• 제목/요약/키워드: Urgent problems

검색결과 409건 처리시간 0.024초

벼 직파재배(直播栽培)의 기술적(技術的) 발전(發展) 방향(方向) (Development of Direct Seeded Rice Cultivation in the Future)

  • 박석홍;이철원
    • 한국잡초학회지
    • /
    • 제12권3호
    • /
    • pp.292-308
    • /
    • 1992
  • Recently agricultural situations are being placed in unfavourable socio-economic environment as followed by rapid decrease of rural population, poor labor quality and high wages of rural society due to high speedy industrialization of social structure in Korea. In addition to those circumstances, under the UR system to be expected in the early future, free trade of agricultural products will be faced inevitably in Korea. Practically prices of rice as a principle food in this country are expensive about three times compared to those of foreign rice markets, and so how to increase the international competitiveness and food supplies are important problems to be solved rapidly. Accordingly an urgent goal is reduction of agricultural production cost by the improvement of labour productivity as a labour saving and cost down cultivation methods as the direct seeding cultivation in rice. But there are many problems in the direct seeded rice cultivation. The important things to be improved in that cultivation are development of rice varieties with lodging tolerance, effective seedling stand, weed control, irrigation management and fertilizing and so on. Moreover agricultural basis as irrigation facilities, land consolidation and farm machineries must be improved for the stability of rice cultivation in the future.

  • PDF

원격학습시스템 구현을 위한 WWW 기반 학습자료 모델링 (WWW Based Learning Contents Modeling for the Implementation of a Distance Learning System)

  • 조성목
    • 한국컴퓨터정보학회논문지
    • /
    • 제3권2호
    • /
    • pp.125-130
    • /
    • 1998
  • 21C를 바라보는 한국사회의 최대과제 중 하나는 정보사회를 향한 교육의 완성이며, 이는 교수학습 환경의 변화에 따른 새로운 교수학습 정보 지원체제를 요구하고 있다. 그럼에도 우리의 교육 현실은 효과적인 교수학습 정보지원체제의 부족으로 인한 많은 문제점을 안고 있다. 특히 교육을 지원하기 위한 교수˙학습자료 개발 노력은 매우 미미하며, 인터넷의 교육적 활용이 사회적 이슈가 되고 있음에도 학생들에게 제공되어야 할 정보와 지식베이스는 준비되어 있지 않다. 따라서 본 논문에서 제시할 초고속 정보통신망을 이용한 WWW 기반의 원격교육용 멀티미디어 학습자료의 모델링은 교육용 멀티미디어 데이터베이스를 형성하는데 좋은 기초가 될 것이다.

  • PDF

Waste glass powder and its effect on the fresh and mechanical properties of concrete: A state of the art review

  • He, Zhi-hai;Yang, Ying;Zeng, Hao;Chang, Jing-yu;Shi, Jin-yan;Liu, Bao-ju
    • Advances in concrete construction
    • /
    • 제10권5호
    • /
    • pp.417-429
    • /
    • 2020
  • Waste glass is a global solid waste with huge reserves. The discarded waste glass has caused a series of problems such as resource waste and environmental pollution, so it is urgent to recycle waste glass with high replacement level. Glass powder (GP), as a supplementary cementitious material (SCM), used in cement-based materials has already become one of the important ways to recycle waste glass mainly attributed to its pozzolanic reaction and filling effect, especially to the suppressed ASR expansion. This paper demonstrates an overview of the properties of GP and its effect on the fresh and mechanical properties of cement-based materials. The study found that the influence of GP on the performance of cement-based materials mainly depends on its content, particle size, color and type, curing conditions, and other SCMs. Finally, based on the problems involved in the investigation of concrete containing GP, some corresponding suggestions and efforts are given to further guide the utilization of GP in cement-based materials.

농촌 환경오염의 실태와 대책 (A Study on Some Issues of Rural Environment Degradation)

  • 김수욱;박은희;박지항
    • 농촌지도와개발
    • /
    • 제4권1호
    • /
    • pp.175-193
    • /
    • 1997
  • The agricultural development of Korea has occurred at the expense of natural resources and environmental quality, and, today, one of the most urgent problem in the practices of intensive livestock farming is disposing of the animal wastewater. As a result, soil and water degradation and other environmental deterioration become apparent and they cause long-term loss in agricultural production. This paper attempted to summarize the environmental problems associated with agricultural activities, and to get some implications to minimize agricultural environment problems. It is proposed that sustainable agricultural is one of desirable directions for future Korean agriculture. The goal of the sustainable agricultural effort is to utilize the potential environmental quality problem. Agricultural operations may be more dependent upon the production practices and waste management techniques utilized by farmers than the size of the operation, the number of animal fed, or amount of waste involved. Also low-input farming technology can be suggested one of them, and disposing system of agricultural residues and animal waste should be developed with intensive concerns and financial supports.

  • PDF

환자안전 문화에 대한 의료 종사자의 인식과 경험 (Experience and Perception on Patient Safety Culture of Employees in Hospitals)

  • 김은경;김희정;강민아
    • 간호행정학회지
    • /
    • 제13권3호
    • /
    • pp.321-334
    • /
    • 2007
  • Purpose: The objectives of this study were to understand and compare perception and experience between clinical staffs(nurses and pharmacists) and Quality Improvement managers. Method: A qualitative study was conducted with 14 clinical staffs and QI managers who are working at tertiary hospitals in Korea. Interviews were recorded and transcribed for systematic analyses of qualitative data. Results: Most critically, while QI managers acknowledged that establishment of the patient safety culture and reduction of medical errors are urgent tasks for QI effort, clinical staffs don't seem to share such perceptions. All participants agree that staff shortage and no compliance to safety procedures were major reasons for medical error occurrences. Many suggested that an organizational culture where errors were perceived as a systematic problems rather than individual failures or carelessness should be formed to promote voluntary reporting of medical errors. Conclusion: A more systematic effort and attention at the hospital leadership and public policy level should be promoted to constitute societal consensus on the urgence of promoting patient safety culture and more specific approaches to tackle the patient safety problems.

  • PDF

모바일 앱을 활용한 마을방송시스템 개발 (Village Broadcasting System using Mobile App)

  • 김원영;김종헌;이영석
    • 한국정보통신학회:학술대회논문집
    • /
    • 한국정보통신학회 2012년도 추계학술대회
    • /
    • pp.977-979
    • /
    • 2012
  • 종래의 무선 마을방송 시스템은 재난, 홍보, 공지 등의 안내 방송을 위해서 송신자가 직접 혹은 유무선 전화를 이용하여 마을방송 시스템에 접속하는 방식이다. 이런 방식에서는 송신자가 안내 방송을 위한 시간을 잊어버리거나 안내 방송을 하기 어려운 상황에 처해 있는 경우에는 중요한 사항, 긴급한 재난 정보 혹은 대피 요령 등의 전달이 어렵다는 문제점이 있다. 본 논문에서 이러한 문제점을 해결하기 위해 스마트폰 앱을 이용하여 인터넷 접속 기능이 추가된 마을방송 시스템을 기술한다. 스마트폰 앱을 이용하여 안내방송을 위한 방송 멘트를 저장, 송신할 수 있으며, 재난 방송이 자동적으로 마을방송 시스템으로 전송될 수 있도록 조작할 수 있다. 이를 통해 마을방송 시스템의 효율성을 극대화하고 송신자와 수신자의 마을 방송 만족도를 향상시킬 수 있다.

  • PDF

중국 향촌관광의 발전 특성과 의의 (Characteristics and Significances of China's Rural Tourism)

  • 박경철
    • 농촌지도와개발
    • /
    • 제23권3호
    • /
    • pp.295-308
    • /
    • 2016
  • The purposes of this research are to not only investigate the time-based and regional characteristics in process of development of rural tourism in China, but also explain the significances of rural tourism in China by economic-political significance and social-cultural significance. The characteristics and significances investigated throughout this research are as follows. First, the development of rural tourism in China can be divided by three stages: the first stage(1980-1990), the second stage(1990-2000), the third stage (2000 -). Second, the rural tourism in China has been mainly developed around the metropolitan city such as Beijing, Chengdu. But, they showed different characteristics in process of development of rural tourism. Third, rural tourism in China has been used in solving san-nong(三農) problems which are the most urgent issues in contemporary China and reducing the gaps of living standard between urban and rural area. Forth, rural tourism in China has contributed in satisfying the needs of travel and leisure caused by the improvement of living standard of people due to China's rapid economic growth. Last, it is suggested in this research that the legal and institutional systems be prepared to guarantee the benefits of farmers.

지식정보 활용과 정보(특허) 관리 (Strategic Approach to Managing Information(patent) for Utilization of R&D Outcomes)

  • 유사라
    • 한국비블리아학회지
    • /
    • 제13권1호
    • /
    • pp.77-92
    • /
    • 2002
  • 특정 분야 R&D성과물을 지식정보로 활용하기 위해서는 단순한 연구결과 보고서 제출만으로는 부족하며 더구나 지구촌 단위로 급속하게 변화하는 환경에서는 기존 결과활용에 의한 신속한 R&D에 대한 전략적인 전환지원이 없을 경우에는 영양가 있는 지식생성은 기대하기 힘들다. 본 연구는 지식정보로서 학술연구개발 성과물의 활용 현황과 그 결과로 지원되는 새로운 R&D의 지식생성 수준을 파악하고, 대학의 R&D 사례를 중심으로 관련법이나 규정과 현실과의 상충되는 부분을 지적한다. 결론에서는 엄청난 연구비를 지원하고 있는 학술연구의 결과활용과 새로운 연구활동을 지원할 수 있는 지식정보 관리의 실제적인 문제와 그를 해결하기 위한 요건을 제시한다.

  • PDF

SN비 의사결정기법을 적용한 중소기업의 eCRM문제점 분석에 관한 연구 (A Study on Analysis into eCRM Problem in the Small Business Apply to SN Ratio Decision Making)

  • 양광모;강경식
    • 대한안전경영과학회지
    • /
    • 제4권4호
    • /
    • pp.109-118
    • /
    • 2002
  • Such effects would be paid off in the right way only when management of the firms perform marketing activities focusing on long term effectiveness, which would drive company profits up and keep them for long. Demands of customers are being changed and varied. In this result with the advantage of mass marketing and database marketing have been drawing attentions from company. To fulfill these demands of customer, they need a concept of eCRM(Web based Customer Relationship Management), and go from selling products and services, or gathering customer requests, up to the phase of solving customer's problem by real time or previous action. With the help of internet, the frequency and speed of the problem solving has improved greatly. For these purposes, we try to determine the most important and most urgent factors in eCRM: utilization by using SN Ratio Decision making, one of the Multi-criteria decision-making methods SN Ratio Decision making is widely used for determining relative magnitude per evaluation item, i. e. priority on problems and is expected to make more systematic and objective evaluations than conventional methods do. Even in the present situation where any general criterion on eCRM dose not exist, utilization of eCRM is expected to be actively continued, which will cause many problems. In this regard, evaluating eCRM counts.

중국 동남아학의 발전과 과제 (Southeast Asian Studies in China: Progress and Problems)

  • 박사명
    • 동남아시아연구
    • /
    • 제20권3호
    • /
    • pp.1-40
    • /
    • 2010
  • China and Southeast Asia share intimate relationships based on close spatial, temporal and human conditions. Thus, Southeast Asian studies in China boast of a long lineage of 'traditional', 'embryonic', 'closed' and 'opened' Southeast Asian studies. In the modern period the 'embryonic Southeast Asian studies,' professing conservative nationalism based on traditional Sino-centric perspectives, accumulated elementary knowledges on the history of Sino-Southeast Asian relations and Chinese communities in Southeast Asia. On the other hand, 'closed Southeast Asian studies' standing for radical Communism suffered from chronic stagnation. After the Reform and Opening, 'opened Southeast Asian studies' recorded impressive progress in the restoration and development of Southeast Asian studies. Nevertheless, 'opened Southeast Asian studies' are faced with some serious problems such as biased perspectives, traditional methods, and national subjects. Most of all, it is urgent to overcome Sino-centric perspectives on Southeast Asia. Despite the opening of Southeast Asian studies to the diverse methods of modern social sciences, descriptive studies prevail over analytical ones. Regardless of the diversification of subjects, national questions such as the overseas Chinese and cross-border nationalities are prone to excessive nationalism.