Results 141 to 150 of about 4,727,160 (263)

Measuring Mass of Gas in Central Galaxies Using Weak Lensing and Satellite Kinematics in MOND

open access: yesThe Astrophysical Journal
In Milgrom’s MOdified Newtonian Dynamics (MOND) framework, the dynamical mass of a galaxy is fully determined by its baryonic matter distribution. Using this framework, we fit the distribution of cold and hot gas halos—focusing on the hot gas—around ...
Li Ma   +3 more
doaj   +1 more source

Simulation of the Rotational Molding Process of Polyethylene Using the Smoothed Particle Hydrodynamics Method

open access: yesPolymer Engineering &Science, EarlyView.
Numerical simulation of polyethylene rotational molding using the Smoothed Particle Hydrodynamics (SPH) method. ABSTRACT This work presents the development of a numerical model based on the smoothed particle hydrodynamics (SPH) method to simulate the rotational molding process of powder thermoplastic polymers, used in the manufacture of liners for high‐
Ali Nourreddine   +4 more
wiley   +1 more source

Higher-order Mean-motion Resonances Can Form in Type I Disk Migration

open access: yesThe Astrophysical Journal
Type I disk migration can form a chain of planets engaged in first-order mean-motion resonances (MMRs) parked at the disk inner edge. However, while second- or even third-order resonances were deemed unlikely due to their weaker strength, they have been ...
Finnegan M. Keller, Fei Dai, Wenrui Xu
doaj   +1 more source

Rheological Characterization of a Low‐Concentration Water‐Based Collagen Dispersion Under Extensional, Shear, and Oscillatory Deformation

open access: yesPolymer Engineering &Science, EarlyView.
Combined capillary and oscillatory rheology provided complementary insights into the linear, nonlinear, and extensional flow behavior of a 3 wt% collagen dispersion, improving the understanding of its processing‐relevant rheological characteristics. ABSTRACT This study presents an investigation of the extensional, shear, and oscillatory rheological ...
Fadi Alzarzouri   +3 more
wiley   +1 more source

Enhancing PET Printability via Solid‐State Polymerization: Structure‐Processing‐Properties Relationships

open access: yesPolymer Engineering &Science, EarlyView.
Solid‐state polymerization (SSP) enhances rheological properties, filament stability, and adjusts crystallization issues for improved PET 3D printability. ABSTRACT This paper aims to investigate the impact of solid‐state polymerization (SSP) on the printability of PET for 3D printing.
Benjamin Sandei   +5 more
wiley   +1 more source

Solids Conveying in Injection Molding Machines—Analytical Model for Smooth and Grooved Feed Sections Derived From DEM Simulations

open access: yesPolymer Engineering &Science, EarlyView.
Understanding Solids Conveying in Injection Molding Machines – Dimensions. ABSTRACT Solids conveying is a key aspect for the design of polymer processing machines, especially for processes with high screw speeds, grooved feed sections, and material with low bulk density.
Jan Landgraeber   +4 more
wiley   +1 more source

Effect of Mesoporous Bioactive Glass on the Morphology and Thermal Properties of PLA‐Based Biocomposites for Bone Tissue Engineering

open access: yesPolymer Engineering &Science, EarlyView.
Schematic overview of the preparation and characterization of PLA‐based biocomposites containing mesoporous bioactive glass, highlighting the relationship between particle morphology, composite properties, and their potential for bone regeneration. ABSTRACT The present study proposes the development of a potential biocomposite for bone regeneration by ...
Bruna Segat   +5 more
wiley   +1 more source

A Simple Rheology‐Based Framework for Selecting Printing Parameters in Extrusion‐Based Hydrogel Additive Manufacturing

open access: yesPolymer Engineering &Science, EarlyView.
An open analytical framework converts standard rheological measurements directly into the complete extrusion field and slicer‐ready printing parameters for Piston driven printers, enabling rapid operational window of printability in direct ink writing without CFD or machine learning. ABSTRACT Predicting whether a gel formulation will print successfully
Thiago M. C. Rodrigues   +3 more
wiley   +1 more source

Towards Sustainable PP Composites: The Roles of Pineapple Crown Fibers (PCFs) and Functional Additives on the PP Rheological and Viscoelastic Behaviors

open access: yesPolymer Engineering &Science, EarlyView.
Preparation and rheological characterization of polypropylene composites reinforced with pineapple crown fibers and compatibilized with organic acids. ABSTRACT This research presents a comprehensive rheological and viscoelastic study of polypropylene (PP) composites reinforced with pineapple crown fibers (PCF) and compatibilised using carboxylic acids (
Giordano Pierozan Bernardes   +2 more
wiley   +1 more source

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