Results 91 to 100 of about 1,085,425 (239)
Shock and Vibration, 2014 The modal parameters of a structure that is estimated from ambient vibration measurements are always subject to bias and variance errors. Accordingly the concept of the stabilization diagram is introduced to help users identify the correct model.
E. Mrabet, M. Abdelghani, N. Ben Kahla
doaj +1 more source
Stationarity of time series and the problem of spurious regression [PDF]
The goal of this paper was to introduce some general issues of non-stationarity for practitioners, students and beginning researchers. Using elementary techniques we examined the effect of non-stationary data on the results of regression analysis.
Lyócsa, Štefan, Baumöhl, Eduard
core
Giant Bulk Photovoltaic Effect in Two‐Dimensional Topological Ferroelectric Semimetal
Advanced Science, EarlyView.ABSTRACT Ferroelectric (FE) metals have attracted growing interest because they combine ferroelectricity with metallic behavior and enable polarization‐controlled band topology near the Fermi level. However, the number of known ferroelectric metals is still limited.
Jianhua Wang +8 more
wiley +1 more source
Advanced Science, EarlyView.Decoupling biological signals from unwanted variation in multi‑condition single‑cell RNA sequencing data remains challenging. CAPER disentangles condition‑associated biological effects from sample heterogeneity through matrix factorization, producing interpretable latent factors and a batch‑corrected expression matrix.
Ye Li +6 more
wiley +1 more source
Assessing Strengths and Limitations of Magnetoencephalography Source Imaging With Intracerebral EEG
Advanced Science, EarlyView.Simultaneous MEG and stereotactic EEG (SEEG) recordings provide a direct validation framework for MEG source imaging in focal epilepsy. Virtual SEEG signals derived from MEG reconstructions reveal significant agreement with intracranial measures of spike localization, resting‐state oscillations, and functional connectivity, while also identifying ...
Jawata Afnan +10 more
wiley +1 more source
LiTaO3‐ on‐YAG surface acoustic wave resonator with low TCF and spurious modes mitigation
Electronics LettersSurface acoustic wave (SAW) resonators employing LiTaO3 piezoelectric platelet on yttrium aluminium garnet (YAG) substrate are designed with a low temperature coefficient of frequency (TCF) and spurious modes suppression.
Ventsislav Yantchev +3 more
doaj +1 more source
Advanced Science, EarlyView.Autonomous laboratories can now synthesize materials faster than experts can interpret the resulting diffraction data. A probabilistic framework combines refinement‐fit metrics with large language model‐derived chemical reasoning to rank competing phase interpretations and flag those unsuitable for autonomous use.
Olympia Dartsi +7 more
wiley +1 more source
Staggered diamond-hole IDTs for lateral spurious mode suppression in LiNbO3 XBAR
Engineering Science and Technology, an International JournalThis work presents a LiNbO3 laterally excited bulk acoustic resonator (XBAR) with staggered diamond-hole interdigital transducers (IDTs) for suppressing higher-order A1-n spurious modes.
Pengyi Wang +8 more
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Spurious Regression in Nonstationary Panels with Cross-Unit Cointegration [PDF]
This paper illustrates analytically the effects of cross-unit cointegration using as an example the conventional pooled least squares estimate in the spurious panel regression case.
Westerlund, Joakim, Urbain, Jean-Pierre
core
Advanced Science, EarlyView.DDSurfer reconstructs cortical surfaces directly from diffusion MRI without requiring T1‐weighted scans. By fusing complementary microstructural features and learning diffeomorphic deformations, it efficiently generates accurate white matter and pial surfaces, improving geometric fidelity and morphometric reliability across datasets for robust surface ...
Chengjin Li +10 more
wiley +1 more source