Results 131 to 140 of about 88,997 (305)

Detecção e controle de oscilações eletromecânicas usando sistemas de medição fasorial sincronizada [PDF]

, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia ElétricaNeste documento são apresentadas técnicas de processamento digital de sinais com a finalidade de analisar oscilaçoes e detectar
Prioste, Fernando Buzzulini
core  

A Direction‐Aware Piezo‐Transmittance Strain Sensor via Engineered Alignment of Carbon Nanotubes (CNTs)

Advanced Materials Technologies, EarlyView.
A direction‐aware piezo‐transmittance strain sensor is realized through the engineered alignment of carbon nanotubes. This anisotropic architecture instantaneously modulates optical transmittance, achieving ultra‐high sensitivity and exceptionally low hysteresis. By effectively eliminating signal crosstalk to precisely decouple multidirectional strains,
Byeongmin Kang, Kwangjun Kim, Jimin Gu, Junseong Ahn, Yongrok Jeong, Ji‐Hwan Ha, Sohee Jeon, Soonhyoung Hwang, Byung‐Ho Kang, Jihyeon Ahn, Jong‐An Choi, Minwook Kim, Yeonguk Jung, Jun‐Ho Jeong, Jong G. Ok, Inkyu Park   +15 more
wiley   +1 more source

High‐Performance Piezoelectric Nanogenerators Based on Wurtzite BeO Nanowire Arrays

Advanced Materials Technologies, EarlyView.
This study demonstrates high‐performance piezoelectric nanogenerators based on 1D BeO nanowire arrays. The BeO nanowires exhibit a high piezoelectric coefficient (∼15.8 pm V−1) and deliver an output voltage of ∼26.1 V and power density of ∼0.32 µW cm−2.
Yoonseo Jang, Jihyeon Park, Seoyeah Oh, Jonghyun Bae, Prakash R. Sultane, Christopher W. Bielawski, Jiwon Kim, Jungwoo Oh   +7 more
wiley   +1 more source

Theoretical Analysis and Numerical Simulation Research on the Response of Inertial Switches

Micromachines
This paper focuses on inertial switches, which are vital in multiple fields. A theoretical analysis model based on the spring-mass model was proposed, aiming to acquire the mechanical performance of the inertial switch under different loading conditions ...
Shaokang Cui, Jiachen Hao, Sen Wang, Fukai Wu, Pengzhao Xu   +4 more
doaj   +1 more source

Multiplace chamber’s electromechanical scheme.

, 2018
Multiplace chamber’s electromechanical scheme.
Luis Gracia (2127265), Luis M. de Paco (5594054), Carlos Perez-Vidal (430388), Jose M. de Paco (5594051)   +3 more
core   +1 more source

Nature‐Derived Chitosan Biopolymer: A Promising Candidate for Sustainable Electronics

Advanced Materials Technologies, EarlyView.
In the creation of environmentally friendly devices, nature‐derived chitosan biopolymer is a promising contender for sustainable electronic research. It can be utilized to create more ecologically friendly scalable gadgets and has a variety of uses in different active layers of electronics.
Joshua McDonald, Ali Nawaz, Amandeep Singh, Prashant Sonar   +3 more
wiley   +1 more source

New Applications of a Model of Electromechanical Impedance for SHM

The paper focuses on the further development of the model of the electromechanical impedance (EMI) of the piezoceramics transducer (PZT) and its application for aircraft structural health monitoring (SHM).
Pavelko, Vitālijs
core  

Strain‐Activated Mechanical Metamaterial With Programmable Dual‐Phase Stiffness and Enhanced Energy Absorption

Advanced Materials Technologies, EarlyView.
A strain‐activated mechanical metamaterial is developed to achieve programmable dual‐phase stiffness through an intrinsic geometric locking mechanism. Finite element modeling and parametric analysis identify the key design parameters governing activation strain, stiffness transition, and energy absorption.
Ramin Yousefi‐Nooraie, Romain Lemoine, Mario Guagliano, Sara Bagherifard   +3 more
wiley   +1 more source

Some Applications of Electromechanical Impedance Technology for SHM

The paper focuses on the further development of the model of the electromechanical impedance (EMI) of the piezoceramics transducer (PZT) and its application for aircraft structural health monitoring (SHM). The opportunities of new model of any dimension (
Pavelko, Igors, Pavelko, Vitālijs, Ozoliņš, Ilmārs, Kuzņecovs, Sergejs   +3 more
core  

Programmable Crack Networks for Wide‐Range and Reversible Strain Sensing in Vertically Oriented van der Waals Molybdenum Disulfide Thin Films

Advanced Materials Technologies, EarlyView.
Vertically oriented van der Waals MoS2 thin films enable a mechanically programmable crack network for strain sensing. The initial mechanical programming protocol establishes a programmed crack configuration along weak interlayer and interdomain interfaces.
Yinli Wang, Hiroyuki Hirakata
wiley   +1 more source