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Java를 이용한 가상 Cosmetic System 개발
손형도,이재협,윤정식 한국기술교육대학교 2000 論文集 Vol.7 No.1
ABSTRACT A development of attractive web contents which induces the interest of internet users is very important factor that influences the success or failure of internet e-business. Using ViCS(Virtual Cosmetic System), users can apply wide range of hair styles, makeup and accessories to their own facial images loaded on computer screen. Through those simulations, users can decide their favorite hair style and it also can be referred to their future purchase of cosmetics and accessories. It provides many useful functionalities such as zoom in and out, eraser, brush and pen width selection and hair color filter. The system has been built on Windows NT with IIS web server, MS SQL7 and JDBC driver. It can be further improved to include 3D simulation and be applied to various kinds of fashion market.
Nickel 및 Cobalt가 함유된 염산용액중에서 Alamine336에 의한 Fe, Mn 및 Zn의 분리
안재우,안종관,박경호,손정수 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.6
The separation and recovery of cobalt and nickel from hydrochloric leaching solutions of manganese nodules were imitated by solvent extraction using Alamine336 in Xylene. The behavior of impurities such as iron, zinc, copper and manganese was also investigated. With the increase of chloride ion concentration, cobalt was selectively extracted from nickel owing to the difference of chlorocomplex in solution and the minimum chloride ion was 5.0M. But in this extraction step, the impurity metals such as copper, iron, manganese, zinc were also co extracted in the organic phase. However, co-extracted metals in the organic phase could be effectively separated in the scrubbing and stripping step. Manganese and nickel were effectively removed in the scrubbing step with 6.0M hydrochloric solutions but copper, iron and zinc were loaded in the organic phase with cobalt. Finally, the metal-bearing organic phase was contacted with the hydrochloric strip solution to recover the loaded cobalt. The impurity metals were effectively removed in this step with controlling the concentration of chloride ions in the strip solution. From the experiment, The behaviors of impurities on each of operation steps in extraction, scrubbing and stripping processes were investigated. Consequently the optimum condition for the separation of cobalt from hydrochloric solution were proposed.
A. 高校 科學 (生物·地球科學) 및 數學科 探究學習의 評價模型 定立과 評價紙 開發
李相協,權炳奎,林在圭,孫文求,吳岱燮,楊洪準,梁承榮,姜用熙,林成圭,金正遠,金吉民,兪正在 경북대학교 과학교육연구소 1982 科學敎育硏究誌 Vol.6 No.-
Currently the evaluation of high school science and mathematics learning has been too much knowledge-centered without concerning the inquiring ability or scientific attitude. This study, therefore, was made for the purpose of establishing of evaluation model for high school science (biology and earth science) and mathematics learning and its evaluation items. In this paper, the research was done about three fields, biology, earth science and mathematics. 1. For the biology, the evaluation methods of inquiry learning were studied with the foreign references, and proper evaluation items were suggested. 2. For the earth science, after analizing 5 kinds of earth science textbook of current using in high school, essential 19 items were selected. 5 of them were tested in test group and control group, then, the results were analized. 3. For the mathematice, the teaching elements of「Set」and「Flow chart」in mathematics (Ⅰ) were selected and structured. Detailed teaching objects were established and evaluation items were introduced.
Shon, Yuran,Kim, Hyun,Hwang, Hong Seop,Bae, Eun Sil,Eom, Taesik,Park, Eui Jung,Ahn, Wha-Seung,Wie, Jeong Jae,Shim, Bong Sup Elsevier 2017 Sensors and actuators. B Chemical Vol.244 No.-
<P><B>Abstract</B></P> <P>Thylakoids, on which complete sets of photosynthetic membrane proteins are contained, behave as soft nanoparticles of a few tens nm sizes. Thus, we separated the thylakoid extracts from spinach chloroplasts and densely organized them in a film with either insulating polyethyleneimine (PEI) or conducting polyaniline (PANI) by molecularly controlled layer-by-layer (LBL) assembly. The resulting nanostructured composite films demonstrated photoelectrochemical activities with thylakoids whose stabilities were significantly improved on the charge balanced LBL multilayers compared to one on a randomly deposited film or in solution. The thylakoid LBL films continuously generated photochemical electrons for longer than 130h with the 2,6-dichlorophenolindophenol (DCPIP) mediated photosynthetic energy conversion cycle while photoactivities of thylakoid moiety slowly decreased in the open circuit potential measurements throughout which the photosynthetic redox cycles were incomplete. As the photofunctional groups of the thylakoid films originated from a biotic system and the photofuctional thylakoids were exceptionally well preserved on the charge-balanced artificial structures, the developed thylakoid LBL film have shown inherent biocompatibility upon PC12 neural cell attachment and differentiation tests, which are essential qualities for emerging human-friendly electronic applications such as disposable electronics, artificial retina, and implantable neural interfacing meditronics as well as cell-free photosynthetic production.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Thylakoid complexes, extracted from spinach chloroplasts, were densely organized in a film with insulating polyethyleneimine (PEI) or conducting polyaniline (PANI) by layer-by-layer (LBL) assembly. </LI> <LI> The thylakoid LBL films continuously generated photochemical electrons for longer than 130h. </LI> <LI> The thylakoid LBL film has shown inherent biocompatibility upon PC12 neural cell attachment and differentiation tests. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Shon, Chang-Seon,Kim, Young-Su,Jeong, Jae-Dong Korea Concrete Institute 2003 콘크리트학회논문집 Vol.15 No.3
Supplementary cementitious materials (SCM) such as fly ash, ground granulated blast furnace slag and silica fume are now being extensively used in concrete to control expansion due to alkali-silica reactivity (ASR). However, the replacement level of a single SCM needed to deleterious ASR expansion and cracking may create other problem and concerns. For example, incorporating silica fume at levels greater than 10% by mass of cement may lead to dispersion and workability concerns, while fly ash can lead to poor strength development at early age, The combination of silica fume and fly ash in ternary cementitious system may alleviate this and other concerns, and result in a number of synergistic effects. The aim of the study was to enable evaluation of more realistic suitability of a silica fume-fly ash combination system for ASR resistance based on an in-house modification of ASTM C 1260 test method. The modification can be more closely identified with actual field conditions. In this study three different strengths of NaOH test solution(1N, 0.5N, and 0.25N) were used to measure the expansion characteristics of mortar bar made with a reactive aggregate. The other variable included longer testing period of 28 days instead of a conventional 14 days.