공원 조성 시 설계⋅시공의 인식차 및 최소화의 방안 분석

차은희,김해민,왕징,왕이연,사작화,민병욱 한국디자인문화학회 2023 한국디자인문화학회지 Vol.29 No.3

Efforts have been made to implement various ideas such as design contests to continuously improve the quality of park green areas through the construction of new cities. However, unlike efforts to improve the quality of the design, the completed target site is often realized differently from the intended design through a procedure called ‘design change’. Therefore, the study aims to find out why works such as design contests that implement creative ideas through the efforts of designers cannot be implemented at the construction site as they are, and what is the gap between design and realization, especially construction. Through this, the designer’s plan is implemented as much as possible, and it is intended to contribute to improving the convenience of construction for the contractor to provide a basis for the spatial plan in which changes in the plan are minimized. As for the physical scope, the design and construction process of Dongtan Lake Park located in Dongtan-myeon, Hwaseong-si, Gyeonggi-do was selected as an example. The park is a park that reflects specialized design through a nomination invitation contest, and a plan containing creative ideas from designers was implemented. Considering the size of the target site, four experts who participated in the design and completion of the project focused on “Waterfront Culture Plaza” and “Nest Garden” among Dongtan Lake Park to analyze why the design intention was not implemented. In addition, previous studies were supplemented in parallel The main result of the interview was that the designer was disappointed that the park was not implemented as originally intended, and the construction and manager were disappointed that the design was insufficient. As a common opinion, there were many opinions that facilities or space composition reflecting users’ needs, especially waterfront cultural plaza needs rest facilities that provide shade, and Nest Garden needs various flowering plants that grow well considering soil conditions. Based on interviews with the target site and experts, three factors that cause differences between designers and construction fields were summarized. First, there is a difference of opinion on the user’s usage behavior. There may be a gap between the intended use pattern and the actual use by the designer, so if the designer carefully reviews and plans it, future changes can be reduced. Second, the lack of field condition analysis prevents the design intention from being implemented as it is. If the designer conducts a close field analysis and designs, changes can be minimized during construction. Third, the lack of expertise of designers can affect the gap between design and construction. Insufficient parts of drawings, such as implementation design, have no choice but to be supplemented during construction, and may be supplemented in a different direction than the designer intended at that time. And a lack of understanding of various landscaping materials is a factor that prevents the design from being implemented. If the designer takes the aforementioned contents into account from the beginning of the design, it is believed that the designer’s intention can be implemented as much as possible and the design can minimize changes and inconveniences in construction.

The Corrosion Study of Al Current Collector in Phosphonium Ionic Liquid as Solvent for Lithium Ion Battery

차은희,문준영,조이랑,임태은,김영규,오승모,임수아,임재욱 한국전기화학회 2011 한국전기화학회지 Vol.14 No.3

A room temperature ionic liquid (RTIL) based on trihexyl (tetradecyl)phosphonium bis(trifluoromethanesulfonyl) imide ([(C_(6)H_13)_(3)P(C_(14)H_29)] [TFSI];P_(66614)TFSI) was synthesized and analyzed to determine their characteristics and properties. The bis(trifluoromethanesulfonyl)imide (TFSI) anion is widely studied as an ionic liquid (IL) forming anion which imparts many useful properties, notably electrochemical stability. Especially its electrochemical and physical characteristics for solvent of lithium ion battery were investigated in detail. P_(66614) TFSI exhibits fairly low conductivity (0.89 mS cm^(−1)) and higher viscosity (298 K: 277 cP; 343 K: 39 cP) than other ionic liquids, but it exhibits a high thermal stability (over 400oC). Especially corrosion behavior on Al current collector was tested at room temperature and further it was confirmed that thermal resistivity for Al corrosion was highly increased in 1.0M LiTFSI/P_(66614-)TFSI electrolyte comparing with other RTILs by linear sweep thermometry.

무용학원의 경영마인드, 지도자, 만족도, 재 구매 관계

차은희,조선하 한국스포츠리서치 2006 한국 스포츠 리서치 Vol.17 No.2

4라운드 골프경기가 호흡순환계 및 평형성 기능 변화에 미치는 영향

차은희,양일구,안문용 한국스포츠학회 2013 한국스포츠학회지 Vol.11 No.3

휴대폰 전자파 차단에 관한 연구 - 남성복 상의 안 Pocket을 중심으로 -

차은희,송명견 한국지역사회생활과학회 2003 한국지역사회생활과학회 학술대회 자료집 Vol.2003 No.-

이상의 연구를 통하여 다음과 같은 결과를 얻었다.<br/> 첫째, 휴대폰을 포켓에 넣지 않았을 때와 차단 가공이 안된 소재에서 전자파 투과량이 0.036~0.051㎽/㎠로 안전기준치 0~0.02㎽/㎠ 초과하였으며 전자파 차단 가공 소재를 안감으로 사용하였을 때의 투과량은 0~0.012㎽/㎠로 안전기준치 이내의 양이었다.<br/> 둘째, 휴대폰 뒷면의 전자파 투과량이 휴대폰 앞면에 비하여 높았다.<br/> 셋째, 전자파 차단 가공제로 나켈만을 도포한 소재에서는 투과량이 다소 높았으나 안전기준치를 초과하지는 않았다.<br/> 넷째, 총 전자파 투과량은 포켓에 넣지 않았을 때와 가공 처리를 하지 않은 안감의 경우 0.083㎽/㎠을 초과하였고 가공처리를 한 경우에도 0.043㎽/㎠을 초과하였다.<br/> 이상의 결과로 남성복 안 Pocket에 전자파 차단제 처리를 한 소재의 사용이 바람직할 것으로 생각되어지며, 휴대폰의 뒷면이 인체 바깥으로 향하도록 하는 것이 보다 효과적이라 생각되어진다.

휴대폰 전자파 차단에 관한 연구 - 남성복 상의 안 Pocket을 중심으로 -

차은희,송명견 한국지역사회생활과학회 2003 한국지역사회생활과학회지 Vol.14 No.2

Physical Properties of Lithium Co-polyelectrolyte Based on Imidazolium and Ammonium-type Ionic Liquids

차은희,S.A. Lim,김동원,이재관,J.H. Park 한국전기화학회 2010 한국전기화학회지 Vol.13 No.3

Lithium co-polyelectrolyte-ionic liquid systems, using poly (lithium 2-acrylamido-2-methyl propanesulfonate; PAMPSLi) and polyvinyl formamid (PVF) were prepared and their electrochemical and physical properties were measured. The conductivity of co-polymer systems,PAMPSLi/PVF/N, N-dimethyl-N-propyl-N-butylammonium tricyanomethanide (PAMPSLi/PVF/N1134TCM) and PAMPSLi/PVF/N, N-dimethyl-N-propyl-N-butylammonium dicyanamide (PAMPSLi/PVF/N1134DCA) exhibited low viscosity (N1134TCM:N1134DCA 28.6cP, 28.7cP) and higher conductivity (2.48 × 10−3 Scm−1, 2.2 × 10−3 Scm−1) than homopolymer system. The ionic conductivity PAMPSLi/PVF/1-ethyl-3-methyl imidazolium dicyanamide (PAMPSLi/PVF/emImDCA)exhibited 1.54 × 10−3 Scm−1 and low viscosity (emImDCA: 28.09cP). High flexibility of imidazolium cation and dissociation of lithium cation from the co-polymer chains were affected by high conductivity and low viscosity.

Electrochemical Properties of Gel Copolymer-Electrolyte Based on Phosphonium Ionic Liquid

차은희,S.A. Lim,J.H. Park,김동원,박주훈 한국전기화학회 2008 한국전기화학회지 Vol.11 No.4

Noble Poly (lithium 2-acrylamido-2-methyl propane sulfonate) and its copolymer withN-vinyl formamide based on trihexyl (tetradecyl) phosphonium acetate [(C6H13)3 P (C14H29)CH3COO; P66614 CH3COO) and trihexyl (tetradecyl)phosphonium bis(trifluoromethane sulfonyl) amide([(C6H13)3P(C14H29)] [TFSA];P66614TFSA) were prepared and analyzed to determine their characteristicsand properties. The ionic conductivity of a copolymer based P66614TFSA ionic liquidsystem exhibits a higher conductivity (8.9 × 10-5Scm-1) than that of a copolymer basedP66614CH3COO system (1.57 × 10-5Scm-1). The charge on the TFSA anion is spread very diffuselythrough the S-N-S core and particularly in the trifluoromethane groups, and this diffusionresults in a decreased interaction between the cation and the anion. The viscosity of P66614TFSA(39 cP at 343 K) and P66614CH3COO (124 cP at 343 K), which is very hydrophobic, was fairlyhigh. High viscosity leads to a slow rate of diffusion of redox species. The ionic conductivityof copolymer of a phosphonium ionic liquid system also exhibits higher conductivity than thatof a homopolymer system. Phosphonium ionic liquids were thermally stable at temperatures upto 400oC

[나의 박사 논문을 말한다] 서양 여성 선교사들, 한국 여성에게 영향을 주고, 영향을 ‘받다’

차은희 대한기독교서회 2021 基督敎 思想 Vol.745 No.-

Studies on synthesis of CdSe/ZnS nanoparticle base on ionic liquid

차은희 호서대학교 기초과학연구소 2010 기초과학연구 논문집 Vol.18 No.1

New aspects of ionic liquid was approched in applications where the semiconductor nanoparticles used as sensitizers of solar cells. The characterization of p6614 TFSI ionic liquid was analyzed and the effects of ionic liquid as capping ligand and/or solvent was studied on the morphology and phase of the CdSe/ZnS nanoparticles. Colloidal CdSe/ZnS nanoparticles were synthesized using a mixture of trihexyltetradecyl -phosphonium bis(trifluoromethyl sulfonyl) imide P66614 TFSI and octadecene(ODE). The CdSe/ZnS nanoparticles have a small size(5.5nm) and with a controled phase from zinc-blende to wurtzite by increasing the volume ration of P66614 TFSI.