Results 11 to 20 of about 527,575 (266)

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   +1 more source

Analysis of Dynamic Characteristics of an Ultra-Large Semi-Submersible Floating Wind Turbine

open access: yesJournal of Marine Science and Engineering, 2019
An initial design of the platform for the moderate water depth (100 m) is performed by upscaling of an existing 5 MW braceless semi-submersible platform design to support the DTU (Danish University of Science and Technology) 10 MW wind turbine.
Zhixin Zhao   +3 more
doaj   +1 more source

Egg-shaped bounding surface model for saturated soft clay

open access: yesYantu gongcheng xuebao, 2020
In order to describe the dynamic characteristics of saturated soft clay under cyclic loading, an egg-shaped one-sided bounding surface model is established.
XU Ri-qing 1, 2, 3, JU Lu-ying 1, 2, YU Jian-lin 1, 2, JIANG Jia-qi 1, 2, DING Pan 1, 2
doaj   +1 more source

Dynamic characteristics of oxygen consumption [PDF]

open access: yesBioMedical Engineering OnLine, 2018
Previous studies have indicated that oxygen uptake ([Formula: see text]) is one of the most accurate indices for assessing the cardiorespiratory response to exercise. In most existing studies, the response of [Formula: see text] is often roughly modelled as a first-order system due to the inadequate stimulation and low signal to noise ratio.
Ye, Lin   +5 more
openaire   +4 more sources

Dynamic Characteristics of Metal Seals in Roller Cone Bits

open access: yesLubricants, 2022
During the drilling process, the sealing performance of the roller cone bits is severely challenged by the complex downhole environment and frequent vibrations.
Yi Ma   +4 more
doaj   +1 more source

Dynamic Stability Characteristics of Aircraft and Dynamics of Pilot

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 2002
Dynamics of pilot was studied quantitatively in relation to the change of dynamic stability characteristics of aircraft. Three pilot conducted bank control on flight simulator which simulate aircraft dynamics with large variety of dutch roll characteristics, and data was acquired.
KATO, Akio   +2 more
openaire   +3 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

Dynamic Characteristics in the Nearshore Area

open access: yesCoastal Engineering 1980, 1980
A detailed discussion is made on the dynamic characteristics of waves and wave-induced currents in the nearshore area by using the laboratory and field investigation data collected during the last few years. The main purposes of this paper are to get the insight on the precise mechanism of the nearshore dynamic phenomena and to evaluate critically the ...
Kiyoshi Horikawa, Masahiko Isobe
openaire   +2 more sources

Dynamic Characteristic Analysis of Permanent Magnet Brushless DC Motor System with Rolling Rotor

open access: yesApplied Sciences, 2022
With the wide application of permanent magnet brushless DC motors (BLDCMs) in home appliances and electric vehicles, there is increasing demand for BLDCMs with low vibration and noise.
Yi Wan   +4 more
doaj   +1 more source

Characteristics of the Dynamic of Mobile Networks [PDF]

open access: yes, 2010
We propose in this paper a novel framework for the study of dynamic mobility networks. We address the characterization of dynamics by proposing an in-depth description and analysis of two real-world data sets. We show in particular that links creation and deletion processes are independent of other graph properties and that such networks exhibit a ...
Borgnat, Pierre   +3 more
openaire   +2 more sources

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