Results 71 to 80 of about 9,717,661 (350)

Electron Pre-acceleration at Nonrelativistic High-Mach-number Perpendicular Shocks [PDF]

open access: yes, 2017
We perform particle-in-cell simulations of perpendicular nonrelativistic collisionless shocks to study electron heating and pre-acceleration for parameters that permit the extrapolation to the conditions at young supernova remnants.
A. Bohdan   +3 more
semanticscholar   +1 more source

Multiplexed Bio‐detection on an Interferometric Optical Waveguide Assembly

open access: yesAdvanced Materials Interfaces, EarlyView.
Multiplexed remote bio‐detection is demonstrated through an image conduit composed of 3012 individual cores and coated with interferometric layers. The proof of concept of biodetection is performed through the kinetic monitoring of two complementary DNA strands hybridization paving the way for applications in multiplex in situ biosensing, and ...
Oleksii Bratash   +6 more
wiley   +1 more source

Where have all the ions gone, long time passing? Tandem quadrupole mass spectrometers with atmospheric pressure ionization sensitivity gains since the mid‐1970s. A perspective

open access: yesRapid Communications in Mass Spectrometry, EarlyView., 2022
The gains in sensitivity since 1975 for quadrupole mass spectrometers equipped with atmospheric pressure ionization (API), and in particular triple quadrupole mass spectrometers (QqQs) since 1981, have been driven by the needs of the environmental, biomedical, agricultural, and other scientific research, industrial, regulatory, legal, and sporting ...
Tom Covey
wiley   +1 more source

Optical Second‐ and Third‐Order Nonlinearities in Plasma‐Enhanced Chemical Vapor Deposition‐Grown Silicon Oxides and Silicon Nitrides

open access: yesAdvanced Photonics Research, EarlyView.
Applying a static electric field EDC to plasma‐enhanced chemical vapor deposition‐grown nonstoichiometric silicon oxides and silicon nitrides creates a voltage‐controllable optical second‐order nonlinearity χquasi(2)$\chi_{\text{quasi}}^{\left(\right. 2 \left.\right)}$.
Laurids Wardenberg   +2 more
wiley   +1 more source

Scalability of Mach Number Effects on Noise Emitted by Side-by-Side Propellers

open access: yesApplied Sciences, 2022
This paper presents a numerical investigation of noise radiated by two side-by-side propellers, suitable for Distributed-Electric-Propulsion concepts. The focus is on the assessment of the variation of the effects of blade tip Mach number on the radiated
Caterina Poggi   +3 more
doaj   +1 more source

On a diphasic low mach number system [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2005
We propose a Diphasic Low Mach Number (DLMN) system for the modelling of diphasic flows without phase change at low Mach number, system which is an extension of the system proposed by Majda in [Center of Pure and Applied Mathematics, Berkeley, report No. 112] and [Combust. Sci. Tech. 42 (1985) 185–205] for low Mach number combustion problems.
Stéphane Dellacherie   +1 more
openaire   +2 more sources

Construction of modified Godunov-type schemes accurate at any Mach number for the compressible Euler system

open access: yes, 2016
This article is composed of three self-consistent chapters that can be read independently of each other. In Chapter 1, we define and we analyze the low Mach number problem through a linear analysis of a perturbed linear wave equation.
S. Dellacherie   +3 more
semanticscholar   +1 more source

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

open access: yesAdvanced Photonics Research, EarlyView.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu   +5 more
wiley   +1 more source

Interstellar Sonic and Alfvénic Mach Numbers and the Tsallis Distribution [PDF]

open access: yes, 2011
In an effort to characterize the Mach numbers of ISM magnetohydrodynamic (MHD) turbulence, we study the probability distribution functions (PDFs) of patial increments of density, velocity, and magnetic field for fourteen ideal isothermal MHD simulations at resolution 512^3.
arxiv   +1 more source

Optical Microfiber Biomedical Sensors: Classification, Applications, and Future Perspectives

open access: yesAdvanced Sensor Research, EarlyView.
This review delves deeply into the various types of optical microfiber biosensors, grounded firmly in their fundamental principles, and underscores their indispensable roles in pushing forward biomedical advancements. It examines the latest advancements, challenges faced by these biosensors in practical applications, future directions, breakthroughs ...
Lili Liang   +5 more
wiley   +1 more source

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