Results 51 to 60 of about 559,003 (281)
Advanced Engineering Materials, EarlyView.A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya +3 more
wiley +1 more source
3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response
Advanced Engineering Materials, EarlyView.A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley +1 more source
Bi-Hierarchical Cooperative Coevolution for Large Scale Global Optimization
IEEE Access, 2020 Taking “divide-and-conquer” as a basic idea, cooperative coevolution (CC) has shown a promising prospect in large scale global optimization.
Zhigang Ren +5 more
doaj +1 more source
Research on shape identification of vacuum leakage hole based on improved VMD
AIP Advances, 2023 With the increasing number of space debris and extreme working environment, the space station faces the risk of cabin damage. Once the leakage occurs, it must be repaired in time.
Lei Qi +7 more
doaj +1 more source
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 +9 more
wiley +1 more source
Entropy, 2019 Aimed at distinguishing different fault categories of severity of rolling bearings, a novel method based on feature space reconstruction and multiscale permutation entropy is proposed in the study.
Weibo Zhang, Jianzhong Zhou
doaj +1 more source
Decomposition properties of John domains in normed vector spaces
Journal of Mathematical Analysis and Applications, 2012 Let \(E\) be a real normed vector space with \(\dim E\geq 2\). A domain \(D\) in \(E\) is said to be a \(c\)-John domain if each pair of points \(z_1,z_2 \in D\) can be joined by a rectifiable arc \(\alpha\) in \(D\) such that \[ \displaystyle \min_{j = 1,2} j(\alpha [ z_j, z]) \leq c \cdot d (z, \partial D) \] for all \(z \in \alpha\), where \(\alpha [
Huang, M., Li, Yaxiang
openaire +2 more sources
Advanced Functional Materials, EarlyView.Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp +7 more
wiley +1 more source
Journal of Mathematical and Fundamental Sciences, 2019 Sari. Dibuktikan teorema mengenai dekomposisi pada ruang vector yang diakibatkan oleh suatu pementaan nilpotent. Dekomposisi ini, disamping ditentukan oleh indeks nilpoten, juga ditentukan oleh nolitas pemetaan. Abstract.
Achmad Arifin
doaj
IGBT Temperature Field Monitoring Based on Reduced-order Model
CES Transactions on Electrical Machines and Systems, 2023 With the rapid development of the world economy, IGBT has been widely used in motor drive and electric energy conversion. In order to timely detect the fatigue damage of IGBT, it is necessary to monitor the junction temperature of IGBT.
Ziyu Zhou +5 more
doaj +1 more source