Results 111 to 120 of about 64,474 (291)
Tunable Dual‐Photoconductivity in VS2 Films
In this work, VS2 thin films are synthesized via chemical vapor deposition for photodetector applications and the fabricated devices demonstrated tunable dual‐photoconductivity effect mediated by CO2 adsorption and light‐assisted desorption. This work highlights the profound influence of gas adsorption on the photoconductivity behavior of VS2 films ...
Zhihua Cheng +13 more
wiley +1 more source
Isolated spin polarized hydrogen atoms as targets for laser-induced polarized electron acceleration
High density Spin Polarized Hydrogen (SPH) atoms, which can be prepared using UV dissociation of hydro-halide molecules, can be attractive as potential targets for laser ionization/acceleration schemes aiming to create high energy and high current ...
Dimitris Sofikitis +5 more
doaj +1 more source
Impact of Multiple S‐Palmitoylation on Peptide Ionization and Fragmentation in Mass Spectrometry
S‐palmitoylation is selectively introduced at potential modification sites of a model peptide. Modified peptides are then characterized by mass spectrometry, and the sites of modification are unambiguously identified. Lipidation, such as S‐palmitoylation, is an important, reversible post‐translational modification of proteins determining not only their
Elisa Badin, Carla Schmidt
wiley +1 more source
Photodissociation of HBr/LiF(001): A quantum mechanical model [PDF]
The photodissociation dynamics of HBr adsorbed on a LiF(001) surface is studied using time-independent quantum mechanics. The photodissociation lineshape and the Br(P(sub 1/2)-2)/Br(P(sub 3/2)-2) yield ratio are computed and compared with the ...
Seideman, Tamar
core +1 more source
From planes to bowls: photodissociation of the bisanthenequinone cation
We present a combined experimental and theoretical study of the photodissociation of the bisanthenequinone (C28H12O2) cation, Bq+. The experiments show that, upon photolysis, the Bq+ cation does not dehydrogenate, but instead fragments through the ...
Chen, Tao +4 more
core +1 more source
Abstract Analysis of triacylglycerol (TG) and phospholipid sn‐positional isomers can be divided into two main categories: (a) direct separation by chromatography or other means such as ion mobility mass spectrometry and (b) quantification of regioisomer ratios by structurally informative fragment ions with mass spectrometric methods.
Mikael Fabritius, Baoru Yang
wiley +1 more source
CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUD
In order to calculate the molecular concentrations in the interstellar cloud and to obtain heir spatial distribution we have made a computational code to solve the set of equations for chemical equilibrium and equations of charge and atom balance.
I. Shmeld, J. Freimanis, N. G. Bochkarev
doaj +1 more source
Intense VUV radiation ranging from 140 to 160 nm emitted by low‐pressure hydrogen radiofrequency plasma effectively decomposes a mixture of B1, G1, B2, and G2 aflatoxins on quartz glass substrates. Artificially contaminated maize grains with the same aflatoxin mixture resulted in 80% toxin removal in under 1 min. ABSTRACT A rapid, nonthermal method for
Nina Recek +5 more
wiley +1 more source
Near-UV photolysis cross sections of CH3OOH and HOCH2OOH determined via action spectroscopy [PDF]
Knowledge of molecular photolysis cross sections is important for determining atmospheric lifetimes and fates of many species. A method and laser apparatus for measurement of these cross sections in the near-ultraviolet (UV) region is described.
C. M. Roehl +6 more
doaj
Short‐Term Effect of Mars‐Like Radiation on Carbon and Oxygen Isotope Compositions of Carbonates
Abstract The stable isotope composition of carbonates records the environmental formation conditions and can indicate potential biosignatures if formed biologically. Martian meteorite carbonates display unusually high δ13C values, not explained using known terrestrial processes.
Nicolas Randazzo +5 more
wiley +1 more source

