Results 41 to 50 of about 50,167 (262)

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

Análisis de cadenas de Markov y series de Fourier en una secuencia hemipelágica del Jurásico Superior de la Península Antártica

Latin American Journal of Sedimentology and Basin Analysis, 2021
La Formación Ameghino (Kimmeridgiano-Berriasiano), Cuenca Larsen, Península Antártica, está compuesta por una asociación de microfacies de pelitas con radiolarios (P1), pelitas negras (P2), pelitas bioturbadas y peloidales (P3), tobas (T) y areniscas (A)
Diego A. Kietzmann, José I. Cuitiño, Rubén A. Medina, Roberto A. Scasso   +3 more
doaj   +2 more sources

Análise de Fourier e Wavelets aplicada à temperatura do ar em diferentes tipologias de ocupação

Revista Brasileira de Engenharia Agrícola e Ambiental, 2013
Comumente, séries temporais de temperatura do ar são usadas nos estudos de clima devido à natureza temporal de seus sinais, que requerem investigações baseadas no espaço tempo-frequência a fim de revelar características espectrais em função do tempo.
Maricéia T. Vilani, Luciana Sanches
doaj   +1 more source

Constrained Fourier estimation of short-term time-series gene expression data reduces noise and improves clustering and gene regulatory network predictions

BMC Bioinformatics, 2022
Background Biological data suffers from noise that is inherent in the measurements. This is particularly true for time-series gene expression measurements.
Nadav Bar, Bahareh Nikparvar, Naresh Doni Jayavelu, Fabienne Krystin Roessler   +3 more
doaj   +1 more source

Series de Fourier diverxentes

, 2022
O obxectivo deste traballo, recollido no propio título, é a demostración da existencia de series de Fourier diverxentes. O documento estrutúrase en tres partes diferenciadas. A primeira na que se realiza un achegamento á teoría básica de series de Fourier, incluíndo definicións e resultados sobre converxencia das mesmas, e na que tamén se construirá ...
openaire   +1 more source

Exploring an Alternative to mRNA Vaccine Cold Chain Storage: MRNA‐Lipid Nanoparticle Stability When Dried in a Polymer Matrix

Advanced Functional Materials, EarlyView.
The nanostructure, size, and function of mRNA‐loaded lipid nanoparticles are evaluated before drying, within polymer microneedles, and after rehydration. The results reveal the polymer and LNP loadings required to recover nanostructure and preserve the delivery performance in dry‐state formulations.
Brendan P. Dyett, Shahad K. Alsaiari, John L. Daristotle, Timothy A. Forster, Alicia Lau, Dhruv Varshney, Rania Afaneh, Andrew R. Hanna, Charles Sloane, David Mankus, Haitao Yu, Jiali Zhai, DongSoo Yun, Lisa H. Tostanoski, Abigail Lytton‐Jean, Dan H. Barouch, Charlotte E. Conn, Robert Langer, Ana Jaklenec, Calum J. Drummond   +19 more
wiley   +1 more source

Modelo matemático para estimativa da temperatura média diária do ar no Estado de Goiás Mathematical model for estimating daily average air temperature in Goiás, Brazil

Pesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi desenvolver um modelo matemático de estimativa da temperatura média diária do ar no Estado de Goiás, que considera simultaneamente as variações espacial e temporal. O modelo foi desenvolvido por meio de uma combinação linear
Jorge Cesar dos Anjos Antonini, Euzebio Medrado Silva, Luiz Fernando Coutinho de Oliveira, Edson Eyji Sano   +3 more
doaj   +1 more source

Series de Fourier no armónicas

, 2023
Treballs Finals de Grau de Matemàtiques, Facultat de Matemàtiques, Universitat de Barcelona, Any: 2023, Director: Joaquim Ortega ...
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

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +1 more source