• Geomechanics and Engineering
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• 제11권3호
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• pp.345-359
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• 2016

In order to investigate the influence of the interfacial angel on failure characteristics and mechanism of combined coal-rock mass, 35 uniaxial/biaxial compressive simulation tests with 5 different interfacial angels of combined coal-rock samples were conducted by PFC2D software. The following conclusions are drawn: (1) The compressive strength and cohesion decrease with the increase of interfacial angle, which is defined as the angle between structure plane and the exterior normal of maximum principal plane, while the changes of elastic modulus and internal friction angle are not obvious; (2) The impact energy index $K_E$ decreases with the increase of interfacial angle, and the slip failure of the interface can be predicted based on whether the number of acoustic emission (AE) hits has multiple peaks or not; (3) There are four typical failure patterns for combined coal-rock samples including I (V-shaped shear failure of coal), II (single-fracture shear failure of coal), III (shear failure of rock and coal), and IV (slip rupture of interface); and (4) A positive correlation between interfacial angle and interface effect is shown obviously, and the interfacial angle can be divided into weak-influencing scope ($0-15^{\circ}$), moderate-influencing scope ($15-45^{\circ}$), and strong-influencing scope (> $45^{\circ}$), respectively. However, the confining pressure has a certain constraint effect on the interface effect.

• 한국ITS학회 논문지
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• 제23권3호
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• pp.29-47
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• 2024

공유 전동킥보드 실적자료를 기반으로 공유 전동킥보드 이용에 유의미한 영향을 미치는 요인을 도출한 연구는 국내외 다수 존재하나, 이용 예측력을 활용하여 모형을 비교 분석하고 타지역에 대한 적용을 통해 최적의 예측모형을 구축한 연구는 아직 많이 이루어지지 않았다. 따라서 본 연구에서는 국내의 공유 전동킥보드 실적자료를 활용하여 광진구 및 강남구 지역에 대한 세부적인 공유 전동킥보드 이용 영향요인 및 영향권을 명확히 정립함으로써 이용 예측력을 높이고, 공간적 자기상관성 검증을 통해 지역적 특성을 반영한 최적의 모형으로 지리가중 회귀모형을 도출하였다. 본 결과를 바탕으로 지역적 차이에 따라 발생하는 구축 모형의 방향성을 제시하고, 실제 이용량과 모형 예측량의 차이에 따른 이용자 관점에서의 주요 시사점을 도출하였다.

• Journal of Information Technology Applications and Management
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• 제15권3호
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• pp.111-125
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• 2008

The management of organizational Human Resource is steadily shifting away from pure hierarchical to market mechanisms that involve external vendors. HR Business Process Outsourcing (BPO) has recently emerged as a significant administrative innovation in an organization's strategy. Our paper attempts to understand firm-specific factors influencing the scope of HR BPO needs. Study results show that IT maturity and firm size are influential factors on the scope of HR BPO needs. We hope that our attempt at empirically examining and predicting this emergent phenomenon will stimulate others to look at this important strategic challenge facing firms from a theoretical perspective. Such research initiatives will allow us not only to better understand this complex phenomenon, but also to drive useful management prescriptions grounded on theory-based research.

• Journal of Information Technology Applications and Management
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• 제20권4호
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• pp.293-313
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• 2013

Preproject phase is an important but often ignored research area in information systems field although it has an undeniable importance for successful project. The purpose of this study is to identify factors affecting project performance in preproject phase and to find empirically critical factors among them. After deriving 9 factors through literature review including clear project definition, project leader position, staffing efforts, preproject team expertise, preproject knowledge scope, preproject partnering, top-management support, resource sufficiency, and project climate, the study investigate the influence of those factors on project performance. The study results reveal that clear project definition, project climate, resource sufficiency, pre-project knowledge scope, project leader position have significant impact on project process satisfaction, a measure of project performance, but the other factors do not. Based on the empirical results, the study discuss academic and practical implications.

• International journal of advanced smart convergence
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• 제13권2호
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• pp.94-102
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• 2024

This study examines the factors influencing loyalty to cultural arts events using data from the Survey Report on National Culture and Arts Activity in 2022 and 2023. The dependent variable is a binary variable representing the intention to revisit in the future, which serves as a proxy for loyalty. Given that the dependent variable is binary, the logit model specification is employed to estimate the average marginal effects. The estimation results indicate that audience satisfaction exerts the strongest influence on loyalty in both years. It can be observed that participation in cultural arts events is the second most important variable in determining loyalty. This suggests that the government should support the expansion of the scope of these activities and the diversification of programs in order to facilitate greater participation in a wider range of cultural arts activities.

• 한국병원경영학회지
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• 제28권4호
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• pp.47-61
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• 2023

Purpose: The purpose of this study was to identify the influential factors on job satisfaction among nursingassistants working in medical institutions. Methods: Small and medium-sized hospitals and general hospitals (S City, U City, N City), 11 Geriatric hospitals(S City, N City, U City, T City, I City), and 29 clinics (S City, I City, N City). Data was collected from 194employed nursing assistants from February 15 to April 15, 2021. The obtained data were analyzed usingdescriptive statistics, ANOVA, Scheffe's test, Pearson's correlation analysis, and hierarchical regression analysis. Results: We confirmed a positive correlation between job satisfaction and organizational commitment, andconducted a hierarchical multiple regression analysis using monthly income, work-life balance, organizational commitment, and work confidence as influencing factors for job satisfaction, and found that organizational commitment and work confidence were significant influencing factors for job satisfaction. Conclusion: To improve the job satisfaction of nursing assistants, it is necessary to improve their understanding of the organizational culture in the workplace and expand education and training opportunities to enhance their work confidence to induce long-term retention. In addition, it was suggested that clear job scope and adequatecompensation are necessary for efficient human resource management.

• 한국컴퓨터정보학회논문지
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• 제15권9호
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• pp.155-164
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• 2010

지금까지 EDI의 연구는 EDI 도입과 성과에 초점이 맞추어져 왔다. 그러나 최근 EDI의 확산에 관한 연구가 증가하고 있다. 이 연구의 목적은 첫째, EDI 확산의 여러 요인을 찾고, 두 번째 EDI 확산 요인과 EDI 확산 정도와의 관계를 밝혀보고자 한다. 이러한 목적을 달성하기 위해 본 연구에서 채택된 두가지 방법론은 첫째, 선행연구들을 폭넓게 분석하여 모델을 구축하는 것이며, 둘째 EDI 확산요인을 탐색하는 실험적 연구방법이다. 본 연구가설을 검증한 결과 첫째, EDI 내부확산에 영향을 미치는 중요한 변수들은 최고경영자의 지원, 업무범위, 정보기반, 적합성, 복잡성, 상대적 이익, 경쟁정도, 거래상대방 압력을 들 수 있고, 둘째 EDI의 외부확산에 영향을 미치는 주요 변수들은 최고 경영자의 지원, 업무범위, 정보기반, 적합성, 상대적 이익, 경쟁정도, 거래상대방 압력 이다. 최고경영자의 지원, 업무 범위, 정보기반, 적합성, 상대적 이익, 경쟁 정도 그리고 거래상대방 압력이 EDI 내부확산과 외부확산에 동시에 영향을 미치는 것을 알 수 있다.

• 대한간호학회지
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• 제40권3호
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• pp.307-316
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• 2010

Purpose: The purpose of this study was to identify the levels of relocation stress syndrome (RSS) and influencing the stress experienced by Intensive Care Unit (ICU) patients just after transfer to general wards. Methods: A cross-sectional study was conducted with 257 patients who transferred from the intensive care unit. Data were collected through self-report questionnaires from May to October, 2009. Data were analyzed using the Pearson correlation coefficient, t-test, one-way ANOVA, and stepwise multiple linear regression with SPSS/WIN 12.0. Results: The mean score for RSS was $17.80{\pm}9.16$. The factors predicting relocation stress syndrome were symptom experience, differences in scope and quality of care provided by ICU and ward nursing staffs, satisfaction with transfer process, length of stay in ICU and economic status, and these factors explained 40% of relocation stress syndrome (F=31.61, p<.001). Conclusion: By understanding the stress experienced by ICU patients, nurses are better able to provide psychological support and thus more holistic care to critically ill patients. Further research is needed to consider the impact of relocation stress syndrome on patients' health outcomes in the recovery trajectory.

• International Journal of Knowledge Content Development & Technology
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• 제14권3호
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• pp.77-91
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• 2024

This article aims to comprehensively analyze the crucial role played by data analytics and business intelligence (BI) strategies in propelling digital transformation within diverse industries. Through an extensive literature review and examination of real-world case studies, the study employs a systematic analysis of scholarly works and industry reports. This approach provides a panoramic view of how organizations utilize data-driven insights for competitive advantages, improved customer experiences, and fostering innovation. The findings underscore the pivotal significance of data analytics and BI strategies in influencing strategic decision-making, enhancing operational efficiency, and ensuring long-term sustainability across various industries. The study stands out in its originality by offering a unique synthesis of insights derived from scholarly works and real-world case studies, contributing to a holistic understanding of the transformative impact of data analytics and BI on contemporary business practices. While the study provides valuable insights, limitations include the scope of available literature and case studies. The implications call for further research to explore emerging trends and evolving challenges in the dynamic landscape of data analytics and BI. The practical implications highlight the tangible benefits organizations can derive from integrating data analytics and BI strategies, emphasizing their role in shaping strategic decisions and fostering operational efficiency. In a broader context, the study delves into the social implications of the symbiotic relationship between data analytics, BI, and digital transformation. It explores how these strategies impact broader societal and economic aspects, influencing innovation and sustainability.

• 한국응급구조학회지
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• 제23권3호
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• pp.7-16
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• 2019

Purpose: The present study was conducted to identify the factors influencing the perfromance of the emergency medical technicians (EMTs) utilizing smart advance life support (SALS) and to provide appropriate feedback to improve SALS performance. Methods: The study subjects were recruited from 119 EMT members working in G city participating in SALS project. A total of 155 data were used in the analysis. Results: Of the three areas, the mean score of importance was the highest (4.53±0.48). followed by educational needs (4.24±0.66), and SALS performance (4.08±0.55). Importance was identified as a significant factor influencing SALS performance (β=.187, p<.047).The length of education. work scope. amd role of level 1 EMTs vary significantly depending on the type of qualifications they have as emergency medical professionals, while the supply of level 1 EMTs has already reached a point of saturation. Accordingly, the current regulation on allowing level 2 EMTs with at least three years of experience to take the level 1 EMT test presents serious inequity for students just graduating from their emergency medical services program. It is also a factor that degrades the professionalism of level 1 EMTs. Conclusion: Based on the results of this study, it was found that mediation and education programs need to be implemented to highlight the importance of the tasks performed in SALS situations in order to improve performance.