Results 41 to 50 of about 104,564 (311)

Structure of Cuprammonium Regenerated Cellulose Hollow Fiber (BMM Hollow Fiber) for Virus Removal [PDF]

open access: yesPolymer Journal, 1990
An attempt to analyze the pore structure of the cuprammonium regenerated cellulose hollow fiber (BMM hollow fiber) in order to clear up its filtration mechanism was made. The electron microscopy was employed to get the concrete images of the structure.
Tsurumi, Takashi   +6 more
openaire   +1 more source

Digital Eversion of a Hollow Structure: An Application in Virtual Colonography [PDF]

open access: yesInternational Journal of Biomedical Imaging, 2008
A new methodology is presented for digital eversion of a hollow structure. The digital eversion is advantageous for better visualization of a larger portion of the inner surface with preservation of geometric relationship and without time‐consuming navigation.
Jun Zhao   +3 more
openaire   +3 more sources

Effect of Geometrical Parameters on the Mechanical Performance of Bamboo-Inspired Gradient Hollow-Strut Octet Lattice Structure Fabricated by Additive Manufacturing

open access: yesMicromachines
Hollow-strut metal lattice structures are currently attracting extensive attention due to their excellent mechanical performance. Inspired by the node structure of bamboo, this study aimed to investigate the mechanical performance of the gradient hollow ...
Junxian Ge   +8 more
doaj   +1 more source

Natural Halloysite-Templated Synthesis of Highly Graphitic Boron-Doped Hollow Carbon Nanocapsule Webs

open access: yesNanomaterials, 2022
Hollow carbon nanocapsules have been attracting growing interest due to their fascinating characteristics and extensive potential applications. In this work, a novel natural halloysite-templated synthesis approach for highly graphitic boron-doped hollow ...
Feng Chen   +5 more
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

From Hollow Nanosphere to Hollow Microsphere: Mild Buffer Provides Easy Access to Tunable Silica Structure

open access: yes, 2008
A facile synthesis method for producing silica hollow spheres from nano- to microsize level is realized by adjusting the hydrolysis and condensation kinetics of silane precursors in a mild buffer solution (NaH2PO4-Na2HPO4, pH approximate to 7.0) in the ...
Bai, S.   +13 more
core   +1 more source

Performance of Na-ion Supercapacitors Under Non-ambient Conditions—From Temperature to Magnetic Field Dependent Variation in Specific Capacitance

open access: yesFrontiers in Materials, 2019
Single phase NaFePO4 can works as economically viable cathode material for Na-systems similar to LiFePO4–a material that led to the commercialization of Li-ion based energy systems.
Sudipta Biswas   +2 more
doaj   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Porous silica ceramics with closed-cell structure prepared by inactive hollow spheres for heat insulation

open access: yes, 2016
Highly porous silica ceramics (PSCs) with closed-cell structure are fabricated via sintering of randomly packed hollow SiO2 spheres (HSSs), and the influences of sintering parameters, additives and physical features of HSSs on the structure and ...
Sun, Zhiqiang   +3 more
core   +1 more source

Hierarchical structure regulation for sequential steps in solar vapor generation

open access: yesEcoMat, 2023
Including the transpiration of leaves, water evaporation from solar irradiation is a universal phenomenon in nature. Currently, solar vapor generation allows clean water to be obtained from various waterbodies.
Xuanbo Chen   +4 more
doaj   +1 more source

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