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전기선폭발법으로 제조한 나노 W(텅스텐) 분말의 환원처리 및 방전플라즈마소결에 의한 조밀화
김지순,김철희,박은주,권영순,김진천,이성호,정동익,Kim Ji-Soon,Kim Cheol-Hee,Park Eun-Ju,Kwon Young-Soon,Kim Jin-Chun,Lee Sung-Ho,Jung Dong-Ik 한국분말야금학회 2006 한국분말재료학회지 (KPMI) Vol.13 No.4
[ ${\beta}-W(W_3O)$ ] oxide layer on the surface of each W(tungsten) nanopowder produced by the electric explosion of wire(EEW) process were formed during the 1vol.% air passivation process. The oxide layer hindered sintering densification of compacts during SPS process. The oxide phase was reduced to the pure W phase during SPS. The W nanopowder's compacts treated by the hydrogen reduction showed high sintered density of 94.5%. after SPS process at $1900^{\circ}C$.
$Cu-TiB_2$ 나노 금속복합재의 물성치에 대한 연구
김지순,장명규,염영진,Kim Ji-Soon,Chang Myung-Gyu,Yum Young-Jin 한국복합재료학회 2006 Composites research Vol.19 No.2
[ $Cu-TiB_2$ ] metal matrix composites with various weight fractions of $TiB_2$ were fabricated by combination of manufacturing process, SPS (self-propagating high-temperature synthesis) and SPS (spark plasma sintering). The feasibility of $Cu-TiB_2$ composites for welding electrodes and sliding contact material was investigated through experiments on the tensile properties, hardness and wear resistance. To obtain desired properties of composites, composites are designed according to reinforcement's shape, size and volume fraction. Thus proper modeling is essential to predict the effective material properties. The elastic moduli of composites obtained by FEM and tensile test were compared with effective properties from the original Eshelby model, Eshelby model with Mori-Tanaka theory and rule-of-mixture. FEM result showed almost the same value as the experimental modulus and it was found that Eshelby model with Mori-Tanaka theory predicted effective modulus the best among the models.
김지순(Ji-Soon Kim),유희정(Hee-Jeong Yoo),조인희(In-Hee Cho),박태원(Tae-Won Park),손정우(Jung-Woo Son),정운선(Un-Sun Chung),신민섭(Min-Sup Shin),김붕년(Bung-Nyun Kim),김재원(Jae-Won Kim),양영희(Young-Hui Yang),강제욱(Je-Wook Kang),송숙 대한소아청소년정신의학회 2011 소아청소년정신의학 Vol.22 No.3
Objective:A significant proportion of children with autism spectrum disorders (ASD) have regression characterized by loss of previously acquired skills. The purpose of this study was to compare demographic, clinical characteristics and autism-related symptomatology of the children who have regression with children who don’t have regression. Methods:The subjects with ASD and their unaffected siblings (SIB) were recruited from the Korean Autism Genetic Study Consortium. Typically developing children (TC) were volunteered from community. The subjects were administered the Korean version of Autism Diagnostic Interview-Revised (K-ADI-R) and the Korean version of Autism Diagnostic Observation Schedule (K-ADOS) to diagnose or exclude ASD. Regression was defined on the basis of K-ADI-R data. The Korean version of Vineland Adaptive Behavior Scale (K-VABS), Aberrant Behavior Checklist (K-ABC) and Social Responsiveness Scale (K-SRS) were obtained from their parents. Results:Regression occurred in 8.33% (n=14) of children with ASD (n=168). Any SIB (n=166) and TC (n=53) did not experience regression. Regression was associated with lower IQ and lower score of K-VABS. There was no difference in autism symptom severity and K-ABC, K-SRS scores, between children with ASD who experienced regression and who did not. Conclusion:Regression seems to be a distinctive feature of ASD. Regression is associated with cognitive and more general functions, rather than symptoms specific to autism.
자폐스펙트럼장애 환자에서 나타나는 운동 상동증 유무에 따른 임상 특성의 차이
김지순(Ji-Soon Kim),유희정(Hee-Jeong Yoo),배정훈(Jeong-Hoon Bae),조인희(In-Hee Cho),박태원(Tae-Won Park),손정우(Jung-Woo Son),정운선(Un-Sun Chung),신민섭(Min-Sup Shin),김붕년(Bung-Nyun Kim),김재원(Jae-Won Kim),양영희(Young-Hui Yang) 대한소아청소년정신의학회 2015 소아청소년정신의학 Vol.26 No.1
Objectives:Repetitive and stereotyped behaviors are core symptoms in children with autism spectrum disorders (ASD). The purpose of our study was to investigate the frequency of motor stereotypes in ASD children and their clinical features. Methods:Among 171 ASD children (age range, 3?15), the ASD group with motor stereotypes was defined according to two items in the Korean version of Autism Diagnostic Interview-Revised (K-ADI-R). We compared the clinical features, behavior problems and severity of other domains in the K-ADI-R and executive functions between the ASD group with motor stereotypes and the ASD group without motor stereotypes. Results:Ninety (52.6%) of 171 ASD children had motor stereotypes. The ASD group with motor stereotypes had a lower intelligence quotient score (62.23 vs. 84.94, p<.001) compared to the ASD group without motor stereotypes. The ASD group with motor stereotypes had more impairments in the social interaction domain [adjusted odds ratio (AOR) 1.11, p=.001] and communication domain (AOR 1.15, p=.008). Thought problems and lethargy were more frequent in the ASD group with motor stereotypes than the ASD group without motor stereotypes (AOR 2.059, p=.034 ; adjusted OR 1.045, p=.046). However, no significant differences in executive function were observed between the ASD group with motor stereotypes and the ASD group without motor stereotypes. Conclusion:The ASD group with motor stereotypes showed more impairment in social interaction and communication domains, which are core symptoms of autism. Motor stereotypes may indicate greater severity of ASD.
대구시립교향악단의 정기연주회 목록을 통한 작곡가와 장르별 작품 연주상황에 대한 분석
김지순(Ji Sun Kim) 민족음악학회 2001 음악과 민족 Vol.22 No.-
Daegu City Symphonic Orchestra(from now on DCSO) was founded in Nov. 1964 and had the first periodical concert on Dec. 17th, 1964. Most recently Daegu City Symphonic Orchestra had the 283th periodical concert on June 28th, 2001. The paper focuses on the analysis of the program of the periodical concerts of DCSO. The program of each periodical concert usually consists of three substantial musical genre, i.e. one orchestral piece such as opera overture, suite, symphonic poem etc., one solo concerto and one symphony. During the periodical concerts of DCSO, altogether 58 symphonies have been performed and among them only 13 pieces have been played over and over again appearing more than 100 concerts. The similar condition has been observed in the performance of the solo concertos and orchestral pieces other than the symphony. The attachment to the small number of certain solo concertos or orchestral pieces still has been dominant. Most popular composers of all time according to the number of performance played by DCSO are Beethoven, Mozart, Schubert, Brahms, Mendelssohn, Tchaikovsky, Dvorak, Rossini, Weber etc. Only 29 pieces of the 20th-century composition has been performed through the periodical concerts of DCSO(only the names of twenty-six 20th-century composers appear in the program). Most of the 20th-century compositions have played only once and the repetition of certain composition is rare. Thirty-one names of Korean composers altogether appear at the program of the periodical concerts of DCSO. Only one or two pieces of each Korean composer has been introduced and most pieces of Korean composers have been performed through the periodical concerts featuring special event such as Pacific Contemporary Music Festival, Concert for Korean-Japanese Contemporary Orchestral Compositions, Concert for the New Composition, or Concert for the Korean Contemporary Music etc. The preponderance of DCSO over small number of Western European musical compositions of the late 18th and 19th century naturally leads into the destitution of the performance of the contemporary pieces as well as Korean contemporary music. As the symphonic orchestra of local city, DCSO should make effort to broaden the repertoire and have open mind willing to perform Korean contemporary music as well as other new compositions in the future.
간호대학생 대상 한국판 의료계열 학생용 제퍼슨 공감 척도의 신뢰도 및 타당도 검증
김지순(Kim, Jisoon),안숙희(Ahn, Sukhee) 한국간호교육학회 2018 한국간호교육학회지 Vol.24 No.3
Purpose: This study was to validate the Korean version of the Jefferson Scale of Empathy-Health Professions Students (K-JSE-HPS) in undergraduate nursing students. Methods: With a survey design, a total of 293 junior and senior nursing students were recruited and data were collected using a self-administered study questionnaire to measure their levels of empathy use the K-JSE-HPS. Using SPSS/WIN 22.0 and AMOS 22.0, data analysis was conducted with confirmatory factor analysis, criterion validity, and reliability. Results: For construct validity, confirmatory factor analysis showed an acceptable model fit (Goodness of Fit Index was 0.88) along with confirming convergent and discriminant validity (construct reliability was 0.70). For criterion validity, the scale was significantly related with the Interpersonal Reaction Index. For reliability, Cronbach’s α coefficient for the scale was 0.87 and for the subscales were 0.84, 0.78, and 0.69, respectively. Conclusion: The findings show satisfactory construct and criterion validity and reliability of the Korean version of the JSE-HPS for measuring empathy in undergraduate nursing students.