Results 31 to 40 of about 2,258 (165)

Effect of Worm‐Like Amorphous Phase on Corrosion Resistance and Antibacterial Properties of NiTiCu Alloy

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT By adding CuO, the worm‐like amorphous phase and atomic clusters were simultaneously introduced, enabling the (Ni40Ti40Cu20)99.9O0.1 alloy micron columns to exhibit a uniform flow strain of over 40% and a strength of over 2.5 GPa during compression.
Huwen Ma   +13 more
wiley   +1 more source

Um é pouco, dois é bom, três é demais

open access: yesOpiniães, 2015
Contos.
openaire   +2 more sources

COMUNICAR É PRECISO

open access: yesArquivos Catarinenses de Medicina, 2022
Introdução: dispositivos e soluções em telessaúde e telemedicina desempenharam papel fundamental nas estratégias de assistência à saúde alinhadas à redução da transmissão viral no contexto da pandemia de COVID-19. Objetivo: identificar, caracterizar e analisar as iniciativas de telessaúde criadas e utilizadas pelo Sistema Municipal de Saúde do ...
Raphaella Tambosetti Dias   +2 more
openaire   +1 more source

High‐Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The massive stockpiling of copper slag (CS) presents severe environmental and resource‐waste challenges. Existing strategies for CS valorization typically yield low‐value‐added products. Herein, we propose an innovative hierarchical regulation approach to transform CS into high‐performance LiFePO4 (LFP) cathode materials.
Yuyun Li   +5 more
wiley   +1 more source

A pobreza é coercitiva?

open access: yesNovos Estudos - CEBRAP, 2021
O objetivo deste artigo é argumentar que situações de privação material são inerentemente coercitivas. Para isso, avaliam-se teorias da justiça para as quais a pobreza não representaria uma forma de intervenção coercitiva em contextos de livre-mercado. Argumenta-se aqui que a pobreza precisa ser concebida como uma posição social subordinada e, portanto,
openaire   +3 more sources

Effect of Heterogenous Gradient Structure Induced by High Cu Content on Nanocrystallization Process and Magnetic Properties of Fe‐Based Nanocrystalline Alloys

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The pre‐existing α‐Fe crystals have important effects on the precipitation and growth of nanocrystals and finally determine the comprehensive soft magnetic properties (SMPs) of the nanocrystalline alloys (NAs). In this work, a high content of Cu elements has been added to Nanomet‐type alloys to enhance the gradient heterogeneity in order to ...
Lei Xie   +6 more
wiley   +1 more source

Sexo é maldição, ódio é amor [PDF]

open access: yesRevista Latinoamericana de Psicopatologia Fundamental, 2015
e o amor. Porem nao se trata do amor idealizado, mas sim daquilo que ele comporta de paradoxal, da sua face maldita, obscena e tragica. E no estudo das obras literarias de Nelson Rodrigues, Gregorio de Matos e Fernando Pessoa que este livro demonstra a afirmacao freudiana de que os artistas ja sabiam o que mais tarde a psicana-lise veio revelar: a ...
openaire   +4 more sources

Cu‐Based Catalysts Design Toward Electrochemical CO2 Reduction to Valuable Multi‐Carbons Products

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Electrochemical reduction of CO2 to multi‐carbon products (e.g., C2+, ethene, ethanol, etc.) not only effectively decreases the CO2 concentration in atmosphere but also shows great potential economic benefits due to these exploitable value‐added products. The Cu‐based catalysts have caught much attention in CO2 electroreduction due to the good
Li‐Qing Li   +5 more
wiley   +1 more source

NH3-SCR performance over different types of Cu modified zeolites at low temperature(铜改性分子筛的低温NH3-SCR性能研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2014
采用浸渍法制备了 Cu-ZSM-5、Cu-beta、Cu-USY和Cu-SAPO-34四种铜改性分子筛催化剂,并评价了各个催化剂的NH3选择性催化还原(NH3-SCR)性能,同时通过X射线衍射(XRD)、H2程序升温还原(H2-TPR)、CO 吸附红外(CO-DRIFTS)、原位红外(In-situ FTIR)等实验技术研究了不同Cu-zeolite催化剂的物理化学性质及其对NH3-SCR性能的影响.结果表明,Cu-ZSM-5和Cu-beta在150 ℃时NO转化率可达到80%左右,表现出优异的低温活性,
YANGHaipeng(杨海鹏)   +2 more
doaj   +1 more source

Direct Observation of Matrix‐to‐Precipitate Elemental Diffusion in Severe Plastic Deformation

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Elemental redistribution, particularly the solute exchange between the matrix and precipitates, is a central issue in alloys subjected to severe plastic deformation (SPD). To elucidate this behavior, a nickel–aluminum bronze (NAB) alloy was processed by high‐pressure torsion (HPT), and its microstructural evolution was systematically ...
Xiaobin Yang   +9 more
wiley   +1 more source

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