花柳病の知識

田島淸 朝鮮及滿洲社 1939 朝鮮及滿洲 Vol.- No.380

조직의 공정성이 조직효과성에 미치는 영향에 관한 연구

전도성 서울행정학회 2014 서울행정학회 학술대회 발표논문집 Vol.2014 No.10

스크리닝기술에 의한 플렉소 제판의 품질 향상

전도신개 (사)한국포장협회 2017 包裝界 Vol.293 No.-

이차전지 음극활물질 Si/PC/CNF/PC 복합 소재의 전기화학적 특성

전도만,나병기,이영우 한국화학공학회 2018 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.56 No.6

Si을 리튬이온전지 음극활물질로 사용하기 위해 입도를 0.5 μm 보다 작은 크기로 제어하였고 표면에 탄소를 약 10 nm 두께로 코팅하였다. 그 위에 탄소섬유를 50~150 wt% 양으로 성장시키고 다시 한 번 탄소코팅을 진행하였다. 이렇게만들어진 Si 합성물질은 전기전도성을 높이기 위한 공정으로 이종 금속을 혼합하였으며 수명 특성을 개선하기 위해 흑연과 복합화하였다. 실험 변수에 따른 재료들의 물리화학적 특성을 XRD, SEM 및 TEM을 사용하여 측정하였고 코인셀을 제조하여 전기화학적 특성을 평가하였다. Si/PC (Pyrolytic Carbon)/CNF (Carbon Nano Fiber)보다 Si/PC/CNF/PC 가 전체적으로 Si 함량이 줄어 방전용량은 상대적으로 낮게 나타났지만 전지평가에서 중요한 수명특성에서는 좋은 결과를 보여주었다. 0.2 C rate에서 1512 mA h g-1의 초기 방전 용량과 78%의 초기 효율을 나타내었고 10 싸이클 에서94%의 용량 보존율을 보여주었다. In order to use Si as an anode material for lithium-ion battery, the particle size was controlled to less than 0.5 μm and carbon was coated on the surface with the thickness less than 10 nm. The carbon fiber was grown on the Si surface with 50~150 wt%, and the carbon coating was carried out once again. The Si composite material was mixed with dissimilar metals to increase the conductivity, and graphite was mixed to improve cyclic life characteristics. The physical and electrochemical characteristics of composite materials were measured with XRD, SEM, TEM and coin cell. The discharge capacity of Si/PC/CNF/PC was lower than that of Si/PC (Pyrolytic Carbon)/CNF (Carbon Nano Fiber). However, the cyclic life of Si/PC/CNF/PC was higher. Initial discharge capacity of 1512 mA h g-1 at 0.2 C rate and initial efficiency of 78% were shown. It also showed a capacity retention of 94% in 10 cycles.

회전킬른반응기를 이용한 리튬이온전지용 Si/C/CNF 음극활물질의 제조 및 전기화학적 특성 조사

전도만,나병기,이영우 한국화학공학회 2018 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.56 No.6

Graphite is used as a sample anode active material. However, since the maximum theoretical capacity is limited to 372 mA h g-1, a new anode active material is required for the development of a high capacity lithium ion battery. The maximum theoretical capacity of Si is 4200 mA h g-1, which is higher than that of graphite. However, it is not suitable for direct application to the anode active material because it has a volume expansion of 400%. In order to minimize the decrease of the discharge capacity due to the volume expansion, the Si was pulverized by the dry method to reduce the mechanical stress and the volume change of the reaction phase, and the change of the volume was suppressed by coating the carbon layers to the particle size controlled Si particles. And carbon fiber is grown like a thread on the particle surface to control secondary volume expansion and improve electrical conductivity. The physical and chemical properties of the materials were measured by XRD, SEM and TEM, and their electrochemical properties were evaluated. In this study, we have investigated the synthesis method that can be used as anode active material by improving cycle characteristics of Si. 흑연은 리튬이온전지에 사용 되는 대표적인 음극활물질이다. 그러나 최대 이론 용량이 372 mA h g-1으로 제한되기 때문에 고용량의 리튬이온전지 개발을 위해서는 새로운 음극 소재 활물질이 필요하다. 실리콘의 최대 이론 용량은 4200 mA h g-1으로 흑연보다 높은 값을 나타내지만 부피 팽창이 400%로 크기 때문에 음극 소재 활물질로 바로 적용하기에는 적합하지 않다. 따라서 부피 팽창으로 인한 방전 용량의 감소를 최소화하기 위해 건식 방법으로 실리콘을 분쇄 하여 기계적 응력 및 반응상의 체적 변화를 감소시키고 입도 제어 된 실리콘 입자에 탄소를 코팅하여 체적의 변화를 억제하였다. 그리고탄소 섬유를 입자 표면에 실타래처럼 성장시켜 2차적으로 부피 팽창을 제어하고 전기전도성을 개선하였다. 실험 변수에따른 재료들의 물리화학적 특성을 XRD, SEM 및 TEM을 사용하여 측정하였고 전기화학적 특성을 평가 하였다. 본 연구에서는 실리콘의 수명 특성을 향상시켜 음극 소재 활물질로 사용 할 수 있는 합성 방법에 대하여 알아보았다.

Prevalence and Drug Resistance of Shigella in Taegu Area of Korea

전도기,박종욱,서성일,조동택,설성용,이유철,Chun, Do-Ki,Park, Jong-Wook,Suh, Seong-Il,Cho, Dong-Taek,Seol, Sung-Yong,Lee, Yoo-Chul The Korea Society for Microbiology 1986 大韓微生物學會誌 Vol.21 No.4

1973년부터 1985년 사이에 대구지방에서 분리된 Shigella는 약 1,200주였는데, 대부분이 Shigella flexneri였고, S. sonnei는 약 20%였으며, S. dysenteriae와 S. boydii는 극히 적었다. 분리균의 95%이상이 chloramphenicol(Cm), tetracycline(Tc), streptomycin(Sm), sulfisomidine(Su), ampicillin(Ap), trimethoprim(Tf) 등의 전부 또는 일부 약제에 내성이었으며, kanamycin, nalidixic acid(Na)와 rifampin(Rf)에 내성인 균주는 소수 있었으나, cephaloridine, gentamicin, amikacin 등에 내성인 균주는 없었다. 1973년에 분리된 균은 약 절반이 약제내성이었으나, 1977년 이후 분리된 균은 95% 이상이 약제내성이었다. 1977년 까지는 Cm, Tc, Sm 및 Su의 4제 내성균이 가장 많았으나 1978년 부터는 Cm, Tc, Sm, Su, Ap 및 Tp의 6제 내성균이 가장 많았다. 약 75%의 균이 그 약제내성을 접합에 의하여 Escherichia coli에 전달하였으므로 이 약제내성은 R plasmid에 의한 것으로 생각되었다. 대다수의 균에 있어서 약제내성 전부를 E. coli에 전달하였으나, Na와 Rf의 내성은 전달되지 않았다. 일부 균주의 약제내성은 E. coli에 전달될 때 분리되는 일이 있었으나, 그 수는 극히 적었다. Shigella의 R Plasmid는 대부분이 비적합성군(incompatibility group) F II에 분류되었으나, 극소수는 B군에 속하였고 군별이 안되는 것도 있었다. Shigella strains isloated in the Teagu area during the period from 1973 to 1985 were studied for species distribution, drug resistance, and R plasmids. Approximately 1,200 strains were isolated during this period, and most of them were classified into Shigella flexneri, S. sonnei occupied less than 20%, and S. dysenteriae and S. boydii were very rarely isolated. More than 95% of them were resistant to one or more of these drugs; chloramphenicol (Cm), tetracycline (Tc), streptomycin (Sm), sulfisomidine (Su), ampicillin (Ap), and trimethoprim (Tp). Strains resistant to kanamycin, nalidixic acid (Na), and rifampin (Rf) were rare, and no strain was resistant to cephaloridine, gentamicin, and amikacin. Approximately half of the isolates were resistant to drugs in 1973, but the rate of resistant strains increased to more than 95% from 1977. Strains resistant to the four drugs (Cm, Tc, Sm, and Su) occupied the majority of resistant strains until 1977, but the most prevalent multiplicity of drug resistance increased to six drugs (Cm, Tc, Sm, Su, Ap, and Tp) from 1978 with the marked increase of Ap- and Tp-resistant strains. Approximately 75% of them transferred resistance to Escherichia coli by conjugation, and the resistance was considered to be mediated by R plasmids. Almost all of them transferred the complete patterns of resistance to drugs except Na and Rf. However, among some strains of recent isolates, small numbers of segregants of transferred resistance were observed. The R plasmids in Shigella were mostly classified into Inc FII, and only small numbers into Inc B. Segregants were in most cases unclassified.

Enhancing Performance of Halide Perovskite Photoelectronic Devices by Pressure-Induced Crystallization

전도형,박종혁 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0

Metal lead halide perovskites have been focused as a promising next generation photoelectronic materials. Compositional and deposition approaches have contributed to boosting the photoconversion efficiency and its stability against air and moisture. Although its unprecendented performance breakthrough, metal halide halide perovskites suffer from stagnation in terms of photoconversion efficiency. As a strategic modification, we introduced pressure-induced crystallization method, which can tailor not only nanostructure but also intrinsic properties of metal lead halide perovskites itself resulting in performance efficiency. By exerting pressure with simple and easy-tofollow technique, we developed high-performance photodetectors utilizing nanopillar-structured metal lead halide perovskites, which exhibited enhanced photoresponsivity. Additionally, we succesfully fabricated nanodot-arrayed metal lead halide perovskite films, which shows enhanced film stability against moisture.

푸드뱅크의 정착화 방안에 관한 정책 대토론회

전도석 외 한국보건사회연구원 1999 보건복지포럼 Vol.28 No.-

탄소저감형 중대형 이차전지 제조기술 개발 동향 및 시장 분석

전도만(Do Man Jeon),노진수(Jin Soo Noh),남상열(Sang Yeol Nam),이선미(Sun Mi Lee) 한국에너지기후변화학회 2023 한국에너지기후변화학회 학술대회 Vol.2023 No.5

이메지를 활용한 심리치료법의 이론과 실제

전도성일 한국재활심리학회 1997 재활심리연구 Vol.4 No.1

This is a report on a new type of imagery method whose therapeutic manipulation is chiefly to control the experiential distance between the self and visual imagery. My method, called $quot;Tsubo$quot; Imagery Therapy, consists of the following steps: (1) preparation; (2) passive visualization of several $quot;tsuboes$quot;; (3) minimal feeling in each $quot;tsubo$quot;; (4) rearrangement of the $quot;tsubos$quot;; (5) maximal feeling in each $quot;tsubo$quot;; (6) sealing the $quot;tsubo$quot;; (7) distancing; and (8) entering the next one, or finish. In addition to the control of experiential distance, other major characteristics of our method are: first, the imaged $quot;tsuboes$quot; have the function of a safety device of capsule which protects the patient from being directly exposed to his intense critical experiences; second, special attention is paid to somatic experiences while imaging the $quot;tsuboes$quot;; third, the therapy proceeds in small steps set by the patient's own preferences. My method, effective and with the least danger, is applicable to cases of neurosis and also to relatively serious problems such as borderline.