Results 71 to 80 of about 2,070,998 (294)

Proportion and failure analysis of full-bridge sub-modules in a hybrid MMC

The Journal of Engineering, 2019
Isolating DC bipolar short-circuit fault is one of the difficulties faced by the flexible DC distribution system. This study aims to the hybrid modular multi-level converter (MMC).
Yonghui Song, Yongjie Luo, Xiaofu Xiong, Rui Lian   +3 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Electrical and thermal properties of insulating oil-based nanofluids: a comprehensive overview

IET Nanodielectrics, 2019
Nanofluids, formed by adding nanoscale particles to insulating oil, are stable and homogeneous suspensions that present advanced performance of electrical insulation and heat dissipation.
Zhengyong Huang, Jian Li, Wei Yao, Feipeng Wang, Fu Wan, Yaxiong Tan, Muhammad Ali Mehmood   +6 more
doaj   +1 more source

Assessment of power system security using Security Information Index

IET Generation, Transmission & Distribution, 2019
Power system security assessment is important for the analysis of a power system network. The security analysis is based on equality constraint of generation‐demand balance and inequality constraints of maximum voltage and current limits. The lack of a single measure to identify the state of the power system network limits the analysis of security and ...
Krishnan Manickavasagam, Belur Krishna Swathi Prasad, Hariharan Ramasangu   +2 more
openaire   +1 more source

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

One-Step Preparation of Durable Super-Hydrophobic MSR/SiO₂ Coatings by Suspension Air Spraying

Micromachines, 2018
In this study, we develop a facial one-step approach to prepare durable super-hydrophobic coatings on glass surfaces. The hydrophobic characteristics, corrosive liquid resistance, and mechanical durability of the super-hydrophobic surface are presented ...
Zhengyong Huang, Wenjie Xu, Yu Wang, Haohuan Wang, Ruiqi Zhang, Ximing Song, Jian Li   +6 more
doaj   +1 more source

Interference Analysis of Metal Conductors for Target-Resonance-Based Detection Method

Complexity, 2020
Frequency bifurcation phenomenon is an important input characteristic of the magnetically coupled resonant wireless power transfer (MCR-WPT) system in overcoupling situation.
Lin Chen, Huaiqing Zhang, Yinchun A, Wei Song   +3 more
doaj   +1 more source

Human Security: Does Normative Europe Need a New Strategic Narrative? [PDF]

, 2007
Alongside a sustained debate about the role of the EU in the international system and the nature of its power as an external actor, foreign and security policy making continues to reflect an awkward mixture of civilian, military and normative instruments,
Martin, Mary.
core  

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

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