• Title/Summary/Keyword: Domestic variety

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MODELS FOR PREDICTING SINGAPORE CONTRACTORS' EXTENT OF INTERNATIONALIZATION

  • Florence Y.Y. Ling;Denise H.Y. Kwok
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.995-999
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    • 2009
  • Before a contractor embarks on exporting its services, it needs to know if it is likely to succeed. This research developed two prediction models to help contractors in Singapore predict the number of projects (Y1) and the contract values (Y2) that they are likely to secure from overseas. Detailed characteristics of 60 contractors who export their services (exporters) were obtained from the database of registered contractors in Singapore. Multiple linear regression models were developed and tests showed that Y1 is a robust model. A contractor's chance of winning more overseas projects may be predicted by the number of projects it acted as a subcontractor; the variety of projects it undertakes; the total contract value in the domestic market; and the number of countries it exported its services to. It is recommended that contractors who are planning to export their services be flexible instead of adopt a focused policy of undertaking only one or two project types in a few selected countries.

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Virtualization Technology Trends in Satellite/Mobile Communication Systems (위성/이동 통신 시스템에서의 가상화 기술 동향)

  • S.Q. Lee;J.H. Lee;M.S. Lee
    • Electronics and Telecommunications Trends
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    • v.39 no.1
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    • pp.36-47
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    • 2024
  • Virtualization technology supports the execution of software unrelated to the hardware environment through the decoupling of software and hardware. Additionally, it enables network slicing, allowing one physical device to be divided and used by a function or service by supporting sharing with isolation. Virtualization enables flexible platform use, allowing a variety of services to be launched without changes or additions to the hardware platform. We describe virtualization technology trends in satellite/mobile communication systems. Basic concepts and technical definitions are included, and the current status of research and development by domestic and foreign organizations, including the Electronics and Telecommunications Research Institute, is analyzed. Finally, future prospects and implications are discussed.

Inhibitory effect of the aqueous extract of a tetraploid 'etteum' variety in Platycodon grandiflorum on degranulation and inflammatory mediator release in RBL-2H3 cells (으뜸도라지추출물이 RBL-2H3 세포에서 탈과립과 염증매개물질의 분비 억제에 미치는 영향)

  • Jung, Jae In;Kim, Hyung Seo;Ji, Han Kyeol;Lee, Hyun Sook;Lee, Jae-Yong;Kim, Eun Ji
    • Journal of Nutrition and Health
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    • v.51 no.3
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    • pp.208-214
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    • 2018
  • Purpose: Platycodon grandiflorum (a domestic diploid variety, DV-PG) has been used as a food and component of various traditional oriental medicines. Although DV-PG is known to have an anti-allergic effect, little is known about the beneficial health effects of the tetraploid 'Etteum' variety in the Platycodon grandiflorum (TV-PG), which is a recently developed variety. In this study, we investigated the effect of TV-PG on the rat basophilic leukemia mast cell (RBL-2H3)-mediated allergic response. Methods: To examine the effects of TV-PG on the allergic response, RBL-2H3 cells were sensitized with dinitropheny (DNP)-immunoglobin E, treated with various concentrations of TV-PG, and challenged with DNP-human serum albumin. We estimated cell granulation by measuring the release of ${\beta}$-hexosaminidase and production of inflammatory mediators by ELISA. Results: TV-PG had no effect on the proliferation or cytotoxicity of RBL-2H3 cells within the concentration range of 0 to $200{\mu}g/mL$. TV-PG inhibited degranulation of RBL-2H3 cells by antigen stimulation in a dose-dependent manner. TV-PG also suppressed the production of inflammatory cytokines and mediators such as interleukin-4, tumor necrosis $factor-{\alpha}$, prostagladin E2, and leukotriene B4 in RBL-2H3 cells by antigen stimulation. Conclusion: These results indicate that TV-PG exhibits anti-allergic activity via inhibition of degranulation as well as suppression of inflammatory mediators and cytokine release. These findings suggest that TV-PG may have potential as a preventive and therapeutic agent for the treatment of various allergic diseases.

A New Malting Barley Variety, 'Baegho' with Resistance to Barley Yellow Mosaic Virus and Powdery Mildew (보리호위축병과 흰가루병 저항성 맥주보리 신품종 '백호')

  • Kim, Mi-Jung;Hyun, Jong-Nae;Park, Jong-Chul;Kim, Yang-Kil;Lee, Mi-Ja;Kim, Dae-Ho;Kang, Sung-Ju;Kim, Sung-Taeg
    • Korean Journal of Breeding Science
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    • v.43 no.6
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    • pp.538-542
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    • 2011
  • A new malting barley variety, 'Baegho', was developed from a cross between Azuma Golden and Nishinochikara in 1998. An elite line, YMB2139-2B-1-10-2, was selected in 2005 and designated as Milyang137. It showed good agronomic performance in the regional adaptation yield trials (RYT) from 2006 to 2008 and was released with the name of 'Baegho' having high yielding and BaYMV and powdery mildew resistance. The average heading and maturing dates of 'Baegho' were April 21 and May 28, which were 3 and 2 day later than those of Hopum, check variety, at the RYT, respectively. 'Baegho' has shoter culm length (78 cm), more spikes ($1,062per\;m^2$) and heavier 1,000 grain weight (40.7 g) than those of Hopum, respectively. 'Baegho' is resistant to domestic BaYMV strains I, III and IV and powdery mildew at Iksan. In growth habit, 'Baegho' is close to type (IV) that is distinguished from other Korean malting barley cultivars, which could tolerant to premature heading damage that is major concern for the practice of the malting barley cropping. The yield potential of 'Baegho' in the RYT was about 5.57 MT/ha, which is about 13% higher than those of Hopum. This variety has good malting quality in grain and malting analysis showed better 1,000 grain weight, husk rate, diastatic power than those of Hopum. 'Baegho' applied for protection of new varieties of plant in 2009.

Antioxidative and antimelanogenic effects of ethyl acetate fractions of Korean domestic honeys from different floral sources (화종에 따른 국내산 벌꿀 에틸 아세테이트 분획물의 산화방지능 및 멜라닌 생성 억제 효과)

  • Jeong, Ha-Ram;Baek, Youngsu;Kim, Dae-Ok;Lee, Hyungjae
    • Korean Journal of Food Science and Technology
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    • v.50 no.6
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    • pp.660-664
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    • 2018
  • Honey is known to have a variety of health-promoting effects. Ethyl acetate fractions (EAFs) of four Korean domestic honeys from basswood, Korean raisin, chestnut, and acacia as well as a New Zealand manuka honey were analyzed comparatively to evaluate their antioxidative and antimelanogenic effects. The EAFs of basswood, Korean raisin, and chestnut honey had higher antioxidant capacities and tyrosinase inhibition activities than those of manuka honey. Pretreatment of B16F1 melanoma cells with EAFs at $100{\mu}g/mL$ resulted in relative retention of melanin contents as follows: acacia honey (141.0%)>basswood honey (134.3%)>manuka honey (131.5%)>Korean raisin honey (107.3%)>chestnut honey (88.0%). Intracellular tyrosinase activities of B16F1 melanoma cells were significantly (p<0.05) lowered by EAFs of Korean raisin and chestnut honey than by EAF of manuka honey. Consequently, these results suggest that Korean domestic honeys from different floral sources serve as good sources of antioxidative and antimelanogenic agents.

What is an Appropriate Promotion Strategy for Korean Wheat Consumption? - Find Out in the Sensory Evaluation of Rice Meal Versus Rice Containing Wheat Meal by Age Groups-

  • Kyunsik Lee;Sehwa Lim;Kyeonghoon Kim;Jinhee Park
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2022.10a
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    • pp.321-321
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    • 2022
  • Wheat was brought to solve food scarcity with aid from the United States caused by the Korean War. The Korean government launched a campaign to encourage mixed rice and wheat meals due to shortage of rice production in the 1960s, Wheat consumption began in earnest. However, it is difficult to rebuild the domestic wheat production base devastated by the Korean War with the technology at the time. Thus, wheat was mainly consumed from imported in the past. Since then, as wheat consumption has increased due to westernization and diversification of dietary life, wheat became the second staple grain in Korea. In this situation, the government enacted the Wheat Industry Promotion Act to create a basis for sustainable production and consumption of wheat in Korea. This study sought to improve the self-sufficiency of domestic wheat by examining the possibility of using "Ariheuk", a variety of new Korean wheat, as a rice supplement in the same context as the govemment's policy. Wheat has been used as a raw material for the processed food, such as noodles and bread. However, we approached it by using whole wheat as a nutritional grain. Participants were recruited from the agri-food consumer panel conducted by Rural Development Administration. We set a final sample of 525 consumer panels based on the age of census household heads. The experiment was conducted in such a way that participants cooked and ate 100% rice meal and rice containing 20% whole wheat meal. Participants completed the sensory evaluation questionnaire with online. For this experiment, all participants were given same whole wheat product. The sensory evaluation questionnaire consisted of color, glossiness, stickiness, aroma, chewing, sweetness, nuttiness, chewiness, softness, bursting, flavor, texture and swallowability. The sensory evaluation results were analyzed by giving -3 points to +3 points. The former points were given to the response that 100% rice meal is very superior to the response that rice containing 20% whole wheat meal. The latter points were given vice versa. Zero point was given to the response that they are similar each other. As a result, rice with 20% whole wheat meal was better than 100% rice meal in terms of color, aroma, chewiness, bursting and flavor. In case of sweetness and glossiness, there didn't exist significantly different. On the other hands, 100% rice meal was better in terms of softness and swallowability. As a result of ANOVA by age groups, from 30s or younger to 60s or more, there was significant difference among the groups in terms of color, chewiness and bursting. As a result of post-hoc analysis with Duncan's multiple range test (p < 0.05), 50s were evaluated to be significantly superior in color, chewiness and bursting compared to other age groups. In conclusion, it is appropriate to use whole wheat as a supplement to rice in order to improve the self-sufficiency of domestic wheat. As a strategy to promote domestic wheat consumption, in case of Ariheuk, it is necessary to provide an experience through whole wheat tasting and to establish a marketing strategy segmented by age groups.

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A Study on Utilization of Korea Science Citation Database(KSCD) Based on Data Mining Techniques (데이터마이닝 기술을 이용한 한국과학기술인용색인DB 활용 방안 연구)

  • Park, Jong-Hyun;Choi, Seon-Heui;Kim, Byung-Kyu
    • Journal of Information Management
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    • v.43 no.4
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    • pp.191-210
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    • 2012
  • Scholarly science citation data is typically of large volume and consists of a variety of data. Moreover, the volume of data is increasing more and more. Therefore, there are some requirements to store and manage the data efficiently and Korea Institute of Science and Technology Information (KISTI) develops Korea Science Citation Database (KSCD) which manage and serve very large-volume of korea science technique information including citation data. However, current services based on KSCD are not enough for various users. Thus, it is important issue to offer a variety of services using KSCD. For example, if a user searches articles described by a specific author, then a user may want to find not only the articles cited by a certain author but also those articles that study similar topics. However, it is not always easy to provide these services with citation data. Therefore, this paper surveys studies about services using citation data in order to find approaches for better utilizing KSCD. Especially, this paper considers data mining techniques, because data mining is one of the main techniques to extracting semantic information from big data. Therefore, this paper discusses methods for utilizing large volume of KSCD based on data mining technique.

A Characteristics of the Applied SOG Lens for the CPV Module (SOG렌즈를 적용한 집광형 태양전지모듈 특성)

  • Jeong, Byeong-Ho;Lee, Kang-Yoen;Park, Ju-Hoon;Moon, Eun-Ah;Lee, Sang-Hyun;Kim, Dae-Gon
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.61 no.2
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    • pp.97-102
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    • 2012
  • CPV system in the desert areas or areas near the equator, as is suitable for high-temperature region. As compared to silicon solar cells, CPV system have a high proportion of a BOS (balance of system). Solar cells because of its low proportion when designing a module technology is applied in a variety of ways. Applied to the CPV system is classified into two kinds of optical technology. One of those using fresnel lens uses refraction of light energy. The other is a mirror reflection of the structure using sprays. Both of these two ways to condense the sun to collect solar cell is a form of light. And goals by using a small solar cell materials is to produce more energy. In this paper, suitable for a domestic environment, with the aim CPV Manufacturing Technology, built on a variety of modular process technology to the development of a prototype performance analysis was carried out. In particular, silicone coated on the glass by the method of implementation of the Fresnel lens SOG(Silicon on glass) by applying the lens to absorb the solar spectrum was broad. In addition to, for the analyze to characteristics of the CPV module, developed CPV module performance and generating characteristics studied. These related technology through research and development of high-performance multi-junction solar cells, modules, development of concentrating solar power systems to facilitate the growth of the market is considered to be.

Digital Media Design Curriculum: Focusing on Planning and Evaluation in Design Process (디지털미디어 디자인학과의 교과 과정 현황 및 교과 과정 제안: 계획 및 평가 프로세스를 중심으로)

  • Yoon, Young-Doo
    • The Journal of the Korea Contents Association
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    • v.10 no.10
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    • pp.190-196
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    • 2010
  • Digital media has evolved in different areas as a result of the development of media and communications technology. The development of such media has also affected design in general as well as the design process systems focused on computer systems. Specifically, study of digital media design is based on a variety media and the development of computers due to social and environmental changes. Additionally, study is required on the convergence of variety of research including business, computer science, and human ergonomics. Nevertheless, most curricula in domestic universities are biased towards training practical manpower rather than creative/analytical manpower. For this reason, interchange between and study in multidisciplinary courses is desirable. Therefore, this study analyzes the curricula of departments of multimedia design of major universities and suggests enhanced curricula based on an analysis of the current state and understanding of the problem.

A Study on the Theme Selection and Prototype Production for the LX Information Map Service (LX의 정보지도 서비스를 위한 주제선정 및 시범제작)

  • Jeong, Dong-Hoon;Bae, Sang-Keun;Lee, Seong-Gyu
    • Journal of Cadastre & Land InformatiX
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    • v.45 no.1
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    • pp.123-135
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    • 2015
  • In order to satisfy the high expectations of consumers for a variety of consumer's desired subject area, information could be provided in the form of a map according to the analysis information. With the name change in 2015, LX would intend to play a role in building the information infrastructure that can be supported government policy as an intermediary between the government and private sector. Therefore, in this study, we would like to propose a plan that provide personalized information to the consumer. Through compositing a variety of time-series data(inner or outer of LX) based on public information, and analyzing spatially and temporally the rapidly changing land status. For these purpose, prior research and domestic or abroad thematic map service about thematic map making were reviewed. And the reason why the LX makes information map was presented. Also, themes of 3 field were selected, and depending on the data processing or analysis level and theme were subdivided, and then production and expression method were proposed.