• Title/Summary/Keyword: material standardization

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Literature Review on Material Development and Performance Evaluation Method for EMP Shielding Concrete (EMP 차폐 콘크리트 개발 및 성능평가 방법에 관한 문헌 연구)

  • Lee, Woong-Jong;Lee, Hwan;Kim, Young-Jin
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.12
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    • pp.67-76
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    • 2020
  • The purpose of this study was to derive the directionality of technology development of high-power electromagnetic pulse (EMP) shielding concrete and standardization of a shielding performance evaluation method. Because the EMP shielding mechanism of concrete has not been identified clearly, and the verification method for EMP shielding performance has not been standardized, it is difficult to compare the research results between researchers. The development direction of EMP shielding concrete was derived from a consideration of the electromagnetic wave loss mechanism of metal. The standardization direction for verifying the EMP shielding performance of concrete was derived from a consideration of the electrical properties of concrete and the shielding performance evaluation methods of previous studies. As a result, the development of electrically conductive concrete is required, and test methods classified by the electromagnetic wave loss mechanism should be applied. For quality verification, the development of EMP shielding concrete will be feasible and its performance can be evaluated if a test method referencing the generalized shielding evaluation method (MIL-STD, etc.) is applied.

Review of Identification of Medicinal Products (IDMP) Standards for Standardization of Herbal Medicine Information (한약 정보 표준화를 위한 의약품 식별 표준 (IDMP) 분석 및 고찰)

  • Kim, Young-Sik;Kim, Anna;Lee, Seungho
    • The Korea Journal of Herbology
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    • v.37 no.5
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    • pp.37-51
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    • 2022
  • Objectives : The purpose of this study was to apply informations related to herbal medicines to IDMP (Identification of Medicinal Products), an ISO standards related to medicinal products substances, for systematic collection of data through the integration of informations on distribution, manufacturing, and management of herbal medicines. Methods : By analyzing ISO 11238 and ISO/TS 19844, elements that can be used in the information model of herbal medicine were derived from the identification of medicinal products information model on substances. The labeling specified in the safety and quality control regulations for herbal medicines was mapped to the IDMP information model, and ginseng was applied as an example. Results : Herbal medicine corresponded to substance in IDMP. Among the five types of substances specified by IDMP, herbal medicines were expressed as structurally diverse. Scientific name was used as an invariant property of herbal medicine, and the substance level included information about source material and modification, and specifically included information about the scientific name, medicinal part, fraction, and processing. In addition, the specified substance level had information on the constituents, characteristic attributes, manufacturing, and grade of the herbal medicine. Conclusions : It is necessary to establish a code system for identifying herbal medicines. In order to apply the IDMP standards, research on the development of standard terms is required to express the characteristics of herbal medicines. In addition, information for identification of herbal medicines is also required, and information from production to consumption should be systematically accumulated and managed for actual application.

Standardization of the Preparation Methods of Korean Foods (III) - For the focus on Pibimbab (Mixed Rice) - (한국음식의 조리법 표준화를 위한 연구(III) -비빔밥류-)

  • 계승희;문현경;염초애;송태희;이성희
    • Korean journal of food and cookery science
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    • v.11 no.5
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    • pp.557-564
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    • 1995
  • This study was attempted to standardize preparation methods of Korean foods; Pibimbab (mixed rice) and Kongnamul Pibimbab (sprout mixed rice with soybean). We followed cooking method by using cookbooks, food service operation recipes , materials distributed by commercial food restaurants from their own experimental kitchens, and home recipes. Before those recipes were standardized, we thoroughly analyzed and modified. The total yield and portions were determined together with weights and procedures. And we evaluated food made by standardized recipes for acceptability by taste panels from Sookmyung Women's University. It concluded that yield volume for Pibimbab and Kongnamul Pibimbab after cooking for 10 persons was 6.5 kg, optimum service temperature was 7$0^{\circ}C$, preparation time was 6 hours, service volumes by one person was 650 g. This presentation for above on food materials and material weights, preparation methodsas well as cautions and references are attached in this research paper.

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Study of Standard Design Fire Curve of Various Railcar (철도차량별 표준 설계화재곡선 연구)

  • Lee, Duck-Hee;Park, Won-Hee;Jung, Woo-Sung;Kim, Chi-Hun
    • Proceedings of the KSR Conference
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    • 2011.10a
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    • pp.1426-1431
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    • 2011
  • A study on the standardization of design fire HRR(heat release rate) curve was conducted for various railcar from the fire simulation or the fire tests. These standard curves are listed on the tunnel fire safety manual which will be used for the QRA(quantitative risk analysis) process of the long railway tunnels. The design fire curve is based with four simple factor representing the key of fire curve characteristics. Flashover time, maximum HRR and burn out time are the key factors of the design fire curve. Specially total heat release is decided by the burnable material amount in the car.

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A Study on U-Learning (U-Learning에 관한 연구)

  • Park, Chun-Myeong
    • 한국디지털정책학회:학술대회논문집
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    • 2005.06a
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    • pp.605-615
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    • 2005
  • This paper represent a method of U-Learning based on advanced e-Learning. Ubiquitous computing configuration and advanced Information technology. As we know well, the 21th century is called knowledge based informational society. Many scholar stress that the improved 21th century's educational paradigm be able to success based on advanced educational paradigm. Therefore, we discuss the material for e-Learning fields including with necessity, vision, law, quality authorization etc. Also, we discuss the relational technologies including with meta data, standardization, identification etc. Finally, we propose a method for constructing the U-Learning based on advanced e-Learning and Ubiquitous computing configuration.

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A Fundamental Study on the Contaminants Using in Place of the Soapy Water for Floor Slip Resistance Test (바닥의 미끄럼시험에 사용되는 비눗물 대체 물질에 관한 기초적 연구)

  • Kim, Dae-Kyu;Shin, Yun-Ho;Choi, Soo-Kyung
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2015.11a
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    • pp.156-157
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    • 2015
  • The safety concern of slipping on floors in South Korea has come to the fore as a social problem, but the occurrence of such accidents has not decreased. Slip and fall accidents have several causes, but they are especially common when there is soapy water on the floor during a shower or a bath. Despite this situation, it can be said that there is a lack of standards on surface contamination materials used in floor slip resistance testing. Therefore, in this study, we conducted a survey to identify the components and quantity of soapy water that actually results from a user taking a shower, and the standardization of contamination materials. Based on the results of this experiment, we provide a surface contamination material that can replace the soapy water used in floor slip resistance testing.

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A Study for Implementation of Density Measurement Equipment for Asphalt Pavement based on the electromagnetic capacitance

  • Park, Young-Ho;Kim, Gun-Kyun;Nor, Jeong-Keun;Ha, Jae-Kwon
    • International Journal of Contents
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    • v.6 no.4
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    • pp.39-42
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    • 2010
  • In this paper we developed density measurement equipment for Asphalt Pavement based on the electromagnetic capacitance. This kind of Non-Nuclear Density Gauges technology and products is used or studied in USA, Finland, Sweden as standardization of authorized method for pavement density measurement. Effective permitivity of pavement asphalt is characterized in electromagnetic capacitance by the asphalt material, mixed ratio, and harden grade of pavement asphalt. We can get a density value of asphalt by replacing value of electromagnetic capacitance with standard density value and characteristic transformation curve. We are conformed that measurement data according to temperature, humidity, and real field asphalt of our density measurement equipment can be a precise value.

Current Status, Future Trend and General Policies of Forestry in China

  • Cheng, Ming;Ahmed, Sheikh Ali;Chun, Su-Kyoung;Kim, Jong-In
    • Journal of the Korea Furniture Society
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    • v.17 no.3
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    • pp.1-16
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    • 2006
  • Based on data collected by the State Forestry Administration (SFA) and other databases, this paper describes the current status, future trend and general policies in China's forestry. Forestry sector plays an important role in GDP growth of China. As a result forestry industry value output is increasing day by day. There is huge gap between demand and supply of timber projected in 2010. As a result it is necessary to develop fast growing, high yield forest following some specific policies. The ultimate goals of forestry are to construct or improve industry infrastructure, overall upgrade of forest industry structure, income improvement of forest employees and peasants, polices renewal and technology improvement, acceleration of forest processing with high-tech.

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Research on the Factors of Design, Material and Sewing Methods for Production Pattern Development in Women's Clothing Industry (여성복(女性服)의 공업용(工業用) 패턴제작(製作)에 사용(使用)된 요인추출(要因抽出)을 위한 실태분석(實態分析))

  • Choi, Jin-Hee
    • Journal of Fashion Business
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    • v.6 no.5
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    • pp.96-111
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    • 2002
  • The aim of this study was to suggest appropriate factors for production pattern making of women's clothing. Sample pattern designers and production patterners of 13 women's brands were individually interviewed about pattern making process and factors necessary. The results were as follows: The factors to be considered in pattern making were categorized in three groups. 1. Factors to be considered to achieve the correct use of specific materials: elasticity, shrinkage, lining and interlining 2. Factors to be considered to satisfy the design specifications: silhouette, dart distribution, collar and sleeve, trimming 3. Factors to be considered for better sewing quality: skillfulness of the sewer, sewing methods and sewing equipment. 4. Suggestions were made for appropriate factors. A focus-group-interview in pattern design has been interviewed to verify the suggested factors. The factors were presented as a guide to develop the production pattern. 5. For better usage of the factors, standardization were suggested for making process with necessary factors for jacket, skirt.

Establishment of adsorption measurement technique in nano-scale range and its application to standardization of porous material (나노영역에서의 흡착측정기술 확립 및 기공표준화에의 응용)

  • 남현수;최병일;김종철;이상현
    • Proceedings of the Korea Crystallographic Association Conference
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    • 2002.11a
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    • pp.50-50
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    • 2002
  • 물리흡착은 기체와 표면간의 상호작용이 반데르발스 힘에 의한 흡착현상으로 평형상태에서 물리적인 조건 변화만으로 흡착과 탈착이 가능하다. 이러한 흡착측정 데이터는 흡착 시스템에 대한 다양한 정보를 제공해주게 된다. 기체와 표면간의 상호작용 포텐셜, 흡착된 물질의 물리적 상태, 흡착막의 두께, 흡착구조, 흡착량 등이 결정될 수 있다. 이러한 정보는 흡착 및 탈착 등온곡선의 분석을 통하여 사용된 흡착제의 비표면적 및 기공의 기하학적 구조에 대한 것도 유추할 수 있게 한다. 본 실험실에서는 흡착량을 직접 측정하는 체적식 흡착측정 방법, 흡착량을 간접적으로 측정하는 광 및 관련 흡착시스템 및 수정진동자를 이용한 박막에서의 흡착측정 방법들을 소개하며 기공표준화에 적용하고자 한다.

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