Results 21 to 30 of about 4,912,037 (87)

The Riesz basisness of the eigenfunctions and eigenvectors connected to the stability problem of a fluid‐conveying tube with boundary control

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 105, Issue 1, January 2025.
Abstract In the present paper we study the stability problem for a stretched tube conveying fluid with boundary control. The abstract spectral problem concerns operator pencils of the forms Mλ=λ2G+λD+CandPλ=λI−T$$\begin{equation*} \hspace*{6pc}\mathcal {M}{\left(\lambda \right)}=\lambda ^2G+\lambda D+C\quad \text{and}\quad \mathcal {P}{\left(\lambda ...
Mahyar Mahinzaeim, Gen Qi Xu, Xiao Xuan Feng   +2 more
wiley   +1 more source

Controllability and Observability of Nonautonomous Riesz‐Spectral Systems

Abstract and Applied Analysis, Volume 2018, Issue 1, 2018., 2018
There are many industrial and biological reaction diffusion systems which involve the time‐varying features where certain parameters of the system change during the process. A part of the transport‐reaction phenomena is often modelled as an abstract nonautonomous equation generated by a (generalized) Riesz‐spectral operator on a Hilbert space.
Sutrima Sutrima, Christiana Rini Indrati, Lina Aryati, Khalil Ezzinbi   +3 more
wiley   +1 more source

Retrospective Development of an AI Model Combining Ultrasound and Clinical Data for Pediatric Appendicitis Differentiation

Emergency Medicine International, Volume 2025, Issue 1, 2025.
Purpose To differentiate complicated appendicitis (CA) from uncomplicated appendicitis (UA) in children, we developed and validated an artificial intelligence (AI) model using a multimodal approach integrating ultrasound images and clinical data. Methods A retrospective analysis was performed on 372 pathologically confirmed pediatric appendicitis cases
Rongying Tan, Yongteng Li, Jianjun Wang, Jixian He, Xiaoting Ding, Yanlin Mou, Xi Zhang, Chen Zhong, Liucheng Yang, Kai Wu, Canan Akman   +10 more
wiley   +1 more source

Neuroprotective and Memory‐Enhancing Effect of the Combined Extract of Purple Waxy Corn Cob and Pandan in Ovariectomized Rats

Oxidative Medicine and Cellular Longevity, Volume 2017, Issue 1, 2017., 2017
The neuroprotectant and memory enhancer supplement for menopause is required due to the side effects of hormone replacement therapy. Since purple waxy corn cob and pandan leaves exert antioxidant and acetylcholinesterase inhibition (AChEI) effects, we hypothesized that the combined extract of both plants (PCP) might provide synergistic effect leading ...
Woranan Kirisattayakul, Jintanaporn Wattanathorn, Sittichai Iamsaard, Jinatta Jittiwat, Bhalang Suriharn, Kamol Lertrat, Luciano Saso   +6 more
wiley   +1 more source

Evaluation of the antimicrobial activity of heat-cure denture base resin materials incorporated with silver nanoparticles [PDF]

, 2019
Background: Poly (Methyl methacrylic acid) based materials are the most widely used for the fabrication of removable complete and partial dentures.
Alla, Rama Krishna, KN, Raghavendra Swamy, Vyas, Ritu, G, Narasimha Rao, Kandi, Venkataramana, Guduri, Vineeth   +5 more
core   +1 more source

Rational design of diamond through microstructure engineering: From synthesis to applications

Carbon Energy, Volume 6, Issue 7, July 2024.
This review systematically summarizes the structure–property relationship of diamond revealed with the help of transmission electron microscopy‐related techniques. Meanwhile, the graphite‐to‐diamond phase transition that occurred during the growth and fabrication process of the diamond is elucidated.
Yalun Ku, Wentao Huang, Xing Li, Li Wan, Kuikui Zhang, Longbin Yan, Ying Guo, Shaobo Cheng, Chongxin Shan   +8 more
wiley   +1 more source

Numerical Simulation of Generalized Fractional Thermoelasticity With Two Temperature and Phase Lags in a Half Space Using GLA-PINN

Complexity
This research manuscript presents a model of heat conduction incorporating two-phase lags and time fractional derivatives to precisely identify the nonsimple behaviors of thermoelastic materials.
Fazl Ullah Fazal, Muhammad Sulaiman, Mustafa Ahmed Ali   +2 more
doaj   +1 more source

Finite‐strain poro‐visco‐elasticity with degenerate mobility

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 104, Issue 5, May 2024.
Abstract A quasistatic nonlinear model for poro‐visco‐elastic solids at finite strains is considered in the Lagrangian frame using the concept of second‐order nonsimple materials and Kelvin–Voigt‐type viscosity. The elastic stresses satisfy static frame‐indifference, while the viscous stresses satisfy dynamic frame‐indifference. The mechanical equation 
Willem J. M. van Oosterhout, Matthias Liero   +1 more
wiley   +1 more source

Generalized model of thermoelasticity associated with fractional time-derivative operators and its applications to non-simple elastic materials

Open Physics
This study proposes a comprehensive heat conduction model that incorporates fractional time derivatives and two-phase lags to describe the behavior of non-simple thermoelastic materials accurately.
Zakria Adam, Abouelregal Ahmed E., Atta Doaa, Aleselmi Meshary   +3 more
doaj   +1 more source

Biodegradable materials in dentistry: A comprehensive review of current trends [PDF]

The dental industry has witnessed a paradigm shift towards biodegradable materials, driven by the need for sustainable and environmentally friendly solutions.
Kambala, Meena Lakshmi Reddy, Dalli, Swetha Reddy, Marna, Anil Kumar, Kandikatla, Pradeep   +3 more
core   +1 more source