Results 151 to 160 of about 77,013 (289)

Fault Diagnosis in an Induction‐Motor‐Driven Rotating Machinery Test Rig Under Unseen Operating Loads Using Multimodal Fusion and Multiagent Deep Reinforcement Learning

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Conventional fault‐diagnosis methods, largely grounded in one‐dimensional signal analysis and linear modeling, often fail to detect complex nonlinear faults in rotating machinery operating under variable loads. Data‐driven approaches also face challenges in extracting discriminative information from high‐dimensional multisensor measurements ...
Amirreza Marzband, Javad Poshtan
wiley   +1 more source

An Approach for Computationally Efficient Yet Accurate Modeling of Vibrating Machines With Neidhart Springs

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Accurate modeling of vibrating machines equipped with Neidhart springs is challenging due to the strong nonlinearities introduced by the elastomer–metal torsional elements and the constraints imposed by their kinematic arrangement. Multibody modeling methodologies for such vibrating machines are often computationally demanding, thus limiting ...
Davide Galli   +3 more
wiley   +1 more source

Demo 13-16 Accelerometers

open access: yes, 2001
An accelerometer provides an indication of acceleration. Two accelerometers are shown in the video, one a light ball tethered to the bottom of a jar of water, and one a heavy ball hanging from the top of a jar of water.

core  

Non‐Invasive Triage of Bladder Outlet Obstruction and Detrusor Underactivity in Men With Lower Urinary Tract Symptoms: A Narrative Review and Conceptual Framework for Depth‐Aware Multimodal Transcutaneous Testing

open access: yesNeurourology and Urodynamics, EarlyView.
ABSTRACT Introduction Differentiating bladder outlet obstruction (BOO) from detrusor underactivity (DU) remains a major unmet need in the management of lower urinary tract symptoms in men. Although pressure–flow urodynamics provide a definitive physiological classification, their invasiveness limits their widespread use.
Sehwan Kim   +3 more
wiley   +1 more source

Weight Loss and Physical Activity Reduces Perceived Physical Fatigability Among Older Adults With Obesity

open access: yesObesity, EarlyView.
ABSTRACT Objective This study aimed to evaluate the impact of three lifestyle interventions on perceived physical fatigability. Methods Concurrent with a dietary weight loss program (caloric deficit ~400 kcal/day, weekly dietitian support), older adults with obesity (N = 183) were randomized to three groups: aerobic exercise (150–200 min/week of ...
Reagan E. Garcia   +6 more
wiley   +1 more source

Continuous Wrist‐Derived Heart Rate Correlates With mYPAS Scores and Detects Between‐Assessment Heart‐Rate Elevations in Children: A Feasibility Study

open access: yesPediatric Anesthesia, EarlyView.
ABSTRACT Background Perioperative anxiety affects most children undergoing surgery and predicts emergence delirium, postoperative pain, and behavioral change. The validated modified Yale Preoperative Anxiety Scale (mYPAS) is scored at only a few discrete timepoints, leaving physiologic status between assessments unmeasured.
Shawn D. Safford   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy