• Title/Summary/Keyword: Material Database

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Using Database of Calculus Problems in Teaching of University Level Mathematics

  • Saastamoinen, Kalle;Ketola, Jaakko
    • 제어로봇시스템학회:학술대회논문집
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    • 2005.06a
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    • pp.1851-1852
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    • 2005
  • We have created in our university material management environment, which uses database created by using LATEX-files, and LATEX2HTML translator and PHP language. In this paper we will define how these LATEX-files are transformed into our database. In this paper, we present work which we have done for providing the material used in the teaching of calculus to students at Lappeenranta University of Technology. This procedure can be divided into three separate steps: 1) creation of the LATEX-files, 2) implementation of these LATEX-files in 3) conversion of the base LATEX-files to the HTML-files. So far, we have stored hundreds of exercises with hints and solutions on our web server in addition to some theory that we felt is necessary for the students. In this paper we will also discuss the benefits and future of our functioning Web-environment [1].

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Material Qualification, Equivalency, and Acceptance Test for Aerospace Composite Materials (복합재료의 인증, 동등성 및 수락시험)

  • Lee Ho-Sung
    • Composites Research
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    • v.19 no.2
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    • pp.1-6
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    • 2006
  • The civilian and military agencies require the use of statistic-based allowable to design aerospace vehicles with composite materials. In order to comply this regulation, it is necessary to establish relatively large amount of database, which increases test costs and time. Recently NASA/FAA developed the new method which can satisfy the regulation with smaller test matrix through AGATE(Advanced General Aviation Transport Experiments) program. Especially the concept of material equivalency is very useful when the material has been certified in previous program, and it allows the engineer to use the database with the addition of small test matrix. This paper summarizes the material equivalency and acceptance test methodology so that composite material database can be shared and improve the credibility of the material quality. As a demonstration, the material design allowable of the high temperature carbon/epoxy composite developed domestically was determined with this methodology.

LIfe Cycle Assessment(LCA) for Calculation of the Carbon Emission Amount of Organic Farming Material -With Oyster-shell, Expanded Rice Hull, Bordeaux Mixture Liquid- (유기농자재의 탄소배출량 산정을 위한 전과정평가(LCA) -패화석, 팽연왕겨, 보르도액을 중심으로-)

  • Yoon, Sung-Yee;Yang, Dong-Wook
    • Korean Journal of Organic Agriculture
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    • v.20 no.4
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    • pp.475-490
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    • 2012
  • Since 1997, Korean Ministry of Knowledge Economy and Ministry of Environment have established data on some 400 basic raw and subsidiary materials and process like energy, petro-chemical, steel, cement, glass, paper, construction materials, transportation, recycling and disposal etc by initiating establishment of LCI database. Regarding agriculture, Rural Development Administration has conducted establishment of LCI database for major farm products like rice, barley, beans, cabbage and radish etc from 2009, and released that they would establish LCI database for 50 items until 2020 later on. The domestic LCI database for seeds, seedling, agrochemical, inorganic, fertilizer and organic fertilizer etc is only at initial stage of establishment, so overseas LCI databases are brought and being used. However, since the domestic and overseas natural environments differ, they fall behind in reliability. Therefore, this study has the purpose to select organic farming materials, survey the production process for various types of organic farming materials and establish LCI database for the effects of greenhouse gas emitted by each crop during the process. As for selecting methods, in this study organic farming materials were selected in the method of direct observation of material and bottom-up method a survey method with focus on the organic farming materials admitted into rice production. For the basic unit of carbon emission amount by the production of 1kg of organic farming material, the software PASS 4.1.1 developed by Korea Accreditation Board under Ministry of Knowledge Economy was used. The study had the goal to ultimately provide basic unit to calculate carbon emission amount in executing many institutions like goal management system and carbon performance display system etc in agricultural sector to be conducted later on. As a result, emission basic units per 1kg of production were calculated to be 0.04968kg-$CO_2$ for oystershells, 0.004692kg-$CO_2$ for expanded rice hull, and 1.029kg-$CO_2$ for bordeaux mixture liquid.

Development of Internet Web-based RADIANCE Rendering System : II. Establishment of the Building Material Database (인터넷 웹기반 RADIANCE 가시화 시스템의 개발 : II. 건축자재의 데이터베이스 구축)

  • Choi, An-Seop;Lee, Jung-Eun;Oh, Eun-Suk;Song, Kyoo-Dong
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.19 no.1
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    • pp.1-8
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    • 2005
  • Building can get absolutely different images by different building materials. In architectural design process, there are various kinds of simulation programs to prove visualized images. But since most of simulation programs are consist of data for building material informations produced at overseas, it is difficult to utilize them in domestic environment. In this paper, we collected data from domestic building materials and measured optical features which they have, and then suggested methods to arrange the database and made database from some of domestic building materials to develope Internet Web-based RADIANCE redering system.

Development for Eco-Design of Hydraulic Structures based on Web-based Information System (친환경 정비공법 선정 지원을 위한 웹기반 정보시스템 구축)

  • Cho, Young-Kweon;Kim, Kwan-Ho;Kim, Han-Joong;Choi, Soo-Myung
    • Journal of The Korean Society of Agricultural Engineers
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    • v.50 no.1
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    • pp.95-106
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    • 2008
  • Eco-friendly material and implementation methods have become important along with the existing standardized maintenance concept for the irrigation and flood control. However, the intrinsic function of the hydraulic structure is water supply and disaster prevention. Therefore, the material and work methods should be considered both eco-friendliness, durability and safety which are prerequisite elements to maintain the engineering function. In this study eco-friendly material and work methods would be classified into the vegetation based system, eco-friendly concrete system and stone-material system according to the characteristics of material. The quality standard for durability followed KS specification and related regulations. The quality standard for safety and eco-friendliness was set after literature review, and the database was developed using the standard. The structure applicable to onsite - the eco-friendly material and work method were classified based on the function and material of the hydraulic structure. Finally, database has been established for convenient management and selection of the proper material and work method. The eco-friendly material and work method could be searched easily for the convenience of the users, and the web-based data system has been developed for continuous registration of the material and work methods to be developed in the future.

Statistical Characteristics of Domestic Composite Material Prepregs (국산 복합재료 프리프레그 통계적 특성)

  • Kim, Jinwon;Lee, Hosung
    • Journal of Aerospace System Engineering
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    • v.10 no.1
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    • pp.103-110
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    • 2016
  • This study shows the statistical properties of the domestic composite material prepregs test result. During the last three years(2012.5~2015.6) the prepreg specimen tests have been performed by referring to NCAMP developed test procedure which was approved by FAA. The database of (1) Carbon Tape, (2) Glass Fabric, and (3) Carbon Fabric composite material prepregs' characteristics have been established for certified aircraft structures. This qualified materials can be used for aircraft structural design through proper material equivalency procedures.

The practical use with online database program of cosmetics' raw materials. (화장품원료 온라인 데이터베이스 구축과 활용)

  • Jeon Sang-hoon;Kim Ju-Duck
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.29 no.2 s.43
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    • pp.233-250
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    • 2003
  • We often use the KCID(Korean Cosmetic Ingredient Dictionary) and ICID(International Cosmetic Ingredient Dictionary) within cosmetics research and within their export and import. so far, we do not have a database of a cosmetics' raw materials. Because of this, we consume a lot of time to find the raw material data that is needed. This study constructs a cosmetics' raw material database and develops the program to retrieve it. We used a Linux machine as the equipment for this study and we used Apache web server, MySQL database server and PHP as the tools of this study. 11,817 kinds of raw materials data were registered as ICID, 866 kinds of raw materials data were registered as KCID and 28,008 kinds of raw materials data with registered trade name into the database. Also, The database was composed of the database of the association form. The database of the online form could ultimately reduce the task time as soon as it did its purpose. The product of this study can become a good basis of data to reconfigure. In the future, it can become a good database in relation with different databases.

Grope for a Summary Program about a Traditional Medical Database for Intellectual Property Protection in WIPO (지적재산권 보호를 위한 전통의학 DB 구축에 관한 고찰)

  • Choi Hwan-Soo;Lee Je-Hyun;Kim Yong-Jin
    • The Journal of Korean Medicine
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    • v.25 no.3
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    • pp.12-19
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    • 2004
  • Objectives : In the WIPO conference about the protection of intellectual property for traditional knowledge (TK) and genetic resources (GR), there was a demand concerning the necessity of recognizing the invention of TK and GR and the foundation of a related database. Methods : In the standard of the foundation of a database, the content and resource identification standards, the technological standards and the security and transmission standards were discussed. In a decision on intellectual property, it means the protection and recognition as a technology precedent of the materials of the database. Results : Massive material on traditional medical care technology in Korea has existed in many areas. However, it is hard to make a database because it is difficult to organize and find the data. In addition, a database demanded by WIPO is not only the material of images or texts of simple technology information, but also the use of patent decisions about traditional knowledge technology and the public sharing of information in related areas. A traditional medical care database would consist of the core of a subject and the related areas. The core part is the medical herb resource and Oriental clinical technology. Conclusions : These are necessary to detail the kind of medicines and prescriptions, their use, and their processing. In the related areas, it needs to detail PIAS and clinical data in regarding the industrialization. These DB have to protect the TK and the GR of Korea.

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Landsilde Analysis of Yongin Area Using Spatial Database (공간 데이터베이스를 이용한 1991년 용인지역 산사태 분석)

  • 이사로;민경덕
    • Economic and Environmental Geology
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    • v.33 no.4
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    • pp.321-332
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    • 2000
  • The purpose of this study is to analyze landslide that occurred in Yongin area in 1991 using spatial database. For this, landslide locations are detected from aerial photographs interpretation and field survey. The locations of landslide, topography, soil, forest and geology were constructed to spatial database using Geographic Information System (GIS). To establish occurrence factors of landslide, slope, aspect and curvature of topography were calculated from the topographic database. Texture, material, drainage and effective thickness of soil were extracted from the soil database, and type, age, diameter and density of wood were extracted from the forest database. Lithology was extracted from the geological database, and land use was classified from the TM satellite image. Landslide was analyzed using spatial correlation between the landslide and the landslide occurrence factors by bivariate probability methods. GIS was used to analyze vast data efficiently and statistical programs were used to maintain specialty and accuracy. The result can be used to prevention of hazard, land use planning and construction planning as basic data.

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