Results 31 to 40 of about 144,631 (264)

Effects of Electron Beam Irradiation on Mechanical and Thermal Shrinkage Properties of Boehmite/HDPE Nanocomposite Film

open access: yesNanomaterials, 2021
Nanocomposites comprising high-density polyethylene (HDPE) and boehmite (BA) nanoparticles were prepared by melt blending and subsequently irradiated with electrons.
Ju Hyuk Lee   +3 more
doaj   +1 more source

Impact research of electron beam processing on the structure and properties of РА6 polyamide

open access: yesEurasian Physical Technical Journal, 2019
In this work we studied the impact of electron irradiation with energy of 1.3 MeV on the structure and properties of PA6 polyamide. Irradiation doses ranged from 50 to 500 kGy.
B.K. Rakhadilov   +4 more
doaj   +1 more source

Alkaline-Enhanced Poly(Acrylic Acid)/Sodium Alginate/PEO Hydrogels: Structural Modifications and Functional Properties for Agriculture

open access: yesGels
This study examines the impact of alkaline treatment on hydrogels composed of acrylic acid (AAc), sodium alginate (SA), and poly(ethylene oxide) (PEO), produced via 5.5 MeV electron beam irradiation, emphasizing swelling behavior and functional ...
Elena Manaila   +3 more
doaj   +1 more source

Direct observation of oxygen-vacancy formation and structural changes in Bi2WO6 nanoflakes induced by electron irradiation

open access: yesBeilstein Journal of Nanotechnology, 2019
The prominent role of oxygen vacancies in the photocatalytic performance of bismuth tungsten oxides is well recognized, while the underlying formation mechanisms remain poorly understood.
Hong-long Shi   +4 more
doaj   +1 more source

Nanohardness of Electron Beam Irradiated HDPE [PDF]

open access: yesAdvanced Materials Research, 2014
Micromechanical changes in the surface layer of High-density polyethylene HDPE modified by beta radiation were measured by instrumented test of nanohardness. The specimens were prepared by injection technology and subjected to radiation doses of 0, 132, 165, 198 kGy.
Maňas, David   +6 more
openaire   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Effect of heat load on microstructural development in an irradiated low alloy steel

open access: yesNuclear Materials and Energy, 2018
To investigate the influence of heat load on microstructure change, we conducted in-situ experiments of annealing and irradiation for a model alloy (Fe-0.75Mn-0.47Mo-0.45Ni) using a multi-beam high voltage electron microscope.
Shunta Goto, N. Hashimoto
doaj   +1 more source

AscF in the mycobacterial CIII–CIV supercomplex lacks metal and nucleotide binding but links malate oxidation to respiration

open access: yesFEBS Letters, EarlyView.
The mycobacterial CIII‐CIV respiratory supercomplex is an obligate assembly, encompassing several subunits of unknown functions. We have characterized the intracellular subunit AscF, and show that it is unlikely to be a sensor for metals or nucleotides, but is required for growth on nonfermentable energy sources, and likely works as an adapter for ...
Eni Rile   +8 more
wiley   +1 more source

Secondary electron yield of Cu technical surfaces: Dependence on electron irradiation

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2013
The secondary emission yield (SEY) properties of colaminated Cu samples for LHC beam screens are correlated to the surface chemical composition determined by x-ray photoelectron spectroscopy. The surface of the as-received samples is characterized by the
R. Larciprete   +4 more
doaj   +1 more source

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