Results 61 to 70 of about 19,232 (304)

Handing-over motion model based on analyses of hand motions and voice utterances of humans

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In this paper, we propose a hand-over motion model based on analyses of hand motions and voice utterances of humans. This model generates a motion in which a robot hands over an object to a human accompanied by a voice greeting.
Mitsuru JINDAI   +3 more
doaj   +1 more source

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

open access: yesAdvanced Materials, EarlyView.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz   +14 more
wiley   +1 more source

Research of the Transfer Method of Four-dimensional Coordinate to Three-dimensional Coordinate

open access: yesJixie chuandong, 2016
The coordinate measure machine(CMM) with rotary table is often use in the field of precision measurement.Because of the error evaluation requires that all measured point must be expressed in the same coordinate system,but the workpiece coordinate system ...
Ran Xiaoyan, Zhang Bai
doaj  

Quadrilateral folded plate structure elements of reduced Trefftz type

open access: yesComputer Assisted Methods in Engineering and Science, 2023
General strategy for developing finite elements of general geometric shape explained on quadrilateral folded plate structure element ensuring invariance properties is presented in this paper. The basic idea of this strategy consists in using the natural
Sulaiman Abo Diab
doaj  

FLIP: Transforming Consumer Projectors into Maskless Microscale Photopatterning Tools via Fresnel Lens Integration

open access: yesAdvanced Materials Technologies, EarlyView.
A low‐cost, maskless visible light photopatterning system has been developed by combining a consumer‐grade projector with a single Fresnel lens, generating the Fresnel Lens Integrated Projector (FLIP) system. FLIP enables flexible photopatterning of solid and gel films with features down to 30 µm and 135 µm, respectively.
Sridaran Rajagopal   +2 more
wiley   +1 more source

A New Coordinate System for Constructing Spherical Grid Systems

open access: yesApplied Sciences, 2020
In astronomy, physics, climate modeling, geoscience, planetary science, and many other disciplines, the mass of data often comes from spherical sampling.
Kin Lei, Dongxu Qi, Xiaolin Tian
doaj   +1 more source

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

open access: yesAdvanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias   +4 more
wiley   +1 more source

Bound States in the Continuum in Metasurface Absorbers: A Comparison with Metasurfaces

open access: yesAdvanced Photonics Research, EarlyView.
Bound states in the continuum (BICs) offer a powerful mechanism for enhancing light–matter interactions. This work systematically investigates the radiation characteristics of BICs under both transmission and reflection configurations using multipolar analysis.
Guizhen Xu   +3 more
wiley   +1 more source

阿基米德螺旋面异常数据的剔除方法

open access: yesJixie chuandong, 2010
A method of removing abnormal data is presented.It is used for lots of data on Archimedes surfaces measured by CMM.The data from cartesian-coordinate system is transformed into cylindrical coordinate system at first.Then the Archimedes surface is ...
邹红玲   +4 more
doaj  

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

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