Results 11 to 20 of about 102,318 (263)

Limits to scaling relations between adsorption energies?

open access: yes, 2022
Linear scaling relations have led to an understanding of trends in catalytic activity and selectivity of many reactions in heterogeneous and electro-catalysis. Yet, linear scaling between the chemisorption energies of any two small molecule adsorbates is
Karen, Chan   +3 more
core   +1 more source

Optimal scaling and diffusion limits for the Langevin algorithm in high dimensions [PDF]

open access: yes, 2011
The Metropolis-adjusted Langevin (MALA) algorithm is a sampling algorithm which makes local moves by incorporating information about the gradient of the target density. In this paper we study the efficiency of MALA on a natural class of target measures
Thiéry, Alexandre H.   +3 more
core   +1 more source

Earth’s Complexity Is Non-Computable: The Limits of Scaling Laws, Nonlinearity and Chaos

open access: yesEntropy, 2021
Current physics commonly qualifies the Earth system as ‘complex’ because it includes numerous different processes operating over a large range of spatial scales, often modelled as exhibiting non-linear chaotic response dynamics and power scaling laws ...
Sergio Rubin, Michel Crucifix
doaj   +1 more source

Theoretical limits of scaling-down internal combustion engines [PDF]

open access: yes, 2010
Small-scale energy conversion devices are being developed for a variety of applications; these include propulsion units for micro aerial vehicles (MAV). The high specific energy of hydrocarbon and hydrogen fuels, as compared to other energy storing means,
Sher, E., Sher, Ilai, I. Sher, E. Sher
core   +1 more source

CMSSW Scaling Limits on Many-Core Machines [PDF]

open access: yesEPJ Web of Conferences
Today the LHC offline computing relies heavily on CPU resources, despite the interest in compute accelerators, such as GPUs, for the longer term future.
Jones Christopher, Gartung Patrick
doaj   +1 more source

On the intertwining between capacity scaling and TCP congestion control [PDF]

open access: yes, 2012
Recent works advocate the possibility of improving energy efficiency of network devices by modulating switching and transmission capacity according to traffic load.
Alfio Lombardo   +11 more
core   +1 more source

Scaling limits of dS vacua and the swampland

open access: yesJournal of High Energy Physics, 2019
We discuss the properties of massive type IIA flux compactifications. In particular, we investigate in which case one can obtain dS vacua at large volume and small coupling.
Andreas Banlaki   +3 more
doaj   +1 more source

Kibble-Zurek scaling in quantum speed limits for shortcuts to adiabaticity

open access: yesPhysical Review Research, 2020
Geometric quantum speed limits quantify the tradeoff between the rate at which quantum states can change and the resources that are expended during the evolution. Counterdiabatic driving is a unique tool from shortcuts to adiabaticity to speed up quantum
Ricardo Puebla   +2 more
doaj   +1 more source

Exact Derivation of a Finite-Size Scaling Law and Corrections to Scaling in the Geometric Galton-Watson Process. [PDF]

open access: yesPLoS ONE, 2016
The theory of finite-size scaling explains how the singular behavior of thermodynamic quantities in the critical point of a phase transition emerges when the size of the system becomes infinite. Usually, this theory is presented in a phenomenological way.
Álvaro Corral   +2 more
doaj   +1 more source

Scaling limits for infinite-server systems in a random environment

open access: yesStochastic Systems, 2017
This paper studies the effect of an overdispersed arrival process on the performance of an infinite-server system. In our setup, a random environment is modeled by drawing an arrival rate Λ from a given distribution every Δ time units, yielding an i.i.d.
Mariska Heemskerk   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy