Results 61 to 70 of about 8,305,018 (234)

A Simple Panel Unit Root Test in the Presence of Cross Section Dependence [PDF]

open access: yes, 2003
A number of panel unit root tests that allow for cross section dependence have been proposed in the literature, notably by Bai and Ng (2002), Moon and Perron (2003) and Phillips and Sul (2002) who use orthogonalization type procedures to asymptotically
M. Hashem Pesaran
core   +2 more sources

Stability analysis of complex intersection point and supporting technology of concrete-filled steel tube pier column group

open access: yesMeitan xuebao
Roadway intersection point are critical in underground mining and significantly impact mine safety. To address challenges such as large unsupported roof areas, concentrated stress, and difficult support in deep complex intersection point, a study is ...
Jun WANG   +7 more
doaj   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

Wally and the Major [picture] : cross purposes /

open access: yes, 1970
Part of the Stan Cross Archive of cartoons and drawings, 1912-1974.; Inscription: "Stan Cross 70/24"--In ink, lower right. "9205 Wed Jan 28. Cross Purposes"--In ink, right margin; "9205"--In pencil, upper right corner.; Also available in an electronic ...
Cross, Stan, 1888-1977.
core  

Development of an anisotropic co-rotational beam model including variable cross-section

open access: yes, 2022
The aim of this article is to expand the general approach of the flexible beam model to consider tapered geometry and anisotropic properties by updating the cross-sectional stiffness matrix.
Taeseong Kim (5516717)   +3 more
core   +3 more sources

Seismic Performance and Moment–Rotation Relationship Modeling of Novel Prefabricated Frame Joints

open access: yesBuildings
This study investigates two novel prefabricated frame joints: prestressed steel sleeve-connected prefabricated reinforced concrete joints (PSFRC) and non-prestressed steel sleeve-connected prefabricated reinforced concrete joints (SSFRC).
Jiaqi Liu   +6 more
doaj   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

open access: yesAdvanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle   +5 more
wiley   +1 more source

Wally and the Major [picture] : cross purposes /

open access: yes, 1968
Part of the Stan Cross Archive of cartoons and drawings, 1912-1974.; Inscription: "Stan Cross 8/195"--In ink, lower right. "8757 Fri Aug 16 Cross Purposes"--In ink, right margin; "8757"--In pencil, upper right corner; "6"--In pencil, upper left corner ...
Cross, Stan, 1888-1977.
core  

Measurement of the low-mass Drell-Yan differential cross section at √s = 7 TeV using the ATLAS detector [PDF]

open access: yes, 2014
The differential cross section for the process Z/γ ∗ → ℓℓ (ℓ = e, μ) as a function of dilepton invariant mass is measured in pp collisions at s√ = 7 TeV at the LHC using the ATLAS detector.
Ramos, Jam   +999 more
core   +4 more sources

New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare   +5 more
wiley   +1 more source

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