Results 21 to 30 of about 1,529,727 (337)

Theoretical and experimental training of nonlinear error separation in measurement systems [PDF]

open access: yesFanāvarī-i āmūzish, 2011
Surveying and identifying objectives are the first step to be taken in engineering educational programming, so that if carried out properly, a more objective basis for correlating educations with organizational needs will be achievable.
S. Olyaee, S. Hamedi
doaj   +1 more source

Penetration depth time history measurement method [PDF]

open access: yes, 2000
A new method for measuring the depth time history of rigid body penetration into brittle materials under a deceleration of ~10^5 g. The method includes: sabot-projectile, sabot-projectile separation and penetration depth detection systems.
Ahrens, T. J., Liu, C.
core   +1 more source

Deciding separability with a fixed error [PDF]

open access: yesPhysics Letters A, 2004
7 pages. To appear in Phys.
openaire   +2 more sources

Error Estimation and Error Reduction in Separable Monte-Carlo Method

open access: yesAIAA Journal, 2010
6) and using computationally expensive finite element models, makes Monte–Carlo simulations very expensive. This paper uses an improved sampling procedure for calculating the probability of failure, called separable Monte–Carlo method. The separable Monte– Carlo method can improve the accuracy of the traditional crude Monte–Carlo when response and ...
Bharani Ravishankar   +3 more
openaire   +1 more source

Vacuum Polarization of Massless Spinor Field in Global Monopole Spacetime [PDF]

open access: yes, 1999
We calculate the renormalized vacuum average of the energy-momentum tensor of massless left-handed spinor field in the pointlike global monopole spacetime using point-separation approach. The general structure of the vacuum average of the energy-momentum
A. Vilenkin   +20 more
core   +2 more sources

A Novel Detection Method for Workpiece Surface Morphology with Arbitrary Rotation Angles

open access: yesApplied Sciences
The spindle motion error significantly affects the surface quality and dynamic precision of machined workpieces. This study proposes a novel detection method for workpiece surface morphology with arbitrary rotation angles.
Guanyao Qiao, Ye Chen, Chunyu Zhao
doaj   +1 more source

Comparison of Current Five-Point Cylindricity Error Separation Techniques

open access: yesApplied Sciences, 2018
Cylindricity is a kind of three-dimensional form distortion of a cylinder. An accurate in situ measurement of cylindricity is relatively complex because measuring and reconstructing cylindrical profile and evaluating out-of-cylindricity should be ...
Wenwen Liu, Penghao Hu, Kuangchao Fan
doaj   +1 more source

A new calculation approach of wellbore separation factor based on the relative position of adjacent wells

open access: yesPetroleum Exploration and Development, 2020
As the current calculation methods for wellbore separation factor have some deficiencies, we propose and analyze a new calculation approach for wellbore separation factor based on the relative position of adjacent wellbores, named as relative position ...
Difeng HONG   +5 more
doaj   +1 more source

Separation of Overlapping Linear Frequency Modulated (LFM) Signals Using the Fractional Fourier Transform [PDF]

open access: yes, 2010
Linear frequency modulated (LFM) excitation combined with pulse compression provides an increase in SNR at the receiver. LFM signals are of longer duration than pulsed signals of the same bandwidth; consequently, in many practical situations, maintaining
Cowell, DMJ, Freear, S
core   +1 more source

A Separable Prediction Error Method for Robot Identification

open access: yesIFAC-PapersOnLine, 2016
The Prediction Error Method, developed in the field of system identification, handles the identification of discrete time noise model for systems linear with respect to the states and the parameters. However, robots are represented by continuous time models, which are not linear with respect to the states.
Brunot, Mathieu   +3 more
openaire   +2 more sources

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