Results 91 to 100 of about 3,845,991 (260)

Influence of Fe Particle Size Distribution on Chemical Homogeneity, Microstructure, and Crack Formation in Fe–SiC Powder Blends Processed by PBF‐LB/M

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of Fe particle size on in situ alloying of Fe–SiC powder blends in PBF‐LB/M is revealed. Contrary to expectations, the coarser Fe fraction provides a broader crack‐free processing window and slightly improved elemental homogeneity while producing higher but more variable hardness. The results highlight a complex trade‐off between particle
Anna Luise Strauch   +2 more
wiley   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Alternative production of pro-death Bax∆2 protein via ribosomal frameshift in Alzheimer’s disease

open access: yesScientific Reports
Pro-death Bax family member, Bax∆2, forms protein aggregates in Alzheimer’s disease neurons and causes stress granule-mediated neuronal death. Production of Bax∆2 originated from two events: alternative splicing of Bax exon 2 and a microsatellite ...
Qi Yao   +7 more
doaj   +1 more source

A dual quadrupole ion trap mass spectrometer

open access: yes, 1999
International audienceTwo quadrupole ion traps are used to carry out a mass spectrometer. The first concerns ion preparation with possible mass selection functions.
Zerega, Y   +11 more
core   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

HPLC-MS with an Ion Trap Mass Spectrometer

open access: yesCHIMIA, 1999
Ion traps have become an important and powerful tool in many fields of analytical chemistry. The immanent sensitivity of the device and the ability to perform MSn opens a wide variety of experimental setups even at very low sample concentration ...
Christoph Siethoff   +3 more
doaj   +2 more sources

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Online connection of free-flow isotachophoresis chip to an electrospray ionization mass-spectrometer

open access: yes, 2015
We present the online coupling of a free-flow isotachophoresis (FFITP) chip to an electrospray ionization mass spectrometer (ESI-MS) for continuous online analysis without extensive sample preparation. In comparison with batch electrophoretic techniques,
Park, J (15618233)   +2 more
core  

Performance of the LNL recoil mass spectrometer

open access: yes, 1994
The LNL recoil mass spectrometer, in operation for some years on line with the LNL XTU Tandem accelerator has been used primarily for the study of reaction products emitted at 0° to the beam direction.
L. Müller   +13 more
core   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

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