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Singular Spectrum Analysis (SSA) is a relatively simple and powerful method in the area of time series analysis that is mainly based on matrix analysis. In this paper, we present a methodological comparison between the univariate and multivariate versions of SSA. Additionally, we explore the advantages of multivariate SSA in terms of theoretical results and with application to a real data set on currency exchange rates. 相似文献
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The evolvable multiprocessor （EvoMP）, as a novel multiprocessor system-on-chip （MPSoC） machine with evolvable task decomposition and scheduling, claims a major feature of low-cost and efficient fault tolerance. Non-centralized control and adaptive distribution of the program among the available processors are two major capabilities of this platform, which remarkably help to achieve an efficient fault tolerance scheme. This letter presents the operational as well as architectural details of this fault tolerance scheme. In this method, when a processor becomes faulty, it will be eliminated of contribution in program execution in remaining run-time. This method also utilizes dynamic rescheduling capability of the system to achieve the maximum possible efficiency after processor reduction. The results confirm the efficiency and remarkable advantages of the proposed approach over common redundancy based techniques in similar systems. 相似文献
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This paper started with the review of the history of technology acceptance model from TRA to UTAUT. The expected contribution is to bring to lime light the current development stage of the technology acceptance model. Based on this, the paper examined the impact of UTAUT model on ICT acceptance and usage in HEIs. The UTAUT model theory was verified using regressions analysis to understand the behavioral intention of the ADSU academic staffs’ acceptance and use of ICT in their workplace. The research objective is to measure the most influential factors for the acceptance and usage of ICT by ADSU academic staff and to identify the barriers. Two null hypotheses were stated: (1) the academic staff of ADSU rejects acceptance and usage of ICT in their workplace. (2) UTAUT does not predict the successful acceptance of ICT by the academic staff of the Adamawa State University. In summary, our findings shows that the four constructs of UTAUT have significant positive influence and impact on the behavioral intention to accept and use ICT by the ADSU academic staff. This shows that university academic staff will intend to use ICT that they believe will improve their job performance and are easy to use. The facilitating conditions such as appropriate hardware, software, training and support should be in place by the management. In the Adamawa State University, EE and SI are found to be the most influential predictors of academic staff acceptance of ICT and use among the four constructs of UTAUT. The greatest barriers are time and technical support for staff. Knowledge gained from the study is beneficial to both the university academic staff and the Nigerian ICT policy makers. 相似文献
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Ernest Eugster Robin Day Glenn Graham Mytton Sayed A. Rahim Dan J. Wedemeyer L.S. Harms 《Communication Booknotes Quarterly》2013,44(3-4):33-36
TELEVISION PROGRAMMING ACROSS NATIONAL BOUNDARIES: THE EBU AND OIRT EXPERIENCE by Ernest Eugster (Dedham, Mass.: Artech House, 1983---$50.00) CULTURES IN COLLISION: THE INTERACTION OF CANADIAN AND U.S. TELEVISION BROADCAST POLICIES (New York: Praeger, 1984---price not given) INTERNATIONAL COMPETITIVENESS IN ELECTRONICS (Washington, D.C.: Government Printing Office, 1983---price not given, paper) FINANCING OF UNITED STATES EXPORTS OF TELECOMMUNICATIONS EQUIPMENT by Robin Day Glenn (International Law Institute, 1920 N St., N.W., Suite 430, Washington, DC 20036---price not given, paper) UNISPACE '82: A CONTEXT FOR INTERNATIONAL COOPERATION AND COMPETITION (Washington, D.C.: Government Printing Office, 1983---price not given, paper) MASS COMMUNICATION IN AFRICA by Graham Mytton (London: Edward Arnold, 1983---price not given, paper) TELECOMMUNICATIONS FOR DEVELOPMENT (Geneva: International Telecommunications Union, 1983---price not given, paper) TELECOM PACIFIC edited by Sayed A. Rahim and Dan J. Wedemeyer (Honolulu: University of Hawaii Press, 1983---$25.00, paper) PTC '84 PROCEEDINGS edited by Dan J. Wedemeyer and L.S. Harms (Honolulu: University of Hawaii Press, 1984---price not given, paper) Two recent papers from Unesco (available from Unipub, 345 Park Ave. South, New York, NY 10010) INTERGOVERNMENTAL COUNCIL OF THE INTERNATIONAL PROGRAMME FOR THE DEVELOPMENT OF COMMUNICATION (Fourth Session, September 1983, Final Report, about 50 pages---price not given) 相似文献
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Masouda Rahim Hayden Hobbs Willem van der Merwe Michael Posthumus Malcolm Collins 《Journal of sports sciences》2018,36(5):551-557
The angiogenesis-signalling pathway is a physiological response after mechanical loading to promote matrix remodelling and thereby maintain tissue homeostasis. Studies have shown increased expression of angiogenic molecules in response to loading and in ruptured ligaments. Recently, polymorphisms within the vascular endothelial growth factor A (VEGFA) and kinase insert-domain receptor (KDR) genes were associated with risk of anterior cruciate ligament (ACL) ruptures and Achilles tendinopathy in Caucasian study groups. A case-control genetic association study was conducted on 100 controls and 98 participants with surgically-diagnosed ACL ruptures; of which 51 participants reported non-contact mechanism of injury (NON). All participants were genotyped for five functional polymorphisms: VEGFA (rs699947, rs1570360, rs2010963) and KDR (rs2071559, rs1870377). Haplotypes were inferred. In the male participants, the KDR rs2071559 AG genotype was significantly over-represented (P = 0.048, OR: 1.90, 95% CI: 1.00–3.59) in the controls. Furthermore, the GG genotype was significantly under-represented in the male controls compared to the male ACL group (P = 0.018, OR: 2.77, 95% CI: 1.17–6.55) and the male NON subgroup (P = 0.013, OR: 3.26, 95% CI: 1.24–8.58). Haplotype analysis implicated the KDR gene in all participants and in male participants separately. Collectively, these results implicate the angiogenesis-signalling pathway as a potentially key biological pathway contributing to ACL injury susceptibility. 相似文献