Results 51 to 60 of about 123,905 (313)

A novel soft cardiac assist device based on a dielectric elastomer augmented aorta: An in vivo study

open access: yesBioengineering & Translational Medicine, 2023
Although heart transplant is the preferred solution for patients suffering from heart failures, cardiac assist devices remain key substitute therapies.
Thomas Martinez   +13 more
doaj   +1 more source

COVID-19 Diagnostic Strategies Part II: Protein-Based Technologies

open access: yesBioengineering, 2021
After the initiation of the current outbreak, humans’ lives have been profoundly impacted by COVID-19. During the first months, no rapid and reliable detecting tool was readily available to sufficiently respond to the requirement of massive testing.
Tina Shaffaf, Ebrahim Ghafar-Zadeh
doaj   +1 more source

Large strain actuation in polypyrrole actuators [PDF]

open access: yesSPIE Proceedings, 2004
A typical limitation of polypyrrole based conducting polymer actuators is the low achievable active linear strains (2 % recoverable at 10 MPa, 7 % max) that these active materials exhibit when activated in a common propylene carbonate / tetraethylammonium hexafluorophosphate electrolyte.
Vandesteeg, Nathan A.   +4 more
openaire   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

Miniature and Micro-Actuators [PDF]

open access: yes
In this Special Issue, a wide range of topics are covered, including the design, fabrication, characterization, packaging, and system integration or final applications of miniature actuators, ranging from the centimeter down to the micrometer scale.

core   +1 more source

Magnetic Sensors Based on Amorphous Ferromagnetic Materials: A Review

open access: yesSensors, 2015
Currently there are many types of sensors that are used in lots of applications. Among these, magnetic sensors are a good alternative for the detection and measurement of different phenomena because they are a “simple” and readily available technology ...
Carlos Morón   +4 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Progressing towards high performance non-resonant piezoelectric stepping actuators [PDF]

open access: yes, 2023
Piezoelectric actuators are emerging as a promising technology with their potential to deliver a system with high specific power, accuracy, quick response and resolution.
Gupta, Amit   +8 more
core   +1 more source

Electropolymerized PEDOT:PSS Thin Films for Fabrication of Vertical Organic Electrochemical Transistors

open access: yesProceedings
This paper presents novel vertical organic electrochemical transistors (vOECTs) with thin transistor channels grown by the electropolymerization of the electrically conductive polymer PEDOT:PSS. This new fabrication method avoids the need for the further
Andreas Schander   +3 more
doaj   +1 more source

Motion of a Legged Bidirectional Miniature Piezoelectric Robot Based on Traveling Wave Generation

open access: yesMicromachines, 2020
This article reports on the locomotion performance of a miniature robot that features 3D-printed rigid legs driven by linear traveling waves (TWs). The robot structure was a millimeter-sized rectangular glass plate with two piezoelectric patches attached,
Jorge Hernando-García   +3 more
doaj   +1 more source

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