Results 91 to 100 of about 649 (214)

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

Requirements of UIC standards for brake triangles of railway vehicles

, 2023
The brake triangles are among the most important parts in the braking system of railway vehicles. Given that their quality and reliability directly affect the safety of rail traffic, the requirements for their suppliers are very rigorous. In this sense, the production of brake triangles can only be entrusted to those suppliers who are able to provide ...
Bižić, Milan, Petrović, Dragan
openaire   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

FUZZY MAXIMUM POWER POINT TRACKING CONTROLLERS FOR PHOTOVOLTAIC SYSTEMS: A COMPARATIVE ANALYSIS

Journal of Engineering and Sustainable Development
The design of an effective fuzzy maximum power point tracking controller plays a crucial aspect in enhancing the photovoltaic system’s efficiency.
Ammar AL-GIZI, Abbas MIRY, Hussein M. Hathal, Aurelian CRACIUNESCU   +3 more
doaj   +1 more source

Best Constants between Equivalent Norms in Lorentz Sequence Spaces

Journal of Function Spaces and Applications, 2012
We find the best constants in inequalities relating the standard norm, the dual norm, and the norm ∥x∥(p,s):=inf⁡{∑k∥x(k)∥p,s}, where the infimum is taken over all finite representations x=∑kx(k) in the classical Lorentz sequence spaces.
S. Barza, A. N. Marcoci, L. E. Persson
doaj   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

Advanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee, Byung Ik Park, Gihyeon Yim, Hyunjae Yoo, Sangjun Ma, Jundong Park, Jeong‐Yun Sun   +6 more
wiley   +1 more source

Design of Arbitrary Waveform Generator Based on Virtual Instrument Technology

Journal of Measurement Science and Instrumentation, 2011
A design of arbitrary waveform generator using NI PXI-5412 module（an arbitrary waveform generator）was provided in this paper,based on virtual instrument technology and LabVIEW.The generator can produce standard function waveforms,such as sine,triangle ...
Juan-juan ZHENG, An-li TAO, Shou-shan LIU, A-ying WEI   +3 more
doaj  

Correlated Metal LaNiO3 as a p‐Type Transparent Conductor

Advanced Functional Materials, EarlyView.
p‐type transparent conducting oxides are needed to enable superstrate solar cell geometries with n‐type absorbers. The p‐type correlated metal LaNiO3 combines high optical transmission with low electrical resistivity and is compatible with a range of scalable deposition processes.
Shivang Beniwal, Emmeline G. Poole, Jacob Plowman, Troy D. Manning, Teresa Partida Manzanera, Kevin Sanderson, Matthew S. Dyer, Matthew J. Rosseinsky, Jonathan Alaria   +8 more
wiley   +1 more source

Accelerating the k-Means++ Algorithm by Using Geometric Information

IEEE Access
Clustering is a fundamental task in data analysis with applications across a wide range of fields, such as computer vision, pattern recognition, and data mining.
Guillem Rodriguez Corominas, Maria J. Blesa, Christian Blum   +2 more
doaj   +1 more source