Results 21 to 30 of about 22,356 (261)

Multiscale characterization reveals oligomerization dependent phase separation of primer-independent RNA polymerase nsp8 from SARS-CoV-2

open access: yesCommunications Biology, 2022
The phase separation behaviour of non-structure protein nsp8 of SARS CoV2 in the primer synthesis mechanism is presented, underpinning the replication of coronavirus.
Jinxin Xu   +11 more
doaj   +1 more source

Sensing Performance of Ethanol Microfiber Probe Augmented by ZnO Nanosheet and UV Glue Film

open access: yesPhotonics, 2023
A microfiber reflective ethanol gas sensing probe was designed and fabricated. The single-mode fiber was heated and stretched to prepare a microfiber taper, on which a mixed material of ZnO nanosheets and UV glue was built by the dip-coating method.
Fuhua Liu   +5 more
doaj   +1 more source

A prototype of the SiPM readout scintillator neutron detector for the engineering material diffractometer of CSNS

open access: yesNuclear Engineering and Technology, 2022
A high detection efficiency thermal neutron detector based on the 6LiF/ZnS(Ag) scintillation screens, wavelength-shifting fibers (WLSF) and Silicon photomultiplier (SiPM) readout is under development at China Spallation Neutron Source (CSNS) for the ...
Qian Yu   +10 more
doaj   +1 more source

Dynamic Analysis and Degenerate Hopf Bifurcation-Based Feedback Control of a Conservative Chaotic System and Its Circuit Simulation

open access: yesComplexity, 2021
A novel conservative chaotic system with no equilibrium is investigated in this study. Various dynamics such as the conservativeness, coexistence, symmetry, and invariance are presented.
Xiaojuan Zhang   +4 more
doaj   +1 more source

DENSS-multiple: A structure reconstruction method using contrast variation of small-angle neutron scattering based on the DENSS algorithm

open access: yesBBA Advances, 2022
The 3D structure of biomacromolecules, such as protein and DNA/RNA, provide keys to understanding their biological functions. Among many structural biology techniques, small-angle scattering techniques with ab initio methods have been widely used to ...
Jacob Sumner, Shuo Qian
doaj   +1 more source

Advanced Neutron Focusing Optics for Pulsed Sources: Development and Prospects

open access: yesQuantum Beam Science
The evolution of neutron scattering from reactor-based steady-state sources to high-power pulsed spallation sources has necessitated a paradigm shift in neutron optics.
Taisen Zuo   +9 more
doaj   +1 more source

Design and development of long-pulse solid-state modulator for 324 MHz/648 MHz klystron power system of CSNS-II linac [PDF]

open access: yesAIP Advances
The Phase-II linear accelerator (Linac) of the China Spallation Neutron Source (CSNS-II) is designed to accelerate H− ions to 300 MeV, comprising a Radio Frequency Quadrupole (RFQ), four drift tube linacs (DTLs), 20 superconducting spoke cavities, and 24
Zhencheng Mu   +8 more
doaj   +1 more source

Effects of Carboxyl or Amino Group Modified InP/ZnS Nanoparticles Toward Simulated Lung Surfactant Membrane

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Quantum dots (QDs) as a promising optical probe have been widely used for in vivo biomedical imaging; especially enormous efforts recently have focused on the potential toxicity of QDs to the human body.
Juan Wang   +3 more
doaj   +1 more source

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Silicon Photomultiplier Readouts

open access: yesApplied Sciences
Among non-destructive testing (NDT) techniques, fast neutron radiography with a higher penetration capability has achieved rapid advancements. However, the application of the radiography detector in many fast neutron imaging systems is limited by ...
Xu Chen   +15 more
doaj   +1 more source

Bending Behavior of a Wrought Magnesium Alloy Investigated by the In Situ Pinhole Neutron Diffraction Method

open access: yesCrystals, 2018
The tensile twinning and detwinning behaviors of a wrought magnesium alloy have been investigated during in situ four-point bending using the state-of-the-art high spatial resolution pinhole neutron diffraction (PIND) method.
Wei Wu   +5 more
doaj   +1 more source

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