Results 61 to 70 of about 966,408 (295)

Geometric constraint problems and solution instances [PDF]

open access: yes, 2010
Geometric constraint solving is a growing field devoted to solve geometric problems defined by relationships, called constraints, established between the geometric elements.
Joan Arinyo, Robert   +2 more
core  

用计算机几何技术求解平面机构动力学的方法

open access: yesJixie chuandong, 2010
Based on CAD the geometric constraint and dimension driving techniques,a dynamics analysis approach for planar mechanism is presented.By using the geometric-constraint,dimension-constraint,dimension equation-constraint,and dimension driving in CAD ...
张艳华, 杜秀菊, 陈立辉
doaj  

Hydrogel platforms for 3D cardiac tissue engineering and fibrotic disease modelling

open access: yesFEBS Open Bio, EarlyView.
Hydrogel‐based cardiac tissue models are advancing our understanding of heart health and disease. By incorporating electrical conductivity, aligned structures, and tunable mechanical properties, these platforms better replicate the complex environment of native heart tissue.
Harrison Porritt   +2 more
wiley   +1 more source

Rapid 3D reconstruction of constant-diameter straight pipelines via single-view perspective projection

open access: yesFrontiers in Physics
Regular inspections of pipelines are of great significance to ensure their long-term safe and stable operation, and the rapid 3D reconstruction of constant-diameter straight pipelines (CDSP) based on monocular images plays a crucial role in tasks such as
Jiasui Yao   +8 more
doaj   +1 more source

Temporal Interference Stimulation of Centromedian‐Parafascicular Complex in Disorders of Consciousness: A Pilot Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Treatment of disorders of consciousness (DoC) remains a major clinical challenge, and noninvasive, targeted modulation of deep brain structures has emerged as a promising therapeutic strategy. We aimed to evaluate the feasibility/safety and preliminary effects of thalamic temporal interference stimulation (TIS) targeting centromedian‐
Gengyao Hu   +7 more
wiley   +1 more source

A Multi-Objective Double Row Layout Problem Considering Safety Distances and Geometrical Constraints

open access: yesJurnal Optimasi Sistem Industri
This study addresses an enhanced version of the Double Row Layout Problem (DRLP) by incorporating two critical constraints: minimum safety distances between machines and geometric limitations on row lengths.
Achmad Pratama Rifai   +3 more
doaj   +1 more source

A Passive Tracking System Based on Geometric Constraints in Adaptive Wireless Sensor Networks

open access: yesSensors, 2018
Target tracking technologies in wireless sensor network (WSNs) environments fall into two categories: active and passive schemes. Unlike with the active positioning schemes, in which the targets are required to hold cooperative devices, the research on ...
Biao Zhou   +5 more
doaj   +1 more source

A Geometric Constraint Solver with Decomposable Constraint Set. [PDF]

open access: yes, 2001
In the paper, a new constructive approach to solving geometric constraints in 2D space is presented. The main step of the algorithm is pre-processing, which transforms both, geometric elements and geometric constraints, into simpler forms, and adds redundant constraints of distances and angles by solving triangles and determining sums and differences ...
Podgorelec, David, Žalik, Borut
openaire   +2 more sources

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

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