• 제목/요약/키워드: time-trend

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국내 스포츠 캐주얼웨어의 디자인 특성과 트렌드 경향 분석 - 액티브 스포츠 웨어와의 비교 분석에 기초하여 - (Analysis of Design Characteristic and Trend of Spore Casual Ware - Based on Comparison with Active Spore Ware -)

  • 이인성;이상영;김태희
    • 한국의상디자인학회지
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    • 제8권1호
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    • pp.25-36
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    • 2006
  • This paper investigates recent trend and characteristic of sports casual ware. By literature review and case study, it compares active sports casual ware with sports ware and analyzes how the latter has been applied to the former. Further, it attempts to assess future design trend of sports casual ware The result of the analysis of 2004 F/W season's trend is the following. Most brands emphasize classic factors and, at the same time, adopts recent trends. They effectively use splendid colors to expose brand identity, and take advantage of sports games as a marketing tool of special lines. In addition, designs emphasizing women's sexy and healthy style are popular in sports casual ware. Recent trend is characterized by cross-over or hybrid. Active sports ware is expanded to a mixture with casual ware or casual ware featured sportive details and images.

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계절 Mann-Kendall 검정을 이용한 낙동강 유역의 월별 수질 장기 경향성 분석 (Trend Analysis of Monthly Water Quality Data in Nakdong River Based on Seasonal Mann-Kendall Test)

  • 윤정혜;황세운;김동현;김상민
    • 한국농공학회논문집
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    • 제57권6호
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    • pp.153-162
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    • 2015
  • In this study, we analyzed the trends of water quality along the main stream in Nakdong river basin using the recent data and seasonal Mann-Kendall test. Monthly averaged values of DO, BOD, SS, COD, TN, and TP from 1989 to 2014 for 14 stations (including 2 TMDLs stations) were used in the study. The trend analysis results showed that BOD and TP at most stations has decreasing temporal trend except a few stations while COD and SS showed increasing trend at most stations. Temporal trends in TN at 8 stations were found to be statistically significant and 5 of them showed increasing temporal trend. Temporally averaged BOD, COD, TN and TP were generally increasing as going downstream and the worst water quality were found at Goryeong and Hyunpung station. Overall, water quality of Nakdong river especially in COD, SS, and TN getting worse in time at most stations and as going downstream.

A Real-Time Integrated Hierarchical Temporal Memory Network for the Real-Time Continuous Multi-Interval Prediction of Data Streams

  • Kang, Hyun-Syug
    • Journal of Information Processing Systems
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    • 제11권1호
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    • pp.39-56
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    • 2015
  • Continuous multi-interval prediction (CMIP) is used to continuously predict the trend of a data stream based on various intervals simultaneously. The continuous integrated hierarchical temporal memory (CIHTM) network performs well in CMIP. However, it is not suitable for CMIP in real-time mode, especially when the number of prediction intervals is increased. In this paper, we propose a real-time integrated hierarchical temporal memory (RIHTM) network by introducing a new type of node, which is called a Zeta1FirstSpecializedQueueNode (ZFSQNode), for the real-time continuous multi-interval prediction (RCMIP) of data streams. The ZFSQNode is constructed by using a specialized circular queue (sQUEUE) together with the modules of original hierarchical temporal memory (HTM) nodes. By using a simple structure and the easy operation characteristics of the sQUEUE, entire prediction operations are integrated in the ZFSQNode. In particular, we employed only one ZFSQNode in each level of the RIHTM network during the prediction stage to generate different intervals of prediction results. The RIHTM network efficiently reduces the response time. Our performance evaluation showed that the RIHTM was satisfied to continuously predict the trend of data streams with multi-intervals in the real-time mode.

대학생 주거관의 시계열적 비교 (Comparison on the Time series of Housing Viewpoint of University Student)

  • 안옥희;강혜경;조영미
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2009년 춘계학술발표대회 논문집
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    • pp.243-246
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    • 2009
  • Housing distribution rate in our country has been continuously increased with economic growth, but residential plans satisfying the demands of residents are still not perfect yet. The demands of residents can be predicted by analyzing the housing viewpoint of residents. And also, the housing viewpoint can change according to various environmental changes, so it's important for us to understand the trend of change. Therefore, the housing viewpoints of university students who will be subjective residents of houses in future were analyzed by observing change due to trend of time. Target for this study is female university students in 20s. A portion of previously presented material (Korean Home Economics Association 37,1, 67-78) was used as data for 1998 and a questionnaire with 171 female university students was conducted on December 2008 for data for 2008. The following result was drawn from examination of change in the housing viewpoint due to trend of time by comparing the housing viewpoint of university students between 1998 and 2008. First, importance of was decreased and importance of was increased in functions of residence. Second, Most students thought and regardless of the time passage as their opinions on housing. And also, most students considered a living room as the most important space inside of a house regardless of the time passage and the ratio of considering a living room as the most important space was more increased.

문턱값과 추세분석을 이용한 지하수 수질관리체계 구축을 위한 연구 (Suggestion of a Groundwater Quality Management Framework Using Threshold Values and Trend Analysis)

  • 안현실;진성욱;이수재;현윤정;윤희성;김락현
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제20권7호
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    • pp.112-120
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    • 2015
  • Statistical trend analysis using the data from the National Groundwater Quality Monitoring Network (NGQMN) of Korea was conducted to establish a new groundwater quality management framework. Sen’s test, a non-parametric statistical method for trend analysis, was used to determine the linear trend of the groundwater quality data. The analysis was conducted at different confidence levels (i.e., at 70, 80, 90, 95, and 99% confidence levels) for three of groundwater quality parameters, i.e., nitrate-nitrogen, chloride, and pH, which have sufficient time series of the NGQMN data between 2007 and 2013. The results showed that different trends can be determined for different depths even for the same monitoring site and the numbers of wells having significant trends vary with different confidence levels. The wells with increasing or decreasing trends were far less than the wells with no trend. Chloride had more wells with increasing trend than other parameters. On the other hand, nitrate-nitrogen had the most wells with increasing trend and concentration exceeding 75% of the threshold values (TVs). Based on the methodology used for this study, we suggest including groundwater TVs and trend analysis to evaluate groundwater quality and to establish an advanced groundwater quality management framework.

철도신호 안전성 규격의 세계화 추세와 우리의 대응 (The Globalization Trend of Railway Signalling Safety Standards and its Counterplans)

  • 김종기;조연옥;이종우;정의진
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2002년도 춘계학술대회 논문집
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    • pp.486-491
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    • 2002
  • As the European Union has strengthened and computerized signalling systems have been widely used, the European common standards for the safety of railway signalling systems such as EN 50126, EN 50128, ENV 50129, EN 50159 began to be published from 1996 in CENELEC. At that time, a safety guideline, 'Safety Guidelines for Computerized Train Control and Protection Systems' was published in Japan. The Korean National Railroad also published a safety recommendation for the train control systems with taking into account the Korean railway conditions. Now the preparations for IEC/TC9 Standards are well underway and these standards correspond to CENELEC Standards referred above. These movements and activities are to cope with many technical and operational changes and to reflect the globalization trend of railway sectors along with the computerization of signalling devices. In this connection, this paper studies the globaliztion trend in the safety standards for railway signalling systems and discusses the counterplans for the trend.

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Analysis of Laughter Therapy Trend Using Text Network Analysis and Topic Modeling

  • LEE, Do-Young
    • 웰빙융합연구
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    • 제5권4호
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    • pp.33-37
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    • 2022
  • Purpose: This study aims to understand the trend and central concept of domestic researches on laughter therapy. For the analysis, this study used total 72 theses verified by inputting the keyword 'laughter therapy' from 2007 to 2021. Research design, data and methodology: This study performed the development and analysis of keyword co-occurrence network, analyzed the types of researches through topic modeling, and verified the visualized word cloud and sociogram. The keyword data that was cleaned through preprocessing, was analyzed in the method of centrality analysis and topic modeling through the 1-mode matrix conversion process by using the NetMiner (version 4.4) Program. Results: The keywords that most appeared for last 14 years were laughter therapy, depression, the elderly, and stress. The five topics analyzed in thesis data from 2007 to 2021 were therapy, cognitive behavior, quality of life, stress, and the elderly. Conclusions: This study understood the flow and trend of research topics of domestic laughter therapy for last 14 years, and there should be continuous researches on laughter therapy, which reflects the flow of time in the future.

소셜데이터 및 ARIMA 분석을 활용한 소비자 관점의 헬스케어 기술수요 예측 연구 (A Study on the Demand Forecasting of Healthcare Technology from a Consumer Perspective : Using Social Data and ARIMA Model Approach)

  • 양동원;이준기
    • 한국IT서비스학회지
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    • 제19권4호
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    • pp.49-61
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    • 2020
  • Prior studies on technology predictions attempted to predict the emergence and spread of emerging technologies through the analysis of correlations and changes between data using objective data such as patents and research papers. Most of the previous studies predicted future technologies only from the viewpoint of technology development. Therefore, this study intends to conduct technical forecasting from the perspective of the consumer by using keyword search frequency of search portals such as NAVER before and after the introduction of emerging technologies. In this study, we analyzed healthcare technologies into three types : measurement technology, platform technology, and remote service technology. And for the keyword analysis on the healthcare, we converted the classification of technology perspective into the keyword classification of consumer perspective. (Blood pressure and blood sugar, healthcare diagnosis, appointment and prescription, and remote diagnosis and prescription) Naver Trend is used to analyze keyword trends from a consumer perspective. We also used the ARIMA model as a technology prediction model. Analyzing the search frequency (Naver trend) over 44 months, the final ARIMA models that can predict three types of healthcare technology keyword trends were estimated as "ARIMA (1,2,1) (1,0,0)", "ARIMA (0,1,0) (1,0,0)", "ARIMA (1,1,0) (0,0,0)". In addition, it was confirmed that the values predicted by the time series prediction model and the actual values for 44 months were moving in almost similar patterns in all intervals. Therefore, we can confirm that this time series prediction model for healthcare technology is very suitable.

여대생 헤어스타일 분석 - 1980년부터 2003년까지의 졸업앨범사진을 중심으로 - (Analysis on the Hairstyle of Female University Students - Centering around Commencement Albums from 1980 to 2003 -)

  • 박수진;박길순;김서연
    • 복식
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    • 제55권3호
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    • pp.59-68
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    • 2005
  • The purpose of this study is to examine the changing process of hairstyle and the fashion trend of hairstyle in the environment where it is possible to change one's hairstyle easily arid .display oneself in various ways and the interest in hairstyle is increasing. To examine the change of real university girls' hairstyle, I selected commencement pictures of Chungnam University as material. As a method of analysis, I compared and anaylized each time period's fashion trend and the change of real university girls' hairstyle after abstracting formative element of hairstyle on the basis of preceding studies on hairstyle and measuring frequency by element of each time period. Analyzing university girls' pictures showed that many of them had curls when various perms appeared and majority of them had straight style when straight perm and magic iron appeared. When products of hairstyling were on the market and globalization changed sense of beauty, it was highly popular to set up forelock with hairstyling products. In a pluralistic social environment, desire for color aspect other than formative aspect increased. As various hairdyes were developed, hairdyeing was generalized and university girls came to accept it as natural. Fashion trend of each time period and university girls' hairstyle showed generally similar trend. In mid 1980s, curl was popular, and, in late 1980s, straight style and setting up forelock with hairstyling products were on the increase. In early 1990s, the emergence of coating perm which combined perm and hairdyeing increased hairdyeing. In late 1990s, straight style was popular and layers expressed naturalness. In early 2000s, university girls showed off their long hair in various ways and hairdyeing drastically increased.

전통정자의 표준모델 개발 (Development of Standard Model for Traditional Pavilion)

  • 홍광표;심대섭;이혁재
    • 문화기술의 융합
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    • 제6권2호
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    • pp.387-395
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    • 2020
  • 한국 정자의 표준모델은 한국전통의 미를 구현하고 시대적 흐름을 반영할 수 있으며, 보편적이고 현실적인 모델을 개발 함과 동시에 국제적으로 한국 전통미를 알릴 수 있는 계기가 될 수 있다. 따라서 본 연구에서는 한국 전통정자의 사례조사를 통해 우리 고유의 전통기술을 계승하고 한국정자의 정통성을 보존하면서 생활화, 산업화, 활성화, 세계화 할 수 있는 표준모델을 개발하는 것을 목적으로 한다. 사례분석과 현대의 트랜드를 고려하여 각 부분별로 계획을 진행하여 전통정자의 대표적인 유형인 사모정, 육각정, 팔각정에 대해서 표준모델을 제시할 수 있었다. 표준모델은 정통성을 고려하면서도 활용도를 높이기 위해 난간마루를 설치하고 계자난간을 설치하는 등의 디자인 트랜드에 약간의 변화를 주었다. 이렇게 제시된 표준모델은 현재의 디자인 트랜드가 반영된 것으로 추후에는 그 때의 트랜드에 따라 다른 형태로 변경될 수 있다. 이번에 개발된 한국 정자의 표준모델은 한국전통의 미를 재현하면서도 보편적이고 현실적인 모델이라고 할 수 있다.