Results 81 to 90 of about 263,058 (283)

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg   +5 more
wiley   +1 more source

Feedback integrator with grounded capacitor Patent [PDF]

open access: yes, 1969
Feedback integrating circuit with grounded capacitor for signal ...
Deboo, G. J.
core   +1 more source

Enhanced Stability and Conductivity of (polyaniline/chitosan) Composites

open access: yesOrbital: The Electronic Journal of Chemistry, 2018
This study describes the synthesis of Pani-Chitosan soluble hybrid composite through an in situ polymerization of aniline in hydrochloride acid media in the presence of chitosan.
Fernando Ratuchne   +2 more
doaj  

Electrospun Ionic Nanofiber Membrane-Based Fast and Highly Sensitive Capacitive Pressure Sensor

open access: yesIEEE Access, 2019
Flexible pressure sensor has been widely used in different industries, but there are still some challenges for the fabrication of sensor with a superb sensitivity and large sensing range.
Xiaofeng Yang, Yishou Wang, Xinlin Qing
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Recent Progress in Oxide‐Based Na‐Ion Conductors

open access: yesAdvanced Engineering Materials, EarlyView.
Recent advances in oxide‐based sodium‐ion conductors are reviewed, focusing on β/β″‐alumina, NASICON‐type compounds, and Na5YSi4O12‐type (N5) silicates, together with emerging perovskite and layered oxides. Improvements in ionic conductivity, compositional tuning, and processing are highlighted.
Bowei Xun   +3 more
wiley   +1 more source

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini   +6 more
wiley   +1 more source

"Closed-loop" analysis of a thermo-charged capacitor

open access: yes, 2015
In this Letter, an explicit application of conservation of energy and zero net work principle around a closed path ("closed-loop" analysis) is carried out on a thermo-charged capacitor at equilibrium with ambient heat at uniform temperature.
D'Abramo, Germano
core  

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel   +6 more
wiley   +1 more source

Meteoroid sensing apparatus having a coincidence network connected to a pair of capacitors Patent [PDF]

open access: yes, 1967
Capacitor sandwich structure containing metal sheets of known thickness for counting penetration rates of ...
Davison, E. H.
core   +1 more source

Home - About - Disclaimer - Privacy