Results 21 to 30 of about 3,031,498 (306)

Reinforcement-learning-based parameter adaptation method for particle swarm optimization

open access: yesComplex & Intelligent Systems, 2023
Particle swarm optimization (PSO) is a well-known optimization algorithm that shows good performances in solving different optimization problems. However, the PSO usually suffers from slow convergence.
Shiyuan Yin   +6 more
doaj   +1 more source

Research on Hysteretic Performance of Q690 High Strength Steel High-Web Box-Section Steel Column [PDF]

open access: yesE3S Web of Conferences, 2021
In this paper, the finite element simulation software ABAQUS was used to study the hysteretic performance of Q690 high-strength steel (HSS) and high-web box-section steel columns.
Sun Jianpeng   +3 more
doaj   +1 more source

External memory: High speed, low speed, and no speed [PDF]

open access: yesBehavior Research Methods & Instrumentation, 1981
This paper describes potential constraints on the selection of external memory devices (stimulus sources) and suggests options available to the would-be user of such systems for estimating research requirements and the functional parameters of the available external memory devices.
openaire   +1 more source

Understanding temporal rhythms and travel behaviour at destinations: Potential ways to achieve more sustainable travel [PDF]

open access: yes, 2013
This paper analyses the roles played by time in destination-based travel behaviour. It contrasts clock time's linear view of time with fragmented time, instantaneous time, fluid time and flow, time out and the multiple temporalities of tourism ...
Norgate, S.   +18 more
core   +1 more source

Influence of Humidity State on Dynamic Resilient Modulus of Subgrade Soils: Considering Repeated Wetting-Drying Cycles

open access: yesAdvances in Materials Science and Engineering, 2021
The service performance of subgrade depends on the dynamic resilient modulus (MR) of subgrade soils. Meanwhile, due to complicated conditions such as rainfall infiltration, high temperature evaporation, and groundwater level fluctuations, it can be ...
Gongfeng Xin   +4 more
doaj   +1 more source

Chatter Control by Spindle Speed Variation in High-Speed Milling [PDF]

open access: yes, 2009
High-speed milling operations are often limited by regenerative vibrations. The aim of this paper is to analyze the effect of spindle speed variation on machine tool chatter in high-speed milling. The stability analysis of triangular and sinusoidal shape
Arnaud, Lionel   +3 more
core   +1 more source

Research on Cumulative Deformation Characteristics of Subgrade Filling under Cyclic Train Loading

open access: yesShock and Vibration, 2022
The smoothness of high-speed railway is extremely strict. As an important part of the high-speed railway foundation, the subgrade structure has strict deformation requirements.
Junkai Yao   +4 more
doaj   +1 more source

Suppression of period doubling chetter in high-speed milling by spindle speed variation [PDF]

open access: yes, 2011
Spindle speed variation is a well known technique to suppress regenerative machine tool vibra- tions, but it is usually considered to be effective only for low spindle speeds.
Arnaud, Lionel   +9 more
core   +1 more source

On the stability of high-speed milling with spindle speed variation [PDF]

open access: yes, 2010
Spindle speed variation is a well-known technique to suppress regenerative machine tool vibrations, but it is usually considered to be effective only for low spindle speeds.
Arnaud, Lionel   +4 more
core   +1 more source

Speeding strings [PDF]

open access: yesJournal of High Energy Physics, 2003
v3: added a reference to the earlier ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy