Results 81 to 90 of about 574,424 (277)

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Spectral and integral methods of determining parameters in selected electric arc models with a forced sinusoid current circuit

Archives of Electrical Engineering, 2016
The paper discusses problems arising in attempts to accurately represent dynamic processes of an electric arc by means of simple mathematical models.
Sawicki Antoni, Haltof Maciej
doaj   +1 more source

Mathematical modelling: From school to university

Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie, 2009
The outcomes based education (OBE) system is characterised by controversy and the 2008 matric results that rendered admission to an unusually large number of students did nothing to silence critics. The first students who completed their full cycle of school education in the OBE system entered universities in 2009 and their preparedness for university ...
openaire   +2 more sources

In Situ Copper Electroplating Turns Material Extrusion 3D Printers Into Metal–Polymer Hybrid Fabricators

Advanced Materials Technologies, EarlyView.
An in situ electroplating approach for MEX 3D printing is proposed, enabling copper deposition during the fabrication of conductive polymers. The method combines a printer‐integrated plating head, ML‐based g‐code control, and stop‐and‐go printing, achieving near‐bulk copper conductivity and enabling fully embedded, assembly‐free electronic components ...
Gianluca Percoco, Nicola Larovere, Antonio Zagaria, Antonio Pavone, Rosanna Rifino, Gianni Stano   +5 more
wiley   +1 more source

A Pressure Microsensor Made of Parylene‐C for Use as Medical Implant

Advanced Materials Technologies, EarlyView.
A monolithic parylene‐C pressure sensor with gold strain gauges provides 6.2 μV$\mu{\rm V}$·mmHg$\cdot{\rm mmHg}$−1$^{-1}$ sensitivity. The morphology of a sputtered thin film strain sensor is granular/columnar, which results in a high gauge factor of 7.5. Thermal bonding and parylene‐C coating create a hermetic cavity.
Ann‐Kathrin Klein, Victor Krajka, Andreas Dietzel   +2 more
wiley   +1 more source

Mathematics of Gravitational Lensing: Multiple Imaging and Magnification

, 2009
The mathematical theory of gravitational lensing has revealed many generic and global properties. Beginning with multiple imaging, we review Morse-theoretic image counting formulas and lower bound results, and complex-algebraic upper bounds in the case ...
A. Majthay, A. O. Petters, A. Zakharov, A.B. Aazami, A.B. Aazami, A.O. Petters, A.O. Petters, A.O. Petters, A.O. Petters, A.O. Petters, A.O. Petters, A.O. Petters, C. Hunter, C. Keeton, C. Keeton, D. Castrigiano, D. Khavinson, D. Narasimha, D.H. Gottlieb, E.M. Shin, F. Giannoni, F. Giannoni, G.W. Gibbons, G.W. Gibbons, G.W. Gibbons, G.W. Gibbons, H. Friedrich, H. Witt, H.J. Witt, H.J. Witt, I. Kovner, J. Bayer, J. Ehlers, J. Granot, J. Milnor, J. Renn, J. Wambsganss, J.M. Azais, K. Subramanian, M. C. Werner, M. Chiba, M. Golubitsky, M. Shub, M. Sodin, M. Sodin, M. Sodin, M.A. Abramowicz, M.C. Werner, M.C. Werner, M.F. Atiyah, M.F. Atiyah, N. Dalal, N. Dalal, N. Katz, N.W. Evans, N.W. Evans, P. Griffiths, P. Schneider, P. Schneider, P. Schneider, P.J. Forrester, P.L. Schechter, R. Adler, R. Blandford, R. Gilmore, R. Low, R. Nityananda, R.B. Metcalf, R.D. Blandford, R.H. McKenzie, S. Mao, S. Mao, S.H. Rhie, T. Frankel, T. Padmanabhan, T. Poston, V. Perlick, V. Perlick, V. Perlick, V. Perlick, V. Perlick, V. Perlick, V.I. Arnold, V.I. Arnold, V.I. Arnold, V.I. Arnold, W. Burke, W.V. Li   +87 more
core   +1 more source

Galinstan Liquid Metal/Polyurethane Composite as a Multifunctional Stretchable Electrode and Piezoresistive Strain Sensor With Minimal Drift

Advanced Materials Technologies, EarlyView.
Liquid metal additives are processed in elastomer host resulting in highly conductive and stretchable composites. The material functions as a piezoresistive sensor with minimal drift, low stiffness, and enhanced operating range. The film can replace wires to charge a mobile phone at ∼350% strain and monitors bodily motion in real‐time via a portable ...
Patryk Wojciak, Neeraj Kumar, Toby Hallam, Shayan Seyedin   +3 more
wiley   +1 more source

Stress‐Normalized Sensitivity as a Comparative Benchmark for Intrinsically Piezoresistive Nanocomposite Materials in Wearable Electronics

Advanced Materials Technologies, EarlyView.
A stress‐normalised sensitivity metric (S = G/Y) is introduced as a materials‐level benchmark for intrinsically piezoresistive nanocomposites. By decoupling electromechanical response (G) from stiffness (Y), the framework enables direct comparison across diverse systems and clarifies design trade‐offs for wearable sensors.
Conor S. Boland
wiley   +1 more source

Optimal Control Problem and Its Solution in Class of Feasible Control Functions by Advanced Model of Control Object

Mathematics
This paper is devoted to the solution of the optimal control problem. The obtained control should be optimal in terms of quality criteria and, at the same time, feasible when implemented in the control object.
Askhat Diveev, Elena Sofronova
doaj   +1 more source

Mathematical Overview of Hypersphere World-Universe Model

Journal of High Energy Physics, Gravitation and Cosmology, 2017
The Hypersphere World-Universe Model (WUM) provides a mathematical framework that allows calculating the primary cosmological parameters of the World which are in good agreement with the most recent measurements and observations. WUM explains the experimental data accumulated in the field of Cosmology and Astroparticle Physics over the last decades ...
openaire   +2 more sources