Results 111 to 120 of about 38,900 (302)

Influence of electrostatics upon electrospray with the intention of application to colloid thrusters

open access: yes, 2011
PhDA thorough experimental and theoretical characterization of the effect of electrostatics on the electrospray process, focusing particularly on the flow rate sensitivity to the applied potential difference (voltage), has been completed.
Ryan, Charles N., Ryan, Charles N
core  

Large‐Scale and Cost‐Effective Fabrication of Ultra‐Thin, Biodegradable Microelectrode Arrays and Pressure Sensors Using Laser Micromachining

open access: yesAdvanced Materials Technologies, EarlyView.
A mask‐free and cost‐effective UV‐pico‐second laser‐based microfabrication method is proposed to fabricate large‐area biodegradable microelectrode arrays and pressure sensors. These devices demonstrate low impedance, good conformability, excellent biocompatibility, and rapid degradation, providing a new route for next‐generation transient electronics ...
Bhavani Prasad Yalagala   +5 more
wiley   +1 more source

Characterization of Droplet Formation in Ultrasonic Spray Coating: Influence of Ink Formulation Using Phase Doppler Anemometry and Machine Learning

open access: yesAdvanced Materials Technologies, EarlyView.
This study explores how machine learning models, trained on small experimental datasets obtained via Phase Doppler Anemometry (PDA), can accurately predict droplet size (D32) in ultrasonic spray coating (USSC). By capturing the influence of ink complexity (solvent, polymer, nanoparticles), power, and flow rate, the model enables precise droplet control
Pieter Verding   +5 more
wiley   +1 more source

Feasibility Study on Unblocking Submarine Pipeline with the Coiled Tubing and the High-pressure Water Jet

open access: yesShiyou jixie, 2017
At present, there is no cost-effective method to deal with the blocking of submarine oil and gas pipelines. Based on the analysis of the operating environment of the submarine pipeline, and referring to the previous operating cases, taking coiled tubing ...
Ma Jing   +5 more
doaj  

Minimal water-jet hydrodissection

open access: yes, 2017
Ahmet Taş Private ODAK Eye Diseases Center, Sincan, Ankara, Turkey Abstract: This paper presents a hydrodissection technique performed with high-speed pulse injection of only 0.1 cc liquid and assess its efficacy, safety, and the level of reduction in ...
Taş A
core  

Deburring with high pressure water jet

open access: yes, 2022
S.139-165Das Entgraten mit dem Wasserstrahl ist eine zukunftsweisende Bearbeitungsmethode. Durch die hohe Flexibilität hinsichtlich des Werkstoffes und der zu bearbeitenden Geometrie ist mit dem Wasserstrahl eine wirtschaftliche Entfernung von Graten ...
Henning, A.
core  

Record Performance in Vertically Stacked, Solution‐Processed ZTO Schottky Diodes

open access: yesAdvanced Materials Technologies, EarlyView.
Schottky diodes based on solution processed sustainable zinc—tin–oxide thin films present an eco‐friendly and versatile alternative to conventional CMOS based technologies. Beyond state‐of‐the‐art performance for vertically stacked solution‐based oxide diodes was achieved, including rectification ratios exceeding nine orders of magnitude, and intrinsic
Carlos Silva   +10 more
wiley   +1 more source

Internal Structure of a Jet Nozzle for Coalbed Methane Mining Based on Airfoil Curves

open access: yesShock and Vibration, 2018
Based on airfoil curves that can effectively balance the rectification and drag reduction effects in flight hydrodynamics, we designed an internal streamline structure of jet nozzle for coalbed methane (CBM) mining. The three types of nozzles originating
Jian Chen   +3 more
doaj   +1 more source

Tunable Extraordinary Optical Transmission in the Long‐Wavelength Infrared Range Using Electrostatic MEMS Actuation

open access: yesAdvanced Materials Technologies, EarlyView.
A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik   +6 more
wiley   +1 more source

Additive Manufacturing of Patient‐Specific Intracranial Aneurysm Cell Culture Models

open access: yesAdvanced Materials Technologies, EarlyView.
Patient‐specific intracranial aneurysm models were fabricated using chocolate moulding, 3D printed water‐soluble cores, and direct resin 3D printing. Moulding PDMS around sacrificial cores made of chocolate or 3D printed water‐soluble resin yielded accurate, expandable, and endothelializable models that outperformed resin‐based approaches.
Chloe M. de Nys   +6 more
wiley   +1 more source

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