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 Results : Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher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

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.

광주전남지역 정상 신생아의 코의 형태와 계측치에 대한 연구

이유진,양정열,이승찬,천지선,박상기 朝鮮大學校 附設 醫學硏究所 2003 The Medical Journal of Chosun University Vol.28 No.2

Background and Objectives: Cleft lip and palate are common defects in congenital deformity. They are the most frequent deformity in the face. Nose deformity is most common among various facial deformity at the center of face. So we must operate to correct the deformity at the earliest stage to give a patient and parent spiritual relief from anxiety, and it is the trend of the treatment recently. We must know the facial anthropometry in newborn to try at the early stage, but there is a lack of literature and research on newborns. So we carried out this research to form base data for operations. Materials and Methods : The noses of 90 newborns in Gwangju-Cheonnam area were analyzed quantitatively, based on 10 nasal measuring points and 13 anthropometric values taken directly from the face of newborns. The relationship between the nasal measurements were studied in 11 proportion indices. Results : Following are our mean values in newborn. Width of the nasal root was 13. 9mm. Width of the nose was 22. lrnm, Width of the columella was 4. 5mm. Height of the nose was 22.6mm. Length of the nasal bridge was 20.1mm. Nasal tip protrusion was 8.9mm. Width of the nostril floor was 6.4mm. Thickness of the nasal ala and length of the nasal ala were 4.0mm, 15.4mm. Length of the columella was 3.9mm. The most common nostril shape was Type II (0-45 degrees in inclination of the nostril axis from the horizontal). Nasal index was 97.8. Columella-nasal tip protrusion length index was 43.9. Conclusion : The development of the columella was relatively incomplete in the case of newborn and was the result to appear. The normal indicies could be used clinically in identifying the it's normality as well as morphologic characteristics of the craniofacial structures. They also could be used in differential diagnosis between the morphologically similar congenital craniofacial anomalies. In preoperative design, in setting the criteria of the postoperative results, and assessing the effect of the operation, Finally, they supply the plastic surgeon and the other specialists in the craniofacial surgery with basic normal population data.

기능성 소화불량증 환자의 질병특이적 삶의 질과 질병 의거

이상열,박민철,최석채,설지환,서현우,류미경,최명규 圓光大學校 醫科學硏究所 2004 圓光醫科學 Vol.19 No.1

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.

韓國産 자작나무科의 花粉分類學的 硏究

李相泰,金茂烈 全北大學校 生物學硏究所 1981 生物學硏究年報 Vol.2 No.-

The pollen grains of the Korean Betulaceae including 15 species and 4 varieties of 5 genera, were examined to describe the taxonomic characters and to find the phylogenetic position of the family and the inter- and intrageneric as well as the inter- and intraspecific relationships. The possession of 3-6-pororate apertures suggested that the Betulaceae is advanced and has been derived rather from the ancestor of the tricolporate Fagaceae than from the ancestor of the tricolpate Hammamelidaceae. Pollen morphology supported the familial division into Section Betuleae and Coryleae, i. e. vestibula are prominently developed in the former while not in the latter In Section Betuleae, because of the characteristic arcus as well as the high number of pores. Alnus was regarded to be more advanced than Betula. In Section Coryleae, Corylus with inconspicuously developed vestibulum was thought to be the most primative in the family as well. The Carpinus pollen with a higher pore number and larger pollen size suggested to be more advanced than the Ostrya pollen. In Alnus, the mean pore number of the hirsuta group (4.28) was significantly higher than that of the japonica group (4.80). In betula, Series Albae had smaller pollen grains (26.03×20.68㎛) than the Costatae (34.60×28.67㎛). In Corylus, the heterophylla group and the sieboldiana group showed the almost identical pollen morphology. In Carpinus, the tschonoskii group possessed 4 of 5 pores, whereas the cordata 3 pores. The Ostrya pollen exhibited a good similarity with that of C. cordata.

알쯔하이머형 치매 환자에 대한 염산 도네폐질(아리셉트정®)의 인지기능 개선이 건강과 관련된 삶의 질 및 일상 생활 활동에 주는 영향

이상열,신용일,장혁 圓光大學校 醫科學硏究所 2005 圓光醫科學 Vol.20 No.1

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.

SEM용 전자 검출기의 설계 및 제작

이상욱,전종업,박기태,박규열 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-

The nature of the signals collected by an SEM(Scanning Electron Microscope) in order to form images are all dependent on the detector used to collect them, and the quality of an acquired image is strongly influenced by detector performance. Therefore, the development of detector with high performance is very important in pulling up the resolution of SEM This study presents the secondary electron detector for use in scanning electron microscope, electric circuit and I/V conversion circuit for driving that detector.