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차지훈,이동복 成均館大學校 科學技術硏究所 1997 論文集 Vol.48 No.1
Alloys of β-Ti having a chemical composition of Ti - 15.22wt.%Mo - 5.06wt.%Zr - 3.11wt.%Al were oxidized isothermally and cyclically in air between 650 and 900℃. In isothermal tests, the alloys were oxidized parabolically displaying superior oxidation resistances without any recognizable oxide failure below 800℃. But, at 900℃ serious failures accompanying cracks and pores inside oxides formed were noticed. In cyclic tests, only at 700℃ the oxidation resistance of the alloys was fair, while above 800℃ big weight changes accompanying scale spallations and failure were observed.
동계 난방시 구조체 축열 공조시스템의 축·방열 특성에 관한 연구
임지훈,이시환,차영호,정광섭,이정재 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1
It is the plan that storage gets energy done by in structure with what thermal storage of structure changes only supply air duct among the existing HVAC system, and a basic principle coordinates the damper that it was installed makeup air in supply air duct like former HVAC system to an inside at supply and a night by day, and do makeup air supply with in ceiling space of thermal storage of structure HVAC system. This thermal storage of structure HVAC system uses the existing utility system, and energy saving can get structure of building done with energy storage, before air conditioning and peak load cut getting day heat load done.
방과 후 감각통합프로그램(감각통합치료)이 학교에서의 기능적 과제 수행에 미치는 효과
박지훈,이은정,노종수,이향숙,차정진 대한감각통합치료학회 2010 대한감각통합치료학회지 Vol.8 No.1
Objective : This study is designed to identify effect of a sensory integration(SI) program provided to elementary school students as an after-school activity. The study is looking at both occupational performance components and school-task performance which is an area of occupational performance. Methods : SI program specially designed as an after-school activity was provided to three boys who are first- or second grade students of Y elementary school in Dae-Jeon city. The SI intervention was organized with 25 sessions and carried out for two months. One group pretest-posttest design was used to evaluate the effectiveness of the SI program. Measurements used are Short Sensory Profile(SSP), K-DTVP-2, and BOTMP for occupational performance components, and School Function Assessment for functional schooltask performance. Results : It is found that posttest scores were enhanced in all assessments SSP; BOTMP; K-DTVP-2; and SFA. Conclusion : Results of this study simply propose that sensory integration program designed as after-school activity may have positive effects on not only occupational performance components but also on school-task performance of elementary school student. Since sample size is too small, however, there is limitation to find statistical significance. Further researches testing large number of subjects are required to boost the finding of this study. 목적 : 본 연구는 학교 방과 후 활동으로 감각통합치료를 제공하였을 때 작업수행요소와 더불어 작업수행영역인 학교에서의 기능적 과제수행에 미치는 영향을 알아보기 위하여 실시하였다. 연구 방법 : 실험은 대전 Y초등학교에 재학 중인 1-2학년 아동 3명을 대상으로 방과 후 활동 시간에 감각통합치료를 제공하였으며, 중재는 2010년 5월과 6월에 걸쳐 총 25회를 제공하였다. 감각통합치료효과를 알아보기 위해 단일집단 사전-사후 설계(one group pretest-posttest design)를 사용하였고, 작업수행요소에서의 변화를 알아보기 위하여 단축감각프로파일(SSP), 한국판 시지각 발달검사(K-DTVP-2), Bruininks-Oseretsky Test of Motor Proficiency 1(BOTMP)를 사용하였으며, 작업수행영역에서의 변화를 알아보기 위하여 학교에서의 기능적과제 수행능력에 대한 평가(School Function Assessment)를 사용하였다. 결과 : 방과 후 감각통합프로그램(감각통합치료)을 적용한 결과 대상아동들은 작업수행요소인 단축감각력(SSP), BOTMP, 한국판 시지각 발달검사(K-DTVP-2)의 수치상 향상을 보였으며, 작업수행영역인 학교에서의 기능적 과제 수행(SFA)의 점수에서도 향상을 보였다. 결론 : 본 연구를 통해 방과 후 감각통합프로그램(감각통합치료)이 작업수행요소와 학교에서의 기능적 과제수행에 긍정적인 영향을 미친다는 것을 보여주었지만, 대상의 수가 적어 통계적 유의성을 찾는 데는 한계가 있었다. 따라서 향후 연구에서는 대상자의 수를 고려한 연구들이 필요할 것으로 사료된다.
최영민,차천석,김지훈,서현경,양인영 한국공작기계학회 2006 한국공작기계학회 추계학술대회논문집 Vol.2006 No.-
The front-end side members of vehicles absorb the most of the energy during the front-end collision. These side members are mostly consist of single hat shape. The side members absorb more energy under axial load if they have higher strength, and stable folding capacity (local buckling). When structural members are subjected to axial loadings, stress is concentrated on their edges. Thus, in this study, the energy absorption characteristics of the member were analyzed according to change of sectional shape for increase of strength. The side members consist of single hat, double hat, single cap and double cap section member. Based on the static test result of these side member, the impact simulation were carried out and compared with test result.
한국판 Neuropsychiatric Inventory로 본 치매 단계에 따른 행동ㆍ정신증상 특징
오병훈,차경렬,홍창형,김지혜 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.5
Objectives : This study aimed to compare the behavioral psychological symptoms of dementia by stages and to suggest the proper management treatment plan. Methods : We examined behaviral psychological symptoms in 17 dementia patients with mild stage (CDR=0.5, 1), 18 de-mentia patients with moderate stage (CDR=2) and 24 dementia patients with severe stage (CDR=3, 4). We compared the prevalence and the composite scores (frequency x seventy) of each behavioral domain in K-NPI among three groups. The MMSE-K, GDS, Barthel ADL were also administrated to evaluate the general cognitive function, seventy of the patients and activity of daily living. Results : The most common behavioral disturbances were apathy/indifference, depression/dysphoria, and aberrant motor behavior. The mean composite score of aberrant motor behavior increased by stages of dementia severity with statistical significance. The total score of the K-NPI increased with severer stages of dementia the result didn't show statistical significance. The K-NPI score showed the positive correlation with CDR, GDS and the negative correlation with MMSE-K, B-ADL. But, there was no statistically significant correlation. Conclusion : Behavioral and Psychological Symptoms of Dementia (BPSD) change by the stages of dementia. The practical guideline for BPSD management according to dementia stage is needed. Re-evaluation and new therapeutic inter-vention must be considered by the stages of dementia.
서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)
김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2
Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.