Results 91 to 100 of about 1,362,476 (292)

Reliability Analysis of Fatigue Failure of Cast Components for Wind Turbines

Energies, 2015
Fatigue failure is one of the main failure modes for wind turbine drivetrain components made of cast iron. The wind turbine drivetrain consists of a variety of heavily loaded components, like the main shaft, the main bearings, the gearbox and the ...
Hesam Mirzaei Rafsanjani, John Dalsgaard Sørensen   +1 more
doaj   +1 more source

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

Advanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng, Xinxin Wang, Ruochao Zhao, Zhendong Li, Kai Liu, Ke Yuan, Jia An, Xinwei Li, Chee Kai Chua, Zhonggang Wang   +9 more
wiley   +1 more source

Diffusion Signed LMS Algorithms and Their Performance Analyses for Cyclostationary White Gaussian Inputs

IEEE Access, 2017
As one of the signed variants of the diffusion least mean square (DLMS) algorithm over networks, the diffusion sign error algorithm has been presented in previous reference. In this paper, we propose two novel signed variants of the DLMS algorithm, i.e.,
Wenyuan Wang, Haiquan Zhao
doaj   +1 more source

An extension of Heston's SV model to Stochastic Interest Rates

, 2018
In 'A Closed-Form Solution for Options with Stochastic Volatility with Applications to Bond and Currency Options', Heston proposes a Stochastic Volatility (SV) model with constant interest rate and derives a semi-explicit valuation formula.
de Frutos, Javier, Gaton, Victor
core  

Hybrid deterministic stochastic systems with microscopic look-ahead dynamics [PDF]

, 2010
We study the impact of stochastic mechanisms on a coupled hybrid system consisting of a general advection-diffusion-reaction partial differential equation and a spatially distributed stochastic lattice noise model.
Katsoulakis, M. A., Majda, A. J., Sopasakis, A.   +2 more
core  

An Analytical Study of Coupled Two-State Stochastic Resonators

, 1998
The two-state model of stochastic resonance is extended to a chain of coupled two-state elements governed by the dynamics of Glauber's stochastic Ising model.
A. Bulsara, A. Bulsara, A. Bulsara, A. D. Hibbs, A. D. Hibbs, A. Neiman, A. Neiman, B. McNamara, C. Nicolis, F. Marchesoni, F. Moss, J. E. Levin, J. J. Brey, J. J. Collins, J. J. Collins, J. J. Collins, J. K. Douglas, J. Lindner, J. Lindner, K. Wiesenfeld, L. B. Kiss, L. Gammaitoni, L. Schimansky-Geier, Lutz Schimansky-Geier, M. E. Inchiosa, M. E. Inchiosa, M. Morillo, P. Cordo, P. Hänggi, P. Jung, P. Jung, R. Benzi, R. J. Glauber, R. Rouse, S. M. Besrukov, Udo Siewert, Z. Néda   +36 more
core   +1 more source

A Smart Magnetically Actuated Flip‐Disc Programmable Metasurface with Ultralow Power Consumption for Real‐Time Channel Control

Advanced Functional Materials, EarlyView.
The study proposes a 1‐bit programmable metasurface based on flip‐disc display, named flip‐disc metasurface (FD‐MTS). This new design enables ultralow energy consumption while maintaining coding patterns. It also exhibits high scalability and multifunctional flexibility.
Jiang Han Bao, Che Liu, Jia Cheng Li, Zhen Hao Fu, Yi Su Huang, Si Qi Huang, Lei Zhang, Jian Wei You, Tie Jun Cui   +8 more
wiley   +1 more source

A New Angle-Calibration Method for Precise Ultra-Short Baseline Underwater Positioning

Remote Sensing
Ultra-short baseline (USBL) underwater positioning systems are widely used in marine scientific research and ocean engineering. Angle misalignment is a main error that reduces the accuracy of USBL underwater positioning.
Zhen Sun, Zhenjie Wang, Zhixi Nie, Chun Jia, Rui Shan   +4 more
doaj   +1 more source

The Impact of Systemic Risk on the Diversification Benefits of a Risk Portfolio

Risks, 2014
Risk diversification is the basis of insurance and investment. It is thus crucial to study the effects that could limit it. One of them is the existence of systemic risk that affects all of the policies at the same time. We introduce here a probabilistic
Marc Busse, Michel Dacorogna, Marie Kratz   +2 more
doaj   +1 more source

Laser‐Based Sculpturing of Embedded Ultrathin Metal‐Oxide Nanopores for Enhanced Biomolecular Sensing

Advanced Functional Materials, EarlyView.
Controlled laser‐drilling of embedded HfO2 membranes creates three layer nanopores with Gaussian‐shaped cavities sculptured in the supporting layers. These embedded solid‐state nanopores slow DNA translocation by 12‐fold compared to SiNx pores, enabling high‐resolution, label‐free detection of short DNAs, RNAs, and proteins.
Jostine Joby, Yulia Marom, Guocong Lin, Aleksandra Baron‐Wiechec, Amit Meller   +4 more
wiley   +1 more source