Results 81 to 90 of about 777,534 (397)

Laser-actuated mechanical device [PDF]

, 1974
Actuator is portable and can be used in high-temperature (over 500 C) environments by incorporating tungsten metal film and quartz window. Actuator can be triggered when it is not directly in laser beam path by utilizing fiber optics.
Murphy, A. J., Yang, L. C.
core   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

Advanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho, M. Naeem, T. H. C. Costa, M. S. Libório, J. C. A. Queiroz, C. B. B. Luna, R. R. M. Sousa, P. S. Vieira, E. M. Araújo   +8 more
wiley   +1 more source

New Internal Stress Driven on-Chip Micromachines for Extracting Mechanical Properties of Thin Films [PDF]

, 2006
A new concept of micromachines has been developed for measuring the mechanical properties of thin metallic films. The actuator is a beam undergoing large internal stresses built up during the deposition process.
André, Nicolas, Fabrègue, D., Pardoen, T., Raskin, J. P.   +3 more
core   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

Advanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco, Valerio Francesco Annese, Valerio Galli, Ilaria Penna, Debora Russo, Marina Veronesi, Rita Scarpelli, Stefania Sabella, Mario Caironi   +8 more
wiley   +1 more source

Actuator device schedules rate of valve closure [PDF]

, 1966
Prevalve actuator schedules the closure rate of a valve. The actuator is spring loaded to produce a normally open valve and pneumatically powered to close the valve.

core   +1 more source

Construction and Characterization of a Frequency-Controlled, Picometer-Resolution, Displacement Encoder-Actuator

, 2015
We have constructed an actuator/encoder whose generated displacement is controlled through the resonance frequency of a microwave cavity. A compact, 10-micrometer-range, digitally-controlled actuator executing frequency-coded displacement with picometer ...
Holczer, Karoly, Koulakis, John P., Stein, Michael   +2 more
core   +1 more source

Linear tubular switched reluctance motor for heart assistance circulatory: Analytical and finite element modeling [PDF]

, 2011
A linear tubular switched reluctance motor is presented. This actuator is devoted to be used as a left ventricular assist device (LVAD). In order to avoid thrombosis, this actuator includes pump and valve functions. By using a St. Jude Medical mechanical
Leprince, Pascal, Llibre, Jean-François, Martinez, Nicolas, Nogarède, Bertrand   +3 more
core   +3 more sources

Nonsmooth Quasistatic Modeling of Hydraulic Actuators [PDF]

, 2021
Ryo Kikuuwe, Tomofumi Okada, Hideo Yoshihara, Takayuki Doi, Takao Nanjo, Koji Yamashita   +5 more
openalex   +1 more source

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

Advanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang, Max Gießübel, Pankaj Dharpure, Andrea Albert, Vira Niestierkina, Paul Mulvaney, Mukundan Thelakkat, Jürgen Köhler   +7 more
wiley   +1 more source

Uncooled thermal infrared detection near the fundamental limit using a silicon nitride nanomechanical resonator with a broadband absorber

Communications Physics
Thermal infrared detection plays a critical role in applications like environmental monitoring and biomedical sensing. While many infrared detectors operate at room temperature with broadband spectral detection, their sensitivity is limited by noise from
Paolo Martini, Kostas Kanellopulos, Stefan Emminger, Niklas Luhmann, Markus Piller, Robert G. West, Silvan Schmid   +6 more
doaj   +1 more source