Results 101 to 110 of about 111,164 (268)

Systematic Study of PDMS Optical Waveguides for Pressure Sensing Using Design of Experiments

Journal of Applied Polymer Science, EarlyView.
A response surface methodology was used to systematically evaluate the impact of mix ratio and cure conditions on PDMS optical waveguide properties for pressure sensing. Mix ratio significantly influenced compression sensitivity, compressive modulus, and propagation loss, while cure temperature primarily affected refractive index.
Camila A. Zimmermann, Bora Ung
wiley   +1 more source

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

Astronomische Nachrichten, EarlyView.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik, P. Köchling, S. Kotov, J. Kozok, Y. Galata, L. Magrini, A. Moiseev, M. Nischang, C. Reese, P. Remmel, P. Riepe, T. Zilch, K. Werner   +12 more
wiley   +1 more source

Nonconservative Rayleigh scattering [PDF]

Astronomy & Astrophysics, 2019
Context. The continuous spectrum of stellar and planetary atmospheres can be linearly polarized by Rayleigh or Thomson scattering. The polarization rate depends on the ratio κc/(κc + σc), κc and σc being the absorption coefficients due to photo-ionizations and scattering processes, respectively.
openaire   +3 more sources

Development of Raman Spectroscopy and Machine Learning Methods for Protein Aggregate Quantification: Application to BSA in Chromatographic Processes

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Protein aggregation poses a significant risk to biopharmaceutical product quality, as even minor amounts of oligomeric species can compromise efficacy and safety. Rapid and reliable detection of protein aggregates thus remains a major challenge in biopharmaceutical manufacturing.
Jakob Heyer‐Müller, Robin Schiemer, Lars Robbel, Michael Schmitt, Jürgen Hubbuch   +4 more
wiley   +1 more source

Modeling and Analysis of Optical Time-domain Reflectometry in Strongly-coupled Multi-core Fiber

Guangtongxin yanjiu
【Objective】In the modern field of communications, optical fibers have become an important transmission medium in optical network systems due to their ultra-high transmission bandwidth and excellent optical properties.
XING Rui, YANG Zhiqun, YAN Hui, LIU Yaping, WANG Xutao, WANG Yanze, ZHANG Wendou, ZHANG Lin   +7 more
doaj  

Gas temperature measurements using the dual-line detection Rayleigh scattering technique [PDF]

A new laser-induced Rayleigh scattering method is presented for the improved temperature diagnostics of gas flows. In the present technique, the two lines of a copper vapor laser are used to obtain the time and space resolved temperature. A single set of
Annen, Kurt D., Otugen, M. Volkan, Seasholtz, Richard G.   +2 more
core   +1 more source

Improvement in Rayleigh Scattering Measurement Accuracy [PDF]

, 2012
Spectroscopic Rayleigh scattering is an established flow diagnostic that has the ability to provide simultaneous velocity, density, and temperature measurements. The Fabry-Perot interferometer or etalon is a commonly employed instrument for resolving the
Clem, Michelle M., Elam, Kristie A., Fagan, Amy F.   +2 more
core   +1 more source

Quantum Chemistry Investigation of Linear and Nonlinear (chir)optical Properties of Oligoamide Foldamers

ChemistryEurope, EarlyView.
The linear and nonlinear (chir)optical properties of four oligoamide foldamers with different donor groups are studied by means of time‐dependent density functional theory calculations. It is shown that stronger donors yield larger hyperpolarizabilities due to low‐lying charge–transfer states. The agreement with the experiments concerning the key bands
Komlanvi Sèvi Kaka, Andrea Bonvicini, Yann Ferrand, Céline Olivier, Vincent Rodriguez, Benoît Champagne   +5 more
wiley   +1 more source

Ribosome formation from subunits studied by stopped-flow and Rayleigh light scattering

Biological Procedures Online, 2004
Light scattering and standard stopped-flow techniques were used to monitor rapid association of ribosomal subunits during initiation of eubacterial protein synthesis.
Antoun Ayman, Pavlov Michael Y., Tenson Tanel, Ehrenberg Måns   +3 more
doaj   +1 more source

Second-Order Nonlinearity of Graphene Quantum Dots Measured by Hyper-Rayleigh Scattering. [PDF]

Materials (Basel), 2023
Silva-Neto ML, Barbosa-Silva R, Boudebs G, de Araújo CB.   +3 more
europepmc   +1 more source