• Spatial Information Research
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• v.7 no.2
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• pp.209-221
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• 1999

In this research, AVL-GIS(Automatic Vehicle Location System linked with Geographic Information System) system was developed using integration of core techniques of GIS engine written by Java language, GOS(Global Positioning System) and wireless telecommunication interfacing techniques. IDGPS(Inverted differential GPS) techniques was employed to estimate accurate position of mobile vehicle and to supervise their path from AVL-GLS control center system. Between mobile vehicle and AVL-GLS control center system which has spatial data analysis function, road network and rleate ddata base were connected wireless phone to communicate for position an dmessage in real time. The developed system from this research has more enhanced GIS functions rather than previous AVL oriented system which has MDT for message display and voice communication only. This system can support build-up application system such as fleet management like bus, taxi, truck, disaster and emergency and monitoring of transportation status for customer s order via web browser in filed of EC/CALS in low cost.

• Restorative Dentistry and Endodontics
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• v.45 no.2
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• pp.4.1-4.6
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• 2020

Although numerous studies have been conducted on apexification using mineral trioxide aggregate (MTA), direct observation of extracted human teeth after the procedure has been rarely reported. This case report describes a mandibular premolar treated 2.5 years ago and extracted recently for orthodontic treatment. The tubercle of the right mandibular premolar of a 12-year-old boy with dens evaginatus was fractured and the pulp was exposed. The tooth was diagnosed with pulp necrosis and asymptomatic periapical abscess. During the first visit, copious irrigation was performed with 2.5% sodium hypochlorite. Calcium hydroxide paste was placed as an intracanal medicament. The sinus tract had disappeared at the second visit after 3 weeks. MTA was applied on to the bleeding point as a 4-mm-thick layer, followed by a 3-mm-thick gutta-percha filling and resin core build-up. After 2.5 years, the tooth and three other premolars were extracted for orthodontic treatment. The right and left mandibular premolars were scanned with micro-computed tomography to determine the root shape and canal anatomy. Irregular root growth was observed and the root outline of the right mandibular premolar differed from that of the contralateral tooth. Apexification with MTA leads to the formation of roots with irregular morphology, without any pulpal space.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.8
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• pp.1836-1842
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• 2010

Sensor network, which is technology to realize the ubiquitous environment, recently, could apply to the field of Mechanic & electronic Security System, Energy management system, Environment monitoring system, Home automation and health care application. However, feature of wireless networking of sensor network is vulnerable to eavesdropping and falsification about message. Presently, PKC(public key cryptography) technique using ECC(elliptic curve cryptography) is used to build up the secure networking over sensor network. ECC is more suitable to sensor having restricted performance than RSA, because it offers equal strength using small size of key. But, for high computation cost, ECC needs to enhance the performance to implement over sensor. In this paper, we propose the optimizing technique for multiplication, core operation in ECC, to accelerate the speed of ECC.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.7 no.5
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• pp.1-12
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• 2008

In this paper, we described about core technologies required for the seamless service implementation and the communication system structure conceiving required for call & response services in order that the real-time traffic information service is consecutively provided to the vehicle moving at high speed. The SMART highway service is the information communication environment build-up concept which the real-time C&R service is comprised of the vehicle moving with 160km/h above. It was possible in case of being the low speed car in the DSRC system structure. However, there is a limit in the high speed environment as the DSRC system like a convention. In this paper, we proposed the structure of fitting for the SMART highway environment using the hand-over technique compositing the base station and several repeaters of DSRC system.

• Journal of the Korea Society of Computer and Information
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• v.26 no.8
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• pp.229-237
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• 2021

This paper aims to study the using motivation and influencing factors of Chinese users' participation in live stream shopping through theoretical and empirical analysis, so as to evaluate the change in users' needs and improve marketing strategies. In doing so, I conducted a questionnaire survey for Chinese live stream shopping users and collected the required data. For empirical analysis, I used SPSS and AMOS software to carry out descriptive analysis, reliability and validity analysis and structural equation model analysis (SEM) to test the hypothesis. The results of the analysis showed that core competency and brand personality of the short video industry have a significant impact on user and customer perceived value, thus influencing users' using motivation. That is, users do not blindly follow live stream shopping but make their active choice. Therefore, it is suggested that live stream shopping platform should strengthen the e-commerce attributes and eradicate "the sense of false satisfaction", in order to achieve the effective communication of information. On the other hand, to stimulate the purchase motivation of users, the brand should build up its personality, and enhance user and customer perceived value in cyber marketing.

• Research in Community and Public Health Nursing
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• v.32 no.4
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• pp.518-528
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• 2021

Purpose: This study was conducted to explore the healthcare experience of residents participating in the Community-Based Hypertension and Diabetes Registry Program. Methods: This study used qualitative content analysis. Data were collected from in depth interviews of fifteen participants, who either participated in the program hosted by the Training Center for Hypertension and Diabetes for more than two years or participated in an intensive one-on-one education program. Results: The results showed that the core theme in healthcare of participants was 'Proactive healthcare with attention and systematic guidance of experts'. The positive reinforcement of staffs and the improvement of self-efficacy through effective close management were found to be positive influencing factors of participation. The theme consisted of the following categories: 'Participation in the program with positive expectations on healthcare', 'Interest in body and health', 'Vitality in life', 'Confidence in dealing with disease', 'Thankfulness for close care and attention', and 'Desire for continuous care'. Conclusion: When establishing policies on managing chronic diseases, a strategy that reflects the results of the study is required. It is necessary to build up emotional relationship among stakeholders, and expand opportunities for close healthcare such as one-on-one customized training, and mutual cooperation with various organizations in the local community.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.5D
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• pp.579-585
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• 2009

In spite of the proven effectiveness of ramp metering system, it has not been successfully implemented in Korean setting. The purpose of this paper is to select target locations to introduce ramp metering into the Korean expressway system. For this, domestic standards to introduce ramp metering have been presented after reviewing those of the US. The major criteria are level of service (LOS), the existence of detour route, space for queue build-up and opened ramp. 15 different locations were selected and AHP has been used to make priority among them. Intuitively, the result of priority was in accordance with the congestion and traffic volume. The core results identified in this paper is expected to be used in different cities and expressway networks elsewhere.

• Asia Marketing Journal
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• v.16 no.1
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• pp.215-228
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• 2014

The automotive industry plays a significant role in the global economy. One of the reasons is that this industry compasses every aspects of the value chain - from raw materials to design and development, manufacturing, sales and services, and even disposal. Thus, the industry needs significant upfront capital investment and requires years of R&D and market development. As a result, this industry is dominated by a handful of global players and it is not easy for a new entrant to enter this industry. Furthermore, success is even more difficult to achieve. How did Hyundai Motor make it in this tough marketplace? Can it continue against all odds? The CAGR for last 5 years is 12% and it stands at 6th in the world. Compared to other global brands, Hyundai has geographically well-balanced sales portfolio. The quality improvement is outstanding. The brand performance follows these quality and sales improvements. Yet, the global competition is ever intensifying. Now, it is the time to step up once more. The next strategic goal needs fundamental shift toward brand and marketing-focus. In constructing global marketing strategy, Hyundai Motor's vision is "Lifetime partner in mobility and beyond" and its goal is global top 3 brand by year 2015 through modern premium brand image and selling 5 million vehicles. The target brand positioning of Hyundai Motor is the leading position in premium dimension and stylish/modern dimension. The global brand strategy framework is based on the brand direction of "Modern Premium" and is designed to deliver core brand identity (i.e., Simple, Creative, Caring) to customers. In order to manage brand performance, Hyundai's marketing platformalso includes marketing performance management, brand performance management, and market driven organization. From this diagnosis, Hyundai Motor is well posed to build a strong brand. Nevertheless, there are still challenges ahead from consumer, technology, competitor, and macro-environment perspectives. To overcome these threats, the bases of competition for all successful automotive brands are various differentiation factors, including technology, performance, value proposition, or heritage. Hyundai Motor is well prepared so far. However, it is not tested against time yet whether Hyundai can overcome these unforeseeable major threats. Hyundai is trying to find the solution from a strong brand, while believing in "New Thinking. New Possibilities."

• (The)Study of the Eastern Classic
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• no.32
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• pp.189-213
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• 2008

When we say the core thought of the Analects of Confucius, we normally come up with 'Ren(仁)'. However, in the first phrase of Chapter One("學而") of the Analects, there is no mention about 'Humanity'. Then, why the editor of the Analects of Confucius had put the First Chapter at the opening of book? This paper aims to describe the fact that the First Chapter One of the Analects of Confucius implies the core thought of Kongzi(孔子). In the First Chapter One, the vocabularies, such as 'Pleasure'(說), 'Delight'(樂), and 'Confucian Gentlemen'(君子) are central to the phrasal structure. 'Pleasure'(說) is the phase to cultivate himself, or the phase to equip with a qualification in order 'to establish a righteous relation'. And 'Delight'(樂) is the stage to establish relationships with colleagues who share same value and ambition with himself. 'Confucian Gentlemen'(君子) is the stage to 'establish righteous relationships' with all people in the world, and it denotes an ideal human image presented by Kongzi(孔子). The core concepts of the First Chapter One are connected to the core thoughts of the Analects of Confucius, to wit, 'Ren'(仁), 'Shu'(恕), and 'Xiujizhiren'(修己治人). If 'Ren'(仁) and 'Shu'(恕) refer to specifically 'establishment of righteous relationship', then 'Pleasure'(說) is the stage to obtain qualification in order to 'establish righteous relationship', and 'Delight'(樂) is the stage to 'establish relationships' with brothers and colleagues, and 'Confucian Gentlemen'(君子) means a person who can build up 'righteous relationships' with all the people of the world. Regarding the Confucianism in 'Character building and guiding other souls' Confucius presents three phases, viz. 'Cultivation of himself in reverential carefulness'(修己以敬) ${\rightarrow}$ 'Cultivation of himself so as to give rest to others'(修己以安人) ${\rightarrow}$ 'Cultivation of himself so as to give rest to all the people'(修己以安百姓), and the se get through 'Pleasure'(說) ${\rightarrow}$ 'Delight'(樂) ${\rightarrow}$ 'Confucian Gentlemen'(君子) in the First Chapter One of the Analects of Kongzi(孔子). The human image, named 'Confucian Gentlemen'(君子) presented in the Chapter One is equated with the human who practices 'morality'(修養) that attained by means of 'cultivation'(實踐) through 'establishment of relationship'.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.9
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• pp.3538-3547
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• 2010

As Telepresence has emerged as a key collaboration tool for supporting trade business, the need for using Telepresence has also been increased in the foreign countries. In this context, we has studied an exploratory research to analyze how staffs-in-charges of trade support authority, exhibition & convention center and SME(Small and Medium-Size Enterprise) perceive the general concept of Telepresence, the necessity, feasibility, business values and expected problems of Telepresence's adoption and use. The finding indicated that there seemed to be significant differences between the necessity and the feasibility of Telepresence adoption and use. In addition, they were anticipating some problems when building Telepresence. Major reasons are incompatibility between Telepresence systems, lack of usability and difficulties of fixing a rental fee. The results of the perception analysis also showed that Telepresence would positively influence on creating business value. The analysis revealed that the core factors of the successful adoption and use of Telepresence are stable network environment, awareness and accessability, and education and promotion. Through the perception analysis, I came up with the core factors to implement Telepresence successfully and use it properly. And the fact that I presented the guideline to build Telepresence for SME makes this study meaningful.