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사무용 의자의 물리적 적합도 평가를 위한 휴먼인터페이스요소 개발
박수찬(Soo Chan Park),김진호(Jin Ho Kim),신미경(Mi Kyung Sin),최경주(Kyung Ju Chai),이영신(Young Shin Lee) 한국가구학회 1999 한국가구학회지 Vol.10 No.2
The goal of the present study is to develop the Human Interface Elements(HIE's) for evaluating the physical suitability of office chairs. HIE is generally defined as the physical characteristic of manufacturing goods, and it is closely related to the body dimension of a user and environment that it is used. In the present study the design elements of a chair were investigated, and from here, HIE's of office chair were developed based on relatedness of the design components, the physical characteristics of users, and characteristics of an environment that it used. As a result, components of a chair were classified as 6 major parts: Seat pan, back rest, arm rest, function control unit, seat supports and whole system. 43 HIE's were extracted from these 6 components. Also, the method for measuring HIE were developed.<br/> Keywords: suitability, evaluation, office chair, human interface elements<br/>
( Chaitanya ),인수일 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0
Photocatalytic reduction of CO<sub>2</sub> to fuel offers an exciting opportunity for helping to solve current energy and global warming problems. Although a number of solar active catalysts have been reported, most of them suffer from low product yield, instability, and low quantum efficiency. Therefore, the design and fabrication of highly active photocatalysts remains an unmet challenge. In the current work we utilize hydrogen-doped, blue-colored reduced titania for photocatalytic conversion of CO<sub>2</sub> into methane (CH<sub>4</sub>). The photocatalyst is obtained by exposure of TiO<sub>2</sub> to NaBH<sub>4</sub> at 350 °C for 0.5 h. Sensitized with Pt nanoparticles, the material promotes solar spectrum photoconversion of CO<sub>2</sub> to CH<sub>4</sub> with an apparent quantum yield of 12.40% and a time normalized CH<sub>4</sub> generation rate of 80.35 μmol g-1 h-1 .
Chairunnisa,Takata N.,Thu K.,Miyazaki T.,Nakabayashi K.,Miyawaki Jin 한국탄소학회 2021 Carbon Letters Vol.31 No.4
Preparation of activated carbon from biomass residue with conventional steam activation was conducted to fnd the alternative raw materials for meeting the high demand for low-cost porous material in the desiccant application. In this study, activated carbons were produced from dead camphor leaves using two-step methods at diferent preparation temperatures. The characterization results revealed that the prepared activated carbons have a surface area of 700 m2 /g, with 75% of microporosity. The water vapor sorption study reported that the water uptake of camphor leaf-based activated carbons was strongly afected by the pore properties of the materials. Moreover, from the water adsorption kinetics, it was observed that the rate constant of adsorption was varied at each relative pressure, which can be assumed that the water adsorption mechanism is diferent at each relative pressure. From these results, it was revealed that the prepared camphor leaf-based activated carbons have a promising ability to adsorb water vapor from humid air.
張在薰,曺載浩,金載翊 최신의학사 1968 最新醫學 Vol.11 No.5
The prevalence of intestinal protozoa infection at Chinjoo and Sachon area was surveyed by the method of simple direct smear of feces during autumn, 1967. The result of the survey is as follows: of 650 school children, 579 junior high school boys at Chinjoo and 347 school children at Sachon the prevalence of Entamoeba histolytica was 1.2^2.6 %, Entamoeba coli 6.49.50, Endolimax nana 2.0^2.9%, Giardia lamblia 2.3^4.3%, Chilomastix mesnili 00.2%, and Iodamoeba butschlii was 0.2^0.6%.
김동칠(Dongchil Kim),양창모(Chang Mo Yang),송재종(Chai-Jong Song),박성주(Sungjoo Park) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.6
This paper proposes a automatic life logging scheme for life media services. The proposed scheme automatically collects various sensor data of a PC, a smartphone, home sensors, and wearable devices of users. It also converts forms of life log data into defined metadata and manages the user information.
최창진,이영행,이채호,김쌍오,채규윤 圓光大學校 基礎自然科學硏究所 1987 基礎科學硏究誌 Vol.6 No.2
The reaction of N-benzyl β-amino acids with benzensulfonyl chloride in a chloroform-water bilayer system in the present of 15 mole % of tetrabutylammonium hydrogen sulfate gives the corresponding β-lactams in good yields.