• Title/Summary/Keyword: common use

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Growth Model of Common Ice Plant (Mesembryanthemum crystallinum L.) Using Expolinear Functions in a Closed-type Plant Production System (완전제어형 식물 생산 시스템에서 선형 지수 함수를 이용한 Common Ice Plant의 생육 모델)

  • Cha, Mi-Kyung;Kim, Ju-Sung;Cho, Young-Yeol
    • Horticultural Science & Technology
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    • v.32 no.4
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    • pp.493-498
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    • 2014
  • The objective of this study was to make growth and yield models for common ice plant (Mesembryanthemum crystallinum L.) using expolinear functional equations in a closed-type plant production system. Three-band radiation type fluorescent lamps with a 12-hours photoperiod were used, and the light intensity was $200{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$. Nutrient film systems with three layers were used for plant growth. Environmental conditions, such as air temperature, relative humidity and $CO_2$ concentration were controlled by an ON/OFF operation. Leaf area, shoot fresh and dry weights, light use efficiency of common ice plant as function of days after transplanting, accumulative temperature and accumulative radiation were analyzed. Leaf area, shoot fresh and dry weights per area were described using an expolinear equation. A linear relationship between shoot dry and fresh weights was observed. Light use efficiency of common ice plant was $3.3g{\cdot}MJ^{-1}$ at 30 days after transplanting. It is concluded that the expolinear growth model can be a useful tool for quantifying the growth and yield of common ice plant in a closed plant production system.

Sense of Community and Community Interaction of Mixed-use Residential Buildings′ Residents : Comparisons between Groups of Mixed-use Residential Buildings′ Residents and their Expected Residents (초고층 주상복합 건물 거주자의 지역공동체의식과 근린활동 - 거주자와 입주예정자의 비교를 중심으로 -)

  • 이경희;채혜원
    • Journal of Families and Better Life
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    • v.22 no.3
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    • pp.1-9
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    • 2004
  • The purposes of this study were (a) to compare the level of sense of community and community activity of the mixed-use residential buildings' residents with the expected residents for the mixed-use residential building, (b) and to investigate the degree of their needs of social interaction. For the survey the questionnaire from 176 residents of mixes-use residential building in Seoul, and 67 expected residents in Bundang Newtown are used. The analytical methods adopted in this study were frequency, percentage, chi-square test and t-test. It was found that the level of sense of community and the community activities of the mixed-use residential building' residents were higher than those of the expected residents. Their residents reported higher degree of participation on community activities than the expected residents. It was also found that the common space in their residential area promoted the residents' sense of community and community activity.

Community-based Sustainable Use of Environment : a Case of Jeju-Haenyeo's Common Resource Management (공동체 기반 자연환경의 지속가능한 이용 방안 -제주해녀의 공유자원 관리 사례-)

  • Kim, Kwonho;Kwon, Sangcheol
    • Journal of the Korean association of regional geographers
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    • v.22 no.1
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    • pp.49-63
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    • 2016
  • Environmental degradation and economic bipolarization have become major issues as the aftermath of the globalizing capitalism. Commons have received attention as an alternative to capitalistic use of resources. The most representative is the neo-institutionalist approach where Elinor Ostrom's study summarizes fundamental principles of common resource management. Maria Mies also insists that co-relationship in a community is the most essential to manage common resource successful. In a similar vein, this study attempts to prove that common resource management can create solutions to socioeconomic problems and ways to prevent resource scarcities in the future. Jeju-Haenyeo community is chosen as a successful case to be examined based on the fundamental principles of commons and community. Qualitative surveys have preceded for Jeju-Haenyeo to elaborate and extend the aspects of common resource use and management. This study can bring a positive influence on understanding the Jeju-Haenyeo community and other common resources management institutions.

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Experimental Study on the Application Characteristics of Bio-diesel blended Fuel by Ultrasonic Irradiation in CRDI type Diesel Engine (CRDI 방식 디젤기관의 초음파 조사 Bio-diesel 혼합연료 적용 특성에 관한 실험 연구)

  • Jung, Y.C.;Im, S.K.;Park, S.Y.;Choi, D.S.;Ryu, J.I.
    • Journal of ILASS-Korea
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    • v.12 no.3
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    • pp.131-137
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    • 2007
  • This is an experimental study on characteristics of engine performance and discharged materials in common-rail type diesel engine. The bio-diesel fuel is mixed with the diesel fuel in common use at the ratio of 20% or 100%. The diesel fuel and blended fuel is irradiated by ultrasonic wave energy. The diese1 fuel, blended fuel, reformed diesel fuel and reformed blended fuel by ultrasonic wave energy are applied to the experimental engine individually. The results are compared with one of the diesel fuel in common use and analyzed.

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Analysis of Variance for Using Common Random Numbers When Optimizing a System by Simulation and RSM (시뮬레이션과 RSM을 이용한 시스템 최적화 과정에서 공통난수 활용에 따른 분산 분석)

  • 박진원
    • Journal of the Korea Society for Simulation
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    • v.10 no.4
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    • pp.41-50
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    • 2001
  • When optimizing a complex system by determining the optimum condition of the system parameters of interest, we often employ the process of estimating the unknown objective function, which is assumed to be a second order spline function. In doing so, we normally use common random numbers for different set of the controllable factors resulting in more accurate parameter estimation for the objective function. In this paper, we will show some mathematical result for the analysis of variance when using common random numbers in terms of the regression error, the residual error and the pure error terms. In fact, if we can realize the special structure of the covariance matrix of the error terms, we can use the result of analysis of variance for the uncorrelated experiments only by applying minor changes.

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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.

A Research on Management System of Herbal Medicine in Common Use for Food and Medicine (식약공용 한약재의 관리 방안에 관한 연구)

  • Kweon, Kee-Tae
    • The Korea Journal of Herbology
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    • v.27 no.2
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    • pp.25-29
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    • 2012
  • Objectives : This article reviews a solution preventing the illegal distribution of herbal medicine in common use for food and medicine and risks on public health by conducting safety management of food and medicine. Also, this article would like to contribute to improvement of public health treating diseases in compliance with accurate diagnosis and prescription of Oriental Medicine Doctor("OMD")'s. Methods : An approach in this research can be categorized into two : first, to examine the current administrative situation and problems of herbal medicine in common use for food and medicine based on policy documents of Ministry of Health and Welfare and Korea Food and Drug Adminstration("KFDA") and academic articles of the herbal medicine;second, to find reasonable administrative solutions to solve the problems. Solutions : A solution is to strengthen the management level of herbal medicine in common use for food and medicine by selecting 117 items as target items requiring concentrated management. In case herbal medicine is imported for food, KFDA strengthens the quality management level of herbal medicine by making use of inspection frequency at random, collecting and verifying herbal medicine on the market. However, KFDA decides to maintain current different quality specification system of food and medicine reflecting a civil complaint that quality specification of food and medicine should separately managed according to the purpose of use. Herbal medicine as medicine that is functioned as treating diseases and alleviating symptoms, unlike herbal medicine for food, can cure all kinds of diseases by recovering inner balance of human body, making use of other properties of herbal medicine. Medicine has its own properties. If a doctor uses properties of medicine appropriately, he cures diseases. If a doctor uses herbal medicine inappropriately. he may damage human body. Thus, whether side effects of medicine depend on a doctor who uses herbal medicine. Conclusions : All herbal medicine will be supplied into the market after strict safety control of manufacturers of herbal medicine according to the revised Pharmaceutical Affairs Act, beginning in April, 2012. Thus, people can take safer and more reliable herbal medicine through strengthening safety management of herbal medicine and improving quality and transparency in the distribution system. Herbal medicine should appropriately be prescribed by licensed OMD because herbal medicine is used to treat diseases and alleviate symptoms, unlike herbal medicine for food.

A Study on the Application Characteristics of Ultrasonically Irradiated Bio-Diesel Fuel in Common-mil Direct Injection Diesel Engine (커먼레일 디젤기관에 초음파 조사 바이오디젤유 적용 특성에 관한 연구)

  • Choi Dooseuk;Jung Youngchul;Im Seukyeon;Ryu Jeongin
    • Transactions of the Korean Society of Automotive Engineers
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    • v.14 no.1
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    • pp.109-114
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    • 2006
  • The reformed bio-diesel fuel irradiated by the ultrasonic wave is applied to the diesel engine of common rail in common use recently. This study has the object to examine the properties of engine performance and discharged materials. The bio-diesel fuel is mixed and used with the diesel fuel in common use at the ratio of $20\%\;or\; 100\%$. The ultrasonic energy is irradiated to the individually mixed fuel in order to reform the fuel. This fuel is applied to the engine in this experiment. And It is compared and analyzed from the experimental results with two cases irradiating the ultrasonic wave and no irradiating.

A Study on the Types and Strategies of Customizable Fashion Brands on Web Media (웹 미디어에 나타난 커스터마이저블 패션 브랜드의 유형 및 전략 연구)

  • Lee, Misuk;Chung, Kyunghee
    • Journal of Fashion Business
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    • v.21 no.1
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    • pp.134-147
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    • 2017
  • The purpose of this study is to analyze fashion brands' contents and characteristics of the participation platform of users, to assess the types and strategies of mass customization(MC). Most fashion brands sell one professional content: Shoes brands were the most common, followed by bags, unisex wear, and menswear. In consumer's design selection elements, changes in color and materials were the most common. For the personalization service elements, monogram service was the most common. The results of MC types analysis were as follows, Customized Standardization was the most common, followed by Tailored Customization, Pure Customization, and Segmented Standardization. For the types according to changes in products and expression methods, Cosmetic was the most common. And the classification according to modulation, Modularizers were the most common. For Creativity, brands in the making stage were the most common. For Flexibility, although brands different methods, high flexibility by modularizing design elements of products and accomplishing various design through participation. The Ease of use for various expression was generally high, parallel to Flexibility. For Durability, because consumers could receive end products only when they participated in the assembly stage in the on-line purchase, their continuous participation was not possible, so they participated only once. The typical types and strategy of MC were analyzed. The Customized Standardization type was the most common in shoes, bag, and womenswear brands. It was the Cosmetic type which could change colors and materials, the Modularizers, and had high Flexibility and Ease of use and low Durability.

Use of Complementary and Alternative Medicine and its Affecting Factors in Women with Breast Cancer (유방암 여성의 대체요법 이용과 영향요인)

  • Suh, Yeon Ok
    • Korean Journal of Adult Nursing
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    • v.19 no.3
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    • pp.447-458
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    • 2007
  • Purpose: This exploratory study was to identify the use of complementary and alternative medicine(CAM) in women with breast cancer and to analyze which factor influence CAM use. Methods: 114 patients with breast cancer were identified and approached. The instrument used to gather data were the common types, main reasons and effects as well as stress, mood states and fatigue. Results: 42.7% of all participants reported the use of CAM. The most common types of CAM used were Phellinus linteus, elm tree, and vitamin C. The main reasons for CAM use were to boost the immune system and to prevent recurrence. Prayer, massage, Shitake mushroom, and Ganoderma lucidum were, identified as being more effective than others. 93.6% of the respondents informed their physicians of their use of CAM. Logistic regression analysis determined that stress, mood states, and duration after diagnosis were factors significantly associated with CAM use. Conclusion: CAM use is increasing among patients with breast cancer. Health care professionals are in the main position to identify what treatments patients are using and implement CAM therapies that can be helpful to relieve patient symptoms related to treatment and psychological distress.

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