Results 1 to 10 of about 2,551,621 (293)

Prediction of Cu Zeolite NH3-SCR Activity from Variable Temperature 1H NMR Spectroscopy

open access: yesMolecules, 2023
Selective catalytic reduction (SCR) of NOx by ammonia is one of the dominant pollution abatement technologies for near-zero NOx emission diesel engines. A crucial step in the reduction of NOx to N2 with Cu zeolite NH3-SCR catalysts is the generation of a
Sambhu Radhakrishnan   +7 more
doaj   +1 more source

Reversible Parahydrogen Induced Hyperpolarization of 15N in Unmodified Amino Acids Unraveled at High Magnetic Field

open access: yesAdvanced Science, 2023
Amino acids (AAs) and ammonia are metabolic markers essential for nitrogen metabolism and cell regulation in both plants and humans. NMR provides interesting opportunities to investigate these metabolic pathways, yet lacks sensitivity, especially in case
Ewoud Vaneeckhaute   +4 more
doaj   +1 more source

Multi-Response Optimization of Electrical Discharge Machining of 17-4 PH SS Using Taguchi-Based Grey Relational Analysis [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
Multiple response optimization of the machining of 17-4 PH stainless steel material, which is difficult to process with traditional methods, with EDM was made by Taguchi-based grey relational analysis method. Surface roughness (Ra), material removal rate
E. Gerçekcioğlu, M. Albaşkara
doaj   +1 more source

IN SITU DRIFTS/MS STUDIES ON THE INTERACTION OF METHANOL AND ETHYL ACETATE OVER MG-LA CATALYST [PDF]

open access: yesQuímica Nova, 2020
The surface intermediates formed on the Mg-La catalyst (molar ratio 1:1) were studied through temperature-programmed desorption (TPD) and diffuse reflectance infrared Fourier transform spectroscopy coupled to mass spectrometry (DRIFTS-MS) using methanol (
Adão S. Gonçalves   +2 more
doaj   +1 more source

Surface characterization [PDF]

open access: yesJournal of Materials Science: Materials in Medicine, 1999
Journal of Materials Science. Materials in Medicine, 10 (1)
Sittig, C.   +4 more
openaire   +4 more sources

Confinement creates a 9 GPa ambience: emergence of cristobalite phases in a silica film

open access: yesMaterials Research Express, 2021
We present here the results of the x-ray fluorescence (XRF), x-ray photoelectron spectroscopy (XPS), Field Emission Scanning Electron Microscopy (FESEM) and Energy Dispersive Analysis of x-rays (EDAX), x-ray Reflectivity (XRR), Secondary Ion Mass ...
Subrata Pramanik   +4 more
doaj   +1 more source

Surface characterization data for tethered polyacrylic acid layers synthesized on polysulfone surfaces. [PDF]

open access: yes, 2019
The data presented are supplementary to an article [Kim et al., 2019] on synthesis and surface characterization of tethered polyacrylic acid (PAA) layers on polysulfone (PSf) film/membrane surfaces via atmospheric pressure plasma-induced graft ...
Bilal, Muhammad   +4 more
core   +2 more sources

Characterization of Surface Topography Variation in the Ultra-Precision Tool Servo-Based Diamond Cutting of 3D Microstructured Surfaces

open access: yesMicromachines, 2021
Previous models of the relative tool-work vibration are not generalized to represent the surface generation mechanism in the ultra-precision tool servo-based diamond cutting (UTSDC) of three-dimensional (3D) microstructured surfaces.
Wei Yuan, Chi-Fai Cheung
doaj   +1 more source

Fabrication and characterizations of proton-exchanged LiNbO3 waveguides fabricated by inductively coupled plasma technique [PDF]

open access: yes, 2006
This Letter reports the use of an inductively coupled plasma technique for fabrication of proton-exchanged (PE) LiNbO3 (LN) waveguides. Planar and stripe waveguides have been formed in Y-cut LN which are difficult to obtain with the conventional molten ...
Hallam, K. R.   +6 more
core   +1 more source

Surface Characterization of Carbon Steel after Rolling Burnishing Treatment

open access: yesMetals, 2023
The paper presents the results of experimental research and surface characteristics after the process of roller burnishing of macro-asperities of the surface.
Agnieszka Kułakowska, Łukasz Bohdal
doaj   +1 more source

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