• Title/Summary/Keyword: Reformation

Search Result 489, Processing Time 0.03 seconds

Plasma Electrolytic Oxidation Treatment of Magnesium Alloys (마그네슘 합금의 플라즈마전해산화 처리 기술)

  • Mun, Seong-Mo;Kim, Ye-Jin
    • Proceedings of the Korean Institute of Surface Engineering Conference
    • /
    • 2016.11a
    • /
    • pp.123.2-123.2
    • /
    • 2016
  • Mg alloys have been developed for automobile and mobile equipments because of their low density of $1.7g/cm^3$. One of the main problems of Mg alloys is their poor corrosion resistance which has limited their wide applications. Plasma electrolytic oxidation (PEO) method is one of the promising surface treatment methods for Mg alloys. In this presentation, experimental data about the effects of solution composition and form of current are presented and discussed in view of dielectric breakdown and reformation of PEO films The role of various anions of phosphate, silicate, fluoride, carbonate and hydroxide ions is discussed in view of film breakdown and reformation of PEO films.

  • PDF

Water Quality Improvement in the River through Reformation of Irrigation Water Supply Systems (관개용수 공급체계 변경을 통한 하천의 수질개선)

  • Lee, Kwang-Ya;Kim, Hae-Do;Lee, Jong-Nam;Park, Jong-Hoon
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2006.05a
    • /
    • pp.540-545
    • /
    • 2006
  • The objective of the study is to assess the water quality improvement resulted from the rearrangement of the irrigation water supply systems at Mankyeong River and Ansung Chun basin. There is a mixed type of watershed composed of urban and rural areas in the region. The water intake facilities for agricultural use such as reservoir, weir and pumping station are generally located at upstream river where the water quality maintains relatively clean. However, this study focuses on moving the water intake to downstream and rearranging the irrigation water supply system, then investigating how effective they are for water quality improvement in the river. When the water intake is moved downstream, the stream flow is increased as much as the amount of irrigation water that is to be taken upstream. The augmented flow which is frequently referred to as environmental flow can function as dilution water for improving the quality of polluted water that is originated from the wastewater in tributaries.

  • PDF

A study on Strategy of Korea-U.S.A. FTA Negotiation in Cosmetics Industry and Reformation of Cosmetics Law (한국 화장품산업의 한.미 FTA 통상협상전략과 관련 법규 개선방향에 관한 연구)

  • Park, Sang-Gi
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
    • /
    • v.34
    • /
    • pp.189-223
    • /
    • 2007
  • In Korea-U.S.A. FTA Negotiation, U.S.A. request to eliminate barriers of tariffs and non-tariff in trade of cosmetics. Korea applies tariffs of 8% on most cosmetics and personal care products. There are some non-tariffs barriers in cosmetics trade between Korea and U.S.A., for example, transparency on restriction and regulatory, cosmeceuticals, import clearance review, quality control testing, ingredient labelling. Tariffs of 8% on most cosmetics should be eliminated, a proviso of complementary measures on sanitation of Korean people about imported cosmetics. This is a meaning of reformation of prior management(tariffs) by strong ex post management in cosmetics trade. It is important that Korea should construct system of ex post management, for instance, construction of data base on manufacturer, importer, bland name of cosmetics and all ingredients of cosmetics. This is concerned with labelling of cosmetics and cosmeceutical and publication of Korean edition of INCI(International Nomenclature of Cosmetic Ingredient).

  • PDF

Recent Developments and Policy Directions in Fisheries Finance in Korea (IMF 이후 한국수산금융의 현황과 정책방향)

  • 김경호
    • The Journal of Fisheries Business Administration
    • /
    • v.32 no.2
    • /
    • pp.1-22
    • /
    • 2001
  • In recent years Korea fisheries have been much more influenced than ever before by domestic and foreign environmental changes such as market liberalization, sustainability, efficiency and effectiveness of domestic fisheries, fisher's welfare etc. Under the wide range of environmental changes, government is carrying out various fisheries policies. However, it seems insufficient to accomplish policy goals under the existing policy instruments. The main focus of the paper is to investigate structural changes and policy directions of fisheries finance in Korea after asian economic crisis. The results of the study are as follows; Fisheries sector in whole economy has been lowering in its proportion. To survive in emerging global competition, fisheries sector is needed structural reformation. In particular the strategy that increases operative efficiency and effectiveness on government financial policy in fisheries sector is much expected. Also, it is necessary to minimize costs, to reform institution and management for increasing efficiency and effectiveness.

  • PDF

The improvement of the efficiency of power plant by the reformation of steam line in the return system (화력발전소에서 응축수 회수계통의 증기배관 개선에 의한 발전시스템의 효율 향상)

  • Kwon, Y.S.;Suh, J.S.
    • Proceedings of the KSME Conference
    • /
    • 2001.11b
    • /
    • pp.867-871
    • /
    • 2001
  • The main reason for reviewing the condensate water return system in the auxiliary steam system is to obtain the thermal high efficiency of the power plant and thus save the fossil energy in power plant. This study intends to analyze the thermal efficiency of the power plant and predict the increasing in the generator output by the return system reformation of auxiliary steam line in the thermal power plant.

  • PDF

List and Classification of Bumwoo KIM Chi Young's Contributions on Mathematics Education (범우 김치영선생의 수학교육에 관한 업적의 목록과 그 분류)

  • Lee, Kang Sup
    • Journal for History of Mathematics
    • /
    • v.29 no.5
    • /
    • pp.279-294
    • /
    • 2016
  • In this study, Bumwoo KIM Chi Young's (1916.12.24~1995.4.22) papers, essays and books on mathematics education were collected and classified. Bumwoo KIM Chi Young was the most important person on the New Math Movement (Modernization for Mathematics Education), and in 1973, he led the Third Reformation of National School Mathematics Curriculum in Korea. Bumwoo emphasized mathematical structure in mathematics education, and he was a strong advocate of importance of set theory, creativity and the type of spiral learning.

Comparison between the Korean and Japanese Costume Systems since Port Opening Treaties in Nineteenth Century (19세기 개항이후 한.일 복식제도 비교)

  • 이경미;이순원
    • Journal of the Korean Society of Costume
    • /
    • v.50 no.8
    • /
    • pp.149-163
    • /
    • 2000
  • The purpose of this study is to research the Korean and Japanese costume systems and to compare both of them on the process of adopting the western-originated costumes. The consequences of this study are as follows. Chosen and Japan started simplifying the traditional clothings, Introducing the western clothings and executed the ordinance prohibitory topknots through reforming costume systems since Port Opening Treaties in 19th centra. Japan performed the reformation of costume system effectively through the grand campaign of social reforming enlightment by Meiji Government. Meanwhile in Korea, there were a continual repetition of adoption and rejection in the reformation of costume systems because of strong cultural self-esteem and competition of foreign Empires. However, western-originated cultural perspectives brought the strong self-devaluated view on their own cultures to both countries. And that's the first cause of substitution of western clothings for ordinary ones in both nations.

  • PDF

A View of Costume in the Early Practical Science School in Chosun Dynasty (조선시대 초기 실학파의 복식관 -한백겸, 유형원, 이익을 중심으로 -)

  • 정혜경
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.20 no.5
    • /
    • pp.860-869
    • /
    • 1996
  • This study is a research for an idea of costume containing clothing system in the early Practical Science School. The result are described as follows 1. Bak-Kyem, Han got a critical thought and attitude to seek for practical and rational as pect. Because that he studied an original text and wanted to find a basic meaning. And the result, he made a Pang-Ryeong Symeui. 2. Hwyeng-won, Rue contended that we had to model after chinese costume system to seek for a correct clothing system to harmonize with our culture and regulation. And he sought for the original courtesy because that his basic idea of reformation in the clothing system was an ancient system. But when there was a remedy, he suggested a new system. 3. Ik, lee considered a clothing system with a critical and investigated attitude. In the clothing system, he wanted to keep an original courtesy. But he asserted a constant reformation in evil tradition. He pursued a rationality not to be tied a formality, and he had also a flexibility to recognize real customs.

  • PDF