• International Journal of Computer Science & Network Security
• /
• 제24권6호
• /
• pp.187-199
• /
• 2024

This study based on TAM and D&M model to examine the Kuwaiti employee performance using the electronic document and records management system (EDRMS) in the Ministry of social affairs and labor. Additionally, this study has proposed the moderating effect of work cooperation on employee performance Data of 345 employees were collected from Ministry of social affairs and labor in Kuwait. Smart PLS 3.0 was used to analyze the data. Results indicated that perceived ease of use and perceived usefulness have a positive influence on employee performance. However, findings do not support the relationship between system usage and user satisfaction. Additionally, the results show that there is a significant positive moderating effect of work cooperation. This research provides strong evidence for defining the key factors affecting system usage but also in view of its limits. It should be evaluated. Not all the factors affecting the intentions of end-users to use EDRMS have been fully covered. There are major variables, for example, facilitating state and perceived compatibility are important factors that can be covered in future research. This research is an addition to the current literature and the first attempt in this area to the best of authors' knowledge.

• 한국전자거래학회지
• /
• 제7권2호
• /
• pp.157-171
• /
• 2002

We want to find a timestamping method which improves efficient performance and have high-level security to send secured messages in the digital signature and the law of e-commerces. Our paper shows a H-binary tree of time stamp to use a time stamp protocol with high security and performance in the packets of sending messages. We implement and analyze the protocols, show to compare with previous RSA methods. Our proposed protocol has O(log n) time complexity and high-performance.

• 한국분말야금학회:학술대회논문집
• /
• 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part2
• /
• pp.887-888
• /
• 2006

The present study describes the wear and mechanical behaviour of carbide composites in cyclic loading applications (blanking of sheet metal). Adhesive wear as well as fatigue endurance were tested, complemented by XRD studies. It was found that the blanking performance of a carbide composite is controlled by its resistance to adhesion wear and fatigue sensitivity. XRD studies revealed that fatigue damage is preceded by plastic strain in both phases of the composites

• 한국지리정보학회지
• /
• 제9권2호
• /
• pp.206-216
• /
• 2006

본 연구의 주된 목적은 환경지리정보체계(이하 EGIS)의 성과분석을 위한 분석모형 중 IT BSC의 적합성을 검토하고, 이를 실제로 적용해 봄으로써 나타나는 분석결과를 바탕으로 EGIS의 체계적 성과관리를 위한 바람직한 방향을 제시하는 것이다. 이러한 목적을 달성하기 위해 본 연구는 기존의 BSC를 이용한 정보시스템 성과측정 모형을 EGIS에 맞게 재정립하였다. 정립된 분석모형을 이용하여 지난 5년간 EGIS가 낸 성과를 도출하고 각각의 근본원인을 규명하여 향후 개선방향의 기반자료로 활용하였다. 최종적 성과를 종합하기 위하여 핵심성과지표 별 측정치와 AHP를 통하여 산출된 가중치를 곱하여 환산한 결과 환경지리정보체계의 종합성과는 총 105.3점으로 산출되어, '성과목표 달성'의 기준이 되는 100점을 넘어서 5.3점 만큼의 성과를 더 낸 것으로 나타났다. 성과분석결과 기존의 재무적 관점 이외의 다양한 관점으로 환경지리정보체계의 균형적 성과를 살펴 본 것이 본 연구의 장점이며, 이와 같은 성과가 환경분야에 어떠한 영향을 미치는가에 대한 향후 연구가 필요하다.

• Journal of Hospice and Palliative Care
• /
• 제24권4호
• /
• pp.214-225
• /
• 2021

Purpose: This study reviewed screening and assessment tools that are used to measure delirium in patients with cancer in hospice and palliative care settings and examined their psychometric properties. Methods: Four databases were searched for studies using related search terms (delirium, tools, palliative care, cancer, and others). The inclusion criteria were a) studies that included screening/assessment tools for measuring delirium in cancer patients receiving hospice/palliative care, and b) studies published in English or Korean. The exclusion criteria were a) studies that were conducted in an intensive care setting, and b) case studies, qualitative studies, systematic reviews, or meta-analyses. Results: Out of the 81 studies identified, only 10 examined the psychometric properties of tools for measuring delirium, and 8 tools were ultimately identified. The psychometric properties of the Memorial Delirium Assessment Scale (MDAS) were the most frequently examined (n=5), and the MDAS showed good reliability, concurrent validity, and diagnostic accuracy. The Delirium Rating Scale had good reliability and diagnostic accuracy. The Delirium Rating Scale-Revised 98 also showed good reliability and structural validity, but its diagnostic performance was not examined in hospice/palliative care settings. The Nursing Delirium Screening Scale showed relatively low diagnostic accuracy. Conclusion: The MDAS showed evidence of being a valid assessment tool for assessing delirium in patients with cancer in palliative care. Few studies examined the diagnostic performance of delirium tools. Therefore, further studies are needed to examine the diagnostic performance of screening/assessment tools for the optimal detection of delirium in patients with cancer in hospice/palliative care.

• 유통과학연구
• /
• 제13권3호
• /
• pp.61-67
• /
• 2015

Purpose - Exports have long been regarded as significant drivers of sustainable competitive advantage and growth among small and medium enterprises (SMEs). The export activities of SMEs are particularly important in the context of export-oriented economies such as Korea. Although many studies have examined the determinants of exports, it is difficult to find empirical studies about the determinants of the export performance of regional SMEs. This study investigates the determinants of export performance in the regional SME context based on an integrated approach that combines the environment factor of industrial organization theory, competitive strategy theory, and the competences of the resource-based view. Research design, data, and methodology - To empirically analyze the determinants of export performance in the regional SMEs, data were collected from firms in the Daegu metropolitan area. Data were collected directly through questionnaire surveys; in addition, secondary financial data were also taken from the KIS-VALUE database. Out of the 175 responses that were received, 143 were considered to be worth examining. After testing the reliability and validity of the variables through multiple items such as environmental turbulence and competitive strategy, hypotheses were verified by using five multi-regression models. These models were: a control model with organizational size and age, an environmental model with technology and market turbulence, a competency model with R&D and foreign distribution channels, a strategy model with product and market differentiation, and an integrated model including all of these variables. Results - First, as a control variable, the organization size has significant positive effects on export performance. Second, technology turbulence based on industrial organization theory has significant positive effects on export performance, but market turbulence does not affect export performance. Third, the foreign market distribution competency of the resource-based view has strong positive effects on export performance, but the R&D competency does not affect export performance. Fourth, the product differentiation strategy from competitive strategy theory positively impacts export performance, but market differentiation does not affect export performance. Finally, in the integrated model, only the foreign distribution competency of the resource-based view has a significant effect on export performance. Conclusions - The empirical results of this study verified the usefulness of the rationales behind the three theories to explain the export performance of the regional SMEs, especially the importance of the foreign market distribution competency from the resource-based view. With regard to practical considerations, this study's implications suggest that the use of technological environmental changes by industries is better than the use of market changes. Further, the use of the product differentiation strategy is more effective than the use of the market-driving strategy, and the distribution channel competency plays a stronger role than the technology-oriented competency with regard to the export performance position of regional SMEs. Future studies should examine relational perspectives, such as trust among channel partners. Therefore, the configuration approach is more useful in enhancing pragmatism by comparing high- and low-export companies.

• 한국임상수의학회지
• /
• 제32권1호
• /
• pp.73-77
• /
• 2015

There has been increasing attention on sample size requirements in peer reviewed medical literatures. Accordingly, a statistically-valid sample size determination has been described for a variety of medical situations including diagnostic test accuracy studies. If the sample is too small, the estimate is too inaccurate to be useful. On the other hand, a very large sample size would yield the estimate with more accurate than required but may be costly and inefficient. Choosing the optimal sample size depends on statistical considerations, such as the desired precision, statistical power, confidence level and prevalence of disease, and non-statistical considerations, such as resources, cost and sample availability. In a previous paper (J Vet Clin 2012; 29: 68-77) we briefly described the statistical theory behind sample size calculations and provided practical methods of calculating sample size in different situations for different research purposes. This review describes how to calculate sample sizes when assessing diagnostic test performance such as sensitivity and specificity alone. Also included in this paper are tables and formulae to help researchers for designing diagnostic test studies and calculating sample size in studies evaluating test performance. For complex studies clinicians are encouraged to consult a statistician to help in the design and analysis for an accurate determination of the sample size.

• 한국경영과학회지
• /
• 제31권4호
• /
• pp.49-68
• /
• 2006

E-business strategy has interests in Issues of strategic positioning and its impact on firm performance. These studies address the environmental factors as antecedents to strategic decision makings and its consequences such like firm performance. However most studies has not considered the role of business models In explaining e-business firm performance. We adopt Porter's generic strategies to the e-business context. We Identify business models and e-business environmental factors as antecedents and then examine these factors Influence on firm performance. We find that uncertainty of environment has a negatively related to the strategic choices of e-Business firms; in contrast, market turbulence positively affects the level of adoption of all the strategies. Among the strategies, marketing differentiation only makes an Impact on firm performance.

• 디지털산업정보학회논문지
• /
• 제6권4호
• /
• pp.267-278
• /
• 2010

The study has following objectives: First, an objective of this studies proves relations between a entrepreneurship and an innovation performance. Second, in innovation performance relationships of social capital this studies proves a mediating effects of a social capitall through theory study, an empirical analysis. In accordance with results of a hypothesis verification, first, a entrepreneurship affects positively a innovation performanc. Second, in accordance with analysis results of a social capital, an entrepreneurship, a innovation performance verified a mediating effects of a social capital. This results mean that the more a social capital an organization has among members, the higher an innovation performance.

• 한국재난정보학회 논문집
• /
• 제6권2호
• /
• pp.45-65
• /
• 2010

There has been tighten up the need of seismic retrofit about 31 public facilites since published "Korean Earthquake Damage Prevention Law". Therefore, seismic studies have been developed and enforced the studies. Measuring dynamic stiffness of subsurface materials influence on seismic performance evaluation to build up seismic retrofit. The soil dynamic properties for seismic performance evaluation are N-value from using SPT(standard penetration test), dynamic shear elastic modulus and dynamic deformation modulus using laboratory tests. The most unscientific element in ground dynamic properties involved uncertainties is obviously N-value using SPT. This study shows that effect of N-value included natural and artificial uncertainties to seismic performance evaluation of ground structures is not only approached probabilistic analysis using FOSM method and tornado diagram, but also review how to spread effect of seismic performance evaluation of ground structures.