• Title/Summary/Keyword: 생존력

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Feeding Effect of Far Infrared Irradiated Rice to Survival Activity against Drowning of Mouse (원적외선 저장쌀의 급여가 흰쥐의 생존력에 미치는 영향)

  • Kwon, O-Jun;Yoo, Byung-Hyuk;Choi, Ung-Kyu;Son, Dong-Hwa
    • Korean Journal of Food Science and Technology
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    • v.35 no.2
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    • pp.302-305
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    • 2003
  • Effect of feeding far infrared-irradiated rice on survival ability of mice against drowning was investigated. Moisture absorption of far infrared-irradiated rice was about 1.3-fold higher than that of normal rice. L-Value was maintained high during cooking and storage. Weight of mice was not influenced by far infrared-irradiated rice content. No significant difference in survival abilities of mice between normal rice and far infrared-irradiated rice was shown until 1 breeding week. Significant differences in survival ability between two groups were found in 2 (9.5%) and 3 breeding weeks (7.2%).

Intraspecific Androgenesis in Mud Loach (Misgurnus mizolepis): II. Diploid Restoration and Viability Assessment (미꾸라지(Misgurnus mizolepis)의 웅성발생성 처녀생식: II. 웅성발생성 이배체 유도 및 생존능력 평가)

  • Nam, Yoon-Kwon;Bang, In-Chul;Noh, Choong-Hwan;Cho, Young-Sun;Kim, Dong-Soo
    • Journal of Aquaculture
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    • v.19 no.4
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    • pp.281-287
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    • 2006
  • Intraspecific diploid androgenesis was achieved in mud loach (Misgurnus mizolepis) by the inhibition of the first mitotic division using combined thermal treatment. A combined thermal treatment (heat shock at $40.5\;^{\circ}C$ for 120 sec followed by cold treatment at $1\;^{\circ}C$ for 45 min) applied to the 1st metaphase of cell division (28 min post insemination at $25\;^{\circ}C$) successfully recovered viable androgenetic diploidy. Mean hatching success of the androgenetic diploid group was 29.6%, and the average yield out of total eggs taken was about 7% assessed at 1 week of age. However, relatively large variations in the yield of diploid androgenesis were observed among different egg batches used as cytoplasmic donors. Successful diploidization was confirmed by flow cytometric analysis, and parthenogenic reproduction in a paternal exclusive manner was verified with transgene dosage. Significant mortality was found in most androgenetic groups especially from hatch to 1 month of age, although such mortality was stabilized later.

High Concentration of Sodium Chloride Increases on Survival of Non-pathogenic Erwinia carotovora subsp. carotovora 9-3 during Drying and Storage (비병원성 Erwinia carotovora subsp. carotovora 9-3의 건조 및 저장의 과정에서 생존에 미치는 염 효과)

  • Park, Kyoung-Soo;Kim, Gun-Ju;Shin, Yun-Ju;Kim, Sik;Cha, Jae-Soon
    • The Korean Journal of Pesticide Science
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    • v.12 no.4
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    • pp.368-374
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    • 2008
  • Dry formulation is a limiting step for successful development of microbial bio-pesticides with the antagonistic Gram-negative bacteria because their survival rates are too low during drying and storage. The high concentration of sodium chloride (NaCl) in culture medium that induces osmolyte in bacterial cells is known to increase of survival rate during drying in many Gram-negative bacteria. Effect of NaCl on survival of antagonistic non-pathogenic Erwinia carotovora subsp. carotovora 9-3 (Ecc 9-3) during drying and storage was studied. Growth rate of Ecc 9-3 was not much different up to 0.5 M NaCl in NB while it was lower significantly with 0.7 M NaCl. Survival rates were twice and 3 times higher with 0.5 M NaCl than with no additional NaCl during drying at room temperature and freeze-drying, respectively. Survival rate was also higher with high NaCl in culture medium during storage after drying. It was not much different on storage at $4^{\circ}C$ both of drying at room temperature and freeze-drying. However, the survival rate was higher on storage at $27^{\circ}C$ and $37^{\circ}C$ with high NaCl concentration. Among the additives tested, lactose affects most to survival rate both of drying at room temperature and freeze-drying, and dextrin influenced significantly to survival rate of drying at room temperature.

A Study on Competitiveness Changes of Specialty Construction Firms Under No Restriction in General and Specialty Contracting (겸업제한 폐지에 따른 전문건설업체의 경쟁력 요소 변화에 관한 연구)

  • Choi, Sang-Beum;Park, Hee-Taek;Park, Chan-Sik
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.619-623
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    • 2008
  • Recently, the restriction of contracting business between general and specialty contractors are deregulated, which means the elimination of the traditional market entry block in the Korean construction industry. It could be a threat and/or an opportunity to construction firms, and requires establishing new business strategies in order to obtain relative competitiveness between the general and the specialty. Under this change in the industry, this research performed to provide some suggestions for specialty firms in setting up their new business strategies by analyzing various changes of their competitiveness elements. This study extracted 20 core competitiveness elements from major 6 competitive categories required in doing specialty contracting business, and their relative importance between the 20 elements were measured. It was found that the specialty's relative competitiveness has been greatly changed and affected by the deregulation of the protective business restriction.

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Antioxidant and Anticancer Effects of Water Extract from Pleurotus ostreatus (느타리버섯 물 추출물의 항산화 및 항암 활성 효과)

  • Choi, Hae Yeon;Ryu, Hye-Sook
    • The Korean Journal of Food And Nutrition
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    • v.28 no.1
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    • pp.60-65
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    • 2015
  • Mushrooms (Pleurotus ostreatus) have been used as traditional remedies as well as food sources. This study particularly used an extract of Pleurotus ostreatus among many other mushrooms for research to figure out the antioxidant activity and an effect of cytotoxin. The result of antioxidative effect was significantly increased at the high concentration. The otal contents of polyphenol and flavonoid were $30.2{\pm}0.7$ and $20.4{\pm}0.6$ respectively. Both reducing power and DPPH radical scavenging activities are highest at 5.0 mg/mL of concentration. According to the research about cytotoxin of normal cell, an extract of Pleurotus ostreatus showed no existence of toxicity based on 80.5% of viability. Meanwhile, Pleurotus ostreatus is not strongly effective on the growth of cancer cell, indicating anti-cancer effect has a quite high range of viability up to $70.0{\pm}5.3%$ in 5 mg/mL of concentration.

Bacillus sphaericus의 ts-D1216의 특성연구(II)

  • 김재수;서정희;황성희;이형환
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 1986.12a
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    • pp.521.2-521
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    • 1986
  • 3$0^{\circ}C$에서 대수증식기 세포를 42$^{\circ}C$에서 1시간동안 배양시킨 다음 3$0^{\circ}C$로 다시 이동시켰을 때 DNA합성은 Chloramphenicol의 존재하에서도 재 개시되었다. 그리고 Chloramphenicol을 처리하였을 때 세포 생존력은 크게 증가하지 않았고, 세포의 모양은 정상세포보다 더 길어졌다.

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이스라엘의 관점에서 본 소련 전차

  • Lee, Tae-Ho
    • Defense and Technology
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    • no.3 s.121
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    • pp.44-51
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    • 1989
  • 소련이 운용하는 전차 모델은 아직까지 중동지역국가의 중요한 장비인 T-55 및 T-62와 반고정(Semi-fixed)탄을 사격하는 125미리 활강포를 장착한 T-64와 T-72, 그리고 새로운 T-80등 5가지이다. 전차전에서 이스라엘군의 경험이 인간공학적 측면등 소련 전차설계의 결점을 확인시켜 주었지만, 원칙적으로 소련 전차는 전투지향적이고 야전조건에 생존력이 있는 우수한 장비이다. 만약 고도로 훈련된 승무원에 의해서 운용된다면 가장 위험하고 치명적인 상대가 될수 있는 것이다

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A Study on Submarine Stealth (잠수함 스텔스에 관한 연구)

  • Choi, Chang-Mook
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2011.10a
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    • pp.716-718
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    • 2011
  • 첨단 과학기술의 발달에 따라 미래 해전의 양상은 비대칭적인 전략과 수단이 보편화되는 양상으로 전개될 것으로 전망되며, 비대칭전력의 핵심인 잠수함의 중요성이 대두 될 것으로 판단된다. 따라서 본 논문에서는 중요성이 대두되는 잠수함 측면에서 잠수함을 탐지하는 대잠전 탐지체계를 분석한 결과 소나체계인 음향탐지체계와 전자파, 자기, 광학장비 등으로 탐지하는 비음향탐지체계로 구분되며 각각의 탐지체계로부터 탐지를 거부하고 생존력을 증대시키기 위해 필요한 잠수함의 스텔스 발전 방향을 제시하였다.

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가축분뇨 자원화로 양돈경쟁력 강화하는 전남 영암지부

  • O, Yu-Hwan
    • The Korea Swine Journal
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    • v.29 no.2 s.330
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    • pp.154-159
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    • 2007
  • 우리 농민들의 생존권을 위해 한.미 FTA 협상 반대에 대한 목소리가 높아지고, 2012년부터 해양배출이 금지되어 가축분뇨 처리문제에 비상이 걸리는 등 우리 양돈산업의 생존을 위한 대책 마련이 발등의 불로 다가온 가운데 양돈인 스스로의 양돈산업 경쟁력 향상과 액비를 통한 가축분뇨 자원화로 분뇨처리 문제 해결을 통해 위기를 극복하는 지부가 있다. 강대천 지부장을 중심으로 가축분뇨 자원화에 앞장서는 전남 영암지부(지부장 강대천)가 그 주인공들이다.

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Strategy of HR Solution in Global Dimension (글로벌 차원의 통합된 HR 솔루션 전략)

  • Kim, Yong-Woo;Park, Seok-Cheon;Hong, Suk-Woo;Kim, Tae-Youb
    • Proceedings of the Korea Information Processing Society Conference
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    • 2013.05a
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    • pp.1103-1106
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    • 2013
  • 지속적인 세계 경제 침체와 급속한 경영환경 변화 속에서 세계 각국과 기업들은 생존을 위해 글로벌 인재들을 확보하고 있다. 이미 세계적인 기업들은 전 세계에 흩어져 있는 수천, 수만의 글로벌 인재들을 고용하고 있으며, 글로벌 인재들의 역량을 최대한 활용하여 지속 가능한 경쟁력과 새로운 기술들을 창조하기 위해 노력하고 있다. 이미 전 세계는 글로벌화 되었고, 각기 다른 문화와 환경에서 모인 글로벌 인재들을 얼마나 잘 활용하여 시너지를 창출하고 지속적인 경쟁력을 강화시켜 인류 생존에 필요한 기술들을 창출 할 수 있느냐가 세계적인 이슈로 자리 잡고 있다. 수많은 해결책이 존재하지만 인적자원을 효율적으로 활용 할 수 있는 글로벌 차원의 통합된 HR 솔루션에 대해 분석한다.