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>

열공형과 비열공형 피질하 혈관성 치매에서 위험인자의 차이에 관한 비교 연구

배희준,정지향,유경호,나덕렬,김상윤,최경규,양동원,손의주,이상도,김재우,박경원,김응규,이재홍,박미영,한일우,함동석,최문성,하충건,최성혜,이애영,이병철,한설희 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2

Backgrounds and Objectives: Vascular dementia is a group of dementing disoders arising from various stroke syndrome. Among these. subcortical ischemic vascular dementia (SIVD) is regarded as a relatively distinct clinical entity. However, MRI patterns of SIVD are not homogenous. In some patients, lacunes are dominant, and in others, subcortical white matter changes are. This study was designed to compare risk factor profiles between SIVD with and without multiple lacunes. Methods: We divided 47 subjects (22 males, mean age. 68 years) recruited from VADAPET (Multicenter Trial For Evaluation Of The Changes In the PET Images Of Subcortical Vascular Dementia Patient) study into two groups one with more than 5 lacunes in deep gray matter (lacune group) and the other with 5 or less(non-lacune group) Clinical characteristics and laboratory findings of two groups were compared. Results: Nineteen of 47 patients (40%) belonged to the lacune group. The lacune and non-lacune groups d d not differ in the following variables: age, hypertension, diabetes mellitus, hyperlipidemia heart disease, history of stroke or TIA, history of trauma or major surgery, family history of hypertension stroke, or dementia, age at diagnosis of dementia, body mass index, white blood cell count, ESR, CRP, fibrinogen, hemoglobin A1C, total cholesterol. LDL cholesterol creatinine, proteinuria, glucosuria, and microhematuria. However, male sex, smoking alcohol. hemoglobin, and HDL cholesterol were possibly associated more with lacune group SIVD than with non-lacune group (p<0 1) Multivariate analyses revealed that smoking, hemoglobin, and HDL cholesterol were independent predictors of SIVD with multiple lacunes Conclusion: Our study suggests that SIVD with multiple lacunes may be significantly different in smoking habits hemoglobin, and HDL cholesterol from SIVD without multiple lacunes.

2003년 국내 중증급성호흡기증후군 진료 현황 및 문제점 분석

이진수,김은실,정문현,백제중,정선화,안주희,최영화,이선희,고철우,김성범,김민자,박승철,기현균,송재훈,최상호,김양수,이상오,조용균,박영훈,정숙인,김연숙,이흥범,손창희,장성희,정희진,김우주 대한감염학회 2004 감염과 화학요법 Vol.36 No.3

목적 : 2002년 말 중국에서 SARS가 발생한 이후 국내에서도 2003년 10월까지 총 3명의 추정환자, 17명의 의심환자가 보고되었다. 향후 추가적인 SARS의 유행이 우려되는 상황에서, 그간의 SARS 환자 진료에 있어서의 실질적인 준비사항, 진료 현황 등에 대한 조사를 통해 문제점을 파악하여, 향후 더 나은 대비가 될 수 있도록 개선점을 제시하고자 하였다. 재료 및 방법 : SARS로 의심되는 환자를 진료 경험이 있는 병원의료진을 대상으로 2003년 10월에 설문조사를 실시하였다. 설문에는 SARS 환자 진료 시의 실질적인 조치, 진료 현황, 병실, 응급실 및 외래에서의 격리 시설과 준비사항, 보건당국의 관리와 지원에 관한 사항을 포함하였다. 결과 : 대상이 되는 22개 병원 중 17개(17/22, 77.2%) 병원이 설문에 응하였다. SARS 환자를 위한 격리실은 응급실, 외래, 일반병실 및 중환자실에서 각각 9개(9/17, 52.9%), 5개(5/17, 29.4%), 15개(15/16, 93.7%), 4개(4/16, 25%) 병원에서 음압처리가 되어있지 않은 일인실 혹은 다인실이 사용되었고, 1개(1/16, 6.3%) 병원에서만 일반병실에서 음압격리실이 운영되었다. 입원환자의 진찰 시 개인보호구의 착용은 거의 모든 의료기관에서 이루어졌다. 보건당국에서 SARS지정병원의 시설 등을 사전에 확인한 곳은 1곳(1/12, 8.3%)이였고, 14개 병원(14/15, 93.3%)에서는 보건당국에 의뢰한 검사결과를 통하 받지 못하였다. 결론 : 의료기관에서 SARS 환자용 격리실뿐만 아니라 기존의 격리실 설비 등이 미흡하였으며, 특히 중환자실 및 외래의 준비가 더욱 부족하였다. 보건당국의 의료기관에 대한 종합적인 지원이 부족하였고, 병원과의 원활한 연계가 잘 이루어지지 않았다. SARS 만이 아닌 격리를 필요로 하는 질환의 적절한 진료를 위해 향후 병원 시설의 정비와 정부차원에서의 보다 구체적이고 실질적인 대책마련이 필요하다. Background : There was an worldwide outbreak of the Severe Acute Respiratory Syndrome (SARS) originated from China in late 2002. During that period three cases of suspected SARS and 17 cases of probable SARS were reported in Korea. With the concerns about the reemergence of SARS-coV transmission, it is important to be prepared for any possibility. So, this study is aimed to analysis the past measures in managing SARS and propose the amendatory plans to improve the preparedness. Materials & Methods : Questionnaires were collected among clinicians with any experience in managing the probable or suspected SARS cases in Oct. 2003. 17 out of 22 hospitals responded to the questionnaire. The contents in the questionnaire were practical activities, personal equipments, response plans, isolation facilities in emergency centers, outpatient clinics, general wards and intensive care units, and relationship with the public health department. Results : The dedicated isolation rooms in emergency centers, outpatient clinics, general wards, and intensive care units were prepared in 9 (9/17, 52.9%), 5 (5/17, 29.4%), 15 (15/16, 93.7%), and 4 (4/16, 25.0%) hospitals, respectively. Except for one hospital that newly made negative pressure room for SARS, single or multi-bed rooms without airborne infection control were used in all the other hospitals. The personal precaution principles were kept quite well in general wards. Before the designation of SARS hospital by the public health department prior evalution to see if the hospital was suitable for managing SARS was conducted in only 1 (1/12, 8.3%) hospital. The results of laboratory diagnosis were reported back in 1 (1/15, 6.6%) hospital. Conclusions : The isolation facilities which can control airborne infection were almost deficient not only for SARS but also for other respiratory transmissible diseases. For the infection control of transmissible diseases including SARS, more investment is needed on medical facilities and comprehensive support from the public health department required.

측면 충돌용 에어백의 설계를 위한 해석 모델 개발

崔亨然,柳載雨 弘益大學校 科學技術硏究所 1997 科學技術硏究論文集 Vol.8 No.-

In this study, finite element method analysis has been carried out about side airbag which has dual-chamber. Seat-mounted side airbag has to be designed considering breakage of the foam and fabrics. the direction and the timing of its deployment are so important to protecting occupants so that in this study pressure of the airbag, stiffness of airbag fabrics, strength of seat trim line were chosen to be analyzed, and the deployment of rolling-pattern airbag was simulated. Also simple model including foam, fabrics and airbags is made for investigating strength of the foam and the fabrics, the direction of deployment.

유방암의 뇌하수체 전이에 의한 양안 시력소실 1 예

최낙원,안명주,김재민,박동우,박용욱 한양대학교 의과대학 2000 한양의대 학술지 Vol.20 No.1

Pituitary gland metastasis is a rare clinical diagnosis, usually made in the setting of known primary systemic cancer with widespread metastasis to other organs. But visual loss as a presenting symptom of metastasis to the pituitary gland is unusal. We report here a case of 45-year-old woman who had been diagnosed as having metastatic breast cancer involving bone and liver 2 years ago, and received high dose chemotherapy with peripheral blood stem cell transplantation, developed sudden bilateral complete visual loss. At initial presentation, the patient had no light perception and no pupillary response to light in both eyes, but without evidence of panhypopituitarism, or diabetes insipidus. Brain MRI showed a large enhanced mass invasion to the cavernous sinus and extension to the suprasella portion without dura or base-of-skull metastasis. Pathologic examination showed metastatic breast cancer. Despite the transsphenoidal decompression surgery of metastatic tumor, the visual loss was not improved.

엔터테인먼트 로봇의 감성 알고리즘 연구

최재일,김승우 순천향대학교 부설 산업기술연구소 2003 순천향 산업기술연구소논문집 Vol.9 No.1

An emotionally modeled robot is dealt in this paper. The emotional model is required especially in the entertainment robot. Recently, the entertainment robots have been developed as the next generation of electronic toys. They require several capabilities such as perceiving, acting, communication, and surviving. The owner recognizes the communication with a entertainment robot by observing its expression and reaction. The expression is realized by emotion-based actions based on moving, dancing, sounding, speaking, and lighting. Therefore, we propose an emotional modeling algorithm, using the fuzzy logic system, in this paper. Good performance of the algorithm is confirmed by the result of a simulation.

리사이클을 위한 평판 유리 파쇄 장치 개발

최성대,정선환,김잠규,김우재,김용선 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-

At a point time, when demand is gradually increasing on LCD and PDP market all over the world, demand on glass which is key part of LCD and PDP is increasing, too. Hence, glasses are being cut by requested size for satisfaction on demands, the remain glass is making problems. This study is for designing installation of handling these remained glasses effectively and easily.

魚油함유 飼料에 첨가한 α-토코페롤의 含量이 흰쥐 血液의 溶血作用과 脂質過酸化反應에 미치는 影響

崔鎭浩,金一星,金在一,金東右,朴泉洙,尹泰憲 한국노화학회 1993 한국노화학회지 Vol.3 No.1

동양 전통과학의 탐구방법론 연구 : 朱子의 格物致知論을 중심으로

최영제,이우붕,정원우,김용수,문장수,방경곤,김기정 경북대학교사범대학과학교육연구소 2005 科學敎育硏究誌 Vol.29 No.-

재조합 균주 Bacillus subtilis LKS88에 의한 Streptomyces albus KSM-35 Amylase의 생산조건

최원진,유도진,이재우,소명환,김영배 한국식품영양학회 1998 韓國食品營養學會誌 Vol.11 No.4

Streptomyces albus KSM-35의 amylase의 유전자를 Bacillus subtilis LKS88에서 발현시킨 균주를 사용하여 amylase의 생산에 미치는 몇가지 요인들을 조사하였다. 본 실험에 사용한 탄소원들중에서 sodium citrate와 왕겨의 효소 생산량이 가장 높았고, 이들을 1:1의 비율로 혼합하여 첨가하였을 때 효소의 생산량은 대조군으로 사용한 가용성 전분에 비하여 20배 이상 증가하였다. 질소원으로 대두박을 사용하였을 경우 yeast extract의 첨가량을 줄이면서 효소의 생산량을 증가시켰다. 배양을 위한 초기 pH를 60으로 조절하고 SDS를 0.01%첨가하였을 때 대조구조보다 높은 효소 생산량을 나타내었다. Bacillus subtilis LKS88 (pASA240)을 sodium citrate와 왕겨 각각 1.5%, K_2HPO_4 0.66%, yeast extract 0.3%, 대두박 0.7%, SDS 0.01% 및 초기 pH를 6.0으로 조절한 배지에서 37℃에서 배양시 최대 효소 활성은 배양 후 36시간에서 나타났으며 이때 효소 활성은 56.6 U/ml이었다. The effects of culture conditions on the production of amylase expressed by Bacillus subtilis LKS88 with a cloned gene from Streptomyces albus KSM-35 were investigated The production of amylase was increased significantly by using sodium citrate and rice hull as a carbon source. In addition, the use of a mixture of sodium citrate and rice hull(1:1) resulted in increase of enzyme production by 20-fold when compared to that of soluble starch. The soybean meal as the nitrogen source could be partially replaced with yeast extract without changing the enzyme production yield. The amylase production was also increased by adjusting initial pH to 6.0 or by adding 0.01% SDS. Maximum amylase production was observed in the medium containing 1.5% sodium citrate, 1.5% rice hull, 0.7% soybean meal, 0.3% yeast extract, 0.66% K_2HPO_4, 0.05% MgSO_4·7H_2O, 0.08% CaCl_2·2H_2O, 0.01% SDS with initial pH of 6.0. The maximum yield of amylase reached 56.6 U/ml when B. subtilis LKS88(pASA 240) was cultured at 37℃ for 36 hr.