Results 91 to 100 of about 601,193 (260)

Problemas de consolidação na construção de aterros sobre solos moles [PDF]

open access: yes, 2008
Mestrado em Engenharia CivilAs transformações do mundo moderno exigem da Engenharia inovação nas técnicas utilizadas e nos materiais a empregar nas diversas obras. É propósito deste trabalho estudar as diferentes possibilidades de resolução dos problemas
Abrantes, Ana Catarina Leitão Silva
core  

Modelagem de solos não-saturados por elementos finitos.

open access: yesRevista Tecnologia, 2009
Este artigo apresenta características importantes e relevantes da modelagem dos solos não-saturados com a utilização do Método dos Elementos Finitos (MEF).
Francisco Chagas da Silva Filho
doaj  

Hybrid Solar Cell/Triboelectric Nanogenerator Based on Stable Two‐Dimensional Covalent Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
This study highlights the integration of stable two‐dimensional covalent organic framework (COF) films as photoactive layers in hybrid nanoenergy devices. The results demonstrate their capacity to generate electricity under both sunny and rainy conditions, showcasing versatility and resilience.
Joab D. Guerrero   +13 more
wiley   +1 more source

Atomized Oxidative Polymerization as a 3D Printing Platform for Binder‐Free, Bulk Conductive Polymer Architectures

open access: yesAdvanced Functional Materials, EarlyView.
Co‐delivery of electrosprayed EDOT and oxidant enables bulk oxidative polymerization during layer‐by‐layer fabrication, creating stable, highly conductive 3D PEDOT structures. This Atomized Oxidative Polymerization (AOP) overcomes the surface deposition‐only and matrix‐limited conductivity of conventional Vapor Phase Polymerization (VPP) and PEDOT:PSS ...
Tazdik Patwary Plateau   +2 more
wiley   +1 more source

Interlayer Expansion of Bulk MoS2 via Top‐Down Organic Pillaring Enables Tunable Li+ Intercalation and Controlled Solvent Co‐Intercalation

open access: yesAdvanced Functional Materials, EarlyView.
Top‐down organic pillaring expands the interlayer spacing of bulk‐sized MoS2 particles while preserving the bulk morphology. Operando X‐ray diffraction and electrochemical dilatometry show that MoS2‐bulk undergoes solvent co‐intercalation in diglyme electrolyte, causing large structural expansion, while pillared, expanded MoS2 suppresses solvent uptake
Jaehoon Choi   +8 more
wiley   +1 more source

Interface Effects in Ultrathin Silicon on Insulator Films

open access: yesAdvanced Functional Materials, EarlyView.
This work establishes a systematic framework to discriminate how bulk and interface phenomena affect charge transport in ultrathin P‐doped silicon‐on‐insulator (SOI) films. For Si films below 15 nm, electrical characterization demonstrates that interface states drive charge transport, shifting the metal‐insulator transition (MIT) critical dopant ...
Andrea Pulici   +8 more
wiley   +1 more source

ANÁLISE COMPARATIVA DO USO DE AMOSTRADORES NA QUALIDADE DE AMOSTRA DE SOLOS MOLES

open access: yesCongresso Brasileiro de Mecânica dos Solos e Engenharia Geotécnica, 2022
J. Aquino   +4 more
semanticscholar   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler   +4 more
wiley   +1 more source

Análise de estabilidade de um aterro sobre solo mole e medidas de melhorias nas condições do solo

open access: yesRevista de Engenharia Civil IMED, 2017
Um dos grandes desafios na engenharia é a implantação de obras sobre solos com baixa resistência, o solo mole, por exemplo, possui uma característica de baixa resistência, e, por estar sujeito a prolongados recalques merece um estudo criterioso. Esta pesquisa tem como objetivo analisar a estabilidade de um aterro sobre um trecho de solo mole e, a ...
openaire   +3 more sources

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