Results 41 to 50 of about 18,579 (261)
Advanced Optical Materials, EarlyView.ABSTRACT Photonic integrated circuits (PICs) can deliver unparalleled performance for future neuromorphic computing applications. Such neuromorphic PICs require a large number of tunable switches, which are typically realized with current‐controlled heaters, resulting in considerable energy consumption.
Jens Samland +10 more
wiley +1 more source
Particle Energization at a High Mach Number Perpendicular Shock: 1D Particle-in-cell Simulations
The Astrophysical Journal, 2023 In this paper, we use a 1D particle-in-cell simulation code to study particle preaccelerations at a high Mach number perpendicular shock. Our simulation results show that almost all of the injected particles can be reflected at the shock front, and then ...
Yufei Hao +6 more
doaj +1 more source
Engineering an Optogenetic pH‐Modulator in Bacteria
Advanced Science, EarlyView.ABSTRACT Cells in many naturally occurring organisms routinely cooperate to control their extracellular pH in a dynamic and reversible manner, but this capability has been underexplored in synthetic biology. Here, we sought to engineer a microbial system that switches between two states —high and low extracellular pH— with minimal human intervention ...
Jenevieve Kuang +7 more
wiley +1 more source
Scattering of Ions at a Rippled Shock
The Astrophysical Journal, 2023 In a collisionless shock the energy of the directed flow is converted to heating and acceleration of charged particles, and to magnetic compression. In low-Mach number shocks the downstream ion distribution is made of directly transmitted ions. In higher-
Michael Gedalin +2 more
doaj +1 more source
Effects of Periodic Incoming Wakes on the Aerodynamics of a High-Speed Low-Pressure Turbine Cascade
International Journal of Turbomachinery, Propulsion and Power, 2023 The influence of unsteady wakes incoming from the upstream stages is of high relevance in modern high-speed, low-pressure turbines (LPT) operating at transonic exit Mach numbers and low Reynolds numbers for their potential to trigger transition and ...
Loris Simonassi +2 more
doaj +1 more source
Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review
Advanced Science, EarlyView.Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh +8 more
wiley +1 more source
Numerical Investigation on Effect of Divergent Angle in Convergent-Divergent Rocket Engine Nozzle
Chemical Engineering Transactions, 2018 In rocket, a nozzle is used to control mass flow rate, velocity distribution and pressure of the exhaust gas that emerges out from the combustion chamber. The nozzle is used to alchemize the chemical and thermal energy generated in the combustion chamber
Raghu Ande, Venkata N. Kumar Yerraboina
doaj +1 more source
Frontiers in Astronomy and Space Sciences, 2022 During the main phase of many magnetic storms the solar wind Mach number is low and IMF magnitude is large. Under these conditions, the ionospheric potential saturates, and it becomes relatively insensitive to further increases in the IMF magnitude.
Fatemeh Bagheri, Ramon E. Lopez
doaj +1 more source
Low Mach number limit for the quantum hydrodynamics system [PDF]
Research in the Mathematical Sciences, 2016 In this paper we deal with the low Mach number limit for the system of quantum-hydrodynamics, far from the vortex nucleation regime. More precisely, in the framework of a periodic domain and ill-prepared initial data we prove strong convergence of the solutions towards regular solutions of the incompressible Euler system.
DONATELLI, DONATELLA +1 more
openaire +4 more sources
Polymer‐Based Multiparameter Sensing Integrated Photonic Chip for Health Monitoring
Advanced Science, EarlyView.A monolithic integrated photonic chip simultaneously measures blood glucose, pressure, temperature, ECG, and sweat glucose. Combining multiple Bragg grating sensors, Mach–Zehnder modulators, and an on–‐chip demodulation unit, this compact chip (1 cm × 0.5 cm) offers robust multiparameter detection.
Xiaolin Li +11 more
wiley +1 more source