• Title/Summary/Keyword: Physical processing

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Differences of Sensory Processing Abilities of Adults by Gender (성별에 따른 성인의 감각 처리 능력 차이)

  • Nam, Taek-Gil;Lee, Ji-Hyun
    • Journal of Korean Physical Therapy Science
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    • v.17 no.1_2
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    • pp.11-21
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    • 2010
  • Background: This study was undertaken to evaluate how gender differences affect the sensory processing by the Adolescent/Adult Sensory Profile(ASP) which evaluates the behavioral responses of adults to everyday sensory experiences. Methods: The study period lasted one month which was June 2009, and the study subjects were 325(three hundred twenty five) people who were healthy and reside in Chungcheong province including Daejeon. Detailed information about the study was explained to the study group and the ASP questionnaires were drawn up by them personally. Results: On average, the study group scores similarly in low registration, sensation seeking, sensory sensitivity, and sensation avoiding. According to the sensory processing abilities by gender, the group obtained scores indicating performance similar to most people in low registration, sensation seeking, and sensory sensitivity, except for sensation avoiding. Furthermore, in the taste/smell processing of "I only eat familiar foods", sensation avoiding score was higher in females than males, and in the activity level of "I find time to get away from my busy life and spend time by myself", males' sensation avoiding scored higher than females. Conclusion: In the study of differences of sensory processing abilities of adults by gender using the ASP, gender differences were revealed in the category of sensation avoiding.

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Challenges in Carbon/Carbon Composites Technologies

  • Dhami, T.L.;Bahl, O.P.
    • Carbon letters
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    • v.6 no.3
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    • pp.148-157
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    • 2005
  • Carbon/Carbon Composites due to their far superior thermo-mechanical properties are used in a number of demanding applications. However, the material still is used only in specific high tech applications with few exceptions in general industrial applications. The material is extremely expensive and the major challenge is to reduce its cost. Various innovative processing routes are outlined to reduce the cost of processing.

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A Physical Storage Design Method for Access Structures of Image Information Systems

  • Lee, Jung-A;Lee, Jong-Hak
    • Journal of Information Processing Systems
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    • v.14 no.5
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    • pp.1150-1166
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    • 2018
  • This paper presents a physical storage design method for image access structures using transformation techniques of multidimensional file organizations in image information systems. Physical storage design is the process of determining the access structures to provide optimal query processing performance for a given set of queries. So far, there has been no such attempt in the image information system. We first show that the number of pages to be accessed decreases as the shape of the given retrieval query region and that of the data page region become similar in the transformed domain space. Using these properties, we propose a method for finding an optimal image access structure by controlling the shapes of the page regions. For the performance evaluation, we have performed many experiments with a multidimensional file organization using transformation techniques. The results indicate that our proposed method is at least one to maximum five times faster than the conventional method according to the query pattern within the scope of the experiments. The result confirms that the proposed physical storage design method is useful in a practical way.

The Physical Property of MWNT/PU Composite Films (다중벽 탄소나노튜브와 폴리우레탄 복합화 필름의 물성특성)

  • Kim, Jeong-Hyun;Park, Jun-Hyeong;Kim, Seung-Jin
    • Textile Coloration and Finishing
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    • v.22 no.3
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    • pp.246-256
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    • 2010
  • This study studies on the physical property of MWNT/PU composite film for electrostatic dissipation (ESD) function by dispersing multi-wall carbon nanotubes (MWNT) in dimethylformamide (DMF) and by combining it with polyurethane(PU). For this purpose, four kinds of MWNT were selected and the composite films were made by dispersion processing, and their physical properties were measured and investigated in terms of electrical conductivity. For dispersion parameters, four MWNT contents(0.5, 1, 2, 5wt%) and two dispersion times(30min, 120min) were selected. The dispersion property and the electrical conductivity of MWNT/PU film was measured using a UV-Vis spectrometer and conductivity measuring apparatus. Finally, their physical properties according to the dispersion conditions were analyzed and discussed with various processing conditions.

A Literature Review on Balance Control Factors (균형조절 요인에 관한 고찰)

  • Lee, Han-Suk;Choi, Houng-Sik;Kwon, Oh-Yun
    • Physical Therapy Korea
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    • v.3 no.3
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    • pp.82-91
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    • 1996
  • Normal balance is defined as state in which the body is equlilibrium. It is complex motor control task, requring integration of sensory information, neural processing, and biomechanical factors. There are major two factors contribute to balance control, the neurological and the musculoskeletal. The neurological factor provides the sensory processing and motor output mechanisms that are the neurophysiological basis for response. The musculoskeletal factor provides the mechanical structure for response. When all components of two factors are operating effectively, the postural response should be appropriate and effective for good balance control. Therfore, balance can be influenced by above all factors. In addition, balance can be also influenced by muscle tone, hearing, physiological factors, and environmental factors. Physical therapists must understand factors of balance control so that we can accurately assess balance. Therefore, physical therapists have to develop useful balance measurement tools to evaluate balance.

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Optimization Analysis between Processing Parameters and Physical Properties of Geocomposites (지오컴포지트의 공정인자와 물성의 최적화 분석)

  • Jeon, Han-Yong;Kim, Joo-Yong
    • Journal of the Korean Geosynthetics Society
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    • v.6 no.1
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    • pp.39-43
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    • 2007
  • Geocomposites of needle punched and spunbonded nonwovens having the reinforcement and drainage functions were manufactured by use of thermal bonding method. The physical properties (e.g. tensile, tear and bursting strength, permittivity) of these multi-layered nonwovens were dependent on the processing parameters of temperatures, pressures, bonding periods etc. - in manufacturing by use of thermal bonding method. Therefore, it is very meaningful to optimize the processing parameters and physical properties of the geocomposites by thermal bonding method. In this study, an algorithm has been developed to optimize the process of the geocomposites using an artificial neural network (ANN). Geocomposites were employed to examine the effects of manufacturing methods on the analysis results and the neural network simulations have been applied to predict the changes of the nonwovens performances by varying the processing parameters.

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A U-shape Mixed Model Assembly Line Balancing Problem for Processing Time and Physical Workload Using the Genetic Algorithm (유전 알고리듬을 이용한 U형태 혼합모델에서의 작업시간과 육체적 작업부하를 고려한 최적 라인밸런싱)

  • Choi, Gyung-Hyun;Kim, Chan-Woo
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.28 no.3
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    • pp.98-108
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    • 2005
  • The assembly line balancing problem has been focused by many research works because the efficient management of the assembly line might influence not only the quality of the products but also the working conditions for the workers. This paper deals with U-shape mixed-model assembly line balancing and considers both the processing time and the physical workloads. We suggest the goal programming approach for this situation and to overcome some difficulties of finding optimal solution, we adopt the genetic algorithm that is one of the most promising solution techniques. We tested several test problems and present the results that indicate some improvement for the line balancing as well as the stable performance of the algorithm.

Feasibility of RF Sensor Application for On-line Monitoring of Tomato Paste Processing (토마토 패이스트 가공공정의 온라인 모니터링용 RF 센서의 활용 가능성)

  • Kim, Seong-Min;Garvey, Casey;Leary, Thomas;McCarthy, Michael
    • Journal of Biosystems Engineering
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    • v.33 no.6
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    • pp.410-415
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    • 2008
  • On-line monitoring of fresh tomato paste processing was done using two radio frequency (RF) sensors resonant at 85 and 110 MHz. Fresh tomato juice with soluble solid content of about $5^{\circ}Brix$ was evaporated up to $23^{\circ}Brix$ and diluted down to about $5^{\circ}Brix$ again with a pilot scale evaporator. The RF sensors were installed in a processing pipe and monitored. The pastes at a specific $^{\circ}Brix$ level were sampled and analyzed for physical properties such as soluble solid content and viscosity. The relationships between sensor outputs and measured physical properties were analyzed. Analysis results showed RF sensor is feasible to apply on-line monitoring of tomato paste processing.

Vehicle Plate Extraction Using Wavelet Transform and Polarized Light Filter (웨이브렛 변환과 편광 필터를 이용한 차량번호판 축출)

  • 김옥규;이창윤;황형덕;강혜진;박영식
    • Proceedings of the Korea Institute of Convergence Signal Processing
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    • 2003.06a
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    • pp.102-105
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    • 2003
  • Up to the present studies of the car number recognition system, it is generally known to have serious problems such as relatively long processing time due to the excessive length of data extracted from the number plate based on the current image characteristics, and the image blurring with the physical damage of the brightness and darkness signals of the number plate caused by external impulses with many difficulties in the extraction of the highlighted numbers. In this Paper we used the characteristics firstly having a constant brightness of number plate, and a high density to the horizontal axis, and the influences of highlighted signal could be reduced by making reflections less through the polarized filter on the camera for any highlighted signal. For the more, the data processing time and the noise reduction are effectively implemented by using the wavelet transform of time-space scale with the considerations on the physical loss and processing time.

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Acceleration of the Iterative Physical Optics Using Graphic Processing Unit (GPU를 이용한 반복적 물리 광학법의 가속화에 대한 연구)

  • Lee, Yong-Hee;Chin, Huicheol;Kim, Kyung-Tae
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.26 no.11
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    • pp.1012-1019
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    • 2015
  • This paper shows the acceleration of iterative physical optics(IPO) for radar cross section(RCS) by using two techniques effectively. For the analysis of the multiple reflection in the cavity, IPO uses the near field method, unlike shooting and bouncing rays method which uses the geometric optics(GO). However, it is still far slower than physical optics(PO) and it is needed to accelerate the speed of IPO for practical purpose. In order to address this problem, graphic processing unit(GPU) can be applied to reduce calculation time and adaptive iterative physical optics-change rate(AIPO-CR) method is also applicable effectively to optimize iteration for acceleration of calculation.