• Proceedings of the SAREK Conference
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• 2008.06a
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• pp.552-557
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• 2008

This paper introduces to schematic design for Korea Institute of Toxicology Second Campus at Jeong-eup and provides fundamental information and data in order to design this laboratory facility to meet the criteria of G.L.P(Good Laboratory Practice), AAALAC(Association for Assessment and Accreditation of Laboratory Animal Care) and so on. This paper especially focus on design criteria, HVAC(Heating Ventilating and Air Conditioning) equipment and systems, plumbing equipment and systems, maintenance of equipment and systems and energy saving system of this laboratory facility.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2002.05a
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• pp.785-791
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• 2002

본 연구에서는 자동차의 안락성에 큰 영향을 미치는 운전자세와 운전에 따른 피로도를 평가하는 방법에 대해 다루고자 한다. 이러한 피로도를 평가하기 위해서 EMG, ECG와 같은 생리신호를 이용한 정량적인 평가방법과 졸림감 주관적 피로도 등과 같은 정성적인 평가방법을 동시에 수행하였다. 본 실험은 실제 차량에서 동일탄 구간을(호남고속도로 대전-정읍)을 왕복 주행하면서 수행되었으며, 실험에 참여한 인원은 콩 6명이었다. 실험 결과 운전시간이 증가함에 따라 근육의 피로가 증가하는 것을 볼 수 있었으며, 동시에 졸림감 또한 증가하였다. 운전 자세에 따른 피로도의 평가 결과 졸림감이 중요한 요인으로 나났는데, 이는 안락한 운전자세 뿐만 아니라 안전한 운전을 위해서도 아주 중요한 요인이라 생각된다. 본 연구는 실제 차량을 통탄 피로도의 편가를 하는데 있어서 피로를 평가하는 방법에 대탄 가이드로써 그 역할이 중분하리라 생각이 되며. 무엇보다도 실제 차량에서 실험한 결과 샘플수가적기 때문에 객관적인 결과라고 말하기엔 어렵겠지만, 운전 자세에 따라서 유의한 자이를 보였다.

• Journal of the Korean Institute of Rural Architecture
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• v.16 no.4
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• pp.59-66
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• 2014

This paper deals with vibration of plates with concentrated mass on elastic foundation. The object of investigating natural frequencies of tapered thick plate on pasternak foundation by means of finite element method and providing kinetic design data for mat of building structures. Free vibration analysis that tapered thick plate in this paper. Finite element analysis of rectangular plate is done by use of rectangular finite element with 8-nodes. In order to analysis plate which is supported on pasternak foundation. The Winkler parameter is varied with 10, $10^2$, $10^3$ and the shear foundation parameter is 5, 10. This paper is analyzed varying thickness by taper ratio. The taper ratio is applied as 0.0, 0.25, 0.5, 0.75, 1.0. And the Concentrated Mass is applied as P1, Pc, P2 respectively.

• Journal of Radiation Industry
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• v.2 no.3
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• pp.149-154
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• 2008

The present study described an antimicrobial spray composition comprising nanosized silica-silver particles, in which nano-silver is bound to silica molecules and a water-soluble polymer, the nanosized silica-silver particles prepared by irradiating a solution comprising a silver salt, silicate and the water-soluble polymer with radiation rays. According to a surfactant addition, the compositions were not turbid and were colorless. Also samples (cotton fabrics and wallpaper) were treated with the compositions also did not cause any stains even after drying under sunshine and at $80^{\circ}C$. Our results suggested that the spray formulation product was of practical use to control indoor fungi.

• Monthly Duck's Village
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• s.213
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• pp.4-18
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• 2021

11월 26일 전북 정읍에서 시작된 고병원성조류인플루엔자가 해를 넘어 4개월째 진행 중에 있어 오리업계의 피해는 물론 피로감이 그 어느때보다 높아지고 있다. 3월 24일 현재 고병원성AI 발생 현황을 살펴보면 가금류 농장에서만 106건이 발생했으며 관상용에서 2건이 발생했다. 이로 인해 살처분된 가금류만 3천만수에 달한다. 이중 오리의 경우 육용오리가 96호에서 1,849천수, 종오리 23호 184천수가 살처분됐다. 지난해 12월과 금년 2월까지 폭발적으로 발생했던 AI는 3월들어 잦아들면서 종식에 대한 기대감이 높아지고 있는 가운데 21일 장흥과 23일 나주에서 추가로 발생함에 따라 방역당국은 물론 오리농가들에게 허탈감을 주고 있다. 이에 이번호에서는 그 동안은 AI발생현황과 방역대책 추진현황, 앞으로 재입식을 위한 준비사항 등을 살펴봤다.

• Monthly Duck's Village
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• s.212
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• pp.10-28
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• 2021

충남 천안시 풍세면을 지나는 봉강천 야생조류에서 H5형 항원이 10월 23일 검출됨에 따라 철새 정보 알리시스템 발령기준에 의거 조류인플루엔자 발생 주의단계가 발령됐다. 주의단계 발생 한달 후인 11월 26일 전북 정읍에서 3년 만에 육용오리 농장에서 고병원성조류 인플루엔자 발생했다. 이 때부터 시작된 고병원성조류인플루엔자는 2월 15일 현재까지 100여 농장에서 발생했으며 예방적 살처분을 포함해 473농가에서 2천800여만수의 가금류가 살처분됐다. 이중 오리는 육용오리 92농가 177만1천수, 종오리 22농가 18만수가 살처분조치가 취해졌다. 닭에 비해 상대적으로 피해가 적어 보이지만 실상 오리산업의 기반이 크게 위축될 정도의 피해를 가져다 줬다. 2020년도 9월말 가축통계를 기준으로 육용오리는 20%, 종오리는 24%에 해당하는 것이다. 특히 이번 고병원성조류인플루엔자는 산란계에 특히 큰 피해를 줌으로써 계란 수급에 비상이 걸렸으며 급기야 계란을 긴급 수입하는 사태에 이르렀다. 상황이 이렇다보니 방역당국도 살처분 범위를 조정하는 등 피해 최소화를 위해 나서고 있다.

• Monthly Duck's Village
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• s.210
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• pp.12-19
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• 2020

사육제한, 일명 휴지기제로 오리사육 자체를 포기하며 조류인플루엔자(AI)로부터 오리와 산업을 지켜온 오리업계가 결국 AI의 습격을 이겨내지 못했다. 11월 28일 전북 정읍소재 육용오리 농장에서 고병원성 AI(H5N8형)가 확진됐다. 이어 12월 1일 상주 산란계 농장에서, 12월 5일 전남 영암군 육용 오리 농장에서 고병원성 AI 확진이 났다. 전국 철새 도래지에서 채취한 야생조류 시료에 대한 중간검사 결과 H5·H7형 AI 항원이 다수 검출 되는 등 전국이 AI 공포에서 벗어날 수 없는 상황이다. AI는 현재 진행형일지, 어디에서 멈출지 아직 아무도 모른다. 확실한 것은 오리농가가 망연자실해서는 안 된다는 사실이다. 도끼를 갈아 바늘을 만든다는 '마부작침'의 자세로 꾸준히 노력해 AI로부터 벗어나기 위한 노력이 시작돼야 할 때다.

• Journal of Sericultural and Entomological Science
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• v.53 no.1
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• pp.19-28
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• 2015

Though mulberry fruit is known to a by-product that was produced from mulberry tree after harvesting leaves for silkworm rearing, as a yield and consumption of mulberry fruit was increased, it has been fixing to a new income crop. But, a stable production of mulberry was issued on damage by the weather disaster, so it is requires that agricultural disaster insurance import. So, in this study as a basic research for a importation of agricultural disaster insurance, the cultivation of mulberry for the production of mulberry fruits, the shape of tree, the number of a bearing fruit from each cultivar, the occurrence of mulberry fruit sclerotic disease, and a yield and the market price of mulberry fruits were investigated and that results obtained were as follows; The number of mulberry tree each 10a was abundant in Buan and Jeongeup region that cultivated a suitable cultivar on low cut shape, however, a large cultivated Gochang region was little. The number of a bearing fruit per 1m on the branch was highest in the variety of Cheongilppong at Gochang. Yield of mulberry fruits each 10a was Cheongilppong at Gochang, followed by Iksuppong at Sangju. Average sale price of the mulberry fruits was high in the order of Gwasang No. 2, Suwonppong, Iksuppong, and Cheongilppong.

• Korean Journal of Environmental Agriculture
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• v.24 no.2
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• pp.91-97
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• 2005

This study was conducted to evaluate the influence of pollutant loads on the water quality in the Dongjin River area from January 2003 to December 2004. The average value of BOD and T-N showed the highest peak in Yongho, Dukcheon watershed among Dongjin River. Concentrations of BOD, T-N and T-P in Jeongeup watershed were 2.29 mg $L^{-1}$, 4.40 mg $L^{-1}$ and 0.27 mg $L^{-1}$, respectively. Concentration of BOD in Chilbo was 1.19 mg $L^{-1}$ which would be in the grade I according to water quality criteria by Ministry of Environment. The BOD level in Wonpeung and Sinpeung watershed ranged from 4.06 to 7.35 mg $L^{-1}$. The T-N effluent loads of non-point pollutants were high in Wonpeung, Gobu, Yongho Dukcheon, Jeongeup and Sinpeung watershed in order. The major sources of BOD, T-N and T-P effluent loads were Livestock. The T-P effluent load of non-point pollutant was 68 kg $day^{-1}$ in Wonpeung, 58 kg $day^{-1}$ in Yongho Dukcheon and 45 kg $day^{-1}$ Jeongeup watershed. The delivered loads of BOD was high in Gobucheon, while both T-N and T-P were high in Yongho Dukcheon. The delivery ratio of BOD and T-N at dry season was below 100% in all watershed of Dongjin River. The delivery ratio of T-N at raining season was high in Yongho Dukcheon and Chilbo watershed

• Korean journal of applied entomology
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• v.45 no.3 s.144
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• pp.293-299
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• 2006

A survey was conducted to find out the major plant parasitic nematode in Chrysanthemum morifolium fields in Korea from May to June in 2005. A genus of Pratylenchus was determined as the most important plant parasitic nematode based on analysis of total 50 samples from 8 cities of chrysanthemum field. Pratylenchus showed 86% occurrence rate and average numbered 1,095 per 200cc soils and 1g root. Five Pratylenchus isolates, 'Muan', 'Masan', 'Tean', 'Gumi', 'Jeongup', were selected for the molecular identification of the species of Pratylenchus, and ITS and D3-28S ribosomal DNA were amplified by PCR. For the ITS, only 'Muan' isolate was differentiated by total 1 kb PCR amplification, which was 200 bp larger than all the other isolates. There was no size variation in amplified D3-28S rDNA and all isolate represented approximately 320 bp of PCR product. Sequence data of D3-28S rDNA were analysed by MegAlign program in DNASTAR software and phylogenetic tree was constructed. Sequence homology was 100% between 'Gumi' isolate and 'Tean' isolate and 'Jeongup' isolate was also close to these isolates by 99.7% sequence homology. 'Gumi', 'Tean' group and 'Jeongup' isolate were determined to be closely related to Pratylenchus vulnus by 96.7% and 96.3% similarity in respectively. D3 sequence of 'Masan' isolate was 100% identical to P. penetrans, and 'Muan' isolate showed 99.7% similarity to P. brachyurus. This result was congruent with the branch divergence pattern shown in phylogenetic tree.