Results 101 to 110 of about 5,412 (286)
Spiral galaxies rotation curves with a logarithmic corrected newtonian gravitational potential
, 2009 International audienceWe analyze the rotation curves of 10 spiral galaxies with a newtonian potential corrected with an extra logarithmic term. The logarithmic correction can have its origin from fundamental frameworks, like string theories or effective ...
Campos, J. Pereira, Fabris, J. C.
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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
MATHEMATICAL CHARACTERIZATION OF THE NATURAL SPIRAL OF BEAUTY, HARMONY AND BALANCE
Journal of Industrial Design and Engineering Graphics, 2014 This paper aims to reveal one aspect of the natural implications of mathematics. Specifically, based on the logarithmic spiral and natural logarithm, based on the number e, extending the idea of the natural spiral.
STANCIU Virgil, PAVEL Cristina
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Bio-inspired programmable metamaterials with logarithmic spiral hierarchy for energy absorption
Materials & DesignTo enable programmable energy-absorbing buffers, a rotation-driven recursive generation rule is introduced into a conventional hexagonal honeycomb to create a self-similar chiral hierarchical honeycomb (SCHH) with multilevel nesting. Closed-form geometry
Zhen Cui +3 more
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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
Disintegration process in disc crushers
Research in Agricultural Engineering, 2013 Grinding or crushing hard raw materials is usually a primary operation which precedes the follow-up technological processes in a number of industrial sectors.
P. Vaculík +3 more
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Explanation of software entropy by golden ratio and logarithmic spiral
, 2007 Explanation of software entropy by golden ratio and logarithmic spiral is presented in this paper. Basic entropy definitions and understanding entropy in context of software system is given in the beginning of this paper.
Vlajić, Siniša
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Dynamic Contact Emulate Analysis of Logarithmic Spiral Bevel Gear with ANSYS/LS-DYNA
, 2011 For a new type of bevel gear-logarithmic spiral bevel gear, which stress mechanical properties are studied during the meshing process. Three-dimensional meshing models of logarithmic spiral bevel gear are established by Pro/ E. Because its tooth trace is
Shu Qin Wu, Qiang Li, Hong Bo Yan
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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
Curves in Archeology: Computing the Volume of a Greek Vase
MetrologyThe concept of dynamic symmetry in art and extensive measurements on Greek vases suggest that a vase and its parts can be inscribed into similar rectangles, with all rectangles having the same ratio of lengths of their side.
Siddhant Shah +2 more
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