• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.3
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• pp.125-131
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• 2012

This paper is on a stereo acoustic echo canceller with the blind signal separation. The convergence speed of the stereo acoustic echo canceller is deteriorated due to mixing two residual signals in the update signal of each echo canceller. To solve this problem, we are to use the blind signal separation(BSS) method separating the mixed signals. The blind signal separation method can extracts the source signals by means of the iterative computations with two input signals. We had verified performances of the proposed acoustic echo canceller for stereo through simulations. The results of simulations show that the acoustic echo canceller for stereo using this algorithm operates stably without divergence in the normal state. And, when the speech signals were inputted, this echo canceller achieved about 3dB higher ERLE in the case of using the BSS algorithm than the case of not using the BSS algorithm. But this echo canceller didn't get good performances in the case of inputting the white noises as stereo signals.

• The Journal of Asian Finance, Economics and Business
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• v.5 no.4
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• pp.135-147
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• 2018

There has been a recent increase in the interest towards founding companies and in line with the South Korean Government's policy on start-up support, discussions are rife about the effect of entrepreneurship on the management and performances of these companies. To enhance the competitiveness of SMEs, it is expedient to acquire and deploy consistent entrepreneurship, differentiate corporate resources, ensure the appropriate utilization of resources and the integration of such factors in response to the changing environment. This research examines relationships among entrepreneurship, three components of corporate capabilities, dynamic capability and technical performance based on resource-based view and the dynamic capability theory. The authors also investigate the moderating role of corporate life cycle. To test the hypothesis, we conducted a survey on 352 technologies -innovative SMEs located in South Korea via professional research institutes. The findings confirm the hypothesis that SMEs' entrepreneurship has a positive effect on three kinds of corporate capabilities (e.g., marketing, R&D, operations capability), and it had a positive effect on dynamic capability, whiles dynamic capability also had an influence on technical performances. The findings also confirmed the hypothesis that corporate life cycle moderates the relationship between dynamic capability and technical performances respectively. The research implications for both practitioners and academicians are discussed.

• Journal of Korean Society for Quality Management
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• v.41 no.4
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• pp.611-621
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• 2013

Purpose: The purpose of this study was to investigate if companies' efforts of quality management practices have positive impacts on the companies' performance as the first stage. In the second stage of this study, we tried to confirm if the degree of companies' making efforts on customization strategy and R&D strategy function as moderate variable on relationship between quality management practices and companies' performance. Methods: The collected data through survey were analysed using multiple regression for the first stage of the study and moderate regression for the second one of it. Results: The results of this study are as follows; quality management practices have positive effect on performances. Moreover, much effort on customization strategy has significant moderate effect on relationship between quality management practices and corporate performance. On the other hand, much effort of companies on R&D strategy has significant moderate effect on the relationship between the two as well. Conclusion: Manufacturing and services companies in Korea need to make effort of quality management practices in order to improve corporate performance. Moreover, if that efforts are combined with customization strategy and R&D strategy, they will expect synergy effect on performance improvement.

• Journal of the Korea Society of Computer and Information
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• v.20 no.2
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• pp.169-180
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• 2015

This study looked into these companies and organizations that were working with the knowledge management system in order to verify how practically such introduction of the knowledge management system would affect the organizational performances. The purpose of this study is to present the strategic guidelines should to consider the introduction of the knowledge management system operated by the organization to analyze how factors affect the performance of the introduction of knowledge management systems are organized in empirical. According to the results, the sub-variables of the management factors such as learning organization, evaluation and reward system, organizational trust and knowledge-sharing activity had all the significant effects on the organizational performance, and of the sub-variables of the information technology factors, the information technology-based structure presented statistically significant results which confirmed that the structure itself also had an influence on the organizational performance. However, the study learned that both the information technology maturity and the system structural excellence had nothing to do with the organizational performance.

• Journal of Industrial Convergence
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• v.22 no.3
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• pp.13-25
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• 2024

This study explores research topics related to dance performances published in Korea based on big data and examines research trends that change according to the trend of the times. The results derived from topic modeling analysis are as follows. (1) Six major topics were derived: a study on marketing strategies and development plans for dance performances, (2) a study on the re-watching factors of dance performance space and performance satisfaction, (3) a study on the popularity and contribution of dance performances in the stage environment, (4) a study on the current status of dance performances and the convergence of dance group operations, (5) a study on the definition of dance performances using various social media, and (6) a study on the direction and development of technology-applied dance performance contents. Accordingly, research trends and topics related to dance, including dance performances, social changes, key keywords of researchers' change interests were extracted, and keywords were compared and analyzed to present academic changes and countermeasures. Accordingly, the need for research to apply new technologies was emphasized as it diversified and fused.

• Journal of Digital Convergence
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• v.12 no.4
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• pp.227-235
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• 2014

Supply chain management for complex project requires continuous integration activities with the suppliers and subcontractors. This study proposes the firm performances, trust, relational norms, interfirm conflict and cooperation as major research variables, and collected the survey responses from the suppliers and subcontractors having experiences with complex projects. The statistical results indicate that the cooperation and conflict influence the firm performances, and that the inter-firm trust have some impact on the level of cooperation and conflict. It was also found that the inter-firm cooperation is influenced by relational norm. But on the contrary to our expectation, the relational norm has no significant impact on the inter-firm conflict. These findings may offer the significant implications leading to successful implementation of collaborative supply chain management in the context of project engineering area.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.11
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• pp.5993-5999
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• 2013

This study presents the information management item and the business process improvement plan managed all construction technique services of Design, Construction Supervision and Construction Management which is ordered and constracted by the public institution in the field of construction and business steps. In addition, it develped the Management System of Construction Technique Service Performances based on improved processes for the Public Agencies and Construction Service Director to register, review and approve the Service Performance Information. As a result, it would be help transparently managed Technical Engineer's work duplication status of Constuction Company, and checked online without having to submit Company performance data by providing objective and reliable information.

• Journal of Digital Convergence
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• v.18 no.3
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• pp.227-234
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• 2020

This study was carried out to provide basic data for the development of an educational program by assessing the its effects on the MDROs infection management performances of nurses at general hospitals. Data was obtained through a structured questionnaire survey conducted on 202 nurses. The average of knowledge score was 17.68 and their perceived susceptibility, perceived severity, perceived benefits, and performances had correlation. There was difference in their performances in accordance with their general characteristics including marriage, clinical experiences, positions, and affiliated department. Factors that affected MDROs infection management performance included perceived benefits and affiliated department with an explanation power of 35%. Therefore, it is necessary to emphasize the benefits by including advantages and effects of performing the MDROs infection control at the time of the development. In addition, nurses are required to have MDROs infection control education.

• The KIPS Transactions:PartD
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• v.14D no.7
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• pp.791-800
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• 2007

The purpose of the research is to investigate the impact of the implementation and recognition for KM strategies on KM performances in public enterprises. The research identified critical factors of KM strategies and performances through literature review, measured the degrees of implementation and significance recognition for the strategies targeting public enterprises, and analyzed the KM performance levels based on the combined degrees of the implementation and the recognition for KM strategies. The findings illustrate that not only the KM strategies implementation, but also the significance recognition can affect the KM performances. The researchers urge that organizations, in advance, should request their employees' understanding and significance recognition for KM strategies to successfully implement their knowledge management.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.1
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• pp.379-388
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• 2018

This study aims to analyze the causes of conflict between street performing subjects and identify methods to induce their collaboration in promoting a creative city. This study proposes preventive mechanisms after identifying potential problems in performances on the streets of Jeju, which aims to become "the island of culture and art". To this aim, the type and relationship between the subjects of conflict, characters of conflict, solutions, extent and role of tolerance, responses of the subjects, and type of conflict management employed were examined and analyzed. We employed an in-depth interview method involving cases of conflict occurring during street performances in Jeju. were categorized into 6 types. First is conflict resulting from the lack of facilities. Second is conflict caused by non-designated performance venues. Third is conflict due to exclusive ambiance. Fourth is conflict resulting from direct engagement by neighboring residents. Fifth is conflict between residents and police during performances. Sixth is conflict by lack of definite relationship with relevant institutes. To systematically resolve these conflicts, we propose the following management methods: (1) behavioral approach of pretraining through a registration system; (2) establishment of busking zones and allocation after registration; (3) training of facilitators to manage street performances and extended roles; (4) establishment of standards for street performances through the systematic approach of ordinance; (5) training to secure tolerance of residents; and (6) simplification of deliberation process by building a collaborative system among institutes.