Results 91 to 100 of about 68,019 (304)

New families of subordinators with explicit transition probability semigroup

open access: yes, 2014
There exist only a few known examples of subordinators for which the transition probability density can be computed explicitly along side an expression for its Lévy measure and Laplace exponent.
Kuznetsov, Alexey   +10 more
core   +1 more source

Vacuum Formed Spherical Triboelectric Architecture Overcoming Direction Constraints for 3D‐Omnidirectional Ultrasonic Energy Receiving

open access: yesAdvanced Functional Materials, EarlyView.
First vacuum formed spherical triboelectric converter for 3D‐omnidirectional ultrasonic energy receiving, with configurable DC or pulse outputs for versatile applications. ABSTRACT Ultrasound‐driven triboelectric nanogenerators (UD‐TENGs) have emerged as promising ultrasonic energy converters for underwater and biomedical applications.
Yanqin Huang   +12 more
wiley   +1 more source

The Fog Covering Cantor's Paradise: Some Paradoxes on Infinity and Continuum

open access: yes, 2021
We challenge Georg Cantor's theory about infinity. By attacking the concept of “countable/uncountable” and diagonal argument, we reveal the uncertainty, which is obscured by the lack of clarity.
Ke Zhang (11515936)
core   +1 more source

Nanoengineered Binetworks in Multifunctional Anionic Block Polymer Mesoblends for Improved Mechanical Properties

open access: yesAdvanced Functional Materials, EarlyView.
Mesoblends consist of a nanostructured polymer into which a second polymer is imbibed with a selective solvent. In this work, a solvent‐templatable pentablock terpolymer possessing a sulfonated midblock is modified with a hydrophilic polymer that is photocrosslinked in situ, yielding a hierarchical binetwork.
Kacie M. Wells   +3 more
wiley   +1 more source

Waveform stability for the piecewise step approximation of Regge–Wheeler potential

open access: yesEuropean Physical Journal C: Particles and Fields
By interpreting the difference between the original Regge–Wheeler potential and its piecewise step approximation as perturbative effects induced by the external environment of the black hole, we investigate the stability of Schwarzschild black hole time ...
Liang-Bi Wu   +4 more
doaj   +1 more source

Some mathematical concepts related to infinity

open access: yes, 2018
This article deals with the concept of infinity in its general form and an analysis about actual infinity and potential infinity is performed. Two demonstrations are performed, the Archimedean property and an inequality by means of mathematical induction.
Buitrago C, Iván Darío   +2 more
core   +1 more source

Pressure at infinity and strong positive recurrence in negative curvature

open access: yes, 2023
In the context of geodesic flows of noncompact negatively curved manifolds, we propose three different definitions of entropy and pressure at infinity, through growth of periodic orbits, critical exponents of Poincar\'e series, and entropy (pressure) of ...
Tapie, Samuel   +4 more
core   +1 more source

Tailoring Li‐ion Storage and Transport in Two‐Dimensional Conjugated Metal‐Organic Frameworks via Precise Nitrogen Incorporation

open access: yesAdvanced Functional Materials, EarlyView.
Two nitrogen‐doped 2D conjugated metal‐organic frameworks (2D c‐MOFs, namely Cu‐Nx‐OHBA, x = 2 or 4) are synthesized, featuring precise nitrogen incorporation via rational ligand design. The Cu‐Nx‐OHBA 2D c‐MOFs are largely tailorable by varying skeletal nitrogen density, with respect to electrical conductivity, Li‐storage capacitance, and Li‐transport
Xiangyu Li   +7 more
wiley   +1 more source

Philosophical Reflections on Mathematical Infinity [PDF]

open access: yes
The concept of infinity has long occupied a central place at the intersection of mathematics and philosophy. This paper explores the multifaceted concept of infinity, beginning with its mathematical foundations, distinguishing between potential and ...
Iftikar, Irhan
core   +1 more source

On an elliptic equation of Kirchhoff-type with a potential asymptotically linear at infinity

open access: yesMathematical and Computer Modelling, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ahmed Bensedik, Mohammed Bouchekif
openaire   +1 more source

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