Results 21 to 30 of about 1,247,447 (314)

Brane Worlds in Collision [PDF]

open access: yes, 2005
We obtain an exact solution of the supergravity equations of motion in which the four-dimensional observed universe is one of a number of colliding D3-branes in a Calabi-Yau background.
A. Papapetrou   +4 more
core   +3 more sources

High‐resolution seismic tomography of the 2015 Mw7.8 Gorkha earthquake, Nepal: Evidence for the crustal tearing of the Himalayan rift

open access: yesGeophysical Research Letters, 2016
The Mw7.8 Gorkha earthquake struck Nepal and ruptured the boundary between the Indian and Eurasian plates. We conducted 2‐D Pg wave tomography to clarify the seismogenic structure and try to understand causal mechanisms for this large earthquake, using ...
Shunping Pei   +4 more
doaj   +1 more source

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

open access: yesIEEE 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   +4 more
doaj   +1 more source

Binomial collisions and near collisions

open access: yesIntegers : 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.   +2 more
openaire   +4 more sources

Car collision avoidance with velocity obstacle approach [PDF]

open access: yes, 2019
The obstacle avoidance maneuver is required for an autonomous vehicle. It is essential to define the system's performance by evaluating the minimum reaction times of the vehicle and analyzing the probability of success of the avoiding operation.
Antonelli, Dario   +3 more
core   +1 more source

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

open access: yesMachines
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   +3 more
doaj   +1 more source

Redundant neural vision systems: competing for collision recognition roles [PDF]

open access: yes, 2013
Ability to detect collisions is vital for future robots that interact with humans in complex visual environments. Lobula giant movement detectors (LGMD) and directional selective neurons (DSNs) are two types of identified neurons found in the visual ...
Rind, F. Claire, Yue, Shigang
core   +1 more source

Boltzmann Collision Term

open access: yes, 2005
We derive the Boltzmann equation for scalar fields using the Schwinger-Keldysh formalism. The focus lies on the derivation of the collision term. We show that the relevant self-energy diagrams have a factorization property. The collision term assumes the
L. P. Kadanoff   +4 more
core   +1 more source

Colliding Impulsive Gravitational Waves and a Cosmological Constant [PDF]

open access: yes, 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

Radiometric K/ag data as evidence of the geodynamic evolution of the Ždraljica ophiolitic complex, central Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2005
The study presents age data and petrologic characteristics of igneous rocks of the Ždraljica ophiolitic complex (ŽOC), situated in central Serbia, 150 km south of Belgrade.
Resimić-Šarić Kristina   +2 more
doaj   +1 more source

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