Results 41 to 50 of about 46,100 (297)
This study demonstrates a novel, additive manufacturing approach to produce complex, porous tungsten carbide structures using water‐based direct ink writing/robocasting. Leveraging a modified commercial printer and heat treatment, the process yields lightweight, electrically conductive 3D architectures capable of supporting a mechanical load.
James Bentley Bevis +3 more
wiley +1 more source
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 +2 more
doaj +1 more source
Avoiding Black Hole and Cooperative Black Hole Attacks in Wireless Ad hoc Networks
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
How well can ultracompact bodies imitate black hole ringdowns?
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
Stationary scalar and vector clouds around Kerr-Newman black holes
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
A near infrared‐responsive microscale cantilever is developed using a 3D‐printable composite based on photocurable resin consisting of sepiolite and graphene flakes. The material absorbs 1064 nm light, causing shape transformation with an average displacement of 1.3 mm in 1.7 s. Displacement is measured via video recording.
Karolina Laszczyk +3 more
wiley +1 more source
The evaluation of luminance in a road tunnel based on CIE88-2004 standard to reduce road accidents
Background and aims: Traffic safety is a major concern all around the world. About 1.5 million people die each year from road accidents and 50 million are injured.
Ahmad Mehri +7 more
doaj
A Review on Black Hole Attack in Mobile Adhoc Network
Mobile ad hoc network is selfconfiguring and infrastructure less network. Due to its dynamic nature, it is more susceptible to severe type of attacks. An assortment of attacks is there to mischief the dexterous working of MANET. One of these attacks is the Black Hole attack which leads to dropping of messages.
Vimal Dhote, Jyoti Sondhi, Anand Motwani
openaire +2 more sources
The tidal deformability of a self-gravitating object leaves an imprint on the gravitational-wave signal of an inspiral which is paramount to measure the internal structure of the binary components.
Maselli, Andrea, Pani, Paolo
core +1 more source
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov +8 more
wiley +1 more source

