Results 31 to 40 of about 1,420,902 (265)

Chance-Constrained Collision Avoidance for MAVs in Dynamic Environments

open access: yesIEEE Robotics and Automation Letters, 2019
Safe autonomous navigation of microair vehicles in cluttered dynamic environments is challenging due to the uncertainties arising from robot localization, sensing, and motion disturbances.
Hai Zhu, Javier Alonso-Mora
semanticscholar   +1 more source

The Influence of Selected Strain-Based Failure Criteria on Ship Structure Damage Resulting from a Collision with an Offshore Wind Turbine Monopile

open access: yesPolish Maritime Research, 2022
Offshore wind farms are developing well all over the world, providing green energy from renewable sources. The evaluation of possible consequences of a collision involves Finite Element computer simulations.
Niklas Karol, Bera Alicja
doaj   +1 more source

Burma Terrane part of the Trans-Tethyan Arc during collision with India according to palaeomagnetic data

open access: yesNature Geoscience, 2019
Convergence between the Indian and Asian plates has reshaped large parts of Asia, changing regional climate and biodiversity, yet geodynamic models fundamentally diverge on how convergence was accommodated since the India–Asia collision.
J. Westerweel   +9 more
semanticscholar   +1 more source

ECM-MAC: An Efficient Collision Mitigation Strategy in Contention Based MAC Protocol

open access: yesIEEE Access, 2021
Medium Access Control (MAC) is the sub-layer of data link layer in the communication OSI model, whose basic function is to control the hardware that interacts with the transmission medium. In Wireless sensor network, the communication is done without any
Mehwish Rasheed   +5 more
doaj   +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

Work conjugate strain of virial stress

open access: yesInternational Journal of Smart and Nano Materials, 2016
Certain stress tensor and strain tensor form a conjugate pair if there exists a scalar valued strain energy function such that the stress tensor is equal to the derivative of strain energy function with respect to the strain tensor.
Leyu Wang, Jiaoyan Li, James D. Lee
doaj   +1 more source

The Association of Unfavorable Traffic Events and Cannabis Usage: A Meta-Analysis

open access: yesFrontiers in Pharmacology, 2018
Background: In the last years were published many epidemiological articles aiming to link driving under the influence of cannabis (DUIC) with the risk of various unfavorable traffic events (UTEs), with sometimes contradictory results.Aim: The primary ...
Sorin Hostiuc   +4 more
doaj   +1 more source

The Clash of Two Christianities in the Images of Zosima and Ferapont [PDF]

open access: yesДостоевский и мировая культура: Филологический журнал, 2019
This paper considers the points of contact and repulsion between two streams of Christianity, as epitomized by two characters from the novel The Brothers Karamazov.
Lazar Milentijevic
doaj   +1 more source

DECREASING THE RA COLLISION IMPACT FOR MASSIVE NB-IOT IN 5G WIRELESS NETWORKS

open access: yesJordanian Journal of Computers and Information Technology, 2021
To satisfy the gigantic need for Internet of things (IoT) applications, the third-generation partnership project (3GPP) has revealed the narrowband IoT (NB-IoT) standard. In any case, collisions in the radio access channel of NB-IoT can be extreme due to
Bilal Rabah Al-Doori, Ahmed Zurfi
doaj   +1 more source

Building Blue Stragglers with Stellar Collisions

open access: yes, 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

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