• Bulletin of Food Technology
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• v.20 no.4
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• pp.37-49
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• 2007

중금속은 인류가 금속을 이용하기 시작하면서 위험인자로 대두되기 시작하여 산업화 과정과 함께 환경오염을 초래하였고 나아가 식품을 오염시키는 원인물질로 작용함으로써 인간의 건강을 위협하기에 이르렀다. 중금속은 체내에서 분해되기 어렵고 배출이 쉽지 않아 생물체에 축적되면 먹이 연쇄를 따라 농축되므로 먹이사슬의 최종소비자인 사람에게 식품의 중금속 오염은 심각한 문제다. 특히 수은, 납, 카드뮴은 식품 중에서 공통적으로 볼 수 있는 독성물질로 생체조직과 강한 결합을하여 생체 내에 축적되어 천천히 제거되는 유해물질이다. 본문에서는 국내.외의 연구결과를 토대로 식품의 중금속 오염현황, 위해성, 관리방안에 대해 살펴보고자 한다.

• Korean Journal of Soil Science and Fertilizer
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• v.40 no.4
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• pp.280-291
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• 2007

Much research has been conducted in the field of phytoremediation since the discovery of the range of plants known as hyperaccumulators. Research has focused simultaneously on elucidating the mechanism of metal(loid) accumulation and development of practical techniques to enhance accumulation efficiency. To date, it is generally understood that there are five specific mechanisms employed by hyperaccumulating plant species that are either not or under utilized by non-hyperaccumulators. These include 1) enhanced metal(loid)s uptake through the root cell, 2) enhanced translocation in plant tissue, 3) detoxification and sequestration, 4) enhanced metal availability in soil:root interface, and 5) active root foraging toward metal(loid) enriched soils. Among these mechanisms, understanding of the plant-root effect on metal(loid) dynamics and subsequent plant uptake is vital to overcome the inherit limitation of phytoremediation caused by low metal(loid) solubility in soils. Plant roots can influence the soil chemistry in the rhizosphere through changes in pH and exudation of organic compounds such as low-molecular-weight organic acids (LMWOAs) which consequently change metal(loid) solubility. The decrease in soil pH by plant release of $H^+$ results in increased metal solubility. Elevated levels of organic compounds in response to high metal soil concentrations by plant exudation may also increases metal concentration in soil solution through formation of organometallic complexes.

• Aerospace Industry
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• v.36
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• pp.42-45
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• 1996

• Monthly Newsletter
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• no.58
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• pp.1-4
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• 1992

체념씻고 자각일깨워 새기술 축적 전기마련 - 2천83억6천1백만엔 일, 93년어항예산요구

• Bulletin of Food Technology
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• v.13 no.4
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• pp.131-133
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• 2000

• The monthly packaging world
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• s.57
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• pp.152-155
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• 1998

• 월간산업보건
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• s.198
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• pp.44-48
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• 2004

수요자 요구에 따른 다양한 서비스 개발에 힘써온 협회가 보건관리대행 서비스를 충실히 수행하면서 축적된 자료와 정보를 공유하는 일환으로 보건관리대행 사례를 소개하고 한다.

• KOREAN POULTRY JOURNAL
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• v.14 s.149
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• pp.71-74
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• 1982

배합사료 공장의 기술 축적과 품질의 경쟁을 유도하기 위해 82. 3. 1부터 8개 품목을 제외한 사료의 성분 등록을 사료제조업자 임의로 등록할 수 있도록 자율화하였다.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.41 no.2
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• pp.95-102
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• 2004

In this paper, Experience Sensitive Cumulative Neural Network (ESCNN) is introduced, which can cumulate the same or similar experiences. As the same or similar training patterns are cumulated in the network, the system recognizes more important information in the training patterns. The functions of forgetting less important information and attending more important information resided in the training patterns are surveyed and implemented by simulations. The system behaves well under the noisy circumstances due to its forgetting and/or attending properties, even in 50 percents noisy environments. This paper also describes the creation of the generalized patterns for the input training patterns.

• Korean Journal of Agricultural and Forest Meteorology
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• v.25 no.4
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• pp.258-266
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• 2023

This study analyzed methodologies for estimating carbon stocks of perennial woody crops and the research cases in overseas countries. As a result, we found that Australia, Bulgaria, Canada, and Japan are using the stock-difference method, while Austria, Denmark, and Germany are estimating the change in the carbon stock based on the gain-loss method. In some overseas countries, the researches were conducted on estimating the carbon stock change using image data as tier 3 phase beyond the research developing country-specific factors as tier 2 phase. In South Korea, convergence studies as the third stage were conducted in forestry field, but advanced research in the agricultural field is at the beginning stage. Based on these results, we suggest directions for the following four future researches: 1) securing national-specific factors related to emissions and removals in the agricultural field through the development of allometric equation and carbon conversion factors for perennial woody crops to improve the completeness of emission and removals statistics, 2) implementing policy studies on the cultivation area calculation refinement with fruit tree-biomass-based maturity, 3) developing a more advanced estimation technique for perennial woody crops in the agricultural sector using allometric equation and remote sensing techniques based on the agricultural and forestry satellite scheduled to be launched in 2025, and to establish a matrix and monitoring system for perennial woody crop cultivation areas in the agricultural sector, Lastly, 4) estimating soil carbon stocks change, which is currently estimated by treating all agricultural areas as one, by sub-land classification to implement a dynamic carbon cycle model. This study suggests a detailed guideline and advanced methods of carbon stock change calculation for perennial woody crops, which supports 2050 Carbon Neutral Strategy of Ministry of Agriculture, Food, and Rural Affairs and activate related research in agricultural sector.