Results 81 to 90 of about 3,838,312 (316)

Three-stage automatic operational modal analysis using mathematical mode elimination by density-based clustering method [PDF]

open access: yesمهندسی عمران شریف
Estimating a structure's modal parameters is essential for various applications, including health monitoring, damage detection, design verification, and model updating.
A. Salar Mehrabad, A. Shooshtari
doaj   +1 more source

Detection of Jovian seismic waves: a new probe of its interior structure [PDF]

open access: yes, 2011
Knowledge of Jupiter's deep interior would provide unique constraints on the formation of the Solar System. Measurement of its core mass and global composition would shed light on whether the planet formed by accretion or by direct gravitational collapse.
Gaulme, Patrick   +4 more
core   +2 more sources

Long‐Tea‐CLIP: An Expert‐Level Multimodal AI Framework for Fine‐Grained Green Tea Grading Across Five Sensory Dimensions

open access: yesAdvanced Science, EarlyView.
Long‐Tea‐CLIP (Contrastive Language‐Image Pre‐training) presents a multimodal AI framework that integrates visual, metabolomic, and sensory knowledge to grade green tea across appearance, soup color, aroma, taste, and infused leaf. By combining expert‐guided modeling with CLIP‐supervised learning, the system delivers fine‐grained quality evaluation and
Yanqun Xu   +9 more
wiley   +1 more source

In-band spurious suppression in first-order antisymmetric-mode resonators using air holes and half electrode

open access: yesEngineering Science and Technology, an International Journal
Laterally excited bulk acoustic resonator (XBAR) exhibits a high electromechanical coupling coefficient (kt2) due to their intrinsically superior piezoelectric properties, which is highly advantageous for the subsequent design and implementation of ...
Shitao Lv   +7 more
doaj   +1 more source

Improved non-dimensional dynamic influence function method for vibration analysis of arbitrarily shaped plates with simply supported edges

open access: yesAdvances in Mechanical Engineering, 2018
An analytical method for free vibration analysis of arbitrarily shaped plates with simply supported edges is presented using the non-dimensional dynamic influence function (NDIF) method, which was introduced by the author.
Sangwook Kang
doaj   +1 more source

Relativistic Approach to Isoscalar Giant Resonances in 208Pb [PDF]

open access: yes, 2000
We calculate the longitudinal response of 208Pb using a relativistic random-phase approximation to three different parameterizations of the Walecka model with scalar self-interactions.
Piekarewicz, J.
core   +2 more sources

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

open access: yesAdvanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong   +7 more
wiley   +1 more source

Excitation Spectrum in the Friedberg-Lee Model [PDF]

open access: yes, 2001
The excitation spectrum of the nucleon with the spin 1/2 is examined by using the Friedberg-Lee model containing the constituent quark and the scalar meson. An appropriate way of quantization for the non-linear meson field is employed by taking account
Arima, M., Kowata, H.
core   +3 more sources

Phenotypic Diversity and Outcomes in Pediatric NMDA Receptor Encephalitis: A 15‐Year Retrospective Study from the Largest Children's Hospital in the United States

open access: yesAdvanced Science, EarlyView.
ABSTRACT Anti‐NMDAR encephalitis (NMDARE) is an autoantibody‐mediated disorder characterized by seizures, movement disorders, neurocognitive deficits, and psychosis, but the complete phenotypic heterogeneity, and outcomes are incompletely understood in children.
Alexander J. Sandweiss   +9 more
wiley   +1 more source

Spurious Modes in Dirac Calculations and How to Avoid Them

open access: yes, 2013
In this paper we consider the problem of the occurrence of spurious modes when computing the eigenvalues of Dirac operators, with the motivation to describe relativistic electrons in an atom or a molecule.
Lewin, Mathieu, Séré, Eric
core   +2 more sources

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