Results 51 to 60 of about 3,294,049 (263)

Ultraviolet absorption lines in cosmic ray heated H I regions [PDF]

open access: yes, 1970
Ultraviolet absorption lines in cosmic ray heated H I ...
Silk, J.
core  

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

Rapid analysis of piperazine ferulate tablets by optic-fiber sensing technology and the similarity of ultraviolet spectra

open access: yesJournal of Pharmaceutical Analysis, 2012
A rapid analysis method of piperazine ferulate tablets by optic-fiber sensing technology with UV–vis absorption spectrum was established. Qualitative and quantitative data were obtained and compared by maximum and minimum wavelength, absorbance and ...
Li Li   +3 more
doaj   +1 more source

First-principles study of the crystal structure, electronic and optical properties of Cu2O1-xMx (M = S, Se, Te)

open access: yesMaterials Research Express, 2022
Cu _2 O has the advantages of low price, stable chemical properties, and high visible light absorption rate. It is a very promising hole transport material in solar cells.
Bao Zhou   +6 more
doaj   +1 more source

Ultraviolet absorption spectra of HNCS and DNCS

open access: yes, 1971
Ultraviolet absorption spectra of HNCS and DNCS have been photographed in the 2200–3400 Å region. Four band progressions have been identified of which two of them seem to have origin in the upper state bending vibration of the NCS ...
Ramachandra Rao, D.   +3 more
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Theoretical study of XUV pulse shaping due to the modulation of an IR pulse in macroscopic systems

open access: yesNew Journal of Physics
Propagation effects are widely recognized as the origin of complex features observed in macroscopic absorption spectra. Here, we examine the evolution of spectral reshaping driven by laser-imposed initial phase modulation during pulse propagation.
Haohan Shi   +5 more
doaj   +1 more source

Autoionization effects in ultraviolet absorption spectra of hot gases Scientific report no. 6 [PDF]

open access: yes, 1965
Autoionization effects in ultraviolet absorption spectra of hot ...
Garton, W. R. S.
core  

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

UV spectroscopic instrumentation for formaldehyde detection in the indoor environment [PDF]

open access: yes, 2014
The aim of this project was to assess the feasibility of using UV spectroscopy for a simple detection system for formaldehyde gas in the indoor environment.
Davenport, John
core   +3 more sources

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