• Title/Summary/Keyword: 감수부

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Labor-saving Cultivation of Cynanchum wilfordii using Support Crops (지주작물을 이용한 백하수오 생력재배)

  • 김민자;박부규;박재호;박성규
    • Korean Journal of Plant Resources
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    • v.12 no.3
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    • pp.204-208
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    • 1999
  • We carried out this study to confirm the possibility of C. wilfordii cultivation using crop as a substitute for stake or net, and tested sit support crops, i.e., soybean, peanut, Perilla frutescens var. acuta Kudo, Job's tears, sorghum, and corn compared with net support. Effects of support crops on growth and root yield of C. wilfordii were as follows. Attracting efficiency of vine showed 94∼100% among crops. The number of branches per plant was 1 or 2 more in p. frutescens var. acuta Kudo, Job's tears, and sorghum support than in net support. Fresh root yield per 10a was 919kg in net support, while it was 717kg in P. frutescens var. acute Kudo, 656kg in Job' tears, and 652kg in sorghum support. However, the problem of decreased yield in these support crops could be overcome by cost saving of staking installation and by harvesting support crops. Therefore, C. wilfordii cultivation using P. frutescens var. acute Kudo, Job's tears, and sorghum as support crops showed most effective in labor and cost saving.

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WTO/DDA.FTA 농업협상 동향

  • Korea Duck Association
    • Monthly Duck's Village
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    • v.62 no.8
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    • pp.40-43
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    • 2008
  • 자유시장 경제를 신봉하는 사람들은 국가간 교역의 증대는 비교우위에 따른 무역의 증대를 의미하고 이것은 국가간 상호이익을 도모함으로써 세계적인 부를 증진시킨다고 주장한다. 세계화로 다른 나라의 다양한 물품을 우리나라 소비자들이 싼 값에 살 수 있고, 생산자도 세계의 넓은 시장에서 판매활동을 할 수 있으므로 세계적인 부를 증진시킨단 말은 일면 타당해 보인다. 그러나 후진국의 경제발전(특히 수입대체산업의 육성)에 악영향을 미칠 것이며, 선진국 경제에 후진국이 종속되는 결과를 낳을 것이라고 한다. 또한 세계화는 이익을 보는 계층과 손해를 보는 계층을 극명하게 나눠 놓음으로서 분쟁과 갈등을 증대시키는 면도 있다. 예를 들면 최근의 농산물시장의 개방에 따른 우리나라 농민들의 피해, 자본의 대량유입과 대량유출에 따른 외환위기의 위험성 등 개발도상국을 비롯한 중.후진국이 감수해야 할 지도 모르는 부담이 상당하다. 경제적인 종속 이외에도 사회적, 문화적인 종속을 우려하는 시각도 있다. 이러한 가운데 세계화를 주장하는 미국과 대립되는 상황이 나타나는데 이는 자국 문화를 수호하려는 정부의 노력으로 보인다.

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A Study on the Appropriate Configuration of Energy Resources for Micro grid Considering Peak Cut (첨두 부하 삭감을 고려한 마이크로그리드 공급자원의 적정 규모 산정에 대한 연구)

  • Lee, You-Seok;Youn, Seok-Min;Kim, Seong-Eun;Hwang, Sung-Wook;Kim, Jung-Hoon
    • Proceedings of the KIEE Conference
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    • 2015.07a
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    • pp.537-538
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    • 2015
  • 전기혜택을 받지 못하는 개발도상국의 도서지역이나 산간지역 등에 전기를 공급하기 위한 방법으로 마이크로그리드를 구축하고 있다. 그러나 24시간 전기 공급을 위해서는 많은 투자 재원이 필요하다. 따라서 본 논문에서는 첨두 부하를 삭감하여 공급지장을 감수하더라도 투자 재원을 줄여 전기 공급의 확대를 목표로 한다. 또한 HOMER 프로그램을 이용하여 첨두 부하 삭감을 고려하는 가상발전기 개념을 도입하고 발전기의 고장정지율을 고려한 감도 분석을 통하여 마이크로그리드의 각 설비별 기대 적정 규모를 구하는 방법론을 제안한다.

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A Survey on PIM Acceleration Technology to Overcome Memory Wall Problem (Memory wall 을 극복하기 위한 PIM 가속 기술에 대한 조망)

  • Jung, Heon-Hui;Paek, Yun-Heung
    • Proceedings of the Korea Information Processing Society Conference
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    • 2022.11a
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    • pp.66-68
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    • 2022
  • 활용도가 높아지고 있는 최근의 딥러닝 애플리케이션 등을 사용하기 위해서 기존의 CPU 구조로는 한계가 있어 GPU, TPU 등의 하드웨어로 가속하려는 노력이 있어왔다. 하지만 물리적인 제약으로 인해 메모리 대역폭에 한계가 있으며, 이를 뛰어넘기 위해 메모리 안에서 직접 연산을 수행하는 Processing-in-Memory 기술이 떠오르고 있다. 본 논문은 PIM 기술을 사용할 때의 불이익을 감수하면서 장점을 최대한 활용하는 방법들에 관해서 서술하였다.

체육 동호인들의 개인적 특성, 네트워크 요인, 창업지원 인식이 창업의지에 미치는 영향: 창업효능감의 조절효과를 중심으로

  • 조윤환;이원일
    • 한국벤처창업학회:학술대회논문집
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    • 2023.11a
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    • pp.49-52
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    • 2023
  • 최근 첨단기술의 발달로 인해 기존의 생산업들보다 고 부가 가치를 이끌어 낼 수 있는 아이디어의 중요성이 대두되고 있다. 이러한 점에서 창업은 참신한 아이디어로 고 부가 가치를 이끌어 낼 수 있다는 점에서 중요하다 할 수 있고 국가의 정책적으로도 많은 창업을 이끌어 내려는 노력이 이어지고 있다. 본 연구는 이러한 창업 중 스포츠 창업의 분야에서 체육동호인의 개인적 특성 요인이 창업의지에 미치는 영향에 대해 알아보고자 하며, 이러한 관계에 창업에 대한 자기효능감 요인의 조절효과 영향에 대하여 밝히고자 한다. 창업의지의 결정 요인으로서 개인적 특성 요인과 네트워크 요인, 창업지원 인식 요인이 창업의지에 미치는 영향에 대해 알아보고자 하였으며, 이 요인들은 창업효능감의 조절로 인하여 더욱 활동력이 강화될 것으로 보고 창업효능감의 조절효과를 살펴보고자 하였다. 독립변수로 잠재적 창업자의 개인적 특성 요인(성취욕구, 위험감수성향, 혁신성), 네트워크 요인(온라인 교류, 오프라인교류), 창업지원 인식 요인(동호회 창업지원 인식, 정부 창업지원 인식), 조절변수로는 창업효능감, 종속변수로는 창업의지의 내용으로 연구모형을 구성하였다.

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An environmentally friendly tunnel construction method at low overburden (환경친화적인 저토피 터널굴착 공법)

  • Han, Kwang-Mo;Park, Inn-Joon
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.4 no.3
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    • pp.207-216
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    • 2002
  • Conventional Korean tunnel portals require a lot of overburden. For stability reasons, about 1.5 to 2.0 times the tunnel diameter is needed for the height in order to achieve a sufficient arching effect. Thus, considerable movement of earth and support constructions are required which lead to undesirably large changes of and damage to the environment. With a massively designed pipe roof, tunnels at low overburden can be built. To effectively construct pipe roof as an advanced safeguarding method, the following properties are indispensable: stability, insensitivity to settling and drilling accuracy. A new pipe roof method, AT-casing system, has been developed which on the one hand entirely combines the properties mentioned above, and which on the other hand permits the construction of safe, economical and environmentally friendly tunnels at low overburden heights of 3 to 5m.

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A Study on Human Rights Sensitivity in Korean Occupational Therapist (국내 작업치료사의 인권감수성에 관한 연구)

  • Hong, Ki-Hoon
    • The Journal of Korean society of community based occupational therapy
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    • v.8 no.3
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    • pp.49-57
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    • 2018
  • Objective : The purpose of this study was to investigate the level of human rights sensitivity of occupational therapist and to compare the difference of the human rights sensitivity according to their characteristics and to provide basic data for the development of human rights education programs for occupational therapists in the future and to emphasize their role as human rights advocates. Methods : The subjects for this study were occupational therapists who chosen by snowball sampling method. The questionnaire consisted of 5 episodes and 30 questions to measure the level of occupational therapist's human rights sensitivity and 7 questions for identifying general characteristics of subjects. We distributed the questionnaire by on-line. 165 copies were collected and used to final data analysis. Results : The average of occupational therapists' human rights sensitivity was $33.52{\pm}14.96$. According to the subcategories, the average of perception of situation was $20.44{\pm}2.32$, perception of result was $19.85{\pm}2.32$, and the perception of responsibility was $19.14{\pm}2.21$. Among 5 episodes, The highest score was the right to pursue one's happiness of the elderly($12.72{\pm}1.56$), and the lowest score was the right to personal freedom in disabled ($11.04{\pm}2.23$). There were significantly differences of the subjects' age, educational level, organization type, and the level of clinical experiences. Conclusion : Occupational therapists' human rights sensitivity increased with age and the level of clinical experiences. And the human rights sensitivity increased as they were exposed to various human rights related circumstances. The reason of the highest score for situational awareness was that empathy for the client-centered intervention is important. This study confirmed that it is necessary to have human rights education and various educational programs.

EFFECT OF NEUTRON AND GAMMA IRRADIATION ON THE GERMINATION OF DIPLOID AND TETRAPLOID RYE SEEDS (중성자 및 감마선의 조사가 이배체 및 사배체 호맥의 종자의 발아 및 성장에 미치는 영향)

  • YIM, Kyong Bin
    • Journal of Plant Biology
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    • v.6 no.3
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    • pp.6-14
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    • 1963
  • YIM, Kyong Bin (Coll. of Agriulture, Seoul National University) Effect of neutron and gamma irradiation on the germination of diploid and tetraploid rye seeds. Kor. Jour. Bot. VI(3):6-14, 1964. Tetraploid rye, Secale cereale 4x, was more tolerant to fast nuetron than diploid rye. Root growth was more suppressed than was seedling height in both diploid and tetraploid rye. A stimmulative effect on the dry weight of the shoot could be observed at very low doses of irradiation. It was the fact that the lower the moisture content of the seeds, the higher the radiosensitivity. Concerning seedling height growth, the effectiveness ratio of N/X equalled about 20.0 in diploid rye and about 18.2 in tettraploid rye, when the 50% dose ratios is used for this quotient calculaiton.

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Effects of Weed Removal Time on Growth and Yield of Maize (잡초제거(雜草除去) 시기(時期)가 옥수수의 생육(生育) 및 수량(收量)에 미치는 영향(影響))

  • Kang, Y.K.;Park, K.Y.;Jong, S.K.;Park, S.U.;Moon, H.G.
    • Korean Journal of Weed Science
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    • v.5 no.1
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    • pp.50-55
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    • 1985
  • Effects of weed removal time on maize growth and yield were evaluated in the fields dominated with Poligonum spp., Chenopodium album, Echinochloa crusgalli and Digitaria adsendens from 1982 to 1983 in Suweon. Weed removal treatments were as follows: (a) kept weedfree all season, (b) weeded at 10 day intervals after maize emergence but stopped weeding at 3,5,7,9 leaf stages, (c) weeds initially removed at 3,5,7 and 9 leaf stages and the plots then kept weed free, (d) weeds left all season. Maize kept weed free from maize emergence to 7 leaf stages showed no grain yield reduction due to competition from weeds emerging later, but weeding from emergence to 3 and 5 leaf stages reduced grain yield 46 and 44%, respectively, in 1982 and 29 and 18%, respectively, in 1983. Weeding at 3 leaf stage and thereafter did not influence grain yield but initial weedings at 5, 7 and 9 leaf stages reduced grain yield 10, 36, and 67%, respectively, in 1982 and 14,18, and 21%, respectively, in 1983. Responses of maize to weeding time in the dry matter yields were same as in the grain yields.

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Factors affecting startup intention of retired office-workers (직장인들의 은퇴후 창업의도에 미치는 영향 요인)

  • Choi, Yang-Lim;Ha, Kyu-Soo
    • Journal of Digital Convergence
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    • v.10 no.9
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    • pp.195-212
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    • 2012
  • Most of the office-workers are worrying about their future and try to make diverse future plan. Fast shifting industry pattern make office-workers retire early and their remain life time are getting longer and many of them try to consider some kind of new start-up. In this article factors affecting entrepreneurial intention were discussed such as individual factors, psychological factors, environmental factors. Individual factors were economic situations and future life expectation were analyzed. Psychological factors were composed of risk taking tendency, self efficiency, career value, and entrepreneurial characteristics were discussed. Environmental factors were composed of recognition on social-economic risks and recognition on negative mind on start-up, and employment unstability. 340 sample questionaries were collected and 26 samples were excluded. Data were analyzed by SPSS Win 18.0 Version. The results of the study were as follows. Among individual factors life-expectation after retirement was positive impact on entrepreneurial intention. Among psychological factors risk taking factor has positive impact on entrepreneurial intention. Among Environmental factors negative recognition on start-up has negative impact on entrepreneurial intention. Based on the studies diverse understanding and implementation of policies were necessary to change negative social atmospheres on start-up.