Results 41 to 50 of about 1,263,266 (290)

Measurement based modeling and validation of wireless MIMO channel models [PDF]

open access: yesОмский научный вестник, 2018
This paper addresses measurement based wireless MIMO channel modeling and validation based MIMO channel on sounding data. Measurement is carried out in indoor laboratory environment at central frequency 2,3 GHz with measurement bandwidth 100 MHz, 4 ...
A. A. Kalachikov, N. S. Shelkunov
doaj   +1 more source

Methodological Support for Applying the Method of Majority Reservation in Measuring Channels

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2021
Introduction. For hazardous industries, the reliability of information and measuring equipment must ensure an almost complete absence of failure events, with their probability as low as 10-6.
N. V. Minchev
doaj   +1 more source

Approximate reversibility in the context of entropy gain, information gain, and complete positivity [PDF]

open access: yes, 2016
There are several inequalities in physics which limit how well we can process physical systems to achieve some intended goal, including the second law of thermodynamics, entropy bounds in quantum information theory, and the uncertainty principle of ...
67017   +5 more
core   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Channel sounder measurement verification:

open access: yes, 2020
Channel modeling often provides a basis for the design and deployment of wireless technology. Engineers design systems to operate under certain expected channel conditions. Channel models are typically based on the statistics of a collection of many measurements performed by channel sounders in nominally similar radio-propagation environments. In 2016,
Jeanne Quimby   +17 more
openaire   +1 more source

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

open access: yesFEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson   +7 more
wiley   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Is mmWave Ready for Cellular Deployment?

open access: yesIEEE Access, 2017
The wireless capacity crunch will undoubtedly continue as new innovative applications emerge, for instance, augmented reality and massive machine type communications.
Siming Zhang, Guizhen Wang, Chih-Lin I
doaj   +1 more source

Three-dimensional laser velocimeter simultaneity detector [PDF]

open access: yes, 1990
A three-dimensional laser Doppler velocimeter has laser optics for a first channel positioned to create a probe volume in space, and laser optics and for second and third channels, respectively, positioned to create entirely overlapping probe volumes in ...
Brown, James L.
core   +1 more source

Reduction of Classical Measurement Noise via Quantum-Dense Metrology [PDF]

open access: yes, 2016
Quantum-dense metrology (QDM) constitutes a special case of quantum metrology in which two orthogonal phase space projections of a signal are simultaneously sensed beyond the shot noise limit.
Ast, Melanie   +2 more
core   +4 more sources

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