Results 101 to 110 of about 1,012,550 (289)
Quasi-Exact Coulomb Dynamics of n Charges n-1 of Which Are Equal
Advances in Mathematical Physics, 2017 For n≥3 point charges n-1 of which are negative and equal quasi-exact periodic solutions of their Coulomb equation of motion are found. These solutions describe a motion of the negative charges around a coordinate axis in such a way that their ...
Wolodymyr Skrypnik
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Hyperbolic Regular Polygons with Notched Edges [PDF]
Discrete & Computational Geometry, 2005 The tiling problem is: Can one always decide in some algorithmic manner, when given an arbitrary collection of tiles (i.e., a protoset), whether or not the given protoset tessellates the plane? In the paper the tiling problem is solved when a tile \(T\) is hyperbolic or a Euclidean regular polygon whose edges are notched with matching bumps and nicks ...
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Advanced Science, EarlyView.Reconfigurable self‐contact variable stiffness metamaterials based on shape memory polymers enable programmable stiffness switching. Static arrays store and encrypt information with immunity to electromagnetic interference, while asymmetric stiffness converts symmetric vibration into directional matter transport.
Huadong Qin +7 more
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Journal of Applied MathematicsThis paper develops a shared gamma-formula framework for predicting and verifying the degenerate scales of regular and star polygonal domains in the two-dimensional Laplace boundary integral formulations. Starting from the known gamma-function expression
J. T. Chen +3 more
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A NEW, EFFECTIVE METHOD FOR COMPUTING THE INTERACTION POTENTIAL OF HARD CYCLIC MULTIMER SYSTEMS
TASK Quarterly, 2015 Studies of efficiency of several methods for calculating the interaction potential of a pair of two-dimensional hard cyclic multimers – molecules formed by hard disks (atoms) placed at the vertices of a regular polygon – are reported in this work.
MIKOŁAJ BILSKI
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Advanced Science, EarlyView.In this study, an efficient screening system is developed for plant metabolites to find a compound, 7‐epi‐10‐deacetyltaxol, inhibits tissue elongation. It suppresses plant growth through brassinosteroid and microtubule pathways. It is later applied to animal cells and human tumor organoids, resulting in similar cell division suppression. These findings
Yan‐Jie Zhang +20 more
wiley +1 more source
IEEE AccessThe current along a loop antenna is characterized by either a propagation constant ( $\alpha + j\beta $ ) or ( $\alpha - j\beta $ ). Understanding the impact of the propagation constant on the axial ratio is crucial for maintaining the performance of ...
Hisamatsu Nakano, Tomoki Abe
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Regular meshes from polygonal patterns
ACM Transactions on Graphics, 2017 We present a framework for designing shapes from diverse combinatorial patterns, where the vertex 1-rings and the faces are as rotationally symmetric as possible, and define such meshes as regular. Our algorithm computes the geometry that brings out the symmetries encoded in the combinatorics. We then allow designers and artists to envision and realize
Amir Vaxman +2 more
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Liquid‐Responsive Shape‐Memory Nanofiber‐Reinforced Scaffolds for Cartilage Repair
Advanced Science, EarlyView.A liquid‐responsive shape‐memory, nanofiber‐reinforced QCG scaffold combines conformal defect filling, an aligned architecture that is structurally permissive for endogenous cell infiltration, and sustained KGN release. This integrated design enhances BMSC viability, migratory activity, and chondrogenic differentiation and promotes hyaline cartilage ...
Jiyang Zeng +8 more
wiley +1 more source
Advanced Science, EarlyView.An engineered peptide self‐assembled nanofiber platform, designed to replicate STING–cGAMP binding motifs, facilitates pH‐responsive cytosolic delivery of cGAMP, enhances the endoplasmic reticulum with high efficiency, and robustly activates the STING pathway.
Yubin He +6 more
wiley +1 more source