By introducing partial divided differences and partial inverse differences, bivariate symmetry associated continued fractions blending rational interpolation is constructed. We discuss the recursive algorithm, interpo...
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We have measured the gamma-ray emission spectrum of the Moon using the data collected by the Large Area Telescope onboard the Fermi satellite during its first seven years of operation, in the energy range from 30 MeV ...
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We have measured the gamma-ray emission spectrum of the Moon using the data collected by the Large Area Telescope onboard the Fermi satellite during its first seven years of operation, in the energy range from 30 MeV up to a few GeV. We have also studied the time evolution of the flux, finding a correlation with the solar activity. We have developed a full Monte Carlo simulation describing the interactions of cosmic rays with the lunar surface. The results of the present analysis can be explained in the framework of this model, where the production of gamma rays is due to the interactions of cosmic-ray proton and helium nuclei with the surface of the Moon. Finally, we have used our simulation to derive the cosmic-ray proton and helium spectra near Earth from the Moon gamma-ray data.
Signcryption is a cryptographic primitive that performs digital signature and public key encryption simultaneously, at lower computational costs and communication overhead than signing and encrypting separately. Recen...
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Signcryption is a cryptographic primitive that performs digital signature and public key encryption simultaneously, at lower computational costs and communication overhead than signing and encrypting separately. Recently, Chung et al. proposed an anonymous ECC-based signcryption scheme. We show that their scheme is not secure even against a chosen-plaintext attack.
The paper presents the electromyogram (EMG)-based neural network control of an upper-limb power-assist exoskeleton robot, which is proposed to control the robot in accordance with the user's motion intention. The ...
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To begin with, this paper introduces a topic map oriented e-learning platform - Yotta. We compare the Yotta with the traditional e-learning platform Moodle from the aspects of learning resources organization, design o...
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ISBN:
(纸本)9781479909735
To begin with, this paper introduces a topic map oriented e-learning platform - Yotta. We compare the Yotta with the traditional e-learning platform Moodle from the aspects of learning resources organization, design of learning activities, learning behavior characteristics of learners, etc. Secondly, we provide two new criteria which can reflect e-learners' learning behavior using topic maps: the coverage of knowledge elements clicked by e-learners on topic maps (F);the length of time from loginning Yotta to clicking on the first useful knowledge element (T). Finally, we analyze the changes of e-learners' learning behavior and the learning efficiency on these two different e-learning platforms. The testees in the experiment are twenty-eight students learning the course of "Computer network". The experimental results show that the features as learning positivity and learning time of e-learners do not change with the type of network platforms. This discovery can further provide the nodes of our personalized recommendation to e-learners.
The frequent occurrence of natural disasters has drawn people's attention to the aftermath work, especially the effective routing of emergency vehicles carrying relief efforts. Based on the situation where some di...
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The frequent occurrence of natural disasters has drawn people's attention to the aftermath work, especially the effective routing of emergency vehicles carrying relief efforts. Based on the situation where some disaster hit areas can be informed in advance while could not accept emergency service, this paper introduces the disclosure date and release date to Nomadic TSP model, studies an online Nomadic TSP problem based on advanced information, and gives a lower bound. When the metric space is the real line, an ENO-dd algorithm is presented. For general metric spaces, a GTR-dd algorithm is presented. Competitive analysis is given for these two algorithms respectively. The results indicate that the more advanced information, the better these two algorithms perform. More general information structure and optimal algorithm design can be the future research.
Whittaker-Shannon interpolation formula instead of narrowband filter (NF) is used to interpolate the signal more precisely in wideband direction-of-arrival (DOA) estimation problem when the number of samples is highly...
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Whittaker-Shannon interpolation formula instead of narrowband filter (NF) is used to interpolate the signal more precisely in wideband direction-of-arrival (DOA) estimation problem when the number of samples is highly limited. A novel algorithm named block FOCal Underdetermined System Solver (BFOCUSS) is proposed to solve this problem. The simulation results validate the superior performance compared with the other algorithms.
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