• Title/Summary/Keyword: Technology Spread

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Detection of Quantitatively Spread Movement of Atom on the Oxygen Generator

  • Kim, Jeong-lae;Seo, Ji-yeon;Jeong, Hyun-woo
    • International Journal of Advanced Culture Technology
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    • 제8권4호
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    • pp.294-298
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    • 2020
  • We was constructed of the spread movement with tremor layer point by the tractile-dot structure that was analyzed the squirm quake forms of the perception movement on the atom liquid. Algorithm of squirm quake forms was used to move the spread tremor on the atom state. To detect the tiny signal, we compared the association average value of the squirm quake form on the atom state. Their subject were issued the valuation standard and perception movement for basic atom condition by the spread tremor. We take to detect the tiny scores of average during perception movement side from the spread tremor that magnetic condition get to a variation of the Ma-αAVG and Ma-αMAX-MIN with 6.25±0.35 units, that electric condition get to a variation for the El-αAVG and El-αMAX-MIN with 5.68±0.42 units. The spread tremor was to investigate the capacity of the tremor form, to uptake a spread data of spread tremor level on the CCPL that was denoted the calm-classification form by the spread perception level system. As the squirm quake forms was demanded by the spread tremor signal, max-average values of perception movement were checked the spread position for association average data. We make mention of squirm quake forms for a signal association and a quake data signal of relation system.

폭연신계수를 이용한 플랜지단조의 초기형상설계 (preform Design by Use of Spread Coefficient for Flange Forging)

  • 김진영;박종진
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 1995년도 추계학술대회논문집
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    • pp.157-166
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    • 1995
  • A large crank shaft for ship engine consists of several components, such as throw, jornal, pin and flange. These compoents are individually made by open-die forging followed by machining and they are thermally fitted to form the crankshaft. In the present investigation, it was attempted to design an optimum preform for the throw by use of the spread coefficient. The spread coefficient found in the literature was confirmed by comparison with experimental results using plasticine. However, the preform designed by the spread coefficient was unable to produce the final product. The reason was found that the spread coefficient differs distinctly for the magnitude of bite ratio. Therefore, another spread coefficient, especially for low bite ratios, was proposed and the preform was redesigned. It was found that the new preform was able to produce the final product.

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청국장의 물성 변환에 대한 연구 (Studies on the Change in Rheological Properties of Chungkook-jang)

  • 이부용;김동만;김길환
    • 한국식품과학회지
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    • 제23권4호
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    • pp.478-484
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    • 1991
  • B. natto, B. subtilis이 두 가지 균주를 단독 또는 혼합균주로 발효시킨 청국장의 일반성분 및 효소활성을 조사하여 아미노태 질소량이나 수용성단백질 함량, 효소활성능이 높게 나타난 발효조건의 청국장 건조시킨 뒤 일정한 입자크기로 선별한 분말에 대해 수분함량과 유지의 종류와 양을 달리하여 제조한 청국장 spread의 점도, 퍼짐성, 색도변화 등을 조사하였다. 청국장 spread의 수분함량이 증가함에 따라 전체적으로 점도는 감소하였고, 퍼짐성은 향상되었으며, 색도 중 L값이 증가하였다. 유지를 첨가하여 spread를 제조했을 때에는 수분첨가시와 반대로 점도가 증가하여 퍼짐성이 감소하였으며, 색도 중 L값도 감소하였는데, 특히 콩기름보다 팜올레인유 첨가시 점도가 더 크게 증가하였다. 청국장 spread의 온도가 증가할수록 점도는 감소하여 퍼짐성은 향상되는 것으로 나타났으며, 동일온도에서 청국장 Spread 점도는 B. natto 혼합균주, B. subtilis를 접종한 순으로 증가하였다.

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설탕의 粒子 크기와 使用量이 쿠키의 展性이 미치는 影響 (Effect of Sugar Particle Size and Level on Cookie Spread)

  • 고원방;노완섭
    • 동아시아식생활학회지
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    • 제7권2호
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    • pp.159-165
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    • 1997
  • The primary objective of this study was to learn the effect of various sugar particle size and level on cookie spread, The effect of sugar particle size and level on sugarsnap cookie spread was studied. Three different particle sized sugars; powered sugar, granulated sugar and sanding sugar, were used for the cookie test baking with five different sugar levels; 30, 45, 60, 75 and 90% based on the weight of flour. In mixing process, 5 minutes of creaming time was used for cream making and then the specific gravity of cream was measured on the basis of each different sugar particle size and level. In the result, the specific gravity of cream was influenced by sugar particle size and sugar level. However, the specific gravity of cream had no influence on cookie dough specific gravity. Cookie spread was influenced by sugar particle size and sugar level. Greater cookie spread was obtained by decreasing sugar particle size and increasing sugar level resulted in increased spread. Therefore, selection of suitable sugar particle size and its use level can be factors in controlling spread and imparting desired packaging characteristics.

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법정인증제도의 확산패턴과 기업성장에 미치는 영향 (The Spread Pattern of Korean Legal Certification Systems and Their Impact on Industry Performance)

  • 최갑홍;신완선;신준석;박재연
    • 품질경영학회지
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    • 제41권1호
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    • pp.1-14
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    • 2013
  • Purpose: The purpose of this research was to investigate the spread pattern of Korean legal certification systems and their impact on industry performance. Methods: It first analyzes the life cycle of legal certification systems and classifies them into four categories based on the spread patterns in a chronological view. A survey study is then conducted to find out the impact of legal certification systems on financial performance. Both the legal mandatory certification systems and the legal voluntary certification systems are included in the survey. Results: Four spread patterns of legal certification systems are sustainable growth, stagnation after growth, decrease after growth, and repetition of growth and declination. 56% of 293 certified corporations responded positively about the financial impact of their certification systems. Conclusion: The policy makers can utilize the results of this study in designing additional certification systems as well as promoting the current legal certification systems.

탄소섬유 펼침 기술 및 이를 적용한 적층 복합재료의 기계적 특성 (Carbon Fiber Tow Spreading Technology and Mechanical Properties of Laminate Composites)

  • 박성민;김명순;최윤성;이은수;유호욱;천진성
    • Composites Research
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    • 제28권5호
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    • pp.249-253
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    • 2015
  • 본 연구는 탄소섬유 펼침 기술을 이용한 적층 복합재료의 특성을 평가하였다. 섬유 펼침 기술이 적용되어 기존 12 K 탄소섬유 토우의 폭이 7 mm에서 20 mm로 늘어나면서 두께가 더 얇아졌다. 폴리프로필렌 필름을 spread tow에 함침시켜 프리프레그를 만들고 이를 적층 후 열압축 성형을 통해 시편을 제조하였으며 이들의 기공함유량 및 인장, 굴곡 시험을 통해 물리적, 기계적 물성을 평가하였다. 그 결과, 탄소섬유 펼침 기술이 적용된 적층 복합재료의 기공함유량이 기존의 섬유 토우를 사용한 것보다 작게 나타났고, 섬유함유량이 낮았음에도 불구하고 기계적 물성이 향상됨을 알 수 있었다.

Emergency Management on Internet Spread of Social Events

  • Dai, Weihui;Wang, Chunshi;Zhang, Yuan
    • Journal of Information Technology Applications and Management
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    • 제18권1호
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    • pp.41-53
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    • 2011
  • The rapid development and widespread application of Internet has provided a platform for people to participate and discuss social hotspot events. In the meantime, social events may be spread throughout the Internet more quickly and widely than they did ever before, and possibly lead to serious social problems due to opinion violence or seditious rumour. This paper analyzed the Internet spread of social events, and presented a five-stage model to describe the evolution process of that spread. Furthermore, the improved IBF algorithm was applied to extract a pruned connected graph aiming to find the key nodes and the shortest spread path for the control of that spread. After analyzing the different factors that may cause the netizens' attention, this paper concluded BBS type, the visit quantity and the opinion leader are key factors which affect the Internet spread. Based on those researches, a life-cycle emergency management methodology and the related strategies were proposed for the achievement of healthy spreading environment on Internet.

The Measurement of the Mosaic Spread of the Single Crystal

  • Lee, Yun-Peel
    • Nuclear Engineering and Technology
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    • 제5권3호
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    • pp.185-190
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    • 1973
  • 단결정의 mosaic spread를 측정하는 방법 한가지를 제안하였다. 이 방법을 사용해서 하나의 단결정체의 mosaic spread를 측정하고 이 간을 토대로 다른 단결정체의 mosaic spread를 양축 단결정회절 장치를 이용하여 Caglioti의 방법으로 측정하였다. 동일한 단결정체에 관한 실험을 분말회절 장치를 이용하는 Epstein의 방법을 사용하여 두가지 방법을 비교할 목적으로 재차 수행하였다.

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Simulation and Analysis of Wildfire for Disaster Planning and Management

  • Yang, Fan;Zhang, Jiansong
    • 국제학술발표논문집
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    • The 9th International Conference on Construction Engineering and Project Management
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    • pp.443-449
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    • 2022
  • With climate change and the global population growth, the frequency and scope of wildfires are constantly increasing, which threatened people's lives and property. For example, according to California Department of Forestry and Fire Protection, in 2020, a total of 9,917 incidents related to wildfires were reported in California, with an estimated burned area of 4,257,863 acres, resulting in 33 fatalities and 10,488 structures damaged or destroyed. At the same time, the ongoing development of technology provides new tools to simulate and analyze the spread of wildfires. How to use new technology to reduce the losses caused by wildfire is an important research topic. A potentially feasible strategy is to simulate and analyze the spread of wildfires through computing technology to explore the impact of different factors (such as weather, terrain, etc.) on the spread of wildfires, figure out how to take preemptive/responsive measures to minimize potential losses caused by wildfires, and as a result achieve better management support of wildfires. In preparation for pursuing these goals, the authors used a powerful computing framework, Spark, developed by the Commonwealth Scientific and Industrial Research Organization (CSIRO), to study the effects of different weather factors (wind speed, wind direction, air temperature, and relative humidity) on the spread of wildfires. The test results showed that wind is a key factor in determining the spread of wildfires. A stable weather condition (stable wind and air conditions) is beneficial to limit the spread of wildfires. Joint consideration of weather factors and environmental obstacles can help limit the threat of wildfires.

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열간압연시 폭퍼짐 보상을 통한 폭정밀도 개선연구 (Precise width control through the width spread compensation in hot strip mill)

  • 천명식;이준정;문영훈
    • 소성∙가공
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    • 제8권2호
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    • pp.200-207
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    • 1999
  • To increase dimensional accuracy of strip width, model to compensate width spread during roughing mill has been developed. To measure the amount of width spread during the production rolling more precisely, special roughing rolling procedures for the horizontal rolling and dog-bone rolling were designed in the actual production mill. From the operational data analysis, it is known that the prime factors influencing on the width spread were strip width, strip thickness, edging amount, number of pass and type of edger roll etc., Based upon the statistical analysis of rolling data, new models which can predict width spread during horizontal rolling and dog-bone rolling were developed and tested on the actual processing conditions for the reliability. The application test showed that newly developed model gave fairly accurate predictions on the width spread during roughing passes.

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