Results 131 to 140 of about 38,828 (312)

Free Vibration of Continuous Beam-Column on Elastic Foundation

open access: yes, 1981
Presented in this investigation is the derivation of the governing differential equation for Free Vibration of Continuous Beam-Column on Elastic Foundation subjected to axial force.
Shafiee, Ali Haji
core  

Vibration-based Damage Detection of the Reinforced Concrete Column

open access: yes, 2016
The article discusses the damage localization of concrete columns by means of vibration analysis techniques. The method for detecting and locating damage is based on the analysis of the dynamic characteristics of a structure, such as eigenfrequencies ...
Lyapin, A., Shatilov, Y.
core   +1 more source

On Determination Method for Resolution of Secondary Electron Images in Scanning Electron Microscopy

open access: yesAdvanced Science, EarlyView.
An idealized SEM, termed Rayleigh's microscope, is constructed by Monte Carlo simulation to represent imaging conditions that just satisfy the Rayleigh criterion. Based on this physically defined model, sharpness–resolution conversion curves are established and combined with the Rose criterion, enabling automated resolution evaluation from practical ...
Tongfang Yang, Yanbo Zou, Zejun Ding
wiley   +1 more source

Evaluation of uncertainty in the vibration attenuation with shunted piezoelectric transducers integrated in a beam-column support [PDF]

open access: yes, 2019
Vibrations in mechanical lightweight beam and truss-type structures are often related to several detrimental effects such as diminished durability, unwanted noise and safety issues.
Götz, Benedict
core  

Evaluation and reduction of steering column vibration of a rear wheel drive sedan

open access: yes, 2004
Vehicle noise, Vibration and Harshness (NVH) has become a key enabler for successful distinction between competitive vehicles because consumers have come to judge vehicle quality by NVH levels. One of many critical areas of NVH is the amount of vibration
Rao, Mohan D., Black, Matthew D.
core   +1 more source

Mitochondria and Neuromast Tagging With Fluorescent Gallium‐Triapine Analogues: In Cellulo MP FLIM and Zebrafish Live Imaging

open access: yesAdvanced Science, EarlyView.
Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green   +15 more
wiley   +1 more source

Numerical Investigation of Ultra-Wide Low-Frequency Wave Attenuation Using Seismic Metamaterials with Auxetic Slender Strips

open access: yesCrystals
Seismic metamaterials are an emerging vibration-damping technology, yet concentrating the bandgap in the low-frequency range remains challenging due to the constraints imposed by lattice size.
Haosheng Liu, Hongbo Zhang
doaj   +1 more source

Corals and Reef‐Dwelling Fish Regulate Carbon Storage and Cycling Processes in Coral Reef Ecosystems

open access: yesAdvanced Science, EarlyView.
Coral reefs are biodiversity hotspots, yet their role in carbon storage and cycling remains poorly understood. Using field surveys and modeling in the South China Sea, we reveal the overlooked potential of carbon storage in reef ecosystems and how reef fish, corals, and surface sediment jointly shape reef carbon reservoirs.
Yiting Chen   +8 more
wiley   +1 more source

Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys

open access: yesAdvanced Science, EarlyView.
This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin   +11 more
wiley   +1 more source

Coupled Vibration Mathematical Model of Special-Shaped Column Structure Considering Ground Rotation Effects

open access: yesBuildings
The establishment of a linear seismic response analysis model that considers ground rotation effects and eccentric torsion informed the investigation of the linear response characteristics of coupled lateral–torsional vibration, considering eccentricity ...
Zongbo Hu, Jianyang Xue
doaj   +1 more source

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