Nanogenerators: Fully Rollable Transparent Nanogenerators Based on Graphene Electrodes (Adv. Mater. 19/2010)

Choi, Dukhyun,Choi, Min-Yeol,Choi, Won Mook,Shin, Hyeon-Jin,Park, Hyun-Kyu,Seo, Ju-Seok,Park, Jongbong,Yoon, Seon-Mi,Chae, Seung Jin,Lee, Young Hee,Kim, Sang-Woo,Choi, Jae-Young,Lee, Sang Yoon,Kim, Jo WILEY-VCH Verlag 2010 ADVANCED MATERIALS Vol.22 No.19

<B>Graphic Abstract</B> <P>The cover shows an image of fully rollable transparent nanogenerators synthesized using chemical vapor deposition grown large-scale graphene sheets as transparent electrodes and piezoelectric ZnO nanorod arrays. Sang-Woo Kim, Jae-Young Choi, and co-workers report on p. 2187 the electrical and structural stability of the nanogenerators, with excellent charge scavenging performance under external mechanical loads such as bending and rolling. This study shows that graphene-based nanogenerators are very promising for self-powered rollable transparent device applications. <img src='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content.gif' alt='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content'> </P>

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 Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher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

동적하중을 고려한 주동토압

이만열,정성교 동아대학교 공과대학 부설 한국자원개발연구소 1994 硏究報告 Vol.18 No.1

The equation of dynamic earth pressure have been newly derived using the arching concept under which the Mononobe-Okabe's assumption is valid. The results calculated by the newly derived equation have been compared with those by the existing theories and by the measured data. As a result, the earth pressures derived have resulted in a nonlinear, instead of a linear distribution as shown by Mononobe-okabe's theory. The dynamic overturning moment in increment calculated here showed more or less greater than the measured values.

진해만 해성점토의 토질특성에 관한 연구

이광열,윤성현,홍진원,안용수 東西大學校 2001 동서논문집 Vol.7 No.-

This study presents the physical and mechanical characteristics of dredged clays from Jin-Hae costar area. Dredged clays generally used as a land reclamation materials for land use in the shoreline. Experimental studied were performed on the samples directly obtained from the field. The results of direct shear test, unconfined test and consolidation test were presented for variable water contents. From the study, it is indicated that the strength of soil is decreased as increase of water contents, and the strength is increased as time passing.

Coevaporation에 의한 cd₁-xZn_(x)S 박막 제작 및 특성에 관한 연구

李載亨,李虎烈,朴鏞冠,申成浩,申載爀,朴光子 성균관대학교 1998 학술회의지원논문목록집 Vol.1998 No.-

In this paper, structural optical and electrical properties of Cd_(1-x)Zn_(x)S thin films prepared by coevaporation method were studied. Also, effects of ZnS mole ratio(x) to CdS on properties of thin film Cd_(1-x)Zn_(x)S/CdTe solar cells were investigated. When the ZnS mole ratio was less than 0.85, the crystal structure of Cd_(1-x)Zn_(x)S films was hexagonal with the c axis aligned perpendicular to the substrate. For x>0.85, however, the Cd_(1-x)Zn_(x)S films were grown with cubic zincblende structire. As the ZnS mole ratio increased the lattice constant of Cd_(1-x)Zn_(x)S films rapidly increased with ZnS mole ratio. The open circuit voltage of Cd₁xZnxS/CdTe solar cells increased with x due to reducing of the electron affinity difference between Cd₁xZnxS and CdTe films. However, the increase of series resistance due to the high resistivity of Cd_(1-x)Zn_(x)S films results on reducing conversion efficiency.

재래종 참외 종자 및 생육초기 주요형질의 유전력과 상관관계 분석

이상우,박상현,강호종,안상열,채윤석,김주현 진주산업대학교 농업기술연구소 2000 農業技術硏究所報 Vol.13 No.-

This experiment was conducted to obtain some basic imformation for korean native oriental melon breeding. Genetic variability, heritability, and correlation on 13 characters were analyzed. The results are summarized as follows; 1. Among 13 characters, plant height and length of lateral shoot showed high level of GCV(110-362%) and ECV(89-101%). The rest characters showed low level of GCV(7-21%) and ECV(0.16-9%). 2. Heritabilities of 13 characters investigated were high as over 50%. Especially those of hypocotyl length, 100-seed weigth and seed width were very high (> 95%). 3. High level correlation values were observed among seed characters and seedling characters. 4. Plant characters of early growth stage, except leaf stalk length, were not related with characters of seed or seedling 5. In early plant growth stage, plant height and length of lateral shoot were correlated positively with number of node, number of lateral shoot, leaf length and leaf width.

우울증으로 입원한 전신성홍반성 낭창 1례

이원희,이상렬,박민철 圓光大醫大 1997 圓光醫科學 Vol.13 No.1

신경정신과 입원환자에 적용된 정신치료극의 치유인자

이상열,박민철 圓光大學校 醫科學硏究所 1995 圓光醫科學 Vol.11 No.1

In order to invesgate the curative factors of psychodrama we evaluated the 11 therapeutic factors that had been introduced by Yalom in the protagonists of psyhciatric inpatients. The protagonists were 38 patients who were hospitalized in Wonkwang University Psychiatric Hospital from Sep. 1994 to Aug. 1995. We studied demographic characteristics of the protagonist and the difference of curative factors between realistic group of protagonist and unrealistic protagonist group. The results were as follows : 1) The demographicl characteristics were that mean age of protagonist was 27.9±5.8, sex ratio of male and female was 22(57.9%) : 16(42.1%), marrital status of protagonists were single 12(31.6%), married 12(31.6%) and divorced 4(10.5%), and religious status of protagonist were christian 24(63.2%), irreligion 8(21.1%), catholic 5(13.2%) and others was 1(2.6%). Also, mean educactional year of protagonist was 12.4±3.8 years and mean hospitalization period was 58.8±21.7 months. 2) The psychiatric diagnosis of the protagonist were composed of schizophrenic and schizophreniform disorder 18(47.4%), mood disorder 13(34.2%), schizoaffective disorder 3(7.9%), personality disorder 2(5.3%). alcohol dependence 1(2.6%) and organic mental disorder 1(2.6%). 3)The important curative factors which was evaluated by director and auxillary ego were catharsis, instillation of hope, and group cohesiveness in order. 4)There was no difference in the curative factors between realistic group and unrealistic group except imitative behavior(p(0.05).

원발성 하지정맥류의 압박경화요법

이석열,양성린,이길노 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Background: Varicose veins are a very common condition that presents in a variety of forms. Treatment mordlities are variant and beneficial. The authors report an experience of compression sclerotherapy using Tromboject(Sodium tetradecyl sulfate) in varicose veins of the lower extremities. Methods: Prospective study was performed in 62 varicose vein patients who were treated with compression sclerotherapy from Mar. 1999 to Mar 2001. Sclerosing agent was used by 1%, 3% sodium tetradecyl sulfate and high concentrated agent was injected in proportion to vessel diameter. And then the patients wore compression stocking for 2 months. Results: The prevalent age group consisted of fourth decade and mean age was 39. The female to male ratio was 3.8:1. The site of varicose vein was similar to both side and major involved vein was greater saphenous vein. Duration of the varicose vein was mostly 1-20 years. All patients were complained of cosmetic problem and other symtoms were heaviness, walking discomfort, pain and leg edema. The most etiologic factor was pregnancy. Average frequency of injection was 1.65±0.55 and mean follow-up periods was 11.9 months. There was no recurrence during follow-up periods. The most patients were satisfied with compression sclerotherapy and satisfaction degree was 4.84±0.42. Hyperpigmentation was developed in all case but normalized after 3-6 months. Other complications was leg edema, superficial thrombophlebitis, and hematoma. Contact dermatitis appeared as complication ,especially summer, due to compression stocking. Conclusion: Compression sclerotherapy showed good results and minimal side effects in varicose vein of the lower extremities. Compression sclerotherapy may be primary treatment in selected cases.

연폭로 근로자들에 있어서 신(腎)기능 장해 지표에 관한 연구

이상주,홍영습,김성률,김동일,김준연,정갑열 大韓産業醫學會 1996 대한직업환경의학회지 Vol.8 No.2

A range of indicators is available to assess renal dysfunction in lead exposure. This study was undertaken to find out which indicators were most valuable as markers of renal dysfunction. We selected 75 male workers from the secondary lead smelter, plastic stabilizer and radiator manufacturing industries (the "exposed" group) and 64 male office workers (the "control" group). Blood lead; blood zinc protoporphyrin; urine lead; urine coproporphyrin; δ-aminolevulinic acid dehydratase activity; and urine δ-aminolevulinic acid were chosen as indicators of lead exposure. Blood urea nitrogen; serum creatinine; serum uric acid; N-acetyl-β-D-glucosaminidase; urine albumin; urine α₁-microglobulin; and urine β₂-microglobulin were used as indicators of renal dysfunction. Urine α₁-microglobulin level was significantly associated with the lead exposre level. Blood urea nitrogen, urine N-acetyl-β-D-glucosaminidase and urine α₁-microglobulin levels were highly correlated with indicators of lead exposure. Urine α₁-microglobulin had the highest correlation with other indicators of renal function. In addition, the proportion of subjects with high urine α₁-microglobulin levels showed a gradient with lead exposure. Conclusively, blood urea nitrogen, urine N-acetyl-β-D-glucosaminidase and urine α₁-microglobulin are useful indicators, but urine α₁-microglobulin is the early and the most valuable indicator of renal dysfunction related to lead exposure.