• 제목/요약/키워드: trend line

검색결과 783건 처리시간 0.024초

터널 3차원 절대변위 해석기법을 이용한 막장전방지반 예측 (Prediction of Ground Condition Changes Ahead of Tunnel Face Using Three-Dimensional Absolute Displacement Analysis)

  • 방준호;한일영
    • 한국터널지하공간학회 논문집
    • /
    • 제8권2호
    • /
    • pp.101-113
    • /
    • 2006
  • 안정된 암반에 터널을 굴착하는 경우 아칭효과에 의해 막장주변에 응력재배치가 발생하고 터널 막장 전방에 연약대가 존재하는 경우 응력재배치가 충분히 이루어지지 않아 막장과 연약대 사이의 응력집중으로 인해 변위가 발생하게 된다. 만일 막장에 근접하여 측점에서 종방향, 횡방향, 연직방향의 3차원 절대좌표가 측정되는 경우 막장전방의 지반거동이 반영된 3차원 절대변위가 산정되고, 이러한 3차원 절대변위의 분석을 통해 막장전방의 지반조건을 예측할 수 있게 된다. 본 연구에서는 4개 현장에서 측정된 3차원 변위비의 경향선과 천단침하의 영향선/경향선 분석을 실시하여 연약대 위치를 추정하였고, 3차원 절대변위의 분석에 의해 추정된 연약대 위치를 동일한 구간에서의 TSP탐사로 추정된 연약대 위치와 비교함으로써 3차원 절대변위 해석기법의 현장 적용성을 검증하였다.

  • PDF

온라인 후기를 통한 맞춤 웨딩한복의 디자인 고찰 2016년~2017년 (A study on custom Hanbok design through on-line review - From 2016 To 2017 -)

  • 류경옥
    • 한국의상디자인학회지
    • /
    • 제20권3호
    • /
    • pp.27-32
    • /
    • 2018
  • Hanbok is a our own history and tradition and is an icon of Korean history and culture. Today, the costumes are moving around the world fashion trend due to the development of mass media and internet at the same time. This is an important clue to marketing activities and can be used for predictive analysis. Although Hanbok is changing little by little every year, research on the trend of Hanbok is rare. This study analyzed the results of searching for 'Hanbok' as a keyword in Portal Site Naver and posting a customized purchase of Hanbok for marriage between 2016 and 2017. The analysis was based on analyzing the photos uploaded, and analyzing purchase reason in the On-line review. Most buyer of Hanbok purchased for prepare marriage. The choice of a customized hanbok is mostly to search online or to use the fair. The most important factor in choosing a custom Hanbok that appeared in online reviews is color and then price. The color of the jacket is mostly light color and the off-white color is the most used and the long skirt such as the pink system, the chorale system and the red system, and it can be seen that the pink skirt is overwhelmingly large. In the design of Hanbok, The sleeves were straight and narrow, and the length was the chest line. The collar were enlarged and widened. 고름 used the sole color instead of the jacket and skirt color, and it was narrow not long. skirt's pleats was wide, and designed to overlap with double color of the fabric.

온라인 과학기술정보자원의 분류체계에 대한 실천적 구성방안 (A Practical Scheme for the Classification of On-line Information Resources on Science and Technology)

  • 김유일;최성배;구영덕
    • 정보관리연구
    • /
    • 제37권4호
    • /
    • pp.125-139
    • /
    • 2006
  • 인터넷의 등장은 과학기술정보의 생산과 유통에 많은 변화를 초래하고 있다. 기존 과학기술정보들은 주로 문헌위주로 생산되었다. 그러나, 인터넷이 대중화되면서 온라인 과학기술정보들이 대량으로 생산되고 있으며, 그 활용이나 중요도 또한 과학기술분야의 문헌에 뒤지지 않고 있다. 온라인 과학기술정보의 양적 질적 성장으로 인해, 정보서비스기관들은 이들 정보들의 체계적인 관리와 효율적인 서비스를 고민하고 있으며, 다양한 정보관리방법을 모색하고 있다. 효율적인 정보 관리를 위한 방법 중의 하나인 분류체계는 주요한 이슈이며, 지금까지는 문헌정보 중심의 분류체계나 일반 웹사이트의 분류체계를 벤치마킹하여 온라인 과학기술정보를 위해 도입되는 경우가 많았다. 본고에서는 국가 차원의 표준분류를 이용하여, 온라인 과학기술정보를 위한 분류체계 구성방안을 실천적으로 제시하여 보았다.

전력통신을 위한 시장 동향 및 발전 전망 (Trends Research and Development View of Power Line Communication)

  • 김지호;이향범
    • 한국정보통신설비학회:학술대회논문집
    • /
    • 한국정보통신설비학회 2008년도 정보통신설비 학술대회
    • /
    • pp.573-578
    • /
    • 2008
  • While going through economic development for several decades, Korea has become an industrialized country, and the development of industrial technology accelerated the advent of the information opportunity era. The recent information oriented society has brought forth the development of new information communication technology that enables anybody to obtain information easily and simply, and recently power line communication technology is being developed that allows the use of the existing power line net-works as they are. Each advanced country that faced up to a riffle effect of power line communication technology that enables us to obtain information easily anywhere at anytime is engaged in fierce competition to be a leader in this technology and to preoccupy the standardization of power line communication technology. At this point, this study is to help Korea take the lead in information communication technology by proposing a direction for the standardization that Korean power line communication technology needs to head for by identifying the trend of the worldwide of power line communication technology.

  • PDF

Alexander McQueen의 패션작품에 나타난 하이브리드(Hybrid) 경향 분석 (A Study on Hybrid Trend upon Alexander McQueen's Work)

  • 이효진;김주연
    • 복식문화연구
    • /
    • 제13권2호
    • /
    • pp.300-313
    • /
    • 2005
  • Hybrid trend of the 21st century is an important basis to express fashion Alexander McQueen is a representative designer of Hybrid trend which combines heterogeneous elements into oneconcept. Accordingly, this study distributed and analyzed Hybrid trend which was in Alexander McQueen's work like below. First, there was a racial Hybrid trend which combined different local culture in shared space of the world in his fashion work and he challenged to Westernized ideal beauty with new recognition and knowledge about beside countries of Western Europe which were considered as not important culture due to perceiving relative value of a pluralist society and created new way aesthetic consciousness. Second, he expressed a historical character of a combination of tradition and modern by his fashion work based on wide historical knowledge of a dress. He created a new line in contrast to the past with a perfect design through combination of the style from the tradition with the parody and displayed his own design world. Third, he treated instability and disorder from the interior essential dissolution, thus he had a cultural character which broke down the boundary of cultural genre and style. This attitude showed transformation of constructivism and deconstruction view, secession and distortion, mixture, duplication, secession and insert by his fashion work.

  • PDF

신간선 전두부 디자인의 형상 변천 (The Changes of Shinkansen Vehicles' Nose Shape)

  • 김광명;한석우
    • 한국철도학회논문집
    • /
    • 제10권2호
    • /
    • pp.124-130
    • /
    • 2007
  • The emphasis of this paper is to find out the changes in length of nose in line with speed improvement and changes of the tendency in the shape of the nose in line with time series based on the Shinkansen vehicle. The length of the nose on the lines of high speed tends to get longer, however there is no proportion between the speed and the nose according to optimal design that was designed to reduce micro-pressure wave and air resistance. The Shinkansen vehicles, according to the shape, can be classified in to an Advanced Paraboloid shape, a Sharp-nosed shape, a Flat-nosed shape and an Organic Double-edged shape and is gradually changing in the trend of diversity and distinction. Hereafter, the design of the nose will be developed better into the design that will comprehend identity of manufacturer, region and culture on the basis of optimized aerodynamic shape.

교통편익증진 및 도심재창출을 위한 역세권개발 전략에 관한 연구 (A Study on the strategy of station areas development for transportation convenience and urban regeneration.)

  • 한광덕;선상훈;이호재
    • 한국철도학회:학술대회논문집
    • /
    • 한국철도학회 2008년도 추계학술대회 논문집
    • /
    • pp.1807-1820
    • /
    • 2008
  • The station area development planed to improve the old and narrowed station and to enhance the train passenger's convenience through private capital attraction in the past. But it has been faced with difficulty for the creative of transfer demand. Because of lean upon building facilities were caused by shortage of business profitability as to development of the upside a railway line, and lack of public utilities. The station area development requires that it's trend to large scale development of station areas, korail's direct development, deputation of specialty company to development, collaboration between local government and korail in development, diversification of process & installed facility, building multi-transfer center and one-stop transfer system. This trend caused by low profitability in development of the upside a railway line. The purposes of study are to make the system and law reflected to the property of station area development, investment in kind of needed land, and change railroad areas to high-rise and complex development, and make a forum between government and korail, etc.

  • PDF

Analysis of Off-Line and On-Line Partial Discharge in High Voltage Motor Stator Windings

  • Kim, Hee-Dong;Kong, Tae-Sik;Lee, Sang-Kil;Kim, Beom-Soo;Kim, Doo-Young
    • Journal of Electrical Engineering and Technology
    • /
    • 제10권3호
    • /
    • pp.1086-1092
    • /
    • 2015
  • The off-line and on-line partial discharge (PD) in the stator winding of three high-voltage (HV) motors (1,400 HP, 6.6 kV) is measured and analyzed in this paper. The off-line PD is measured at high values between 24,300 ~ 36,100 pC after 18 years of motor operation. Spare replacement motors were not available for testing the degree of deterioration of the stator windings in standstill status. Therefore, on-line periodic analysis was conducted to monitor the trend of PD after installing a ceramic sensor (110 pF, 6.6 kV) in the terminal box for each phase of each motor. In the stator winding of the No.1 and No.2 HV motors, which showed high magnitudes of off-line PD and low magnitudes of on-line PD, defects are expected to appear in the neutral end of the winding. On the contrary, in the stator windings of the No.3 HV motor, which exhibits high off-line and on-line PD magnitude, defects are expected to appear in the terminal end of the winding where a voltage close to the phase voltage is applied.

강판 열간압연의 기술개발 동향 (Recent Trend in Hot Rolling Technology of Steels)

  • 신수철
    • 한국소성가공학회:학술대회논문집
    • /
    • 한국소성가공학회 1999년도 제3회 압연심포지엄 논문집 압연기술의 미래개척 (Exploitation of Future Rolling Technologies)
    • /
    • pp.3-9
    • /
    • 1999
  • The recent technical trend in hot rolling of steel can be described as process and product technologies which have been progressed with modern mill equipment and computers. Precise gauge and width control can be achieved by up-to-date control methods such as AGC and AWC systems. Roll benders and various shape control systems enabled high quality flatness and crown control. Mills can produce higher tensile materials by new process based on process metallurgy. The use of high speed steel rolls and on line roll grinders make the schedule free rolling easier which results in cost saving. Process itself goes toward continuous and simple flow type which has lower operation. Endless rolling and strip casting are examples of the trend. Materials with higher tensile strength and various functions have been developed in last years to meet the customer's needs and this trend will continue.

  • PDF

超音波 信號 數의 移動平均에 의한 電力用 變壓器 豫防診 (Preventive diagnosis of the power transformer by the moving average of ultrasonic signal number)

  • 권동진;곽희로;정상진;김정부
    • 대한전기학회논문지
    • /
    • 제45권3호
    • /
    • pp.432-437
    • /
    • 1996
  • This paper describes a diagnostic technique of power transformers by on-line detection of ultrasonic signals. A trend of partial discharge variation in a real transformer was estimated by counting the number of ultrasonic signals until insulation paper in the point-to-plane electrode is punctured. The number of electrical signals is closely related to the ultrasonic signals generated by partial discharge. The trend of the ultrasonic signal number could easily be distinguished by taking moving average. The insulation failure due to partial discharge in transformers can be predicted based on the trend analysis of ultrasonic signal number caused by partial discharge. (author). 14 refs., 10 figs.

  • PDF