• Proceedings of the KSR Conference
• /
• 2010.06a
• /
• pp.979-983
• /
• 2010

In case a set of railway vehicles moves on a rail track, the end of each car in which a coupler is installed produces a complex movement depending on the displacement of a rail track, bogie and a coupler. Especially, the movement of an end of cars is hugely affected by a radius of gyration and gradient of a rail track, vertical and lateral movement of bogie, and compression of coupler. In this thesis, I present a simulation technic for easy input and change of displacement of a rail track, bogie and a coupler as well as visualization of movement of the end of cars on a rail track using CATIA V5, CAD software.

• Convergence Security Journal
• /
• v.15 no.4
• /
• pp.149-154
• /
• 2015

The aim of this study is to suggest the change of behavior and motor skill of children with intellectual disabilities participating functional games using virtual reality. For this purpose, 5 children with intellectual disabilities completed a 16-week functional game program twice a week. The result was as following; the application of functional games using virtual reality has positive effect on behavior and motor skill -static coordination, hand motion coordination, normal motion coordination, motor speed, simultaneous spontaneous motion, single motion competency. The application and utilization of functional games using virtual reality systematically of children with intellectual disabilities can bring an improvement on their overall development.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2013.11a
• /
• pp.161-164
• /
• 2013

본 논문에서는 다양한 멀티미디어 코덱을 고속으로 처리하기 위하여 전용하드웨어가 아닌 병렬 어레이 프로세서 기반의 U-Chip(Universal-Chip) 구조를 제안하고 TSMC 80nm 공정을 사용하여 11,865,090개의 게이트 수를 가지는 칩으로 개발하였다. U-Chip은 역양자화(IQ), 역변환(IT), 움직임 보상(MC) 연산을 위한 $4{\times}16$ 개의 프로세싱 유닛으로 구성된 병렬 어레이 프로세서와 문맥적응적 가변길이디코딩(CAVLC)을 위한 비트스트림 프로세서와 인트라 예측(IP), 디블록킹필터(DF) 연산을 위한 순차 프로세서와 DMAC의 데이터 전송 및 각 프로세서를 제어하여 병렬 파이프라인 스케쥴링을 처리하는 시퀀서 프로세서 등으로 구성된다. 1개의 프로세싱 유닛에 1개의 매크로블록 데이터를 맵핑하여 총 64개의 매크로블록을 병렬처리 하였다. 64개 매크로블록의 대용량 데이터 전송 시간과 각 프로세서들의 연산을 동시에 병렬 파이프라인 함으로서 전체 연산 성능을 높일 수 있는 이점이 있다. 병렬 파이프라인 구조의 H.264 디코더 프로그램을 개발하였고 제작된 U-Chip을 통해 $720{\times}480$ 크기의 베이스라인 프로파일 영상에 대하여 코어 192MHz 동작, DDR 메모리 96MHz 동작에서 30fps의 처리율을 가짐을 확인하였다.

• Korean Journal of Applied Biomechanics
• /
• v.20 no.2
• /
• pp.231-237
• /
• 2010

The moving trajectory of a golf ball is mainly determined by the angles of the clubface and the trajectory of the club shaft. This paper presents a computer program for analyzing the position and angles of the club while the club moves in a circular motion. For this purpose, a mathematical algorithm was developed and implemented on the experimental data(5 m and 10 m carries) using VC++ and OpenGL. A skilled female golfer(174 cm, 65 kg, 0 handicap) was participated in data collection for the short approach shots. An iron club(Titleist 52 degree, 91.5 cm length, 450 g mass), attached with five reflective markers(12 mm), was used to collect experimental data. However, exact 3D coordinates and angles of the clubface are not directly calculated from measured data. A reverse engineering platform(Minolta Vivid910 hardware and Rapidform software) was thus employed to acquire the scanned data of the clubface. The scanned data and measured data were first aligned by applying appropriate coordinate transformations, and then exact coordinates and angles of clubface could be obtained at each position during circular motion. The program(Club Motion Analysis 1.0) exports the open, heel, loft angles of the club.

• Physical Therapy Korea
• /
• v.14 no.3
• /
• pp.32-40
• /
• 2007

Although many children with cerebral palsy have problems with their eye movements available data on its intervention is minimal. The purpose of the study was to determine the effectiveness of the postural movement normalization and eye movement program on the oculomotor ability of children with cerebral palsy. Twenty-four children with cerebral palsy (12 male and 12 female), aged between 10 and 12, were invited to partake in this study. The subjects were randomly allocated to two groups: an experimental group received the postural movement normalization and eye movement program and a control group which received conventional therapy without the eye movement program. Each subject received intervention three times a week for twelve weeks. The final measurement was the ocular motor computerized test before and after treatment sessions through an independent assessor. Differences between the experimental group and control group were determined by assessing changes in oculomotor ability using analysis of covariance (ANCOVA). The changes of visual fixation (p<.01), saccadic eye movement (p<.01) and pursuit eye movement (p<.01) were significantly higher in the experimental group than in the control group. These results show that the postural movement normalization and eye movement program may be helpful to treat children with cerebral palsy who lose normal physical and eye movement.

• Journal of Aerospace System Engineering
• /
• v.18 no.2
• /
• pp.79-86
• /
• 2024

We have developed software for the SMFD that utilizes a range of graphic design tools. These tools enable us to effortlessly create graphic elements by defining their attributes, such as position and motion. Subsequently, we can convert these designs into source code and execute the resulting software on the target system, leveraging the graphic engines provided by the tools. However, when it comes to developing the displaying software for the SMFD using multiple graphic design tools on a single system, we face various challenges. In this paper, we will delve into these challenges and propose solutions for developing the displaying software for SMFD based on heterogeneous display design tools.

• Progress in Medical Physics
• /
• v.17 no.3
• /
• pp.136-143
• /
• 2006

The respiratory gating radiation therapy which Irradiates only in the stable respiratory period with analyzing the periodic motion of a reflective marker on the patient's abdomen has been applied to the precise radiation treatment in order to minimize the effect of organ motion induced by the respiration. This respiratory gating system establishes irradiation region using the amplitude-based or phase-based method. Although phase-based method Is preferred because of the stability in the real treatment conditions, it has some limits to explain the exact correlation between the marker motion and organ motion. Even when the variation of amplitude which can introduce target motion considered as an error is produced, the phase-based method has the possibility to irradiate including the error positions. In this study, the error analysis program was developed for the verification of the tumor position's variation correlated with the variation of marker's amplitude which can be occurred during a phase-based respiratory sating treatment. The analysis program was tested with a virtual treatment record file and with a record file using moving phantom which were modified considering the irregular amplitude's variation simulating the real clinical situations. In both cases, accurate discrimination of error points and error calculation were produced. When the treatment record files of a real patient were analyzed with the program, the accurate recognition and calculation of the error points were also verified. The analysis program developed in this study will be applied as a useful tool for the analysis of errors due to the irregular variation of patients' respiration during the phase-base respiratory gating radiation treatment.

• The Journal of the Korea Contents Association
• /
• v.14 no.4
• /
• pp.277-286
• /
• 2014

The research has been carried out to examine how sensory processing ability of children of multicultural families in farming areas can affect their social maturity. Short sensory profile and social maturity scale were conducted to fifty four children of multinational parents who live in Gyeongsangbuk-do and Jeollanam-do. The data were analysed by statistics process. The result of the analysis revealed three findings. Firstly, there exieted certain delays in sensory processing ability and social maturity. Multicultural children had an average point of $154.33{\pm}21.24$ regarding sensory processing ability and with regards to social age and social quotient of social maturity of them were 1.76 year old and $91.28{\pm}18.31$ point respectively. Another interesting finding is that significant differences of the influence, in which sensory processing ability of the example group affected social maturity, were found in categories of movement sensitivity, underresponsive/seeks sensation and low energy/weak of social age part(p<0.05). There were significant differences between auditory filtering as well as movement sensitivity, underresponsive sensation and low energy/weak of social quotient area(p<0.05). Finally, variables of the impact on social maturity of the group of children were analysed to examine to what extent sensory processing ability of the children had affected and the influencing rate of social age and social quotient of social maturity, with 45.3% and 66.3% respectively.

• 한국공간정보시스템학회:학술대회논문집
• /
• 2005.05a
• /
• pp.201-205
• /
• 2005

미국과 일본 등 많은 나라들이 연안역에 대한 오염총량관리제를 실시하고 있으며 우리나라 역시 90년도 초반부터 환경부와 국립환경연구원에 의하여 4대강을 대상으로 내륙에 대한 지자체 단위의 오염총량관리제가 추진되고 있다. 연안해역에서도 최근 해양오염방지법의 개정으로 특별관리해역 지정 등 특정 연안해역에 영향을 미치는 육역을 포함하는 연안역 통합관리제가 해양수산부에 의하여 추진되고 있다 또한 외국의 사례로서 미국 체사피크만에서는 오염총량관리제를 포함하는 연안역 통합관리제 수립 및 운용을 위하여 GIS 및 모델 package로 구성된 시스템을 구축 활용하고 있으며, 이런 GIS 및 모델 package로 구성된 시스템을 바탕으로 연안역 통합관리를 위한 기본적인 자료를 수집 분석하고 정책 수립의 방향을 제시하고 있다. 하지만 우리나라에서는 아직까지 연안역 통합관리를 위한 기초 자료도 많이 부족하고 이런 기초 자료를 토대로한 분석 도구인 GIS-modeling 시스템 개발도 매우 미미한 실정이다. 따라서 본 연구에서는 GIS를 이용하여 오염원의 발생 및 배출부하 산정 과정을 공간적으로 분석하여 환경관리에 응용할 수 있는 방안을 제시하고자 한다. 또한 효율적인 연안의 오염원 관리를 위하여 기존 환경부 및 관련 기환 자료를 활용하여 잠실 수중보에서 한강 하구의 세부 오염원자료를 수집하여 GIS 기반의 오염원데이터베이스를 구축하고, 오염부하산정모델을 개발한 후, 구축된 정보의 효율적인 관리와 분석을 위한 GIS 프로그램을 개발하였다. 아울러 육역에서의 오염물질 배출에 따른 연안역 수질의 모의를 통해 육역과 연안역에 대한 효율적인 통합관리방안을 제시하고자 한다.사용될 수 있는 블루투스 서비스와 서비스 속성을 기술한 XML 문서에서 블루투스 기기에 적합한 내부 정보를 생성하는 생성기를 설계하고 구현을 하였다.보다는 현저히 낮았다. 총 휘발성 유기화합물읜 농도는 실내가 실외 보다 높았다(I/O ratio 2.5). BTEX의 상대적 함량도 실내가 실외보다 높아 실내에도 발생원이 있음을 암시하고 있다. 자료 분석결과 유치원 실내의 벤젠은 실외로부터 유입되고 있었고, 톨루엔, 에틸벤젠, 크실렌은 실외뿐 아니라 실내에서도 발생하고 있었다. 정량한 8개 화합물 각각과 총 휘발성 유기화합물의 스피어만 상관계수는 벤젠을 제외하고는 모두 유의하였다. 이중 톨루엔과 크실렌은 총 휘발성 유기화합물과 좋은 상관성 (톨루엔 0.76, 크실렌, 0.87)을 나타내었다. 이 연구는 톨루엔과 크실렌이 총 휘발성 유기화합물의 좋은 지표를 사용될 있고, 톨루엔, 에틸벤젠, 크실렌 등 많은 휘발성 유기화합물의 발생원은 실외뿐 아니라 실내에도 있음을 나타내고 있다.>10)의 $[^{18}F]F_2$를 얻었다. 결론: $^{18}O(p,n)^{18}F$ 핵반응을 이용하여 친전자성 방사성동위원소 $[^{18}F]F_2$를 생산하였다. 표적 챔버는 알루미늄으로 제작하였으며 본 연구에서 연구된 $[^{18}F]F_2$가스는 친핵성 치환반응으로 방사성동위원소를 도입하기 어려운 다양한 방사성의 약품개발에 유용하게 이용될 수 있을 것이다.었으나 움직임 보정 후 영상을 이용하여 비교한 경우, 결합능 변화가 선조체 영역에서 국한되어 나타나며 그 유의성이 움직임 보정 전에 비하여 낮음을

• Journal of Music and Human Behavior
• /
• v.17 no.1
• /
• pp.97-125
• /
• 2020

This case study examined the effects of synchronization-based group music therapy for improving peer interaction of children with autism spectrum disorder (ASD). The participants were five children between the ages of 6 and 10 with ASD. A total of eight 30-minute music therapy sessions were conducted two times a week. During sessions, target behaviors (i.e., engagement in joint action, synchronized movements, eye contact, and initiation of social interaction) were observed and analyzed. Also, the PIPPS-P was completed by parents to identify behavioral changes in real-life environments from pretest to posttest. Following the intervention, all of the participants showed increases in synchronized movements with peers and attempts to initiate social interaction. In addition, parents rated their children's play behavior as being improved in their everyday living environment. These results support that synchronous movements between children with ASD, which were facilitated with rhythmic cueing, led to enhanced engagement in joint action. Considering that those movements are the basis for further social skills (e.g., play behavior), this study also indicates that synchronization-based group music therapy could be an effective therapeutic approach for improving the peer interaction of this population.