• 제목/요약/키워드: Research movement

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자기공명 영상을 이용한 피부 움직임 에러 분석에 관한 연구 (Analysis of Skin Movement Artifacts Using MR Images)

  • 류재헌;;;;이관행
    • 한국정밀공학회지
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    • 제21권8호
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    • pp.164-170
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    • 2004
  • The skin movement artifacts are referred to as the relative motion of skin with respect to the motion of underlying bones. This is of great importance in joint biomechanics or internal kinematics of human body. This paper describes a novel experiment that measures the skin movement of a hand based on MR(magnetic resonance) images in conjunction with surface modeling techniques. The proposed approach consists of 3 phases: (1) MR scanning of a hand with surface makers, (2) 3D reconstruction from the MR images, and (3) registration of the 3D models. The MR images of the hand are captured by 3 different postures. And the surface makers which are attached to the skin are employed to trace the skin motion. After reconstruction of 3D models from the scanned MR images, the global registration is applied to the 3D models based on the particular bone shape of different postures. The results of registration are then used to trace the skin movement by measuring the positions of the surface markers.

독서 대중화 운동 연구 - 1960년대를 중심으로 - (A Study on Reading Popularization Movement : Focus in 1960's)

  • 윤금선
    • 한국도서관정보학회지
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    • 제38권2호
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    • pp.271-294
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    • 2007
  • 이 연구는 1960년대 독서 대중화 운동과 독서 경향을 조명하려는 데 목적을 두고 있다. 이 시기는 공교육 차원에서뿐만 아니라 사회 전반에서 교양으로서의 '독서'에 대한 학문적이며 정책적인 관심이 고조되었던 시기이다. 본고에서는 이러한 1960년대 독서 및 독서 교육의 제반 현상들을 주로 신문 자료를 토대로 기술함으로, 일종의 '독서 사회'의 형성 과정을 사회학적인 측면에서 살폈다. 구체적인 연구 내용을 제시하면 첫째, 1960년대의 독서 경향으로써 1) 일반 독서 경향 2) 학생 독서 실태를 둘째, 독서 대중화 운동으로서 1) 도서관의 독서 운동 2) 마을문고와 독서 운동을 등으로 대별하여 그 양상을 고찰했다.

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A Prediction of Stock Price Movements Using Support Vector Machines in Indonesia

  • ARDYANTA, Ervandio Irzky;SARI, Hasrini
    • The Journal of Asian Finance, Economics and Business
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    • 제8권8호
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    • pp.399-407
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    • 2021
  • Stock movement is difficult to predict because it has dynamic characteristics and is influenced by many factors. Even so, there are some approaches to predict stock price movements, namely technical analysis, fundamental analysis, and sentiment analysis. Many researches have tried to predict stock price movement by utilizing these analysis techniques. However, the results obtained are varied and inconsistent depending on the variables and object used. This is because stock price movement is influenced by a variety of factors, and it is likely that those studies did not cover all of them. One of which is that no research considers the use of fundamental analysis in terms of currency exchange rates and the use of foreign stock price index movement related to the technical analysis. This research aims to predict stock price movements in Indonesia based on sentiment analysis, technical analysis, and fundamental analysis using Support Vector Machine. The result obtained has a prediction accuracy rate of 65,33% on an average. The inclusion of currency exchange rate and foreign stock price index movement as a predictor in this research which can increase average prediction accuracy rate by 11.78% compared to the prediction without using these two variables which only results in average prediction accuracy rate of 53.55%.

한국 커뮤니티 시네마 특성 연구:한국 대안상영 운동의 역사를 중심으로 (A Study on Characteristics of Korean Community Cinema : Focusing on the history of the Korean alternative screening movement)

  • 전병원
    • 문화기술의 융합
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    • 제8권4호
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    • pp.227-238
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    • 2022
  • 본 논문은 한국 커뮤니티 시네마 운동의 변화 과정과 특징에 관한 연구이다. 2010년대 이후 활발해지는 커뮤니티 시네마 운동은 한국 영화문화 운동의 전환점이라 할 수 있다. 하지만 커뮤니티 시네마 운동에 대한 학술적·정책적 정의와 연구는 극히 미흡하고, 몇몇 세미나나 정책 연구보고서에 등장할 뿐이다. 본 연구는 한국 커뮤니티 시네마 운동 특징들을 한국 대안상영 운동의 흐름 속에서 발견하고자 한다. 한국 대안상영 운동에 대한 통시적 접근과 커뮤니티 시네마 사례에 관한 비교분석 연구를 진행하여 한국 커뮤니티 시네마의 특징을 파악하고, 아직 지원 체계가 준비되지 못한 커뮤니티시네마 정책 방향성을 제시하고자 한다.

무용예술에서의 라반동작분석법의 총체적 의의 (The Meaning of Analysis and Record in Dance Art - Laban Movement Analysis -)

  • 이경희
    • 트랜스-
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    • 제6권
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    • pp.17-33
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    • 2019
  • 학문적인 연구를 위한 목적으로 사용되는 라반 동작분석법(Laban Movement Analysis)의 핵심은 움직임을 통한 개인의 심리 또는 정서 상태는 내적의도에 의해 외적인 움직임으로 표현되며, 그것은 내면 정서의 상징성을 띠고 있다는 것으로부터 출발한다. 또한 라반동작분석법은 움직임의 대상의 구조가 어떠했는지, 그 구조를 과거 또는 다른 구조와 비교 분석적으로 해석하는데 중점을 두며, 분석된 춤의 문법들은 궁극적으로 심리적·사회적·문화적인 다양한 측면에서 서로의 '관계성' 찾을 수 있는 단서를 제공한다. 또한 춤의 '순간성'으로부터 함의된 시스템용어로 기록의 자원을 제공하고, 그것은 다학적인 연구자료로서 교육적 가치를 지닌다.

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Prediction of Time-dependent Lateral Movement Induced by Differential Shortening in Tall Buildings Using Construction Stage Analysis

  • Ha, Taehun;Kim, Sangdae;Lee, Sungho
    • 국제초고층학회논문집
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    • 제6권1호
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    • pp.11-19
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    • 2017
  • High-rise buildings move during construction due to time-dependent material properties of concrete (creep and shrinkage), construction sequences, and structural shapes. The building movements, including vertical and horizontal displacements, result from the sum of axial and lateral deformation of vertical members at each level. In addition to the vertical shortenings, the lateral movement induced by differential shortening can have adverse effects on the construction tolerance and serviceability of non-structural elements such as elevators and curtain walls. In this study a construction stage analysis method is developed to predict lateral movement induced by shortening, including the effect of creep and shrinkage. The algorithm of construction stage analysis is combined with the FE analysis program. It is then applied to predict lateral movement of a 58-story reinforced concrete building that was constructed in Kuala Lumpur, Malaysia. Gravity induced lateral movement of this building is predicted by the construction stage analysis. A field three-dimensional laser scanning survey is carried out to verify the prediction results, and satisfactory agreement is obtained.

카메라 간 정보 공유를 통한 실시간 차량 추적 시스템 개발 (Development of Real-Time Tracking System Through Information Sharing Between Cameras)

  • 김선형;김상욱
    • 정보처리학회논문지:컴퓨터 및 통신 시스템
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    • 제9권6호
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    • pp.137-142
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    • 2020
  • 사물인터넷 기기를 이용한 감시 시스템에 대한 연구가 증가함에 따라 특정 객체의 위치를 추적하는 연구의 필요성이 높아지고 있다. 빠른시간 안에 실시간으로 객체의 이동을 감지하고 이동 경로를 예측하는 것을 목표로 한다. 움직이는 객체를 명확하게 인식하고 검출하는 연구는 많이 이루어졌지만 객체를 인식하는 카메라 간의 정보의 공유를 필요로 하지 않는다. 본 논문에서는 카메라의 기기정보와 카메라에서 촬영하는 영상정보를 이용하여 객체의 이동반경을 예측하고 반경 내의 카메라에 대해 정보를 공유하여 객체의 이동 경로를 제공한다.

경추 부위 동태손상증후군의 진단·평가를 위한 설문 문항 개발 (Development of Diagnostic and Assessable Questionnaires for Cervical Movement System Impairment Syndromes)

  • 박문석;김현호;박영배;박영재
    • 대한한의진단학회지
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    • 제20권1호
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    • pp.1-13
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    • 2016
  • Objectives The aim of this study is to develop diagnostic and assessable questionnaires for cervical movement system impairment syndromes. Methods We reviewed the previous study and literature, and organized various checkable items for differential diagnosis of four different cervical movement system impairment syndromes. Next, we selected items which can be developed as questionnaire items. Finally, we conducted a face validity study with twelve Korean medical doctors and carried out survey research to evaluate the importance score of the items with three experts. Results We developed a diagnostic and assessable questionnaire as follows: 9 items for cervical extension syndrome; 5 items for cervical flexion syndrome; 9 items for cervical rotation syndrome. By conducting 2 rounds of survey research, we were able to bridge the differences in the importance score of each item. Conclusions A questionnaire for the diagnosis and assessment of movement system impairment syndromes was developed. This questionnaire holds promising applications for objective diagnosis and assessment of cervical movement system impairment syndromes. This tool may also be used for detecting the sub-health status of musculoskeletal systems.

각성 중 주기성사지운동 여부에 따른 하지불안증후군 환자의 수면 특성 차이에 대한 비교연구 (Difference in Sleep Characteristics between Restless Leg Syndrome With and Without Periodic Limb Movement during Wakefulness)

  • 신유용;변정익;신원철
    • Journal of Sleep Medicine
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    • 제15권2호
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    • pp.62-67
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    • 2018
  • Objectives: Restless leg syndrome (RLS) is a common sensorimotor disorder and is frequently associated with periodic limb movement in sleep (PLMS). Also about one third of patient with RLS have periodic limb movement during wakefulness (PLMW). However there is little research on the correlation between PLMW and RLS. We aimed to evaluate difference in sleep characteristics between patients with RLS with PLMW and those without PLMW. Methods: Our study included twenty eight RLS patients. Subjects underwent suggested immobilization test (SIT) prior to one full-night polysomnography study. Patients were classified into two groups according to the presence of PLMW based on SIT-PLMW index. Polysomnographic findings, subjective sleep quality, and hematologic results were analyzed and compared between the two groups. Results: Mean age of patient with frequent PLMW (SIT-PLMW ${\geq}40/hr$) was significantly higher. RLS patients with frequent PLMW were also significantly related to insomnia severity. The PLMS index was higher in patients with PLMW and showed a significant correlation with the PLMW index. Conclusions: PLMW influence sleep quality such as insomnia and is correlated with movement during sleep.

Effects of the Additional Scapular Posterior Tilt Movement on Selective Muscle Activation of the Lower Trapezius during Prone Shoulder Extension

  • Kim, Sooyong;Kang, Minhyeok
    • 국제물리치료학회지
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    • 제12권2호
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    • pp.2308-2313
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    • 2021
  • Background: Although the scapular posterior tilt movement could facilitate the lower trapezius (LT) muscle activity, no study identified the effects of the scapular posterior tilt movement on the selective activation of the LT muscle during prone shoulder extension. Objectives: To examine the influences of additional scapular posterior tilt on electromyography (EMG) of the upper trapezius (UT) and the LT muscles during prone shoulder extension. Design: Cross-sectional study. Methods: There were 15 asymptomatic male participants in this study who performed prone shoulder extension with and without scapular posterior tilt movements. For the scapular posterior tilt movements, participants performed visual biofeedback training for scapular movement using motion sensor. During the exercises, the EMG activity of the UT and LT was recorded using surface EMG system. Results: The EMG activity of the LT significantly increased during prone shoulder extension with scapular posterior tilt compared to that of general prone shoulder extension, whereas that of the UT was not significantly different between the two exercises. Moreover, scapular posterior tilt application significantly decreased UT/LT muscle activity ratio. Conclusion: Scapular posterior tilt movement may be emphasized during exercise when facilitating LT muscle activation.