• Title/Summary/Keyword: regional materials

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Study of Sulfur Dioxide Contents in Various Fresh Vegetables During the Drying Process (건조에 따른 채소류 중의 이산화황함량 분석)

  • Ha, Sung-Yong;Kim, Hyun-Jung;Woo, Sung-Min;Lee, Jun-Bae;Cho, Yu-Jin;Kim, Yang-Sun;Bahn, Kyeong-Nyeo;Park, Jong-Seok;Kim, Hee-Yun;Jang, Young-Mi;Kim, Mee-Hye
    • Journal of Food Hygiene and Safety
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    • v.25 no.4
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    • pp.303-309
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    • 2010
  • This study was planned to monitor the change in the content of sulfur dioxide during the drying process of fresh vegetables. The analysis of sulfur dioxide was conducted by the Optimized Monier-Williams Method based on the Korea Food Code. The samples were kinds of vegetables which consisted of naturally-originated sulfur compounds (green onion, onion, cabbage, garlic, radish leaves, radish). Fresh vegetables (n = 182) and dried vegetables (n = 41) purchased from different local areas were investigated for the content of sulfur dioxide. The fresh vegetables were dried at 50~$60^{\circ}C$ using hot-air dryer. The moisture contents of dried samples were adjusted to keep 10 percents. The contents of sulfur dioxide in self-dried vegetables were 104.6 mg/kg in green onion, 75.4 mg/kg in onion, 129.1 mg/kg in cabbage, 197.6 mg/kg in garlic, 23.0 mg/kg in radish leaves and 52.5 mg/kg in radish, respectively. The increase of sulfur dioxide content according to the moisture content reduction was different from the expected. It means that the contents of sulfur dioxide can be altered by other factors except moisture contents. This results can be utilized as materials for the safe management of sulfites of dried vegetables.

Case Study on Sustainable office space of the LEED Green Building in the United States - Focused on the Materials and Resources of Indoor Evaluation Factors - (미국 내 LEED 그린빌딩의 지속가능한 업무공간 사례 연구 - 실내 평가요소 중 재료 및 자원을 중심으로 -)

  • Ha, Sook-Nyung;Han, Young-Ho
    • Korean Institute of Interior Design Journal
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    • v.22 no.2
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    • pp.176-185
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    • 2013
  • (Background)In modern industrial society, the design industry failed to observe the law of nature, destructing it. Regardless its intention, the design industry destructed the environment so that it can't maintain the future life because of waste and disaster. For the purpose, it is important to adopt the technology to reuse the waste resource generated by building or minimize the damage to environment for the resource that can't be recycled. (Methods)On the assumption that the material and resource can be an alternative plan for the design that can make environment be sustained, the study analyzed materials and resources out of superior office space of USA, which were selected by LEED Green Building Rating System. (Results)The analysis result revealed that all cases reused main structural part of existing building and indoor and various materials were reused or recycled. Especially, the materials without or with low amount of VOCs and formaldehyde were used. In order to reduce construction waste, the finish of existing building was exposed as it was, 50% of reused materials were used or disassemblable materials were used. When regional materials are used, there is an advantage to reduce transportation cost and recycle the materials rapidly. Lastly, the environment-friendly certified by FSC was used in all cases. (Conclusion)After all, the material is one of the space design strategies sensitive to environment so it is important to select good material. Harmless, environment-friendly materials applied to sustainable office space contribute to the creation of healthy environment. In addition, the use of recycled materials and reused materials to minimize waste is also essential factor for creating sustainable space.

A Comparative Study on the Rules of Origin and Origin Implementation Procedure in KORCHINA FTA and Main Korea's Existing FTAs - Focused on KORUS·KOREU·KORASEAN FTA - (한·중 FTA와 기(旣)체결 주요 FTA의 원산지 규정과 절차 비교연구 - 미국·EU·ASEAN FTA 중심으로 -)

  • LIM, Mok-Sam;LIM, Sung-Chul
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.69
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    • pp.589-616
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    • 2016
  • The reviewing of an analysis of the Korea-China FTA due to guidance introduced for the new regulations or exceptional regulations compared to the KORUS, Korea-EU, Korea-ASEAN FTA. Commodity sectors in the Korea-China FTA and the KORUS, Korea-EU, Korea-ASEAN FTA(the majority in the country and trade criteria analysis result) compared and analyzed the results, rules of origin and the customs clearance procedures of origin, preferential tariff rate of origin and the origin preferential specific rules are somewhat difference, but customs and trade facilitation regulations are already quite consistent with the Korea customs system. Relatively important research results were as follows. First, the calculation of the regional value content in KORCHINA FTA is that I'm to use the deduction method can comprehensively reflect a regional value ratio, with respect to the materials acquired originating status as the FTA in the US and EU use the product non it's not to consider the value of the originating materials originating materials can be utilized for intermediate goods. Second, even if a non-treaty country in the middle with the exception of direct transport rules, and acknowledge the country of origin are under customs control, there are provisions for the period are temporarily stored in a non-treaty countries separately, that period goods imported into the non-treaty countries and up to three months from the day. If the situation of the occurrence of force majeure be greater than three months, but has so exceed six months. Third, the materials acquired originating status in the Korea-China FTA not to consider the value of non-originating materials used in its products as the KORUS FTA and Korea-EU FTA, that can be utilized originating materials for intermediate goods. It is expected that higher utilization of rules of origin. Meanwhile, Korea-China FTA has provisions to allow requests for preferential tariff applied on imports Customs declaration of intention to apply pre-condition for a preferential tariff applied to the importer. In other words, if the import customs tariff preference when applying post-intention not to advance is to be noted that any preferential treatment to prevent the later application.

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Spatial Characteristics in the Labor Process of the Footwear Industry in Busan Metropolitan Area (부산 신발산업 노동과정의 공간적 특성)

  • Lee, Chul-Woo;Ju, Mee-Soon
    • Journal of the Korean association of regional geographers
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    • v.7 no.2
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    • pp.55-70
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    • 2001
  • This research is to analyze spatial characteristics of labor process at the labor properties in footwear industries in Busan Metropolitan area. The production process of a footwear industry is mainly composed of the development and production of goods and design, the development of component parts and materials and the assembly of parts to be end products, and the marketing. Each process inclines to concentrate in a region having the needed labor; therefore, a manufacturing factory for each process attempts to be located at the different places. The critical core functions such as the development of products and design, the development and production of critical component parts and material, and the marketing are carried out by manufacturing companies with the trademark of the products. These functions intend to be located in the Sasang industrial complex in Busan city and Seoul metropolitan area. The function such as the development and production of major component parts and materials needs high skilled technicians and well trained laborer, and inclines to be located in traditional footwear industrial regions. The assembling process is carried out by skilled females and/or unskilled labors, and attempt to be accompanied with critical core functions or outsourcing. This process has been spatially concentrated in the traditional footwear industrial areas; but recently it extends to the developing countries. The development and production of materials and the production of component parts mainly depending on male labors incline to be located in the developed countries for critical core component parts and materials, and to be located in Busan for major components parts and materials. The production of standardized components parts and materials are carried out in the less developed countries.

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A Study on Functions and Organizations of the University Archives (대학기록보존소의 기능과 조직에 관한 연구)

  • 김상호
    • Journal of Korean Library and Information Science Society
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    • v.31 no.1
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    • pp.259-278
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    • 2000
  • Acquisition and preservation of historical materials, official records, and archives pertaining to certain subject or regional concern for research are the core mission of the university archives. General types of the organizations are archives room as a part of department; department unit of archives and records management (or special collections); archives and records office as a independent information center of University.

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Assesment of Renewable Energy materials and equipment (신재생 기기 재료)

  • Lee, Sang-Heon;Koo, Kyoung-Whan
    • Proceedings of the KIEE Conference
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    • 2011.07a
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    • pp.1442-1442
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    • 2011
  • Increase the cost of electricity generation compared to (30 million won / KW) can only be used in standalone or distributed, but in the same area of photovoltaic conversion efficiency is much higher than with a large Stirling engine development has economic value of the infinite. Commercialization 25KW level or above Stirling engine production or introduction is necessary solar power in the various application and effect analysis for further empirical studies or regional energy projects, demonstration of business expansion and conductor, Stirling engines.

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DigitalMicrograph Script Source Listing for a Geometric Phase Analysis

  • Kim, Kyou-Hyun
    • Applied Microscopy
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    • v.45 no.2
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    • pp.101-105
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    • 2015
  • Numerous digital image analysis techniques have been developed with regard to transmission electron microscopy (TEM) with the help of programming. DigitalMicrograph (DM, Gatan Inc., USA), which is installed on most TEMs as operational software, includes a script language to develop customized software for image analysis. Based on the DM script language, this work provides a script source listing for quantitative strain measurements based on a geometric phase analysis.

Effect of Initial (Reference) Welding Current for Adaptive Control and It's Optimization to Secure Proper Weld Properties in Resistance Spot Welding

  • Ashadudzzaman, Md.;Choi, Il-Dong;Kim, Jae-Won;Nam, Dae-Geun;Park, Yeong-Do
    • Journal of Welding and Joining
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    • v.33 no.6
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    • pp.13-20
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    • 2015
  • Many automotive companies are endeavoring to improve the quality of resistance spot welding by updating body-in-white (BIW) production line with adaptive control spot welding system to compensate the process disturbances such as gap, electrode wear, oxidized surfaces, poor fit up and adhesive etc. Most of the commercial adaptive weld controllers require proper "Initial Welding Schedule" or "Reference weld" to achieve compensation in welding parameters during real time welding. In this study, the compensation of a commercial adaptive weld controller had been observed and analyzed thoroughly for various process disturbances to find optimal initial welding schedule. It was observed that 90 percent of the expulsion current in constant current control as reference welding schedule conferred the maximum button diameter in adaptive control welding. Finally, effects of each disturbance in combined field disturbances system with adaptive control had also been confirmed with the design of experiment (DOE) by minitab(R)16 for combined disturbances situation and suitability of optimum initial weld current had also established with real body part validation test.

Removal of Arsenic(V) from Aqueous Solutions by Using Natural Minerals

  • Mohapatra Debasish;Mishra Debaraj;Chaudhury G. Roy;Das R.P.;Park, Kyung-Ho
    • Resources Recycling
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    • v.15 no.5 s.73
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    • pp.38-46
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    • 2006
  • The removal of arsenic(V) using four different natural minerals were evaluated. Parameters like contact time, pH, adsorbent dosages, and As(V) concentration were optimized. The kinetics of adsorption was observed to be fast and reached equilibrium within 2h. As(V) adsorption on studied minerals was dependent on pH and followed a pseudo-second-order reaction model. For kaolin, maximum adsorption was found at pH 5.0. Whereas, in case of other three minerals, a pH range of 6.0-7.0 was found to be the best for As(V) adsorption. The maximum adsorption capacity (Q) was calculated by fitting Langmuir equation to the adsorption isotherms obtained under a specified condition. From the slope of best fit, the Q values were calculated to be 2.07, 2.15, 1.95 and 0.86 mg As(V)/g of bauxite, wad, iron ore and kaolin, respectively. Desorption of As(V) from loaded materials was dependent on the type of leaching reagents used. Based on the results, it was found that among the studied natural minerals, wad was the best As(V) adsorbent.

Effects of Fe2O3 Additions on Sintering Behavior and Electrical Property of Ce0.8Gd0.2O1.9 Ceramics (Ce0.8Gd0.2O1.9 세라믹스의 소결거동과 전기적 특성에 미치는 Fe2O3의 첨가효과)

  • Choi, Kwang-Hoon;Lee, Joo-Sin;Choi, Yong-Gyu
    • Korean Journal of Materials Research
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    • v.17 no.10
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    • pp.526-531
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    • 2007
  • The sintering behavior and electrical property of $Ce_{0.8}Gd_{0.2}O_{1.9}$ ceramics were investigated with the iron oxide concentration ranging from 0 to 5 mol%. Both the sintered density and grain size were found to increase up to 2 mol% $Fe_2O_3$, and then to decrease with further additions. At a higher $Fe_2O_3$ content above 3 mol%, grain size decreased by a pinning effect induced by different shape grains. The electrical conductivity was also increased with increasing $Fe_2O_3$ content up to 2 mol%. Total conductivity of 2 mol% $Fe_2O_3-added$ specimen showed the maximum conductivity of $2{\times}10^{-2}{\Omega}{\cdot}cm^{-1}$ at $500^{\circ}C$. The addition of $Fe_2O_3$ was found to promote the sintering properties and electrical conductivities of $Gd_2O_3-dope\;CeO_2$.