Results 211 to 220 of about 1,327,268 (327)

Multiple Regression Analysis of Ultrasound and Clinical Features for Quantitative Evaluation of Tubal Pregnancy Rupture

open access: yesJournal of Ultrasound in Medicine, EarlyView.
The aim is to search for quantitative indicators of ultrasound and clinical features that suggest tubal pregnancy rupture, and to identify independent risk factors for tubal pregnancy rupture through multiple regression analysis. Retrospective analysis of 166 cases of tubal pregnancy was confirmed by laparoscopy, including 97 cases of unruptured type ...
Shuang Gui   +4 more
wiley   +1 more source

Aging of Tetrafluoroethylene Propylene (FEPM) Material in High‐Pressure HighTemperature Hydrogen Sulfide Downhole Environment: Theory, Modeling, Experiments, and Material Lifetime Prediction

open access: yesMacromolecular Theory and Simulations, EarlyView.
A novel approach that integrates AI‐based methodology, laboratory experimentation, and field application experience to accurately predict the lifespan of elastomeric materials in harsh downhole environments. ABSTRACT This paper presents a physics‐driven neural network (PINN) model to capture the constitutive behavior, elongation at break (EAB), modulus,
Aref Ghaderi   +6 more
wiley   +1 more source

A Recursive Tuning Approach for the Model-Free PID Controller Design

open access: diamond, 2018
Jiadong Wang   +3 more
openalex   +1 more source

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