Results 51 to 60 of about 334,043 (330)

Numerical and Experimental Study of High‐Speed Laser Cutting of Copper Current Collectors: Process Optimization for Quality Assessment

Advanced Materials Technologies, EarlyView.
This study employs a CFD model to simulate laser cutting of copper current collectors used for Li‐Ion battery production. This model predicts cut edge quality by assessing the influence of power, scanner speed, and foil thickness. Defects are classified and an optimal working area is found.
Caterina Angeloni, Samuele Piandoro, Erica Liverani, Alessandro Fortunato   +3 more
wiley   +1 more source

Optical Self‐Tuning of Ferroelectric Metasurfaces Infiltrated with Nematic Liquid Crystals via Photovoltaic Effect

Advanced Optical Materials, EarlyView.
A novel scheme is introduced to achieve optical self‐tuning in ferroelectric lithium niobate (LN) metasurfaces equipped with a thin film of liquid crystals (LCs). The resonant optical field distributions inside the meta‐atoms can induce a photovoltaic (PV) field, which reorients the surrounding LCs.
Atefeh Habibpourmoghadam, Boris N. Chichkov, Antonio Calà Lesina   +2 more
wiley   +1 more source

A NOVEL CONCEPT OF THE THEORY OF DYNAMICS OF NUMBERS AND ITS APPLICATION IN THE QUADRATIC EQUATION [PDF]

Journal of Mechanics of Continua and Mathematical Sciences
Considering the basic role of numbers in Mathematics, Science, and Technology the author developed a new structure of numbers named as ‘Theory of Dynamics of Numbers.’ According to the Theory of Dynamics of Numbers, the author defined 0 (zero) is the ...
Prabir Chandra Bhattacharyya
doaj   +1 more source

3D inversion of full gravity gradient tensor data in spherical coordinate system using local north-oriented frame

Earth, Planets and Space, 2017
In this paper, we propose an inverse method for full gravity gradient tensor data in the spherical coordinate system. As opposed to the traditional gravity inversion in the Cartesian coordinate system, our proposed method takes the curvature of the Earth,
Yi Zhang, Yunlong Wu, Hui Li, Xinlin Zhang, Guiju Wu, Jiapei Wang, Jianguo Yan   +6 more
semanticscholar   +1 more source

Spin‐Orbit Photonics with Potato Starch Lenses

Advanced Optical Materials, EarlyView.
Native potato starch spherulites are introduced as volumetric optical elements that modulate both dynamic and geometric phases of light. These spherulites focus light and generate optical vortices via spin‐orbit interaction, functioning as polarization‐sensitive microlenses. Their unique radial anisotropy enables applications in vortex beam generation,
Petr Bouchal, Petr Viewegh, Petr Liška, Radim Chmelík, Zdeněk Bouchal   +4 more
wiley   +1 more source

Influence of Secondary Currents on Solute Dispersion in Curved Open Channels

Journal of Applied Mathematics, 2012
The dispersion coefficient tensor including off-diagonal components was introduced in the flow with secondary currents, which is called skewed shear flow dispersion (SSFD) coefficient tensor, in this paper.
Myung Eun Lee, Gunwoo Kim
doaj   +1 more source

Pembelajaran Elektromagnetika Terapan Berbasis Augmented Reality: Kasus Sistem Koordinat

Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2017
This paper aims to develop interactive media in the form of application of Applied Electromagnetics learning, based on Augmented Reality (AR) technology. This application is developed to visualize a point and vector in 3 dimensional coordinate system (3D)
Rosyid Budiawan, Tri Nopiani Damayanti, Dwi Andi Nurmantris   +2 more
doaj   +1 more source

Nonlinear Time-Varying Turbulence Signal Processing and Simulation Under Curvilinear Coordinate System

, 2016
In order to analyse the nature of the turbulence, the curvilinear coordinate system is established according to the relations of cartesian coordinate system.
Xiaoyang Liu, Wanping Liu, Chao Liu, Xiaoping Zeng   +3 more
semanticscholar   +1 more source

Design Method of Time‐Multiplexed Ultrashort Throw Ratio Projection System with Low Distortion and Uniform Resolution

Advanced Photonics Research, EarlyView.
This work develops an ultrashort throw ratio (UTR) laser projection system using time‐multiplexed micro electro mechanical systems scanning. Trapezoidal distortion via vertical laser incidence control is eliminated and a systematic design method integrating a miniaturized catadioptric objective that maintains uniform optical étendue is proposed.
Yuefan Shan, Jiaping Sun, Xilong Dai, Da Wang, Yongqi Liu, Dewen Cheng   +5 more
wiley   +1 more source

Gyroscopically Stabilized Robot: Balance and Tracking

International Journal of Advanced Robotic Systems, 2008
The single wheel, gyroscopically stabilized robot - Gyrover, is a dynamically stable but statically unstable, underactuated system. In this paper, based on the dynamic model of the robot, we investigate two classes of nonholonomic constraints associated ...
Yongsheng Ou, Yangsheng Xu
doaj