• 제목/요약/키워드: IMPACT2002+

검색결과 995건 처리시간 0.028초

Evaluation of Bread Baking Quality of Korean Winter Wheat over Years and Locations

  • Hong, Byung-Hee;Park, Chul-Soo;Baik, Byung-Kee
    • 한국작물학회지
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    • 제47권1호
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    • pp.13-20
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    • 2002
  • Bread baking parameters and relationships between bread baking properties and flour characteristics were evaluated for two years, 1997 and 1998, and at two locations, Suwon and Deokso, with Korean winter wheat cultivars and lines. Among the bread baking parameters, lightness of crumb grain showed differences between years. No significant differences were found in dough mixing time, bread loaf volume, crumb grain score or firmness. Keumkangmil, Suwon 278 and Tapdongmil showed higher bread loaf volume, good structure of crumb grain and softer crumb firmness. However, compared to commercial flours for baking, cultivar means averaged over years and locations of nineteen Korean winter wheats showed poor bread baking quality because of low protein content and unsuitable protein quality. Protein content and flour swelling volume showed better relationships with the bread baking parameters than other flour characteristics. Friabilin-absence lines showed softer crumb firmness than those of friabilin-presence lines.

Evaluation of Korean Noodle Quality of Korean Winter Wheat over Years and Locations

  • Hong, Byung-Hee;Park, Chul-Soo;Baik, Byung-Kee
    • 한국작물학회지
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    • 제47권1호
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    • pp.21-28
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    • 2002
  • Noodle texture parameters of Korean style wet and dry noodles and relationships between noodle quality and flour characteristics were evaluated for two years, 1997 and 1998, and at two locations, Suwon and Deokso, using Korean winter wheat cultivars and lines. No significant difference for chewiness was found between cultivars over locations. Noodles made from flours from 1997 showed significantly higher chewiness than those from 1998. Chewiness of cooked noodles showed positively significant correlations with protein content and SDS sedimentation volume and negatively significant correlations with starch peak viscosity and flour swelling volume. Korean winter wheat cultivars, except for Gobunmil, Keumkangmil Tapdongmil, Suwon 265 and Suwon 280, showed chewiness of cooked noodles similar to commercial flours used for noodle making in Korea and Japan.

지역공동체를 위한 수문/수질 평가 의사결정지원시스템 (Hydrological Impect Evaluation Web-Based DSS for Local Community)

  • 최진용
    • 농촌계획
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    • 제8권2호
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    • pp.3-16
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    • 2002
  • 의사결장지원시스템은 다양한 분야에 적용되어 왔으며, 그 중 수자원 및 수질 관련 분야에도 다각적으로 적용되어 왔다. 본 연구에서는 미 농무성의 자연자원보전국(NRCS, Natural Resources Conservation Service)에서 개발한 유출곡선법(Curve Number Method)과 EMC(Event Mean Concentration)을 사용한 L-THIA(Long-Term Hydrologic Impact Assessment) 수문/수질 모형을 강우자료 데이터베이스, 웹기반 지리정보시스템, 웹 사용자 편의 시스템과 통합한 수문/수질 L-THIA web 의사결정지원시스템을 개발하였다. L-THIA web은 도시계획가나 지방자치단체, 또는 지방의 공동체가 사용할 수 있도록 쉽고 단순한 사용자 편의 시스템을 제공하고 있으며, 미국의 50개 본토의 주와 카운티(County) 이름으로 기상자료와 수문토양분류(Hydrologic Soil Group)을 인터넷 지리정보시스템을 이용하여 제공하고 있다. 본 연구는 지방자치단체 및 지역공동체의 실무자를 사용자로 수문/수질 평가 및 관리를 위한 시스템으로 유용하게 활용될 수 있을 것으로 사료된다.

오일 함침에 의한 흑연/나일론 복합체의 마찰특성 향상에 관한 연구 (The Study on the Improvement of Friction Properties of Graphite/Nylon Composite by oil-Impregnation)

  • 강석춘;정대원
    • 한국정밀공학회지
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    • 제19권3호
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    • pp.114-122
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    • 2002
  • Electric conductivities, mechanical properties and friction properties were investigated far graphite-nylon composites impregnated with oil. Specific resistivity of composites containing oil from 2% to 6% were in the range of $10^7 ~10^6 \ohm$ cm, which were applicable for anti-static purpose of composites improved by the impregnation of graphite with 2%. Improvement in the impact strength and friction properties of graphite/nylon composites was achieved by the impregnation of oil. The coefficient of friction of the composites containing graphite from 2% to 4% and oil with 2 - 4% showed much loller than that of virgin nylon. Also the abrasive wear of the oil impregnated graphite composites were decreased about 1/3 - 1/10.

Interrelationship of Biological Yield and Harvest Index in Mulberry and Its Association with Shoot Rearing in Silkworm (Bombyx mori L.)

  • Susheelamma, B.N.;Kamble, Chandrakanth;Dandin, S.B.
    • International Journal of Industrial Entomology and Biomaterials
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    • 제4권2호
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    • pp.143-147
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    • 2002
  • Studies on the interrelationship between biological yield and harvest index, and their association with shoot rearing were carried out in 9 promising mulberry genotypes, which indicated significant variations among genotypes. Biological yield had close association with leaf yield components indicating that they are inter-related for higher productivity in mulberry, Biological yield revealed highly significant positive correlation with important leaf yield components. However height of the longest branch showed negative correlation with biological yield. Genotypes with higher biological yield associated with low ratio of stem weight to leaf weight and high Harvest index on dry weight basis are to be selected for shoot rearing. Biological yield recorded on fresh weight basis had less impact on the present study in comparison to dry weight basis.

Impact of Surface Fire on the Dynamics of$N_2$- Fixing and P - Solubilizing Microbial Population in Natural Grassland Soils, Southern India

  • Manian, S.;S. Paulsamy;K. Senthilkumar;Kil, Bong-Seop
    • 한국생태학회:학술대회논문집
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    • 한국생태학회 2002년도 VIII 세계생태학대회
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    • pp.93-100
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    • 2002
  • Dynamics of certain $N_2$fixing bacteria such as Rhizobium, Azospirillum and Azotobactor, nodule number in dominant legume, Atylosia trinervia, P-solubilizing bacteria, actinomycetes and fungi were studied in unburned and burned site of natural grassland, southern India. Population of $N_2$- fixing bacteria, P-solubilizing bacteria, fungi and nodule number in legume increased significantly in burned sites. On the other hand, the actinomycetes population remained unchanged. Thirty six species of fungi with tricalcium phosphate solubilizing ability were recorded. The most efficient P-solubilizing fungi recognised in the soils of the study sites are Absidia ramosa, Gongronella butlerii, Mortieralla spinosa, Mucor racemosus, Rhizopus nigricans, R. stolonifer, R. oryzae, Aspergillus fumigatus, A. nidulans, A. niger Theilavia terricola and Cheatomium lunasporium.

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외부지식 획득성과의 영향 요인에 관한 연구: ERP 패키지 도입업체의 흡수역량 관점 (Success Factors of Knowledge Acquisition: The Absorptive Capacity Perspective on Adopters of ERP Packages)

  • 서현주;김효근
    • Asia pacific journal of information systems
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    • 제12권4호
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    • pp.139-172
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    • 2002
  • Comtemporary firms need capability of acquiring external knowledge and internalizing it to cope with environmental fluctuation. The paper analyzes the impact of absorptive capacity, an ability to recognize and utilize external knowledge, on knowledge acquisition of the firm, and examines the role of trust in the knowledge acquisition process. Data were collected from 84 domestic companies that had adopted ERP packages. The results indicate that prior experiences of knowledge acquisition, communication mechanism, and conflict resolution mechanism affect knowledge acquisition positively. Among those independent variables, communication mechanism and conflict resolution mechanism significantly and positively related with trust. Trust is, in turn, positively associated with knowledge acquisition. Meanwhile, previous knowledge base and prior relationship with the knowledge provider do not affect knowledge acquisition. Further, the results provide evidence that trust plays a mediating role between other absorptive capacity factors and knowledge acquisition.

Dynamic Relationship between Stock Prices and Exchange Rates: Evidence from Chinese Stock Markets

  • Lee, Jung Wan;Zhao, Tianyuan Frederic
    • The Journal of Asian Finance, Economics and Business
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    • 제1권1호
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    • pp.5-14
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    • 2014
  • This paper empirically examines the short-run and long-run causal relationship between stock market prices and exchange rates in Chinese stock markets using monthly data from January 2002 to December 2012 retrieved from the National Bureau of Statistics of the People's Republic of China. Unit root, cointegration tests, vector error correction estimates, block exogeneity Wald tests, impulse responses, variance decomposition techniques and structural break tests are employed. This study found 1) long-run causality from exchange rates to stock prices in Chinese stock markets and 2) short-run causality from Japanese yen and Korean won exchange rates to stock prices in the Shanghai Stock Exchange strongly prevails while in the Shenzhen Stock Exchange weakly prevails. The impact of the global financial crisis from 2007 to 2009 on Chinese stock markets was insignificant.

1차원 충돌 동역학 해석을 이용한 한국형 고속전철의 충돌사고 안전도 평가 (An Evaluation of Crashworthiness on the KHST using 1D Collision Dynamic Analysis)

  • 구정서;조현직
    • 연구논문집
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    • 통권32호
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    • pp.103-111
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    • 2002
  • In this study, the crashworthiness of KHST has been evaluated by analysing a nonlinear spring/bar-damper-mass model of 1-dimensional collision dynamics. The numerical results show that KHST can easily absorb kinetic energy at lower impact force and acceleration in heavy collisions, when compared with KTX. Also, in a Light collision like a traint-to-train accident at lower speed under 8 kph, the carbody and components of KHST can be protected without any damage except the energy absorbing tube to be replaced easily. However, KTX may be much damaged in the light collision because there is no energy absorbing tube. In conclusion, the crashworthy performance of KHST has been much improved than that of KTX, although there are something to be improved for a better crashworthy performance

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야드형 AGV-서스펜션 파라미터의 최적화를 위한 충격하중 해석 (Analysis of Impact Load for Optimum of Suspension Parameter of Yard AGV)

  • 홍도관;김재헌;안찬우;전언찬;김중완
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2002년도 추계공동학술대회논문집
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    • pp.161-167
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    • 2002
  • Cai-go management facility of harbor are required an expansion due to increase of cargo quantity. Design technology of Yard AGV call be possible to deal many cargo rapidly and accurately. So it is produced a profit about cal-go management. This study is presented optimum of suspension parameter for design technology Yard AGV. Model I, II are modeled about Initial of container weight, height. When the maximum stroke of suspension is 0.26m, optimum is achieved to reduce the reaction force at the minimum. Also, the reaction force is study to become stability in I second. A change of spring constant and coefficient of damper make change the reaction force and minimum reaction force appear in optimum value. All modeling and analysis are used combination. contact element of Ansys program.

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