Results 1 to 10 of about 13 (13)

Mobility strategies based on percolation theory to avoid the spread of diseases: COVID-19 [PDF]

Revista Mexicana de F\'isica 68 011701 1-12 2022, 2021
Human mobility is an important factor in the propagation of infectious diseases. In particular, the spatial spread of a disease is a consequence of human mobility. On the other hand, the control strategies based on mobility restrictions are generally unpopular and costly.
arxiv   +1 more source

Dielectric microscopy with submillimeter resolution [PDF]

Applied Physics Letters, 91, 222909 (2007), 2007
In analogy with optical near-field scanning methods, we use tapered dielectric waveguides as probes for a millimeter wave vector network analyzer. By scanning thin samples between two such probes we are able to map the spatially varying dielectric properties of materials with sub-wavelength resolution; using a 150 GHz probe in transmision mode we see ...
arxiv   +1 more source

Elephant Flows Detection Using Deep Neural Network, Convolutional Neural Network, Long Short Term Memory and Autoencoder [PDF]

, 2023
Currently, the wide spreading of real-time applications such as VoIP and videos-based applications require more data rates and reduced latency to ensure better quality of service (QoS). A well-designed traffic classification mechanism plays a major role for good QoS provision and network security verification.
arxiv   +1 more source

Quasiparticle Interface States in Junctions Involving d-Wave Superconductors [PDF]

Phys. Rev. B, v. 61, p. 678 (2000), 1999
Influence of surface pair breaking, barrier transmission and phase difference on quasiparticle bound states in junctions with d-wave superconductors is examined. Based on the quasiclassical theory of superconductivity, an approach is developed to handle interface bound states.
arxiv   +1 more source

Lorentz-covariant quantum mechanics and preferred frame [PDF]

Phys.Rev. A59 (1999) 4187-4196, 1998
In this paper the relativistic quantum mechanics is considered in the framework of the nonstandard synchronization scheme for clocks. Such a synchronization preserves Poincar{\'e} covariance but (at least formally) distinguishes an inertial frame. This enables to avoid the problem of a noncausal transmision of information related to breaking of the ...
arxiv   +1 more source

Aplicación de redes neuronales convolucionales profundas al diagnóstico asistido de la enfermedad de Alzheimer [PDF]

arXiv, 2022
Currently, the diagnosis of Alzheimer's disease is a complex and error-prone process. Improving this diagnosis could allow earlier detection of the disease and improve the quality of life of patients and their families. For this work, we will use 249 brain images from two modalities: PET and MRI, taken from the ADNI database, and labelled into three ...
arxiv  

Imaging and Dynamics of Light Atoms and Molecules on Graphene [PDF]

Nature vol. 454 p. 319-322 (2008), 2008
Observing the individual building blocks of matter is one of the primary goals of microscopy. The invention of the scanning tunneling microscope [1] revolutionized experimental surface science in that atomic-scale features on a solid-state surface could finally be readily imaged.
arxiv   +1 more source

Entanglement generation and quantum information transfer between spatially-separated qubits in different cavities [PDF]

New Journal of Physics 15 (2013) 115003, 2013
The generation and control of quantum states of spatially-separated qubits distributed in different cavities constitute fundamental tasks in cavity quantum electrodynamics. An interesting question in this context is how to prepare entanglement and realize quantum information transfer between qubits located at different cavities, which are important in ...
arxiv   +1 more source

El impacto del buffer en la calidad de servicio [PDF]

arXiv, 2021
The response in data flows transmission in real time is analyzed, for access network scenarios, in which said flows converge on an outgoing link, competing to achieve a certain level of quality of service. The concurrence of these types of flows can generate bursts of packets, which in certain circumstances can compromise the capacity of the buffers to
arxiv  

Structural Vulnerability of the North American Power Grid [PDF]

, 2004
The magnitude of the August 2003 blackout affecting the United States has put the challenges of energy transmission and distribution into limelight. Despite all the interest and concerted effort, the complexity and interconnectivity of the electric infrastructure have so far precluded us from understanding why certain events happened.
arxiv   +1 more source