Results 131 to 140 of about 54,946 (273)

Pump having pistons and valves made of electroactive actuators [PDF]

open access: yes, 1997
The present invention provides a pump for inducing a displacement of a fluid from a first medium to a second medium, including a conduit coupled to the first and second media, a transducing material piston defining a pump chamber in the conduit and being
Bar-Cohen, Yoseph
core   +1 more source

Aggregation‐induced enhanced emission for quantification of recycled content in automotive plastics

open access: yesPolymer International, EarlyView.
Quantifying recycled content in four automotive plastics using aggregation‐induced enhanced emission showed that performance was highly dependent on both polymer and additive chemistries. Abstract The use of plastics in the automotive industry is increasing due to their versatility, light weight and affordability.
Saleh S Soomro   +2 more
wiley   +1 more source

The optical characterisation of spray and soot formation in a diesel engine [PDF]

open access: yes, 2010
Laser sheet drop-sizing (LSD) measurements of a Diesel spray and simultaneous laser induced incandescence/Mie scattering measurements of soot have been performed in an optically accessible, common rail, 1.9 litre, turbo-charged, direct injection Diesel ...
Greenhalgh, D. A., Lockett, R. D.
core  

Droplet size spectrum, velocity, angle and flow rate of pulse‐width‐modulated spray nozzles with adjuvants

open access: yesPest Management Science, EarlyView.
Optimizing PWM performance requires not only appropriate duty cycle selection, but also careful choice of adjuvant formulation tailored to each nozzle type. Drift control agents increased droplet size and reduced fine droplets, mitigating PWM‐induced variability. Decreasing the duty cycle consistently narrowed the spray angle.
João Paulo Arantes Rodrigues da Cunha   +3 more
wiley   +1 more source

Thermal and Catalytic Cracking of JP-10 for Pulse Detonation Engine Applications [PDF]

open access: yes, 2002
Practical air-breathing pulse detonation engines (PDE) will be based on storable liquid hydrocarbon fuels such as JP-10 or Jet A. However, such fuels are not optimal for PDE operation due to the high energy input required for direct initiation of a ...
Cooper, M., Shepherd, J. E.
core  

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone   +3 more
wiley   +1 more source

Readily Constructed Glass Piston Pump for Gas Recirculation. [PDF]

open access: yesACS Omega, 2020
Nielander AC   +9 more
europepmc   +1 more source

Apparatus for establishing flow of a fluid mass having a known velocity [PDF]

open access: yes, 1974
An apparatus for establishing a flow of fluid mass, such as gas, having a known velocity is introduced. The apparatus is characterized by an hermetically sealed chamber conforming to a closed-loop configuration and including a throat and a plurality of ...
Bate, E. R., Jr.   +3 more
core   +1 more source

Assessing Spatial Riverbed Clogging and Its Dynamics at the Reach Scale: A Coupled Approach Combining Field Measurements and 1D Hydro‐Sedimentary Numerical Modeling

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Assessing spatial and temporal variability of clogging in gravel‐bed rivers is challenging because field methods typically rely on labor‐intensive measurements of fine‐sediment content, porosity, or hydraulic conductivity. Clogging is also highly dynamic, driven by hydro‐sedimentary conditions; yet few studies have examined it at large scales ...
D. Hernandez, B. Camenen, A. Bonnefoy
wiley   +1 more source

Design of hydraulic output Stirling engine [PDF]

open access: yes
A hydraulic output system for the RE-1000 free piston stirling engine (FPSE) was designed. The hydraulic output system can be readily integrated with the existing hot section of RE-1000 FPSE.
Harvey, A. C., Lee, K., Toscano, W. M.
core   +1 more source

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