• Title/Summary/Keyword: 이중 공동

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X-선에 의한 가공용 감자 내부 결함 특성 분석

  • 강석원;손재룡;이강진
    • Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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    • 2003.10a
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    • pp.144-145
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    • 2003
  • 감자는 전세계 대부분의 국가에서 재배되고 있는 세계 4대 주곡 작물인 동시에 스낵류 시장에서도 중요한 부분을 차지하고 있다. 우리나라의 감자 가공산업은 1990년대 초부터 활기를 띠기 시작여하 현재 2,000억불의 매출을 달성하고 있다. 이중 우리나라 농민이 직접 생산한 감자를 원료로 사용하는 천연칩 감자 가공산업은 매출액을 기준으로 144억 (1997년)에서 700억 (2001년)으로 과거 10년 동안 괄목할 만한 성장을 하였다. 우리나라의 연간 감자 칩 원료용 가공용 감자 소요량은 총 51,600톤 (2002 년)으로 그중 40,600톤은 국내생산량으로 충당하고 나머지는 냉동감자를 수입하여 처리하고 있다. 가공원료용 감자는 괴경의 크기나 모양과 같은 외부품질과 환원당이나 고형분 함량과 같은 내부품질이 좋아야 한다. 하지만 가공용 감자의 내·외부품질이 좋게 판정되어도 내부갈색반점이나 중심공동과 같은 괴경 생리장해가 발생하면 원료용 감자로서의 상품 가치가 상실된다. 국내 칩 가공원료용 감자는 봄재배에서는 약 5 ∼ 7 %, 여름재배에서는 10 ∼ 15 %의 괴경 생리장해가 발생되고 있다. 현재 위와 같은 생리장해는 가공공장에서 감자를 잘라서 골라내거나 감자 칩을 만든 후 제거하는 방법을 쓰고 있다. 이에 감자를 수확 후 감자칩으로 가공하기 전에 생리장해가 발생한 감자를 제거하여 생산 공정에서의 불필요한 가공을 줄일 수 있는 방법이 개발되어야 할 필요성이 증대되고 있다. 최근, 농산물의 비파괴적 품질 평가와 선별에 있어서 가장 실용적이고 성공적인 기술 중의 하나는 농산물의 광학적 성질을 이용한 전기-광학 기술이다. 그중 X-선과 같이 파장이 짧은 방사 에너지는 대부분의 농산물을 투과하여 내부의 질량 밀도의 변화와 상관관계를 갖는 품질 인자를 비파괴적으로 평가하는데 적합하나 아직 국내에선 X-선을 이용한 가공용 감자의 내부 결함특성에 대한 연구는 이뤄지지 않고 있다. 이에 본 연구에서는 가공용 감자의 내부결함 특성중 하나인 내부동공의 X-선에 의한 특성을 본 연구소에 있는 X-선 발생장비로 측정해 보고 비파괴적인 방법으로 실시간 가능성을 시험하였다. 감자는 수원 농산물 도매시장에서 2003년산 가공용 감자 (품종:선농)를 구매하여 사용하였다. 감자내 내부동공은 35 ∼ 40 kV와 5.25 mA값으로 발생된 X-선에 의해 잘 검출되는 것으로 나타나, 현장에서 충분히 활용가능 할 것으로 판단되었다. 금후, 실시간으로 내부동공을 검출할 수 있는 시스템을 개발할 계획이다.

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Design of RISC-based Transmission Wrapper Processor IP for TCP/IP Protocol Stack (TCP/IP프로토콜 스택을 위한 RISC 기반 송신 래퍼 프로세서 IP 설계)

  • 최병윤;장종욱
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.8 no.6
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    • pp.1166-1174
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    • 2004
  • In this paper, a design of RISC-based transmission wrapper processor for TCP/IP protocol stack is described. The processor consists of input and output buffer memory with dual bank structure, 32-bit RISC microprocessor core, DMA unit with on-the-fly checksum capability, and memory module. To handle the various modes of TCP/IP protocol, hardware-software codesign approach based on RISC processor is used rather than the conventional state machine design. To eliminate large delay time due to sequential executions of data transfer and checksum operation, DMA module which can execute the checksum operation along with data transfer operation is adopted. The designed processor exclusive of variable-size input/output buffer consists of about 23,700 gates and its maximum operating frequency is about 167MHz under 0.35${\mu}m$ CMOS technology.

A Study on the Values and Practices of the Extreme Programming for Its Adoption (극한프로그래밍 방법론 도입을 위한 가치와 실천에 대한 연구)

  • Lee, Sang-Hyun;Lee, Sang-Joon
    • Journal of the Korea Society of Computer and Information
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    • v.13 no.7
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    • pp.269-280
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    • 2008
  • The choice of appropriate methodologies has always been a challenge. It is time to find obstacles when Extreme programming(XP) is adopted. In this paper, we invest status of adoption of XP methodology which is more popularized. We survey how the Values and the Practices of XP can be adopted to developer in terms of the usefulness and the easy of use of XP. As a result, it is regarded as a successful one in improving quality and timeliness through software development process. The Values and Practices, a basis of XP philosophy and its adoption, could be easily accomplished, but other elements - communication, feedback. collective ownership, pair programming, simple design and customer participation - which do not depend on technology could not be accomplished easily. To introduce XP easily in the creative and labor intensive software development fields, the managers and the educators have to make efforts to apply these Values and Practices based on humane characteristics as well as technical elements.

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Experience of Case Management Practice for the housing vulnerable group living in public low-income housing in Seoul (주거취약계층 매입임대주택의 사례관리자 경험)

  • Min, So-Young;Kim, Soyoung
    • Korean Journal of Social Welfare Studies
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    • v.49 no.1
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    • pp.263-296
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    • 2018
  • The purpose of this study is to examine the experience of case management practice for residents of low - income housing. The importance of the house for the vulnerable residents with homelessness is absolute, and case management that supports them to live as residents in the community is also very important. Nevertheless, the research so far has focused on the supply of affordable housing, the residential environment, the quality of life of the tenants, and the health, but there was a lack of interest in case management practices. In this study, we investigated the experience of case management practice by listening 10 case managers's experiences through FGI interview. As a result of the study, the case manager's experience is divided into four themes: 'Dilemma of support for the independent housing life after the facilities', 'Role competition between rent management and case management', 'Lonely practice for linkage and cooperation with the mainstream community support system', 'Double employment relationship and poor working environment' respectively. Based on their experiences, this study suggests practical and practical suggestions for case management of rental housing.

Effects of Bisphenol S on Viability and Reactive Oxygen Species of the Sperm and Ovarian Granulosa Cells in Pigs (Bisphenol S가 돼지정자와 난소내 과립막세포의 생존성과 활성산소에 미치는 영향)

  • Lee, Yu-Sub;Lee, Seunghyung;Yang, Boo-Keun
    • ANNALS OF ANIMAL RESOURCE SCIENCES
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    • v.29 no.4
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    • pp.166-171
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    • 2018
  • The effect of bisphenol S (BPS) on the viability and production of reactive oxygen species (ROS) was studied in boar sperm and ovarian granulosa cells. Boar semen was incubated in Beltsville thawing solution with either 0 or $5{\mu}M$ BPS for 3 and 6 h. The viability of sperm was analyzed by SYBR14/PI doubling staining, and production of ROS was detected. Ovarian granulosa cells were also treated with BPS for 24, 48, and 72 h. Then, cell viability (0, 5, 10, and $20{\mu}M$) and ROS production (only 0 and $5{\mu}M$ BPS) were assessed. The results showed that, BPS decreased sperm viability at 3 and 6 h, and that BPS increased ROS production (p<0.05). Also, BPS reduced the viability of ovarian granulosa cells (p<0.05), and stimulated ROS production (p<0.05). These results suggest that BPS damages sperm activation and ovarian granulosa cells in the reproductive system.

The Political Economy of Southeast Asia 2017 (동남아의 정치경제 2017)

  • PARK, Sa-Myung
    • The Southeast Asian review
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    • v.28 no.1
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    • pp.1-20
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    • 2018
  • Southeast Asia witnessed a paradox of political stagnation and economic development in 2017. The 'dual order' of security dependence on America and economic dependence on China was sustained in East Asia. In this regard, Southeast Asia of two faces was quite similar to broader East Asia. On one hand, the old socialist group with totalitarian nostalgia lurked in the buffer zone between totalitarianism and authoritarianism, while the original capitalist group under democratic disguise roamed in the gray zone between authoritarianism and democracy. On the other, the old socialist group with the legacy of the planned economy succumbed to the temptation of the Beijing Consensus on state capitalism, while the original capitalist group with the myth of the market economy was exposed to the pressure of the Washington Consensus on liberal capitalism. The ASEAN Community representing the regional integration of Southeast Asia was caught in the strategic predicament of a looming 'new cold war' between the continental and maritime powers.

A Fuzzy Weights Decision Method based on Degree of Contribution for Recognition of Insect Footprints (곤충 발자국 인식을 위한 기여도 기반의 퍼지 가중치 결정 방법)

  • Shin, Bok-Suk;Cha, Eui-Young;Woo, Young-Woon
    • Journal of the Korea Society of Computer and Information
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    • v.14 no.12
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    • pp.55-62
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    • 2009
  • This paper proposes a decision method of fuzzy weights by utilizing degrees of contribution in order to classify insect footprint patterns having difficulties to classify species clearly. Insect footprints revealed delicately in the form of scattered spots since they are very small. Therefore it is not easy to define shape of footprints unlike other species, and there are lots of noises in the footprint patterns so that it is difficult to distinguish those from correct data. For these reasons, the extracted feature set has obvious feature values with some uncertain feature values, so we estimate weights according to degrees of contribution. If the one of feature values has distinct difference enough to decide a class among other classes, high weight is assigned to make classification. A calculated weight determines the membership values by fuzzy functions and objects are classified into the class having a superior value.atu present experimental resultseighrontribution. Iinsect footprints with noises by the proposed method.

A Study on the Required Characteristics of Collaborative Online Platform for Social Enterprises

  • Sun-Hwa Lee;Jong-Soo Yoon
    • Journal of the Korea Society of Computer and Information
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    • v.29 no.7
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    • pp.129-137
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    • 2024
  • Social enterprises have a high cost structure, inefficient operation, and poor human and material resources due to a dual structure that must achieve both economic and social purposes. To solve this problem, collaboration, such as sharing resources and information between social enterprises, is emerging as an important management issue. Accordingly, in recent years, the establishment and operation of an online platform is being emphasized as a means to effectively support the problem of lack of resources (human resources, equipment, funds, and technology) between social enterprises, the promotion of joint projects between companies, and the establishment of organic information sharing and communication channels between companies. This study empirically analyzed how the required characteristics of the online platform that supports the collaboration of social enterprises vary depending on the characteristics of the enterprise (general characteristics, collaboration characteristics), and found that there are statistically significant differences depending on the size. These results are expected to be useful in deriving management plans for online platforms for cooperation support for domestic social enterprises in the future, and seeking ways to increase collaboration using the platforms.

The Religious Implications of the Concepts of Public and Private Affairs in the Daesoon Thought (대순사상의 공사론(公私論)에 나타난 종교적 함의)

  • Choi Jeong-rak
    • Journal of the Daesoon Academy of Sciences
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    • v.49
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    • pp.331-364
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    • 2024
  • This article examines the religious implications of the concept of public (gong, 公) and private (sa, 私) affairs as presented in Daesoon Thought. To achieve this, the article first explores the three main meanings of gong and sa in the East Asian tradition: ①gong as ruling powers or institutions and sa as the personal sphere, ②gong as communal interests or opinions and sa as individual interests or opinions, and ③gong as fair ethical principles and sa as unfair, immoral intentions. The analysis reveals that Daesoon Thought strongly emphasizes the conceptualization of gong and sa in terms of ethical principles and immoral aspects. The practice of distinguishing between gong and sa is seen as an important way to open up the new order of life, called the Earthly Paradise of Later World, that Daesoon Jinrihoe aims to achieve. Daesoon Thought's theory on public versus private, which restrains the private (sa, 私) and prioritizes the public (gong, 公), provides a solid framework for self-transformation through moral practice, enabling participation in the Earthly Paradise of Later World envisioned by Jeungsan, the originator of Daesoon Jinrihoe's teachings.

A Case Study on the Effectiveness of the Cooperative Management by Leading of Forest Owners and Its Extension System - A demonstrational cooperative management in the private forest guided by the Korean German Forest Management Project - (산주주도형(山主主導型) 협업경영사업(協業經營事業)과 그 지도체계(指導體系)의 효과(效果)에 대한 사례연구(事例硏究) -한독기구(韓獨機構) 사유림협업경영(私有林協業經營) 시범사업(示範事業)을 중심(中心)으로-)

  • Kim, Jong Kwan
    • Journal of Korean Society of Forest Science
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    • v.67 no.1
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    • pp.17-27
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    • 1984
  • The Yangsan Forest Management Station (YFMS) of Korean German Forest Management Project (KGFMP), working with the 6 legal villages of Uljugun, Kyongnam, led the forest owners in the area to organize the Forest Management Cooperative (FMC) voluntairily for improvement of private forest management and fostered it as a model from May 1975 to Apr. 1984. YFMS sent out FMC a forest manager as a forestry expert carrying out the leading extension program at the equal position with forest owners and gave FMC financial, administrative and technical assitances. During the 6 years from 1977 to 1982, 4 FMC were founded and are being operated democratically. 228 forest owners have taken the membership of their own free will and the forestland of the members covers 2,567 ha equivalent to 57% of the total private forest in the area. During the period the total area of the planting and tending is 4,185 ha, this means that a member executed 3.1 ha of forest operations per year in average, showing the high willingness on forest operations. In addition the joint works have resulted in the joint properties equivalent to 27 million Won and it will be an important foundation for operation of FMC which is a forest owners's cooperative organization for improvement of private forest management in this area. The total expenditure spent for the fostering of FMC amounted to 497,587 thousand Won and 58% of them were charged from KGFMP funds, 27% from the forest owners and 15% from public funds. The expenditure for investment was 273,104 thousand Won and 59% of the sum were appropriated as subsidies at the national level. The forest owners charged 43% of that and this means that each member invested approximately 100 thousand Won to his forestland per year in average. For the extension program 169,503 thousand Won were spent and it can be explained that 5,885 Won were spent per ha a year. The organization of FMC operated autonomously in a democratic way and the horizontal and leading extension system, which aspects the human rights, were very much effective in fostering the cooperative organization of forest owners for improvement of private forest management.

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