Results 51 to 60 of about 66,920 (303)

Recommendation of RILEM TC 212-ACD: acousticemission and related NDE techniques for crack detectionand damage evaluation in concrete. Measurement method for acoustic emission signals in concrete [PDF]

open access: yes, 2010
The text presented hereafter is a draft for general ...
Aggelis, D.   +17 more
core   +2 more sources

Nanodiamond Quantum Sensors for Probing Free Radical Biology

open access: yesAdvanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source

Measurement of the D/H, 18O/16O, and 17O/16O Isotope Ratios in Water by Laser Absorption Spectroscopy at 2.73 μm

open access: yesSensors, 2014
A compact isotope ratio laser spectrometry (IRLS) instrument was developed for simultaneous measurements of the D/H, 18O/16O and 17O/16O isotope ratios in water by laser absorption spectroscopy at 2.73 μm.
Tao Wu   +9 more
doaj   +1 more source

Characteristics of 2-D Electrical Resistivity Imaging Survey for Soil [PDF]

open access: yesEngineering and Technology Journal, 2013
The present work is aimed to show the efficiency of 2-D Electrical Resistivity Imaging (ERI) in probing the subsurface soil for site investigation, in addition to highlight some capabilities and characteristics of the sections acquired by 2D-ERI survey ...
Hussein H. Karim   +2 more
doaj   +1 more source

Stress Evaluation in Axially Loaded Members of Masonry Buildings and Space Structures: From Traditional Methods to Combinations with Artificial Intelligence Approaches

open access: yesBuildings, 2023
Stress state evaluation in axially loaded structural members is significant for sustaining and preserving the service life of buildings. While successful monitoring furnishes staunch information on the health, integrity, safety and serviceability of ...
Marco Bonopera
doaj   +1 more source

Dc pin-to-pin testing of integrated circuits [PDF]

open access: yes, 1968
External pin-to-pin nondestructive testing procedure measures the electrical characteristics of each element in an integrated circuit.
Thomas, E. F.
core   +1 more source

Recommendation of RILEM TC 212-ACD: acousticemission and related NDE techniques for crack detectionand damage evaluation in concrete.Test method for damage qualification of reinforced concrete beams by acousticemission [PDF]

open access: yes, 2010
The text presented hereafter is a draft for general ...
Aggelis, D.   +17 more
core   +3 more sources

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

Spark ultrasonic transducer [PDF]

open access: yes, 1972
Nondestructive testing by spark transducer induces ultrasonic pulses in materials without physical contact. High power pulse generator connected to step up transformer produces sparking between two tungsten rods and ultrasonic energy pulses in test ...
Hoop, J. M.
core   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

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