Results 131 to 140 of about 36,624 (293)
Models of students’ conceptions about the tangent line
, 2008 The results presented in this paper are a part of a doctoral study nearing completion which focuses on students’ conceptions about tangent lines. The study explores the ways in which students who have studied tangents in school in different contexts ...
Biza, Irene
core
Symmetry properties of average densities and tangent measure distributions of measures on the line [PDF]
, 1995 Answering a question by Bedford and Fisher we show that for every Radon measure on the line with positive and finite lower and upper densities the one-sided average densities always agree with one half of the circular average densities at almost every ...
Mörters, Peter
core
Thin‐Film Transistor Based Active Taxel for Multimode Tactile Perception and Fused Processing
Advanced Science, EarlyView.Skin serves as the largest‐area organ for human and embodied intelligent robots, providing tactile interaction. An active multimode fused (AMF) artificial skin is developed using standard TFT processes, featuring 2T‐1C taxels with optical and electrostatic capacitive receptors for cross‐modal sensing.
Sihao Wu +13 more
wiley +1 more source
Counting isotropic tangent lines of hypersurfaces
Differential Geometry and its Applications, 2016 Consider the standard symplectic $(\RR^{2n}, ω_0)$, a point $p\in\RR^{2n}$ and an immersed closed orientable hypersurface $Σ\subset\RR^{2n}\minus\{p\}$, all in general position. We study the following passage/tangency question: how many lines in $\RR^{2n}$ pass through $p$ and tangent to $Σ$ parallel to the 1-dimensional characteristic distribution ...
openaire +2 more sources
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
Causal‐Guided Ultra‐Long‐Term Time Series Forecasting Via Anticipated Covariates
Advanced Science, EarlyView.Often treated as unknown, information from the future remains underutilized.We demonstrate that in a coupled dynamical system, providing the future state of the effect enables accurate forecasting of the cause for a long timesteps. A time series forecasting paradigm that introduces anticipated covariates to represent such known future states is ...
Jintong Zhao +4 more
wiley +1 more source
Advanced Science, EarlyView.The incorporation of oxygen vacancies (OVs) presents a viable strategy for fine‐tuning the photocatalytic prowess of BiOCl. A reliable hydrogen annealing reduction technique is employed to precisely design OVs, thereby optimizing the light absorption capacity, as well as the efficiency of carrier migration and separation in BiOCl.
Shuaihao Ma +11 more
wiley +1 more source
Research on bearing roller modification curve design based on multi-arc fitting
Jixie chuandongObjectiveTo satisfy the design requirements for the crowned profile of cylindrical roller bearings, a design method based on multi-circular-arc fitting of the ideal logarithmic curve was proposed.MethodsFirstly, taking the minimum sum of squared ...
Zhang Siying, Xu Mingxian
doaj
, 2011 Knowledge about Plane Geometry and CurvesThe area of the circle determined by the tangent line to the two internal circles equals the area of the arbelos (the upper half of the light green area)Componente Curricular::Ensino Médio ...
Kabai, Sándor
core
Elements for a Genetic Decomposition of the tangent line concept [PDF]
, 2016 El objetivo de esta investigación es caracterizar la construcción del significado del concepto de recta tangente en estudiantes de Bachillerato (16-17 años).
Boigues Planes, Francisco José +4 more
core