• 제목/요약/키워드: Production $^{131}I$

검색결과 52건 처리시간 0.023초

Effect of Dietary Supplementation of Procyanidin on Growth Performance and Immune Response in Pigs

  • Park, J.C.;Lee, S.H.;Hong, J.K.;Cho, J.H.;Kim, I.H.;Park, S.K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제27권1호
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    • pp.131-139
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    • 2014
  • This study was performed to determine the effect of dietary supplementation of procyanidin on growth performance, blood characteristics, and immune function in growing pigs. In experiment 1 (Exp. 1), thirty-two crossbred pigs with an initial BW of $19.2{\pm}0.3$ kg were allocated into 4 treatments for an 8-wk experiment: i) CON (basal diet), ii) MOS 0.1 (basal diet+0.1% mannanoligosaccharide), iii) Pro-1 (basal diet+0.01% procyanidin), and iv) Pro-2 (basal diet+0.02% procyanidin). Pigs fed Pro-1 and Pro-2 diets had greater (p<0.05) gain:feed ratio compared with those fed CON or MOS 0.1 diets. Serum creatinine concentration was less (p<0.05) in Pro-2 treatment than those in CON, MOS 0.1 and Pro-1 treatments. In Exp. 2, twelve pigs (BW $13.4{\pm}1.3$ kg) received basal diet with i) 0 (CON), ii) 0.02% (Pro-0.02%), and iii) 0.04% procyanidin (Pro-0.04%) for 4 wk. Concentration of platelets was lower (p<0.05) in the Pro-0.04% group compared to CON at 24 h after lipopolysaccharide (LPS) challenge. In addition, secretion of cytokines from cultured peripheral blood mononuclear cells (PBMC) in the presence or absence of procyanidin was examined. The levels of interleukin (IL)-$1{\beta}$, IL-6 and tumor necrosis factor (TNF)-${\alpha}$ were lower (p<0.05) in Pro (LPS-stimulated PBMCs+procyanidin) than those in CON (LPS-stimulated PBMCs+PBS) at 4 h after LPS challenge. These data suggest that dietary addition of procyanidin improves feed efficiency and anti-inflammatory cytokines of pigs.

Hybrid GA를 이용한 최적의 블록단위 설비배치에 관한 연구 (A study on optimal of block facility layout using Hybrid GA)

  • 이용욱;석상문;이철영
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2000년도 추계학술대회논문집
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    • pp.131-142
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    • 2000
  • Facility layout is the early stage of system design that requires a mid-term or long-term plan. Since improper facility layout might incur substantial logistics cost including material handling and re-installment costs, due consideration must be given to decisions on facility layout. Facility layout is concerned with low to arrange equipment necessary for production in a given space. Its objective is to minimize the sum of all the products of each equipment's amount of flow multiplied by distance. Facility layout also is related to the issue of NP-complete, i.e., calculated amounts exponentially increase with the increase of the number of equipment. This study discusses Hybrid GA developed, as an algorithm for facility layout, to solve the above-mentioned problems. The algorithm, which is designed to efficiently place equipment, automatically produces a horizontal passageway by the block, if a designer provides the width and length of the space to be handled. In addition, this study demonstrates the validity of the Algorithm by comparing with existing algorithms that have been developed. We present a Hybrid GA approach to the facility layout problem that improves on existing work in terms of solution quality and method. Experimental results show that the proposed algorithm is able to produce better solution quality and more practical layouts than the ones obtained by applying existing algorithms.

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스핀드럼 시밍부의 기계적 프레스 접합강도 향상에 관한 실험적 연구 (An Experimental study on Improvement of Mechanical Press-Joining Strength of the Spin Drum Seaming Division in Washing Machine)

  • 김의수;김병민
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2006년도 춘계학술대회 논문집
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    • pp.127-131
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    • 2006
  • There are being a lot of studies for achievement of high speed Dehydration, high-strength and Lightweight of washing machine in the latest washing machine business. It is essential that Press-joining Strength of Spin Drum Seaming division is improved .to attain that target. Generally, we are using Mechanical press-joining by Seaming and T.I.G (Tungsten Inert Gas) welding among part joint method. Mechanical press-joining method that is mainly using for Stainless Steel (STS430) Drum have lots of merit that consumption of energy is low more than welding and production costs cut down and generation of the corrosion is solved by removing weld zone defect and materials having different properties are enable to join without special equipment. But, it is difficult to realize joint strength required at high speed operation because joint strength of mechanical press-joining method is low remarkably in comparison with welding. Also, there are a lot of analysis difficulties and very limited research is under way due to the dynamic factor such as multistage plastic working, elastic recovery, residual stress etc. The results of this study show optimal joining condition for mechanical press-joining by performing lots of tensile joining strength test with various specimen under multi-change of important design factor such as seaming width, bead area and bead depth etc.

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원자력 비상시 가축의 사료로 이용을 위한 사료내 방사성 핵종농도 결정에 대한 연구 (A Study on the Determination of Radionuclide Concentrations in Animal Feedstuffs for Use Following a Nuclear Emergency)

  • 황원태;김은한;서경석;최영길;한문희
    • Journal of Radiation Protection and Research
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    • 제26권2호
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    • pp.87-91
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    • 2001
  • 비용-편익 분석법에 근거한 동물성 식품에 대한 최적 유도개입준위를 통해 가축사료로 이용을 위한 사료내 방사성 핵종농도를 도출하였다. 가축사료로 이용을 위한 사료내 방사성물질의 농도는 식품, 핵종, 가축으로의 공급기간 (오염사료의 공급 시작시점부터 제품 생산까지 기간) 등에 따라 뚜렷이 다르게 나타났다. 장반감기 핵종 ($^{l37}Cs,\;^{90}Sr$)의 경우 사료 공급기간의 증가에 따라 가축의 체내 방사성물질의 축적으로 보다 낮은 농도를 갖는 사료를 공급하여야 하나 단반감기 핵종 ($^{131}I$)의 경우에는 방사능붕괴 등으로 보다 놀은 농도를 갖는 사료 공급이 가능하였다. 가축으로 공급을 위한 사료내 $^{137}Cs$ 농도는 $^{90}Sr$ 농도보다 낮았는데, 이는 주로 $^{137}Cs$의 보다 높은 사료-식품 전이계수에 기인한다.

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CO-I 유전자 기반 국내 유통 Corbicula 속 패류의 종 동정 (A Mitochondiral Cytochrome Oxidase I gene based identification of Corbicula ssp. commercially available in South Korea)

  • 박소영;강세원;황희주;정종민;송대권;박홍석;한연수;이준상;강정하;이용석
    • 한국패류학회지
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    • 제32권2호
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    • pp.127-131
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    • 2016
  • CO-I서열의 생물정보학적 분석 결과 국내에서 유통되는 재첩류의 연체부는 일본재첩 (C. japonica) 과 재첩 (C. fluminea) 으로 동정되어 두 종이 혼재하여 유통되는 것으로 확인되었다. 일본재첩 (C. japonica) 과 재첩 (C. fluminea) 은 국내에서 서식하고 있으나, 섬진강 유역의 재첩 (C. fluminea) 은 개체수가 감소하여 거의 생산되지 않고 있으므로, 본 연구를 통해 확인된 재첩 (C. fluminea) 은 중국 수입산으로 예상된다.

영화문화정책 연구: 프랑스와 한국의 영화정책 비교를 통해 (Une étude sur la politique de la culture cinématographique: Une analyse comparée de la politique cinématographique entre Corée du Sud et France)

  • 전병원
    • 트랜스-
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    • 제2권
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    • pp.131-160
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    • 2017
  • Si on examine le bilan 2014 du CNC en France et celui du KOFIC en Corée du Sud, on peut s'apercevoir que l'éhelle industrielle cinématographique des deux pays est très similaire. On peut découvrir quelques chiffres à propos des résultats de l'industrie cinématographique dans ce bilan comme le nombre d'entrées, la recette des guichets, le nombre de production qui sont très similaires. La part de marché pour les films nationaux des deux pays augmente fortement en 2014. Mais ces chiffres de marché pour les films nationals sont les résultats obtenus dans les situations trés différentes des deux pays. En ce cas, la différence entre les deux pays vient d'où? Il en résulte de la politique de la culture cinématographique pour 'la sensibilisation du film comme une culture' des deux pays. Ceci est la partie la plus importante de la différence, qui est également visible dans la politique de la culture de France et de Corée du Sud. Depuis quelques années, le cinéma coréen se développe considérablement, à l'intérieur comme à l'extérieur du pays. Cependant, ce succès masque un certain déséquilibre de l'industrie cinématographique. On se rend compte également de la concentration du pouvoir par la monopolisation des grandes entreprises qui fonctionnent selon le principe de l'intégration verticale, et qui contrôlent toute la chaîne du marché cinématographique, de l'investisse111ent à la diffusion en passant par la production et la distribution. Il est impossible de trouver une solution dans des conditions défavorables où le phénomène du fort accaparement de l'industrie cinématographique coréenne est couplé avec à une logique industrielle de libéralisation du marché. Pour résoudre la monopolisation de l'industrie cinématographique coréenne, qui pose des problème décisifs et partials sur le marché, il va falloir une politique équilibrée de la promotion de la culture cinématographique menée par le KOFIC (Korean Film Council) qui est une organisation financée par le gouvemement. On voudrait proposer une politique de la culture cinématographique qui serait adaptée à la politique du cinéma de la Corée du Sud, à travers des recherches sur la situation actuelle ainsi que l'analyse comparée cles politiques du cinéma entre Corée du Sud et France.

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산란계 사료내 Conjugated Linoleic Acid(CLA)와 불포화지방산 함유 Oil의 첨가가 산란율과 계란의 품질에 미치는 영향 (Effects of Dietary Conjugated Linoleic Acid (CLA) and Oil Containing Unsaturated Fatty Acid Supplementation on Egg Production Rate and Quality in Laying Hens)

  • 김효진;유종상;신승오;조진호;진영걸;황염;김영준;황광연;양무성;김도중;김인호
    • 한국가금학회지
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    • 제35권2호
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    • pp.131-136
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    • 2008
  • 본 시험은 산란계 사료내 conjugated linoleic acid(CLA)와 불포화지방산 함유 oil의 첨가가 산란율과 계란 품질에 미치는 영향을 알아보고자 실시하였다. 시험 동물은 36주령 ISA Brown 갈색계 288수를 공시하였으며, 사양 시험은 5주간 실시하였다. 시험 설계는 1) BO(basal diet + 1% soybean oil + 1% oat), 2) BS(basal diet + 1% safflower oil + 1% oat), 3) BF (basal diet + 1% free fatty acid + 1% oat), 4) CD(basal diet + 1% CLA containing diglyceride + 1% oat), 5) CT(basal diet + 1% CLA containing triglyceride + 1% oat), 6) CP(basal diet + 1% CLA by-product + 1% soybean oil)로 6개 처리를 하여 처리당 8반복, 반복당 6수씩 완전 임의 배치하였다. 산란율에 있어서는 처리구간에 유의적인 차이를 보이지 않았다(P>0.05). 난각 강도에 있어서는 3주째에 CP 처리구가 BS, BF, CD, CT 처리구와 비교하여 유의적으로 낮았으며(P<0.05), 4주째에는 BO와 CP 처리구가 다른 처리구들과 비교하여 유의적으로 낮았다(P<0.05). 난각 두께에서는 3주와 4주째 모두에서 CP 처리구가 BS, BF, CD, CT 처리구와 비교하여 유의적으로 낮았다(P<0.05). 난중에 있어서는 3주와 4주째 모두에서 CP 처리구가 다른 처리구들과 비교하여 유의적으로 낮았다(P<0.05). 시험 4주째의 난황고에 있어서는 BF와 CT 처리구가 BO, CD, CP 처리구와 비교하여 유의적으로 가장 높았으며(P<0.05), BO와 CD 처리구는 CP 처리구와 비교하여 유의적으로 높았다(P<0.05). 또한, 4주째의 난황색에 있어서는 CP 처리구가 BO와 BS 처리구와 비교하여 유의적으로 높았다(P<0.05). 호우 유닛(Haugh unit)에 있어서는 3주와 4주째 모두에서 BO와 CP 처리구가 다른 처리구들과 비교하여 유의적으로 낮았다(P<0.05). 본 시험 결과 산란계 사료내 CLA와 불포화지방산 함유 oil을 첨가.급여하면 산란율에는 아무런 영향을 미치지 않으나, 계란 품질에 있어서는 향상되는 결과를 보였다.

The Inhibitory Mechanism of Aloe Glycoprotein (NY945) on the Mediator Release in the Guinea Pig Lung Mast Cell Activated with Antigen-Antibody Complexes

  • Ro, Jai-Youl;Lee, Byung-Chul;Chung, Myung-Hee;Lee, Seung-Ki;Sung, Chung-Ki;Kim, Kyung-Hwan;Park, Young-In
    • The Korean Journal of Physiology and Pharmacology
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    • 제2권1호
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    • pp.119-131
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    • 1998
  • It has been reported that the glycoprotein extracted from Aloe has strong anti-inflammatory response. However, there has been no research report yet about the effect of Aloe on allergic hypersensitivity reactivity. By using guinea pig lung mast cells, this study aimed to examine the effects of Aloe glycoprotein (NY945) on the mediator releases caused by mast cell activation, and also aimed to assess the effects of NY945 on the mechanism of mediator releases in the mast cell activation. We partially purified mast cell from guinea pig lung tissues by using the enzyme digestion, the rough and the discontinuous density percoll gradient method. Mast cells were sensitized with IgG1 (anti-OA) and challenged with ovalbumin. Histamine was assayed by fluorometric analyzer, leukotrienes by radioimmunoassay. The phospholipase D activity was assessed by the production of labeled phosphatidylalcohol. The amount of mass 1, 2-diacylglycerol (DAG) was measured by the $[^3H]DAG$ produced when prelabeled with $[^3H]myristic$ acid. The phospholipid methylation was assessed by measuring the incorporation of the $[^3H]methyl$ moiety into phospholipids of cellular membranes. Pretreatment of NY945 (10 ${\mu}g$) significantly decreased histamine and leukotrienes releases during mast cell activation. The decrease of histamine release was stronger than that of leukotriene during mast cell activation. The phospholipase D activity increased by the mast cell activation was decreased by the dose-dependent manner in the pretreatment of NY945. The amount of DAG produced by PLC activity was decreased by NY945 pretreatment. The amount of mass 1, 2-diacylglycerol produced by activation of mast cells was decreased in the pretreatment of NY945. NY945 pretreatment strongly inhibited the incorporation of the $[^3H]methyl$ moiety into phospholipids. The data suggest that NY945 purified from Aloe inhibits in part an increase of 1, 2-diacylglycerol which is produced by activating mast cells with antigen-antibody reactions, which is mediated via phosphatidylcholine-phospholipase D and phosphatidylinositol-phospholipase C systems, and then followed by the inhibition of histamine release. Furthermore, NY945 reduces the production of phosphatidylcholine by inhibiting the methyltransferase I and II, which decreases the conversion of phosphatidylcholine into arachidonic acid and inhibits the production of leukotrienes.

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Changes in Salivary Cortisol Concentration in Horses during Different Types of Exercise

  • Kang, Ok-Deuk;Lee, Wang-Shik
    • Asian-Australasian Journal of Animal Sciences
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    • 제29권5호
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    • pp.747-752
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    • 2016
  • This study aimed to estimate the change of stress level in horses based on cortisol concentration levels in their saliva. A total of 61 horses were divided into the following three groups: i) tourist riding experience (TR, n = 23); ii) resting group (RR, n = 14); and iii) horse-riding education (ER, n = 24). The saliva samples of TR and ER groups were taken using plain cotton Salivettes four times a day: at 07:00 (basal), 11:00 (Exercise 1, after 1-hour exercise in the morning), 14:00 (Exercise 2, after 1-hour exercise in the afternoon), and 16:00 (Exercise 3, after 1-hour exercise in the afternoon). The saliva samples of RR were measured at the same time. The samples were analyzed using the SAS program general linear model procedure. In a percentage relative to the base value, cortisol levels in Exercise 3 were confirmed to decrease in all groups as compared to the basal value percentage in the following sequence: ER>TR>RR. The highest peak was confirmed in Exercise 2 (approximately 131%) of RR group and the lowest peak appeared in Exercise 3 (approximately 52%) of ER group. Therefore, resting without any particular exercise can also increase the stress level of horses. Thus, it is better to exercise, as exercise can reduce the stress level, even in cases when riders are clumsy or lack appropriate horse-riding experience. The results of the present study are useful to equestrian center owners and educational riding instructors in that they provide a meaningful insight into a better horse management.

상류 전통주거 거창(居昌) 동계(桐溪) 정온(鄭蘊) 종택의 공간과 생활의 복원을 통한 해석 (Interpretation of the Jeong-On's Mansion, Traditional Upper Class House, in Geochang Focused on Dweller's Life)

  • 박희영;이희봉
    • 건축역사연구
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    • 제12권3호
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    • pp.131-148
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    • 2003
  • This study has main purpose to understand the traditional house, not by outside researcher's but by inside dweller's view. The house in Geochang, is descendent house of Jeong-On who was faithful scholar at Chosen Dynasty. In order to understand, I restore firstly the house form and space at traditional era, 60 years ago, and every dwellers not only family members but also servants and guests, by interviewing old matriarch. One of the main rules of the house disposition is Ancester worshipping life. Worshipping floor of Anchae, main building, is located unusually in front of Shrine for Jeong-On, in order to connect all activities directly. Sarangchae, men's building, opened to the funeral mourners, is separated by a wall because women have to serve foods and wail at the backside. Space for everyday life is separated by man/woman, insider/outsider, master/subordinate. Agricultural production is also key factor of the space allocation: big storage buildings for rice crop needed to tenant farming. Both activities of ancestor worship ceremony and guest greeting need large kitchen annex area for food preparation and serving space of rear veranda floor. A number of guests visit the house: guest-greeting activity is taken place from the family pavilion, Neungheo-Jeong and Saranchae by the social position. This study show that architectural space and form of the house reflects exactly dwellers life.

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