Results 81 to 90 of about 393,734 (297)

Non-destructive testing of rock bolt fastening as an element of monitoring the state of mine workings [PDF]

open access: yes, 2019
Purpose. To substantiate the informative parameter, to develop the method and equipment for non-destructive testing (NDT) of rock bolt fastening, as an element of geomechanical monitoring of the mine workings state. Methods.
Krasovskyi, I   +3 more
core   +1 more source

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel   +6 more
wiley   +1 more source

Multimodal Non-Destructive In Situ Observation of Crystallinity Changes in High-Density Polyethylene Samples with Relation to Optical Parameters during Tensile Deformation

open access: yesSensors
Many non-destructive optical testing methods are currently used for material research, providing various information about material parameters. At RECENDT, a multimodal experimental setup has been designed that combines terahertz (THz) spectroscopy ...
Karoline Felbermayer   +6 more
doaj   +1 more source

Application of Capillary Testing Methods of Non-Destructive Testing [PDF]

open access: yes, 2018
Bakalářská práce se zabývá kapilárními metodami nedestruktivního testování. Úvodní rešerše je věnována teoretickým základům metod, informacím o zkušebních prostředcích a poznatkům pro jejich aplikaci.
Kostecký, Vít
core  

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani   +2 more
wiley   +1 more source

Sensor for Rapid In-Field Classification of Cannabis Samples Based on Near-Infrared Spectroscopy

open access: yesSensors
A rugged handheld sensor for rapid in-field classification of cannabis samples based on their THC content using ultra-compact near-infrared spectrometer technology is presented.
Robert Zimmerleiter   +9 more
doaj   +1 more source

Nondestructive Investigation of Stress-Induced Damage in Concrete

open access: yesAdvances in Civil Engineering, 2010
The changes in the sonic surface wave velocity of concrete under stress were investigated in this paper. Surface wave velocities at sonic frequency range were measured on a prismatic concrete specimen undergoing several cycles of uniaxial compression ...
P. Shokouhi, A. Zoëga, H. Wiggenhauser
doaj   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente   +3 more
wiley   +1 more source

Qualitative non-destructive testing of concrete-like materials [PDF]

open access: yes, 2013
International audienceIn this paper we explore the capacity of Qualita-tive Inversion Methods to detect macroscopic cracks or a lattice of small cracks in concrete-like materi-als.
Audibert, Lorenzo   +2 more
core   +2 more sources

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour   +5 more
wiley   +1 more source

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