• Title/Summary/Keyword: clean elements

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A Study on development of Resourse - saving site Planning techniques based on utilization of Ecosystem - Focused on Housing site - (생태계를 이용한 자원절약형 단지계획기법 개발에 관한 연구 - 주거단지를 중심으로-)

  • 이영무
    • Journal of the Korean Institute of Landscape Architecture
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    • v.18 no.2
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    • pp.111-125
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    • 1990
  • Korea is a nation with poor natural resources. There is a greats need to save resources that are running out in fast face. The purpose of this thesis is to bind the means to save rosources in housing site, especially in highrise apartment. The reason why the high-rise apartments are chosen as a case is 7hat the high-rise is becoming the major form of dwelling in most urban areas. As a tool of saving the ecological way is chosen because ecological energy is free, clean and unlimited. The resources to be saved are divided into two categories, namely energy and non - energy resources as water, land and food. The contents of the thesis are comprised of 4 chapters. The early chaspters are devoted to the understanding of the ecosystem and problems of current energy consumption in the apartment. It is fellowed by the introduction of the hypothesis that can possibly save reouruces. The hypothesis are then transformed into the actual theories through verification, to be established as the new techniques of the site planning. The ecosystem is the functional relationship between the living organisms and their physical surroundings. The living organisms are the plants that produce, animals that consume and bacterias that decompose. They live in the environment which consists of the three worlds of atmosphere, hydrosphere and lithosphere. The whole system is activated by the solar energy that turns the inorganic mallet- into the living organism and back to the inorganic. It is the recycling principle of the ecosystem. The elements of ecosystem that fan be unilimited as the tools of resources -saving are the sun, wind, water, soil, plant and waste. They are unlimited sources of energy. free of pollution and cheap in price. Each of these ecological elements Provide the opportunities that can save the heating fuel, air conditioning energy, water resource, land and food. The ecological approch should be pursued actively in this age of short resources and growing pollution. In the scale of total energy consumption the housing takes the second position next to the industrial use. It is followed by the transportation which shows for less consumption than former two.

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A Study on Characteristics of User-Focused Interior Design in Common Space Composition of Contemporary General Hospitals - Focused on Overseas Case - (현대 종합병원 공용공간구성의 사용자중심적 실내디자인 특성 연구 - 해외사례를 중심으로 -)

  • Kim, Jeong-Ah
    • Korean Institute of Interior Design Journal
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    • v.23 no.5
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    • pp.174-182
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    • 2014
  • As patients prefer large scale hospitals recently, the interior design of general hospitals are conspicuously improving. In the past, most patients visit hospitals to get treatment on diseases; however, recently patients visiting hospitals for the early prevention of disease is rapidly increasing. Accordingly, contemporary hospitals should meet the wish of patients who want to get medical service in more clean and comfortable environment. The existing studies on hospital interior design were mostly limited on analyzing the functionality of each space; however, studies on the interior design of common use space, which is open to all hospital users, are required now. Accordingly, this study classified the common use space in contemporary general hospitals into lobby space, corridor space, waiting space and resting space. The interior design characteristics of each space were classified into; connectivity with external environment, level change by void, introduction of natural elements, dynamics of space and variety of color. Then a case analysis was done by selecting 12 common use spaces in overseas general hospitals. According to the analysis result, the interior design characteristics were more conspicuous in the sequence of corridor space, lobby space, resting space and waiting space. The interior design elements such as overall space arrangement and material-finishing were relatively acceptable; however, the aspect of a user's environmental behavior, in other words, the psychological aspect, which can lead a patient to natural healing, was relatively insufficient. It is believed that an in-depth interior design focusing on practical users would enable various spatial behaviors. It is hoped that this study would be a help to the interior design of domestic general hospitals as a guideline.

Verify a Causal Relationship between Fine Dust and Air Condition-Weather Data in Selected Area by Contamination Factors (오염 요인별 지역선정을 통한 대기-기상자료의 미세먼지 인과관계 검증)

  • Han, Jeong-Min;Kim, Jae-Goo;Cho, Ki-Hyun
    • The Journal of Bigdata
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    • v.2 no.1
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    • pp.17-26
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    • 2017
  • The gradual desertification in Northeastern China brought about by the industrial development and global warming, has affected the Korean peninsula as evident by the ultrafine dust geographically and seasonally. People with severe respiratory problems, senior citizens and the infants are susceptible to the ill effects of fine dust which could prove fatal to them. Hence, we need to study the root cause of fine dust emergence and the correlation verification between fine dust and its side effects. This study firstly analyzed clean and contaminated areas classified by industrial elements. We utilized air, weather and industrial data in the area. Next, we detected a change of fine dust in terms of weather and climate. We analyzed correlation of air and weather by influence from domestic and neighboring country. The result indicated that China is the culprit of the emergence of fine dust predicament. Consequently, we can prove that fine dust ($PM_{10}$) and ultrafine dust ($PM_{2.5}$) could arise from geographical, seasonal, and pollutant elements. Therefore, we propose the optimum to make countermeasures about fine dust in terms of industry, topography, population and living residence.

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Measurement of Aerosols and Ice Clouds Using Ellipsometry Lidar (타원편광 라이다 개발 및 이를 이용한 에어로졸과 구름의 특성 측정)

  • Kim, Dukhyeon;Cheong, Hai Du;Volkov, Sergei N.
    • Korean Journal of Optics and Photonics
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    • v.26 no.1
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    • pp.9-16
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    • 2015
  • We have developed ellipsometry lidar and measured aerosol and ice-cloud characteristics. To measure a full normalized backscattering phase matrix (NBSPM) composed of nine elements, we have designed an optical system with three kinds of transmission and three kinds of reception, composed of ${\lambda}/2$ waveplate, ${\lambda}/4$ waveplate and empty optic. To find systematic optical errors, we used clean day middle-altitude (4-6km) lidar signals for which the aerosol's concentration was small and its orientation chaotic. After calibrating our lidar system, we have calculated NBSPM elements scattered from an aerosol and from an ice cloud. In the case of an aerosol, we found that the off-diagonal values $m_{12},{\ldots},m_{34}$ of the NBSPM are smaller than those for a cirrus cloud. Also, the off-diagonal values of the NBSPM from a cirrus cloud depend on atmospheric conditions.

Consumer Satisfaction with Medical Services and Hospital Patient Gowns (병.의원의 의료서비스와 환자복에 대한 소비자 만족)

  • Chung, Ihn-Hee;Lee, Yun-Jung
    • Journal of the Korean Society of Clothing and Textiles
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    • v.34 no.3
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    • pp.401-410
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    • 2010
  • This study identifies consumer satisfaction with medical services and the patient gowns of hospitals. Also analyzed are the elements that influence hospital satisfaction and the general satisfaction with patient gowns. A survey was conducted among Korean male and female ex-patients regardless of their age. A total of 513 responses were analyzed using descriptive statistics, paired t-test, correlations, regression, and factor analysis derived from data collected in April and May, 2009. The results are as follows. The general satisfaction with the hospital recently visited was higher than the general satisfaction with all of the hospitals visited. The satisfaction with medical services were high in good services, trustful medical examinations, easy access to utilities, and clean utilities. Hospital satisfaction was determined by good services, trustful medical examinations, easy access to utilities, patient gowns, and fresh indoor air. The satisfaction factors of general patient gowns were determined as functionality, fabric/design, sewing, and the management system factors. The most important factor explaining patient gown satisfaction was fabric/design, and this was the most unsatisfied factor at the same time.

A Study on the Analysis of Elements of Interior Environmental Planning for Cultural Vitality of Underground Space (지하공간의 문화적 활성화를 위한 실내 환경계획요소의 분석에 관한 연구)

  • Lee, Hyo-Chang;Han, Jung-Ho;Ha, Mi-Kyoung
    • Korean Institute of Interior Design Journal
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    • v.19 no.5
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    • pp.234-242
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    • 2010
  • In order to make an effective use of spatial resources in the city, detailed environmental plan strategies based on 'culture' are needed. An integral part of city spaces-'underground space' serves as one of the spatial resources with much effective usage potentials. Hence, 'underground space' needs cultural vitality. The purpose of this study is to propose an thorough indoor environmental plan guideline for the cultural vitality of 'underground space'. The methods used to conduct research include precedent study reviews and survey. Through this research, following conclusions are drawn. First, to promote cultural vitality at the 'underground space', it must be transformed into the cultural public place to be utilized for cultural activities by residents. Second, the 'underground space' requires 'concept of eco-friendly space for clean environment'. Third, 'safe environment' concept must be installed in the 'underground space' to promote the cultural vitality. Fourth, the 'underground space' requires 'complex/block level network plans between cultural spaces in addition to horizontal/vertical walking network between cultural environments in ground level and underground spaces. Fifth, the 'underground space' requires underground public cultural space plan through 'reasonable underground development with considerations of the facilities related to education, culture and history'. Sixth, 'public cultural space plan for various cultural spaces' and 'supply of space for cultural activities for residents and design plan for mutual culture exchange' are necessary.

Bio-diesel of Vegetable Oils by Lipase Catalyzed Trans-esterification into Continuous Process (연속공정에서 리파제 촉매 전이에스테르화에 의한 식물유의 바이오디젤화)

  • Hyun, Young-Jin;Kim, Hae-Sung
    • Journal of the Korean Applied Science and Technology
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    • v.22 no.2
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    • pp.106-115
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    • 2005
  • Bio-diesel as fatty acid methyl ester was derived from such oils as soybean, peanut and canola oil by lipase catalyzed continuous trans-esterification. So the activation of lipase(Novozym - 435) was kept to be up to 4:1, the limiting molar ratio of methanol to oil under one-step addition of methanol due to the miscibility of oil and methanol through the static mixer for 4hrs and the elimination of glycerol on the surface of lipase by 7wt% silica gel. Therefore the overall yield of fatty acid methyl ester from soybean oil appeared to be 98% at 50$^{\cdot}C$ of reaction temperature under two-steps addition of methanol with 2${\times}$2:1 of methanol to oil molar ratio at an interval of 5.5hrs, 7wt% of lipase, 24 number of mixer elements, 0.2ml/min of flow rate and 7wt% of silica gel.

Study on Dynamic Characteristic & Performance of the Air Supply System for PEM Fuel Cell (고분자 전해질 연료 전지용 공기공급계의 동특성 및 성능에 대한 연구)

  • Lee, Hee-Sub;Kim, Olang-Ho;Lee, Yong-Bok
    • The KSFM Journal of Fluid Machinery
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    • v.9 no.6 s.39
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    • pp.45-53
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    • 2006
  • Turbo-blower as an air supply system is one of the most important BOP (Balance of Plant) systems for FCV(Fuel Cell Vehicle). For generating and blowing compressed air, the motor of air blower consumes maximum 25% of net power, and fuel cell demands a clean air. In this study, turbo-blower supported by air foil bearings is introduced as the air supply system used by 80kW proton exchange membrane fuel systems. The turbo-blower is a turbo machine which operates at high speed, so air foil bearings suit their purpose as bearing elements. Analysis for confirming the stability and endurance is conducted. The rotordynamic stability was predicted using the numerical analysis of air foil bearings and it is verified through experimental works. In spite of various transient dynamic situation, the turbo-blower had stable performances. After the performance test, results are presented. The normal power of driving motor has about 1.6 kW with the 30,000 rpm operating range and the flow rate of air has maximum 160 SCFM. The test results show that the aerodymic performance and stability of turbo-blower are satisfied to the primary goals.

A Comparative Study on the Institutional Arbitration and Ad Hoc Arbitration (기관중재와 임시중재에 관한 비교연구)

  • Oh, Won-Suk;Kim, Yong-Il
    • Journal of Arbitration Studies
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    • v.19 no.1
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    • pp.25-44
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    • 2009
  • The purpose of this parer is to examine the specifies of Institutional Arbitration and Ad Hoc Arbitration. The court prefers the institutional award in the enforcement rather than the award issued under the name of arbitrators alone. For example, the ICC Court of Arbitration scrutinizes awards for completeness, adherence to the ICC Rules and internal consistency, which since the court assurance for enforcement. In terms of arbitration costs, for which the ad hoc arbitration is considered to have comparative advantages, the institutional arbitration may not be more expensive than ad hoc arbitration, as in most commercial case, the administrative fees are insignificant. This paper suggests the standard or model arbitration clauses in institutional and ad hoc arbitrations. These Clauses contains the minimum elements necessary to render the arbitration agreement enforceable and effective. So both parties may add the specific contents such as the number of arbitrator, the place of arbitration and the language. Especially, in Ad Hoc Arbitration without designated set of rules, more clean clause for appointing arbitrators will be needed.

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An Intelligent Human-Machine Interface for Next Generation Nuclear Power Plants

  • Park, Seong-Soo;Park, Jin-Kyun;Hong, Jin-Hyuk;Chang, Soon-Heung;Kim, Han-Gon
    • Proceedings of the Korean Nuclear Society Conference
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    • 1995.10a
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    • pp.191-196
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    • 1995
  • The intelligent human-machine interface (HMI) has been developed to enhance the safety and availability of a nuclear power plant by improving operational reliability The key elements of the HMI are the large display panels which present synopsis of the plant status and the compact, digital work stations for the primary operator control and monitoring functions. The work station consists of four consoles such as a dynamic alarm console (DAC), a system information console (SIC), a computerized operating-procedure console (COC), and a safety related information console (SRIC). The DAC provides clean alarm pictures, in which information overlapping is excluded and alarm impacts are discriminated, for quick situation awareness. The SIC covers a normal operation by offering all necessary plant information and control functions. In addition, it is closely linked with the DAC and the COC to automatically display related system information under the request of these consoles. The COC aids the operator with proper emergency operation guidelines so as to shutdown the plant safely, and it also reduces his physical/mental burden by automating the operating procedures. The SRIC continuously displays safety related information to allow the operator to assess the plant status focusing on plant safety. The proposed HMI has been validated and demonstrated with on-line data obtained from the full-scope simulator for Yonggwang Units 1,2.

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