Results 141 to 150 of about 288 (225)

[Sjögren syndrome]. [PDF]

Aten Primaria, 2009
Sorlí JV, Doménech IE, Zurián FJ, Gutiérrez VM, Castillo MM, García-Ribes M, Uriarte RO.   +6 more
europepmc   +1 more source

Material Characterization of Lignin‐Filled Polypropylene Composites

Journal of Applied Polymer Science, EarlyView.
Ground and spray‐dried lignin powders are compared as fillers for polypropylene composites. Differences in powder preparation methods are associated with differences in powder characteristics and composite behavior after melt compounding. Spray‐dried lignin produces smaller particles and fewer large agglomerates, while a 5 wt% lignin loading provides a
Sungjun Hwang, Stefan N. E. Johansson II, Yousoo Han, Douglas J. Gardner   +3 more
wiley   +1 more source

Mixing and Compounding of Graphene/High Density Polyethylene Nanocomposites Using Twin‐Screw and Octa‐Screw Extrusions: A Comparative Study

Journal of Applied Polymer Science, EarlyView.
Advanced octa‐screw extrusion offers a breakthrough in compounding high‐viscosity polymer nanocomposites. By comparing twin‐ and octa‐screw extruders, this study reveals that the octa‐screw's unique intermeshing geometry achieves superior graphene exfoliation while preventing thermal degradation.
Cheng‐Ying Liu, Akira Ishigami, Hiroshi Ito   +2 more
wiley   +1 more source

First‐Principles Study of Structural, Mechanical, Electronic, Thermodynamical, and Optical Properties of XGaO2 (X = Rb and Cs): Unlocking Its Green Energy Potential

Advanced Physics Research, EarlyView.
This study employs density functional theory (DFT) to investigate the structural, mechanical, electronic, optical, and thermodynamic properties of RbGaO2 and CsGaO2. The calculated band structures and band‐edge positions indicate semiconducting behavior and favorable alignment for photocatalytic dye degradation and hydrogen evolution, highlighting ...
Md. Zuel Rana, Md. Saiful Islam, Jahid Hasan, Abdul Barik, Mahamud Hasan Reedoy, Afroza Khatun, Md. Abde Mannaf, Ehesanul Hoq, Neelufar Panna, M. S. Alam   +9 more
wiley   +1 more source

Ab‐Initio Study of Structural, Magnetic, Optoelectronic and Thermophysical Properties of Heusler Compound HoPdBi

Advanced Physics Research, EarlyView.
The top panel shows the electronic band structure, which illustrates how the electronic energy varies with momentum along different high‐symmetry directions within the first Brillouin zone. Band structure determines the electronic character of a crystalline solid.
Tanvir Khan, F. Parvin, S. H. Naqib
wiley   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

The Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano, Matheus P. S. Rocha, Francisco P. Lima‐Filho, Aline M. Ghilardi   +3 more
wiley   +1 more source

[Management of sexually transmitted diseases in primary care (II). Genital ulcers. Vulvovaginitis. Human papilloma virus]. [PDF]

Aten Primaria
de la Poza Abad M, Roca Saumell C, Besa Castella M, Carrillo Muñoz R.   +3 more
europepmc   +1 more source

Caracterización mediante tribómetro del comportamiento piezoviscoso de un lubricante

El estudio de los contactos lubricados en régimen elastohidrodinámico (EHD) requiere en muchos casos de la correcta caracterización del comportamiento del coeficiente viscosidad-presión α del lubricante a presiones superiores al 1GPa. La definición de α, para su aplicación en cálculos EHD, se encuentra actualmente en discusión dentro de la comunidad ...
Chacón-Tanarro, Enrique, Echávarri-Otero, Javier, Franco Martínez, Francisco, López-Arrabal, Adrián   +3 more
openaire   +1 more source

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source