• 제목/요약/키워드: Active compliance

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Multi-material topology optimization of Reissner-Mindlin plates using MITC4

  • Banh, Thien Thanh;Lee, Dongkyu
    • Steel and Composite Structures
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    • 제27권1호
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    • pp.27-33
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    • 2018
  • In this study, a mixed-interpolated tensorial component 4 nodes method (MITC4) is treated as a numerical analysis model for topology optimization using multiple materials assigned within Reissner-Mindlin plates. Multi-material optimal topology and shape are produced as alternative plate retrofit designs to provide reasonable material assignments based on stress distributions. Element density distribution contours of mixing multiple material densities are linked to Solid Isotropic Material with Penalization (SIMP) as a design model. Mathematical formulation of multi-material topology optimization problem solving minimum compliance is an alternating active-phase algorithm with the Gauss-Seidel version as an optimization model of optimality criteria. Numerical examples illustrate the reliability and accuracy of the present design method for multi-material topology optimization with Reissner-Mindlin plates using MITC4 elements and steel materials.

Selection of Environmentally Conscious Manufacturing's Program Using Multi-Criteria Decision Making: A Case Study in Electronic Company

  • Sutapa, I. Nyoman;Panjaitan, Togar W.S.
    • Industrial Engineering and Management Systems
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    • 제10권2호
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    • pp.123-127
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    • 2011
  • Nowadays, green purchasing, stop global warming, love the mother earth, and others that related to environment become hot issues. Manufactures industries tend to more active and responsive to those issues by adopting green strategies or program like Environmentally Conscious Manufacturing (ECM). In this article, an electronic company had applied 12 ECM Program and tries to choose one of those programs using 6 criteria, such as total cost involved, quality, recyclable material, process waste reduction, packaging waste reduction, and regulation compliance. By using multi-criteria decision making model, i.e. Analytical Hierarchy Process (AHP), Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), and Modified TOPSIS methods, the ECM Program 9 (Open pit) is the best option.

A multiscale creep model as basis for simulation of early-age concrete behavior

  • Pichler, Ch.;Lackner, R.
    • Computers and Concrete
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    • 제5권4호
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    • pp.295-328
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    • 2008
  • A previously published multiscale model for early-age cement-based materials [Pichler, et al.2007. "A multiscale micromechanics model for the autogenous-shrinkage deformation of early-age cement-based materials." Engineering Fracture Mechanics, 74, 34-58] is extended towards upscaling of viscoelastic properties. The obtained model links macroscopic behavior, i.e., creep compliance of concrete samples, to the composition of concrete at finer scales and the (supposedly) intrinsic material properties of distinct phases at these scales. Whereas finer-scale composition (and its history) is accessible through recently developed hydration models for the main clinker phases in ordinary Portland cement (OPC), viscous properties of the creep active constituent at finer scales, i.e., calcium-silicate-hydrates (CSH) are identified from macroscopic creep tests using the proposed multiscale model. The proposed multiscale model is assessed by different concrete creep tests reported in the open literature. Moreover, the model prediction is compared to a commonly used macroscopic creep model, the so-called B3 model.

Determinants of Health Information-Seeking Behavior: Implications for Post-Treatment Cancer Patients

  • Jung, Minsoo
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권16호
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    • pp.6499-6504
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    • 2014
  • Health information-seeking behavior (HISB) is active need-fulfillment behavior whereby health information is obtained from diverse sources, such as the media, and has emerged as an important issue within the transforming medical environment and the rise of medical consumers. However, little is known about the factors that affect HISB and its associations, and the health outcome of HISB. The aim of this study was to examine individual and social contextual factors associated with HISB and to systematically review their effects on health status among post-treatment cancer patients. Individual determinants of HISB included demographic factors, psychosocial factors, perceived efficacy and norms, and health beliefs. Contextual determinants of HISB encompassed community characteristics, neighborhood social capital, and media advocacy. Improving through factors on these two levels, HISB raised individuals' self-care management skills and medical treatment compliance, and enhanced shared decision-making and medical treatment satisfaction. Moreover, because HISB can differ according to individuals' social contextual conditions, it can give rise to communication inequalities. Because these can ultimately lead to health disparities between groups, social interest in HISB and balanced HISB promotion strategies are necessary.

유아의 요구의도 및 전략과 교사의 반응전략 (Intentions and Strategies of Children's Requests and Teacher's Responses)

  • 김희진;박혜영
    • 아동학회지
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    • 제22권1호
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    • pp.213-226
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    • 2001
  • In this study of intentions and strategies of children's requests and teachers' responses, the subjects were 20 teachers and 610 4- and 5-year-old children in 10 kindergartens. Each teacher wore an audio-recorder and one-to-one interactions between teacher and child were audiotaped during a 40-minute free play session. Children made requests most frequently with the intention of getting attention; they also made requests for the purpose of seeking information. In making requests, children utilized various strategies including direct, indirect, and physical strategies. Furthermore, their strategies were dependent on intention. Teachers most frequently responded to children with the strategy of committed compliance. Results were discussed in terms of roles of active children and responsive teachers in forming and maintaining good teacher-child relationships.

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GIS와 군집분석을 이용한 경관자원평가와 관리 - 제주도 경관을 대상으로 - (An Evaluation and Management of Landscape Resources through an Application of GIS and Cluster Analysis: In the case of Cheju island)

  • 서주환;윤재남
    • 한국조경학회지
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    • 제27권3호
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    • pp.88-97
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    • 1999
  • Current landscape management is focused towards managing uniformly, such as setting a limit on building's height and managing by putting first priority on building. For this reason, broader impact of landscape has not been studies thoroughly, and it was considered to be an important factor of not being able to operate diverse and active landscape management. Accordingly, the objective of this particular research to establish concrete and diverse device for managing landscape by adapting Map Algebra and Spatial Statistics, as one of the means of efficient landscape management, and applying the effectiveness of each landscape element in numerical value. Furthermore, this research was done in order to make a spatial estimation possible for resources to be located in compliance with each facility or landscape condition of individual region.

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Control of the Intraocular Pressure by Using the Micro Valve Actuator for a Glaucoma Implant

  • Byunghoon Bae;Park, Junhyun;Park, Kyihwan;Lee, Jonghyun;Lee, Yeon;Hongseok Kee;Kim, Seonho;Taeseok Sim;Kim, Yongkweon
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2002년도 ICCAS
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    • pp.74.6-74
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    • 2002
  • $\textbullet$ A new implant capable of controlling IOP actively and coping with personal difference among patients $\textbullet$ The valve actuator of the active implant is proposed and fabricated. $\textbullet$ In vitro experiments are carried out extensively with and without a rabbit. $\textbullet$ The experiments are conducted by using the open and closed loop pressure control. $\textbullet$ The experiment with the rabbit is similar as a in vivo experiment, $\textbullet$ since the compliance and the aqueous humor of the rabbit's eye are included. $\textbullet$ The experimental results verify the possibility of the valve actuator for a glaucoma implant.

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4-Phase DPSK를 이용한 2400bps모뎀의 시작연구 (Experimental Development of a 2400bps Modem using 4-Phase DPSK)

  • 김대영;김재균
    • 한국통신학회논문지
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    • 제7권3호
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    • pp.112-119
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    • 1982
  • CCITT V.26에 의거한 4-위상 DPSK 2400bps 모뎀이 설계 구성되었다. 회로 전체가 집적회로소자를 이용해 구성되었으며 능동 여파기와 반도체 지연장치가 사용되었다. 동기신호의 재생에 있어서 새롭고 간단한 방법을 시도하여 그 타당성을 확인하였다. Gaussian 잡음에 대한 에러율은(error rate) 이론치와의 차이가 매우 근소함이 확인되었다.

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슬라이딩 모우드 제어에 기초한 유연한 2링크 조작기의 진동제어 (Vibration Control of a Flexible Two-link Manipulator based on the Sliding Mode Control)

  • 채승훈;양현석;박영필
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2000년도 춘계학술대회논문집A
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    • pp.511-516
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    • 2000
  • In order to not only perform as a extreme model under the severe operating condition but also acquire more diverse and advanced control capability utilizing high compliance, active vibration control of a flexible 2-link robot manipulator are investigated. Multi variable-structured frequency shaped optimal sliding mode is proposed for the flexible robot manipulator like control system, whose control variables, an angular motion of joint and vibration of flexible link, have to be controlled simultaneously by one control torque at a driving joint. The control system is divided into two subsystems, a control input related subsystem and an added subsystem. The proposed sliding mode, composed of multi control variables, makes optimized relation between subsystems and a individual control input, thus, the sliding mode controller can compensate whole dynamics of each subsystems simultaneously. And the possibility and effectiveness are verified by vibration control of a manipulator having two flexible links. Simulation and experiment results show that the proposed control scheme achieves the purpose effectively.

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Nutritional Assessment and Nutritional Management for GI Cancer Patients

  • Mi Hyang Um;Yoo Kyoung Park
    • Journal of Digestive Cancer Research
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    • 제2권1호
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    • pp.15-20
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    • 2014
  • Cancer, especially GI cancer itself and any associated treatments have profound effect on the patient's nutritional status. It is therefore very important to understand various nutritional issues in GI cancer patients for the cure and for increasing the compliance during the course of the treatment. Screening and identification of nutritional risk for the GI cancer patients is very essential and is plays a critical part of the treatment to help improve patient outcomes. Maintaining optimal nutritional status is an important goal in the management of individuals diagnosed, treated with cancer. Maintenance of adequate nutritional intake is important whether patients are undergoing active therapy, recovering from cancer therapy, or are in remission and striving to avoid cancer recurrence. The goals of nutrition therapy are to prevent or reverse nutrient deficiencies, preserve lean body mass, help patients better tolerate treatments and minimize nutrition-related side effects and complications, etc. Recent interest in clinical settings is also in maximizing quality of life of the patients which can also be modulated by appropriate nutrition.

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