Results 101 to 110 of about 6,829 (292)

The Dirichlet problem successive upper relaxation numerical method convergence relaxation parameters influence investigations

Karpatsʹkì Matematičnì Publìkacìï, 2012
The relaxation parameters values to definite sequential upper relaxation block method convergence optimal velocity have been determined for the Dirichlet's problem in two-dimensional rectangle spatial region, the iteration procedure convergence and ...
Oliynyk A.P., Shtayer L.O.
doaj  

Tapping into Permutation Symmetry for Improved Detection of k-Symmetric Extensions. [PDF]

Entropy (Basel), 2023
Li Y, Zhang C, Hou SY, Wu Z, Zhu X, Zeng B.   +5 more
europepmc   +1 more source

Optimal Weight Allocation of Dynamic Distribution Networks and Positive Semi-definiteness of Signed Laplacians [PDF]

, 2018
Jieqiang Wei, Alexander Johansson, Henrik Sandberg, Karl Henrik Johansson, Jie Chen   +4 more
openalex   +1 more source

High‐Speed Flexible Schottky Diodes Based on Carbon Nanotubes

Advanced Electronic Materials, EarlyView.
We demonstrate a flexible Schottky diode based on carbon nanotube network thin film, and the devices are fabricated via a low‐temperature process on a PI substrate, which exhibits excellent radio‐frequency characteristics, with a high responsivity 6 A/W at zero bias, a high intrinsic cut‐off frequency reaching 153 GHz, and an extrinsic cut‐off ...
Yan Li, Haoyu Zhang, Xinyi Zheng, Weifeng Wu, Xiaowei He, Li Ding, Sheng Wang   +6 more
wiley   +1 more source

Eigenvalue Localization for Symmetric Positive Toeplitz Matrices

Axioms
Given a real symmetric matrix, several inclusion and exclusion intervals containing its eigenvalues can be given. In this paper, for symmetric positive Toeplitz matrices, we provide an inclusion interval and, under an additional hypothesis, we also give ...
Juan M. Peña
doaj   +1 more source

Comparison of different approaches of finding the positive definite\n metric in pseudo-Hermitian theories [PDF]

, 2013
Ananya Ghatak, Bhabani Prasad Mandal
openalex   +1 more source

Advancing Direct Alcohol Fuel Cells: Innovations in Composite‐Based Electrocatalysts and Polymer Support Materials for Enhanced Efficiency

Advanced Energy and Sustainability Research, EarlyView.
This graphical abstract emphasizes the working principle and the various essential factors of the direct methanol fuel cell (DMFCs). Additionally, various parameters, such as the nanoparticle's size and shape, the nature of the electrolyte, the type of support materials, and their fabrication process, also play essential roles in the functioning of the
Kirti Mishra, Samarjeet Singh Siwal, Phil Hart, Vijay Kumar Thakur   +3 more
wiley   +1 more source

A Proposal of Multigrid Methods for Hermitian Positive Definite Linear Systems enjoying an order relation [PDF]

, 2008
Stefano Serra‐Capizzano, Cristina Tablino–Possio   +1 more
openalex   +1 more source

Triboelectric Tactile Transducers for Neuromorphic Sensing and Synaptic Emulation: Materials, Architectures, and Interfaces

Advanced Energy and Sustainability Research, EarlyView.
Triboelectric nanogenerators are vital for sustainable energy in future technologies such as wearables, implants, AI, ML, sensors and medical systems. This review highlights improved TENG neuromorphic devices with higher energy output, better stability, reduced power demands, scalable designs and lower costs.
Ruthran Rameshkumar, Arunkumar Chandrasekhar, Poongundran Selvaprabhu   +2 more
wiley   +1 more source

Circularity, Sustainability, and the Quality of Coffee Sold via Vending Machines: What Do Italian Consumers Prefer?

Agribusiness, EarlyView.
ABSTRACT Vending is an important sector in the daily lives of many people, and coffee is the most frequently consumed product in the European market. Like many other sectors, vending is responding to the challenge of sustainable development by taking various actions, such as offering increasingly ecologically sound coffee while maintaining/improving ...
Alberto Bertossi, Stefania Troiano, Francesco Marangon   +2 more
wiley   +1 more source