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Avaliação do processo SuperBatchTM para produção de polpa celulósica a partir de Bambusa vulgaris

Camila Sarto2012-09-21OpenAlex

\n O presente estudo teve como objetivo avaliar e comparar os processos de polpação kraft convencional e SuperBatchTM para Bambusa vulgaris visando a produção de polpa celulósica não branqueável (número kappa 58±2). A matéria prima foi caracterizada com relação à densidade básica, composição química e dimensões de fib…

biodegradable polymer synthesis and propertiesAgricultural and Food Sciences

Lipid Bilayer Formation in Aqueous Solutions of Ionic Liquids

Taylor Young2012-09-21VTechWorks (Virginia Tech)

The formation of lipid bilayer membranes between droplets of ionic liquid is presented as a means of forming functional bimolecular networks for use in sensor applications. Ionic liquids are salts that have a number of useful properties, such as low melting points making them liquid at room temperature and exceedingly…

Ionic liquids properties and applicationsCrystallization and Solubility StudiesFood Chemistry and Fat Analysis

Crystalline Ceramic Waste Forms: Report Detailing Data Collection In Support Of Potential FY13 Pilot Scale Melter Test

USDOE Office of Nuclear Energy (NE)、Kyle S. Brinkman、Savannah River Site (SRS), Aiken, SC (United States) 等 7 位作者2012-09-21OpenAlex

The research conducted in this work package is aimed at taking advantage of the long term thermodynamic stability of crystalline ceramics to create more durable waste forms (as compared to high level waste glass) in order to reduce the reliance on engineered and natural barrier systems. Durable ceramic waste forms tha…

Fusion materials and technologiesNuclear Materials and PropertiesNuclear materials and radiation effects

Extension of thermodynamic insights on batch extractive distillation to continuous operation

Weifeng Shen2012-09-21HAL (Le Centre pour la Communication Scientifique Directe)

Nous étudions la faisabilité du procédé de distillation extractive continue pour séparer des mélanges azéotropiques A-B à température de bulle minimale ou maximale, avec un tiers corps E lourd ou léger. Les mélanges ternaires A-B-E appartiennent aux classes 1.0-1-a et 1.0-2 qui se subdivisent chacune en deux souscas s…

Advanced Control Systems OptimizationProcess Optimization and IntegrationCrystallization and Solubility Studies

Theory of spin-orbit coupling at LaAlO3/SrTiO3 interfaces and SrTiO3 surfaces

Zhicheng Zhong、A. Tóth、Karsten Held2012-09-21arXiv (Cornell University)

The theoretical understanding of the spin-orbit coupling (SOC) effects at LaAlO$_{3}$/SrTiO$_{3}$ interfaces and SrTiO$_{3}$ surfaces is still in its infancy. We perform first-principles density-functional-theory calculations and derive from these a simple tight-binding Hamiltonian, through a Wannier function projecti…

Quantum and electron transport phenomenaSemiconductor materials and devicesElectronic and Structural Properties of Oxides

Fuel Age Impacts on Gaseous Fission Product Capture During Separations

Robert Jubin、Nicolas R. Soelberg、Denis M. Strachan 等 4 位作者2012-09-21OpenAlex

As a result of fuel reprocessing, volatile radionuclides will be released from the facility stack if no processes are put in place to remove them. The radionuclides that are of concern in this document are 3H, 14C, 85Kr, and 129 Rosnick 2007 I. The question we attempt to answer is how efficient must this removal proce…

Nuclear reactor physics and engineeringGraphite, nuclear technology, radiation studiesNuclear and radioactivity studies

Mechanical behaviour of wood fibre reinforced cementitious composites

M.G. Sierra Beltran、Erik Schlangen2012-09-21OpenAlex

Summary: This paper shows the possibility to use bundles of wood fibres as reinforcement in cementbased materials for specific ductility requirements. The strength of the fibres, the bond between the fibres and the cement matrix and the matrix properties were measured. Then the composites were designed. Under four-poi…

Structural Behavior of Reinforced ConcreteNatural Fiber Reinforced CompositesInnovative concrete reinforcement materials

Direct Measurement of Interaction Forces between Adsorbed Polymer Layers

Tharwat F. Tadros2012-09-21Chemistry Letters

Abstract The interaction forces between adsorbed layers of two graft copolymers were directly measured using surface force apparatus and atomic force microscopy. Two types of graft copolymers that were adsorbed on hydrophobic surfaces were used: (i) a graft copolymer consisting of poly(methyl methacrylate)/poly(methac…

Polymer Surface Interaction StudiesForce Microscopy Techniques and ApplicationsElectrostatics and Colloid Interactions

Gouy phase of optical beams in anisotropic indefinite metamaterials

Hai-Xu Cui、Fan Ye、Teng‐Fei Li 等 5 位作者2012-09-21Optics Letters

The Gouy phase shift of optical beams in anisotropic indefinite metamaterials displays extraordinary characteristics because of the presence of anisotropic magnetic and electric responses. We propose a simple interpretation of these characteristics from the unusual dispersion relation of the optical waves in the metam…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchOrbital Angular Momentum in Optics

Challenges in Long-term Operation of Nuclear Power Plants

OECD2012-09-21Nuclear Regulation

This document contains a compilation of consensus guidance for approval of long-term operation of nuclear power plants. This guidance is presented as fundamental and key principles that should govern decisions on authorisation for long-term operation. These principles allow for differences in national regulatory strat…

Nuclear reactor physics and engineeringGraphite, nuclear technology, radiation studiesNuclear and radioactivity studies

MICROSTRUCTURES AND PIEZOELECTRIC PROPERTIES OF KNNLST DOPING BCZT LEAD-FREE CERAMICS

Wei Xu、Yang Li、Jian‐Min Feng 等 4 位作者2012-09-21Functional Materials Letters

In this study, lead-free piezoelectric ceramics ( Na0.52K0.44Li0.04 )( Nb0.88Sb0.08Ta0.04 ) O3 -doped 0.52 Ba ( Zr 0.2 Ti 0.8) O 3-0.48( Ba 0.7 Ca 0.3) TiO 3( BCZT -x KNNLST ) are investigated. The effects of the KNNLST addition on the microstructures and the electrical properties of the ceramics sintered at the tempe…

Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesMicrowave Dielectric Ceramics Synthesis

Characterizing a novel method for blending regenerated cellulose structures with polyester filaments

Dariush Semnani、Zahra Mazrouei‐Sebdani、Bentolhoda Abedinzadeh2012-09-21Journal of Applied Polymer Science

Abstract The combination method of various manmade fibers with other fibers was developed to create special properties many years ago. Fibers can be mixed in a generation process, such as in solution or melt spinning, or in a fiber spinning process in the form of filaments, staple, sliver, yarn, and so on. Hybrid blen…

Advanced Cellulose Research StudiesElectrospun Nanofibers in Biomedical ApplicationsTextile materials and evaluations

Tetrakis (2-[2-(2-naphthyloxy)ethoxy]ethoxy) substituted metal-free and metallophthalocyanines and their aggregation behavior

İrfan Acar、Zekeriya Bıyıklıoğlu、Dilek Çakir 等 4 位作者2012-09-21Journal of Coordination Chemistry

İrfan Acara, Zekeriya Biyiklioğlub*, Dilek Çakirb & Halit Kantekinb a Department of Woodworking Industry Engineering , Karadeniz Technical University , 61830 OF, Trabzon , Turkey b Department of Chemistry , Karadeniz Technical University , 61080 Trabzon , Turkey * E-mail: zekeriya_61@yahoo.com Metal-free 4 and metallo…

Porphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research StudiesPhotochemistry and Electron Transfer Studies

Acetylene Ion Enhanced Bonding of PbS Nanoparticles to Quaterthiophene in Thin Films

F. Douglas Pleticha、Donghwa Lee、Susan B. Sinnott 等 6 位作者2012-09-21The Journal of Physical Chemistry C

Lead sulfide (PbS) nanoparticles of ∼3–5 nm average diameter were codeposited into quaterthiophene (4T) organic films, which in some cases, were additionally modified by simultaneous 50 eV acetylene ion bombardment. The film composition and PbS–4T bonding were monitored by X-ray photoelectron spectroscopy (XPS) and la…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsElectronic and Structural Properties of Oxides

Encyonopsis neerlandica, a new freshwater diatom species (Bacillariophyta) from moorland pools in The Netherlands

Bart Van de Vijver、Geurt Verweij、Jako van der Wal 等 4 位作者2012-09-21Phytotaxa

A new cymbelloid diatom species, Encyonopsis neerlandica sp. nov., is described from several moorland pools from The Netherlands. The new species belongs to the complex of species around E. microcephala. Based on light and detailed scanning electron microscopy, the morphology of Encyonopsis neerlandica is discussed an…

Aquatic Ecosystems and Phytoplankton DynamicsDiatoms and Algae ResearchAquatic Invertebrate Ecology and Behavior

Micro-, Meso-, and Macroporous Materials Obtained from a Highly Concentrated Emulsion of Decane/Brij 35/Water and Decane/Brij 700/Water

Esther Santamaría、Marta Cortés、Alicia Maestro 等 6 位作者2012-09-21Chemistry Letters

Abstract Mesoporous materials have high potential for use as catalyst supports. Different formation mechanisms for mesostructured materials have already been described. In the present study, different micro-, meso-, and macroporous materials were obtained from highly concentrated emulsions, and the possibility of raw…

Catalytic Processes in Materials ScienceMesoporous Materials and CatalysisCatalysis and Oxidation Reactions

Topology optimization of patch-typed left-handed metamaterial configurations for transmission performance within the radio frequency band based on the genetic algorithm

Yanzhang Dong、Shutian Liu2012-09-21Journal of Optics

For the requirement of broadband transmission with low attenuation within the radio frequency band, a topology optimization model of microstructure configuration design of patch-typed left-handed metamaterials is established, with the objective function defined by the ratio of the mean attenuation to the absolute left…

Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsMillimeter-Wave Propagation and Modeling

Numerical simulation of the effect of permeability on the hydrodynamics in a parallel-plate coculture flow chamber

Ye Zeng、Xing-Hong Yao、Xiaoheng Liu2012-09-21Computer Methods in Biomechanics & Biomedical Engineering

To study the effect of the porous membrane permeability on the hydrodynamics in a parallel-plate coculture flow chamber (PPcFC), we demonstrated the permeability of the porous membrane as a function of some parameters, such as porosity, membrane thickness, pore size and shape of the membrane. The effect of permeabilit…

Membrane Separation TechnologiesElectrospun Nanofibers in Biomedical Applications3D Printing in Biomedical Research