Results 1 to 10 of about 2,017,097 (307)

INFLUENCE OF CHANGES IN THE WORKING TEMPERATURE OF FLEXIBLE COUPLINGS ON THEIR STIFFNESS CHARACTERISTICS [PDF]

open access: yesTransport Problems, 2022
This article compares flexible couplings of the spider-type insert, and the tire-type insert. The influences of the volume and hardness of the elastomeric connector on the characteristics of this type of coupling, as well as the course of the change of ...
Tadeusz OPASIAK   +3 more
doaj   +1 more source

Study on the Stiffness and Dynamic Characteristics of a Bridge Approach Zone: Tests and Numerical Analyses

open access: yesMathematics, 2023
This study focuses on the stiffness and dynamic characteristic rules of a bridge approach zone in a high-speed railway (HSR). Indoor and in situ tests were performed to explore the stiffness and dynamic characteristics of the roadbed filling.
Ping Hu   +5 more
doaj   +1 more source

Dynamic Characteristics and Stability of the Photovoltaic Cell Under Laser Intensity or Load Disturbance in Laser Wireless Power Transmission System

open access: yesIEEE Access, 2023
In laser wireless power transmission (LWPT) system, the dynamically varying laser intensity or load on the photovoltaic (PV) cell may result in significant decrease of the power, efficiency and stability.
Zhenyang Xiong   +4 more
doaj   +1 more source

Moisture Assessment of Oil-Immersed Paper Based on Dynamic Characteristics of Frequency Domain Spectroscopy

open access: yesIEEE Access, 2022
In on-site measurement, as the transformer’s structure is often unknown, the application of frequency domain spectroscopy (FDS) is greatly limited in moisture assessment of transformer.
Qingchuan Xu   +3 more
doaj   +1 more source

Experimental Study of Dynamic Characteristics of Tailings With Different Reconsolidation Degrees After Liquefaction

open access: yesFrontiers in Earth Science, 2022
The construction period of most tailing ponds generally lasts for more than 10 years or even decades. During this period, it may be affected by more than one earthquake and is often subjected to vibrations generated by mining activities.
Wensong Wang   +8 more
doaj   +1 more source

Algorithms for analysis of stability and dynamic characteristics of signal generators at the physical level in FANET networks [PDF]

open access: yesMATEC Web of Conferences, 2020
To ensure the reliability of the physical level of Flying Ad Hoc Networks (FANET), the article substantiates the relevance of the study of stability and dynamic processes of signal formation and processing paths in the terminal and intermediate network ...
Vasilyev Gleb S.   +3 more
doaj   +1 more source

Dynamic Performance Improvement of Solenoid Screw-In Cartridge Valve Using a New Hybrid Voltage Control

open access: yesMachines, 2022
Digital hydraulic technology as an emergent and important branch of fluid power offers good prospects for intelligence, integration, and energy saving of hydraulic systems.
Zengguang Liu   +5 more
doaj   +1 more source

Integration of Wavelet Denoising and HHT Applied to the Analysis of Bridge Dynamic Characteristics

open access: yesApplied Sciences, 2020
When the dynamic characteristics of a bridge structure are analyzed though Hilbert–Huang transform (HHT), the noise contained in the bridge dynamic monitoring data may seriously affect the performance of the first natural frequency identification. A time-
Xinpeng Wang   +4 more
doaj   +1 more source

Dynamic normal forms and dynamic characteristic polynomial

open access: yesTheoretical Computer Science, 2008
We present the first fully dynamic algorithm for computing the characteristic polynomial of a matrix. In the generic symmetric case our algorithm supports rank-one updates in O(n^2 log n) randomized time and queries in constant time, whereas in the general case the algorithm works in O(n^2 k log n) randomized time, where k is the number of invariant ...
Frandsen, Gudmund Skovbjerg   +1 more
openaire   +2 more sources

A characteristic dynamic mode decomposition [PDF]

open access: yesTheoretical and Computational Fluid Dynamics, 2019
Temporal or spatial structures are readily extracted from complex data by modal decompositions like Proper Orthogonal Decomposition (POD) or Dynamic Mode Decomposition (DMD). Subspaces of such decompositions serve as reduced order models and define either spatial structures in time or temporal structures in space.
Sesterhenn, Jörn, Shahirpour, Amir
openaire   +2 more sources

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