Results 51 to 60 of about 1,608,801 (307)

Preparation and Photocatalytic Properties of N-Doped Graphene/TiO2 Composites

Journal of Chemistry, 2020
N-doped graphene (NG)/TiO2 composites were prepared by a two-step hydrothermal method using HF as the surface etchant and urea as the nitrogen source. The morphology, structure, and bonding conditions of the NG/TiO2 composites were characterized by X-ray
Jing Liu, Kun-Yu Chen, Jie Wang, Min Du, Zheng-Yang Gao, Chun-Xiao Song   +5 more
doaj   +1 more source

Grain Size Effects on UV–MIR (0.2–14 μm) Spectra of Carbonaceous Chondrite Groups

The Planetary Science Journal, 2023
Carbonaceous chondrites are among the most important meteorite types and have played a vital role in deciphering the origin and evolution of our solar system.
David C. Cantillo, Vishnu Reddy, Adam Battle, Benjamin N. L. Sharkey, Neil C. Pearson, Tanner Campbell, Akash Satpathy, Mario De Florio, Roberto Furfaro, Juan Sanchez   +9 more
doaj   +1 more source

Identification and characterization of a gene conferring stress resistance in Escherichia coli and cyanobacteria

FEBS Open Bio, EarlyView.
Functional screening identified PcSyn14890, a cyanobacteria‐specific protein that enhances growth and stress resistance in E. coli and Synechocystis PCC6803. Although we expected it to function as a molecular chaperone, it was unable to protect against thermal aggregation of GAPDH.
Akiyo Yamada, Takaaki Tanaka, Manaka Uehara, Keigo Nakano, Ken Morishima, Rintaro Inoue, Masaaki Sugiyama, Masafumi Yohda   +7 more
wiley   +1 more source

High-Resolution Vacuum Ultraviolet Photoelectron Spectroscopy

CHIMIA, 2001
The development of narrow bandwidth tunable laser systems in the vacuum ultraviolet region of the electromagnetic spectrum and of new experimental methods has recently enabled a significant improvement in the resolution that can be achieved by ...
Urs Hollenstein, Bethany Brupbacher-Gatehouse, Gregory M. Greetham, Stefan Willitsch, Patrick Rupper, Andrea Wüest, Marcel Sommavilla, Andreas Osterwalder, Robert Seiler, Frédéric Merkt   +9 more
doaj  

The LOUVRE Laboratory: State-of-the-Art Ultrafast Ultraviolet Spectroscopies for Molecular and Materials Science

CHIMIA, 2017
We describe the facilities for ultraviolet studies in the femtosecond to nanosecond time domain. These facilities consist of: i) a set-up for deep-ultraviolet spectroscopy in the 260–380 nm range in both pump and probe pulses for transient ...
Malte Oppermann, Frank van Mourik, Thomas Rossi, Tania Palmieri, Benjamin Bauer, Lars Mewes, Edoardo Baldini, Aurelio Oriana, Natalia S. Nagornova, Majed Chergui   +9 more
doaj   +1 more source

Ultraviolet tip-enhanced nanoscale Raman imaging

, 2012
We have constructed an ultraviolet (UV)-apertureless near-field scanning optical microscope-Raman spectroscopy system by using an aluminum tip for the simultaneous measurement of topography and Raman scattering of nanomaterials with high spatial ...
Kim, Yong Hwan, Lee, Young Hee, Park, Jin-Ho, Park, Jung Su, Lee, Hong Seok, Yim, Sang-Youp, Park, Kyoung-Duck, Jeong, Mun Seok   +7 more
core   +1 more source

Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora

FEBS Open Bio, EarlyView.
This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi, Alain Dolla, Frauke Baymann, Celine Rommevaux, Latifa Elantak, Helene Gaussier, Matthieu Nouailler   +6 more
wiley   +1 more source

Vibrational dynamics resolved with sub-10-fs deep-ultraviolet pulses

EPJ Web of Conferences, 2013
Time-resolved ultrafast spectroscopy with sub-10-fs deep ultraviolet pulses was demonstrated for the first time. For the spectroscopy, the sub-10-fs pulses with smooth temporal and spectral profiles, which were suitable for spectroscopy, were prepared ...
Kobayashi T., Kida Y.
doaj   +1 more source

The Role of Ultra‐Thin Passive Films and Organic Adsorbates on Aluminum Chips for a Friction‐Induced Solid‐State Recycling Process

Advanced Engineering Materials, EarlyView.
Despite benefits to storage stability and handleability of aluminum scrap, octadecyl phosphonic acid (ODPA) SAMs reduce the tensile strength of wires produced using friction‐induced recycling. Etching and methyl diphosphonic acid (MDPA) coatings, however, have little effect.
Timothy D. Goller, Steffen Gabsa, Werner Homberg, Guido Grundmeier   +3 more
wiley   +1 more source

PREDICTION OF PHYSICOCHEMICAL PROPERTIES OF FCC FEEDSTOCK BY CHEMOMETRIC ANALYSIS OF THEIR ULTRAVIOLET SPECTRUM PREDICCIÓN DE PROPIEDADES FISICOQUÍMICAS DE CARGAS A FCC MEDIANTE EL ANÁLISIS QUIMIOMÉTRICO DE SUS ESPECTROS ULTRAVIOLETA

CT&F Ciencia, Tecnología & Futuro, 2008
Chemometric analysis by Partial Least Squares (PLS) has been applied in this work to correlate the ultraviolet spectrum of combined Fluid Catalytic Cracking (FCC) feedstocks with their physicochemical properties.
Carlos-A. Baldrich Ferrer
doaj