• 제목/요약/키워드: orientation distribution

검색결과 622건 처리시간 0.03초

섬유강화 고분자 복합재료의 사출성형에 있어서 웰드부의 섬유배향에 미치는 금형형상의 영향 (The Effect of Mold Shapes on the Fiber Orientation of Welding Parts for Injectin Molding of Fiber Reinforced Polymeric Composites)

  • 강명구;최유성;김혁;이동기;한길영;김이곤
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2000년도 추계학술대회 논문집
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    • pp.457-460
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    • 2000
  • Injection molding is the most widely used process for the industrial forming of plastic articles. During an injection molding process of composites, the fiber-matrix separation and fiber orientation are caused by the flow of molten polymer/fiber mixture. As a result, the product tends to be nonhomogeneous and anisotropic. Hence, it is very important to clarify the relations between separation·orientation and infection molding conditions. So far, there is no research on the measurement of fiber orientation using image processing. In this study, the effects of fiber content ratio and molding condition on the fiber orientation-angle distributions are studied experimentally. Using the image processing method, the fiber orientation distribution of welding parts in injection-molded products is assessed. And the effects of fiber content and injection mold shapes on the fiber orientation in case of fiber reinforced polymeric composites are studied. experimentally.

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육방정 Si-폐라이트의 자기적 특성에 미치는 입도 분포의 영향 (Effects of Particle Size Distribution on The Magnetic Properties of Hexagonal Sr-Ferrite)

  • 송창열;신용덕
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1994년도 하계학술대회 논문집 C
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    • pp.1314-1316
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    • 1994
  • $0.36[wtx]Sio_2$ and $0.1[wtx]H_3BO_3$ were added to strontium ferrite magnets of the magnetoplumbite phase SrO $5.7Fe_2O_3$. This experiment was carried out to investigate the effects of particle size distribution as a function of milling time(20,30,40,50,60,70 hours) on the magnetic properties of SrO $5.7Fe_2O_3$ ferrite magnet. The B-H Curve, density and the degree of orientation were measured. The optimal conditions of making magnets and properties of a typical sample are the following : The milling time was 60 hours. Magnetic and physical properties are $B_r$=4000[G], $_BH_c$=3330[Oe], $_IH_c$=3525[Oe], (BH)max=3.786 [MGOe], density= $5.0063g/cm^2$, orientation factor f=0.813.

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변형속도에 따른 M1 마그네슘 합금의 고온변형 중 미세조직 형성 거동 (Effect of Strain Rate on Microstructure Formation Behavior of M1 Magnesium Alloy During High-temperature Deformation)

  • 이규정;김권후
    • 열처리공학회지
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    • 제32권1호
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    • pp.1-11
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    • 2019
  • In this study, microstructure evolution and crystallographic orientation are investigated under various deformation conditions in M1 magnesium alloy. M1 magnesium ingot was rolled at 673 K with the rolling reduction of 30%. The compression test specimens were machined out from rolled plate, and then the specimens were annealed at 823 K for 1h. Uniaxial compression tests were conducted at 723 K and under the strain rate ranging from $5.0{\times}10^{-4}s^{-1}$ to $5.0{\times}10^{-2}s^{-1}$ up to a true strain of -1.0. For observation of crystal orientation distribution, EBSD measurement was performed. Occurrence of the dynamic recrystallization and grain boundary migration were confirmed in all case of the specimens. The distribution of the grains is not uniformed in the experimental conditions.

섬유 분포에 따른 ECC 1축 인장 거동 (Uniaxial Tension Behavior According to the Distribution of Fiber Orientation)

  • 이방연;김윤용;김진근;남관우
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2009년도 춘계 학술대회 제21권1호
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    • pp.531-532
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    • 2009
  • 이 논문에서는 섬유 분포 특성을 반영하여 균열 간격을 계산할 수 있는 수식을 유도하고, 이를 바탕으로 ECC의 1축 인장 거동을 예측하였다. 예측 결과와 실험 결과는 약 10% 오차가 발생하였다.

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판매원 브랜드 관계, 고객 지향성 및 고객 점포 충성도에 관한 연구 (A Study on Salesperson Brand Relationships, Customer Orientation, and Customer Store Loyalty)

  • 최순화
    • 유통과학연구
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    • 제16권11호
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    • pp.57-64
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    • 2018
  • Purpose - As the importance of salesperson attitudes and behaviors enhancing customer perception and loyalty have increased, many retail companies put emphasis on internal marketing activities. The issue also has captured the interest of academics, but most of the previous research tends to be limited to investigating antecedents of salesperson job satisfaction and commitment. Based on the consumer-brand relationship concepts, this study aims to examine the effects of the salesperson-brand relationships on customers' service evaluation and store loyalty. Research design, data, and methodology - In a structural equation model, it is hypothesized that salesperson brand identification influences salespersons' brand trust and affect, which are the two dimensions of consumer-brand relationships. Salespersons' brand trust and affect are expected to increase salespersons' customer orientation, which in turn influences customers' service evaluations and store loyalty. To test this hypotheses a set of data collected from department stores in Seoul is utilized. Results - First, it was found that salesperson brand identification is a significant antecedent to salespersons' brand trust and affects, the two dimensions of salesperson brand relationships. Second, salespersons' brand trust and affect were found to enhance salespersons' customer-oriented behaviors. Third, salespersons' customer orientation showed a significant effect on customers' service evaluation. When a salesperson makes more effort to provide useful information for fulfilling customer needs, customers evaluate the salesperson's service more positively. Finally, customers' service evaluation had a positive impact on customers' store loyalty. Conclusions - This study provides significant academic and practical implications. First, based on the theory of consumer-brand relationships, the concept of salesperson-brand relationships was introduced and found to be an effective motivator of salespersons' customer oriented attitudes and behaviors. Therefore, the two dimensions of brand relationships, brand trust and affect, should be considered as the critical factors both in developing theoretical research and improving long-term company performance. Also, internal marketing activities should focus on maximizing employees' brand identification. That is, retail companies need to put emphasis on sharing their brand values and personality with internal customers to strengthen the brand relationships with salespersons and to enhance customer responses.

5령 누에에 있어서 Fibroin 생합성의 특성 (Characterization of Fibroin Biosynthesis in the 5th Instar of Bombyx mori)

  • 이인전;여주홍
    • 한국잠사곤충학회지
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    • 제38권2호
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    • pp.180-185
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    • 1996
  • 가잠 실크 피브로인의 아미노산 조성 중 가장 많은 비율을 차지하고 있는 Glycine에 동위체 라벨링([1-13C]-Gly)을 실시하여 5령 1일째부터 고치를 지을 때까지의 생합성의 상태를 NMR법을 이용하여 추적하였다. 그 결과 5령 5일을 기준으로 가잠 실크의 결정부분을 형성하는 아미노산이 형성은 되나 실크의 결정부분을 형성하는 아미노산이 형성은 되나 실크가 되었을 때 결정성의 고배향 구조를 이루지 못하고 결정성의 저배향 구조를 형성하고마는 형태로 된다고 생각되어 졌다. 이 사실은 배향시료의 고체CP-NMR 스펙트럼의 피크 분리로부터 확인할 수 있었다. 그 결과 수소결합에 관여하는 N-H의 방향이 거의 수직이라고 할 수 있는 83˚의 분자축 부분이 18˚의 고배향 분포를 이루면서 82% 존재하고, 또 나는 N-H의 결합방향이 60˚인 분자축 부분이 18% 존재하면서 62˚의 배향분포를 이룬다고 하는 시뮤레이션의 결과로 설명되어졌다.

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상위판매원의 변혁적 리더십이 하위판매원의 기업가적 성향, 시장지향성 및 성과에 미치는 영향 (The Influences of Up-line Distributors' Transformational Leadership on Down-line Distributors' Entrepreneurship, Market Orientation and Performance)

  • 성백순;임영균;김정식
    • 한국유통학회지:유통연구
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    • 제15권3호
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    • pp.35-69
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    • 2010
  • 다단계판매 기업은 다수의 판매원 네트워크를 통해 의해 제품이나 서비스를 판매하기 때문에 이들과의 성공적 관계 관리가 기업의 성과와 성장을 결정짓는 핵심요인이다. 본 연구는 다단계판매 기업을 대상으로 상위판매원의 변혁적 리더십이 하위판매원의 기업가적 성향, 시장지향성과 성과에 미치는 영향을 분석하고 있다. 국내 최대 다단계판매 기업의 135명의 하위판매원을 대상으로 한 설문자료의 분석 결과, 상위판매원의 변혁적 리더십은 하위판매원의 기업가적 성향과 시장지향성에 긍정적인 영향을 미치며, 하위판매원의 시장지향성은 하위판매원의 성과에 긍정적인 영향을 미치는 것으로 확인되었다. 상위판매원의 변혁적 리더십은 하위판매원의 기업가적 성향은 높이지만 하위판매원의 성과와 직접적인 관련을 맺지는 않는 것으로 나타났다. 또한 하위판매원의 기업가적 성향은 하위판매원의 시장지향성을 통해 하위판매원의 성과를 높여주는 것으로 나타났다. 본 연구는 다단계판매업에서의 상위판매원의 하위판매원에 대한 변혁적 리더십의 중요성을 확인하고 있으며, 이를 근거로 향후 리더십 관련 연구 및 기업경영과 관련한 시사점을 제시하고 있다.

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Sectional corner matching for automatic relative orientation

  • Seo, Ji-Hun;Bang, Ki-In;Kim, Kyung-Ok
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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    • pp.74-74
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    • 2002
  • This paper describes a corner matching technique for automatic relative orientation. Automatically matched corner points from stereo aerial images are used to a data set and help to improve automation of relative orientation process. A general corner matching process of overall image to image has very heavy operation and repetitive computation, so very time-consuming. But aerial stereo images are approximately seventy percent overlapped and little rotated. Based this hypothesis, we designed a sectional corner matching technique calculating correlation section by section between stereo images. Although the overlap information is not accurate, if we know it approximately, the matching process can be lighter. Since the size of aerial image is very large, corner extraction process is performed hierarchically by creating image pyramid, and corners extracted are refined at the higher level image. Extracted corners at the final step are matched section by section. Matched corners are filtered using positional information and their relation and distribution. Filtering process is applied over several steps because the thing affecting to get good result-good relative orientation parameter- is not the number of matched corner points but the accuracy of them. Filtered data is filtered one more during the process calculating relative orientation parameters. When the process is finished, we can get the well matched corner points and the refined Von-Gruber areas besides relative orientation parameters. This sectional corner matching technique is efficient by decreasing unnecessarily repetitive operations and contributes to improve automation for relative orientation.

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패션 크리에이터의 혁신성과 매력성이 소비자 반응 및 지속적 관계지향성에 미치는 영향 - 1인 미디어를 중심으로 - (The effects of fashion creators' innovativeness and attractiveness on consumer response and orientation toward a sustainable relationship - Focusing on personal media -)

  • 이은진
    • 복식문화연구
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    • 제30권1호
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    • pp.121-144
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    • 2022
  • This study analyzed the effects of fashion creators' innovativeness and attractiveness on consumer response and orientation toward a sustainable relationship in personal media. A survey was conducted with consumers aged in their 20s and 30s who had experience in sharing video content or writing comments and participating in fashion creators' real-time broadcasting of personal media. The results show that the innovativeness of fashion creators was classified into originality, opinion leadership, variety, and adventurous spirit, while attractiveness was classified into physical, social, and professional attractiveness. Consumer responses were classified into either emotional or cognitive responses, and sustainable relationship orientation was classified into communication, sharing, and relationship sustainability. The originality and variety of the fashion creators positively affected the emotional and cognitive responses of consumers. Adventurous spirit positively affected emotional response, whereas opinion leadership positively affected cognitive response. In addition, the social and professional attractiveness of fashion creators positively affected consumers' emotional and cognitive responses. Emotional and cognitive responses positively affected consumers' sustainable relationship orientation. The originality and opinion leadership of the fashion creators positively affected the three factors of sustainable relationship orientation, while variety positively affected communication and relationship sustainability. Fashion creators' social and professional attractiveness positively affected the three factors of sustainable relationship orientation, and physical attractiveness positively affected relationship sustainability. The results of this study are expected to provide useful data on the direction of fashion startups using personal media and marketing as well as distribution strategies in the fashion industry.