Results 101 to 110 of about 242,502 (308)
A case study on the pitfalls in prenatal ultrasonic detection of butterfly vertebra. [PDF]
Heliyon, 2023 Hu JQ, Zhang YG, Feng W, Shi H.
europepmc +1 more source
Method and apparatus for nondestructive testing [PDF]
, 1974 High voltage is applied to an arc gap adjacent to a test specimen to develop a succession of high frequency arc discharges. Those high frequency arc discharges generate pulses of ultrasonic energy within the test specimen without requiring the arc ...
Hoop, J. M.
core +1 more source
, 2014 In the search for phase change materials (PCM) that may rival traditional random access memory, a complete understanding of the amorphous to crystalline phase transition is required.
Bosse, James L. +3 more
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Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
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Advanced Engineering Materials, EarlyView.The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin +2 more
wiley +1 more source
Experimental Study on Contact Stress Ultrasonic Signal of Tubing
Shiyou jixie, 2020 To quantitatively evaluate the sealing quality of the connection of the tubing and casing joint, the metal contact test device is used to test the L80-13Cr material sample commonly used in the tubing.
Tian Chunmeng +3 more
doaj
All-Optical, Air-Coupled Ultrasonic Detection of Low-Pressure Gas Leaks and Observation of Jet Tones in the MHz Range. [PDF]
Sensors (Basel), 2023 Scheuer KG, DeCorby RG.
europepmc +1 more source
Experimental evaluation of three leak detection and location concepts for space stations [PDF]
Three leak (or precursor damage modes) detection and location concepts for space station overboard leakage were evaluated experimentally. The techniques are: (1) static and dynamic seal leak detector sensing of moisture or all gases in space cabin ...
Kazokas, G. P. +4 more
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Heterodyne Holography with full control of both signal and reference arms
, 2015 Heterodyne holography is a variant of phase shifting holography in which reference and signal arms are controlled by acousto optic modulators. In this review paper, we will briefy describe the method and its properties, and we will illustrate its ...
Gross, Michel
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A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection
Advanced Engineering Materials, EarlyView.A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan +9 more
wiley +1 more source