 성능 비교

김재열,김영석,김창현,양동조,이창선,송경석 한국비파괴검사학회 2003 학술대회 논문집 Vol.- No.1

In this study, we compared backpropagation network(BPNN) with probabilistic neural network(PNN) as the classification algorithm of welding flaws. For this purpose variables are appied the same to two algorithm. Here, feature variable is composed of time signal itself and frequency signal itself. Those are ultrasonic signals reflected on welding flaws. Through this process, we comfirmed advantages/disadvantages of two algorithms, identified application methods of two algorithms to classification methods of welding flaws. These advantages/disadvantages and application methods are based on theoretical backgrounds.

우심방과 우심실의 거대 심장 혈관종 1예

김제열,조상호,김건일,허경림,김현숙,조구영,최영진,이원용,임종윤 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.2

Cardiac tumors, especially the primary tumors involving any part of the heart are extremely rare and its relative incidence has been reported to be approximately 0.02%. We report a patient with huge cardiac hemangioma who complained of shortness of breath, general weakness, and dizziness, Imaging study by echocardiography and computed tomography of thorax revealed a huge lobulating mass like a bunch of grapes in the right chamber of heart. The surgical exploration of thorax was performed and a histological diagnosis of spindle cell hemangioma was obtained by microscopy. The patient was treated by surgical resection of the tumor and doing well after surgery. Our experience indicated that prompt diagnosis and treatment of cardiac hemangioma is imperative for patients' prognosis.

糖尿病 集團檢診에 대한 費用效果分析

천병렬,박재용,감신,이경은 大韓産業醫學會 1995 대한직업환경의학회지 Vol.7 No.2

대구 지역의 일개 종합병원에서 실시한 1992년 건강 검진 결과 중, 20세 이상인 성인들을 연구 대상자로 하여 근로자 검진과 공무원 검진 자료에서 당뇨병 집단검진 항목 중 요당, 공복혈당 그리고 식후혈당 검사 결과와 공무원 검진 자료에서 성, 연령, 신장, 그리고 체중에 관한 자료를 수집하여 분석하였다. 당뇨병 집단검진의 효율성을 비용효과분석 기법으로 비교하기 위하여 기존의 근로자 검진 방법과 공무원 검진 방법, 기존의 근로자 검진 방법에서 2차 검사 항목 중 요당 검사를 제외한 대안 (A), 공복혈당검사만 직장에서 실시하는 대한 (B), 식후혈당검사만 직장에서 실시하는 대안 (C), 공복혈당검사를 직장에서 실시하고 음성자에게 식후 혈당검사를 직장에서 실시하는 대안 (D), 식후혈당검사를 직장에서 실시하고 음성자에게 공복혈당검사를 직장에서 실시하는 대안 (E), 그리고 요당검사만 직장에서 실시하는 대안 (F)에 대해 당뇨병 유소견자당 투입 비용을 산출하였다. 각 대안별 유소견자당 투입 비용은 기존 근로자 검진 방법이 37,767원, 기존 공무원 검진 방법이 50,441원, 대안 (A)는 37,433원, 대안 (B)가 27,645원, 그리고 공복혈당 음성일 때 식후혈당 양성인 비율을 2%로 고정한 경우의 대안 (C)가 28,541원, 대안 (D)가 38,458원, 그리고 대안 (E)는 38,488원이었다. 그런데 대안 (F)의 경우 양성예측도가 93%인 경우 유소견당 투입 비용이 18,689원으로 가장 적었지만, 양성예측도가 20%일 때는 88,106원으로 가장 많았다. 양성예측도가 64% 이상일 때 대안 (F)가 가장 비용효과적이었다. 결국 대안 (B)와 대안(F) 둘 중 하나가 가장 효율적인 검진 프로그램으로 생각되며 이는 요당 검사의 양성예측도에 의해 달라질 것이다. To evaluate the efficiency of the diabetes mellitus screening program, the records of screening examinations for general workers and official workers at a general hospital in Taegu city were analysed. Six alternatives of the diabetes mellitus screening program were compared in terms of cost-effectiveness. The screening program I which was already used in the examination for general workers, screening program II for official workers, alternative program (A) which was the same method as screening program I without urine sugar test for the second examination in a hospital, alternative program(B) with the test for fasting blood sugar(FBS) in a worksite, alternative program (C) with the test for postprandial blood sugar(PPBS) in a worksite, alternative program (D) with the first test for FBS and the second test for PPBS of negatives for FBS test in a worksite, alternative program (E) with the first test for PPBS and the second test for FBS of negatives for PPBS test, and alternative program (F) with the test for urine sugar in a worksite. To compare the cost-effectiveness between alternatives, the cost (Won) per positive detected for diabetes mellitus (cost-effectiveness ratio) was calculated. The cost per positive detected was 37,767 Won for screening program I, 50,441 for screening program II, 37,433 for alternative program (A), 27,645 for alternative program (B), and if it was assumed that the positive rate for negatives of FBS would be 2.0%, 28,541 for alternative program (C), 38,458 for alternative program (D), 38,488 for alternative program (E). However, that for alternative program (F) was varied with the positive predictive value(PPV) of urine sugar test for diabetes. The cost per positive detected was lowest(18,689 Won) when PPV when PPV was 93%, whereas, highest (88,106) when PPV was 20%. The critical value of PPV was 64%. The alternative program (F) was most efficient when PPV was 64% or more. Considering the prevalence for diabetes mellitus, PPV for urine sugar test, and feasibility of screening examination, alternative program (B) will be proved as the most efficient screening program. In conclusion, either program(B) or program(F) will be the most efficient method for screening a large population depending on the positive predictive value of fasting urine sugar test.

근골격계 질환 예방을 위한 재생타이어 트레드 버핑작업 개선에 관한 연구

김재열,한재호,이연신,김항우,오성민,송경석 한국공작기계학회 2004 한국공작기계학회 춘계학술대회논문집 Vol.2004 No.-

As a part of environmental pollution prevention and resources recycling, the regeneration of waste tire has been largely contributed to national industry. But, the worker has been evaded this regeneration process by reason of the best mischievous process condition among 3D industries.So, the first, the process condition of regeneratingwaste tire was analyzed. The second, the equipment or system was developed for the improvement of working strength and environment. The last, researchers intend to solve these problems

3차원 레이저 진동측정기를 이용한 고속회전 모터의 진동특성 분석

김재열,김창현,송경석,양동조,곽이구,이창선 한국공작기계학회 2003 한국공작기계학회 춘계학술대회논문집 Vol.2003 No.-

Noise cause is dividing to fluid noise by exhaust flow of fan and vibration noise by rotational vibration of motor. Until now, measuring method has been used to measure vibration by the accelerometer, this method has been not measured for the vibration in some parts of brush and commutator because of motor construction. This research was purposed on the accurate analysis, using laser vibration analyzer, of noise cause against the difficult part in old times. By using this measured data, we would like to use for the design of silent motor.

알러지성 비염 환자 107례에 대한 神鼻煎의 임상적 효과

김경렬,장현호,두인선,김남권,이종화,유영수,강형원 한국전통의학연구소 2002 한국전통의학지 Vol.12 No.1

Allergic rhinitis is characterized by rhinorrhea, sneezing and nasal obstruction. Allergic rhinitis increases because of developments of diagnostic techniqhe, environmental change, especially industrialization. Recently people have studied on allergic rhinitis. We studied 107 allergic rhinitis patients with SBJ from June. 2002 to December, 2002. There was a significant effect of SBJ on allergic rhinitis. So, we suggested the clinical effect of SBJ on allergic rhinitis.