Results 51 to 60 of about 419,301 (249)
, 2016 O concreto e um dos materiais mais usados na construcao civil no Brasil, e seu uso difundido advem da grande facilidade de execucao e adaptacao as mais diversas formas. Reduzir o consumo dos materiais envolvidos na producao do concreto e uma das maneiras
Jair Santoro, Moacir Kripka
semanticscholar +1 more source
Resolving the Structural Duality of Graphene Grain Boundaries
Advanced Materials, EarlyView.Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo +11 more
wiley +1 more source
Financiarización y burbuja especulativa en materias primas [PDF]
Ola Financiera, 2009 Wray en su artículo sobre la burbuja de los commodities rompe con la hipótesis de la oferta y demanda de los precios de las materias primas en el mercado de futuros.
L. Randall Wray
doaj
Frangos de corte: controle de qualidade de matérias primas e rações [PDF]
, 2006 TCC (graduação em Agronomia) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias ...
Fernandes, Gisele Machado
core
O mercado de matérias primas para indústria de fitoterápicos
, 2016 O intuito deste trabalho foi realizar um levantamento sobre os fornecedores de materias primas de uma industria de fitoterapicos de porte medio, classificando-os de acordo com a localizacao geografica e representatividade comercial.
Rafaela Arns de Castro, A. Albiero
semanticscholar +1 more source
Self‐Cooling Molecular Spin Qudits
Advanced Materials, EarlyView.A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios +12 more
wiley +1 more source
, 2016 Antecedentes: Los municipios de Cucuta, Los Patios, Villa del Rosario, El Zulia y San Cayetano, representan el 10% de la extension del departamento de Norte de Santander, y el 6,85% de su territorio lo ocupa la industria ceramica, la cual produce todo ...
J. Sánchez-Molina +2 more
semanticscholar +1 more source
Directional Flow of Confined Polaritons in CrSBr
Advanced Materials, EarlyView.CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak +10 more
wiley +1 more source
Matérias primas críticas para a Europa : o caso do rénio [PDF]
, 2014 Resumo de palestra inserida no Ciclo de Palestras 2014 do ...
Figueiredo, M. Ondina
core
COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption
Advanced Materials, EarlyView.A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas +11 more
wiley +1 more source