• 제목/요약/키워드: kinds

검색결과 22,408건 처리시간 0.037초

PET 필라멘트사의 열응력특성과 열수축율과의 상관성연구 (The Study on Relationship Between Thermal Stress Properties and Thermal Shrinkage of PET Filament Yarns)

  • 김영진;김승진;김태훈;김경렬;박인동
    • 한국염색가공학회지
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    • 제10권2호
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    • pp.45-54
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    • 1998
  • This study surveys relation between thermal shrinkage and thermal stress properties after process simulation of heat treatment with various PET filament yarns. For this purpose, 12 kinds of regular yarns and POY, 6 kinds of DTY and 5 kinds of composite yarns were experimented for investigating step thermal shrinkage, total thermal shrinkage and total thermal stress and maximum thermal stress temperature. Thermal stress and shrinkage of the various specimens treated with wet and dry heats were analysed and discussed with the conditions of heat treatment. finally, relationship between thermal stress and shrinkage of the various PET filaments such as regular yarns, POY, DTY and composite yarns were investigated with the PET filament characteristics.

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Supplier-assembler Network Structure and Capability Improvement of Suppliers in Newly Emerging Vietnam's Motorcycle Industry

  • Pham Truong Hoang;Shusa Yoshikazu
    • 기술혁신연구
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    • 제14권2호
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    • pp.143-165
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    • 2006
  • By analyzing five in-depth case studies of suppliers in newly emerging Vietnam's motorcycle industry, this paper explores the differences in patterns and processes of capability improvement of suppliers who participate in different kinds of supplier-assembler network with different structures. The paper finds the correlation between the kinds of suppliers' capabilities improved and the structure of networks they participate in. While suppliers in arm-length networks can improve more upstream capabilities (structure design, process desist), suppliers in embedded networks can improve more downstream capabilities (process design, process setup, process maintenance and delivery control). Two capability improvement patterns of firms in newly emerging economy are indicated. The first pattern is asymmetrical improvement, either upstream or downstream capabilities, by participating in either arm-length or embedded networks. This pattern obstructs the suppliers to meet the requirements of new buyers rho come from different kinds of network. The second pattern is symmetrical improvement by joining both arm-length and embedded networks.

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시험편 형상에 따른 ETFE 필름재의 인장 특성 (Tensile Characteristics of ETFE Film According to the Specimen Type)

  • 김승덕;주석범;장명호;이정현
    • 한국공간구조학회논문집
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    • 제17권4호
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    • pp.159-165
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    • 2017
  • In this paper, uniaxial tensile tests of ETFE films with three kinds of thicknesses(100, 200, $250{\mu}m$) and two kinds of directions(machine direction & transverse direction) are performed and the tensile strength, the tensile strain at break and the Young's modulus of ETFE films are compared for two kinds of specimen types(2 & 5). It could be figured out that there are no significant difference between tensile strengths of two specimen types but the tensile strain at break and the Young's modulus of ETFE films are affected by the specimen types. And it is concluded that the uniaxial tensile test of specimen type 2 are more reliable than that of specimen type 5.

골재의 종류에 따른 고강도 콘크리트의 시공 특성에 관한 기초적 연구 (A Fundamental Study on the Workability of High Strength Concrete according to Kinds of Aggregate)

  • 최희용;김규용;최민수;김진만;심옥진;김무한
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 1996년도 봄 학술발표회 논문집
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    • pp.12-17
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    • 1996
  • It is true that aggregate strength is usually not a factor in normal concrete strength because, the aggregate particle is several times stronger than the matrix and the transition zone in concrete. In other words, with most natural aggregates the strength of the aggregate is hardly utilized because the failure is determined by the other two phases. But aggregate characteristics that are significant to concrete technology include porosity, grading or size distribution, moisture absorption, shape and surface texture, crushing strength, elastic modulus, and the type of deleterious substances present. Therefore, in the area of high strength concrete, concrete is much more influenced by properties of aggregate. This experiment is performed to investigate how kinds of aggregare influence on the workability of high strength concrete. In this experiment, four types of aggregate is used, that is crushed river aggregate, crushed stone, recycled aggregate of low strength and recycled aggregate of high strength. In this study, we scrutinize a fundmental study on the workability of high strength concrete according to kinds of aggregate.

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SCALARIZATION METHODS FOR MINTY-TYPE VECTOR VARIATIONAL INEQUALITIES

  • Lee, Byung-Soo
    • East Asian mathematical journal
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    • 제26권3호
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    • pp.415-421
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    • 2010
  • Many kinds of Minty's lemmas show that Minty-type variational inequality problems are very closely related to Stampacchia-type variational inequality problems. Particularly, Minty-type vector variational inequality problems are deeply connected with vector optimization problems. Liu et al. [10] considered vector variational inequalities for setvalued mappings by using scalarization approaches considered by Konnov [8]. Lee et al. [9] considered two kinds of Stampacchia-type vector variational inequalities by using four kinds of Stampacchia-type scalar variational inequalities and obtain the relations of the solution sets between the six variational inequalities, which are more generalized results than those considered in [10]. In this paper, the author considers the Minty-type case corresponding to the Stampacchia-type case considered in [9].

Analysis of flavonoids in the mature fruit of Vaccinium uliginosum L. of China

  • Hua, Lian Li;Yoshitama, Kunijiro
    • Advances in Traditional Medicine
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    • 제6권1호
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    • pp.65-67
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    • 2006
  • In this study, a new extraction method was developed and two kinds of flavonoids were extracted from the mature fruit of Vaccinium uliginosum L. of China. These two kinds of flavonoids were analyzed by spectral and identified by high-performance liquid chromatography (HPLC) and UV/Vis. The extract of the fruit was total acid hydrolyzed. TLC chromatography was subsequently employed to identify the hydrolysate. Two kinds of aglycone flavonoids, quercetin and myricetin, were identified. At the same time PC chromatography was used to identify the monomer sugar in the flavonoids and it was verified as glucose. HPLC, UV/Vis, and Mass spectrum analyses revealed that the flavonoids were quercetin 3-monoglucosides and myricetin 3-monoglucosides.

관류형팬의 설계변수 특성에 관한 연구 (A Study on Characteristics of Design Parameters for In-line Duct Fan)

  • 박진욱;허종철;이철형;박완순
    • 유체기계공업학회:학술대회논문집
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    • 유체기계공업학회 2005년도 연구개발 발표회 논문집
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    • pp.373-377
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    • 2005
  • The Performance of in-line duct fan depends on the design parameters of impeller and guide vane. such as sweep back angle of impeller, the number of blades, outlet blade angle, guide vane angle etc. In this experimental study total four kinds of impellers having different sweep back angles, $90^{\circ},\;72.5^{\circ},\;55^{\circ},\;37.5^{\circ}$ with 8 guide vanes, different the number of blades, 6ea, 8ea, 10ea, 12ea, different kinds of outlet blade angles, $30^{\circ},\;45^{\circ}.\;60^{\circ}$ and different kinds of guide vane angles, $15^{\circ},\;30^{\circ},\;45^{\circ}$ were selected and their performance measured to investigate the effects of them. The results were non-dimensionalized to compare their performance.

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해독약물(解毒藥物)에 대(對)한 문헌적(文獻的) 고찰(考察) (Bibliographic Study on the Detoxicational Drugs)

  • 김강산;강병기
    • 대한한방내과학회지
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    • 제15권2호
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    • pp.70-108
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    • 1994
  • The kinds and remedies of intoxication were investigated throughout total 22 books of oriental medicine. The results are as follows 1. The kinds of intoxication were 91, most of which were plant intoxications and animal intoxications. 2. The kinds of detoxication medicines was 203, the most popularly prescribed of which were Radix Glycyrrhizae Semen Glycine. 3. The prescribed medicines were most nonpoisonous ones, but some of them were poisonous. 4. The medicines with Han seong(寒性) were most popularly prescribed. The ones with On seong(溫性), Pung seong(平性), Youl seong(熱性), Yang seong(凉性) follows 5. The most popularly prescribed medicine was sweet taste(甘味). The nest ones were pungent taste(辛味), bitter taste(苦味), sour taste(酸味), salty taste(鹹味). 6. The most popularly prescribed medicine was Chung Youl(淸熱) medicines.

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증국 운남성 백족의 음식문화 (Food of China Yunnan Baizu)

  • 신계숙
    • 한국식생활문화학회지
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    • 제15권3호
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    • pp.225-232
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    • 2000
  • The Purpose of this study was to understand the China Yunnan Baizu food. This study was performed a visit market based on in- depth interview with food experts those who lived in Baizu province. The results were summarized as follows. The main food of Baizu were Bab, Dduk(BaBa), Nuddle(Mi xian) made from rice. They ate all kind of food from vegetables, fish, and pork, but the remarkable thing was that there were practical limit to select the ingredient. They would use some fermented products such as Pao-chai, Yan-chai, Zha. Pao-chai was fermented vegetables like Kimchi, Yan-chai was similar with Changachi in Korea, and Zha was prepared from meat and fish. Menus for Banquets were included 8 kinds of cold appetizer, 8 kinds of hot dishes, and 2 kinds of sweet desserts. The ingredients were local products and they considered hot, sour, cold taste importantly. The method of cooking was simple and Rusan, Sengpi was the most traditional Baizu food. Ru san is one of dishes prepared from the milk, and milk pedimented product. Sengpi was uncooked pork.

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관상감활자고 (A Study on Kwansanggam Type)

  • 김상호
    • 한국문헌정보학회지
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    • 제14권
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    • pp.131-148
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    • 1987
  • The Yi-Dynasty published the calendars printed by means of woodblock and typeprinting for the purpose of informing its people of four seasonal changes and appropriate time for farming. The printing types were used to publish the calendars in those days varied depending upon the kinds of the calendars, but all those types are known as only one name: Kwansanggam Type. This is because there have been little studies on the different kinds of printing types. As a result, there are many cases where the libraries make erroneous notes in their catalogues. This study points up the fact that four different kinds of Kwansanggam Type were used depending upon the nature of the calendars. For classification purpose, I call these types Daetongryokja, Naeyongsamsoja, Myongsiryokja, and Chiljongryokja. What has not been revealed in this study can be further explained as the more calendars of those days are found out.

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