摘要：
Aimed at enhancing accuracy and enriching se-mantic features of indoor map construction which is used for path planning of robot, this paper proposes a novel method based on extracting features from point clouds which come from millimeter-wave radar, combined convolutional neural networks. Data obtained from millimeter-wave radar are divided into two parts. One part extracts line segments and edge points as features of point clouds. The features build similar index is used to represent similarity between two point clouds to choose optimal transform matrix which transforms one point cloud into another. We take advantage of influences of different materials on millimeter-wave, using convolutional neural networks to distinguish different materials in environments to construct semantic maps. The results of experiments show that our method can achieve more accurate map than the typical map construction algorithm. The results also show that the obtained map can effectively represent materials categories of indoor environment.
摘要：
We study the (n,3)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$(n, 3)$$\end{document}-MaxSAT problem where we are given an integer k and a CNF formula with n variables, each of which appears in at most 3 clauses, and the question is whether there is an assignment that satisfies at least k clauses. Based on refined observations, we propose a branching algorithm for the (n,3)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$(n, 3)$$\end{document}-MaxSAT problem which significantly improves the previous results. More precisely, the running time of our algorithm can be bounded by O*(1.175k)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$O<^>*(1.175<^>k)$$\end{document} and O*(1.194n)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$O<^>*(1.194<^>n)$$\end{document}, respectively. Prior to our study, the running time of the best known exact algorithm can be bounded by O*(1.194k)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$O<^>*(1.194<^>k)$$\end{document} and O*(1.237n)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$O<^>*(1.237<^>n)$$\end{document}, respectively.
摘要：
The magnetohydrodynamic nanofluid flow comprised of dust particles is carried out in the current investigation. The role of dust nanoparticles on the flow characteristics is vital. The radiative heat phenomena for the interaction of Cu nanoparticle are deliberated in this discussion. However, both water and oil (kerosene) are treated as conventional fluids. Regarding the current applications on nanofluid in industries for the production of several materials, it is important to use the nanoparticles as a coolant. In recent applications, for the CPU cooler Cu-nanoparticle is used because of its high thermal conductivity and as a good conductor of heat. The governing flow characteristics involved with nonlinear properties of partial differential equations are transformed into ordinary differential equations using suitable similarity variables. Further, numerical treatment is imposed using the in-build Matlab code bvp5c. The imitation is carried out for the various profiles using physical parameters and presented graphically. The numerical values for the rate coefficients are presented via tables and deliberated briefly.
作者机构：
[Peng X.; Zhang W.; Liu Z.; Gu K.] School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha, 410114, China
会议名称：
6th International Conference on Data Mining and Big Data, DMBD 2021
会议时间：
20 October 2021 through 22 October 2021
关键词：
Identity;MIoT device;Privacy;Traceable ring signature
作者：
Tiefang, Zou;Zhuzi, Liu;Jing, Zhou;Yunlong, Zhao;Danqi, Wang
作者机构：
[Tiefang, Zou; Jing, Zhou; Yunlong, Zhao; Danqi, Wang] Changsha University of Science and Technology, China;[Zhuzi, Liu] Changsha Social Work College, China
会议名称：
2021 International Research Council on the Biomechanics of Injury Asia, IRCOBI Asia 2021
作者：
Zhi Zheng;Qi Wu Chen;Tian Cheng Zhang;Ren Jie Zhang;Xing Fu Wang;...
期刊：
E3S Web of Conferences,2021年236:04025-null ISSN：2267-1242
通讯作者：
Wang, X.F.
作者机构：
[Chen Q.W.; Zhang T.C.; Wang X.F.; Zhang R.J.; Ma C.] Changjiang Yichang Waterway Bureau, Yichang, 443003, China;School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha, 410114, China;[Zheng Z.] Changjiang Yichang Waterway Bureau, Yichang, 443003, China, School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha, 410114, China
摘要：
The flourishing development of lithium-ion batteries(LIBs)has accelerated the manufacturing of potable electric devices,electric vehicles(EVs)and hybrid electric vehicles(HEVs).Lithium-rich layered oxide(LLMO)cathode materials are receiving international attention because they can deliver an exceptionally high rechargeable capacity of 250 mAh/g between 2.0 V-4.8 V.However,this high capacity cathode material still faces challenges,such as transition metal(TM)dissolution occurs at high electrode potentials(>4.5V vs.Li/Li+),and the evolution from layered structure to spinel-like upon cyling leads to the poor cycle life.Therefore,we have tried to synthesis LLMO cathode materials by sol-gel method and modify them via surface coating approach in this paper.
作者机构：
[Lin, Miao] The Traffic Accident Research Departmentat, CATARC;[Liu, Fuju; Dai, Bing] CATARC;[Hu, Lin] Changsha University of Science & Technology, China
会议名称：
2021 International Research Council on the Biomechanics of Injury Asia, IRCOBI Asia 2021
