• Journal of Korean Society of Transportation
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• v.36 no.2
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• pp.67-85
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• 2018

Vehicle platooning through wireless communication and automated driving technology has become realized. Platooning is a technique in which several vehicles travel at regular intervals while maintaining a minimum safety distance. Truck platooning is of keen interest because it contributes to preventing truck crashes and reducing vehicle emissions, in addition to the increase in truck flow capacity. However, it should be noted that interactions between vehicle platoons and adjacent manually-driven vehicles (MV) significantly give an impact on the performance of traffic flow. In particular, when vehicles entering from on-ramp attempt to merge into the mainstream of freeway, proper interactions by adjusting platoon size and inter-platoon spacing are required to maximize traffic performance. This study developed a methodology for establishing operational strategies for truck platoonings on freeway on-ramp areas. Average speed and conflict rate were used as measure of effectiveness (MOE) to evaluate operational efficiency and safety. Microscopic traffic simulation experiments using VISSIM were conducted to evaluate the effectiveness of various platooning scenarios. A decision making process for selecting better platoon operations to satisfy operations and safety requirements was proposed. It was revealed that a platoon operating scenario with 50m inter-platoon spacing and the platoon consisting of 6 vehicles outperformed other scenarios. The proposed methodology would effectively support the realization of novel traffic management concepts in the era of automated driving environments.

• Transactions of the Korean Society of Automotive Engineers
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• v.13 no.3
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• pp.1-9
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• 2005

In this paper, an operation algorithm and a performance simulator are developed for a 42-volt ISG vehiclewhich consists of 5 kW ISG, 2500cc IC engine, torque converter and 4 speed automatic transmission. Modularapproach using MATLAB Simulink is used to construct a dynamic model of the vehicle powertrain which is obtainedfrom each component such as engine, battery, ISG, torque converter, etc.. An operation strategy for a 42-volt ISG vehicle including the function such as engine idle stop and regenerative braking is proposed. Performance simulator is developed based on the dynamic models of the powertrain. It is found from the simulation results that fuel economy can be improved as much as 6 percent for FTP75 driving cycle mostly owing to the engine idle stop.

• Journal of Arbitration Studies
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• v.17 no.1
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• pp.77-95
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• 2007

This article focuses on the history and evolution of the US court's attitude towards unilateral arbitration and dispute resolution clauses, but also considers the practical approach of national courts to theses clauses. It goes on to consider some potential pitfalls in the operation of unilateral clauses, which should be borne in mind when developing a strategy for bringing or defending a claim which falls within the scope of a unilateral clause. There can be few objections to the general validity of unilateral arbitration clauses. The principle of party autonomy is the driving force behind international arbitration and, provided it is tolerably clear that the parties intended the arbitration clause to operate unilaterally, courts should be reluctant to interfere with the parties' agreement. There are also no persuasive public policy reasons why such clauses should not be upheld in commercial agreements. In addition to the issue of whether such unilateral clauses are permissible under certain law, it is important to be aware of how they should properly operate in practice, that is, useful guidance on the subject of the proper operation and effect of such clauses where they are intended to be used to enable a party to decide whether, and in what circumstances, a claim should be referred to court or to arbitration.

• Culinary science and hospitality research
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• v.22 no.6
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• pp.132-144
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• 2016

This study reviewed previous researches about the competence selection of foodservice firms, and shows firm's performance model through the results. The study classified factors according to core competence, differentiation strategy, and management performance. Out of 400 survey responses from by the firm's executive and employees who had worked for over three years at the headquarters (sales, financial, marketing/plan, R & D, etc.), a total of 302 questionnaires were used for the final analysis due to missing values and biased responses (response rate: 75.5%). As the results of analyzing final research model of this study, it appeared that ${\chi}^2(df=170)=384.88$, ${\chi}^2/df=2.26$, GFI=0.90, NFI=0.92, CFI=0.95, RMSEA=0.07. The results indicated that the CEO leadership, organizational culture, and human resource competencies are a driving force in all aspects of competitive advantage differentiation strategies. In addition, the R & D innovation, service, and marketing differentiation strategies are positively related to performance. The results validate the fact that foodservice firms could reinforce strategic decisions through a variety core competencies and achieve continuous performance through competitive strategies.

• International Journal of Advanced Culture Technology
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• v.8 no.1
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• pp.135-140
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• 2020

The main battlefield of 'made in China 2025' proposed by the Chinese government is the deep integration of industrialization and informatization, among which intelligent manufacturing and new energy vehicles are the key links. New energy vehicle refers to the use of unconventional automotive fuel as a power source (or use conventional automotive fuel, the use of new vehicle-mounted power plant), integrated vehicle power control and driving aspects of advanced technology, the formation of advanced technical principles, with new technology and the structure of the vehicle. BYD's success in the battery, I T and automobile industries has attracted the attention of the industry, making it a shining new star in the Chinese business community. BYD 's innovation, diversification and corporate culture construction have certain enlightenment to the development of China's small and medium-sized enterprises. Therefore, by looking at the Chinese network literature, about BYD's research mainly focused on the development strategy, corporate finance, corporate performance, and corporate marketing, etc. This paper will take BYD as the research object and focus on corporate culture. Through literature analysis and qualitative analysis, it will summarize and further analyze the unique corporate culture of BYD, its important role, and provide relevant theoretical references for the construction and development of corporate culture in other industries.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.12
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• pp.2491-2502
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• 2015

Main issue for embodiment of smart factory in small-medium manufacturing business(SMMB) is to whether might be successful or not in achieving a goal, exact materializing for smart factory related technology, and in seeking possible solutions for limited capacity to invest and develop technology. It is required for effective driving of manufacturing innovation 3.0 paradigm that ensures expertise to push forward technology policy based on value chain level of SMMB, and ensures detailed action plans by investment priority and development of core technology against global trend. This paper focuses to suggest countermeasure strategy and task through analysis of advanced technology and patent trend about industrial IoT(IIoT) and cyber physical system(CPS), and support embodiment of smart factory in underlying manufacturing innovation 3.0 scheme.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.1 no.1
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• pp.11-26
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• 1978

Economic development is usually identified with the increased of G.N.P and capital formation connected directly wi:11 the net increase of land, structure, commodity, stocks and foreign claims, etc. The increase of G.N.P. is driving at capital formation. The usual concept of capital formation for economic development misses the important productivity factor of human capital. Because it is now increasingly realized that a massive injection of material into production will 11 not necessarily explain a successful productivity unless that country already possesses 1 suitable human capital. Human capital is built of educational investment which is related to the physical capital. Many statistical investigations identified this reality. Of late years, a great crowd of economists studying an the problem of economic development have turned their attention towards human capital. Thereupon, this paper has dealt with the fact that educational investment affects physical capital and employment. The qualitative increment of human capital will increase the productivity but excessive expenditure on human capital will squander a physical capital. In designing a strategy of human capital for economic development, one needs to consider tile level of educational investment because educational investment of developing countries will be accasionaly made or marred by investment level and direction.

• Journal of Information Technology Applications and Management
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• v.16 no.2
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• pp.79-98
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• 2009

IPTV has risen as a new driving force amid concerns against the saturated internet market and gained enormous attention of both the government and industry as niche market. Especially, IPTV banking which is one of the major services, IPTV has risen up recently as another financial service channel. Prior to the expansion of the new technology, this study attempts to predict its success possibility. In order to grasp variables that would effect formation of user intention of potential adopters, and external variables that influence user intention of IPTV banking have been confirmed and studied empirically based on Technology Acceptance Model(TAM). As a result, it was validated that self?efficacy, facilitating condition, social influence, and perceived importance to TV banking needs are the influential variables. Therefore, one may able to find appropriate direction of marketing activities for effective expansion of IPTV banking service through this study. Also, considering the fact that the number of service users has absolute influence over profit determination in the IPTV banking service industry, the study about characteristics and intention of such potential adopters could certainly be significant.

• Journal of Korean Library and Information Science Society
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• v.43 no.4
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• pp.317-346
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• 2012

The purpose of this article is to discuss about the progress and problems in Korean academic library policies. The emphasis is on identifying both contents and limitations in national plans for developing academic libraries, and investigating the current status and characteristics of major policy driving forces such as national library policy committees, government organizations, and professional associations. Also investigated is the current status and unique features of legal foundations, especially the present Korean Library Act and a tentatively named Korean University Library Promotion Act, which is being prepared for legislation. Finally this article suggests both direction and strategy for a healthy development of Korean academic library policies at national level.

• Transactions of the Korean Society of Automotive Engineers
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• v.21 no.3
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• pp.15-23
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• 2013

Weight reduction of a automobile has been steadily tried in automotive industry to improve fuel efficiency, driving performance and the production profits. Since the weight of BIW takes up a large portion of the total weight of the automobile, reducing the weight of BIW greatly contributes to reducing the total weight of the vehicle. To reduce weight, vehicle manufacturers have tried to apply lightweight materials, such as aluminum and high-strength steel, to the components of BIW instead of conventional steel. In this research, material arrangement of an automotive BIW was optimized by formulating a design problem to minimize weight of the BIW while satisfying design requirements about bending and torsional stiffness and perform a metamodel-based design optimization strategy. As a result of the design optimization, weight of the BIW is reduced by 45.7% while satisfying all design requirements.