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Mobile Networks and Applications - Inverse kinematics is an important basic theory in walking control of biped robot. This study focuses on the parameter setting using the improved algorithm in... 相似文献
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Liang Yan-Jun Lu You-Jun Gao De-Xin Wang Zhong-Sheng 《International Journal of Control, Automation and Systems》2022,20(2):507-514
International Journal of Control, Automation and Systems - The vibration control problem of offshore jacket platforms is studied. The model of offshore platforms with nonlinear interactions of the... 相似文献
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《Carbon》2015
Absorbents with “tree-like” structures, which were composed of hollow porous carbon fibers (HPCFs) acting as “trunk” structures, carbon nanotubes (CNTs) as “branch” structures and magnetite (Fe3O4) nanoparticles playing the role of “fruit” structures were prepared by chemical vapor deposition technique and chemical reaction. Microwave reflection loss, permittivity and permeability of Fe3O4–CNTs–HPCFs composites were investigated in the frequency range of 2–18 GHz. It was proven that prepared absorbents possessed the excellent electromagnetic wave absorbing performances. The bandwidth with a reflection loss less than −15 dB covers a wide frequency range from 10.2 to 18 GHz with the thickness of 1.5–3.0 mm, and the minimum reflection loss is −50.9 dB at 14.03 GHz with a 2.5 mm thick sample layer. Microwave absorbing mechanism of the Fe3O4–CNTs–HPCFs composites is concluded as dielectric polarization and the synergetic interactions exist between Fe3O4 and CNTs–HPCFs. 相似文献
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《Carbon》2015
We report a simple route to synthesize iron carbide/carbon yolk–shell composite via a facile two-step process including polymerization of pyrrole using Fe3O4 as a sacrificial template to form a Fe3O4/polypyrrole composite, followed by annealing at high temperature in N2 atmosphere. The yolk–shell composite, with iron carbide (Fe2.5C) embedded in nitrogen-doped carbon layers, shows impressively high catalytic activity and stability for oxygen reduction reaction in alkaline solution. Both the pyridinic-N and graphic-N in the shell of Fe3O4–PPy-700, together with the Fe2.5C confined in carbon layers are believed to be the active sites for the ORR. 相似文献
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E-voting maybe replaces the traditional voting scheme in the future, however, the security threat must be paid enough attention. In this paper, a novel e-voting scheme is proposed using secret sharing and k-anonymity, which not only satisfies the basic security goals such as the non-cheating, the universal verifiability, the confidentiality, and the anonymity, but also achieves the addition properties including coercion-resistance and unconditional security since the security of the proposed scheme does not rely on any computational hard problem.
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杨嵩 《计算机与数字工程》2012,40(4):35-38
HTK是英国剑桥大学开发的一套基于C语言的语音处理工具箱,广泛应用于语音识别、语音合成以及字符识别等领域。文章在详细介绍了语音识别的过程、原理及相关概念的基础之上,介绍了HTK的基本原理和软件结构,以及使用HTK完成语音识别任务的整个过程。最后,讨论声学单元等一系列的模型参数的选择,使用HTK搭建一个简单连续汉语语音输入系统。 相似文献