Results 111 to 120 of about 49,702 (288)
Advanced Functional Materials, EarlyView.Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand +13 more
wiley +1 more source
Advanced Functional Materials, EarlyView.The nanostructure, size, and function of mRNA‐loaded lipid nanoparticles are evaluated before drying, within polymer microneedles, and after rehydration. The results reveal the polymer and LNP loadings required to recover nanostructure and preserve the delivery performance in dry‐state formulations.
Brendan P. Dyett +19 more
wiley +1 more source
Influence of Tip Clearance on the Flow Field and Aerodynamic Performance of the Centrifugal Impeller
, 2002 This paper studies numerically the influence of the tip clearance on the three-dimensional viscous flowfield and performance of the NASA Low-Speed Centrifugal Compressor (LSCC) impeller with a vaneless diffuser. A three-dimensional viscous code developed
GAO, Li-min +5 more
core +1 more source
, 2018 The tip leakage vortex is responsible for the generation of stagnation pressure losses inside the compressor along with the outbreak of rotating stall and surge. The current paper analytically proved that a part of the losses is proportional to the vortex circulation squared.
openaire +1 more source
Advanced Functional Materials, EarlyView.This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen +15 more
wiley +1 more source
Effect of impeller tip clearance on cavitation in an axial-flow pump
Engineering Science and Technology, an International JournalCavitation in axial-flow pumps reduces efficiency, induces noise and vibration, and causes wear on metallic components. The existence of a tip clearance, coupled with the high rotational speed of the impeller, creates a favorable condition for cavitation
Duc-Anh Nguyen +4 more
doaj +1 more source
Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN
Advanced Functional Materials, EarlyView.Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk +6 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A graded‐interface hydrogel‐polymer electrolyte decouples water activity to simultaneously stabilize the Zn anode and sustain cathode kinetics. The flexible design supports dendrite‐free cycling over 1600 h, high capacity in both MnO2 and V2O5 full cells, and stable pouch‐cell performance under bending, resolving the fundamental water conflict in ...
Shuyun Wang +8 more
wiley +1 more source
Loss mechanisms in turbine tip clearance flows
, 2011 Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2011.This electronic version was submitted by the student author.
Huang, Arthur (Arthur Chan-wei)
core
EFFECT OF TIP CLEARANCE ON A CENTRIFUGAL COMPRESSOR
, 2020 Computational analysis of low speed centrifugal compressor is carried out with finite volume method using ANSYS-CFX software. Centrifugal compressor impeller with three values of clearances i.e., 0%, 2% and 5% of blade height at trailing edge are ...
core