• Korean System Dynamics Review
• /
• v.8 no.1
• /
• pp.151-171
• /
• 2007

Without exception, diverse LULU(Locally Unwanted Land Use) facilities have been under the location conflict, especially between the public government units and local residents. In spite of repeated trials-and-errors, literally, the location conflict has shown no sign of improvement over time in Korea. As practical means to tackle these issues, this study focuses on divulging explicit and implicit relationships among key factors derived from the location conflict on the LULU facilities. Here, major research variables cover residents' agreement, residents' perception, compensation expectation, and public opinion. As the location conflict on the LULU facilities could be strengthened or resolved by the dynamic feedback system, it applies basic tools geared toward causal loop diagramming. After repeated experiments, the study highlights the fact that the residents' perception, compensation expectation, and public opinion, individually and collectively, exert significant impact on the residents' agreement ratio.

• The Journal of Information Systems
• /
• v.11 no.1
• /
• pp.105-127
• /
• 2002

The objective of this study is to analyze factors affecting usage of b2b e-marketplace. For this purpose, we suggest a research framework where the factors are e-business infrastructure, expectation of competitive advantages and perceived barriers with current and future usages as result variables. For empirical test, 219 companies are surveyed and 177 valid ones among them are analyzed. In result, e-business infrastructure and competitive advantage affect to both current and future usage positively and perceived barriers affect to future usage negatively. The results shows the following two: First, many companies expect improvement of competitive advantages such as bargaining power and efficiency by usage of e-marketplace. Second, for more aggressive usage of e-marketplace, it is important not only to build e-business infrastructure but also to resolve perceived barriers.

• Journal of Korean Society for Quality Management
• /
• v.22 no.2
• /
• pp.98-108
• /
• 1994

Under the competitive environment of shipping industry, the improvement of the quality of shipping service could be one of the most important factors to be considered in the recent shipping industry. However, there has been little study on the clear concept of the service quality in the shipping so far. The subject of this study is to define the concept of the service quality in the shipping by way of making investigation into the related precedent literatures studied. The quality of service is recognized in general as a degree of gap between the customer's expectation and the perception. Therefore the service quality of shipping could be measured by evaluating the gaps between shipper's expectation and performance of shipping service. If the determinants of the service quality in the shipping are proved, and the discrepancies of expectations and perception between the shipping company and the shipper could be clarified, such a result would be an useful help to establish marketing strategy.

• ETRI Journal
• /
• v.41 no.3
• /
• pp.298-307
• /
• 2019

This paper investigates the use of the inverse-free sparse Bayesian learning (SBL) approach for peak-to-average power ratio (PAPR) reduction in orthogonal frequency-division multiplexing (OFDM)-based multiuser massive multiple-input multiple-output (MIMO) systems. The Bayesian inference method employs a truncated Gaussian mixture prior for the sought-after low-PAPR signal. To learn the prior signal, associated hyperparameters and underlying statistical parameters, we use the variational expectation-maximization (EM) iterative algorithm. The matrix inversion involved in the expectation step (E-step) is averted by invoking a relaxed evidence lower bound (relaxed-ELBO). The resulting inverse-free SBL algorithm has a much lower complexity than the standard SBL algorithm. Numerical experiments confirm the substantial improvement over existing methods in terms of PAPR reduction for different MIMO configurations.

• Journal of Nutrition and Health
• /
• v.40 no.3
• /
• pp.281-287
• /
• 2007

The purpose of this study was to measure patients satisfaction and expectation with hospital foodservices, and thereby identify areas for improvement and provide basic data for the introduction of total quality management with hospital foodservices. This survey was carried out on 383 hospitalized patients of 7 hospitals in Deagu, Busan, Changwon with 350 beds to determine the quality satisfaction with foodservices. The subjects were 50.5% male and 49.5% female. 62.6% of the subjects were over 40 age, 31.4% were only educated to middle school or below, 28.3% were hospitalized for 7-14 days. The mean score for taste of diet was 2.79, temperature 3.23, appearances 2.96. Most subjects agreed with following foodservice characteristics that meals of movement (4.03), dress of employees (3.84), kindness of employees and meals arrived exactly the same time every day (3.47) and cleanliness of foods (3.34) and dishes (3.33). The unsatisfied quality attributies were information provide (2.82), variety of the meals (2.91), mixing of meals (2.95), the opportunity to meet with a dietitian (2.97) and prompt dealings with meal complaints (3.01). Most subjects expectation that the decrease the multiple of menus, increase provide of fruits in hospital meals and selective menus in hospital foodservices operations. In conclusion, it would seem to be desirable that hospital foodservices departments introduce selective menus, quality assurance, and increase the meal rounding of dietitians in the patient foodservice.

• Journal of Korea Society of Industrial Information Systems
• /
• v.13 no.2
• /
• pp.35-46
• /
• 2008

This research developed a strategy for mobile banking services based on the important factors deduced from quality assessment of mobile banking service that is experiencing rapid growth of user. SERVQUAL model and importance-performance tool were used. First, SERVQUAL model uses the important factors of mobile banking service selected from literature reviews. As a result, four dimensions that affect user satisfaction are found; assurance, customer orientation, tangibility, and reliability. Second, importance-performance analysis is to develop the strategy using the four factors. The final results revealed that assurance dimension had the strongest influence on user satisfaction. Assurance dimension of high expectation and yet low real performance needs immediate improvement. Customer orientation dimension of low expectation and performance should be reconsidered definition of satisfaction. On the other hand, tangibility dimension of higher performance than expectation is simply to maintain current level. Reliability dimension of high expectation and performance is recommended consistent management.

• Korean journal of food and cookery science
• /
• v.16 no.5
• /
• pp.437-444
• /
• 2000

The purpose of this study were to identify customer expectation, perception and satisfaction of foodservice quality to analyze the influencing factors on foodservice quality and finally to provide basic information for the improvement of foodservice quality. Among expectation scores of food quality attributes, ‘hygiene of food(3.27)’received the highest score. In expectation scores of service quality attributes,‘hygiene of tableware(3.40)’was the most important. Satisfaction of ‘appropriate 1 portion size(-0.11)’was the highest scored, while‘dealing with complaints on meals(-0.70)’was the most dissatisfied one. Satisfaction was highly correlated with‘providing preferred menu(r = -0.62)’of food quality expectation. It was highly correlated with‘dealing with complaints on meals(r = -0.61)’of service quality expectation. Expectation and perception of foodservice as 2.25 and 2.90 out of 5, respectively, which suggests that foodservice needs to be improved. The attributes identified in Quadrant A, which was labelled‘focus here’and supposed to indicate the areas of high expectation but in low perception, was hygiene of carts holding used trays. The results of expectation and perception analysis indicated the areas that the attention of management should be given to improve quality of foodservice. The stepwize regression analysis suggested that foodservice expectation and perception explaints around 56.7% of the variation in general customer satisfaction.

• KIEAE Journal
• /
• v.11 no.5
• /
• pp.43-53
• /
• 2011

The Landscape Act was enacted in 2007 introducing a new procedure of the Local Landscape Agreement and the Local Landscape Improvement Projects. The act has granted local governments a legal basis to support residents participation activities in order to create, improve, and maintain the townscape quality of their neighborhood environments. The degree of utilization of this particular process, however, is far below the expectation. Partly, it is due to the lack of field experience and concrete guidelines for preparation and implementation in actual landscape planning process. This study aims to seek for detailed solution to lead the residents participation for local landscape improvement in Korea through consideration for institutional strategies and cases about the local landscape planning and management in Japan. Local landscape improvement projects in Japan are progressing successfully in concurrence with a variety of local participants such as residents participation, administrative supporting and supporting of local company. And it will be possible to support systematically with systematization of participants, such as NPO and a council.

• Journal of The Korean Society of Integrative Medicine
• /
• v.2 no.2
• /
• pp.1-12
• /
• 2014

Purpose : The purpose of this study was to investigate the effect that the academic achievement of the students about the evidence based learning investigates the learning utility value about and the request. Method : The agreement of college students explaining the purpose of research for 12 weeks against 17 students and investigate through a questionnaire. The level of academic achievement according to the sex and claim showed a characteristic with a percentage. An utility investigate the descriptive epidemiologic characteristic about the class of the evidence based learning. Result : The most of college students the level of academic achievement and requests the expected grade of the students about the evidence based learning wanted the 'high' grade of 9 persons, 'middle' grade of 8 persons in the part and the expectation for the class taken so much was high(p<.05). There was the significant different in the utility aspect in the need of the evidence based learning, homework solution, learning synergy effect improvement, and reference search ability improvement(p<.05). Conclusion : These finding revealed that the evidence based learning the satisfaction with class raises the improvement and utility value, and provided the need and the has to develop the educational model which the college students contentment raises an improvement after this opportunity for the new recognition.

• Journal of Korean Society for Quality Management
• /
• v.23 no.2
• /
• pp.122-143
• /
• 1995

The purpose of this paper is to analysis of some factors of CIM systems which influence on the quality in our business. Through the influential factors from analysing preliminary inquiry, we surveyed the effects of CIM systems. In conclusion, we have proved that there are many differences in view of quality between the business adopted this system and the other not adopted this.