• Journal of the Korea Convergence Society
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• v.11 no.9
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• pp.333-340
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• 2020

The purpose of this study is to find out what the contribution of medical service design to improve the quality of medical service has contributed to the resolution of medical authority, and to draw the implications necessary to further develop the medical service industry. As a method of research, first, the concept of medical authority was considered and the internal and external factors of medical authority were examined. Second, by examining the cases of medical service design, which resolved the medical emphasis inherent in internal and external factors, the key points and significance of problem solving were analyzed based on the core results. Third, the implications were to form a patient-centered medical culture for respect and dignity for patients, to break up the conventions inside medical staff to dismantle medical authority, and to establish a fair communication system for sharing medical information.

• Elastomers and Composites
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• v.55 no.2
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• pp.81-87
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• 2020

Service life prediction and evaluation of rubber components is the foundational technology necessary for securing the safety and reliability of the product and to ensure an optimum design. Even though the domestic industry has recognized the importance thereof, technology for a systematic design and analysis of the same has not yet been established. In order to develop this technology, identifying the fatigue damage parameters that affect service life is imperative. Most anti-vibration rubber components had been damaged by repeated load and aging. Hence, the evaluation of the fatigue characteristics is indispensable. Therefore, in this paper, we propose a method that can predict the service life of rubber components relatively accurately in a short period of time. This method works even in the initial designing stage. We followed the service life prediction procedure of the proposed rubber components. The weak part of the rubber and the maximum strain were analyzed using finite element analysis of the rubber bushing for the tracked vehicles. In order to predict the service life of the rubber components that were in storage for a certain period of time, the fatigue test was performed on the three-dimensional dumbbell specimen, based on the results obtained by the rubber material acceleration test. The service life formula of the rubber bushing for tracked vehicles was derived using both finite element analysis and the fatigue test. The service life of the rubber bushing for tracked vehicles was estimated to be about 1.7 million cycles at room temperature (initial stage) and about 400,000 cycles when kept in storage for 3 years. Through this paper, the service life for various rubber parts is expected be predicted and evaluated. This will contribute to improving the durability and reliability of rubber components.

• The Journal of the Korea Contents Association
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• v.21 no.7
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• pp.500-509
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• 2021

The purpose of this study is to find out the effect and possibility of instructional design conducted by integrating writing education and community service activities based on service learning. Service learning is a teaching method that encourages students to improve learning and self-development through experience by applying the knowledge they have learned in college to the real life of the community. After the course was operated, the effectiveness of the teaching method investigated and analyzed for the participating university students, beneficiaries of service, and staffs of service organization. As a result of the study, meaningful results in cognitive, affective, and social aspects were presented for university students, and positive effects and high satisfaction were confirmed for beneficiaries of service and staffs. As a teaching methord that considers the growth and development of students from various angles. the quantitative and qualitative performance analysis and research of service learning should be conducted continuously.

• Journal of Digital Convergence
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• v.17 no.2
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• pp.389-397
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• 2019

The purpose of this study is to present guidelines for service design for efficient operation of Maker Space due to the proliferation of Maker Movement. First, we investigate the literature survey and prior research on the definition and status of Maker space. Second, we performed video ethnography, participant observation and in-depth interview on maker space service by qualitative survey method. Third, we analyze the surveyed contents and present guidelines such as Persona or Blueprint for maker space. We classify Maker space into general lab and professional lab, derive Persona from each Maker space, and establish Blueprint to provide guidelines for design and operation. It is expected that the Maker space service design presented in this study can be used as a guideline to help the service improvement of the existing Maker space and the planning, design and operation of the new Maker space.

• Journal of Distribution Science
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• v.19 no.9
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• pp.29-39
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• 2021

Purpose: Nowadays, café shop chains are becoming a trend and growing rapidly in Vietnam. There are numerous people who spend their time in cafes and this has become part of the current lifestyle. Therefore, cafe chains owners compete in offering new cafe concepts to attract customers and deliver their values to customers effectively. To gain competitiveness and attractiveness, a cafe must possess an interesting servicescape and provide a good impression toward customers in a cafe. Therefore, this study is to evaluate the role of servicescape as an antecedent to service quality and behavioral intentions in the Vietnam market. Research design, data, and methodology: The study was conducted through survey questionnaires who had used the service at coffee shop chains in cities of Vietnam. We apply the PLS-SEM method to analyze data and test hypotheses. Results: Servicescape is a second-order construct including hygiene, space, ambiance, design, and equipment. Servicescape also impacts directly on overall service quality, employee service quality, and behavioral intention. Conclusions: Servicescape plays a role as an antecedent for service quality and behavioral intention. Therefore, it confirms the importance of managing servicescape in order to deliver more value to customers through improving service quality so that enhance intention to return to use services in coffee shop chains.

• IE interfaces
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• v.23 no.2
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• pp.193-202
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• 2010

The quality of service(QoS) model should be presented with the optimal network design to effectively provide the multimedia data services between users and converged services with mobile or TV in the next-generation Internet. In specific, the method to provide differentiated services for each user is needed in the given Internet node to offer the previously negotiated QoS with the user. In this paper, the performance of the QoS enabling technologies in the differentiated services(DiffServ) network domain is analyzed. The QoS offering model and QoS metrics are presented to analyze the performance of the major scheduling algorithms. Under the real network topology and virtual service scenarios in the university, the NS-2 network simulation based on the discrete-event is performed. The results show that the ratio-based scheduling method is more effective rather than the bandwidth-assignment method.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 1991.10a
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• pp.155-158
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• 1991

In this paper, we investigate key issues and the CCITT activities related to the quality of service in the B-ISDN based on the ATM. We first clarify the relationships between the QOS(Quality of Service). NP(Network Performance), and GOS(Grade of Service). Using the GOS, network design and tuning method is suggested. Also, we examine the performance impairments and key NP parameters in ATM networks.

• Transactions of the Korean Society of Automotive Engineers
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• v.5 no.6
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• pp.13-27
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• 1997

In the modern design technology, a component should be designed to fit into the overall system performance. A design methodology is developed to expedite the mechan- ical design of complex mechanical systems, The relation between the system design and component design is defined by a top-down approach and the results from the system design are utilized in the component design process. As a design example, an automobile exhaust system is selected for the system design and a bellows is chosen for a component design. Design methodology based on the top-down approach consists of five steps; (1) Analysis of service load, (2) Development of a lumped parameter, (3) Completion of the system design, (4) Selection of the component topology, (5) Completion of the component design, A method using a equivalent matrix is developed in order to determine unknown external forces in linear structural analyses. The bellows is also analyzed by the finite element method using a conical frustum shell element. Various experiments are performed to verify the developed theories. The top-down desi- gn approach is demonstrated by a design case using structural and shape optimization technology. Since the method is relatively simple and easy compared to other methods, it can be applied to the general design where system and component designs are involves simultaneously.

• Proceedings of the Korea Concrete Institute Conference
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• 2000.10a
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• pp.253-258
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• 2000

Recently, the area of design optimization, especially structural optimization, has been and to be a continuous active area of research. And the design optimizations of port facilities have been achieved by many other civil engineers. But the design optimization of port facilities were limited to the design optimization of the breasting dolphin. This paper invested the design optimization of mooring pier and the foundations of mooring pier was suggested considering the convenience of repair and reinforcement work. The mooring pier devised with prestressed precast concrete panel and rigid frame welded wide flange beam to steel pipe pile. To accomplish the design optimization of mooring pier, the Augmented Lagrangian Multiplier Method(ALM) of ADS(Garret N. Vanderplaats) optimization routine, BFGS method as optimizer and Golden Section Method as one dimensional search were utilized. As a result, thirty percent of material cost for construction was reduced by design optimization. The tensile stress of concrete panel and bottom flage was critical constraints under service load. So, using high strength concrete and steel will be economical. And lots of initial values must be invested to accomplish the design optimization in design procedures.

• Journal of the Korea Society of Computer and Information
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• v.21 no.5
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• pp.57-64
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• 2016

In this paper, we propose the design of railway safety common data model to provide common transformation method for collecting data from railway facility fields to Real-time railway safety monitoring and control system. This common data model is divided into five abstract sub-models according to the characteristics of data such as 'StateInfoMessage', 'ControlMessage', 'RequestMessage', 'ResponseMessage' and 'ExtendedXXXMessage'. This kind of model structure allows diverse heterogeneous data acquisitions and its common conversion method to DDS (Data Distribution Service) format to share data to the sub-systems of Real-time railway safety monitoring and control system. This paper contains the design of common data model and its DDS Topic expression for DDS communication, and presents two kinds of data transformation case studied for verification of the model design.