• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.31 no.12B
• /
• pp.1017-1027
• /
• 2006

Recently, Internet service providers are offering triple play service which combines voice and video services with the existing high speed Internet service under the common network infrastructure of IP protocol, so that they can create more benefit from operating a single network architecture. In line with this movement in the convergence of network and services, in this work we propose a bandwidth dimensioning method for the subscriber network of the IP network at flow level. To that purpose, let us propose a series of bandwidth dimensioning methods: bandwidth for best effort service only, bandwidth dimensioning for premium services, and bandwidth dimensioning schemes for the premium Internet services as well as the best effort service which comprise the TPS. Our link dimensioning method is based on the flow level that incorporates the flow blocking probability as a measure of grade of services(GoS), and investigates the characteristics of the proposed methods via extensive numerical experiments. After that, let us carry out a simulation experiment concerning the delay and loss performance of the packet scheduling for the premium services (QoS) using the bandwidth designed by our proposed method, via which the packet level quality of service (QoS) for the proposed link dimensioning method can be observed.

• Journal of KIISE:Computing Practices and Letters
• /
• v.5 no.4
• /
• pp.507-515
• /
• 1999

통신 기술의 발달로 인하여 고정망 뿐만 아니라 이동망에서도 지능망 서비스를 제공하는 것이 중요하게 생각되고 이에 대한 많은 연구가 진행중이다. 이 논문은 이동망에서의 지능망 서비스를 효율적으로 제공하기 위한 네트워크 모델을 제안한다. 제안하는 모델에서는 MSC/SSP와 SCP/HLR 사이의 두 가지 신호 구조를 고려한다. 이러한 모델에서 지능망 서비스를 제공하는 것이 효율적임을 보이기 위하여 먼저 VLR을 사용한 지능망 서비스의 제공 방안을 제시한 후, 두 가지 모델에서의 지능망 서비스 관리에 관한 성능을 분석해 보고자 한다. 이러한 방법은 SCP에 저장된 지능망 서비스 프로파일들을 VLR로 다운로드 하여 사용자로부터의 지능망 서비스 요청시에 SCP로의 연결을 줄이는 것이다. 제시한 방법은 SCP/HLR의 부하를 감소시켜 지능망 서비스 관리면에서 IMT-2000 보다 훨씬 더 나은 성능을 보인다.Abstract As the communication technology has been developed, it is necessary to provide the IN service in the mobile network as well as the fixed network and many researches are in progress. In this paper we propose the network model to efficiently provide IN service in the mobile network. There are two signaling architectures between MSC/SSP and SCP/HLR. To show that it is efficient to provide the IN service in the proposed model, we propose IN service provision method using VLR and analyze the performance of IN service management in two architectures. These methods are to download the IN service profiles that are saved in SCP to VLR and to decrease the connection to SCP when the user requests the IN service. The proposed methods show that the load of SCP/HLR is decreased and our method is better than IMT-2000 in the aspect of IN service management.

• Journal of Korean Society for Quality Management
• /
• v.47 no.3
• /
• pp.615-630
• /
• 2019

Purpose: Based on the theory of "Stimulus-Organism-Response" (S-O-R), this thesis takes customer forgiveness as a medium variable to explore the impact of merchant service remedy on customer behavior intention in the context of online shopping service failure. This thesis divides the merchant service remedy into two dimensions: spiritual recovery and material recovery, and reveals the influence difference of different merchant service remedy methods on customer behavior intention and the mediating role of customer forgiveness. Methods : 325 questionnaires were distributed and 307 valid questionnaires were collected for data analysis. The relationship between potential variables is proposed by using Structural Equations Modeling. Results : The two dimensions of service recovery have significant positive impact on customer forgiveness, and physical recovery has greater impact on customer forgiveness. In the influence of physical recovery on customer behavior intention, customer forgiveness is a partial mediating effect. However, in the influence of spiritual recovery on customer behavior intention, customer forgiveness is a complete mediating effect. Conclusion : In case of service faults, merchants should take the initiative to provide appropriate physical recovery and provide spiritual recovery sincerely and patiently. Only in this way can they regain good impression in the hearts of consumers and promote them to improve the quality of service recovery, so as to increase their willingness to repurchase Intention and positive word of mouth.

• Journal of Service Research and Studies
• /
• v.11 no.2
• /
• pp.95-105
• /
• 2021

The purpose of this study is to improve the accuracy of service satisfaction by utilizing KSC (Kano, Score Model, Concept Position) analysis methods in order to present various fitness center service models for healthy new silver generation centered on P fitness center which runs six branches in Busan. Double Diamond-based methods led to a case study focused on the P fitness center's Yeon-san branch which well leading in a wide variety of leisure infrastructures for the senior citizens. Throughout this study, based on the insights extracted from the customers were culminating in nine service design models from the perspective of administrators and trainers. The final derived nine models have been evaluated by Kano's satisfaction evaluation, Concept score, and Concept position evaluation. All of the nine models results indicated as valid except for models 3 and 6. Finally, an implementation roadmap was proposed by dividing it into investment cost and effectiveness.

• Korean Journal of Occupational Health Nursing
• /
• v.20 no.3
• /
• pp.337-345
• /
• 2011

Purpose: This study was conducted to evaluate the relationships among the service education satisfaction, service involvement, and customer orientation of hospital employees after yearly-planned MOT service education. Methods: The data collection was done through the questionnaire survey in a university hospital located in D city from March 15 to 31, 2010. The statistical analysis was done by SPSS/WIN 18.0 program. Results: The enrolled employees were two hundred and seventy six. Among the characteristics of employees, adequate work load, good payment, reasonable promotion system, suitability of work aptitude and good relationships with staff improved the service education satisfaction, customer orientation, and service involvement of hospital employees. For the customer orientation, old age and lower educational background were positive factors. The correlations among the service education satisfaction, customer orientation, and service involvement of hospital employees were significant. The factors that affect customer orientation and service involvement were found to be age, suitability of work aptitude and service education satisfaction. Conclusion: In conclusion, customer orientation and service involvement were related with the satisfaction of employees for working condition and service education. In terms of good medical service quality, plans for maintaining adequate working environment and systematic service education should be established.

• Journal of Korean Society for Quality Management
• /
• v.44 no.1
• /
• pp.121-138
• /
• 2016

Purpose: Financial institute employees have various education programs for enhancing customer satisfaction. The purpose of this study is to explore critical factors that affect the service commitment in the financial institution and to propose the implication for employee's service involvement. Methods: This study is intended to identify how service quality of education, servicescape, and learning motivation affect the service commitment. The research model proposed in this study is tested via a survey of 322 employees for financial institution employees. Results: This study shows that tangibles, reliability, assurance and ambient condition, physical structure, symbolic artifacts and internal motivation, extrinsic motivation significantly influence education satisfaction. Tangibles, reliability and ambient condition, physical structure, symbolic artifacts and internal motivation significantly influence affective service orientation and that tangibles, reliability, assurance and extrinsic motivation significantly influence altruistic service orientation. It also verifies that education satisfaction affective service orientation, and altruistic service orientation positively affect service commitment. Conclusion: This study suggests critical factors to promote service commitment in the financial institute. It has focused on not only the service quality of education program, but also servicescape and learning motivation as the meaningful factors for increasing the employee's service involvement.

• The Korean Journal of Food And Nutrition
• /
• v.29 no.5
• /
• pp.698-705
• /
• 2016

This study aimed to evaluate the quality characteristics of Gastrodia elata Blume fermented by lactic acid bacteria after saccharifying by 3 methods including enzyme, malt, and rice-nuruk. The lactic acid bacteria (LAB), Pediococcus inopinatus BK-3, isolated from kimchi could reduce the unpleasant taste and odor of Gastrodia elata Blume. The total acidity value of Gastrodia elata fermented by LAB on the malt and rice-nuruk extract solution for 3 days was 2.23% and 2.33%, respectively. After saccharification by malt and rice-nuruk extract solution for 3 days, the viable cell number of fermented Gastrodia elata was 9.14 log cfu/mL and 9.27 log cfu/mL, respectively. The total acidity values were increased above 3.35% by malt and rice-nuruk extract solution for 8 days. Thus, the viable cell number was the highest by malt and rice-nuruk extract solution fermentation for 3 days. The amino acid content of Gastrodia elata fermented by LAB after saccharification by malt extract solution was higher than that of other saccharifying methods. The free sugar content and p-hydroxybenzyl derivatives induced by the enzyme method were higher than those of other saccharifying methods. The overall acceptability was the highest at 4.2 point in Gastrodia elata fermented by malt extract solution.

• Journal of the Korean association of regional geographers
• /
• v.17 no.4
• /
• pp.459-476
• /
• 2011

This research aims to figure out the impact of different reflective thinking methods on pre-service geography teachers' teaching knowledge. Four pre-service teachers in the same level were selected through the first simulated instruction, Then, different reflective methods were given them to carry out the reflection. Afterwards, they carried out their second simulated instruction. The change of average score of pre-service teachers was analyzed through the peer reviews and Paired samples T-test. The results are as follows. First, when the first peer review score were compared with second peer review, average score of all pre-service teachers improved. But, pre-service teachers who got cooperative reflection with a specialist had the widest variation in the increase level of average score comparing to those without reflection or reflective journal writing. Second, reflective journal writing through self-reflection led to their reflective thinking, but it did not induce them to reflective practice. Finally, pre-service teacher who got cooperative reflection with experienced teachers got the significant improvement in PCK through the T-test. In particular, it had significant statistical value in instruction section and understanding of students section. It demonstrates that the contextual section could be improved by self-reflection or repetitive class practices, while instruction section and understanding of students section needed consulting by assistants.

• Journal of Korean Academy of Nursing Administration
• /
• v.11 no.4
• /
• pp.425-437
• /
• 2005

Purpose: The purposes of this study were to compare the nursing service quality, gap, overall nursing service satisfaction, overall medical service satisfaction and intent to revisit the hospital perceived by consumers and providers. Methods: Data were collected with self-administered questionnaire and analyzed using frequency, %, mean, standard deviation, t-test, Pearson correlation coefficient, and multiple regression analysis. Result: Nursing service gap perceived by consumers was smaller than that of providers. Consumer's overall satisfaction with nursing and medical service was higher than that of nurses. In consumers, nursing service satisfaction alone accounted for 62.9% of the variance in their intent to revisit the hospital, while explained 3% of the variance in providers. Conclusion: There are definitely perception gap between consumers and providers. Therefore nursing and hospital managers must recognize it, and carry out the internal marketing strategies for nurses.

• Proceedings of the Technology Innovation Conference
• /
• 1999.06a
• /
• pp.203-225
• /
• 1999

In this paper, I tried to analyze the relationship between the market structure of teleommunicatin industry and market performance using Economides and Lehr's results considering composite goods methods. And I took three policy scenarios into account. First, government tires to implement the policy which divides the integrated monopoly into network operator and service provider, then invite competition to service part. Second, government tries to implement the policy which invite the competition to service part only. Third, government tries to implement the policy which invite the competition to integrated duopoly. I gained the best result in the third scenario. So we can conclude that Parallel vertical integration is the best market structure. I also specially checked the relationship between the market structure and service quality. I gained the best service quality in the third scenario. So we can conclude that Parallel Vertical Integration is also the best market structure with regard to the service quality.