Results 41 to 50 of about 1,939,796 (296)

Stochastic Analysis of Non-slotted Aloha in Wireless Ad-Hoc Networks [PDF]

open access: yes, 2010
In this paper we propose two analytically tractable stochastic models of non-slotted Aloha for Mobile Ad-hoc NETworks (MANETs): one model assumes a static pattern of nodes while the other assumes that the pattern of nodes varies over time.
Blaszczyszyn, Bartek, Muhlethaler, Paul
core   +8 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Study on Nature Fiber Composite for Noise Material Control

open access: yesInternational Journal of Technology
Transportation tracks of railways and highways are the highest noise pollution contribution to the inhabitant urban due to the sources near residential areas. Many researchers proved that the composite material could help reduce the noise by 30%. This
Muhammad Zulkarnain   +5 more
doaj   +1 more source

Transmission Loss of Phase-Shifted Fiber Bragg Gratins in Lossy Materials: A Theoretical and Experimental Investigation [PDF]

open access: yes, 2007
Narrow linewidth transmission filters in lossy materials based phase-shifted fiber Bragg gratings have been investigated experimentally and analytically.
Lit, John W.Y., Liu, Yu, Wei, Li
core   +1 more source

Modeling Cascading Failures in the North American Power Grid [PDF]

open access: yes, 2004
The North American power grid is one of the most complex technological networks, and its interconnectivity allows both for long-distance power transmission and for the propagation of disturbances.
Albert   +28 more
core   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Design and Testing of a Gasoline Engine Muffler Based on the Principle of Split-Stream Rushing

open access: yesApplied Sciences
In order to reduce the exhaust noise, which is the main source of gasoline engine noise, this paper uses on orthogonal test to optimize the parameters of the main structure of split-stream rushing muffler (the perforation rate of the perforated pipe ...
Shiyi Ao   +7 more
doaj   +1 more source

Spin-memory loss at Co/Ru interfaces

open access: yes, 2011
We have determined the spin-memory-loss parameter, $\delta_{Co/Ru}$, by measuring the transmission of spin-triplet and spin-singlet Cooper pairs across Co/Ru interfaces in Josephson junctions and by Current-Perpendicular-to-Plane Giant Magnetoresistance (
A. I. Buzdin   +5 more
core   +1 more source

Mirror reflectometer based on optical cavity decay time [PDF]

open access: yes, 1984
Described is a reflectometer capable of making reflectivity measurements of low-loss highly reflecting mirror coatings and transmission measurements of low-loss antireflection coatings.
Anderson, Dana Z.   +2 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

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