Results 71 to 80 of about 123,566 (261)

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

Capítulos da agroecologia postos em prática

open access: yesSustentabilidade em Debate, 2014
O livro nos faz refletir sobre dinâmicas relacionadas a mercados e políticas públicas para a agroecologia, indo muito além dos discursos que geralmente marcam o debate no campo agroecológico. É acima de tudo uma excelente síntese sobre a Rede Ecovida de
Cláudia de Souza
doaj  

Oxygen‐Tunnel Indium Tin Oxide Vertical Channel Transistors with Enhanced Current Density and Reliability for Monolithic 3D Compute‐In‐Memory Systems

open access: yesAdvanced Functional Materials, EarlyView.
Oxygen‐tunnel (OT) indium tin oxide (ITO) vertical channel transistors (VCTs) enable reliable, high‐density gain‐cell memory for monolithic 3D integration. A sandwiched SiN/SiO2/SiN OT stack selectively regulates oxygen transport, suppressing parasitic electrode oxidation while stabilizing channel oxygen vacancies, thereby suppressing carrier injection
Hyeonho Gu   +17 more
wiley   +1 more source

Ilhas:

open access: yesSustentabilidade em Debate, 2015
Steven Roger Fischer. Ilhas: de Atlântida a Zanzibar. São Paulo: Editora Unesp, 2014. 432p. [Tradução de Claudia Freire]. ISBN 978-85-393-0550-6. Preço: R$ 65,00. Inclui bibliografia, imagens e índice remissivo.
Marilia Teresinha de Sousa Machado
doaj  

Intrinsic Photoactive Star ZnPc–Poly(glutamate) Nanoplatforms for Multimodal Glioblastoma Therapy and Brain‐Targeted Delivery

open access: yesAdvanced Functional Materials, EarlyView.
An intrinsic photoactive star‐shaped zinc phtalocyanine‐poly(L‐glutamic acid) (ZnPc‐PGA) nanoplatform for multimodal glioblastoma (GBM) therapy and brain‐targeted elivery. A ZnPc‐PGA‐based multifunctional theranostic nanocarrier platform enables image‐guided, multimodal GBM therapy. ZnPc‐PGA nanocarriers support the integration of fluorescence imaging,
Amina Benaicha‐Fernández   +14 more
wiley   +1 more source

Sociedade cabocla:

open access: yesSustentabilidade em Debate, 2011
ADAMS, Cristina; MURRIETA, Rui; NEVES, Walter (Eds.). Sociedades caboclas amazônicas: modernidade e invisibilidade. São Paulo: Annablume, 2006. 364 p.; 16 X 23 cm. ISBN 85-7419-644-4.
Raquel Caribé Grando
doaj  

Studying and Analyzing the Urban Development Strategies (CDS) in Urban Tourism Development (Case Study: Chaboksar City) [PDF]

open access: yesجغرافیا و پایداری محیط, 2014
In urban tourism organizations, effective planning process, infrastructure development, financing, monitoring and directing efforts to identify potentialities, changing attitudes and culture, discovering new benefits of urban management are considered as
Ali Hosseini   +2 more
doaj  

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