Results 51 to 60 of about 4,164 (236)
Ultrafast oscillations in the human brain and their functional significance
Epilepsia, EarlyView.Abstract Objective The upper frequency limit of human brain activity remains unknown. Using ultrahigh sampling rate (≥20 kHz) intracranial microelectroencephalography, this study aimed to systematically explore and quantitatively characterize brain field oscillations beyond the established high‐frequency oscillation range (>2 kHz), and to determine ...
Milan Brázdil +13 more
wiley +1 more source
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT We present a hybrid interpretable Physics‐Informed Neural Network Long‐Short Term Memory (Hybrid PINN LSTM) framework for predicting the seismic response of rocking blocks. Existing analytical models rely on uncertain idealizations, while purely data‐driven and machine‐learning approaches lack physical consistency and interpretability.
Shirley Shen +1 more
wiley +1 more source
When a Week Is Not A Week: How Temporal Boundaries Shift Regulatory Focus and Consumer Preference
Psychology &Marketing, EarlyView.ABSTRACT Does consumer perception of a sales event change if it falls across a calendar boundary (e.g., next month) versus within the current month, holding objective time constant? We investigate this question in the context of Cyber Monday, the global shopping event occurring the Monday after the U.S. Thanksgiving holiday.
David DeFranza, Promothesh Chatterjee
wiley +1 more source
On the Chatter of Lathe Tool, : 1st Report. On the Cause of Chatter
Journal of the Society of Mechanical Engineers, 1936 筆者は数年前削り抵抗力並に刄先の振動を正確に測定する方法を考案し、旋盤バイトのびびりに就て実驗を行つたが、その當時は被削材の振動を測定することが出耒なかつたゝめ充分な結果を得ることが出耒なかつた。今度回轉してゐる被削材の撓振動を削り抵抗力と同時に慣性の影響なく正確に測定する方法を考察し、旋盤主軸の撓に起因するびびりに就て実驗を行ひ、びびりは削り抵抗力の変化の週期が旋盤一部の自己振動の週期と一致して共鳴を起し、被削材及び刄先の振幅が著しく増大するものであることを実驗的に明かにした。
openaire +3 more sources
Oikos, EarlyView.Landscape features can shape the occurrence and strength of predator–prey interactions by influencing predation risk and prey distribution. In the High Arctic, some bird species select nesting sites with physical features that impede access for their main terrestrial predator, the Arctic fox.
Marylou Beaudoin +6 more
wiley +1 more source
Adaptive Sliding‐Mode Control of a Perturbed Diffusion Process With Pointwise In‐Domain Actuation
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT A sliding mode–based adaptive control law is proposed for a class of diffusion processes featuring a spatially‐varying uncertain diffusivity and equipped with several point‐wise actuators located at the two boundaries of the spatial domain as well as in its interior.
Paul Mayr +3 more
wiley +1 more source
Effect of Cross Transfer Function on Chatter Stability in Plunge Cutting
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2010 An accurate analytical model for regenerative chatter vibration in plunge cutting is proposed. Effects of the cross transfer function and the cutting force ratio on chatter stability are considered in the proposed model.
Norikazu SUZUKI +3 more
doaj +1 more source
Optimal Homogeneous ℒp$$ {\boldsymbol{\mathcal{L}}}_{\boldsymbol{p}} $$‐Gain Controller
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Nonlinear ℋ∞$$ {\mathscr{H}}_{\infty } $$‐controllers are designed for arbitrarily weighted, continuous homogeneous systems with a focus on systems affine in the control input. Based on the homogeneous ℒp$$ {\mathcal{L}}_p $$‐norm, the input–output behavior is quantified in terms of the homogeneous ℒp$$ {\mathcal{L}}_p $$‐gain as a ...
Daipeng Zhang +3 more
wiley +1 more source
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT The importance of frequency domain methods in analysis and design of sliding mode (SM) control systems is mostly associated with chattering, where the advantages of these methods over state‐space and Lyapunov's methods are quite obvious.
I. M. Boiko
wiley +1 more source
Shock and Vibration, 2015 The modeling as well as application of process damping in milling of thin-walled workpiece made of titanium alloy is investigated. Titanium alloy used commonly in aviation industry is one typical difficult-to-machine material.
Xin Li +4 more
doaj +1 more source