Results 151 to 160 of about 26,766 (270)

Nonlocal-Interaction Vortices

SIAM Journal on Mathematical Analysis
We consider sequences of quadratic non-local functionals, depending on a small parameter $\e$, that approximate the Dirichlet integral by a well-known result by Bourgain, Brezis and Mironescu. Similarly to what is done for hard-core approximations to vortex energies in the case of the Dirichlet integral, we further scale such energies by $|\log\e|^{-1}$
openaire   +3 more sources

Nonlocal Electrical Detection of Spin‐Polarized Surface Currents in the 3D Topological Insulator BiSbTeSe2

physica status solidi (b), EarlyView.
Nonlocal (NL) electrical measurements in the topological insulator BiSbTeSe2 reveal spin‐polarized surface currents, which vanish around 20 K due to increased interactions between bulk and surface states. An enhanced spin‐to‐background ratio in the NL geometry compared to the local geometry provides new insights into spin transport and current pathways
Shaham Jafarpisheh, Frank Volmer, Zhiwei Wang, Bárbara Canto, Yoichi Ando, Christoph Stampfer, Bernd Beschoten   +6 more
wiley   +1 more source

Effects of Isothermal Treatment on AgZIF‐62: Implications on Porosity, Separations, and Grain Boundary Defect Removal

Small Science, EarlyView.
This study determines the effects of melt conditions and time on agZIF‐62's pore volume, accessible porosity, morphology, and coalescence for controlled production of ZIF‐62 glasses. Glasses derived from metal‐organic frameworks (MOFs) combine the processing benefits of glassy materials with the accessible and selective porosity of MOFs, with potential
Dana M. Stone, Cara M. Doherty, Durga P. Acharya, Sarah E. Morgan, Mai O. Abdelmigeed, Jimmy Nguyen, Nathan C. Harvey‐Reid, Elnaz Jangodaz, Shane G. Telfer, Gregory N. Parsons, Matthew G. Cowan   +10 more
wiley   +1 more source

Counterfactual restrictions and Bell’s theorem

Journal of Physics Communications
We show that the ability to consider counterfactual situations is a necessary assumption of Bell’s theorem, and that, to allow Bell inequality violations while maintaining all other assumptions, we just require certain measurement choices be ...
Jonte R Hance
doaj   +1 more source

A Bridge Transformer Network With Deep Graph Convolution for Hyperspectral Image Classification

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Transformers have been widely applied to hyperspectral image classification, leveraging their self‐attention mechanism for powerful global modelling. However, two key challenges remain as follows: excessive memory and computational costs from calculating correlations between all tokens (especially as image size or spectral bands increase) and ...
Yuquan Gan, Siyu Wu, Chang Su, Nan Xiang, Zhijie Xu, Yushan Pan   +5 more
wiley   +1 more source

Investigating Spatial‐Temporal Optical Emission Spectroscopy of Unstable Positive Leaders in Long Sparks Under Atmospheric Pressure

High Voltage, EarlyView.
ABSTRACT This study explores exciting state species and reaction pathways in positive leaders to better understand the breakdown mechanisms of long air gap discharges and natural lightning. Emission spectra from an unstable positive leader in a 1 m rod‐plate air gap under switching impulse voltages were observed, spanning 300–800 nm.
Hengxin He, Yubin Huang, Wanxia Zhang, Chang Liu, Xiuyuan Yao, Yu Ying, Weijiang Chen   +6 more
wiley   +1 more source

YOLO‐GDCNN: Real‐Time Operating Point Detection for Live Working Robots in the Power Industry

High Voltage, EarlyView.
ABSTRACT In the power industry maintenance, the capability of live working robots to detect and operate with power components in real time is paramount. This paper proposes a cascaded detection framework for real‐time detection of live working operation points, named YOLO‐GDCNN. The framework consists of two parts.
Haoning Zhao, Jiamin Guo, Erbao Dong, Rui Guo, Linkun Zhao, Chaoqun Wang, Xuewen Rong, Yibin Li   +7 more
wiley   +1 more source

Lawyer CEOs and Strategic Disclosure of Litigation Loss Contingencies

Abacus, EarlyView.
Using hand‐collected data, we find that lawyer CEOs, defined as CEOs with a legal education background, tend to make first disclosures about pending litigation cases on a timelier basis for litigation cases that end up with material losses than do non‐lawyer CEOs.
Feng Chen, Yu Hou, Gordon Richardson, Barbara Su   +3 more
wiley   +1 more source

Rural land rental markets in developing countries: Can survey design innovations improve land market participation statistics?

American Journal of Agricultural Economics, EarlyView.
Abstract A longstanding puzzle in the African land rental market literature is the often‐observed discrepancy between the number of tenants (renters‐in) and the much smaller number of landlords (renters‐out) in survey data. If this discrepancy derives from systematic biases in survey data responses on rental market participation, then the existing body
Gashaw T. Abate, Kibrom A. Abay, Jordan Chamberlin, Samuel Sebsibie   +3 more
wiley   +1 more source

Assessing Mobility Among Inferred Elites Interred in Crypts 1–3 on Kom H at Tungul (Old Dongola), Sudan

Archaeometry, EarlyView.
ABSTRACT As the capital of Makuria, Tungul was a major sociopolitical center within medieval Nubia, being the seat of a bishopric and a monastic community. During the excavation of the Kom H monastery, three burial crypts (Crypts 1–3) were uncovered.
Robert J. Stark, Artur Obłuski, Robert Mahler   +2 more
wiley   +1 more source