Results 91 to 100 of about 261,095 (203)

Lifestyle modification in atrial fibrillation: Mechanisms, phenotypes and ablation outcomes

Experimental Physiology, EarlyView.
Abstract Atrial fibrillation (AF) is the most prevalent sustained cardiac arrhythmia and is associated with significant morbidity, mortality and healthcare utilization. Catheter ablation is increasingly used as a rhythm‐control intervention for patients with symptomatic paroxysmal and persistent AF, yet recurrence rates remain suboptimal.
Konstantinos Grigoriou, Paschalis Karakasis, Panagiotis Theofilis, Konstantinos Pamporis, Panayotis K. Vlachakis, Anastasios Apostolos, Nikolaos Ktenopoulos, Barbara Fyntanidou, Efstratios Karagiannidis, Dimitrios Patoulias, Antonios P Antoniadis, Nikolaos Fragakis   +11 more
wiley   +1 more source

Mechanisms regulating cerebral perfusion during running exercise: Influence of foot strike‐induced pulsatility oscillations, CO2 reactivity and BP

The Journal of Physiology, EarlyView.
Abstract figure legend Young, healthy males and females completed an incremental running test, demonstrating a progressive increase in middle cerebral artery blood velocity (MCAv) up to maximal exercise despite reductions in end‐tidal CO2. To investigate the underlying mechanism, foot‐strike timing was synchronized to the diastolic phase of the cardiac
Lydia L. Simpson, Dean R. Perkins, Connor A. Howe, Christina D. Bruce, William K. Cornwell III, Justin S. Lawley   +5 more
wiley   +1 more source

Strategies for increasing the operating frequency range of vibration energy harvesters: a review

, 2010
This paper reviews possible strategies to increase the operational frequency range of vibration-based micro-generators. Most vibration-based micro-generators are spring-mass-damper systems which generate maximum power when the resonant frequency of the ...
Beeby, Steve, Zhu, Dibin, Tudor, John
core   +1 more source

Cross‐Entropy of Power Spectral Density Function: A Modal Identification Framework

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 12, Page 3012-3028, 10 October 2026.
ABSTRACT The power spectral density (PSD) function of measured structural response contains a significant amount of information, including the modal parameters (natural frequencies, damping ratios). Output‐only system identification or modal identification technique can be used for extracting such modal parameters from the measured response or its ...
Su‐Hong Kim, Jae‐Seung Hwang, Dae‐Kun Kwon, Ahsan Kareem   +3 more
wiley   +1 more source

Design and Analysis of Silicon Resonant Accelerometer

Research Journal of Applied Sciences, Engineering and Technology, 2013
In this study, we present an approach for micromechanical resonant accelerometer design, structural optimization and testing method of a kind of resonant accelerometer which is excited by the electrostatic force and detected by the change of capacitance.
Jing Li, Shangchun Fan, Zhanshe Guo
openaire   +1 more source

An Ultra-High Resolution Resonant MEMS Accelerometer

, 2019
This paper reports initial results on the implementation of a high-resolution resonant MEMS accelerometer with a noise floor of 17.8\text{ng}/\surd{}\text{Hz} and a bias stability of 17.5ng with a differential frequency readout configuration.
Zhao, C, Seshia, A, Zou, X, Pandit, M, Sobreviela, G, Steinmann, P, Mustafazade, A, ,   +7 more
core  

Learning Rocking Dynamics From Sparse Shake‐Table Data With Interpretable Physics‐Informed Neural Networks

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 12, Page 3115-3136, 10 October 2026.
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, Christian Málaga‐Chuquitaype   +1 more
wiley   +1 more source

A Micromachined Silicon-on-Glass Accelerometer with an Optimized Comb Finger Gap Arrangement

Micromachines
This paper reports the design, fabrication, and characterization of a MEMS capacitive accelerometer with an asymmetrical comb finger arrangement. By optimizing the ratio of the gaps of a rotor finger to its two adjacent stator fingers, the sensitivity of
Jiacheng Li, Rui Feng, Xiaoyi Wang, Huiliang Cao, Keru Gong, Huikai Xie   +5 more
doaj   +1 more source

MEMS resonant accelerometer having improved electrical characteristics

, 2010
A MEMS resonant accelerometer is disclosed, having: a proof mass coupled to a first anchoring region via a first elastic element so as to be free to move along a sensing axis in response to an external acceleration; and a first resonant element ...
B. Simoni, CORIGLIANO, ALBERTO, COMI, CLAUDIA   +2 more
core  

Physical Activity and Adiposity Markers at Older Ages: Accelerometer Vs Questionnaire Data [PDF]

, 2015
Physical activity is critically important for successful aging, but its effect on adiposity markers at older ages is unclear as much of the evidence comes from self-reported data on physical activity.
van Hees, Vincent ,, Singh-Manoux, Archana, Bell, Joshua, A, Bell, Joshua A., Elbaz, A, Cogranne, Pol, Sabia, Séverine, van Hees, VT, van Hees, Vincent T, Kivimaki, Mika, Bell, Joshua A, Cogranne, P, Kivimaki, M, van Hees, Vincent, T, Elbaz, Alexis, Singh-Manoux, A, Bell, JA, van Hees, Vincent T., Bell, Joshua ,, Sabia, S   +19 more
core   +1 more source