• Title/Summary/Keyword: 연감

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Studies on the Calculating Method of Conditioned Weight by dry Weight after Boiling-off in Raw Silk (생사정량산정에 있어서 연감후 무수량의 도입에 관한 연구)

  • 김수현;이상근;김영진
    • Journal of Sericultural and Entomological Science
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    • v.13 no.1
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    • pp.73-78
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    • 1971
  • The purpose of this study is to find out the method of conditioned weight test by which the dealing weight of raw silk can be calculated from true fiber in order to do the fair trading. The results of this study were as follows. 1. It is more reasonable than the current test that conditioned weight as a dealing weigh can be calculated by boil-off and moisture regain which is a percentage of boil-on and moisture regain to net weight. Because the boil-off and moisture regain can show directly the amount of true fiber and reproductibility in raw silk. In this study the boil-off and moisture regain is to take dry weight after boiling-off from net weight. 2. To calculate the conditioned weight from boil-of and moisture regain it would be proper that the standard additional ratio is 44 per cent of dry weight after boiling-off. 3. Boil-of percent of the sizing sample skein used in the size test did not show a statistical significance comparing with the boil-off percent of sample skeins (24 skeins) which may represent that of a lot. To observe this result boil-off percent of the sizing sample skein may represent that of a lot. 4. In Korea if conditioned weight test substitute for test of boil-off and moisture regain, we make a profit of two billion won in a year at the current market-price.

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The factors related with the weight of a bave. Bombyx mori.(Cocoon layer rate and degumming rate of cocoons in the original silkworms in Korea) (견사량과 관계있는 몇가지 요인에 대하여(보존잠품종별잠견의 견층비율과 연감율조사))

  • 박광의;신원집;남중희
    • Journal of Sericultural and Entomological Science
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    • v.8
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    • pp.63-67
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    • 1968
  • The aim of this treatise was to find out the factors related to the weight of a have in the original silkworm. The results obtained are as follows: 1. There is no relationship between the degumming rate and cocoon layer rate, but there is related with the weight of cocoon only in chinese strain. 2. There is no difference among the strains, but considerably differente in degumming rate among the species. 3. The degumming rate of female is higher than that of male.

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Genetic Analysis of Boiling-off Ratio of Amount of Sericin and Fibroin of Cocoon Layer and from Diallel Crosses of Silkworm, Bombyx mori (누에 이면교잡에 의한 견층 연감율 Sericin량 Fibroin량에 대한 유전분석)

  • 정원복;장권열
    • Journal of Sericultural and Entomological Science
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    • v.29 no.1
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    • pp.31-38
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    • 1987
  • The genetic analysis was caried out on the boiling-off ratio of cocoon layer, and the amounts of sericin and fibroin in the F1 generation from the diallel crosses of silkworm. The result obtained were as follows : 1. Boiling-off ratio and the amounts of sericin adn fibroin in male and female were over dominqnce and partial dominance, respectively. 2. The additive effect of gene was higher then the dominance effect in the amounts of sericin and fibroin in male and female, and in boiling off ration in female. 3. The direction of dominance in the amounts of sericin and fibroin in male and female was positive and that in boiling off ratio negative. 4. The effect of three characters on the combining ability was significant and their general combining ability was higher than the specific combining ability.

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Effect of Silk Size and Deguming Percentage of Raw Silk on the Standard on Silk Fabric. (생사의 섬도와 연감률이 편직물의 규격에 미치는 영향)

  • 남중희
    • Journal of Sericultural and Entomological Science
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    • v.20 no.1
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    • pp.25-28
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    • 1978
  • 견직물중 제직된 이후에 정련을 요하는 후연직물은 우이중 주자 축면등이 있다. 이들 견직물은 그 무게의 범위가 규정되어 있고 만일에 그 규격에 맞지 않는 경우에는 불합격되는 예가 있다. 이러한 무게를 결정하는 주요한 요소는 생사의 섬도, 연감률, 경사ㆍ위사의 밀도 및 경사ㆍ위사의 면도가 좌우하지마는 경사ㆍ위사의 밀도는 견직물종류에 따른 무게에 의하여 일정한 한도가 정해져 있고 축도 역시 견직물의 종류에 따라서 그에 상당하는 축도가 정해져 있으므로 견직물의 무게를 좌우하는 가장 중요한 요소는 생사의 섬도와 연감율이라고 할 수 있다.

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Fundamental Studies on the Boiling off Test of Raw Silk (생사연감검사에 관한 기초시험)

  • 김현수;이덕로;김영진
    • Journal of Sericultural and Entomological Science
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    • v.13 no.1
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    • pp.69-72
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    • 1971
  • 1. To study proper sample size in boiling-of test, we extracted samples in size of 200, 100, 50, 20, and 10 grams and tested them. In the result of this test we couldn't find a statistical significance among them, but it is seemed that the proper sample size is 100 gram to think about the errors of measurement and treatment when the sample size is either too little or too much in ordinary test. 2. We tested boil-of result by twisted sample skein (sizing skein) and untwisted sample. In this test to use sodium carbonate (Na$_2$CO$_3$) having powerful sericin dissolving power as a scouring agent, boil-off percents made no statistical significance between two kinds of sample skein. And to use marseilles soap having less powerful sericin dissolving power as a scouring agent, boil-off percents made a difference between twisted and untwisted sample skein. 3. We compared five kinds of scouring agent, for example sodium carbonate, monogen, synthetic detergent (HiTi), marseilles soap A (made in Japan) and marseilles soap B (made in Korea). Among them synthetic detergent and marseilles soap B showed no statistical significance compared with marseilles soap A which we used in ordinary boil-off test. So synthetic detergent and marseilles soap B can be substituted for marseilles soap A. 4. Generally the higher pH value of boil of solution, tile more sericin dissolution, showed and vice versa.

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분석-세계 주요국 출판시장

  • Korean Printers Association
    • 프린팅코리아
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    • s.39
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    • pp.74-75
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    • 2005
  • 우리나라의 출판시장이 불황을 거듭하고 있는 것과는 대조적으로 세계 주요국ㄱ들의 출판시장은 지난해 소폭이나마 성장한 것으로 나타났다. 대한출판문화협회가 최근 발행한 '2005출판연감'에 따르면 일본 중국 프랑스 러시아 미국에서는 출판시장이 커지고 매출도 증가한 것으로 집계됐다. 다만 독일에서는 불황이 심각한 것으로 분석됐다. 다음은 출판연감에 게재된 각국의 출판동향이다.

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문헌정보

  • KOREA COGENERATION ASSOCIATION
    • 열병합발전
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    • s.35
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    • pp.32-33
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    • 2003
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