Results 71 to 80 of about 1,701,822 (335)
Stretching the Printability Metric in Direct‐Ink Writing with Highly Extensible Yield‐Stress Fluids
Advanced Functional Materials, EarlyView.This study introduces “drawability” as a new metric for assessing printability in direct‐ink writing, focusing on gap‐spanning performance and speed robustness. By designing yield‐stress fluids with high extensibility, we demonstrate that extensional strain‐to‐break significantly enhances printability.
Chaimongkol Saengow +9 more
wiley +1 more source
Finite Element Analysis of Permanent Magnet Synchronous Motors Subjected to Symmetrical Voltage Sags
Iranian Journal of Electrical and Electronic Engineering, 2014 This paper studies the effects of symmetrical voltage sags on the operational characteristics of a Permanent Magnet Synchronous Motor (PMSM) by Finite Element Method (FEM).
H. Fallah khoshkar +2 more
doaj
Advanced Functional Materials, EarlyView.Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco +7 more
wiley +1 more source
Ingeniería e Investigación, 2011 This paper proposes k-means clustering algorithm to identify voltage sags patterns and group fault zones with similar impact in high and medium voltage electric. The proposed methodology comprises three stages.
Miguel Romero +2 more
doaj
A Decision Tree and S-Transform Based Approach for Power Quality Disturbances Classification [PDF]
, 2013 In this paper, it is presented an automated classification based on S-transform as feature extraction tool and Decision Tree as algorithm classifier. The signals generated according to mathematical models, including complex disturbances, have been used ...
Aguado-Sanchez, Jose Antonio +5 more
core +1 more source
Structural and Chemical Engineering of Sub‐Nanochannel Membranes Toward Ion Selectivity
Advanced Functional Materials, EarlyView.This review summarizes recent advances in structural and chemical engineering of sub‐nanochannels for ion selectivity. We first introduce fundamental ion transport mechanisms within sub‐nanochannels, followed by strategies to tune pore size, geometry, and surface functionalities, categorized into charge‐based, ion‐recognition, hydrophilic bonding, and ...
Yuyu Su +5 more
wiley +1 more source
Iterative Synthesis of Pentacene Derivatives with Continuous Boron–Oxygen Bonds
Angewandte Chemie, EarlyView.An iterative synthetic strategy enables the controlled introduction of continuous multiple B–O bonds at the zigzag edge of acenes. A simple two‐step cycle—ipso iodination and Suzuki cross‐coupling/condensation—efficiently constructs BO‐acenes ranging from naphthalene to pentacene.
Seonghwa Jeong +8 more
wiley +2 more sources
IEEE Access, 2020 This work deals with the statistical analysis of additive noise impact on the space-vector ellipse parameters used to detect and classify three-phase voltage sags. In fact, since voltage waveforms are always corrupted by additive noise and harmonics, the
Diego Bellan
doaj +1 more source
IEEE Access, 2018 Assessment of equipment trip is needed for proper estimation of interruption/disruption cost and voltage sag mitigation. The equipment trip depends on the severity of voltage sag and the tolerance of the equipment toward the sag.
C. Behera +5 more
semanticscholar +1 more source
Program latihan industri di Kolej Universiti Teknologi Tun Hussein Onn : kajian terhadap perlaksanaan sistem penilaian [PDF]
, 2004 Kajian yang dijalankan adalah bertajuk "Program Lalilian lndustri Di Kolej Universiti Teknologi Tun Hussein Onn : Kajian Terhadap Perlaksanaan Sistem Penilaian".
Mukhtar, Affidah Mardziah
core