Results 61 to 70 of about 33,881 (247)

Fluctuation Analyses for Pattern Classification in Nondestructive Materials Inspection

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
We review recent work on the application of fluctuation analyses of time series for pattern classification in nondestructive materials inspection. These analyses are based on the evaluation of time-series fluctuations across time intervals of increasing ...
A. P. Vieira   +2 more
doaj   +1 more source

MatImageAgent: A Large Language Multimodal Agent for Materials Characterization Images

open access: yesMaterials Genome Engineering Advances, EarlyView.
MatImageAgent, an LLM‐powered agent‐based system, automates materials science image analysis by task descriptions, shows high stability/accuracy, and boosts productivity by reducing programming needs. ABSTRACT Our study introduces MatImageAgent, an agent‐based system that employs large language models (LLMs) to completely automate the image analysis ...
Mingxi Jiang   +6 more
wiley   +1 more source

Ultrasonic nondestructive inspection of solid objects [PDF]

open access: yesAIP Conference Proceedings, 2012
Ultrasonic testing (UT) has been used for nondestructive evaluation (NDE) of materials for more than half a century. A number of NDE techniques have been developed and specific standards have been created for the UT applications in different areas of engineering.
openaire   +1 more source

Overview of space propulsion systems for identifying nondestructive evaluation and health monitoring opportunities [PDF]

open access: yes
The next generation of space propulsion systems will be designed to incorporate advanced health monitoring and nondestructive inspection capabilities. As a guide to help the nondestructive evaluation (NDE) community impact the development of these space ...
Generazio, Edward R.
core   +1 more source

Acoustic emission used as weld quality monitor [PDF]

open access: yes, 1972
Acoustic emission technique is described for use as quality control tool in nondestructive inspection of welds. Stress mounts around weld defect until it exceeds yield strength of material.
Jolly, W. O.
core   +1 more source

Numerical modeling and measurement by pulsed television holography of ultrasonic displacement maps in plates with through-thickness defects [PDF]

open access: yes, 2010
We present a novel numerical modeling of ultrasonic Lamb and Rayleigh wave propagation and scattering by through-thickness defects like holes and slots in homogeneous plates, and its experimental verification in both near and far field by a self ...
Amlani, Faisal   +6 more
core   +1 more source

Characterizing the Diffusion Properties of Prostate Tissue Using Paired MR Microscopy and Multidimensional Diffusion MRI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To characterize the diffusion properties of prostate epithelium and stroma in benign tissue and cancer. Methods Paired MR microscopy (20 μm) and multidimensional diffusion MRI (dMRI) (160 μm, b = 1000–2000 s/mm2, ∆ = 15–120 ms) were performed at 16.4 T on 17 fixed prostate tissue samples (14× benign, 2× Gleason 3 + 3, 1× Gleason 4 + 4).
Adam Phipps   +7 more
wiley   +1 more source

Adaptive learning method for multiple-object detection in manufacturing

open access: yesAdvances in Mechanical Engineering, 2015
In manufacturing, vision-based inspections are effective nondestructive methods for implementing object discrimination. To minimize inspection times, multiple-object discrimination must be implemented for one inspection image.
Tsun-Kuo Lin
doaj   +1 more source

Acoustic Field of a Linear Phased Array: A Simulation Study of Ultrasonic Circular Tube Material

open access: yesSensors, 2019
As ultrasonic wave field radiated by an ultrasonic transducer influences the results of ultrasonic nondestructive testing, simulation and emulation are widely used in nondestructive testing. In this paper, a simulation study is proposed to detect defects
Zhitao Xiao   +6 more
doaj   +1 more source

Ultrasonics used for high-precision nondestructive inspection of brazed joints [PDF]

open access: yes, 1971
Technique detects voids greater than or equal to 0.1016 cm in braze depths of 0.254 cm, detecting voids of smaller dimensions is possible. Internal design ensures control of beam's water path length to within 0.635 cm, this length is critical to system's
Peterson, R. M.
core   +1 more source

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