Results 11 to 20 of about 7,614,932 (143)

The Impact of QoS Constraints on the Energy Efficiency of Fixed-Rate Wireless Transmissions [PDF]

open access: yes, 2008
Transmission over wireless fading channels under quality of service (QoS) constraints is studied when only the receiver has channel side information. Being unaware of the channel conditions, transmitter is assumed to send the information at a fixed rate.
Gursoy, Mustafa Cenk   +2 more
core   +4 more sources

Entangled Scalar and Tensor Fluctuations during Inflation

open access: yes, 2016
We show how the choice of an inflationary state that entangles scalar and tensor fluctuations affects the angular two-point correlation functions of the $T$, $E$, and $B$ modes of the cosmic microwave background. The propagators for a state starting with
Collins, Hael, Vardanyan, Tereza
core   +1 more source

Affective Disorders of the State: A Spinozan Diagnosis and Cure [PDF]

open access: yes, 2013
The problems of contemporary states are in large part “affective disorders”; they are failures of states to properly understand and coordinate the emotions of the individuals within and in some instances outside the state.
Tucker, Ericka L
core   +1 more source

Coherence resource power of isocoherent states

open access: yesScientific Reports, 2021
AbstractWe address the problem of comparing quantum states with the same amount of coherence in terms of their coherence resource power given by the preorder of incoherent operations. For any coherence measure, two states with null or maximum value of coherence are equivalent with respect to that preorder. This is no longer true for intermediate values
Marcelo Losada   +3 more
openaire   +6 more sources

A comparison of the fast timing behaviour of 4U 1705-44 to that of 4U 1608-52 and Cyg X-1 [PDF]

open access: yes, 1998
We studied the fast timing behaviour of the atoll source 4U 1705-44 using the entire EXOSAT dataset, four observations covering a total of 230,000 seconds of 1-20 keV spectral and timing data. In one of the observations, 4U 1705-44 was in a low intensity
Berger, M., van der Klis, M.
core   +1 more source

Data-Driven Power Control for State Estimation: A Bayesian Inference Approach

open access: yes, 2015
We consider sensor transmission power control for state estimation, using a Bayesian inference approach. A sensor node sends its local state estimate to a remote estimator over an unreliable wireless communication channel with random data packet drops ...
Lau, Vincent   +4 more
core   +2 more sources

Solid-state Isotopic Power Source for Computer Memory Chips [PDF]

open access: yes, 1993
Recent developments in materials technology now make it possible to fabricate nonthermal thin-film radioisotopic energy converters (REC) with a specific power of 24 W/kg and a 10 year working life at 5 to 10 watts.
Brown, Paul M.
core   +1 more source

Initial condition of scalar perturbation in inflation

open access: yes, 2002
A formula for the power spectrum of curvature perturbations having any initial conditions in inflation is obtained. Based on the physical conditions before inflation, the possibility exists that the initial state of scalar perturbations is not only the ...
  +23 more
core   +1 more source

Rechargeable, silver-zinc battery conditioner/monitor unit and state-of-charge indicator [PDF]

open access: yes, 1974
Unit automatically charges batteries to desired state-of-charge levels, monitors functional battery parameter data both on meters and printer, and automatically activates alarm in event of battery malfunctions.
Thomas, C. E.
core   +1 more source

An energy-based state observer for dynamical subsystems with inaccessible state variables [PDF]

open access: yes, 2012
This work presents an energy-based state estimation formalism for a class of dynamical systems with inaccessible/ unknown outputs, and systems at which sensor utilization is impractical, or when measurements can not be taken.
Misra, Sarthak   +3 more
core  

Home - About - Disclaimer - Privacy