Results 91 to 100 of about 1,286,456 (286)

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Improvements on the virtual obstacle method

International Journal of Advanced Robotic Systems, 2020
While the artificial potential field has been widely employed to design path planning algorithms, it is well-known that artificial potential field-based algorithms suffer a severe problem that a robot may sink into a local minimum point.
Yuan Zheng, Xueming Shao, Zheng Chen, Jing Zhang   +3 more
doaj   +1 more source

Wall following to escape local minima for swarms of agents using internal states and emergent behaviour [PDF]

, 2008
Natural examples of emergent behaviour, in groups due to interactions among the group's individuals, are numerous. Our aim, in this paper, is to use complex emergent behaviour among agents that interact via pair-wise attractive and repulsive potentials ...
Mabrouk, M. H., McInnes, C. R.
core   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

Advanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li, Rong Zhao, Qian Zhang, Haojie Wang, Yujing Liu, Lai‐Chang Zhang   +5 more
wiley   +1 more source

Path planning of mobile robot by mixing experience with modified artificial potential field method

Advances in Mechanical Engineering, 2015
In this article, a new method is proposed to help the mobile robot to avoid many kinds of collisions effectively, which combined past experience with modified artificial potential field method.
Huasong Min, Yunhan Lin, Sijing Wang, Fan Wu, Xia Shen   +4 more
doaj   +1 more source

MAGMA: a 3D, Lagrangian magnetohydrodynamics code for merger applications

, 2007
We present a new, completely Lagrangian magnetohydrodynamics code that is based on the SPH method. The equations of self-gravitating hydrodynamics are derived self-consistently from a Lagrangian and account for variable smoothing length (``grad-h ...
Balbus, D. Price, Duez, Monaghan, S. Rosswog, Shibata   +5 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Improved Artificial Potential Field Method Fused with Fuzzy Logic Algorithm

Journal of Computer Technology and Electronic Research
The APF (artificial potential field, APF) has been applied to the path planner of mobile robots by many technology developers and engineers because of its simple structure, small amount of calculation, good obstacle avoidance effect. However, in complex environments, the robot using this algorithm will have target inaccessibility and local minimum.
Ligong Ma, Yiwen Wu, Zhaoxun Chen
openaire   +1 more source

Two electrons in a strongly coupled double quantum dot: from an artificial helium atom to a hydrogen molecule

, 2005
We study the formation of molecular states in a two-electron quantum dot as a function of the barrier potential dividing the dot. The increasing barrier potential drives the two electron system from an artificial helium atom to an artificial hydrogen ...
C. G. Darwin, C. Yannouleas, H. A. Bethe, J. M. Elzerman, L. Jacak, M. Read, M. Taut, M. Wagner, P. Hawrylak, W. Dybalski, W. G. van der Wiel   +10 more
core   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source