• Title/Summary/Keyword: 도입요인

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Studies on the Use of Radioisotope Tracer Technique to Investigate and Improve The Root Activities in Rice Plant [III] -Effects of Application of Fused Magnesium Low Level Phosphate and Control of Irrigation Water- (방사성(放射性) 동위체(同位體) 도입(導入)과 그 추적기술(追跡技術)에 의(依)한 수도계(水稻系) 활성상(活性上)의 해명(解明)과 개선(改善)에 관(關)한 연구(硏究)(제 3 보)(第 3 報) -저인산성(低燐酸性) 무기(無機) 용성물질(熔成物質)의 시용(施用)과 용수조절(用水調節) 효과(?果)에 대(對)하여-)

  • Ahn, Hak-Soo;Ro, Jun-Chong;Chung, Hee-Don;Kim, Kyu-Won;Lee, Chun-Yong
    • Applied Biological Chemistry
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    • v.16 no.1
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    • pp.41-48
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    • 1973
  • 1. Through out the entire stage of growth, the amount of nutrients, number of tillers and of spikes increased in the Simagcalin treated plot as compared with the control. The treated plot showed healthul growth at the later growing stage. On the other hand, management of irrigation water resulted in raised the grain straw ratio and retarded the culm height about 10%. 2. Application of Simagcalin greatly increased the content of phosphorus and magnesium at the harvesting time. The culm and sheath analyses are recommendable for the determination of magnesium deficiency. 3. The controled irrigation would effect root activity as the main factor, and Simagcalin might act as a secondary factor. 4. While the application of phosphorus may not affect the yield components, The basic elements in Simagcalin may enhance the uptake of nutrients under heavy application of nitrogn.

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Performance Evaluation of Wireless Sensor Networks in the Subway Station of Workroom (지하철 역사내 무선 센서네트워크 환경구축을 위한 무선 스펙트럼 분석 및 전송시험에 관한 연구)

  • An, Tea-Ki;Kim, Gab-Young;Yang, Se-Hyun;Choi, Gab-Bong;Sim, Bo-Seog
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.7
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    • pp.3220-3226
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    • 2011
  • In order to monitor internal risk factors such as fire, terror, etc. on the subway station, the surveillance systems using CCTV and various kinds of sensors have been implemented and recently, introduction of surveillance systems using an advanced IT technology, sensor network technology is tried on several areas. Since 2007, Korean government has made an effort to develop the intelligent surveillance and monitoring system, which can monitor fire, intrusion, passenger congestion, health-state of structure, etc., by using wireless sensor network technology and intelligent video analytic technique. For that purpose, this study carried out field wireless communication environment test on Chungmuro Station of Seoul Metro on the basis of ZigBee that is considered as a representative wireless sensor network before field application of the intelligent integrated surveillance system being developed, arranged and analyzed and ZigBee based wireless communication environment test results on the platform and waiting room of Chungmuro Station on this paper. Results of wireless spectrum analysis on the platform and waiting room showed that there is no radio frequency overlapped with that of ZigBee based sensor network and no frequency interference with adjacent frequencies separated 10MHz or more. As results of wireless data transmission test using ZigBee showed that data transmission is influenced by multi-path fading effect from the number and flow rate of passengers on the platform or the waiting room rather than effects from entrance and exit of the train to/from the platform, it should be considered when implementing the intelligent integrated surveillance system on the station.

A Method to Develop Security System through the Analysis on Dangerous Case (위해사례분석을 통한 경호제도의 발전방안)

  • Yu, Hyung-Chang;Kim, Tae-Min
    • Korean Security Journal
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    • no.16
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    • pp.161-187
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    • 2008
  • The purpose of this study is to suggest a development method of current Korean security system by analyzing the problems shown in the performance of security work in relation to the terrorism, which is enlarging in the word, from various aspects. In order to perform the study, the researcher considered the basic theory concerned to current Korean law concerned to security, principle and methodology of security, terror and new terrorism. The researcher performed the study by selecting qualitative case study focused on Park Geun-Hye case. Through the study, the methods to develop Korean security system are as follows. First, from the legal aspect, it is necessary to establish the law concerned to terrorism prevention and important person security. Moreover, it is necessary to search for the development of private security by revising Security Industry Act, which is a legal ground of private security. Second, it is necessary to improve and reinforce education & training program, which is not still divided in detail from the aspect of private security cultivation. Moreover, it is necessary to activate personal protection work and enlarge market through Security Industry Act and make an effort to change social recognition over security, which is devaluated in the society. From the viewpoint, national license about private security shall be adopted. The department of president security, which is a representative of official security, shall transfer the advanced technology to private security organization. Third, from the aspect of operation, the operation of security based on SCE principle, human shield principle, the nearest person's protection principle, body extension principle, linear protection principle and evacuation priority principle is required. Therefore, the priority shall be given to preventive security and thorough security plan shall be made for the operation.

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A Study on Developing the Model of Reasonable Cost Calculation for Privacy Impact Assessment of Personal Information Processing System in Public Sector (공공기관 개인정보 처리시스템의 개인정보 영향평가를 수행하기 위한 합리적인 대가 산정 모델 개발에 관한 연구)

  • Shin, Young-Jin
    • Informatization Policy
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    • v.22 no.1
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    • pp.47-72
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    • 2015
  • According to the progress of national informatization throughout the world, infringement and threaten of privacy are happening in a variety of fields, so government is providing information security policy. In particular, South Korea has enhanced personal impact assessment based on the law of personal information protection law(2011). But it is not enough to effect the necessary cost calculation standards and changeable factors to effect PIA. That is, the budgets for PIA was calculated lower than the basic budget suggested by Ministry of Government Administration Home affairs(2011). Therefore, this study reviewed the cost calculation basis based on the literature review, cost basis of similar systems, and reports of PIA and obtained to the standard with Delphi analysis. As a result, the standards of PIA is consisted to the primary labors and is utilized to how the weights by division of target system, construction and operating costs of target system, type of target systems, etc. Thus, the results of this study tried to contribute to ensure the reliability of PIA as well as the transparency of the budget for privacy in public sector.

The Effects of Technological Progress on Growth, Employment and Distribution (성장 ${\cdot}$ 고용 ${\cdot}$ 분배에 대한 기술진보의 파급효과)

  • Im, Yang-Taek
    • Proceedings of the Technology Innovation Conference
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    • 2005.02a
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    • pp.220-267
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    • 2005
  • 본 연구의 분석목표는 순요소증가형 CES 생산함수를 실증적으로 추정함으로써 한국 제조업부문의 기술변화의 유형을 규명하고 성장 ${\cdot}$ 고용 ${\cdot}$ 분배에 대한 기술진보의 파급효과를 분석하는 것이다. 이 분석결과를 토대로 하여, 본 연구는 성장 ${\cdot}$ 고용 ${\cdot}$ 분배를 동시적으로 추구할 수 있는 정책방향을 기술경제 패러다임의 시각에서 제시하였다. 본 연구의 실증적 분석결과는 다음과 같이 요약할 수 있다 : 한국 제조업부문의 기술변화의 유형은 Hicks형 비(非)중립적인 자본사용적(B(t)>0) 즉 노동절약적 기술진보인 것으로 추정되었다. 이 결과, 잠재적 고용수준은 감소될 수밖에 없었다. 또한, Hicks형 중립적 기술진보를 나타내는 총요소생산성 증가율(${\gamma}$)은 감소하였던 반면에, 비(非)중립적 기술진보를 나타내는 요소간 대체탄력도(${\sigma}$)와 자본집약도(${\delta}$)는 증가하였다. 이에 따라 노동(L)이 자본(K)으로 광범위하게 대체되었을 뿐만 아니라, 자본투입(K)이 노동투입(L)보다 상대적으로 더 빠르게 증가 (K/K > L/L 즉 k/k > 0)되었다. 이 결과, 소득분배구조가 악화 (S/S< 0)된 것으로 추정되었다. 그러므로, 오늘날 경제성장의 한계 봉착, 대량실업의 폭발, 계층간 갈등의 심화를 초래한 요인은, 성장 ${\cdot}$ 고용 ${\cdot}$ 분배를 동시적으로 추구하는 산업 ${\cdot}$ 기술경제정책을 일관성있게, 또한 과감히 추진하지 않았던 결과, 노동사용적 중소기업의 몰락, 노동의 생산효율성 증진을 위한 인적자본 투자의 미흡, 자본의 생산효율성 증진을 위한 자본절약적 기술진보의 저조, 총요소 생산성 증가의 부진, 만성적인 인플레이션에 의한 실질 임금수준의 하락 및 실물 자산가치의 상승 등이라고 말할 수 있다. 따라서 성장 ${\cdot}$ 고용 ${\cdot}$ 분배의 조화는 바로 노동효율 증가형 기순혁신이며, 이를 위한 인적자본에의 투자라고 말할 수 있다. 본 연구가 기술경제 패러다임(techno-economic paradigm)의 시각에서 제시하는 한국경제의 성장 ${\cdot}$ 고용 ${\cdot}$ 분배를 위한 정책방향은 다음과 같은 동태적발전과정으로 요약할 수 있다 : 기초과학연구능력 확충 ${\rightarrow}$ 소화 ${\cdot}$ 흡수 ${\cdot}$ 개량 ${\rightarrow}$ 토착화 능력의 배양 ${\rightarrow}$ 자체기술개발, 선진기술 도입, 산업간 및 산업내 기술확산, 국제기술협력 ${\rightarrow}$ 기술혁신의 촉진 ${\rightarrow}$ 총요소생산성과 기업경쟁력(자원 및 역량, 프로세스 경쟁력, 품질경쟁력, 시장경쟁력, 고객성과, 시장성과, 재무성과)의 제고 ${\rightarrow}$ 가격경쟁력(임금, 금리, 물류비용, 환율 등)과 비(非)가격경쟁력(디자인, 에프터서비스, 품질, 운송 등)의 제고 ${\rightarrow}$ 국가경쟁력의 제고 ${\rightarrow}$ 국제수지 흑자 ${\rightarrow}$ 성장 ${\rightarrow}$ 물가 및 고용 안정 ${\rightarrow}$ 분배 ${\rightarrow}$ 최대다수의 최대행복이다.

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Current Status of Hospital-based Health Promotion Programs in Korea and the Factors Influencing Their Introduction (우리 나라 병원들의 건강증진 서비스 도입 현황과 이에 영향을 미치는 요인)

  • Lee, Sang-Gyu;Park, Choon-Seon;Kang, Myung-Guen;Hahm, Myung-Il;Lee, Soon-Young;Cho, Woo-Hyun
    • Journal of Preventive Medicine and Public Health
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    • v.34 no.4
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    • pp.399-407
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    • 2001
  • Objectives : To investigate the current status of hospital-based health promotion programs in Korea and to elucidate the factors which affect to the process of implementation. Methods : We conducted a mail survey of all 875 hospitals in Korea from March to May 2001. In reference to 12 specific kinds of health promotion programs, hospital CEOs were asked whether their hospital have such programs, whether they are fully staffed and whether the program is paid for by the patients. Contextual factors(location, hospital type, number of beds, length of operation, public/private status, economic level of the community, the level of competition) and organizational factors (the extent of market, compatibility with vision, formalization), strategic types of the CEOs (defender/analyser/prospector) were also surveyed. The relationships between each variable and the implementation of health promotion services, activation of services, and the target groups(patient/community resident) were analyzed by univariate analysis and the independent effects of these variables were examined with multiple logistic regression. Results : 100 of 125 hospitals responding (84.8%) had mere than one health promotion program. However, they showed fluctuations in the adoption rate of each programs, meaning that comprehensive health promotion services were not provided. Many programs were not fully staffed and few hospitals had paid programs. In factors affecting health promotion service implementation, private hospitals showed a higher rate in implementation than public hospitals. In contrast, when the competition among nearby hospitals was intense, the level of implementation of service lowered. In the strategic type of the CEOs, the prospectors were shown to have instituted more health promotion programs in their hospitals and the analysers had a greater tendency to have programs for community residents than the defenders. Conclusion . Considering the above results, contextual factors may contribute greatly to the introduction of health promotion services in Korean hospital, although the CEO's personal preference and organizational factors play a larger role in the activation of services. Additionally, the CEO's personal preference may be the major influencing factor in the introduction of programs for community residents.

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Deduction of Evaluation Factors and the Calculation of Weighted Value to Select Export Target Country of Public IT Service (공공 IT 서비스의 수출대상국 선정을 위한 평가항목 도출 및 가중치 산정)

  • Kwon, Hyeog-In;Lee, Jin-Hwa;Park, Jong-Seok
    • Information Systems Review
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    • v.17 no.3
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    • pp.1-17
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    • 2015
  • Due to the constant expansion of overseas public IT market, exportation market mainly based on e-government is expanding and platform needs to be introduced urgently to systematically support it. Thus, this study was carried on to draw evaluation items and weighted value of tools to support decision-making out of services of public IT platform. In this study, the tools supporting decision-making were defined as concept that draws exportation customers by wholly considering 2 aspects of enterprise capabilities and national environment. To develop tools supporting decision-making, the items to evaluate the aspect of enterprise capabilities and national environment were drawn through study on literature and open question and evaluation items were eliminated and AHP analysis was done through question given to experts. As a result, the significance was found in the order of Export Competitive Advantage > Export Marketing Strategy > Export Human Resources > Export-Related Organizational Resources > Export-Related Organizational Capabilities in the aspect of enterprise capabilities. The significance of evaluation was found in the order of Service Market Efficiency > Technical innovation and Maturity > Institutions > Market Efficiency > Macroeconomic Environment > Infrastructure in the aspect of national environment.

A Numerical Study on the Generation and Propagation of Intake Noise in the Reciprocating Engine (엔진 흡기계의 소음발생 및 전파에 관한 수치연구)

  • 김용석;이덕주
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 1996.10a
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    • pp.65-70
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    • 1996
  • 엔진소음을 소음특성에 따라 분류하면 공력소음(Aerodynamic Noise), 연소소음(Combustion Noise), 기계적인 소음(Mechanical Noise)으로 나눌 수 있으며 소음원의 종류에 따라 분류하면 배기계소음(Exhaust System Noise)으로 나눌 수 있으며 소음원의 종류에 따라 분류하면 배기계소음(Exhaust System Noise), 흡기계소음(Intake System Noise), 냉각계소음(Cooling System Noise), 엔진표면소음(Engine System Noise)등으로 분류할 수 있다. 이러한 여러소음중 엔진 내부의 유동에 의한 흡배기계통으로의 소음방출은 자동차 실 내외 소음의 중요한 문제로 대두되는데, 이를 줄이기 위해 그 동안 소음기 등의 서브시스템의 형태와 그 위치조정에 관한 연구가 수행되어 왔다. 그러나 이것이 비용 또는 성능에 영향을 미치므로 본질적인 소음원을 규명해 내는 것이 필요하게 되었다. 흡배기계의 소음은 엔진의 흡입, 배기행 정시 피스톤의 운동에 의해 팽창 및 압축파 형태의 압력파(pressure wave)로 발생하게 되고, 밸브근방에서는 유동의 박리(separation)에 의해 발생하게 된다. 소음기 등의 서브시스템에서도 유동의 박리에 의해 발생하게 되며 특히 배기행정시 발생하는 압력파는 비선형영역에 있게된다. 흡기소음은 배기에 비해 그 크기가 작아서 그동안 등한시 되어왔으나 이것이 소비자의 불평요인으로 작용하므로써 이에 대한 연구도 활발히 수행되어야 한다. Bender, Bramer[1]는 흡배기계 소음의 외부 방사에 관하여 전반적으로 기술하였고 Sierens등[2]은 흡기계에서 1차원 MOC(Method of Characteristics)방법으로 비정상 유동해석을 하고 실험결과와 비교하였다. J.S.Lamancusa 등[3]은 흡기 소음원을 실험을 통해 예측하였고, 흡기소음도 비선형 거동을 보인다고 밝혔다. Yositaka Nishio 등[4]은 새로운 흡기실험장치를 고안하여 공명기(resonator)의 위치 변화에 의한 저소음 흡기계를 설계 초기단계에서부터 적용하려 하였다. 일반적으로 흡배기계의 복잡한 형상 때문에 대부분 실험을 통해 문제를 해결하려 하였고, 수치해석은 피스톤의 운동을 배제한 단순화한 흡배기계의 정상상태 유동해석이 주를 이루어왔다. Taghaui and Dupont 등[5]은 KIVA코드를 사용하여 흡기포트와 연소실 그리고 밸브의 움직임을 동시에 고려한 수치해석을 도입하였다. 하지만 이들이 밸브의 운동을 고려하기 위해 사용한 이동격자는 격자점은 시간에 따라 변화하지만 그 격자의 수가 일정하게 유지되어 있어서 밸브의 완전개폐를 해석할 수가 없다. 강희정[6]은 단일 실린더와 단일 배기밸브를 갖는 문제로 단순화하여 피스톤과 밸브의 움직임을 고려하므로써 배기행정 후 소음이 어떻게 전파해 나가는가를 연구하였다. 본 연구에서도 최소밸브간격과 최대밸브간격 사이에서만 계산이 가능하나 흡기의 경우는 밸브가 닫힐 때 생기는 압력파가 중요하므로 실린더와 밸브사이에 벽면조건을 주어 밸브의 개폐를 모사하였다.

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International case studies for deep sea water industry -Focusing on the Taiwan case- (해양심층수 산업 해외 사례 연구 -대만 사례의 분석과 시사점을 중심으로-)

  • Ju, HyunHee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.10
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    • pp.537-547
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    • 2016
  • Deep Sea Water (DSW) has been exploited mainly by industry in a few countries including the U.S., Japan, Taiwan, and Korea. The development strategy of these states has pursued various goals based on their unique industrial environments and visions. Among them, Taiwan recently started their DSW industrialization, but has rapidly developed a variety of technologies and products. On the contrary, the Korean DSW industry has remained stagnant in the initial and growing stages for years, and now appears to need new plans and strategies for further development. The current literature lacks the strategy and policies required to foster the development of the domestic DSW industry. Relying upon the case of advanced foreign DSW industries, this study delineates the current status of the Korean DSW industry and discusses its future direction. Taiwan in particular has moved forward with policy development, financial and operation systems. This study attempts to provide a set of guidelines for the Korean DSW industry by focusing on the case of its Taiwanese equivalent. The Taiwanese strategical plans include premium drinkable water, government driven industrialization, diversification of DSW technologies and development of value-added products. This study provides a new direction for the DSW industry.

Mixture Study for Early-age Strength Improvement of NAC-typed High-strength Concrete Piles (NAC 방식 고강도 콘크리트 파일의 초기강도증진을 위한 배합에 대한 연구)

  • Yi, Seong Tae;Noh, Jae Ho;Heo, Hyung Seok
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.16 no.2
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    • pp.58-64
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    • 2012
  • Due to the influence of global oil prices, industrial productivity, which oil consumption is high, was significantly reduced. AC type of high-strength PHC piles is being manufactured through twice the steam curing process and this have resulted in a significant rise for product's manufacturing costs. NAC way other types of file manufacturing process has the advantage of reducing manufacturing costs by a turn of the steam curing. Nevertheless, because the initial strength be poor than that of AC method, shipment is being after the curing period of approximately three days. In addition, the growth of the product enhance with curing period can not be avoided, as a result, cost of inventory is acting as the rise. Piles by the AC method is immediately shipped after curing, damaging problems does not occur when they are introduced to the field site (for example, pile on-site). In the case of NAC, however, at least after the curing period of three days and after expressing the strength of 80 MPa or more, they are shipped on the scene. Therefore, NAC type has problems as follows: (1) increase in moderate inventory holding costs with type and (2) breakage in the field due to lack of strength. In this study, for NAC-typed PHC files, mixing characteristics research for the strength development at 1 day equivalent to AC method were conducted and strength characteristics with changes of original materials were evaluated were also identified.