Results 131 to 140 of about 193,160 (256)

Tecnologias de ordenação escolar no século XIX Currículo e método intuitivo nas escolas primárias norte-americanas (1860-1880) [PDF]

, 2005
Este artigo consiste em um estudo sobre a construção do currículo da escola primária nos Estados Unidos e sobre a adoção do método intuitivo nesse país, no período de 1860 a 1880.
Souza, Rosa Fátima de
core  

Tuning Li+ and Na+ Functionality in Renewable Carbon Electroactive Material Through Site‐Specific Nanostructural Disorder

Advanced Science, EarlyView.
This study presents a selective thermal transformation of polycarbonate into hybrid carbon materials. The structured carbon enhances electrochemical performance, particularly in lithium‐ion systems. Investigations reveal improved bimetallic ion diffusivity through the hybrid microstructure, contributing to excellent charge kinetics.
Montajar Sarkar, Rumana Hossain, Jian Peng, Dilan Kumara Thilakarathna, Yu Wang, Yin Yao, Neeraj Sharma, Veena Sahajwalla   +7 more
wiley   +1 more source

Enantioselective Reductive Alkenylation of α‐CF2H (‐CF3) Amino Halides: Rapid Access to Chiral α‐CF2H (‐CF3) Allylamines

Advanced Science, EarlyView.
Difluoromethyl (CF2H) group, the bioisostere of hydroxyl thiol methyl or amide is privileged in medicinal chemistry due to hydrogen‐binding ability and lipophilic, metabolically stable, and chemical inert nature. However, enatioseleceive CF2H introduction remains challenging.
Peng Liu, Kuiliang Li, Yan He, Chen‐Hui Jiang, Ruo‐Xing Jin, Duo‐Duo Hu, Wei‐Cheng Zhao, Xuan Nie, Shang‐Zheng Sun, Xi‐Sheng Wang   +9 more
wiley   +1 more source

TEMPOS ENREDADOS: TEIAS DA CONDIÇÃO PROFESSOR

Trabalho & Educação, 2013
O trabalho analisa a experiência do tempo na vida dos professores, focalizando os segmentos da quintaà oitava séries do Ensino Fundamental e Médio. Mediante o pressuposto de que o tempo é umaconstrução histórico-social, parte dos sistemas simbólicos das ...
Inês Assunção de Castro Teixeira
doaj  

Study of Resistive Switching Dynamics and Memory States Equilibria in Analog Filamentary Conductive‐Metal‐Oxide/HfOx ReRAM via Compact Modeling

Advanced Electronic Materials, EarlyView.
A physics‐based compact model for Conductive‐Metal‐Oxide/HfOx ReRAM, accounting for ion dynamics, electronic conduction, and thermal effects, is presented. Accurate and versatile simulations of analog non‐volatile conductance modulation and memory state stabilization enable reliable circuit‐level studies, advancing the optimization of neuromorphic and ...
Matteo Galetta, Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Stephan Menzel, Antonio La Porta, Tommaso Stecconi, Folkert Horst, Bert Jan Offrein, Valeria Bragaglia   +9 more
wiley   +1 more source

APLICAÇÃO DO MODELO HARTT NO MONITORAMENTO DOS NÍVEIS FREÁTICOS DO SISTEMA AQUÍFERO BAURU.

Revista Águas Subterrâneas, 2015
O objetivo deste trabalho foi entender como o efeito da precipitação excedente acumulada ao longo do tempo afeta na disponibilidade hídrica e nas oscilações dos níveis freáticos do Sistema Aquífero Bauru (SAB).
Aira Nava, Rodrigo Lilla Manzione
doaj  

Resistência ao fogo de vigas parcialmente embebidas com betão [PDF]

, 2011
Neste artigo serão apresentados resultados dos ensaios de resistência ao fogo de elementos de viga parcialmente embebidos com betão. Os elementos de viga foram ensaiados à flexão, com aplicação de uma carga constante localizada a meio vão, submetida a ...
Mesquita, L.M.R., Piloto, P.A.G., Ramos Gavilán, Ana Belén   +2 more
core  

Aqueous Zinc‐Based Batteries: Active Materials, Device Design, and Future Perspectives

Advanced Energy Materials, EarlyView.
This review conducts a comprehensive analysis of aqueous zinc‐based batteries (AZBs) based on their intrinsic mechanisms, including redox reactions, ion intercalation reactions, alloying reactions, electrochemical double‐layer reactions, and mixed mechanisms, systematically discussing recent advancements in each type of AZBs.
Yan Ran, Fang Dong, Shuhui Sun, Yong Lei
wiley   +1 more source

How Halide Segregation Governs the Ion Density Evolution and Ionic Performance Losses: From Degradation to Recovery

Advanced Energy Materials, EarlyView.
Halide segregation (HS) in mixed‐halide wide‐bandgap (WBG) perovskites is key to the stability of perovskite‐based tandem cells and a central focus of large‐scale research efforts. Here, we find that the underlying reason for the poor stability of cells prone to HS is enhanced ionic losses during operation. Furthermore, we identified irreversible ionic
Nikhil Kalasariya, Paria Forozi Sowmeeh, Francisco Pena‐Camargo, Francesco Vanin, Tino Lukas, Yuxin Dong, Qifan Feng, Ziwei Liu, Waqar Ali Memon, Danpeng Gao, Jianqiu Gong, Xin Wu, Andres Felipe Castro Mendez, Jan Hagenberg, Zahra Abadi, Thomas Hultzsch, Xinyi Zhao, Sahil Shah, Hui Yu, Varun Srivastava, Jianbin Xu, Ni Zhao, Felix Lang, Zonglong Zhu, Martin Stolterfoht   +24 more
wiley   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source