Results 91 to 100 of about 1,359,714 (335)

NUMERICAL PATH-INTEGRATION CALCULATION OF TRANSPORT PROPERTIES OF STAR POLYMERS AND THETA-DLA AGGREGATES

open access: yesCondensed Matter Physics, 2002
Although the calculation of transport properties of complex-shaped particles (Smoluchowski rate constants for diffusion-limited reactions, Stokes friction coefficient, virial coefficients for conductivity, viscosity and other transport properties) is ...
M.L.Mansfield, J.F.Douglas
doaj   +1 more source

Integrative Approaches for DNA Sequence‐Controlled Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
DNA is emerging as a programmable building block for functional materials with applications in biomimicry, biochemical, and mechanical information processing. The integration of simulations, experiments, and machine learning is explored as a means to bridge DNA sequences with macroscopic material properties, highlighting current advances and providing ...
Aaron Gadzekpo   +4 more
wiley   +1 more source

Study of Intrinsic Viscosity and Flow Activation Energy of Some Polymers in Different Solvents

open access: yesمجلة النهرين للعلوم الهندسية, 2017
The intrinsic viscosity has been studied for several polymers which are used in some industrial applications, such as polyisobutylene of types Oppanol B150, 200, and 250 with different molecular weights of 2.5, 4.1 and 5.9 million g/mole, respectively ...
Talib B. Kashmoula, Rabab I. Ahmed
doaj  

Biokomposit dari serat rami dan sekresi kutu lak termodifikasi dengan lateks terhidrasi dan tidak terhidrasi

open access: yesMajalah Kulit, Karet, dan Plastik, 2015
Biocomposites are composite materials comprising one or more phases derived from a biological origin. Biocomposite with natural matrix developed more rapidly because they are more environmentally safer.
Eli Rohaeti, Mujiyono, Rochmadi
doaj   +1 more source

Studies of Thermally Unstable Accretion Disks around Black Holes with Adaptive Pseudospectral Domain Decomposition Method. II. Limit-Cycle Behavior in accretion disks around Kerr black holes

open access: yes, 2011
For the first time ever, we derive equations governing the time-evolution of fully relativistic slim accretion disks in the Kerr metric, and numerically construct their detailed non-stationary models. We discuss applications of these general results to a
Abramowicz   +32 more
core   +1 more source

Endothelial Cells Angiogenesis in Sulfated Glycosaminoglycan (GAG) Hydrogels Enhanced by Bioactive Glass‐Released Ions

open access: yesAdvanced Functional Materials, EarlyView.
A mechanically tunable hydrogel composed of gelatin, chondroitin sulfate and laminin promotes angiogenesis in vitro without the supplement of growth factors. Endothelial cells morphogenesis was further enhanced by medium conditioned with bioactive glass 58S‐released ions (Ca and Si), thus offering a promising strategy to vascularize 3D tissue ...
Marco Piazzoni   +13 more
wiley   +1 more source

Barrier functions for Pucci-Heisenberg operators and applications

open access: yes, 2007
The aim of this article is the explicit construction of some barrier functions ("fundamental solutions") for the Pucci-Heisenberg operators. Using these functions we obtain the continuity property, up to the boundary, for the viscosity solution of fully ...
Cutri, Alessandra, Tchou, Nicoletta
core   +3 more sources

Solar Heating Enhanced Selective Recovery of Metal Ions Through Flowing Electrodes Enabled by Hybrid Carbon Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
A new electrochemical system based on a microporous hybrid of carbon nanoplatelets and nanotubes to selectively capture Ni2+ from wastewater is constructed. The system temperature rises rapidly when irradiated with sunlight, which enhances the Ni2+ removal rate by 250% and the selectivity by 53%, and the energy consumption is also reduced by 51 ...
Ziquan Wang   +11 more
wiley   +1 more source

Shape‐Morphing Nanoengineered Hydrogel Ribbons as Hemostats

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a self‐assembling, shape‐morphing nanoengineered hydrogel ribbon system that rapidly forms porous aggregates in situ for efficient hemostasis in trauma and surgical applications. Abstract Rapid and effective hemorrhage control remains a major challenge in trauma and surgical care, particularly for complex or noncompressible wounds.
Ryan Davis Jr   +9 more
wiley   +1 more source

Determinação da variação da viscosidade intrínseca do poli (tereftalato de etileno) de embalagens Determination of intrinsic viscosity variation for polyethyelene terephthalate's bottles

open access: yesPolímeros, 2004
O mercado de embalagens de poli(tereftalato de etileno) -PET- para acondicionamento de refrigerantes, água mineral, sucos concentrados e óleos comestíveis apresenta polímeros de diferentes tipos, que foram desenvolvidos para personalizar o atendimento a ...
Sandro D. Mancini   +2 more
doaj   +1 more source

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