Results 31 to 40 of about 809,318 (278)
Novel banana-discotic hybrid architectures
Beilstein Journal of Organic Chemistry, 2009 Here we present the design and synthesis of novel banana-discotic dimers and banana-bridged discotic dimers. The chemical structures have been characterized by spectral techniques and elemental analysis.
Hari Krishna Bisoyi +2 more
doaj +1 more source
Materials Research Express, 2021 Simple substrates for surface enhanced Raman spectroscopy (SERS), producible in a cost-efficient way, are of growing interest both for scientific and for environmental applications. In this study, we demonstrate the use of three types of bio-based tannin-
Gebhard Sabathi +10 more
doaj +1 more source
Intersubband electronic Raman scattering in narrow GaAs single quantum wells dominated by single-particle excitations [PDF]
, 2004 We measured resonant Raman scattering by intersubband electronic excitations in GaAs/AlAs single quantum wells (QWs) with well widths ranging from 8.5 to 18 nm.
A. Pinczuk +10 more
core +1 more source
FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Doppler-enhanced quantum magnetometry with thermal Rydberg atoms
New Journal of PhysicsWe report experimental measurements showing how one can combine quantum interference and thermal Doppler shifts at room temperature to detect weak magnetic fields.
Shovan Kanti Barik +4 more
doaj +1 more source
Theoretical study of optical fiber Raman polarizers with counterpropagating beams [PDF]
, 2010 The theory of two counter-propagating polarized beams interacting in a randomly birefringent fiber via the Kerr and Raman effects is developed and applied to the quantitative description of Raman polarizers in the undepleted regime. Here Raman polarizers,
Ania-Castanon, Juan Diego +3 more
core +3 more sources
Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution
Advanced Engineering Materials, EarlyView.Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat +5 more
wiley +1 more source
Direction-dependent Effects on Global 21 cm Detection
The Astrophysical JournalCosmic dawn represents a critical juncture in cosmic history when the first population of stars emerged. The astrophysical processes that govern this transformation need to be better understood.
Yash Agrawal, K. Kavitha, Saurabh Singh
doaj +1 more source
Thermal effects on electron-phonon interaction in silicon nanostructures
, 2009 Raman spectra from silicon nanostructures, recorded using excitation laser power density of 1.0 kW/cm^2, is employed here to reveal the dominance of thermal effects at temperatures higher than the room temperature.
A. K. Shukla +30 more
core +1 more source
Advanced Engineering Materials, EarlyView.Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente +3 more
wiley +1 more source