Results 51 to 60 of about 1,052,636 (277)

Relative importance of crystal field versus bandwidth to the high pressure spin transition in transition metal monoxides

open access: yes, 2009
The crystal field splitting and d bandwidth of the 3d transition metal monoxides MnO, FeO, CoO and NiO are analyzed as a function of pressure within density functional theory.
Cohen R   +4 more
core   +1 more source

Process‐Informed Analysis of As‐Built Metal Additive Surface Features

open access: yesAdvanced Engineering Materials, EarlyView.
This article introduces a novel method for feature‐based surface texture characterisation directly incorporating manufacturing variables into the feature extraction workflow. This marks a major step towards identifying process‐specific surface properties and their influence on part function and hence a holistic understanding of process–structure ...
Theresa Buchenau   +5 more
wiley   +1 more source

Active temporal multiplexing of indistinguishable heralded single photons

open access: yesNature Communications, 2016
Deterministically generated single photons are useful for quantum communications, but the processes that create such light are often non-deterministic.
C. Xiong   +10 more
doaj   +1 more source

TWO ELEMENT MICROSTRIP ANTENNA ARRAY USING STAR SLOT ELECTROMAGNETIC BAND GAP STRUCTURE [PDF]

open access: yesJournal of Engineering Science (Chişinău), 2019
This paper deals with the performance of two element antenna array without and with electromagnetic band gap structures. The antenna arrays are using Mentor Graphics IE3D software and measurements have been taken using vector network analyzer.
Rao, K. Prahlada   +2 more
doaj   +1 more source

Broadband, High Efficiency OMT in E-Band

open access: yesIEEE Access, 2022
A high-performance, broadband E-Band orthomode transducer (OMT) was designed and fabricated for a dedicated frequency converter. Cross-polarized signals between 71 and 86 GHz, received in a TE11 mode circular waveguide needed to be split into separate ...
Gregory Peter Le Sage   +1 more
doaj   +1 more source

Making recommendations bandwidth aware

open access: yes, 2017
This paper asks how much we can gain in terms of bandwidth and user satisfaction, if recommender systems became bandwidth aware and took into account not only the user preferences, but also the fact that they may need to serve these users under bandwidth
Fragouli, Christina, Song, Linqi
core   +1 more source

Bandwidth of linearized electrooptic modulators [PDF]

open access: yes, 1998
Many schemes have been proposed to make high dynamic range analog radio frequency (RF) photonic links by linearizing the transfer function of the link's modulator. This paper studies the degrading effects of finite transit time and optical and electrical
Bridges, William B., Cummings, Uri V.
core   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer   +3 more
wiley   +1 more source

Circumventing spontaneous Raman noise in a correlated photon pair source

open access: yesAPL Photonics, 2016
We propose a dual-pump third-order nonlinear scheme for producing pairs of correlated photons that is less susceptible to Raman noise than typical spontaneous four-wave mixing (SFWM) methods.
Daniel R. Blay, L. G. Helt, M. J. Steel
doaj   +1 more source

Bandwidth Borrowing Schemes for Instantaneous Video-on-Demand Systems [PDF]

open access: yes, 2004
A controlled multicast scheme provides instantaneous service, but limited server bandwidth causes some user requests to be either delayed or rejected when insufficient free bandwidth is available.
Azad, S., Dooley, L. S., Murshed, M.
core  

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