• Title/Summary/Keyword: Motion Study

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A Study of Motion Graphics Effects in Moving for Video Game Contents Projection (비디오 게임 콘텐츠 제작을 위한 모션그래픽 움직임 효과에 관한 연구)

  • Ju, Heon-Sik
    • 한국게임학회지
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    • v.9 no.1
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    • pp.15-23
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    • 2012
  • In this paper, studied about an effect in motion graphics to make video game contents projects. Using the motion graphics to make video game contents projects was applied with various effects. The effects in motion graphics is divided in two ways that moving effects and a motion image effects. The various effects of motion graphics extremely increases the effects of the video game contents projects. The various effects in the motion graphics, expects to be applied in the video game that can be more developed creative in video arts.

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Motion Artifact Reduction Algorithm for Interleaved MRI using Fully Data Adaptive Moving Least Squares Approximation Algorithm (완전 데이터 적응형 MLS 근사 알고리즘을 이용한 Interleaved MRI의 움직임 보정 알고리즘)

  • Nam, Haewon
    • Journal of Biomedical Engineering Research
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    • v.41 no.1
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    • pp.28-34
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    • 2020
  • In this paper, we introduce motion artifact reduction algorithm for interleaved MRI using an advanced 3D approximation algorithm. The motion artifact framework of this paper is data corrected by post-processing with a new 3-D approximation algorithm which uses data structure for each voxel. In this study, we simulate and evaluate our algorithm using Shepp-Logan phantom and T1-MRI template for both scattered dataset and uniform dataset. We generated motion artifact using random generated motion parameters for the interleaved MRI. In simulation, we use image coregistration by SPM12 (https://www.fil.ion.ucl.ac.uk/spm/) to estimate the motion parameters. The motion artifact correction is done with using full dataset with estimated motion parameters, as well as use only one half of the full data which is the case when the half volume is corrupted by severe movement. We evaluate using numerical metrics and visualize error images.

Scaled and unscaled ground motion sets for uni-directional and bi-directional dynamic analysis

  • Kayhan, Ali Haydar
    • Earthquakes and Structures
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    • v.10 no.3
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    • pp.563-588
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    • 2016
  • In this study, solution models are proposed to obtain code-compatible ground motion record sets which can be used for both uni-directional and bi-directional dynamic analyses. Besides scaled, unscaled ground motion record sets are obtained to show the utility and efficiency of the solution models. For scaled ground motion sets the proposed model is based on hybrid HS-Solver which integrates heuristic harmony search (HS) algorithm with the spreadsheet Solver add-in. For unscaled ground motion sets HS based solution model is proposed. Design spectra defined in Eurocode-8 for different soil types are selected as target spectra. The European Strong Motion Database is used to get ground motion record sets. Also, a sensitivity analysis is conducted to evaluate the effect of different HS solution parameters on the solution accuracy. Results show that the proposed solution models can be regarded as efficient ways to develop scaled and unscaled ground motion sets compatible with code-based design spectra.

A study on motion errors due to acceleration and deceleration types of servo motors (서보모터의 가감속형태에 따른 운도오차에 관한 연구)

  • Shin, Dong-Soo;Chung, Sung-Chong
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.21 no.10
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    • pp.1718-1729
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    • 1997
  • This paper describes motion errors due to acceleration and deceleration types of servo motors in NC machine tools. Motion errors are composed of two components : one is due to transient response of a servomechanism and the other comes from gain mismatching of positioning servo motors. It deals with circular interpolation to identify motion errors by using Interface card. Also in order to minimize motion errors, this study presents an effective method to optimize parameters which are connected with motion errors. The proposed method is based upon a second order polynomial regression model and it includes an orthogonal array method to make the effective results of experiments. The validity and reliability of the study were verified on a vertical machining center equipped with FANUC 0MC through a series of experiments and analysis.

The Clinical Report on 2 cases of Meniscal Injury patients with Knee Pain improved by Motion Style Treatment (슬관절 M.S.T.(Motion Style Treatment)를 이용한 반월상 연골판 손상으로 진단받은 슬통 환자 치험 2례)

  • Choi, Young-Il;Kim, Min-Yeong;Choi, Hee-Seung;Shin, Dong-Jae;Choo, Won-Jung
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.6 no.2
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    • pp.97-107
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    • 2011
  • Objectives : The purpose of this study is to report two cases of improvement in meniscal injury induced knee pain after M.S.T(Motion Style Treatment). Methods : Two patients diagnosed as meniscal injury were improved by M.S.T(Motion Style Treatment). This study was measured by Numerical Rating Scale(NRS) score and physical examination. Results : In this study, in the end of continuous M.S.T(Motion Style Treatment), patient's knee pain had improved. Numerical Rating Scale(NRS) were also decreased. Conclusions : As seen in this two cases of patients of knee pain who were diagnosed as meniscal injury, M.S.T(Motion Style Treatment) has a positive effect to control pain with knee pain who are diagnosed as meniscal injury.

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Effect of adaptive motion on cyclic fatigue resistance of a nickel titanium instrument designed for retreatment

  • Ozyurek, Taha;Yilmaz, Koray;Uslu, Gulsah
    • Restorative Dentistry and Endodontics
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    • v.42 no.1
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    • pp.34-38
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    • 2017
  • Objectives: The aim of this study was to evaluate the cyclic fatigue resistance of the ProTaper Universal D1 file (Dentsply Maillefer) under continuous and adaptive motion. Materials and Methods: Forty ProTaper Universal D1 files were included in this study. The cyclic fatigue tests were performed using a dynamic cyclic fatigue testing device, which had an artificial stainless steel canal with a $60^{\circ}$ angle of curvature and a 5 mm radius of curvature. The files were randomly divided into two groups (Group 1, Rotary motion; Group 2, Adaptive motion). The time to failure of the files were recorded in seconds. The number of cycles to failure (NCF) was calculated for each group. The data were statistically analyzed using Student's t-test. The statistical significant level was set at p < 0.05. Results: The cyclic fatigue resistance of the adaptive motion group was significantly higher than the rotary motion group (p < 0.05). Conclusion: Within the limitations of the present study, the 'Adaptive motion' significantly increased the resistance of the ProTaper Universal D1 file to cyclic facture.

Effect of Early Ankle Exercise with Functional Electrical Stimulation on Strength and Range of Motion of Ankle in Patients with Stroke (기능적 전기자극을 이용한 조기 발목재활운동이 급성기 뇌졸중 환자의 발목 근력과 가동범위에 미치는 영향)

  • Kim, Chang-Heon;Kang, Tae-Woo
    • PNF and Movement
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    • v.12 no.3
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    • pp.159-165
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    • 2014
  • Purpose: The purpose of this study was to investigate the effect of early ankle exercise with functional electrical stimulation(FES) on spasticity, strength and active range of motion of ankle in patients with stroke. Methods: This study included 21 patients with stroke, who were performed early ankle exercise combined FES. The exercise program comprised 5 sessions of 30 minutes per week for 4 weeks. The spasticity, strength and active range of motion of ankle were evaluated before and after training. The spasticity was measured by modified ashworth scale(MAS), strength of ankle was measured by hand-held dynamometer and active range of motion of ankle dorsi-flexion was measured by goniometer. All data were analyzed using SPSS 18.0. Results: Significant differences were observed the subjects for strength of ankle and active range of motion. The results of the study were as follow: strength of ankle was significantly increased subjects(p<.001) and active range of motion was significantly increased subjects(p<.001). Conclusion: Ankle is very important part of body in stroke patients. early ankle exercise with FES is effective for improvement of strength of ankle and active range of motion in patients with stroke. ealry ankle exercise with FES about stroke patient is very useful and effective. It is effective in clinical practice.

Effect of 1Hz Motor Nerve Electrical Stimulation on Joint Range of Motion

  • Jong Ho Kang
    • Physical Therapy Rehabilitation Science
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    • v.11 no.4
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    • pp.409-413
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    • 2022
  • Objective: This study aims to compare the range of motion of the joints by applying the contraction and relaxation techniques used in manual therapy as electrical stimulation treatment. Based on this, we would like to propose the possibility of using motor nerve electrical stimulation therapy for musculoskeletal physical therapy. Design: Single-arm interventional study Methods: Active and passive straight leg raising tests were performed on 20 healthy men and women in their 20s to measure the angle of hip joint flexion. Then, the electrical stimulation time was set to 10 seconds and 5 seconds of rest, and motor nerve electrical stimulation of 1 Hz was applied with the maximum strength that could withstand the hamstring muscles for 10 minutes. After electrical stimulation, straight leg raising tests again to confirm the range of motion of the hip joint flexion. Results: As a result of this study, it was confirmed that the joint range of motion was significantly improved for both active and passive straight leg raising tests after application of motor nerve electrical stimulation(p<.05). Conclusions: With a strong electrical stimulation treatment of 1 Hz, the effect similar to the contraction and relaxation technique used in manual therapy was confirmed through the joint range of motion. In the future, motor nerve electrical stimulation therapy can be used for musculoskeletal physical therapy to provide a new approach for patients with reduced pain and joint range of motion due to muscle tension.

A Study on the Trend Analysis St Environment of Motion Graphic. -Focused on Historical Backgrounds of Motion Graphic Appearance- (모션그래픽의 환경과 경향분석에 관한 연구 -모션그래픽 출현의 역사적 배경을 중심으로 -)

  • Kim, Jae-Myoung
    • Archives of design research
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    • v.18 no.2 s.60
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    • pp.5-14
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    • 2005
  • Graphic Design is being developed as a unique genre and widely applied to movie, TV broadcasting, music video, computer an, web design, animation, and game. Some university added motion graphics in their curriculum recently. However Motion Graphic has not been defined clearly and pedagogy of motion graphics was not studied enough. Motion Graphic is not merely moving picture. Its typical purpose and concept are evolving because of the diversified application. Meta-synthesis between media and hybrid development based on diverse approach and composite presentational methods are also changing Motion Graphic. Various technology such as photograph, analytical engine, hypermedia, multimedia, digital composite picture, network and interface should be studied to understand Motion Graphic. This study reviews the historic background of Motion Graphic mainly related to its advent. A fundamental definition of Motion Graphic including the space and time is suggested and the international trend is introduced. Future Motion Graphic and possible development was also predicted.

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The Effect Analysis of Postural Stability on the Inter-Segmental Spine Motion according to Types of Trunk Models in Drop Landing (드롭착지 동작 시 체간모델에 따른 척추분절운동이 자세안정성 해석에 미치는 영향)

  • Yoo, Kyoung-Seok
    • Korean Journal of Applied Biomechanics
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    • v.24 no.4
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    • pp.375-383
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    • 2014
  • The purpose of this study was to assess the inter-segmental trunk motion during which multi-segmental movements of the spinal column was designed to interpret the effect of segmentation on the total measured spine motion. Also it analyzed the relative motion at three types of the spine models in drop landing. A secondary goal was to determine the intrinsic algorithmic errors of spine motion and the usefulness of such an approach as a tool to assess spinal motions. College students in the soccer team were selected the ten males with no history of spine symptoms or injuries. Each subject was given a fifteen minute adaptation period of drop landing on the 30cm height box. Inter-segmental spine motion were collected Vicon Motion Capture System (250 Hz) and synchronized with GRF data (1000 Hz). The result shows that Model III has a more increased range of motion (ROM) than Model I and Model II. And the Lagrange energy has significant difference of at E3 and E4 (p<.05). This study can be concluded that there are differences in the three models of algorithm during the phase of load absorption. Especially, Model III shows proper spine motion for the inter-segmental joint motion with the interaction effects using the seven segments. Model III shows more proper observed values about dynamic equilibrium than Model I & Model II. The findings have shown that the dynamic stability strategy of Model III toward multi-directional spinal motion supports for better function of the inter-segmental motor-control than the Model I and Model II.