Results 71 to 80 of about 4,519,794 (278)

An Efficient Immersed Boundary Method for Solving the Unsteady Flow through Actual Geometries of Reed Valves [PDF]

open access: yes, 2012
In refrigeration compressors, the suction and discharge valves are responsible for the retention of the refrigerant from the suction chamber to the cylinder and passage from the cylinder to the discharge chamber.
Barbi, Franco   +2 more
core   +1 more source

Enhanced Ferroelectric Phase Formation via Local Structure Modification in the Pre‐Crystalline State of Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Hafnium zirconium oxide thin films are grown using plasma‐enhanced atomic layer deposition with the addition of an atomic layer annealing (ALA) step. ALA leads to a change in the short‐range structure of the deposit and encourages formation of the ferroelectric Pca21 phase. The result is wake‐up‐free performance with films exposed to ALA.
Nicolas K. Lam   +18 more
wiley   +1 more source

Genetically Programmed Shape‐Morphing of Engineered Living Materials

open access: yesAdvanced Functional Materials, EarlyView.
Here, bacterial and mammalian engineered living materials (ELMs) are presented, in which living cells direct genetically programmed and enzymatically mediated shape‐morphing. The resulting deformation and shape‐recovery can be actuated in a genetically controlled manner by an ELM incorporating out‐of‐equilibrium counteracting biochemical reactions with
Jan Becker   +7 more
wiley   +1 more source

How is Nanoarchitectonics Shaping Extracellular Vesicle Research?

open access: yesAdvanced Healthcare Materials, EarlyView.
The convergence of nanoarchitectonics and extracellular vesicle biology is reshaping next‐generation nanomedicine by enabling rationally designed nanostructures for enhanced EVs detection, engineering, and therapy. ABSTRACT Extracellular vesicles (EVs) have gained recognition as crucial mediators of cell‐to‐cell communication, holding immense potential
Madushani Dahanayake   +5 more
wiley   +1 more source

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

open access: yesAdvanced Materials, EarlyView.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son   +20 more
wiley   +1 more source

Numerical Study on Flow Characteristics in High Multi-Stage Pressure Reducing Valve

open access: yes, 2017
In this paper, a new high multi-stage pressure reducing valve (HMSPRV) is proposed. The main advantages include reducing noise and vibration, reducing energy consumption and dealing with complex conditions. As a new high pressure reducing valve, its flow
Fu-qiang Chen   +3 more
core   +1 more source

Optimal Control Drives Ultrafast and Energy‐Efficient Magnetization Switching in Van der Waals Magnets

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The accelerating expansion of data‐centric technologies is sharply increasing the energy burden of information storage, placing unprecedented pressure on the efficiency of magnetic switching. Conventional field‐driven reversal, once the foundation of magnetic memory, has become impractical in modern architectures due to its high energy cost ...
Mohammad H. Badarneh   +2 more
wiley   +1 more source

On the pressure variatino in a pipe-line with a pressure-reducing valve [PDF]

open access: yes, 1983
The relationship between the head loss coefficient of the valve caused by the periodic time of vibration and that of the pressure head in a pipe system with a pressure reducing valve are discussed.
ニシヤマ, ソウイチ   +2 more
core   +1 more source

Partial vitreous occlusion of Ahmed glaucoma valve implant with controlled intraocular pressure: a case report

open access: yesJournal of Medical Case Reports
Background The Ahmed glaucoma valve implant is effective in reducing intraocular pressure, yet it poses a risk of complications such as vitreous occlusion of the tube, potentially resulting in elevated intraocular pressure or retinal issues.
Yun Jeong Lee
doaj   +1 more source

Pressure Reducing Valve Characterization for Pipe System Management

open access: yesProcedia Engineering, 2016
AbstractPressure control strategy through Pressure Reducing Valves (PRVs) has been deeply investigated as management strategy, aimed at water leakage reduction avoiding very expensive pipe replacement programmes. On the contrary, few experimental data are available in literature, particularly in unsteady-state conditions.
MENICONI, SILVIA   +4 more
openaire   +2 more sources

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