Results 11 to 20 of about 1,257,173 (313)

Ultrarelativistic Particle Collisions [PDF]

open access: yesPhysical Review Letters, 2010
4 pages, 2 figures (replaced with version similar to published one)
Choptuik, Matthew W., Pretorius, Frans
openaire   +3 more sources

Critical Altitudinal Shift From Detrital to Pedogenic Origin of the Magnetic Properties of Surface Soils in the Western Pamir Plateau, Tajikistan

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Sedimentary archives of the westerlies‐influenced Pamir Plateau in Tajikistan, a climatically sensitive region in arid central Asia, provide information on past climatic changes and the tectonic evolution of the northern Tibetan Plateau.
Jian Kang   +6 more
doaj   +1 more source

Time-Coordinated Control for Unmanned Aerial Vehicle Swarm Cooperative Attack on Ground-Moving Target

open access: yesIEEE Access, 2019
In this paper, cooperative attack control law analysis and design problems for unmanned aerial vehicle (UAV) swarm attack on ground-moving target with time-coordinated strategies are investigated.
Yueqi Hou   +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

A Late Miocene Terrestrial Temperature History for the Northeastern Tibetan Plateau's Period of Tectonic Expansion

open access: yesGeophysical Research Letters, 2019
During the Late Miocene, the climate patterns and ecosystems of continental land masses experienced crucial transitions, but whether the principal driver was regional tectonic forcing or a decline in CO2 concentrations remains debated.
Chihao Chen   +7 more
doaj   +1 more source

A Class of Collisions of Plane Impulsive Light--Like Signals in General Relativity [PDF]

open access: yes, 2002
We present a systematic study of collisions of homogeneous, plane--fronted, impulsive light--like signals which do not interact after head--on collision. For the head--on collision of two such signals, six real parameters are involved, three from each of
Barrabès C.   +5 more
core   +5 more sources

Quarkonium Production in PHENIX [PDF]

open access: yes, 2007
Quarkonia provide a sensitive probe of the properties of the hot dense medium created in high energy heavy ion collisions. Hard scattering processes result in the production of heavy quark pairs that interact with the collision medium during ...
Abigail Bickley   +15 more
core   +2 more sources

Distributed Collision-Free Motion Coordination on a Sphere: A Conic Control Barrier Function Approach [PDF]

open access: yes, 2020
This letter studies a distributed collision avoidance control problem for a group of rigid bodies on a sphere. A rigid body network, consisting of multiple rigid bodies constrained to a spherical surface and an interconnection topology, is first ...
Ames, Aaron D.   +3 more
core   +2 more sources

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

Probabilistic seismic hazard assessment of Nepal using multiple seismic source models

open access: yesEarth and Planetary Physics, 2018
The potential for devastating earthquakes in the Himalayan orogeny has long been recognized. The 2015 MW7.8 Gorkha, Nepal earthquake has heightened the likelihood that major earthquakes will occur along this orogenic belt in the future.
Md Moklesur Rahman, Ling Bai
doaj   +1 more source

Home - About - Disclaimer - Privacy