Results 81 to 90 of about 1,034 (248)
Improved Direct Ink Writing of Liquid Metal Foams via Liquid Additives
Advanced Electronic Materials, EarlyView.The ability to pattern liquid metal is useful for making soft electrical and thermal devices. Dispensing liquid metal from a nozzle naturally results in the formation of spheroidal droplets, making direct‐write printing challenging. Liquid metal foams containing pockets of air can extrude as filaments, albeit inconsistently.
Febby Krisnadi +3 more
wiley +1 more source
Stretchable Energy Storage with Eutectic Gallium Indium Alloy
Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.A highly stretchable liquid metal‐based electrode is developed via a one‐step process, retaining conductivity and capacitance after mechanical deformation up to 900% strain. The stretchable all‐solid‐state device provides a areal energy density of 43 µWh cm⁻2 after 150% strain.
Adit Gupta +6 more
wiley +1 more source
Well-posedness of logarithmic spiral vortex sheets
, 2023 We consider a family of 2D logarithmic spiral vortex sheets which include the celebrated spirals introduced by Prandtl (Vortr\"age aus dem Gebiete der Hydro- und Aero-dynamik, 1922) and by Alexander (Phys. Fluids, 1971).
Cieślak, T. +2 more
core
Natural Aging of Biomaterials in Ambient and Physiological Environments
Advanced NanoBiomed Research, EarlyView.Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley +1 more source
Golden Spirals Everywhere? Solutions for Fermi Questions, January 2025
The article discusses different types of spirals, including Archimedean, hyperbolic, and logarithmic spirals, with a focus on the golden ratio and golden spirals.
Adam, John
core +1 more source
, 2016 Triangles placed on a series of polygons can be arranged in circles or spirals, often resulting in visually striking patterns that can be used in graphic design.
Kabai, Sándor
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, 2013 Triangles placed on a series of polygons can be arranged in circles or spirals, often resulting in visually striking patterns that can be used in graphic design.
Kabai, Sándor
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, 2011 trigonometric functions, hyperbolas, parabolas, cardioids,lemniscates, logarithmic spiralSinusoidal spirals are given by the equation r^s=a^s(cos(s.t)), where s is rational.
Morris, Rob
core
Spirals in Hilbert space: With an application in information theory
, 2005 A (logarithmic) spiral of order α∈R is defined as a continuous path t⟼x(t) in a real Hilbert space such that∥x(t1+t)-x(t2+t)∥=eαt∥x(t1)-x(t2)∥,t,t1,t2∈R.For α=0 the spiral becomes a helix. The elegant proof by P.
Fuglede, Bent
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A New Method of Constructing Tooth Surface for Logarithmic Spiral Bevel Gear
, 2010 For a new type of bevel gear—logarithmic spiral bevel gear, establish its tooth direction curves and the mathematical model of tooth surface equation.
Hai Yan Hu +3 more
core +1 more source