• Journal of IKEEE
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• v.19 no.3
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• pp.447-454
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• 2015

In this paper, the complexity analysis for implementation of the PM-store is performed in terms of the number of instruction cycles which is executed by CPU in a personal health device(PHD) in order to transfer the large amount of the periodically generated measurement data using the PM-store concept defined in ISO/IEEE 11073 PHD standards. We propose an analytic model that is focused on the number of instruction cycles executed by CPU depending on the PM-store hierarchy.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.9 no.12
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• pp.5189-5208
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• 2015

To address the contradiction between data aggregation and data security in wireless sensor networks, a Recoverable Privacy-preserving Integrity-assured Data Aggregation (RPIDA) scheme is proposed based on privacy homomorphism and aggregate message authentication code. The proposed scheme provides both end-to-end privacy and data integrity for data aggregation in WSNs. In our scheme, the base station can recover each sensing data collected by all sensors even if these data have been aggregated by aggregators, thus can verify the integrity of all sensing data. Besides, with these individual sensing data, base station is able to perform any further operations on them, which means RPIDA is not limited in types of aggregation functions. The security analysis indicates that our proposal is resilient against typical security attacks; besides, it can detect and locate the malicious nodes in a certain range. The performance analysis shows that the proposed scheme has remarkable advantage over other asymmetric schemes in terms of computation and communication overhead. In order to evaluate the performance and the feasibility of our proposal, the prototype implementation is presented based on the TinyOS platform. The experiment results demonstrate that RPIDA is feasible and efficient for resource-constrained sensor nodes.

• The Journal of the Korea Contents Association
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• v.6 no.2
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• pp.136-145
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• 2006

To achieve this study, this study divide success factors of ERP implementation into organizational, environmental and information and group system information characteristics into form, content, source and supply frequency of information and is to verify an effect of two factors on system performance(user satisfaction). After selecting 250 SMBs in sample, this study use 79 questionaires for analysis. And all SMBs which was sampled in this study are manufacturing companies and don't consider respondent's position. The results of this study are as follows. First, there is a positive effect of a fit between organizational factors and system information characteristics on system performance. Second, there is a positive effect of a fit between environmental factors and system information characteristics on system performance. and third, there is positive effect of a fit between information factors and system information characteristics on system performance.

• Journal of Korean Society of Rural Planning
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• v.19 no.1
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• pp.55-70
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• 2013

Since 2004, Ministry for Food, Agriculture, Forestry and Fisheries(MIFAFF) has been carrying out comprehensive rural village development project as the core one of Rural Area Development Schemes in Korea. Up to now, 56 projects had been completed after having with 5-year plan implementation period, on which it is possible to try post-project evaluation works. This study aims to propose a rational income-generation works model of comprehensive rural village development project, based on fulfillment checking results of their statutory stepwise working procedures specified in the project guidelines and their interim/post project performance analysis results in 56 project areas above mentioned. In comprehensive rural village development project, income-generation works generally have both quantitative and qualitative effects to rural communities; the former is focussed on income increasement of villagers, while the latter on community revitalization through job creation and spill-over effects of other linked community activities. So, the research works of this study focussed on these two comprehensive effects above mentioned.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.30 no.6_2
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• pp.623-629
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• 2012

During the construction of crossing engineering one of the important measures to ensure the safety of subway operation is the implementation of deformation surveying to the existing subway tunnel. Guangzhou new subway line 2 engineering which crosses the existing tunnel is taken as the background. How to achieve intelligent and automatic deformation surveying forecast during the subway tunnel construction process is studied. Because large amount of surveying data exists in the subway construction, deformation analysis is difficult and prediction has low accuracy, a subway intelligent deformation prediction model based on the PBIL and support vector machine is proposed. The PBIL algorithm is used to optimize the exact key parameters combination of support vector machine though probability analysis and thereby the predictive ability of the model deformation is greatly improved. Through applications on the Guangzhou subway across deformation surveying deformation engineering the prediction method's predictive ability has high accuracy and the method has high practicality. It can support effective solution to the implementation of the comprehensive and accurate surveying and early warning under subway operation conditions with the environmental interference and complex deformation.

• KIEE International Transactions on Power Engineering
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• v.4A no.3
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• pp.129-133
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• 2004

This paper deals with the design and implementation of a TCSC (Thyristor Controlled Series Capacitor) simulator, which is a module for an analog type power system simulator. Principally, it presents configuration of controller hardware/software and its experimental results. An analog type power system simulator consists of numerous power system components, such as various types of generator models, scale-downed transmission line modules, transformer models, switches and FACTS (Flexible AC Transmission System) devices. It has been utilized for the verification of the control algorithm and the study of system characteristics analysis. This TCSC simulator is designed for 50% line compensation rate and considered for damping resister characteristic analysis. Its power rate is three phase 380V 20kVA. For hardware extendibility, its controller is designed with VMEBUS and its main CPU is TMS320C32 DSP (Digital Signal Processor). For real time control and communications, its controller is applied to the RTOS (Real Time Operation System) for multi-tasking. This RTOS is uC/OS-II. The experimental results of capacitive mode and inductive mode operations verify the fundamental operations of the TCSC.

• The Journal of the Korea institute of electronic communication sciences
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• v.13 no.1
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• pp.9-14
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• 2018

This study describes the design and implementation of IMUX(Input Multiplexer) for Satellite Communication. The IMUX unit for SHF band consists of Combine Filter, Power Splitter, Isolator and Channel Filter. Through the pre-simulation analysis of space environment, the possibility of the malfunction of equipment minimized and we designed a reliable IMUX through simulation for vibration analysis generated during the launch, and compared pre-simulation of main performance results to test results about main performances of IMUX after production.

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.545-552
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• 2008

It becomes to make its necessity of getting more closer approach for the design and the detailed analysis of implementation method and study with respect that the plan is put into shape for the interconnection between Seoul Line No.9 and the AREX line which has been on commercial running since it had been opened on March 2007. We introduce the concrete analysis and the rasied problems and a way how to solve as well for the characteristics of interconnection train and signaling 시스템tem structure between two lines in order to design and implement the interconnection running. Also,

• The Journal of Asian Finance, Economics and Business
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• v.7 no.2
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• pp.309-316
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• 2020

This study aims to measure the relationship between corporate social responsibility (CSR) and affective commitment (ACO), normative commitment (NCO), and organizational performance in food processing enterprises (FPEs) in the Mekong River Delta, Vietnam. To test the initial model proposed in this paper, a total of 422 owners, directors and managers of FPEs were interviewed from some provinces in the Mekong River Delta. The method of exploratory factor analysis (EFA) is initially employed, then confirmatory factor analysis (CFA) and structure equation modelling (SEM) are used. The results of SEM showed that higher affective commitment was correlated with normative commitment. The results showed that four aspects of CSR toward employees, customers, environment and legal are significant factors. As a result, ACO and NCO act as mediators between CSR and organizational performance. This finding provides strong evidence of the important role of CSR to support positive impacts on ACO, NCO, and orgazational performance (OP). In addition, the success of the organizational performance is also found by contributions of CSR and NCO to its changes. Although ACO does not directly affect performance, it has a positive effect on the NCO. Therefore, it is necessary to enhance the implementation of CSR to promote implementation of organizational commitments.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.10
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• pp.171-182
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• 2020

This research focuses on the importance of corporate social responsibility in building the company's reputation. Experts have studied CSR as an antecedent of a company's reputation, but the mechanisms underlying this process are rarely explored. Therefore, to fill this research gap, we demonstrate CSR's implementation combined with organizational justice based on discrepancy and equity theory. This study involved 210 employees in a family company. The study's analysis method uses Structural Equation Model (SEM), SmartPLS, with a five-step measurement and analysis procedure. The variables in this study are CSR implementation, organizational justice, employee trust, firm reputation, organizational objectiveness, organizational commitment, job satisfaction, and job performance. The results found that some of the direct relationships stated were not significant, but all demonstrations of indirect links were substantial. Besides, optimal CSR and organizational justice provide a reliable and positive domino effect in increasing the role and consequences of employee trust and firm reputation. The findings in this study confirm that upstream-downstream job performance causality can be successfully achieved if job satisfaction has been realized, job satisfaction can be achieved if organizational commitment can also be recognized, and organizational commitment can be developed. Reflection and influence, rather than organizational attractiveness becomes essential.