• 제목/요약/키워드: Study Trend

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DWDM 시스템동향 및 광네트워크 발전방향 (A study on the technological trend of the DWDM system and development plan for Optical Network)

  • 이성원
    • 한국경영과학회:학술대회논문집
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    • 한국경영과학회 2001년도 추계학술대회 논문집
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    • pp.354-357
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    • 2001
  • Optical transport has been sucessfully developed as a fast information transfer since 1970s, and a WDM system, based on the wavelength division multiplexing technique, was implemented to the backbone network. The WDM technique is able to improve its data traffic by utilizing its optical fiber efficiently, and is suitable for an easy network operation and management. Therefore, trend for DWDM, which is known to be one of DWM system being currently used, and the direction for optical network development will be investigated in this study.

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콘크리트 표면처리용 시멘트 액체방수제의 품질동향 (A Trend on Quality Transformation of Waterproof Agent and Admixture of Cement for Concrete Surface Treatment)

  • 최은수;김영근;박헌일;정순자
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2003년도 가을 학술발표회 논문집
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    • pp.557-560
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    • 2003
  • This study deals with the method of test for waterproof agent and admixture of cement, and especially, the effect on bond strength between waterproofing layer and mortar or concrete substrate in building construction. Quality of that has been managed according to it of construction standard manual, housing construction manual, 건, and Q until performance of that is specified by law as KS F 4923. Therefore this study focus on the quality and trend for a fatty system and PCM(Polymer Cement Mortar)

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외식소비자의 건강메뉴에 대한 태도에 관한 연구 (A Study of Attitude toward Healthy Menu)

  • 이재련;엄영호
    • 한국조리학회지
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    • 제10권2호
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    • pp.16-29
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    • 2004
  • Today, well-being appears as new trend-code all of society. Likewise foodservice industry is influenced by that trend and as a result general menu items tend to change into healthy menu items. Therefore, the purpose of this study is to examine the customers attitude toward healthy menu. One of major research finding is that consumers better interested to healthy menu than past and have potential needs to consume it. So need to extent healthy menu market and develop to consume of healthy menu, should get competitiveness on tastes and price of healthy menu and to segment of healthy menu consumer market.

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컨테이너 보안동향과 대응방안에 관한 연구 (A study on the trend of container security and its Countermeasures)

  • 김태우
    • 대한안전경영과학회지
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    • 제11권2호
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    • pp.235-240
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    • 2009
  • Approximately 95% of the world's trade moves by containers, primarily on large ships, but also on trains, trucks, and barges. The system is efficient and economical, but vulnerable. However, the rise of terrorism and the possibility that a container could be used to transport or actually be the delivery vehicle for weapons of mass destruction or high explosives have made it imperative that the security of shipping container system be greatly improved. This study proposed a trend of container security and its Countermeasures.

The effects of dual-task training on ambulatory abilities of stroke patients: Review of the latest trend

  • Lee, Gyu Chang;Choi, Won Jae
    • Physical Therapy Rehabilitation Science
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    • 제1권1호
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    • pp.1-5
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    • 2012
  • Objective: Dual-task walking deficits impact functional daily life, which often requires walking while performing simultaneous tasks such as talking, thinking or carrying an object. This study is to find out the latest trend of dual-task training's influence on ambulatory abilities of a stroke patient. Design: Systematic review of randomized controlled trials. Methods: This literature review was conducted in Pubmed and Sciencedirect with the follwing key words:stroke, cerebro-vascular accident, hemiplegia, gait, rehabilitation, exercise. 7 studies were chosen in findings by search tool. 3 studies were case study, 3 studies were cross sectional observational study and 1 study was randomized controlled trial. Results: It was found that stroke patients have difficulties in doing 2 motor tasks simultaneously and when they do 2 tasks, one is done in a naturally preferred activity areas. Moreover, when simply applying dual-tasks, the walking speed decreased. Meanwhile, when applying them through training, the speed increased. This showed the improvement of effective task-implementation abilities after dual-task training using task-integration models. Conclusions: In the beginning of the 2000s, dual-tasks were implemented by simply combining walking and cognition or exercise task, and the results of this study suggest that subjects with stroke have difficulty performing dual task. However, the latest trend is to let patients do the dual-task training by combining it with virtual reality. Therefore, dual task training could be performed in a safe in the environment such as virtual reality or augment reality.

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한국초등과학교육의 최근 연구 동향 분석 (An Analysis on the Recent Research Trend in Korean Elementary Science Education)

  • 이아람;홍영식
    • 한국초등과학교육학회지:초등과학교육
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    • 제32권3호
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    • pp.260-268
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    • 2013
  • With the development of science and technology, an effort to investigate the current research trend of elementary science education will lead to future directions for elementary science education. This study set out to analyze papers published in Elementary Science Education by quantity, subject and methodology for the last ten years. The results were as follows: First, the number of papers has continuously increased for the last 30 years. Second, as for categorization by the functions of elementary science education, the number of papers was mainly published in the field of teacher education, which was followed by learning processes and teaching methods in the order. Third, in the field of the research subjects of elementary science education, many researches were conducted on scientific inquiries and concepts traditionally emphasized in elementary science education, and on gifted education recently implemented as part of national policy. Fourth, as for categorization by the methodologies of elementary science education, a survey study was the most popular, being followed by experimental study and literature study in the order. In recent years, researches based on the case study methodology have visibly grown in numbers, which seems to part of efforts to find implications with new methodologies among researchers facing limitations with the old ones in the middle of uniqueness called education.

원형베일 조사료용 트랙터 견인형 세절.급여기 개발(II) - 이용실태 및 경제성 분석 - (Development of a Tractor Attached Roughage Cut-feeder for Round Bale(II) - Recent Trend of Traditional Cutting System and Feasibility Study -)

  • 하유신;홍동혁;박경규
    • Journal of Biosystems Engineering
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    • 제34권4호
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    • pp.228-233
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    • 2009
  • In order to cut the round bale easily, a roughage cut-feeder for the round bale was developed in this study. This study consists of two parts. One is development of a cutting mechanism and a performance test reported in the previous paper. This is the second part of the study. For the study, recent trend of traditional cutting system was analyzed. Also, cost of the prototype cut-feeder was analyzed and determine the break-even point of farm size was determined by comparing with traditional method using a traditional cutter. A prototype cut-feeder was investigated with the fact that working performance, fiber length and shape of roughage and feeding quality was good. Operating cost of the prototype cut-feeder decreased rapidly with an increase of farm size. Break-even point in terms of farm size was 36 heads for beef and 28 heads for dairy. Also, costs estimated were 118,000 won/head year and 148,000 won/head year, respectively.

Jeffrey Fulvimari의 작품을 응용한 키덜트 패션 디자인 - CAD 시스템을 이용하여 - (Kidult Fashion Design Appling Jeffrey Fulvimari's Work - Using CAD System -)

  • 장정임;이연희
    • 복식문화연구
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    • 제15권4호
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    • pp.647-660
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    • 2007
  • The purpose of this study is to develop 'fashion design for kidults' appling fashion illustrator Jeffrey Fulvimari's work which is offering inspiration through collaboration with artists of various fields, and it was also used to advertisement visual of many products. The method of the study is composed of literature study and development of fashion design based on it. The literature study is referred to books of fashion, books of trend and data collected through Internet, and design results are presented using Adobe Illustrator 10 and Photoshop 7.0 programs. This study chose images which give cute and lively feeling among famous fashion illustrator Jeffrey Fulvimari's works on the basis of influence of kidult trend appeared in modern fashion and presented kidult fashion design that expresses naive & happy memories of childhood girlishly and sexily using CAD system. Appling images appeared in Jeffrey's work to kidult fashion design could confirm that artist's work has a realizable possibility as high value-added design component, and it answered to kidult trend which is expressed variously in modern fashion.

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2000년 이후 중대형 아파트의 실내디자인 트렌드 분석 연구 (A Study on Interior Design Trend Analysis of Medium-Large size Apartment after year 2000)

  • 박지민;윤정숙
    • 한국실내디자인학회:학술대회논문집
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    • 한국실내디자인학회 2008년도 춘계학술발표대회 논문집
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    • pp.155-158
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    • 2008
  • Today, apartment is the primary housing type in Korea. In the past, there were many apartment floor plans in the same design way. There have been changes to complex and luxury plans in these days because people want to fit their own needs and wants to the plans. The primary purpose of this study is to analyze interior design trend of medium-large size apartment after year 2000. For that, this study used 7 different construction companies, 13 apartment complexes and 30 unit plan cases which were on sale from April 2007 to April 2008 in Seoul and the Metropolitan area. The results of analysis are as follows: First, most cases had 4LDK and 2bathroom with a dress-room. Second, characteristics of the interior design showed that the variety finish materials used in the units. For wall finish materials, wallpapers were used in mostly regardless in different areas. For floor finish materials, stone and tile were used in similar ratio in the entrance area whereas wood floor mostly was used in living room and kitchen areas. This study shows some significant characteristics of today's apartment even it has some limitations because of small amount of survey cases. More detailed and deeper study will be done continuously.

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인구통계적 변인에 따른 부분색채화장 이미지지각과 선호도에 관한 연구 (A Study on Perception of Face Image of Point Make-up by demographic variables and preferences of the point make-up)

  • 이연희;양취경
    • 한국의류학회지
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    • 제26권3_4호
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    • pp.515-526
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    • 2002
  • The purpose of this study will find out the primary element of point make-up image perception, the point make-up image perception by point make-up trend and demographic variables such as sex and age. And this study will show the preferences of the point make-up. This study is based on the quasi-experimental study method with contents analysis method and experimental method. And content ana]isis is primarily based on the color trend and cosmetics colors which were suggested by a fashion magazine. Experiment was conducted by gathering opinions by poll, with the model wearing different make-ups and checking the typical reactions of people. To summarize, sex and age were found out to be influential variable to distinguish color perception abilities. This could verify that point make-up was important factor, influencing on the face image perception. also, face make-up effect could be maximized with Natural or common color groups rather than trend-oriented color group selections. And the polled preferred Natural color group with no point make-up or Classic color group to any other color group.