• Title/Summary/Keyword: Quality Adaptation

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Hybrid Type II fuzzy system & data mining approach for surface finish

  • Tseng, Tzu-Liang (Bill);Jiang, Fuhua;Kwon, Yongjin (James)
    • Journal of Computational Design and Engineering
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    • v.2 no.3
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    • pp.137-147
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    • 2015
  • In this study, a new methodology in predicting a system output has been investigated by applying a data mining technique and a hybrid type II fuzzy system in CNC turning operations. The purpose was to generate a supplemental control function under the dynamic machining environment, where unforeseeable changes may occur frequently. Two different types of membership functions were developed for the fuzzy logic systems and also by combining the two types, a hybrid system was generated. Genetic algorithm was used for fuzzy adaptation in the control system. Fuzzy rules are automatically modified in the process of genetic algorithm training. The computational results showed that the hybrid system with a genetic adaptation generated a far better accuracy. The hybrid fuzzy system with genetic algorithm training demonstrated more effective prediction capability and a strong potential for the implementation into existing control functions.

A Study on the Light Adaptation of Interior Space - Focused on the Space of Cinema and Exhibition - (실내공간의 빛 순응에 관한 연구 - 영화관과 전시공간을 중심으로 -)

  • Lee, Chang-Yoon;Oh, In-Wook
    • Korean Institute of Interior Design Journal
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    • v.16 no.3 s.62
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    • pp.111-118
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    • 2007
  • Using effective light, which is physical experiences by its control and manner of adaption, and make human to recognize the shape and give the meaning, so that approaching against perception experimental method which plays a role in basic clue, is regarded crucial highly among human sensory organ. this study consider the perception conception, its feature and necessity against eyes' adaption among human perception experimental experiences which has been discussed indifferently for inner space. Also, we looked over the problems among actual examples of inner spaces which should be considered as to adaption conception of human beings. Furthermore, this study aims at basic studying, which searching for enable to adapt in case of planning for inner space planning and distributing the quality evaluation by using effective light.

A $160{\times}120$ Light-Adaptive CMOS Vision Chip for Edge Detection Based on a Retinal Structure Using a Saturating Resistive Network

  • Kong, Jae-Sung;Kim, Sang-Heon;Sung, Dong-Kyu;Shin, Jang-Kyoo
    • ETRI Journal
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    • v.29 no.1
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    • pp.59-69
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    • 2007
  • We designed and fabricated a vision chip for edge detection with a $160{\times}120$ pixel array by using 0.35 ${\mu}m$ standard complementary metal-oxide-semiconductor (CMOS) technology. The designed vision chip is based on a retinal structure with a resistive network to improve the speed of operation. To improve the quality of final edge images, we applied a saturating resistive circuit to the resistive network. The light-adaptation mechanism of the edge detection circuit was quantitatively analyzed using a simple model of the saturating resistive element. To verify improvement, we compared the simulation results of the proposed circuit to the results of previous circuits.

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Development of the Prevention Guideline of Deep Vein Thrombosis in Patients with Surgery according to the Guideline Adaptation Process (수술환자의 심부정맥혈전증 예방 지침 수용개작)

  • Yoon, Ji Hyun;Lee, Ihn Seon;Lee, Kyeong Yoon;Jang, Mi Ja;Lee, Jung Min;Nam, Min Sun;Park, Ji Hyeon;Hwang, Ji Won;Song, Hyun Ju;Cho, Yong Ae;Kwon, In Gak;Kim, Mi Young
    • Journal of Korean Clinical Nursing Research
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    • v.20 no.3
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    • pp.337-347
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    • 2014
  • Purpose: Deep Vein Thrombosis (DVT) is the cause of fatal diseases such as pulmonary embolism, due to a prolonged immobility, surgery, paralysis, and injuries. This study aimed to develop an evidence-based practice guideline for DVT prevention and apply it to patients with surgery in diverse nursing sites in South Korea. Methods: A 24-staged processes of adaptation was carried out on the basis of "adaptation of nursing practical guidelines" developed by Gu et al., in 2012. Results: Developed nursing guidelines of DVT prevention are composed of 79 recommendations in 8 domains. The extent and ratings of each recommendation with its evidence were addressed along with the background information. Conclusion: The developed DVT prevention guideline is necessary to be added to the evidence-based practice guidelines for the fundamentals of nursing practice. The developed guideline is needed to be disseminated to diverse nursing clinical settings in order to prevent DVT and enhance the quality nursing care.

Methodology for real-time adaptation of tunnels support using the observational method

  • Miranda, Tiago;Dias, Daniel;Pinheiro, Marisa;Eclaircy-Caudron, Stephanie
    • Geomechanics and Engineering
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    • v.8 no.2
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    • pp.153-171
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    • 2015
  • The observational method in tunnel engineering allows the evaluation in real time of the actual conditions of the ground and to take measures if its behavior deviates considerably from predictions. However, it lacks a consistent and structured methodology to use the monitoring data to adapt the support system in real time. The definition of limit criteria above which adaptation is required are not defined and complex inverse analysis procedures (Rechea et al. 2008, Levasseur et al. 2010, Zentar et al. 2001, Lecampion et al. 2002, Finno and Calvello 2005, Goh 1999, Cui and Pan 2012, Deng et al. 2010, Mathew and Lehane 2013, Sharifzadeh et al. 2012, 2013) may be needed to consistently analyze the problem. In this paper a methodology for the real time adaptation of the support systems during tunneling is presented. In a first step limit criteria for displacements and stresses are proposed. The methodology uses graphics that are constructed during the project stage based on parametric calculations to assist in the process and when these graphics are not available, since it is not possible to predict every possible scenario, inverse analysis calculations are carried out. The methodology is applied to the "Bois de Peu" tunnel which is composed by two tubes with over 500 m long. High uncertainty levels existed concerning the heterogeneity of the soil and consequently in the geomechanical design parameters. The methodology was applied in four sections and the results focus on two of them. It is shown that the methodology has potential to be applied in real cases contributing for a consistent approach of a real time adaptation of the support system and highlight the importance of the existence of good quality and specific monitoring data to improve the inverse analysis procedure.

A Qualitative Study on Attitude, Acceptability, and Adaptation for Home-delivered Meal Services in the Korean Elderly from the Perspective of Life Context (질적 연구를 통한 삶의 맥락적 관점에서의 노인의 도시락 및 밑반찬 배달 서비스에 대한 수용 태도 및 적응에 대한 이해)

  • Hwang, Ji-Yun;Kim, Bokyoung;Kim, Kirang
    • Korean Journal of Community Nutrition
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    • v.19 no.5
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    • pp.459-467
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    • 2014
  • Objectives: The purpose of this study was to suggest the strategies for improvement of home-delivered meal services for the elderly, to identify reasons for recipients to get started with the services and to evaluate the attitude, acceptability and adaptation of recipients to the services from the perspective of life context. Methods: The data was collected through face-to-face in-depth interviews with eighteen low-income elderly recipients of home-delivered meals and analyzed using a qualitative research method. Results: The results were deduced as four themes which comprised of long-term vulnerable socioeconomic contexts resulted in entry to the services, conflicting acceptability to the services, passive adaptation to taking the services, and positive practices to cope with supplement free meals or other services. The service participation was initiated because of a combination of prolonged, vulnerable socioeconomic contexts, including poverty and unexpected life events such as diseases, disability, living alone, aging and unemployment. With regard to taking the services, conflicting acceptability was observed: positive aspects including saving living cost and good quality of meals, and negative aspects including lack of a tailored service and feeling of stigma. Although the recipients needed an individualized service, they did not express their needs and demands for the services and they accepted the unavailability as an accustomed, prolonged vulnerable socioeconomic context. With regard to lack of tailored services, either self-solution such as modification of eating patterns or community-based network and services were used. Conclusions: We suggest that a system to concretely identify recipients' attitude, acceptability and adaptation for home-delivered meal services should be developed in the establishment of a tailored nutrition support system for the low-income elderly.

The Effects of Productization, Organizational, Overseas Market Adaptation Competences on Export Performance: Focus on Korean Electromagnetic Wave Shielding Firms (기업의 제품화 역량, 조직역량, 해외시장 적응역량이 수출성과에 미치는 영향: 전자파 차폐 기업을 중심으로)

  • Park, Won-Cheol;Oh, Ka-Young
    • Asia-Pacific Journal of Business
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    • v.11 no.3
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    • pp.307-344
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    • 2020
  • Purpose - The purpose of this study is to examine effects of productization and organizational competences on export performance of electromagnetic shielding companies and to analyze moderating effects of overseas market adaptation competences. For this, hypotheses were established by reviewing previous studies and an empirical analysis was conducted for testing. Design/methodology/approach - For this study, a survey was conducted for workers at electromagnetic shielding companies and 250 valid responses out of 300 questionnaires were aquired. A frequency analysis of related variables was conducted. Through an exploratory factor analysis, validity and reliability tests of measuring tools were conducted and a descriptive statistics was analyzed for collected data result and hypotheses testing. Findings - A correlation analysis was conducted to examine relationships among variables. Construct, convergent and discriminant validities were analyzed after a confirmatory factor analysis and a multi-group confirmatory factor analysis. Finally, with a verified model, the hypotheses and the moderating effects were tested. The results are as follows: First, the productization competence has a positive effect on export performance; Second, the organizational competence has a positive effect on export performance. Especially, the organizational competence has more effect on export performance than the productization competence. Although a development of new technology and product is important in terms of performance, along with these competences, a way of acquiring new skills and knowledge, and internalization and adaptation in organizations have more effect on export performance. Third, overseas market adaptation competence moderates effects of organizational and productization competences. Research implications or Originality - It is necessary to seek out opportunities for workers to participate in actively, such as conferences and seminars, to strengthen organizational competence. It is strongly believed that a constant development of high quality product will contribute to export performance. Lastly, in a policy level, supports on SMEs by governments are to be strengthened by providing with finance and human resource.

A Study on the Adaptation of Social Workers Dedicated to Individualized Support Service for Older Adults (노인맞춤돌봄 전담사회복지사의 업무적응에 관한 연구)

  • Ji-Hye Kim;Ji-A Lee;Byung-Woo Lim;So-Ra Kim
    • Journal of Industrial Convergence
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    • v.22 no.8
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    • pp.37-50
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    • 2024
  • The elderly customized care service, which began in 2020, aims to improve professionalism and service quality by introducing dedicated social workers for responsible management of living area performing institutions. Through inductive content analysis, this study attempted to examine the work adaptation process of dedicated social workers who are human resources performing the elderly customized care service system. As a result, 9 upper categories, 25 lower categories, and 56 conceptualizations were derived. This study attempted to provide basic policy data on the adaptation of dedicated social workers by exploring new policies and special work systems from the perspective of practitioners.

Quality Design Support System based on Data Mining Approach (데이터 마이닝 기반의 품질설계지원시스템)

  • 지원철
    • Journal of the Korean Operations Research and Management Science Society
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    • v.28 no.3
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    • pp.31-47
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    • 2003
  • Quality design in practice highly depends on human designer's intuition and past experiences due to lack of formal knowledge about the relationship among 10 variables. This paper represents an data mining approach for developing quality design support system that integrates Case Based Reasoning (CBR) and Artificial Neural Networks (ANN) to effectively support all the steps in quality design process. CBR stores design cases in a systematic way and retrieve them quickly and accurately. ANN predicts the resulting quality attributes of design alternatives that are generated from CBR's adaptation process. When the predicted attributes fail to meet the target values, quality design simulation starts to further adapt the alternatives to the customer's new orders. To implement the quality design simulation, this paper suggests (1) the data screening method based on ξ-$\delta$ Ball to obtain the robust ANN models from the large production data bases, (2) the procedure of quality design simulation using ANN and (3) model management system that helps users find the appropriate one from the ANN model base. The integration of CBR and ANN provides quality design engineers the way that produces consistent and reliable design solutions in the remarkably reduced time.

An Architecture for User Level End-to-end QoS using Overlay in NGN (NGN에서 오버레이를 이용한 사용자 관점의 End-to-end QoS 지원 구조)

  • Lee Jihyun;Lim Kyungshik;Oh Hangseok;Nam Taekyong
    • The KIPS Transactions:PartC
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    • v.12C no.6 s.102
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    • pp.781-792
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    • 2005
  • This study proposes an Architecture for user level End-to-end Quality of Service(QoS) using overlay In Next Generation Network(NGN). Inexisting NGNs, the IMS of a control plane provides user QoS through direct traffic control and resource-reservation over the IP packet transport network of a user plane. Further, a set of torrent studies are ongoing not only to maximize the QoS for users, but also to minimize the quality deterioration for supporting the user End-to-end QoS. Along with that, an extended QoS in user level must be considered, for Instance, differentiating service quality to support users' expectation, providing optimized contents by users' equipments, and so forth. Accordingly, the Overlay Service Network Architecture proposed by this study provides protocol adaptation for maximum throughput on transport layer by using the most efficient transport layer protocol to various network circumstances. Also, the Overlay Service Network Architecture on application layer distributes processing delay from the data transformation process of the user equipment to the network, and it is capable of intermediate processing depending on user service level. application service feature, and equipment circumstance as well. Thus, this study mainly proposes the Overlay Service Network Architecture for user level end-to-end QoS in NGN with the quality control features both on the transport layer and the application layer, an internal component feature, and a service scenario providing the QoS linking with 3GPP.