Results 121 to 130 of about 28,074 (208)

Distribution of Electrical Resistivity in Single Carbon Fiber Filaments and Its Correlation With Tensile Modulus

Advanced Engineering Materials, Volume 28, Issue 6, 18 March 2026.
A statistical framework is applied to quantify the distribution of electrical resistivity among individual filaments of two commercially available carbon fiber types. Correlations between filament resistivity, tensile modulus, and diameter are examined and complemented by TEM analysis to provide new insight into filament‐level variability relevant for ...
Nils Wieja, Daniel Sebastian Wolz, Philip Johannes Steinbild, Markus Löffler, Darius Pohl, Jan Wolf, Anja Winkler, Thomas Behnisch, Bernd Rellinghaus, Maik Gude   +9 more
wiley   +1 more source

Free‐Volume Regulation Enables Significantly Enhanced Electrical Breakdown via Short‐Chain Molecular Spatial‐Positioning Intercalation into Poly(vinylidene fluoride)

Advanced Science, Volume 13, Issue 14, 9 March 2026.
An innovative molecular spatial‐positioning shimming strategy is developed to optimize the electrical properties of poly(vinylidene fluoride) (PVDF). By intercalating polyethylene wax (PE wax) short‐chain molecules into PVDF's free volume, the film achieves a significantly enhanced energy density of 32.67 J cm−3.
Ziyue Wang, Jiyang Xie, Wanbiao Hu
wiley   +1 more source

Poly(vinylidene Fluoride)‐Based Ferroelectric Polymers for Electromechanical Transduction: A Systematic Review of Materials and Actuators

Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.
Poly(vinylidene fluoride) (PVDF)‐based ferroelectric materials exhibit high strains, energy densities and coupling efficiencies, appealing for diverse applications requiring smart material actuators. This work reviews electromechanical transduction in PVDF‐based polymers and their modifications, implementation in actuators, and functional devices ...
Giulio Gallucci, Andres Hunt
wiley   +1 more source

Using Multiple Regression Models and Methods to Estimate Fatigue‐Life Distributions and Construct Constant‐Life Diagrams

Applied Stochastic Models in Business and Industry, Volume 42, Issue 2, March/April 2026.
ABSTRACT Fatigue is the most common reliability failure mechanism and has been studied widely since the 19th century. Material specimens are used in laboratory experiments to obtain fatigue test data. An S‐N curve is used to depict the relationship between the stress (or strain) S$$ S $$ and the number of cycles to failure N$$ N $$. Statistical methods
Diaz F. Aksioma, William Q. Meeker, Huaiqing Wu   +2 more
wiley   +1 more source

Study on the Law of Multi‐Fracture Propagation in Different Fracturing Fluid Viscosity

Energy Science &Engineering, Volume 14, Issue 3, Page 1339-1352, March 2026.
Samples and equipment Sample preparation Test equipment Analysis of test results Fracture propagation morphology Influence of fracturing fluid viscosity on crack initiation time/(fracture initiation pressure) Evolution law of injection pressure Cumulative relation curve of pressure–time–acoustic ABSTRACT Using the TCHFSM‐I large‐scale accurate triaxial
Zhixing Zhang, Xiang Fu, Yuedong Liu, Xiaoqiang Zhang, Yulong Jiang   +4 more
wiley   +1 more source

Quantifying Parametric Influence on Cuttings Transport in Deviated Deep Wells Using Global Sensitivity Analysis Methods

Energy Science &Engineering, Volume 14, Issue 3, Page 1398-1415, March 2026.
Cuttings transport simulation workflow. ABSTRACT Efficient cuttings transport is essential for wellbore stability and minimizing non‐productive time in deviated and horizontal wells. This study applies global sensitivity analysis (GSA) to evaluate the influence of 14 drilling parameters on cuttings transport using WellPlanTM hydraulic simulations ...
Esraa A. Refaie, Said K. El‐Sayed, Ahmed Z. Noah, Mostafa M. Abdelhafiz   +3 more
wiley   +1 more source

A comparative study of estimation methods for the New Sine Topp-Leone Fréchet distribution

Scientific African
Modeling and fitting complex datasets are crucial domains in various scientific fields. This article presents the sine Topp-Leone Fréchet distribution, a new probability distribution obtained by integrating the Fréchet distribution with the sine Topp ...
Amal S. Hassan, Emadeldin I.A. Ali, Hanene Hamdani, Ahmed M. Gemeay, Ahmed W. Shawki, Mohammed Elgarhy   +5 more
doaj   +1 more source

Joint Modeling of Birth Outcomes Using a Copula Distributional Regression Approach

Health Economics, Volume 35, Issue 3, Page 399-408, March 2026.
ABSTRACT Low birth weight and preterm birth are key indicators of neonatal health, influencing both immediate and long‐term infant outcomes. While low birth weight may reflect fetal growth restrictions, preterm birth captures disruptions in gestational development. Ignoring the potential interdependence between these variables may lead to an incomplete
Giampiero Marra, Rosalba Radice
wiley   +1 more source

Time to Blindness and Associated Factors Among Glaucoma Patients Under Treatment at Governmental Hospitals in Amhara Region, Ethiopia; Application of Gamma Shared Frailty Accelerate Failure Time Model

Health Science Reports, Volume 9, Issue 3, March 2026.
ABSTRACT Background and Aims In Ethiopia, glaucoma and related cases account for 5.2% of the irreversible blindness and is the fifth main cause of blindness. The aim of this study was to investigate the time to blindness and associated factors among glaucoma patients under treatment at government hospitals in Amhara region, Ethiopia.
Awoke Seyoum Tegegne, Nurye Seid Muhie
wiley   +1 more source

THE DOUBLY-TRUNCATED EXPONENTIATED INVERSE WEIBULL DISTRIBUTION

Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi - B Teorik Bilimler, 2018
In this study, we introduce the five-parameter doubly-truncated exponentiated inverse Weibull distribution, where the truncation points are known, and consider its basic properties. Formulas for moment generating function, characteristic function, mean, variance and kurtosis of the distribution are derived.
openaire   +4 more sources