Results 81 to 90 of about 175,307,520 (292)

A Law of Large Numbers for Weighted Majority [PDF]

open access: yes, 2004
Consider an election between two candidates in which the voters ' choices are random and independent and the probability of a voter choosing the first candidate is p> 1/2.
H\ue4ggstr\uf6m, Olle   +6 more
core   +1 more source

Mechanistic Origins of Chemo‐Mechanical Instability and Failure in Solid‐State Lithium‐Sulfur Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Conversion‐induced sulfur expansion generates strong mechanical constraints and localized stresses within solid‐state Li‐S cathodes. Heterogeneous solid‐electrolyte confinement creates tensile strain‐energy hotspots that govern particle cracking. Larger sulfur particles accelerate fracture, while higher porosity relaxes constraint and delays damage ...
Arpan K. Sharma   +3 more
wiley   +1 more source

Weak Laws of Large Numbers in Normed Linear Spaces

open access: yesThe Annals of Mathematical Statistics, 1972
In this paper weak laws of large numbers are proved for random elements (function-valued random variables) in separable normed linear spaces. One result states that for identically distributed random elements $\{V_n\}$ such that the Pettis integral $EV_1$ exists and $E\|V_1\| < \infty$ $\|n^{-1} \sum^n_{k=1} V_k - EV_1\| \rightarrow 0 \text{in ...
openaire   +2 more sources

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri   +12 more
wiley   +1 more source

Guanosine‐Quadruplex Hydrogels as Dynamic, Mechanically Tunable and Ion Conductive 3D Scaffolds for Cell Culture Applications

open access: yesAdvanced Functional Materials, EarlyView.
Versatile guanosine‐quadruplex (GQ) hydrogels are developed as dynamic biomatrices for cell culture. These scaffolds are fabricated under mild aqueous conditions, present improved stability, tunable mechanical properties within physiological ranges; fibrillar, porous microstructure, ion conductivity, and cytocompatibility.
Neha Thakur   +10 more
wiley   +1 more source

Problems and alternative insurance agricultural production in Serbia [PDF]

open access: yesAnali Ekonomskog fakulteta u Subotici, 2015
Agriculture is one of the most important sectors in the economy of each country. Everything is directed towards food production, which is now the world's number one issue for both developed or developing countries as well as for underdeveloped.
Vojinović Željko   +2 more
doaj  

Managing Charge Transport and Exciton Generation for Highly Efficient, Bright, and Stable Near‐Infrared Organic Radical Light‐Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
High‐performing near‐infrared (NIR) organic light‐emitting diodes are demonstrated using an efficient and stable 800 nm‐emissive organic radical and a thermally activated delayed fluorescence (TADF) host. TADF‐assisted exciton generation combined with improved charge transport enables high external quantum efficiency (>8%), high radiance (>70,000 mW sr−
Hwan‐Hee Cho   +6 more
wiley   +1 more source

Law of large numbers and ergodic theorem for convex weak star compact valued Gelfand-integrable mappings

open access: yes, 2013
International audienceWe prove several results in the integration of convex weak star (resp.~norm compact) valued random sets with application to weak star Kuratowski convergence in the law of largenumbers for convex norm compact valued Gelfand ...
C. Castaing   +3 more
core   +1 more source

How walls shape dissipation intermittency

open access: yesPhysical Review Research
Intermittency of energy dissipation has long been studied via high-order moments in homogeneous and isotropic turbulence (HIT), but not much where the boundary effects are explicitly included.
Peng-Yu Duan   +2 more
doaj   +1 more source

Self‐Powered, Ultra‐Sensitive InGaAs/ITO Nanowire Radial Junction Infrared Photodiode for Low Flux Imaging at Room Temperature

open access: yesAdvanced Functional Materials, EarlyView.
This study reports a self‐powered InGaAs nanowire photodetector achieving single‐photon‐level sensitivity in the shortwave infrared at non‐cryogenic temperatures. The device demonstrates high‐speed imaging capabilities even under extremely low‐flux conditions.
Kosala Dhanawansha   +10 more
wiley   +1 more source

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