• 제목/요약/키워드: Observation Movement

검색결과 389건 처리시간 0.027초

웨이브릿 임계치와 자연관측필터를 이용한 파형의 변곡점 검출 (Detection of Inflection Point of Waveform Using Wavelet Thresholding and Natural Observation Filter)

  • 김태수
    • 대한전자공학회논문지SP
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    • 제42권4호
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    • pp.127-132
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    • 2005
  • 가상현실을 이용한 사람의 빠른 움직임을 추출하여 파형으로 나타내는 동작곡선이나 자연계에서 실제로 관측되는 대기 전기변동량과 같은 전자계 신호의 시간 변동량은 매우 복잡하다. 이러한 신호의 관측파형에 대하여 변곡점과 같은 신호의 특징을 정확히 결정하는 것이 중요하다. 잡음이 신호에 중첩될 때 종래의 방법으로는 변곡점의 검출이 어렵다. 본 논문에서는 신호에 잡음이 첨가될 때 웨이브릿 임계치 잡음제거와 정규형 자연관측필터를 적용하여 정확한 변곡점 추출이 가능함을 보인다.

거울신경세포시스템에 근간한 동작관찰-신체훈련이 만성 뇌졸중 환자의 상지기능과 일상생활활동에 미치는 영향 (Effects of Action Observational Physical Training Based on Mirror Neuron System on Upper Extremity function and Activities of Daily Living of Chronic Stroke Patients)

  • 고효은
    • PNF and Movement
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    • 제13권4호
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    • pp.175-180
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    • 2015
  • Purpose: This study aimed to examine the effects of mirror-neuron-system-based action observation physical training on improvements in upper extremity functions and daily living activities in chronic stroke patients. Methods: Ten chronic stroke patients were randomly selected. As a therapeutic intervention, along with conventional occupational therapy, the patients engaged in action observation physical training through repeated imitation practices after they viewed a video. The therapeutic intervention was implemented for 20 minutes, three times each week for eight weeks. A Manual Function Test (MFT) was conducted to compare upper extremity functions before and after the therapeutic intervention, and the Modified Barthel Index (MBI) was used to compare the ability to perform daily living activities. Results: Significant improvements in upper extremity motor functions and the ability to perform daily living activities were shown after the intervention. The subjects' left upper extremity motor functions and ability to perform daily living activities showed significant improvement after the intervention. Conclusion: The study's results indicate that action observation physical training based on the mirror neuron system improves chronic stroke patients' upper extremity motor functions and their ability to perform daily living activities. Therefore, action observation training has positive effects on the functional recovery of chronic stroke patients.

초등과학영재와 일반 아동의 분류 과정에서 나타나는 안구 운동 패턴의 차이 (Differences in Eye Movement Pattern during the Classification between the Gifted and General Students in Elementary Schools)

  • 최현동;신원섭;신동훈
    • 한국초등과학교육학회지:초등과학교육
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    • 제31권4호
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    • pp.501-512
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    • 2012
  • The purpose of this study was to identify the differences in eye movement pattern shown in classification activities between the gifted and regular students in elementary schools. The subjects for the research consisted of five gifted students in the special education center for the gifted at Seoul National University of Education and five students at D regular elementary schools. SMI (Senso Motoric Instruments)' iView $X^{TM}$ RED 120 Hz was used in order to collect eye movement data. Results were as follows. There were difference patterns between the gifted and the regular student in question identification, attribute observation, and criteria generation process. Gifted students minimized unnecessary cognitive overload and took advantage of cognitive economic efficiency. Regular students have a lot of cognitive burden because they did not grasp the essential information.

지역화폐운동의 소비문화적 의미 연구: "한밭레츠" 참여자의 소비행동을 중심으로 (A Study on the Meaning of Consumption Culture of Community Currency Movement: Focusing on "Hanbat-LETS" Participants' Consumer Behavior)

  • 천경희;이기춘
    • 한국생활과학회지
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    • 제14권4호
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    • pp.593-611
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    • 2005
  • The purpose of this study is to explore the consumption cultural meaning of Community Currency Movement - a substitute currency institution - through an analysis of consumption behaviors and attitudes of Hanbat-LETS participants, who are recognized as the most active among Korea Community Currency Movements. The analytical method adopted in this study is the participation and observation method, along with the Focus Group Interview. Major findings are as follows: Hanbat-LETS participants experienced the following consumption behaviors and attitudes: economical consumption behavior creating the currency value, sustainable consumption behavior, consumption behavior shared with community, consumption behavior free from the need of competition and ownership, satisfaction from offering one's property, equal status and relationship among members, merry and happy attitude toward life. Community Currency Movement implies the consumption cultural meaning as followings: emergence of alienation through the realization of community society, practice of environment-friendly value, activation of region economy, development of one's ability and means of redemption of unemployment, construction of trustworthy society via trust.

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거점공간의 물리적 여건에 따른 휴식시간 학생거동 특성 분석 - 교과교실형 중학교 교실공간을 중심으로 - (An Analysis about Characteristics of Students' Movement within a Recess by Physical Conditions of Homebase - Concentrated on the Classroom in Middle School on Variation Type -)

  • 정주성
    • 교육시설 논문지
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    • 제24권5호
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    • pp.3-10
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    • 2017
  • This study was tried to find out characteristics of students' movement in classroom and homeroom. The object was the school whose homebase management was different by grade. Observation research was tried about middle school class that is simultaneously worked with different type of homeroom and the movement of students under various situations was analyzed. As a result, students in exclusive subject classroom moved in short time within one or two minutes after class. In case of exclusive homeroom, returning frequency of students was nearly about 85 to 100 percent within ten minutes in end of end. Behavioral characteristics of students in dual purpose homeroom was similar in exclusive subject classroom. The class using dual purpose homeroom showed high ratio in use of center homebase, therefore, returning frequency at short recess time was extremely low. In case of dual purpose homeroom at lunch time, next class students moved in early time and maximized within one or two minutes in end of end. These results are thought to be useful for planning spaces of variation type.

Clinical Observation on Oculomotor Nerve Palsy Treated by Moxibustion

  • Woo, Hyun-Su;Seo, Dong-Min;Kim, Jong-Deog;Park, Sang-Min;Kim, Hyun-Dong;Byun, Im-Jeung;Kim, Chang-Hwan
    • 대한한의학회지
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    • 제24권4호
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    • pp.149-153
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    • 2003
  • Objective : Moxibustion is one of the primary remedies in traditional oriental medicine. We successfully treated a one patient who complained of oculomotor nerve palsy related to diabetes mellitus with moxibustion. Methods : We performed moxibustion treatment on the protuberances surrounding the Mok-chang acupoint and adjacent frontal scalp of the patient's head at the same time every day and observed the recovery of eye movement and changes of ptosis. Results : After about I week of moxibustion treatment, there were some changes of ptosis and eyeball movement. The patient felt better opening his eyes than before and seemed to reduce his paralytic condition. After 14 days, ptosis was remarkably improved, although slight diplopia remained, and eye movement had recovered to almost normal. Furthermore, his blood glucose was on the decrease and revealed an average 120 mg/dl. Conclusions : Moxibustion treatment performed on the Mok-chang acupoint remarkably improved ptosis and limited eye movement arising from oculomotor nerve palsy related to diabetes mellitus. We hope moxibustion is used for treating nerve palsies and similar diseases in the future.

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뇌졸중 환자 평가를 위한 Stroke Rehabilitation Assessment of Movement의 측정자간 신뢰도 (Inter-Rater Reliability of Stroke Rehabilitation Assessment of Movement for Patients With Stroke)

  • 윤성준;원종혁;이충휘
    • 한국전문물리치료학회지
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    • 제17권3호
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    • pp.48-58
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    • 2010
  • The aim of this study was performed to determine the inter-rater reliability of the Stroke Rehabilitation Assessment of Movement (STREAM) translated in Korean. This was a new clinical measurement tool for evaluating the recovery of voluntary movement and basic mobility following stroke. A direct-observation reliability study was conducted on 20 patients who had strokes and were in a rehabilitation setting. Subjects were assessed by two physical therapists. The reliability of the STREAM scores was demonstrated by weighted kappa statistics for inter-rater agreement on scores for individual items ranged from .83 to 1.0, intraclass correlation coefficients for total score was .99, and for subscale scores was ranged from .96 to .99. The internal consistency of the STREAM scores was demonstrated by Cronbach alphas of greater than .99 on the subscales and overall. These high levels of reliability support the use of the STREAM translated in Korean instrument for the measurement of motor recovery following stroke.

동작과 언어를 통합한 리듬교육활동에 대한 효과 분석 (An Analysis on the Effect of Rhythm Education Activity Through Movement and Language Integration)

  • 임은애
    • 수산해양교육연구
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    • 제19권2호
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    • pp.239-255
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    • 2007
  • This paper is to develop an integrate curriculum of rhythm education activity program and to find the possibility of applying the program into actual music education field for kindergarten children. The outlook of this study is to develope a program integrating the elements of movement, language and rhythm to apply the program to 5 year old children for 6 weeks through 12 sessions, and to observe and analyze their level of rhythm creativity and rhythm reading ability.The analysis of the field observation data and recording data showed that the children achieved natural and better understanding of rhythm. Seen from the perspective of rhythm creation activity, while the integration of the elements of movement and rhythm influenced directly to enhance the level of understanding rhythm and the integration of the elements of language, rhythm helped indirectly to have better understanding rhythm through connecting the notions of rhythm and movements. However, when only rhythm and movements were combined, children tended to misunderstand the relative durations of ♩ and ♪ just as different tempos not as 2:1 duration relativity. And ♫ was too misunderstand as ♬ due to different durations of korean words when only rhythm and language were combined. To overcome the limit of understanding, all of the three elements; rhythm and movements and language should be integrated and constant auditory experiences are recommended.

Movement Responses of Sludge Worm Tubifex tubifex (Annelida, Oligochaeta) in Three Different Copper Concentrations

  • Hyejin Kang;Mi-Jung Bae;Young-Seuk Park
    • 생태와환경
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    • 제55권3호
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    • pp.251-257
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    • 2022
  • Monitoring and assessing aquatic ecosystems using the behavior of organisms is essential for sustainable ecosystem management. Oligochaetes, which inhabit various freshwater ecosystems, are frequently used to evaluate the environmental conditions of freshwater ecosystems. Tubifex tubifex (Müller, 1774) (Oligochaeta, Tubificidae) is tolerant to organic pollution and has been used to evaluate the toxicity of toxicants, including heavy metals. We studied the behavioral responses of T. tubifex to three different copper concentrations (0.1, 0.5, and 1.0 mg L-1). The specimens were exposed to copper in an observation cage containing 150 mL of dechlorinated water. Movement behavior (diameter, speed, acceleration, meander, and turning rate) was continuously observed for two hours before and after the copper treatments. After the treatments, the diameter shrank and showed rapid twisting movement under all the copper conditions. The turning rate had a positive correlation with meander and acceleration both before and after treatment at all three concentrations, whereas speed and meander had a negative correlation. Length and turning rate also showed a negative correlation. The correlation coefficient between speed and acceleration in the highest copper concentration changed from positive before treatment (r=0.64) to negative (r= -0.52) after treatment. Our results present the possibility of using behavioral parameters to detect copper contamination in freshwater ecosystems.

동아시아지역의 GNSS CORS 지구관측 네트워크(EAREF) 구성에 관한 연구 (Configuration of GNSS CORS Network(EAREF) for Earth Observations in the East-Asia Region)

  • 이영진;정광호;이명준
    • 한국측량학회지
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    • 제30권2호
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    • pp.199-210
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    • 2012
  • 본 연구에서는 동아시아지역의 지각변동 경향을 지속적으로 모니터링하기 위하여 GNSS CORS 기반의 최적 관측네트워크 구성방안을 제시하는 것을 목적으로 한다. 이를 위해 아시아-태평양지역 IGS점을 기초로 다양한 형태의 GNSS CORS관측망을 시험적으로 구성하고 테스트한 결과를 종합적으로 분석한 바, 최소 5점 또는 10점 이상의 기지점을 사용하여 기하학적으로 균등하게 배치하고 2,500km 이내의 기선장으로 구성하는 동아시아지역 관측네트워크(EAREF)가 최적의 결과를 도출할 수 있었다. 그리고, 제시된 동아시아지역 관측네트워크를 적용하여 2011년 3월 동일본 대지진의 발생에 따른 위치변동을 해석한 결과 일본과 한국에서는 명백한 좌표이동이 발생한 것으로 나타났으나, 그 외 지역에서는 명백한 이동은 없다는 것을 보여주고 있다.