Results 21 to 30 of about 1,805,079 (341)

Embedded Ultrasonic Transducers for Active and Passive Concrete Monitoring

open access: yesSensors, 2015
Recently developed new transducers for ultrasonic transmission, which can be embedded right into concrete, are now used for non-destructive permanent monitoring of concrete. They can be installed during construction or thereafter.
Ernst Niederleithinger   +4 more
doaj   +1 more source

Influence of nanoparticle encapsulation and encoding on the surface chemistry of polymer carrier beads

open access: yesScientific Reports, 2023
Surface-functionalized polymer beads encoded with molecular luminophores and nanocrystalline emitters such as semiconductor nanocrystals, often referred to as quantum dots (QDs), or magnetic nanoparticles are broadly used in the life sciences as ...
Lena Scholtz   +8 more
doaj   +1 more source

Strain concentration of double-edge hole ductile composites in the full range of deformation by digital image correlation

open access: yeseXPRESS Polymer Letters, 2022
This study investigated variations in strain concentration factors (Kɛ) within the full deformation range of self-reinforced poly(ethylene terephthalate) composites (srPETs) with double-edge semicircular holes (DESH) using digital image correlation (DIC)
Sanjay Kumar   +4 more
doaj   +1 more source

Application of pyrophyllite in high-temperature treated building materials [PDF]

open access: yesScience of Sintering, 2023
Phyllosilicate mineral pyrophyllite is predominantly used in the ceramic industry because it exhibits high refractoriness. Due to its thermal transformation into mullite, pyrophyllite is stable at elevated temperatures, making it a suitable mineral ...
Terzić Anja   +4 more
doaj   +1 more source

Atomic positions independent descriptor for machine learning of material properties [PDF]

open access: yesPhys. Rev. B 98, 214112 (2018), 2018
The high-throughput screening of periodic inorganic solids using machine learning methods requires atomic positions to encode structural and compositional details into appropriate material descriptors. These atomic positions are not available {\it a priori} for new materials which severely limits exploration of novel materials.
arxiv   +1 more source

Ammonia plasma-treated carbon nanotube/epoxy composites and their using in sensing applications

open access: yeseXPRESS Polymer Letters, 2022
Epoxy composites filled by multiwalled carbon nanotubes treated by inductively coupled ammonia plasma were prepared to improve composite intrinsic properties.
Ruhan Benlikaya   +5 more
doaj   +1 more source

Laboratory tools to quantify biogenic dissolution of rocks and minerals: a model rock biofilm growing in percolation columns

open access: yesFrontiers in Earth Science, 2016
Sub-aerial biofilms (SAB) are ubiquitous, self-sufficient microbial ecosystems found on mineral surfaces at all altitudes and latitudes. SABs, which are the principal causes of weathering on exposed terrestrial surfaces, are characterised by patchy ...
Franz eSeiffert   +6 more
doaj   +1 more source

Design and Testing of a Composite Pressure Hull for Deep Autonomous Underwater Vehicles

open access: yesIEEE Access, 2022
This paper outlines the design and testing process of the hull of a deep small Autonomous Underwater Vehicle (AUV), rated at 2000m depth. Many existing AUV pressure housings use aluminum or other isotropic traditional metals, instead of composites due to
Moustafa Elkolali, Alex Alcocer
doaj   +1 more source

Test of Various Photocathodes [PDF]

open access: yesNucl.Instrum.Meth. A343 (1994) 117-120, 1994
A test of various photocathodes was carried out. The tested materials were CsI, CsTe, their multi-layers and so on. The quantum efficiencies of the various materials were measured under a vacuum and/or after exposure to several kinds of gases.
arxiv   +1 more source

Current situation of research on test methods for elastic modulus and Poisson’s ratio of single crystal superalloys

open access: yesJournal of Aeronautical Materials, 2019
In view of the anisotropic characteristics of elastic constants of single crystal superalloys and other materials, this paper summarizes two main existing testing methods for measuring elastic moduli and Poisson’s ratio of single crystal superalloys ...
ZHAO Pengtao, YU Huichen, HE Yuhuai
doaj   +1 more source

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