Results 71 to 80 of about 1,012,550 (289)
Advanced Science, EarlyView.An ultrasound‐activatable piezoelectric hydrogel reprograms chondrocyte mitochondrial epigenetics via the mTOR/GATD3A axis, clearing damaged mitochondria and alleviating osteoarthritis progression in both mouse models and human cartilage explants. ABSTRACT The avascular nature of cartilage hinders drug delivery for osteoarthritis (OA) therapy.
Hui Zheng +9 more
wiley +1 more source
Physics‐Informed Neural Network‐Enabled Forward Prediction and Inverse Design of Ring Origami
Advanced Science, EarlyView.This work presents a KRT‐PINN framework that integrates Kirchhoff rod theory with physics‐informed neural networks for the forward prediction and inverse design of ring origami consisting of closed‐loop rods. The framework predicts stable states of segmented rings with prescribed natural‐curvature profiles and determines the natural‐curvature profiles ...
Luyuan Ning +3 more
wiley +1 more source
Shape control of hyper-redundant modularized manipulator using variable structure regular polygon
, 2004 Hyper-redundant manipulator has more degrees of freedom than the least necessary to perform a given task, thus it has the features of overcoming conventional industrial robot's limitation such as improving its kinematics and dynamic performances ...
Liu JG(刘金国) +3 more
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Curves that allow the motion of a regular polygon [PDF]
This paper characterizes curves where a regular polygon of either a variable side length or a constant side length is allowed to rotate during k full revolutions while having its vertices on the curve during the motion.
Rochera Plata, David
core +1 more source
Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping
Advanced Science, EarlyView.This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron +4 more
wiley +1 more source
International Journal of Applied Earth Observations and GeoinformationThe cluster patterns of features in map space represent a comprehensive reflection of individual feature geometric attributes and their spatial adjacency relationships.
Pengcheng Liu, Ziqin Shao, Tianyuan Xiao
doaj +1 more source
Journal of High Energy Physics, 2020 We investigate the lattice ℂP N−1 sigma model on S s 1 $$ {S}_s^1 $$ (large) × S τ 1 $$ {S}_{\tau}^1 $$ (small) with the ℤ N symmetric twisted boundary condition, where a sufficiently large ratio of the circumferences (L s ≫ L τ ) is taken to approximate
Toshiaki Fujimori +4 more
doaj +1 more source
Dimple‐Encoded Reprogrammable Origami
Advanced Science, EarlyView.Local snap‐through of bistable dimples turns flat elastic sheets into reprogrammable origami structures. Interaction‐guided dimple arrays act as angle‐programmable hinge bands, enabling one sheet to morph into distinct polygonal and three‐dimensional configurations while retaining stable shapes for deployable and protective functions.
Qun Zhang +6 more
wiley +1 more source
Nauka ta progres transportu, 2010 In the article the technologies of transformation of a perfect polyhedron (tetrahedron) into semi-perfect one, starlike and imperfect polyhedrons by the methods of computer graphics are presented.
P. V. Bezditko +3 more
doaj
Efficient Regular Polygon Dissections
, 1998 We study the minimum number g(m, n) (respectively, p(m, n)) of pieces needed to dissect a regular m-gon into a regular n-gon of the same area using glass-cuts (respectively, polygonal cuts). First we study regular polygon-square dissections and show that
Jorge Urrutia +2 more
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