• 수산경영론집
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• 제50권4호
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• pp.11-28
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• 2019

In this study, the Inter-Korea Fisheries Cooperation Project was divided into four categories: North Korea's Fisheries Infrastructure Development Project, Fisheries Cooperation Project, Human Exchange Project, and North Korea Fisheries Investment Project. First, North Korea's fisheries infrastructure development projects include North Korea's fisheries resource research project, it's fisheries resource development project, and joint enforcement on illegal operation of Chinese ships. Second, fisheries cooperation projects include the operation of the North-South common fish area in the West Sea, the fishing project in North Korea's East sea, and the import of North Korean seafood. Third, human exchange projects include training of aquaculture technicians in North Korea, technology transfer and training of fishing vessels, and boarding of North Korea's fisherman in Korean fishing vessels. Fourth, North Korea's fisheries investment projects include aquaculture facilities and aquaculture feed support, aquatic product processing facilities and technology transfer, and fishery equipment support. However, as international sanctions are maintained in the international community to North Korea, Inter-Korea Fisheries cooperation, however, should be promoted according to the level of easing of international sanctions as international sanctions are maintained in the international community to North Korea. First, North Korea's fisheries resource research project, North Korea's fisheries resource creation project, joint enforcement on illegal operation of Chinese ships, and operation of the common fish area in the West Sea can be promoted if international sanctions are maintained at present, promote North Korea's fisheries resource research project. Second, boarding of North Korean's fisherman in Korean fishing vessels, conducting the fishing project in North Korea's East sea, and importing North Korean seafood can be aided if commercial transactions are possible with North Korea. Third, South Korea will support aquaculture facilities and aquatic feed, fisheries processing facilities and technology transfer, fishery equipment support, training of fisheries and aquaculture technicians, fishery fishing technology transfer, and training of fisherman when a comprehensive economic cooperation project is possible with North Korea.

• 한국실내디자인학회논문집
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• 제24권3호
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• pp.165-175
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• 2015

Korean medical welfare facilities for the elderly provide the conveniences to care geriatric illness such as dementia and stroke. The medical welfare facility categorizes elderly care facilities, nursing homes, and geriatrics hospitals based on the Korean welfare of the aged act. The government makes an effort to secure feed rate and finances of medical welfare facilities. However, the qualitative improvement of facilities is inadequate. The purpose of this study is to analyze the conditions and problems of existing facilities using an environmental evaluation and to discuss the improvement direction related to the daycare centers for the elderly. The method of this study is literature review and field survey. Firstly, we analyzed the previous studies to develop the tool, evaluating the environment of day care centers for the old. Secondly, the items of environmental evaluation are deduced. Thirdly, we select the facilities to conduct field survey and analyze the results of field survey. Lastly, We discussed the problems and improvement directions through the results. It is judged that this study is an useful as the basic guideline to strengthen the minimum legal standards of day care center for the elderly due to the suggestion of insufficient environmental evaluation items.

• 정보통신설비학회논문지
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• 제5권1호
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• pp.43-59
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• 2006

A compact and broadband $4\times1$ array antenna was developed for 3G smart antenna system testbed. The $4\times1$ uniform linear away antenna was designed to operate at 1.885 to 2.2GHz with a total bandwidth of 315MHz. The array elements were based on the novel broadband L-probe fed inverted hybrid E-H (LIEH) shaped microstrip patch, which offers 22% size reduction to the conventional rectangular microstrip patch antenna. For steering the antenna beam, a commercial variable attenuator (KAT1D04SA002), a variable phase shifter (KPH350SC00) with four units each, and the corporate 4-ways Wilkinson power divider which was fabricated in-house were integrated to form the beamforming feed network. The developed antenna has an impedance bandwidth of 17.32% $(VSWR\leq1.5)$, 21.78% $(VSWR\leq2)$ with respect to center frequency 2.02GHz and with an achievable gain of 11.9dBi. The design antenna offer a broadband, compact and mobile solution for a 3G smart antenna testbed to fully characterized the IMT-2000 radio specifications and system performances.

• 정보통신설비학회논문지
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• 제7권1호
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• pp.41-58
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• 2007

A compact and broadband $4{\times}1$ array antenna was developed for 3G smart antenna system testbed. The $4{\times}1$ uniform linear array antenna was designed to operate at 1.885 to 2.2GHz with a total bandwidth of 315MHz. The array elements were based on the novel broadband L-probe fed inverted hybrid E-H (LIEH) shaped microstrip patch, which offers 22% size reduction to the conventional rectangular microstrip patch antenna. For steering the antenna beam, a commercial variable attenuator (KAT1D04SA002), a variable phase shifter (KPH350SC00) with four units each, and the corporate 4-ways Wilkinson power divider which was fabricated in-house were integrated to form the beamforming feed network. The developed antenna has an impedance bandwidth of 17.32% ($VSWR{\leq}1.5$), 21.78% ($VSWR{\leq}2$) with respect to center frequency 2.02GHz and with an achievable gain of 11.9dBi. The design antenna offer a broadband, compact and mobile solution for a 3G smart antenna testbed to fully characterized the IMT-2000 radio specifications and system performances.

• 수산해양교육연구
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• 제25권5호
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• pp.1179-1191
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• 2013

Many sanitation control problems due to aging facilities and equipment were identified when applying an HACCP system to a flatfish (Paralichthys olivaceus) aquaculture farm. Specifically, the major problems included a lack of awareness about worker hygiene, lack of management of the use of fish medicines, and vulnerability to secondary contamination by cross-contamination owing to a failure to separate breeding tools used for healthy and unhealthy fish. Therefore, the management standards on the farm regarding the surrounding environment, facilities and equipment, breeding tools, feed and medication, and the hygiene of practitioners must be improved. The hygiene management standards were divided into different procedures such as the management of farm hygiene and environmental sanitation, facilities and equipment, fish hygiene, feed, medications, water, and the stocking and shipping of fish. For each procedure, we established the management standards, inspection period, inspection procedures, and how to deal with errors that occur, to enable hygiene management by a small number of managers. Additionally, an inspection system and record form to implement an HACCP system were developed to maintain systematic management. The management and inspection of all aspects of the farm were designed to be easily managed by the supervisor.

• 청정기술
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• 제22권3호
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• pp.181-189
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• 2016

본 연구는 음식물류폐기물 자원화시설의 최적화 이행지표를 적용하여 퇴비화시설과 사료화시설을 평가하고자 실시되었다. 2014년 현재 생활폐기물 중 음식물류폐기물은 약 27%이며, 재활용이 97.2%, 매립과 소각은 각각 0.9%와 1.9%로 미미하였다. 2014년 운영되는 음식물류폐기물 자원화시설은 총 105개소이며, 퇴비화와 사료화 시설이 각각 52개소(49.5%)와 24개소(22.9%)로 많았고, 하수병합 및 기타 시설이 29개소로 나타났다. 최적화 이행지표 평가 결과 기술성에서 사료화시설이 30점 만점 중 18.3점으로 퇴비화시설의 17.7점 보다 다소 높았으며, 환경성에서도 사료화 시설이 30점 만점 중 18.3점으로 퇴비화시설의 16.7점 보다 다소 높았다. 그러나 경제성 평가에서는 사료화시설이 40점 만점 중 25.0점을 차지하여 퇴비화시설(18.3점) 보다 크게 높은 것으로 나타났다. 기술성, 경제성, 환경성을 종합 평가한 결과에서도 100점 만점 중 사료화시설은 61.5점으로 퇴비화시설의 52.7점을 앞서는 것으로 나타났다. 이는 향후 각 지자체에서 음식물류폐기물 자원화시설 선정시 유용한 자료로 활용될 수 있을 것으로 기대된다.

• 한국가금학회지
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• 제28권3호
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• pp.245-257
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• 2001

가축사육이 집단화되면서 가축배설물의 축적은 집중화 현상을 초래하게 되었고 또 계속적인 분뇨 분비물의 유출은 환경공해의 요인이 되고 있으며 이는 공공의 걱정거리로 대두되고 있다. 가축분뇨 중에서 질소와 인이 환경공해요인이 되는 가장 중요한 영양소이지만 가축이나 축산시설물에서 발생되는 냄새 역시 공해의 요인이 되고 있다. 급여되는 사료의 영양소효율을 높이는 길이 환경공해를 감소시키는 방법이다. 가장 많은 실험은 닭과 돼지를 대상으로 하여 이루어졌다. 사료첨가제의 이용, 사양방법의 수정 등으로 사료중의 영양소 이용성을 높임으로서 질소와 인의 배출감소는 물론 냄새와 분의 건물함량을 줄일 수 있었다. 1) 합성아미노산 제제를 사료 중에 첨가하고 단백질 수준을 감소시켰을 때 육계의 경우 10∼27%의 질소배출을 기대할 수 있었으며 산란계의 경우 18∼35%, 돼지의 경우 62%, 돼지에서 생성되는 냄새를 9∼43%까지 감소시키는 효과를 기대 할 수 있었다. 2) 사료 중에 효소제를 첨가하였을 때 육계 분의 건물함량을 12∼15% 감소시킬 수 있었다. 3) phytase를 첨가할 경우 분으로 배설되는 인의 함량은 양계의 경우 25∼35%,돼지의 경우 9∼43%까지 감소가 가능했다. 4) 성장촉진제를 이용할 경우 돼지에서 질소의 배설 양을 5∼30% 감소시킬 수 있었으며 냄새는 53∼55%까지 감소가 가능했다. 5) 사료배합을 요구량에 가깝게 하여 급여하였을 때 양계나 양돈의 경우 질소와 인은 각각 10∼15% 감소를 기대 할 수 있었으며 돼지의 냄새는 28∼79%까지 감소가 가능했다. 6) 기별 사양을 철저히 실시함으로서 양계와 양돈의 경우 질소는 10∼33%, 인산은 10∼13%, 그리고 성장 비육돈의 경우 49∼79% 감소를 기대 할 수 있다. 7) 닭이나 돼지의 사료를 배합시 소화율이 높은 곡류를 이용하면 질소와 인의 배설을 5% 감소시킬 수 있다.

• Weed & Turfgrass Science
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• 제3권3호
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• pp.221-224
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• 2014

Genetically modified (GM) crops are not permitted to be cultivated in Korea, but can only be imported as food or feed purposes. The import of GM crops has sharply increased in recent years, thus raising concerns with regard to the unintentional escape of these crops during transport and manufacturing as well as the subsequent contamination of local, non-GM plants. Hence, monitoring of GM crops was studied in or outside of grain receiving ports as well as from feed-processing plants in Korea during July 2008. We observed spilled maize grains and established plants primarily in storage facilities that are exposed around the harbors and near transportation routes of the feed-processing areas. Based on the PCR analyses, a total of 17 GM maize plants and 11 seeds were found among the samples. In most cases, the established maize plants found in this study were at the vegetative stage and thus failed to reach the reproductive stage. This study concludes that, in order to prevent a genetic admixture in the local environment for GM crops or seeds, frequent monitoring work and proper action should be taken.

• 한국막학회:학술대회논문집
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• 한국막학회 1995년도 추계 총회 및 학술발표회
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• pp.80-93
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• 1995

Membrane Technology, which has been in use for over twenty five years, has established itself as one of the principle separation methods. With improved technology, Reverse Osmosis ("RO") has been applied to large volume water treatment facilities. UF and MF Membrane Technology has, up until recently, been applied to small scale water treatment facilities. The fouling of membrane has restricted the growth of Membrane Technology in Water Treatment. Membrane fouling compound found in water causes the loss of flux across the membrane by absorbing to membrane and plugging their pores. Various methods have been used in the reduction and prevention of membrane fouling. For RO, a conventional pre-treatment system removes the pollutants, preventing the function decline of RO membrane by keeping SDI < 4 as the standard condition of feed water. UF and MF Membrane Technology that must have pre-treatment function within itself, are required to keep its ability not to be influenced by fouling.y fouling.

• 한국축산시설환경학회지
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• 제5권3호
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• pp.203-216
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• 1999

Recent public concern about air pollution caused by swine production facilities has forced to develop the methods to reduce and control the swine odors. Swine odors were affected the life of pig farm neighborhoods, swine productivity, pig health, diseases, and human right, safety, sanity as negatively. The first approaches of control of swine odors are the change or improve of the classical management systems, which are manure treatment method, manure storage facility, phase feeding, sex-divided feeding, feeder type, liquid-slurry feeding, environment control of swine building and dust control of indoor swine facility. The methods to control odor emission from manure have to include the diet modification as nutritional basis. In recent, research emphasis has focused on manipulating the swine diet to increase the nutrient utilization of the diet to reduce excretion products and reduction of odors. There are lots of feed additives and pit additives introduced as practical basis for reducing odor emissions. The ozone treatment method is candidate as the good system for reducing swine odor. But this system is still too expensive to practice in present.