• Title/Summary/Keyword: Limited use

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Status and Prospect of Weed Control Technology for Organic Farming (유기농업을 위한 잡초방제기술의 현재 미래)

  • 전용웅
    • Korean Journal of Organic Agriculture
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    • v.6 no.2
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    • pp.127-140
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    • 1998
  • Organic farming excludes any use of the herbicide. The present paper reviews what can be done for effective weed control with existing weed control technology by farmers crop-ping paddy rice, field crops, vegetables, and fruit trees. If condition of the crop-land-al-lows diversified rotational use of the paddy land as paddy and upland field would minimize weed problem. Practising this is limited in acreage due to extremely limited governmental investment to the land for the purpose. Secondly, rotation of crops in the upland field breaking life cycles of various weeds adapted to each crop should reduce the weed problem. This is also limited as only a few crops are making the farmer profitable. In addition climate and tolerance of crops to high and low temperature. Monsoon rains and poor drainage restrict the freedom of choice. For any crop land year-round multiple cropping in denser planting shall lessen the weed problem, this multiple cropping practiced by 1960s has been abandoned due to laborshortage and increased production cost. Deep flooding the rice is impractical at present in Korean. Mulching crop with transparent, black , or combinated polyethylene sheet, hs been in-creasingly used. Progresses in development and use of mulch with allelopathic crop residues. inexpensive paper mulch, allelopathic crop residues, inexpensive paper mulch, allelopathic crop cultivar development, recently developed ex-perimental weeding machinaries, flamers, microbial herbicides, biological control organisms, soil sterilization techniques have been critically reviewed for their adoption into existing in-tegrated weeding system. Unfortunately, information on cost-benifit, and labor-benefit, for the various methods above mentioned are lacking. Urgent need for the research on rational weeding in organic farming, and herbicide low-input farming is emphasized.

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The Development of a National-scale Land use /Land cover Change Detection System in Taiwan

  • Chen, Chi-Farn;Wang, Ann-Chiang;Chang, Li-Yu;chang, Ching-Yueh;Lee, Pei-Shan;cheng, Chao-Yao
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.567-569
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    • 2003
  • Because of the limited land resources, an efficient land use management to reach the sustainable development policy has become an urgent call in Taiwan. A long-term project entitled 'National land use monitoring program-the establishment of a land use change detection system' has been jointly conducted by both National Central University and Ministry of Interior since year of 2001. The main aim of the project is to use the remote sensing images to detect the land use changes on a national scale. This plan has been put into practice and indeed provides an effective assistance for land management.

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A Study of Machinima and Fair Use Doctrine in MMORPGs (MMORPGs에서의 머시니마와 공정이용 원칙에 관한 연구)

  • Suh, Kye-Won
    • Journal of Korea Multimedia Society
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    • v.20 no.6
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    • pp.960-968
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    • 2017
  • Machinima is a new medium of artistic expression that allows creators to produce faster and cheaper 3D animated works than ever before. However, the software owner controls all rights in the game. The principle of fair use allows for limited use of works without permission of the copyright owner for certain purposes. The application of the principle of fair use to any particular machinima will depend on the specific circumstances. In conclusion, in order to maintain the balance between the copyright owner and the user, the reasonable role of the court in Korea seems to be more important in interpreting the fair use clause.

SPACE-BASED OCEAN SURVEILLANCE AND SUPPORT CAPABILITY

  • Yang Chan-Su
    • Proceedings of the KSRS Conference
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    • 2005.10a
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    • pp.253-256
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    • 2005
  • The use of satellite remote sensing in maritime safety and security can aid in the detection of illegal fishing activities and provide more efficient use of limited aircraft or patrol craft resources. In the area of vessel traffic monitoring for commercial vessels, Vessel Traffic Service (VTS) which use the ground-based radar system have some difficulties in detecting moving ships due to the limited detection range. A virtual vessel traffic control system is introduced to contribute to prevent a marine accident such as collision and stranding from happening. Existing VTS has its limit. The virtual vessel traffic control system consists of both data acquisition by satellite remote sensing and a simulation of traffic environment stress based on the satellite data, remotely sensed data. And it could be used to provide timely and detailed information about the marine safety, including the location, speed and direction of ships, and help us operate vessels safely and efficiently. If environmental stress values are simulated for the ship information derived from satellite data, proper actions can be taken to prevent accidents. Since optical sensor has a high spatial resolution, JERS satellite data are used to track ships and extract their information. We present an algorithm of automatic identification of ship size and velocity. This paper lastly introduce the field testing results of ship detection by RADARSAT SAR imagery, and propose a new approach for a Vessel Monitoring System(VMS), including VTS, and SAR combination service.

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The Use of Fluoroquinolones in Children: Recent Advances (소아에서의 Fluoroquinolones 사용: 최근 경향을 중심으로)

  • Choi, Kyong Min
    • Pediatric Infection and Vaccine
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    • v.15 no.2
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    • pp.93-99
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    • 2008
  • Fluoroquinolones have been widely used since the development of nalidixic acid because of the excellent spectrum of activity, superior tissue penetration, and convenient route of administration. Despite such advantages, the usage in children is limited by concerns of toxicity to cartilage, damage to joints in animal studies, and an increase in antibiotic resistance. However, pediatric use has been increasing under certain circumstances with no report of such adverse effects. Further study is required prior to recommendation for general use of fluoroquinolones in children. The careful administration of fluoroquinolones is recommended only in limited circumstances, such as failure of primary antibiotics and lack of alternative antibiotics.

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Home care services: crisis and prospects (가정간호: 위기와 전망)

  • Song, Chong-Rye
    • Perspectives in Nursing Science
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    • v.6 no.1
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    • pp.55-65
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    • 2009
  • The Korean government introduced Home Care Services System to cut medical cost and make efficient use of limited medical resources because of increasing chronic diseases and the growing population of the elderly. The Korean government established measures to control the use of insurance services by restricting the number of nurse's visits to patient's home and by asking the patients to shoulder the transportation fee of nurses during the visit. Factors such as oversupply of hospital facilities, low price of home care services, high insurance coverage for hospital services and increased nuclear family set up resulted in the limited use of home care nursing services. The introduction of long-term care insurance in 2007 brought the decrease in the number of home care agencies and these agencies are facing a crisis today. The increase in chronic diseases and growing population of the elderly recently resulted in the need to control the high medical cost. Home care services for early discharge patients and chronic-severe disease patients will contribute in the reduction of medical cost at the same time improves the quality of patient's life. To catch up with the demands of the nation, accessibility to home care services should be improved and policies such as the expansion of home care services insurance coverage and promotion of establishing home care agencies should be considered.

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A Study on the Adaptation of the Traditional Costume for Fashion Design (패션디자인을 위한 전통복식의 활용현황에 관한 연구)

  • 금기숙
    • Journal of the Korean Society of Costume
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    • v.43
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    • pp.69-82
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    • 1999
  • This study is focused on the aesthetic application of traditional Korean dress(Items) to the contemporary fashion design. The results are as follows: (1) Each traditional dresses have revealed their aesthetic characteristics according to the periods or time. (2) The dresses of certain period figures and items had been limited in use in fashion design today. (3) The most favoured dresses adapted in fashion design were Chosun costume and female top items were the most preferred in use. (4) The colors applied to the fashion design were also limited. The bright and strong color groups were the most popular colors among fashion designers for their works. White which stands for the image of korean and their dresses were also preferred in use. Therfore experts in various arena of fashion business have to keep in mind following problems:(1) They have to study traditional dresses to enhance their historic knowledges and appreciate their aesthetic beauties (2) Various kinds of dresses from many periods items should be tried to adapt in fashion design by the designers. (3) Various male attires also should be adapted in fashion design. (4) various methodologies are recommended to apply in fashion design (5) fashion moods should be examined to make the krean fashion design rich The plastic characteristics of Korean traditional dresses could be interpreted as a tunnel to show the esprit of Korean and the aesthetic of Korean dresses through the works of fashion design for the international fashion markets or societies.

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2.5D Metaverse Game Engine using Java (자바를 이용한 2.5D 메타버스 게임 엔진 설계 및 구현)

  • Han, Seung Hoon;Kim, Eun Ju
    • Journal of Korea Multimedia Society
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    • v.10 no.2
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    • pp.260-268
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    • 2007
  • The game was mainly developed using the C/C++ language and DirectX in the current computer and mobile field. But, if we use these limited language, we can suppress a diversity of game engine when we design various game engines. In this paper, we wanted to develop the game us ing the Java to use the limited game development language with some variety and designed and developed the airplane combat game, the metaverse game engine as the game for the reuse and the extensibility of the code in the game engine us ing the re-use of the code of the features in the Java.

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Qualitative Study for Barriers for Medication and Health Care Service Use among the Visually Impaired and Hearing Impaired in Korea (시각장애인 또는 청각장애인의 의료기관 이용 및 의약품 안전사용 저해요인 관련 심층면접조사)

  • Lee, Soo-Hyun;Choi, Minji;Han, Euna
    • Korean Journal of Clinical Pharmacy
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    • v.31 no.4
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    • pp.311-323
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    • 2021
  • Objective: The disabled are in a blind spot for obtaining information on drugs, and the pharmacies' counseling on drug use is centered on non-disabled people. Few studies have investigated the current statuses of drug use by type of disability. The purpose of this study is to understand the drug use by type of disability and by life cycle of visually impaired and hearing impaired in Korea. Methods: The study participants consisted of 16 people with visually impairments, 12 people with hearing impairments. One in-depth interview was conducted per participant, and each interview was recorded and documented. Results: Common barriers against safe medication and medical service uses across disability types are 'lack of consideration and service for the disabled, limited access to medical facilities due to disability, limited access to information regarding medication use, psychological anxiety about drug use and side effects, and inconvenience regarding COVID-19 epidemic. The specific factors were 'difficulties in identifying proper medicines and following prescribed dosages' in the case of visually impaired, and 'problems with sign language interpretation system' for the hearing impaired. Conclusion: Disabled people are hindered from using medicines properly due to various factors. Based on the content derived from this study, it is necessary to eliminate the inhibition factors and devise specific measures for the safety of each type of disorder such as developing a method for medication counseling considering disabilities and establishing communication support systems.

Case studies in steel and composite design

  • Vesey, D.G.;Kwan, K.K.;Xu, L.
    • Steel and Composite Structures
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    • v.5 no.2_3
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    • pp.247-258
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    • 2005
  • This paper outlines the current steel design climate and describes some recent and unusual designs using structural steel or composite steel and concrete which have been carried out in Hong Kong and the East Asia region. Composite structural systems for very tall buildings are outlined. A case study of concept designs for one of these is presented. Two further case studies are presented: a refurbishment project where the use of steel and innovative strengthening techniques allowed an additional five stories to be built on an existing reinforced concrete frame and a monumental sculpture.