Results 31 to 40 of about 67,875 (246)

Black, Red and White: Characterization of Painting Materials on a Group of Bwa Masks from Burkina Faso

open access: yesApplied Sciences, 2023
The distinctive and visually striking wooden masks associated with the Bwa culture in Burkina Faso, West Africa, are carved from a soft wood into different shapes and display various geometrical patterns and symbols according to their purpose.
Clara Granzotto, Ken Sutherland
doaj   +1 more source

Chord Painting [PDF]

open access: yes, 2019
Music and painting are the most common chord phenomena, based on the physical and mathematical forms of chords, distributed as chord fields (quantum fields), respectively expressing time, space and their mirror relations, both of which are physical events and spiritual events. Strings are the spatial (geometric) semantics of chords, and
openaire   +1 more source

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

open access: yesAdvanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu   +4 more
wiley   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

Testing Homes for Potential Sources of Lead Exposure as a High‐School Science Project

open access: yesGeoHealth, 2021
High‐school students tested soil, paint, and water for lead (Pb) in a total of 80 houses in their town of Pelham, New York, where blood‐Pb data indicate relatively high levels of child exposure.
Evan M. Sefchick   +5 more
doaj   +1 more source

Combinatorial Synthesis of Next Generation Water‐Soluble Quaternized N‐Halamine Oligomers with Long‐Lasting Antiviral Properties

open access: yesAdvanced Functional Materials, EarlyView.
A combinatorial library of dual‐functional antiviral oligomers incorporating N‐halamine and quaternary ammonium functionalities is developed for long‐lasting antiviral activity. The lead materials exhibit rapid and durable antiviral activity against SARS‐CoV‐2 variants and influenza H1N1, with 4 to 5 log reduction in viral copies at 5 mg mL−1 ...
Eid Nassar‐Marjiya   +14 more
wiley   +1 more source

Plasma Treatment of Crosslinked Polyethylene Tubes for Improved Adhesion of Water-based Paints [PDF]

open access: yesMaterials Research, 2018
Cold plasmas fed trichloromethane-argon mixtures were used to treat cross-linked polyethylene (PE) to improve the adhesion of water-based paint. The effects of the plasma treatment undertaken at different percentages of CHCl3 in the plasma feed, CCl ...
Gabriel Ferreira Fernandes   +6 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Child Stunting and Temperature Anomalies: A Cross-Sectional Study in Burkina Faso and Kenya

open access: yesChildren
Background/Objectives: Extreme temperatures linked to climate change threaten child health, particularly in Sub-Saharan Africa where malnutrition remains widespread.
Tavis C. Mansfield   +2 more
doaj   +1 more source

Tintas anti-incrustantes de terceira geração: novos biocidas no ambiente aquático

open access: yesQuímica Nova, 2011
Antifouling agents have been used on vessels and boats since ancient civilizations. Thus, a brief history on the three generations of antifouling paints was provided in the present review.
Ítalo B. Castro   +2 more
doaj   +1 more source

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