Results 41 to 50 of about 1,457,965 (318)

Investigation of the Uniformity of Gel Shrinkage by Imaging Tracer Particles Using X‐Ray Microtomography

open access: yesAdvanced Engineering Materials, EarlyView., 2023
A novel method for tracking structural changes in gels using widely accessible microcomputed tomography is presented and validated for various hydro‐, alco‐, and aerogels. The core idea of the method is to track positions of micrometer‐sized tracer particles entrapped in the gel and relate them to the density of the gel network.
Anja Hajnal   +3 more
wiley   +1 more source

The cos 2ϕ azimuthal asymmetry in ρ 0 meson production in ultraperipheral heavy ion collisions

open access: yesJournal of High Energy Physics, 2020
We present a detailed study of vector meson photoproduction in ultraperipheral heavy ion collisions (UPCs). Using the dipole model, we develop a framework for the joint impact parameter and transverse momentum dependent cross sections.
Hongxi Xing   +3 more
doaj   +1 more source

Radiation mutagenesis of Bacillus velezensis and its antibacterial effect on Colletotrichum gloeosporioides

open access: yesFushe yanjiu yu fushe gongyi xuebao, 2023
We used 60Co-γ ray and electron beam irradiation to mutate Bacillus velezensis to breed genetically stable mutant strains. The mutant strains were screened and re-screened by plate confrontation and the four-point method to study their antibacterial ...
XIE Hui   +9 more
doaj   +1 more source

Modification of intergrain connectivity, upper critical field anisotropy, and critical current density in ion irradiated MgB2 films

open access: yes, 2005
We study the effect of 100 MeV Silicon and 200 MeV Gold ion irradiation on the inter and intra grain properties of superconducting thin films of Magnesium Diboride.
Bean   +31 more
core   +1 more source

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Simulation Study on the Defect Generation, Accumulation Mechanism and Mechanical Response of GaAs Nanowires under Heavy-Ion Irradiation

open access: yesNanomaterials, 2022
Nanowire structures with high-density interfaces are considered to have higher radiation damage resistance properties compared to conventional bulk structures.
Tongxuan Jia   +9 more
doaj   +1 more source

Electronic and atomic kinetics in solids irradiated with free-electron lasers or swift-heavy ions

open access: yes, 2015
In this brief review we discuss the transient processes in solids under irradiation with femtosecond X-ray free-electron-laser (FEL) pulses and swift-heavy ions (SHI).
Medvedev, N., Volkov, A. E., Ziaja, B.
core   +1 more source

The intracellular domain of TLR2 is capable of high‐affinity Zn binding: possible outcomes for the receptor activation

open access: yesFEBS Letters, EarlyView.
Toll‐like receptors (TLRs) are important in the innate immune system. This study explores the zinc‐binding ability of the TLR2 TIR domain (TLR2TIR). We found that TLR2TIR binds zinc with nanomolar affinity through its cysteine residues. Two of them, C673 and C713, are vital for receptor activation, indicating that zinc may play a role in initiating ...
Vladislav A. Lushpa   +8 more
wiley   +1 more source

Searching for wormholes with gravitational wave scattering

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We propose using the gravitational wave scattering off spherical wormholes to search for their existence. We carefully calculate the reflected and transmitted waveforms with time-independent scattering theory.
Hong Zhang, Shaoqi Hou, Shou-shan Bao
doaj   +1 more source

Coincidence time resolution of radiation detector based on 6×6 mm2 ToF SiPM detectors with different readout schemes

open access: yesFrontiers in Physics, 2023
Introduction: Nowadays, attention is growing on the Silicon Photomultipliers (SiPMs) detector for many applications, especially in nuclear medicine. In Positron Emission Tomography (PET) scanner, timing performance of a PET detector plays a significant ...
Changyu Li   +4 more
doaj   +1 more source

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