• 제목/요약/키워드: Information differentiation

검색결과 741건 처리시간 0.023초

Morphological Variation of Two Cultivated Types of Perilla Crop from Different Areas of China

  • Ma, Shi Jun;Lee, Ju Kyong
    • 원예과학기술지
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    • 제35권4호
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    • pp.510-522
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    • 2017
  • To better understand the morphological variation for Perilla crop in different areas of China, we studied the morphological variation in 87 accessions (84 cultivated var. frutescens and three cultivated var. crispa) from high latitude (Northeast China) and middle latitude (North and Northwest China) areas of China by examining seven quantitative and 10 qualitative characters. Analysis of the morphological variation determined that there was significant morphological differences in five quantitative traits between cultivated var. frutescens and cultivated var. crispa, including effective number of branches (QN2), number of internodes (QN3), number of branches (QN4), length of the largest inflorescence (QN5), and days from germination to flowering (QN7). However, two quantitative traits-plant height and number of florets of the largest inflorescence-did not show any significant differences between cultivated var. frutescens and cultivated var. crispa. In addition, significant differences for six quantitative traits were found between the accessions of cultivated var. frutescens originating from high and middle latitude areas in China, which included QN2, QN3, QN5, number of florets of the largest inflorescence (QN6), and QN7. Principal components analysis (PCA) identified five quantitative characters [plant height (QN1), QN2, QN3, QN4, QN7] and six qualitative characters [fragrance of plant (QL1), color of reverse side of leaf (QL3), degree of pubescence (QL5), color of flower (QL6), shape of leaf (QL7), and hardness of seed (QL10)] that contributed to the positive direction on the first axis. The other quantitative and qualitative characters contributed to the negative direction on the first axis. Most accessions of cultivated var. frutescens and cultivated var. crispa were clearly separated by the first axis. In addition, most accessions of cultivated var. frutescens are from high latitude and middle latitude areas that were clearly separated by the first axis, except for several accessions. The findings from this study will provide useful information towards understanding the morphological variation of Perilla crop according to geographical distribution in high and middle latitude regions of China.

TCP NJ+ : 높은 BER에 강인한 패킷 손실 원인별 처리기반 전송방식 (TCP NJ+: Packet Loss Differentiated Transmission Mechanism Robust to High BER Environments)

  • 김정래;이유호;추현승
    • 인터넷정보학회논문지
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    • 제8권5호
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    • pp.125-132
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    • 2007
  • 무선 네트워크에서 네트워크 혼잡과 bit-error-rate(BER)에 의한 패킷 손실을 구분하는 기법과 현재 가용 대역폭을 예측하여 전송량을 조절하는 기법은 무선 TCP의 성능을 크게 향상시킨다. 네트워크 혼잡과 BER에 의한 패킷 손실을 명시적으로 구분하는 TCP New Jersey는 현재까지 제안된 무선 TCP 기법 중 가장 높은 성능을 보이지만 무선 링크 에러율이 높아지면 전송률이 크게 떨어지는 문제와 가용 대역폭 예측 알고리즘이 백그라운드 트래픽 패턴에 의존적인 문제가 있다. 또한 패킷 손실을 감지하여 패킷 손실의 원인을 판별하는 기법으로 원인을 구분하여 감소된 전송량을 회복하는 기법이 효율적이지 못하다. 본 논문에서는 TCP New Jersey의 문제점을 보완한 TCP NJ+를 제안한다. TCP NJ+는 향상된 전송량 회복 기법으로 BER에 의한 일반적인 패킷 손실뿐만 아니라 retransmission timeout이 발생하여도 보다 높은 전송률을 보장한다. 제안된 TCP NJ+는 NS-2 네트워크 시뮬레이터를 이용하여 성능평가 한 결과 5%의 높은 무선 링크 에러율을 갖는 네트워크에서는 TCP New Jersey에 비해 19%, TCP Westwood에 비해 57%의 성능향상을 보인다.

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Induction of Apoptosis in Chicken Oviduct Cells by C2-Ceramide

  • Kim, Sung Hak;Choi, Ji Young;Sihn, Choon-Ryoul;Suh, Eun Jung;Kim, Sun Young;Choi, Kang Duk;Jeon, Iksoo;Han, Jae Yong;Kim, Tae-Yoon;Kim, Sang Hoon
    • Molecules and Cells
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    • 제19권2호
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    • pp.185-190
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    • 2005
  • The chicken oviduct is a dynamic organ that produces secretory proteins such as ovalbumin and its cells undergo cell proliferation and differentiation. There has been no study of the cellular mechanism involved in cell death in the chicken oviduct. Therefore, this study has focused on the study of apoptosis in primary oviduct cells. Because ceramide is known to activate apoptosis in tumor cells and is produced in the oviduct, we used an exogenous ceramide analog to induce cell death. The viability of ceramide-treated chicken oviduct cells decreased in a dose-dependent manner and apoptotic cells were detected by staining with annexin V. The expression of apoptosis-related genes was assessed by RT-PCR and bcl-2 mRNA was found to decrease after exposure to ceramide while Bcl-x mRNA increased 12 h post-treatment. In addition, caspase-3 was expressed strongly in the early stages of apoptosis, while caspase-1 and -9 transcripts increased at later times. We conclude that ceramide induces apoptosis in oviduct-derived primary cells via a caspase- and bcl-2-dependent pathway.

서버통합 및 가상화를 위한 효율적인 소프트웨어 라이선싱 관리전략에 관한 연구 : N-데이터센터를 중심으로 (Efficient Software Licensing Management Strategy for Server Consolidation and Virtualization Using the N-Datacenter Case)

  • 최영진;나종회;최광돈
    • 한국IT서비스학회지
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    • 제10권4호
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    • pp.281-293
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    • 2011
  • Server consolidation and virtualization have become an integral part of IT planning to reduce TCO cost and ensure the high availability for customer, enlarge the flexibility to computing resource in today' enterprise data centers. In spite of having the variety advantages of server consolidation and virtualization, they cause many problems such as the software licensing issues, virtual server sprawl, network complexity issues, hardware start-up costs, and failover costs. In particular, software licensing problem brings about the serious results in operating of data center and also presents a significant challenge to virtualization because many vendors have realized that licensing policies applicable to physical systems are not compatible with virtual machines. So, the IT planers must be considering this problem before they conducts the server consolidation and virtualization. In this paper, we proposed the efficiency strategy of SW licensing for server consolidation and virtualization analyzing the N-Datacenter case in Korea. As a result, we suggest the two strategies as technical and management/contract aspect. First, as the technical aspect, we propose i) the adaptation of suitable licensing for virtualization, ii) differentiation of license according to the characteristics of server, iii) the core distribution of licenses to minimizing. Second, as the management/contract aspect, we suggest following three things. i) The existing license agreement is changed to the right licensing for virtualization. ii) The license agreement is contracts the active focused. iii) When a new contract should be added to virtualization provisions.

기능성 발효유식품의 표면디자인 연구 (Surface Design Research of Functional Fermented Milk Food)

  • 이종우
    • 한국콘텐츠학회논문지
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    • 제5권6호
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    • pp.163-171
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    • 2005
  • 90년대 초부터 근래에 이르기까지 많은 식품회사들은 기존의 식품범주와 연계해서 각 제품의 특성에 맞는 새로운 기능성 식품들을 개발하기 시작하였다. 소비자들의 의식도 건강과 장수에 대한 기대가 높아지면서 조금이라도 특정한 성분과 효능이 기대되는 기능성 식품에 관심을 가지게 되었으며, 기능성의 부여 여부가 신제품 개발 전략의 중요한 포인트(Point)가 되었다. 포장디자인도 이러한 기능성식품의 개발에 편승하여 기능성 제품의 특성과 정보를 일반 소비자에게 제대로 전달하고 강하게 부각시켜야 할 중요한 역할을 담당하게 되었다. 따라서 본 연구에서는 이러한 기능성식품의 일반적인 고찰과 함께 남녀노소 누구나 즐겨 마시는 발효유에 대하여 각 제품이 가지고 있는 기능적 특성과 이들의 표현 전략을 분석해 봄으로써 보다 바람직한 기능성식품의 제품정보전달방법과 차별화전략에 대하여 알아 보고자 한다.

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Mastitis Detection by Near-infrared Spectra of Cows Milk and SIMCA Classification Method

  • Tsenkova, R.;Atanassova, S.
    • 한국근적외분광분석학회:학술대회논문집
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    • 한국근적외분광분석학회 2001년도 NIR-2001
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    • pp.1248-1248
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    • 2001
  • Mastitis is a major problem for the global dairy industry and causes substantial economic losses from decreasing milk production and considerable compositional changes in milk, reducing milk quality. The potential of near infrared (NIR) spectroscopy in the region from 1100 to 2500nm and chemometric method for classification to detect milk from mastitic cows was investigated. A total of 189 milk samples from 7 Holstein cows were collected for 27 days, consecutively, and analyzed for somatic cells (SCC). Three of the cows were healthy, and the rest had mastitis periods during the experiment. NIR transflectance milk spectra were obtained by the InfraAlyzer 500 spectrophotometer in the spectral range from 1100 to 2500nm. All samples were divided into calibration set and test set. Class variable was assigned for each sample as follow: healthy (class 1) and mastitic (class 2), based on milk SCC content. The classification of the samples was performed using soft independent modeling of class analogy (SIMCA) and different spectral data pretreatment. Two concentration of SCC - 200 000 cells/ml and 300 000 cells/ml, respectively, were used as thresholds fer separation of healthy and mastitis cows. The best detection accuracy was found for models, obtained using 200 000 cells/ml as threshold and smoothed absorbance data - 98.41% from samples in the calibration set and 87.30% from the samples in the independent test set were correctly classified. SIMCA results for classes, based on 300 000 cells/ml threshold, showed a little lower accuracy of classification. The analysis of changes in the loading of first PC factor for group of healthy milk and group of mastitic milk showed, that separation between classes was indirect and based on influence of mastitis on the milk components. The accuracy of mastitis detection by SIMCA method, based on NIR spectra of milk would allow health screening of cows and differentiation between healthy and mastitic milk samples. Having SIMCA models, mastitis detection would be possible by using only DIR spectra of milk, without any other analyses.

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농촌전통테마마을의 활성화 방안에 관한 연구 -완주 디지털 산내골을 중심으로- (A Study on Revitalization of Rural Traditional Theme Villages -Focused on Wanju Digital Sannaegol-)

  • 김명룡
    • 농촌지도와개발
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    • 제15권3호
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    • pp.499-531
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    • 2008
  • Rural Traditional Theme Villages are one of the village-based businesses, which obtains excellent results. However, it also has brought negative results such as splits in locals due to income disparity, and ill-advised development which does not consider surrounding potential resources, etc. So, this study analyzes several problems of Rural Traditional Theme Villages, and proposes how Rural Traditional Theme Villages can be revitalized by benchmarking other successful cases. First, it is important to pursue differentiation of operating programs for Rural Traditional Theme Villages. Second, it is possible to give weight to elements which show efficiently rural atmosphere to enhance images of Rural Traditional Theme Villages. Third, expanding budget support and securing a new route for budget are definitely needed to cultivate self-growth capability of villages. Fourth, it is necessary to apply experts and facilities of local-based universities, cooperate with relevant organizations, and nurture local leaders by various means such as study in/visits to advanced regions at home and abroad and experts training. Localgovernment should be in charge of nurturing talented people. Fifth, it is necessary to reinvigorate rural economy by networking each Rural Traditional Theme Village, providing a wide range of information on diversified villages to people in cities, and promoting consumption. Moreover, securing immovable customers is important through networking city-rural exchange with city consumers and other organizations, and sisterhood relationship, membership businesses and events. As mentioned above, it is expected that Rural Traditional Theme Villages will be able to be developed continuously as a model for rural revitalization, which is stagnant, by expanding city-rural interchange.

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마켓 KU 프로젝트 (Market KU Project)

  • 김인경
    • 한국의상디자인학회지
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    • 제12권3호
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    • pp.83-92
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    • 2010
  • The current design paradigm shift which has been in progress around the world would be a good opportunity for Korea, which has led the age of information, to build design competence and gain international competitiveness. In addition, it would be a good idea for colleges as well as firms to develop a new educational system and create academia-industry-research synergy. This paper researches the market KU project promoted by Design Venture KU which has been established by the College of Artand Design of Konkuk University as a part of differentiation strategy. The methods to improve the competitiveness of Korean fashion design by uniting college creativity and market practicality are as follows: First, for convergence of creativity and practicality, it is necessary to come up with a systematic design-based educational system. In other words, the undergraduate program needs to gradually expand courses by focusing on creativity instead of functions while the graduate program should be able to develop design pattern, textile and marketing products and secure the market to gain competitiveness as a business incubator. Second, the working-level engineers as well as professors will be encouraged to participate in special lectures or seminars and take necessary lessons. In addition, academia-industry cooperation courses will be further strengthened. It is also important to actively participate in an official contest or exhibition and receive a prize. Third, to elicit creativity from students, it is necessary to help them think in a flexible and experimental way with voluntary and interesting programs. As mentioned above, it is expected that 'Market KU Project' would help students build expertise by offering them a chance to experience the real world and become the world's leading designers in Korean fashion design.

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사이버공간과 『구운몽』의 세계 (Virtual Reality and the Space of Gu-Wun-Mong)

  • 전이정
    • 한국콘텐츠학회논문지
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    • 제11권6호
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    • pp.90-97
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    • 2011
  • 최근 통신 기술과 인터넷의 발달로 인해 현대인들의 활동영역이 사이버 공간으로 넓어지면서 사이버공간에서의 자아 정체성과 윤리 문제가 중요하게 부각되고 있다. 이러한 시점에서 가상공간에서의 환몽 체험을 통해서 진정한 자아를 탐색하는 과정을 담은 우리 고전 소설 구운몽 은 현대 네티즌들에게 의미있는 시사점이 될 수 있다. "구운몽"의 주인공인 성진은 환생을 통해서 또다른 욕망의 주체인 팔선녀와 만남으로써 가상 세계를 체험하고 있다. 이를 통해 성진은 '진/가'의 이원적인 세계관을 극복하고 진정한 구도자로서의 자아를 확립하기에 이른다. "구운몽"의 환몽 체험은 현실 세계와 가상 세계를 구별하면서, 성진에게 양소유라는 새로운 자아를 부여한다. 성진은 아바타인 양소유를 통해서 자아의 한계를 초월하여 다중적인 주체로서 자신을 자리매김한다. 이러한 주체의 확장을 통해 결국 성진은 현실과 가상이 모두 깨달음을 위한 주체의 통합 과정임을 인식하게 된다. 이렇듯, "구운몽"은 컴퓨터와 같은 물리적인 매개로서가 아니라 인간의 정신으로 구성되는 가상 체험, 가상 세계를 이야기하고 있는 작품으로 이해된다. 현실 세계와 가상 세계의 대립, 충돌과 욕망의 무한성 속에서 갈등하는 현대 네티즌들에게 자아에 관한 성진의 깨달음은 모순적인 상황을 해결할 수 있는 열쇠가 될 수 있을 것이다.

첨단산업과 패션산업의 경쟁전략적 유사성에 관한 연구 : 일본 Y사의 사례 연구

  • 김양희
    • 기술경영경제학회:학술대회논문집
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    • 기술경영경제학회 1997년도 제11회 하계학술발표회 논문집
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    • pp.224-243
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    • 1997
  • The study examines the similarities of competitive strategy between fashion industry and high-tech industry through a case study of a Japanese maker. From the study, some implications are drawn for the Korean fashion industry. It is hoped that this, will help towards establishing a suitable competitive strategy for firms in this industry. In the fashion industry, the product life cycle is so short as to prompt a new product obsolete too quickly, and the extent of product differentiation is remarkably extensive compared to any other industry. Generally speaking, firms in this industry focus more of their resources on product development and marketing rattler than on production and they attempt to maneuver the speed when they are required to enhance their competitive edge. This is enabled through being, as one might expect, information- and technology- intensive as are high-tech industries. In this sense, that of the competitive strategy of a firm in fashion industry to be similar to high-tech industry. The Japanese firm Y has transformed itself a leading firm in fashion uniform segment. The firm could achieve this status by integrating each function needed for creating customer*s value, that is, product development, production and marketing within one Quick Response System. For this purpose, Y introduced a bundle of high-tech communication systems such as SPD, SDS, ATOM, NICS and so on. In this sense it can be said that Y was aware of what sort of competitive strategy was required in the industry. Implications for Korean firms is that, first, the magnitude of understanding the industry specific factors in establishing competitive strategy in the fashion industry, are speed, flexibility and systematic integration supported by high technology which are characteristic of high-tech industries. Secondly, as can be seen in the fact that Y emphasized logistics in its technological transformation, the significance of logistics control is a key to manipulating speed and flexibility in the industry. To sum up, those who have insight into above findings will be likely to keep their competitiveness in the industry not only in the Korean market but also in global market in the near future.

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