• Title/Summary/Keyword: Visual analysis

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Practicalities of structural health monitoring

  • Shrive, P.L.;Brown, T.G.;Shrive, N.G.
    • Smart Structures and Systems
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    • v.5 no.4
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    • pp.357-367
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    • 2009
  • Structural Health Monitoring (SHM), particularly remote monitoring, is an emerging field with great potential to help infrastructure owners obtain more and up-to-date knowledge of their structures. The methodology could provide supplemental information to guide the frequency and extent of visual inspections, and the possible need for maintenance. The instrumentation for a SHM system needs to be developed with longevity and the objectives for the system in mind. Sensors need to be selected for reliability and durability, sited where they provide the maximum information for the objectives, and where they can be accessed and replaced should the need arise over the monitoring period. With the rapid changes now occurring with sensors and software, flexibility needs to be in place to allow the system to be upgraded over time. Damage detection needs to be considered in terms of the type of damage that needs to be detected, informing maintenance requirements, and how detection can be achieved. Current vibration analysis techniques appear not yet to have achieved the necessary sensitivity for that purpose. Societal factors will influence the design of a SHM system in terms of the sophistication of the instrumentation and methodology employed.

A Study on the Relationship between Primary Dysmenorrhea and Pulse Energy Measured by 3D Blood Pressure Pulse Analyzer (원발성 월경곤란증과 맥의 관련성 연구)

  • Lee, Ji-Yeon;Yoon, Young-Jin
    • The Journal of Korean Obstetrics and Gynecology
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    • v.28 no.4
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    • pp.31-45
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    • 2015
  • Objectives : The purpose of this study is to examine the relationship between the symptoms of primary dysmenorrhea and pulse energy of Chon, Gwan and Cheok. Methods The subjects of this study who had certain range of dysmenorrhea symptom. The degree of dysmenorrhea were assessed by Visual Analog Scale (VAS), Multidimensional Verbal Rating Scale (MVRS), Cox Menstrual Symptom Scale (CMSS) and measured by 3D Blood Pressure Pulse Analyzer(3D-MAC) tests at menstruation start date. Data analysis included descriptive statistics and multiple linear regression using the SPSS/WIN 18.0 program. Results : The induced results are as follows;The induced results are as follows 1. There were no significant relationship between the pulse energy and the sum values of VAS, MVRS and checking part of severity of CMSS. 2. The frequency domain of CMSS were significantly associated with pulse energy. 3. In linear regression models, the model of Left Chon had the especially highest value of explanatory power. (R 2 = 0.517) Conclusions : The pulse energy changes are related to the symptoms of primary dysmenorrhea.

Validity Evaluation of Scale Model Experiments in Architectural Daylighting Performance (자연채광 성능평가에 있어서 축소모형실험 방법론의 유용성 검증에 관한 연구)

  • Kim, J.T.;Chung, Y.G.;Jeong, I.Y.;Hwang, M.K.
    • Journal of the Korean Solar Energy Society
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    • v.22 no.2
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    • pp.61-69
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    • 2002
  • Daylighting is a powerful vehicle of architectural expression and provides buildings a living quality due to constantly changing properties in intensity and color. As an environmental system, daylighting should be subjected to the same level of rigorous analysis and review that any environmental system receives. For example, increasing cooling loads and causing visual displeasure are easily occurred owing to the excessive sunlight through windows. Therefore, daylighting performance attributes and physical characteristics must be described qualitatively and quantitatively in early design process. In various architectural daylighting performance evaluation methods, the scale model experiment can be applied due to it's simplicity and usefulness. So, this study aims to evaluate the validation of scale model experiments in architectural daylighting performance. For the purpose, two scale model experiments under clear sky are conducted. And, the validation of the experiments are evaluated by computer simulations.

A Study on the Alighieri Dante's La Divina Commedia focused on Wuwei-ziran & Humanism in Length animation '9' (단테의 신곡으로 본 장편애니메이션 '9'의 무위자연과 인본주의 연구)

  • Park, Yoon-sung
    • Journal of Digital Convergence
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    • v.15 no.1
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    • pp.435-441
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    • 2017
  • In this study, through the Wuwei-ziran of Alighieri Dante's La Divina Commedia & Humanism and Chuang-tzu, revealed in the full-length animation '9' reflecting the loss of humanity and the recovery and the artististic consciousness of producing animation with a new world view, It is an animation case analysis that restores humanity and awakens the inside of human being. Wuwei-ziran of Chuang-tzu is a way of life which helps humans to flow through relation and coordination. Wuwei-ziran is a way of life of dharma where all things are harmonized by the subjective self It is the beginning.

Low Back Pain and Job Stress in Hospital Nurses (종합병원 간호사의 요통과 직무스트레스)

  • Kim, Yeon-Hee;Kim, Young-Sin;Ahn, Yang-Heui
    • Journal of muscle and joint health
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    • v.14 no.1
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    • pp.5-12
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    • 2007
  • Purpose: The purpose of the study was to identify the relationship between low back pain and job stress in hospital nurses. Method: A descriptive correlation research design was employed. The participants were 355 nurses who worked in a general hospital in W city Kangwon-do and consented to participate in this study. The Visual Analog Scale and job stress scale were used in this study. Analysis included descriptive statistics, t-test, ANOVA, and partial correlation coefficients. Results: Experience of low back pain for nurse in the past was 86.5% and in the present was 67.5% for low back pain which measured an average of 4.4 points for the level of low back pain. The mean score for job stress was relatively low(M=47.2). Job demand, organization system, job instability and conflict in relationships contributed to high stress scores, instead inappropriate compensation, job culture, and job autonomy contributed to low stress. There was a significant relationship between low back pain and job stress. Conclusion: These results suggest that further research is needed to develop programs to prevention and management of low back pain for nurses.

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A Study on Low Back Pain Prevalence Rate and Related Factors among Emergency Medical Technicians Working at Fire Stations (소방서에 근무하는 응급의료종사자의 요통 유병 실태 및 관련 요인 분석)

  • Ham, Young-Lim;Ahn, Yang-Heui
    • Journal of muscle and joint health
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    • v.15 no.2
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    • pp.175-182
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    • 2008
  • Purpose: The purpose of the study was to identify low pain prevalence rate and factors affecting low back pain in emergency medical technicians. Method: A descriptive relationship research design was utilized. The participants were 74 emergency medical technicians who worked at fire stations in W and J city and agreed to participate in this study. Data were collected between April and August 2008 using a questionnaire, which included demographic factors, severity of low back pain using a visual analog scale, factors related to low back pain and health behavior, and BMI. Descriptive statistics and multiple regression were performed for data analysis. Results: 85.1% of emergency medical technicians experienced low back pain. The mean score of low back pain was relatively low (M=4.0, SD=2.33). Significant factors affecting low back pain were found to be age, marital status, exercise, hours of standing work, and BMI. These variables explained 35.1% of variance in low back pain (F=8.45, p<.001). Conclusion: These results suggest that further research is needed to develop interventions for prevention and management of low back pain among emergency medical technicians.

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Application of Sun Control Devices and Energy Conservation (Theory and Practice) (주광제어 장치를 이용한 건물의 에너지 절약(이론 및 실제))

  • Han, Hyun-Joo;Cho, Yil-Sik;Song, In-Choon
    • Solar Energy
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    • v.10 no.2
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    • pp.77-85
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    • 1990
  • In the present analysis, a number of sun control devices are examined for their performance in promoting the interior visual environment. Two exemplary cases are introduced for their excellence in harnessing the concept of daylighting and passive concepts. Of these, the Johnson Controls branch office building in Salt Lake City manifests the effectiveness of light shelves and clerestory windows in implementing these concepts. Distinct optical characteristics are found for overhangs, light shelves, louvers, and blinds as they interfere with the path of sunlight. Substantial amount of energy could be saved if the fundamentals of these devices are truly understood in their application to residential and commercial buildings. Sustained efforts should be made in this regard by the builders, architects, energy consultants, and educators who make contributions in energy management.

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A Study on the Typological Interpretation of Korean Traditional Space in terms of Text Hermeneutics - Focusing on Hjelmslev's Structuralism and Lacan's unconscious structure for contemporary Application - (텍스트해석학적 관점에서 한국전통공간의 유형해석에 관한 연구 - 현대적 디자인 적용을 위한 옐름슬레우의 구조주의 이론과 라캉의 무의식적 구조를 중심으로 -)

  • Park Kyung-Ae
    • Korean Institute of Interior Design Journal
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    • v.15 no.4 s.57
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    • pp.64-72
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    • 2006
  • The purpose of this study is to interpret Korean traditional space as text on the basis of Structuralism. The process of this study is illustrated as follows: At first, this research contains basic concepts and theories of Structuralism and discusses the possibilities of typological approaches in Korean traditional space interpretation. Secondly, As typological structure of traditional space, spacial and visual expressive characteristics in traditional residential space based on traditional thoughts of Koreans formed with inherent consciousness are considered with Hjelmslev's Structuralism and Wonhyo's Whajaeng theory. Finally, This study tries conceptual analysis based on Lacan's Metaphor and Metonymy emerged from unconscious mechanisms about interpretation and induction of the traditional spacial structure for contemporary Application. Structure is a group of elements forming a covariant ensemble. From this point of view, this study validates that texts are understood when methods that bring back to the creative processes and intentions are found by Text Hermeneutics.

Automatic Video Genre Identification Method in MPEG compressed domain

  • Kim, Tae-Hee;Lee, Woong-Hee;Jeong, Dong-Seok
    • Proceedings of the IEEK Conference
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    • 2002.07c
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    • pp.1527-1530
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    • 2002
  • Video summary is one of the tools which can provide the fast and effective browsing fur a lengthy video. Video summary consists of many key-frames that could be defined differently depending on the video genre it belongs to. Consequently, the video summary constructed by the uniform manner might lead into inadequate result. Therefore, identifying the video genre is the important first step in generating the meaningful video summary. We propose a new method that can classify the genre of the video data in MPEG compressed bit-stream domain. Since the proposed method operates directly on the com- pressed bit-stream without decoding the frame, it has merits such as simple calculation and short processing time. In the proposed method, only the visual information is utilized through the spatial-temporal analysis to classify the video genre. Experiments are done for 6 genres of video: Cartoon, Commercial, Music Video, News, Sports, and Talk Show. Experimental result shows more than 90% of accuracy in genre classification for the well-structured video data such as Talk Show and Sports.

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A study of the relationship between the subjective symptoms of VDT syndrome and occupational factors in VDT operators (VDT작업자의 작업조건과 다발하는 자각증상과의 관련성에 관한 연구)

  • Kim Kap-Sung;Lee Seung-Deok
    • Journal of Acupuncture Research
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    • v.18 no.6
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    • pp.70-83
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    • 2001
  • Objective : In order to investigate symptoms prevalence related to visual display terminal(VDT) syndrome, and to evaluate the variables affecting the development of the VDT syndrome. Methods : a questionnaire survey was conducted on 127(81 men and 46 women) VDT operators who had been studied in Soongsil University graduated school in Seoul. Result : As a result of analysis with data collected by questionnaire, l. Variables affecting the level of general symptoms were sex, the total time of VDT operation per day, type of typewriting, location of keyboard, illumination, VDT working duration, the time of VDT operation without rest. 2. Variables affecting the level of eye symptoms were sex, the total time of VDT operation per day, type of typewriting, VDT working duration, illumination, method of eye-resting. 3. Variables affecting the level of musculoskeletal symptoms were sex, the total time of VDT operation per day, the time of VDT operation without rest, illumination. Conculsions : In order to protect workers from VDT syndrome, it is urgently required to implement standard management recommendations including restriction of VDT working hours and allowance of more sufficient resting time for VDT workers.

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