Results 191 to 200 of about 236,146 (309)

Coherent Terahertz Hyper‐Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
In this paper, we review our recent discovery of a novel nonlinear effect in the terahertz frequency range, which we have termed terahertz hyper‐Raman (THYR) spectroscopy. This technique shares many characteristics with conventional hyper‐Raman spectroscopy but is applied within the THz spectrum.
Domenico Paparo, Anna Martinez, Andrea Rubano   +2 more
wiley   +1 more source

Gating-spring stiffness increases outer-hair-cell bundle stiffness, damping, and receptor current. [PDF]

Sci Rep
Zhu Z, Reid W, Ó Maoiléidigh D.
europepmc   +1 more source

Low‐Frequency Raman Spectroscopy of Polymers

Macromolecular Chemistry and Physics, EarlyView.
Recent advances have made low‐frequency Raman spectroscopy accessible to the wider scientific community. This review discusses how low‐frequency Raman is particularly useful for researchers investigating polymers because the technique can help determine both the local and long‐range structure of materials, their thermodynamic properties, and their ...
Kayla A. Bensley, Robert V. Chimenti, Samuel E. Lofland   +2 more
wiley   +1 more source

Influence of Temperature on the Damping Properties of Selected Viscoelastic Materials. [PDF]

Materials (Basel)
Witek L, Łabuński P.
europepmc   +1 more source

Sound‐Insulation Performance of Polylactic Acid Parts 3D Printed by Fused Filament Fabrication with Functionally Graded Porous Structure for Effective Noise Reduction

Macromolecular Materials and Engineering, EarlyView.
This study examines the sound absorption properties of fused filament fabrication (FFF) 3D‐printed polylactic acid parts with functionally graded porous structures and controlled pore sizes. It analyzes the influence of infill densities on acoustic performance of printed parts.
Reza Navidpour, Taher Azdast, Rezgar Hasanzadeh, Milad Moradian, Peyman Mihankhah, Asghar Rasouli   +5 more
wiley   +1 more source

Study on nonlinear vibration characteristics of elastic web herringbone gear transmission. [PDF]

Sci Rep
Li Z, Wang S, Liu L.
europepmc   +1 more source

Microphase Separation of Poly(2‐(Dimethylamino)Ethyl Methacrylate)‐b‐Poly(Tetrahydropyranyl Methacrylate) Diblock Copolymer Thin Films

Macromolecular Rapid Communications, EarlyView.
The microphase separation of thin films of symmetric polymethacrylate‐based diblock copolymers comprising two chemically similar blocks, poly(2‐(dimethylamino)ethyl methacrylate) and poly(tetrahydropyranyl methacylate), is reported. The ordering of these weakly segregated diblock copolymers into lamellae structures parallel to the external surfaces is ...
Theodore Manouras, Apostolos Vagias, Eleftherios Koufakis, Spiros H. Anastasiadis, Peter Müller‐Buschbaum, Maria Vamvakaki   +5 more
wiley   +1 more source

Annular two-phase flow in a small diameter tube: OpenFOAM simulations with turbulence damping vs optical measurements

International Journal of Thermofluids
In this work, numerical simulations are performed to predict two-phase annular flow of refrigerant R245fa inside a 3.4 mm diameter vertical channel. The VOF (Volume of Fluid) method implemented in an OpenFOAM solver is used to accurately track the vapor ...
Emanuele Zanetti, Arianna Berto, Stefano Bortolin, Mirco Magnini, Davide Del Col   +4 more
doaj  

Enhanced low-frequency wideband vibration mitigation of an acoustic black hole beam utilizing coupled distributed dynamic absorbers. [PDF]

Sci Rep
Jia X, Deng F, Yu Y, Xu F, Xie Y, Wen J.
europepmc   +1 more source

A Perspective of Multi‐Reflecting TOF MS

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Time‐of‐flight mass spectrometry (TOF MS) excels in rapid and high‐sensitivity analysis, making it a cornerstone of analytical chemistry. But as sample complexity explodes in omics studies, so does the need for higher resolving power to ensure accurate results.
A. N. Verenchikov, V. V. Makarov, A. V. Vorobyev, S. N. Kirillov   +3 more
wiley   +1 more source