Results 41 to 50 of about 4,734 (200)
A New Padé Approach to Modeling Wormholes in Dekel‐Zhao Dark Matter Halos
A matter‐first Padé strategy is introduced to build traversable wormholes from prescribed dark‐matter halos. Rational Padé fits approximately the Dekel–Zhao density and are analytically integrated to obtain a shape function that exactly reproduces the intended matter content, avoiding spurious poles of geometry‐first schemes.
Jonathan Alves Rebouças +4 more
wiley +1 more source
On the Ground State of Quantum Gravity
In order to gain insight into the possible Ground State of Quantized Einstein's Gravity, we have devised a variational calculation of the energy of the quantum gravitational field in an open space, as measured by an asymptotic observer living in an ...
Arnowitt +11 more
core +1 more source
Effects of Wormhole Attack on Routing Topology
The article is devoted to investigating the effects of wormhole attack on routing topology in Wireless Sensor Networks (WSNs). Currently, WSNs are increasingly vulnerable to numerous security attacks. One of the major attacks affecting WSNs involves a wormhole attack where attackers receive packets at a single end in the network and tunnel the packets ...
openaire +1 more source
Abstract We investigate how mineral dissolution reshapes flow pathways and solute transport in three‐dimensional discrete fracture networks using a computationally efficient graph‐based reactive transport model. The DFNs are inspired by field‐site observations of fractured carbonate and represent realistic connectivity and structural heterogeneity ...
Jeffrey D. Hyman +3 more
wiley +1 more source
Traversal time and hop count analysis (TTHCA) is a recent wormhole detection algorithm for mobile ad hoc networks (MANET) which provides enhanced detection performance against all wormhole attack variants and network types.
Jonny Karlsson +2 more
doaj +1 more source
Dissolution and Flow Channeling in Hydrate‐Bearing Sediments: Implications for Permeability
Abstract Estimates of in situ effective permeability of hydrate reservoirs are tens to hundreds of times less than most laboratory measurements on natural hydrate‐bearing sediments. The measured permeabilities are high because methane‐free water creates and expands flow channels in the sample during pressure core storage and laboratory testing.
Alejandro Cardona +3 more
wiley +1 more source
The quantum inequalities do not forbid spacetime shortcuts
A class of spacetimes (comprising the Alcubierre bubble, Krasnikov tube, and a certain type of wormholes) is considered that admits `superluminal travel' in a strictly defined sense.
A. E. Everett +18 more
core +1 more source
Proposed cyber physical system security framework. ABSTRACT The increasing adoption of cyber‐physical systems (CPS) in Industry 4.0 has heightened vulnerability to cyber threats. This study proposes a machine learning–based intrusion detection framework, DBID‐Net, to effectively identify and prevent attacks in CPS environments. The framework integrates
Anurag Sinha +14 more
wiley +1 more source
Research on Improved DV-HOP Algorithm against Wormhole Attacks in WSN
The secure location of node is significant in the WSN (Wireless Sensor Networks) of the troop frontier defence system. The wormhole attack is a big threat in the secure location.
Wang Xue-Wen +8 more
doaj +1 more source

