• Hwankyungkyoyuk
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• v.13 no.1
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• pp.23-36
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• 2000

As the environmental industry grew bigger and bigger, the corcern about environmental condition increased and the demand of environmental expert tended to be much more increased. A lot of universities therefore established environment-related departments on campuses and ended up with producing numerous students every single year. However, some problems such as followings were in this study. First, the industry cannot adopt all the students directly from universities due to their low capabilities in environment affairs. Second, the universities yield much more students than the industry can actually adopt. In order to yield the appropriate students meeting the expectation of the industry, it is necessary to permit no more new department established on campus and to adopt new environmental field such as environmental management, eco-auditing and also 3+1 lecture system focused on real affairs.

• Asia pacific journal of information systems
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• v.32 no.3
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• pp.514-536
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• 2022

Online reviews offer valuable information to businesses by reflecting consumer experiences about their products and services. Two crucial aspects of online reviews are the topics consumers choose to address, and the sentiments expressed in their reviews. Building upon previous literature that shows online reviews are context-dependent, we employ the Expectation-Confirmation Theory (ECT) to examine the impact of topic distribution on review sentiment in South Korea and the U.S. during pre- and post-pandemic periods. After applying a topic modeling to Airbnb app review data, we measure the contribution of each topic on review sentiment using SHAP values. Our results indicate variations in topic distribution trends between 2018 and 2021. In addition, the order and magnitude of topics' impact on review sentiment change between pre- and post-pandemic periods for both countries. This study can help businesses understand how topics and sentiments associated with their products and services changed after the pandemic and thus identify areas of improvement.

• Journal of Korean Foot and Ankle Society
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• v.17 no.3
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• pp.225-233
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• 2013

Purpose: This study was performed to evaluate the impact of the lesser toe operation on the overall clinical outcomes, and to analyze the clinical results of concomitant surgery for hallux valgus and lesser toe deformities. Materials and Methods: Forty-six cases underwent surgery for hallux valgus with concomitant lesser toe deformities were followed up for at least 1 year. Lesser toe deformities consisted of 9 crossover toes, 10 claw toes, 12 hammer toes and 15 bunionettes. Clinical evaluation was performed according to AOFAS (American Orthopaedic Foot and Ankle Society) score, patient's satisfaction score, and pain VAS (visual analogue scale) score. Hallux valgus angle (HVA), intermetatarsal angle (IMA), and period to union were measured. Preoperative expectation about lesser toe deformities, postoperative satisfaction, complication rate, hospitalization period, medical expenses, and frequency of outpatient follow-up were analyzed. Results: AOFAS score, VAS score, HAV and IMA had improved significantly. On preoperative expectation of patients, correction of lesser toe deformities was ranked third, following the improvement of big toe(bunion) pain and the correction of hallux valgus. Patient's satisfaction score was average 92.8 points, and the importance of lesser toe operation was 30.2%. When compared to hallux valgus operation only, there were average 2.5 days of additional hospitalization, 2.4 times of additional outpatient follow-up, 386000 won of additional medical expenses. Conclusion: Combined operation for hallux valgus and concomitant lesser toe deformities showed good clinical results. When compared to hallux valgus operation only, there were longer hospitalization, more frequent follow-up, more medical expenses, more complications. However, lesser toe deformity correction in patients underwent hallux valgus operation is considerable, because of high preoperative expectation and postoperative satisfaction.

• Journal of Internet Computing and Services
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• v.25 no.1
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• pp.79-90
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• 2024

This study focused on user trust in ChatGPT, a generative AI technology, and explored the factors that affect usage status and intention to continue using, and whether the influence of trust varies depending on the purpose. For this purpose, the survey was conducted targeting people in their 20s and 30s who use ChatGPT the most. The statistical analysis deploying IBM SPSS 27 and SmartPLS 4.0. A structural equation model was formulated on the foundation of Bhattacherjee's Expectation-Confirmation Model (ECM), employing path analysis and Multi-Group Analysis (MGA) for hypothesis validation. The main findings are as follows: Firstly, ChatGPT is mainly used for specific needs or objectives rather than as a daily tool. The majority of users are cognizant of its hallucination effects; however, this did not hinder its use. Secondly, the hypothesis testing indicated that independent variables such as expectation- confirmation, perceived usefulness, and user satisfaction all exert a positive influence on the dependent variable, the intention for continuance intention. Thirdly, the influence of trust varied depending on the user's purpose in utilizing ChatGPT. trust was significant when ChatGPT is used for information retrieval but not for creative purposes. This study will be used to solve reliability problems in the process of introducing generative AI in society and companies in the future and to establish policies and derive improvement measures for successful employment.

• Journal of Korean Society of Rural Planning
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• v.24 no.3
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• pp.33-42
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• 2018

The aim of our study was to provide a basic data for the development of a small greenhouse model suitable for urban farmers. The study analyzed installation inclination, positive and negative reasons for installation, location of installation, preferred crops in small greenhouses, plans for use of products, and expected effects by using small greenhouse. Positive opinion on small greenhouse installation was 80.4% of the survey respondents. The most positive reason for the installation of small greenhouses was fresh and safe food supply, and the negative reason was maintenance difficulties. The results obtained in our survey indicated that small greenhouses were more likely to be installed near the house, and urban farmers tended to grow organic leafy vegetables in soil. The expected benefits of small greenhouse operation were largely divided into 'benefit for the improvement of the quality of life' and 'benefit for economic profits', and expectation for the improvement of the quality of life was higher than economic benefit. As a result of the Likert 5-point scale analysis, 'benefit for the improvement of the quality of life' by using a small greenhouse was graded as high as 4.17~4.60. On the other hand, the 'benefit to economic profits' was rated as low as 3.51~4.14.

• Journal of Distribution Science
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• v.9 no.3
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• pp.65-71
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• 2011

There is a growing concerns for startups and management issues in the small business sector. In the Korean unique condition, female-owned small business seemed to play a crucial role in stimulating domestic demands and replacements for workforce reductions in the time of reduced birth rates and export-driven economy. Despite importance of female-owned small businesses, domestic statistics about female small businesses are not well recognized and defined. To design the current entrepreneurship training programs for female entrepreneurs more female-friendly, we need to improve overall environments surrounding training systems. We can classify the environmental improvement for women-friendly entrepreneurship training into three types as follows: First, it is needed to conduct regular surveys on difficulties female entrepreneurs may have. To develop a program for women-friendly entrepreneurship training, extensive and thorough survey is required for entrepreneurship training goals. To design women-friendly entrepreneurship training for women entrepreneurs henceforth, preliminary surveys should be carried out to detect problems within the course of the program and women's expectation regarding entrepreneurship training. Second environmental improvement is to overcome the lack of information on entrepreneurship training for women. Difficulties that women entrepreneurs experience are different from their counterparts, male. Last is about overcoming the lack of follow-up management after opening a business. To surmount the issue, we need to organize a management improvement consulting systems focused on female entrepreneurs. Establishing networks connecting female businesses should be the most urgent measure. With this regard, if follow-up services for female entrepreneurs are provided for at least three years from the time a business is opened, it may produce even more desirable results.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.2D
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• pp.217-225
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• 2008

Bus stop is necessary to improve user-focused environment to offer convenient service because of the large number of passengers. This study is to analyze user's evaluation and establishment model of the service levels at bus stop using GAP analysis, IPA and Structural equation model and suggests improvement direction of bus stop. In the GAP analysis, on thirty-one service items of bus stop, the difference appeared highly from the items such as obstacle's facility and the information related to the using bus. In the current IPA service bus operation information, cadence facility and obstacle support facility need to be improved. And in service expectation bus operation information and th exchange facility, the obstacle support facility need to be improved continuously. The evaluation model of bus stop service due to a structure equation's was fitted well by structure equation. In overall satisfaction on bus stop, the waiting satisfaction is more affect the satisfaction of bus use facility. Satisfaction in bus use facility, the related information of bus operation, cadence facility, bus operation information and trans facility, obstacle support facility is more affect compare to other items. The lower overall satisfaction in bus stop is the higher the expectation of overall satisfaction is. Therefore, the information of bus operation and the support facility for the handicapped needs an active improvement plan than ever.

• Journal of Internet Computing and Services
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• v.16 no.4
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• pp.121-130
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• 2015

Technology based start-up is actively encouraged for job creation and economic performance in Korea. The Korean government has implemented a variety of policy for regulatory improvement to vitalize technology based start-up. In order to maximize the effectiveness of the policy for regulatory improvement should be actively reflect the opinions of policy beneficiaries. In this study, The importance of "The progress plan for regulation improvement about vitalization of start-up(25 contents)" published by the government was analyzed using AHP method. The object of study is the beneficiary of the policy(CEO of ICT sector). Analysis showed that the 25 contents were classified into four(1 - expectation of effect, 2 - urgency of system enforcement, 3 - complement of deficiencies, 4 - after careful consideration). This study has a academic significance to quantitative analysis about importance of policy for regulatory improvement. Also, It can be utilized when policy making and practice about technology based start-up.

• Journal of Korean Academy of Nursing
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• v.34 no.7
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• pp.1243-1254
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• 2004

Purpose: This study was performed to give direction to quality improvement strategies of nursing services by comparing the differences in quality perceptions and satisfaction for nursing services between patients and nurses in small-medium sized general hospitals with 200 beds. Method: The subjects, who were 150 inpatients and 162 nurses of 4 general hospitals in a community, answered a self-report questionnaire with a SERVQUAL scale. Result: There were differences between patients' and nurses' expectations and perceptions of nursing service and satisfaction. In the service expectation, the highest factor was 'the responsiveness', and in the perceived performance, the highest was the 'assurance'. In addition, overall patients' perceptions on nursing services showed higher than nurses'. There were positive correlations among the expectations and perceptions on nursing service, and satisfaction. The correlation between perception and satisfaction was higher than the correlation between expectations and satisfaction. Conclusion: To improve the nursing service quality at small-medium hospitals, strengthening the 'assurance' factor and improving the nursing service support system is needed. Also, this study on nurses' perceived nursing service at small-medium sized hospitals should be duplicated.

• IEIE Transactions on Smart Processing and Computing
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• v.2 no.6
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• pp.367-372
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• 2013

Cloud computing technology has been developing at an increasing expansion rate. Today most of firms are using this technology, making improving the quality of service one of the most important issues. To achieve this, the system must operate efficiently with less idle time and without deteriorating the customer satisfaction. This paper focuses on enhancing the efficiency of a conventional Genetic Algorithm (GA) for task scheduling in cloud computing using Fuzzy Logic (FL). This study collected a group of task schedules and assessed the quality of each task schedule with the user expectation. The work iterates the best scheduling order genetic operations to make the optimal task schedule. General GA takes considerable time to find the correct scheduling order when all the fitness function parameters are the same. GA is an intuitive approach for solving problems because it covers all possible aspects of the problem. When this approach is combined with fuzzy logic (FL), it behaves like a human brain as a problem solver from an existing database (Memory). The present scheme compares GA with and without FL. Using FL, the proposed system at a 100, 400 and 1000 sample size*5 gave 70%, 57% and 47% better improvement in the task time compared to GA.