Results 61 to 70 of about 289,031 (382)

Sol–Gel Synthesis of Ca2.5Ag0.3Sm0.2Co4O9 Semiconducting Materials for Thermoelectric Applications in Aerospace Systems

Advanced Engineering Materials, EarlyView.
Ca2.5Ag0.3Sm0.2Co4O9 semiconductor materials are synthesized and produced in this study using the sol–gel and cold pressing techniques for thermoelectric generator applications. As template samples are added, the Seebeck coefficient and power factor values rise, peaking at 800 °C for Ca2.5Ag0.3Sm0.2Co4O9 at 274.47 μV K−1 and 0.58 mW mK−2, respectively.
Enes Kilinc, Fatih Uysal, Mucahit Abdullah Sari, Huseyin Kurt, Erdal Celik   +4 more
wiley   +1 more source

Reducing Image Size and Noise Removal in Fast Object Detection using Wavelet Transform Neural Network [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2020
A robot detects its surroundings through camera information and its response requires a high-speed image process. Due to the increasing application of vision systems, various algorithms have been developed to increase speed of image processing.
mahmoud jeddi, Ahmad Khoogar, Ali Mehdipoor Omrani   +2 more
doaj  

A Weak SNR Signal Extraction Method for Near-Bit Attitude Parameters Based on DWT

Actuators, 2022
In practice, the near-bit signals are usually accompanied by noises generated by drilling tool vibration and high-speed rotary. This study introduces discrete wavelet transform to a well drilling area and presents a new weal signal extraction algorithm ...
Yanhui Mao, Yongmin Zhong, Yi Gao, Yuelong Wang   +3 more
doaj   +1 more source

Study of the Effect of Process Parameters and Heat Treatment on the Formation and Evolution of Directed Energy Deposition of IN718‐CuCrZr Interface

Advanced Engineering Materials, EarlyView.
Bimetallic structures of Inconel 718 and CuCrZr are fabricated using the laser powder directed energy deposition method. The study reveals a strong dependence of interface characteristics such as width and interfusion on processing and heat treatment strategies.
Hamidreza Javidrad, Bahattin Koc
wiley   +1 more source

A Novel Intelligent Method for the State of Charge Estimation of Lithium-Ion Batteries Using a Discrete Wavelet Transform-Based Wavelet Neural Network

, 2018
State of charge (SOC) estimation is becoming increasingly important, along with electric vehicle (EV) rapid development, while SOC is one of the most significant parameters for the battery management system, indicating remaining energy and ensuring the ...
Deyu Cui, Bizhong Xia, Ruifeng Zhang, Zhen Sun, Zizhou Lao, Wei Wang, Wei Sun, Yongzhi Lai, Mingwang Wang   +8 more
semanticscholar   +1 more source

Biologically‐Inspired Melt Electrowriting for the Generation of Highly Biomimetic Functional Myocardium

Advanced Functional Materials, EarlyView.
In this work, melt electrowriting is used to fabricate a 3D printed scaffold design that generates engineered cardiac tissues with in‐plane contraction, mimicking natural myocardium. It is shown that these tissues display advanced maturation and functionality.
Olalla Iglesias‐García, María Flandes‐Iparraguirre, Pilar Montero‐Calle, Ricardo M. Rosales, Asier Ullate‐Agote, Andrea Sánchez‐Bueno, Eduardo Larequi, Ilazki Anaut‐Lusar, Nicolás Laita, Aida Oliván‐Viguera, Elena Iglesias, Gloria Abizanda, Patxi San Martín‐Úriz, Paula Aguirre‐Ruiz, Xabier L. Aranguren, Manuel García de Yébenes, Juan José Gavira, Miguel Ángel Martínez, Estefanía Peña, Manuel Doblaré, Elena M. de‐Juan‐Pardo, Esther Pueyo, Felipe Prosper, Manuel M. Mazo Vega   +23 more
wiley   +1 more source

Supercompliant Lattice Boosts n‐type AgSbTe2 Thermoelectrics

Advanced Functional Materials, EarlyView.
The supercompliant lattice design enables the first realization of n‐type electrical transport in AgSbTe2 by overcoming intrinsic electron‐killer defects and exceeding the doping limits imposed by the conventional Hume–Rothery rule. Accordingly, the best performance n‐type Ag0.8Na0.3Sb0.6Bi0.4Te2 sample achieves a low κ of 0.27 W·m−1·K−1 that ...
Ruoyan Li, Shuai Han, Chunyu Zhang, Suyao Liu, Wen Yin, Yuanguang Xia, Pengfei Liu, Zhen‐Hua Ge, Dongyao Zhao, Bingchao Yang, Lulu Huang, Zhi Zhang, Yongsheng Zhang, Yuan Yu, Bangzhi Ge, Chongjian Zhou   +15 more
wiley   +1 more source

Multi - Wavelet Domain Reconstruction of Lost Blocks in Wireless Image Transmission [PDF]

Engineering and Technology Journal, 2005
bstract A fast scheme for multi - wavelet domain interpolation of lost image blocks in wireless image transmission is proposed in this paper . Instead of using common retransmission query protocols , the lost block is reconstructed in the multi - wavelet
Waleed Mahmoud, Mutaz Abdul - Wahab, Atheer Sabri   +2 more
doaj   +1 more source

Algorithms for segmented wavelet image transform [PDF]

, 2009
Tato bakalářská práce se zabývá waveletovou transformací signálu se zaměřením na obrazové signály. První část je věnována základním metodám zpracování signálu. Přes Fourierovu transformaci se dostává k základům waveletové transformace.
Kořínek, Petr
core  

Native Lignin Migration and Clustering in Wood: Superhydrophobic, Antimold, and Tribonegative Layers for Rain‐Driven Electrification

Advanced Functional Materials, EarlyView.
This study proposes a sustainable solution for rainwater‐driven energy harvesting by harnessing the intrinsic properties of lignin in wood. The first demonstration of an all‐wood tribonegative material for liquid–solid triboelectric nanogenerators is presented, eliminating the need for fluorine‐containing polymers and functional additives. Abstract The
Xuetong Shi, Ran Bi, Xin Shu, Peipei Wang, Yeedo Chun, Zhixiang Chen, Chris Zhou, Yi Lu, Orlando J. Rojas   +8 more
wiley   +1 more source