Results 21 to 30 of about 1,071,903 (285)

Improvement and Analysis for Geo-fence Violation Detection Algorithm of Unmanned Aerial Vehicle

Hangkong gongcheng jinzhan, 2020
The core algorithm to prevent unmanned aerial vehicle(UAV)from flying out of the designated airspace or flying into the restricted airspace is the goe-fence violation detection algorithm of UAV.
XIE Dongcen, LIANG Xiaolong, ZHANG Jiaqiang, FU Qixi, ZHANG Kai   +4 more
doaj   +1 more source

Asymptotic preserving Implicit-Explicit Runge-Kutta methods for non linear kinetic equations [PDF]

, 2012
We discuss Implicit-Explicit (IMEX) Runge Kutta methods which are particularly adapted to stiff kinetic equations of Boltzmann type. We consider both the case of easy invertible collision operators and the challenging case of Boltzmann collision ...
Dimarco, G., Pareschi, L.
core   +3 more sources

Binomial collisions and near collisions

Integers : Electronic Journal of Combinatorial Number Theory, 2017
We describe efficient algorithms to search for cases in which binomial coefficients are equal or almost equal, give a conjecturally complete list of all cases where two binomial coefficients differ by 1, and give some identities for binomial coefficients that seem to be new.
Blokhuis, A., Brouwer, A.E., de Weger, B.M.M.   +2 more
openaire   +4 more sources

Thermal–Electrical–Mechanical Coupled Finite Element Models for Battery Electric Vehicle

Machines
The safety of lithium-ion batteries is critical to the safety of battery electric vehicles (BEVs). The purpose of this work is to develop a method to predict battery thermal runaway in full electric vehicle crash simulation.
Chenxi Ling, Leyu Wang, Cing-Dao Kan, Chi Yang   +3 more
doaj   +1 more source

Time-Varying Formation Control for Second-Order Discrete-Time Multi-Agent Systems With Directed Topology and Communication Delay

IEEE Access, 2019
Time-varying formation control protocol design and analysis problems for the second-order discrete-time multi-agent systems with directed interaction topology and communication delay are investigated.
Lyulong He, Jiaqiang Zhang, Yueqi Hou, Xiaolong Liang, Peng Bai   +4 more
doaj   +1 more source

A new kinetic theory model of granular flows that incorporates particle stiffness

, 2018
Granular materials are characterized by large collections of discrete particles of sizes larger than one micron, where the particle-particle interactions are significantly more important than the particle-fluid interactions.
Duan, Yifei, Feng, Zhi-Gang
core   +1 more source

Building Blue Stragglers with Stellar Collisions

, 2007
The evolution of stellar collision products in cluster simulations has usually been modelled using simplified prescriptions. Such prescriptions either replace the collision product with an (evolved) main sequence star, or assume that the collision ...
Glebbeek, E., Pols, O. R.
core   +1 more source

Time-Varying Formation Control For Second-Order Discrete-Time Multi- Agent Systems With Switching Topologies and Nonuniform Communication Delays

IEEE Access, 2019
Time-varying formation control and velocity tracking problems for second-order discrete-time multi-agent systems with switching jointly-connected topologies and nonuniform communication delays are investigated.
Lyulong He, Jiaqiang Zhang, Yueqi Hou, Xiaolong Liang, Peng Bai   +4 more
doaj   +1 more source

Colliding Impulsive Gravitational Waves and a Cosmological Constant [PDF]

, 2015
We present a space--time model of the collision of two homogeneous, plane impulsive gravitational waves (each having a delta function profile) propagating in a vacuum before collision and for which the post collision space--time has constant curvature ...
Barrabès, C., Hogan, P. A.
core   +3 more sources

Effects of acceleration on the collision of particles in the rotating black hole spacetime

, 2012
We study the collision of two geodesic particles in the accelerating and rotating black hole spacetime and probe the effects of the acceleration of black hole on the center-of-mass energy of the colliding particles and on the high-velocity collision ...
A. Williams, A.A. Grib, A.A. Grib, B. Carter, C.Q. Liu, Changqing Liu, E. Berti, I. Bengtsson, J. Podolský, J.B. Griffiths, J.B. Griffiths, J.F. Plebański, J.L. Said, Jiliang Jing, K. Lake, M. Banados, M. Banados, M. Banados, M. Kimura, M. Patil, M. Patil, M. Patil, O.B. Zaslavskii, O.B. Zaslavskii, O.B. Zaslavskii, R.P. Kerr, S.W. Hawking, S.W. Wei, S.W. Wei, Songbai Chen, T. Harada, T. Jacobson, U.A. Gillani, Weiping Yao, Y. Zhu, Y. Zhu   +35 more
core   +1 more source