Results 31 to 40 of about 238,447 (346)

Stationary scalar and vector clouds around Kerr-Newman black holes

, 2020
Massive bosons in the vicinity of Kerr-Newman black holes can form pure bound states when their phase angular velocity fulills the synchronisation condition, i.e. at the threshold of superradiance.
Herdeiro, Carlos A. R., Santos, Nuno M.
core   +1 more source

Communication Black Holes in Ground Segment Networks

SpaceOps 2012 Conference, 2012
The ISS Columbus Ground Segment is a complex MPLS-based WAN communication network witch connects sites located in USA (NASA), Russia (RSA), France (ATV-CC), Germany (COL-CC) and several user centres across Europe (network consists of more than 17 sites).
Szücs, Gabor, Maly, Stefan, Peinado, Dr. Osvaldo   +2 more
openaire   +2 more sources

Liquid Crystal Elastomers Under Confinement: A Review of Template‐Based Fabrication and Applications

Advanced Engineering Materials, EarlyView.
Template‐assisted confinement offers powerful ways to control the alignment, structure, and function of liquid crystal elastomers. This review highlights several templating strategies and details how geometry and interfaces shape material responses.
Meng Zhang, Le Yang, Xinyi Ding, James Phillip Scarbrough, Tushar Narayan Singh, Yuxing Yao, Shucong Li, Xiaoguang Wang   +7 more
wiley   +1 more source

How well can ultracompact bodies imitate black hole ringdowns?

, 2018
The ongoing observations of merging black holes by the instruments of the fledging gravitational wave astronomy has opened the way for testing the general relativistic Kerr black hole metric and, at the same time, for probing the existence of more ...
Glampedakis, Kostas, Pappas, George
core   +1 more source

Avoiding Black Hole and Cooperative Black Hole Attacks in Wireless Ad hoc Networks

, 2010
In wireless ad hoc networks, the absence of any control on packets forwarding, make these networks vulnerable by various deny of service attacks (DoS). A node, in wireless ad hoc network, counts always on intermediate nodes to send these packets to a given destination node.
Baadache, Abderrahmane, Belmehdi, Ali
openaire   +2 more sources

Hardness and approximation results for Black Hole Search in arbitrary networks

Theoretical Computer Science, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Klasing, Ralf, Markou, Euripides, Radzik, Tomasz, Sarracco, Fabiano   +3 more
openaire   +2 more sources

Hydrogel‐Based Photothermal‐Catalytic Membrane for Efficient Cogeneration of Freshwater and Hydrogen in Membrane Distillation System

Advanced Functional Materials, EarlyView.
This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun, Muhammad Usman Farid, Wenlong Xi, Gang Lu, Min Wei Boey, Sai Kishore Ravi, Patrick H.‐L. Sit, Alicia Kyoungjin An   +7 more
wiley   +1 more source

Critical Phenomena in Neutron Stars II: Head-on Collisions

, 2010
We consider the head-on collision of equal-mass neutron stars boosted towards each other and we study the behavior of such systems near the threshold of black-hole formation.
Kellermann, Thorsten, Radice, David, Rezzolla, Luciano   +2 more
core   +5 more sources

Enhanced Network Metric Prediction for Machine Learning-Based Cyber Security of a Software-Defined UAV Relay Network

IEEE Access
Unmanned aerial vehicles (UAVs), e.g., drones, have become crucial assets in the military’s fleet of vehicles. UAVs can provide limited bandwidth for tactical communications and can act as relays over battlefields.
Dennis Agnew, Alvaro Del Aguila, Janise Mcnair   +2 more
doaj   +1 more source

A Contribution to Secure the Routing Protocol "Greedy Perimeter Stateless Routing" Using a Symmetric Signature-Based AES and MD5 Hash

, 2011
This work presents a contribution to secure the routing protocol GPSR (Greedy Perimeter Stateless Routing) for vehicular ad hoc networks, we examine the possible attacks against GPSR and security solutions proposed by different research teams working on ...
Erritali, Mohammed, Ouahidi, Bouabid El, Reda, Oussama Mohamed   +2 more
core   +1 more source