• Journal of Navigation and Port Research
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• v.39 no.5
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• pp.423-429
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• 2015

The expansion on the scale of international trade and rapid economic growth in Northeast Asia have caused intense competition among global companies for securing international logistics center in Northeast Asia. Analyzing location competitiveness for international logistics center in Northeast Asia, this paper aims to extract implications for enhancing locational competitiveness. Employing the relative importance among location selection factors extracted from AHP analysis in prior study, we evaluated the major five port-cities in Northeast Asia including Busan, Gwangyang, Shanghai, Qingdao and Tokyo. In the evaluations, Shanghai (3.926) ranked as the first, followed by Busan (3.859), Qingdao (3.555), Tokyo (3.013) and Gwangyang (2.915). Furthermore, the causal relationships between determinants for location choice decision (logistics factor, cost factor, market factor, service factor and environmental factor) and dependent variables (competitiveness of international logistics center, potentiality to growth, present intention to move into and future plan to move into) were analyzed to provide implications. Results provide useful insights for further improvements, and helps strategic agenda for future development of port-cities.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.42 no.7 s.337
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• pp.7-18
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• 2005

Geomulticast is a specialized location-dependent multicasting technique, where messages are multicast to some specific user groups within a specifc zone. In this paper, we propose architectures and protocols for supporting geomulticast services in a cost effective way and with high message delivery accuracy in the challenging environment of mobile ad-hoc networks. Furthermore, we define and formulate a framework in order to evaluate the performance of the design alternatives used for the support of geomulticast services in mobile ad-hoc networks. Based on this framework, we evaluate the performance of the proposed architectures and protocols and we obtain some insight about the impact of the various design and operational parameters on the overall system performance.

• Information Systems Review
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• v.20 no.2
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• pp.209-226
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• 2018

Location-based services have distinctive service characteristics compared to the past online commerce used on the desktop. In any place, mobile communication devices can be used to access online and utilize online shopping, and it is more convenient for users. In addition, by providing shopping and service information specific to each location, it is possible to provide convenience to the consumers according to their locations. In addition, it provides scarcity of information as well as location, thereby increasing consumers' desire to purchase. In this study, we investigated the effect of scarcity on the Purchase intention of consumers in location-based services. The steps of scarcity are: first, a step without scarcity, Second, providing time limit information, Third, providing quantity limitation information, Fourth, the experiment was designed to provide time and quantity limitation, and 4 groups were analyzed through experimental stimuli The purpose of this study is to verify the moderating effect of the dependent variable on the degree of scarcity by adding 'ubiquity', 'interactivity' and 'privacy' which are characteristics of location-based service. As a result of the analysis, scarcity of time and scarcity of quantity limitation scarcity stimuli showed a moderating effect on ubiquity, interactivity and consumer's purchase intention, and these variables also directly or indirectly affected positively. Consumer confidence was found to have a negative effect on consumers' purchase intentions.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.6 no.2
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• pp.51-73
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• 2011

This study aims to examine factors affecting small food service business performance, which is assumed to be dependent primarily on its outskirt's residents. In contrast to the prior research, this paper measures saveral location traits as a separate service business success factor without including the factor in management factors. The empirical results show that small food service's sales can be determined significantly by business career in entrepreneurs' background features. Secondly, its sales can't be influenced by any psychlogical factors such as a desire of achievement, a propensity of risk taking and locus of control. It is assumed that questions about psychological traits based by the prior research do not suit for small food entrepreneur. Thirdly, qualified product have a significant effect on its sales. Finally, its sales can be significantly impacted by the number of customer chair.

• Journal of Korea Port Economic Association
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• v.24 no.4
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• pp.199-217
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• 2008

Many studies have identified the determinants of shippers' selection of ports, and of these, a number have repetitively cited major elements. However, different researchers came up with somewhat different research results depending on the position and preference of research targets. Accordingly, to deduce the determinants of shippers' selection of Gwangyang Port, appropriate research and analysis is required in addition to literature study. This study first deduced from previous studies the determinants that have influence on shippers when selecting a port and positively analyzed the effects of those determinants on the shippers using Gwangyang Port. In this regard, whether shippers using Gwangyang Port have continuously used the port was set as a dependent variable, and port service, port facilities, location of ports, port costs, and other determinants for port selection deduced in the previous studies were set as independent variables. This study's analysis finds shippers using Gwangyang Port are all influenced by the elements of port service, port facilities, location of ports, and port costs in their selection of Gwangyang Port. Their degree of importance is in the order of port costs, location of ports, port service and port facilities. This indicates that shippers consider port costs and location of ports more important than port facilities in their selection of a port.

• Journal of the Korea Safety Management & Science
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• v.12 no.4
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• pp.265-272
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• 2010

This study examined the relative effects of weekly and daily group feedback on the customer service behaviors in a gas station. Participants were four employees providing full services to the customers. Four target service behaviors, which were identified from the job description for the employees, served as the dependent variables. The data were collected by a supervisor. The independent variable was the frequency of group feedback on the four service behaviors: weekly and daily group feedback. An ABC within group design was adopted. After baseline (A), the weekly group feedback condition (B) was introduced. In the next phase, the daily group feedback condition (C) was introduced. Both weekly and daily group feedback were presented in a graph form and posted at a conspicuous location. Results showed that both weekly feedback and daily feedback conditions were effective in increasing the target behaviors. And, there was difference in the effects between the two conditions.

• International Journal of Fuzzy Logic and Intelligent Systems
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• v.4 no.1
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• pp.23-28
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• 2004

This paper proposes a sensor-fusion technique where the data sets for the previous moments are properly transformed and fused into the current data sets to enable accurate measurement, such as, distance to an obstacle and location of the service robot itself. In the conventional fusion schemes, the measurement is dependent on the current data sets. As the results, more of sensors are required to measure a certain physical parameter or to improve the accuracy of the measurement. However, in this approach, instead of adding more sensors to the system, the temporal sequence of the data sets are stored and utilized for the measurement improvement. Theoretical basis is illustrated by examples and the effectiveness is proved through the simulations. Finally, the new space and time sensor fusion(STSF) scheme is applied to the control of a mobile robot in an unstructured environment as well as structured environment.

• Journal of Nutrition and Health
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• v.29 no.7
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• pp.830-838
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• 1996

The purpose of this study were to : a) examine the current foodservice management practices by different types of elder-care sites, b)evaluate the attitudes of recipients of meal service programs, and c) provide feedback for the efficient and effective foodservice management of elder-care sites in Korea. A total of 91 elderly congregate sites was analyzed in Survey 1 and opinons of 190 recipients were surveyed in Survey 2. According to the result of meal cost analysis, the meal cost per a day was ranged from ￦728 to ￦5,500. Only 16.5% elder-care sites had one dietitian due to the lack of budges and the isolated geographical location of sites. These results suggested that financial and dystematical supports by the government would be very necessary to meet the goal of nutritional-balanced meal services at congregate sites. The survey results of recipients at sites, the mean of meal satisfaction score was rated 3.63 at the five-point scales. Significante differences were found between dependent variables(food, convenience, atmospere, menu, facility, and service) and independent variables(site type, gender, living years at sites, and health status). Thus, foodservice managers must consider characteristics of participants for menu planning, service, and distribution.

• Journal of Korea Spatial Information System Society
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• v.11 no.1
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• pp.87-96
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• 2009

In u-GIS environments, a geographic information service system for mobile phone is consumer(user) oriented service system based on existing GIS and LBS considering characteristic of mobile phone. In the past, development of a geographic information service system for mobile phone dependent on various hardware specification of mobile phones and mobile operators. From now on, the geographic information service system for mobile phone independents on hardware specification of mobile phones and mobile operators. Also, it changes from service oriented GIS provider(specialist) to service oriented consumer. For the satisfaction of this requirement, we propose a design of geographic information service system for mobile phone using FLEX for creates standard execution file. The standard execution file is able to apply various mobile phone. And we propose a management method of picture contents combination of location information that geographic information service system for mobile phone is provided it firstly. In this system, it provides facilities that display map, manage location, manage contents, manage mash-up, manage map data. And then it provide facility of swf generation for display result map on mobile phone. In this paper, we are implemented the proposed system and seen same results in various mobile phone. The created *.swf file provides same result at any time, anywhere, anyone in spite of different zoom level and different display screen.

• ETRI Journal
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• v.31 no.4
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• pp.365-375
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• 2009

In this paper, a terrestrial digital multimedia broadcasting (T-DMB) multichannel audio broadcasting system based on spatial audio coding is presented. The proposed system provides realistic multichannel audio service via T-DMB with a small increase of data rate as well as backward compatibility with the conventional stereo-based T-DMB player. To reduce the data rate for additional multichannel audio signals, we compress the multichannel audio signals using the sound source location cue coding algorithm, which is an efficient parametric multichannel audio compression technique. For compatibility, we use the dependent property of an elementary stream descriptor, and this property should be ignored in a conventional T-DMB player. To verify the feasibility of the proposed system, we implement the T-DMB multichannel audio encoder and a prototype player. We perform a compatibility test using the T-DMB multichannel audio encoder and conventional T-DMB players. The test demonstrates that the proposed system is compatible with a conventional T-DMB player and that it can provide a promisingly rich audio service.