Buscar recursos académicos

Abstract The current research on gear system dynamics mainly utilizes linear spring damping model to calculate the contact force between gears. However, this linear model cannot correctly describe the energy transfer pro...

Abstract Current and displacement stiffness are important parameters of axial magnetic bearing (AMB) and are usually considered as constants for the control system. However, in actual dynamic work situations, time-varyin...

Background: Scapulohumeral rhythm (SHR) is a key metric for evaluating shoulder joint function. Current established methods of SHR analysis involve 3-dimensional (3D) to 2-dimensional (2D) registration, which requires si...

In this paper, we construct and analyze a mosquito-borne disease model with chemotaxis in a homogeneous environment. Different from traditional modes that mosquitoes disperse with local diffusion, we correlate the chemot...

A large-diameter steel tube pile is used in a machinery factory in Shanghai to test the new produced diesel pile hammer. However, with the increase of the diesel hammer weight, it fails to meet the test requirements and ...

We used dynamic mechanical analysis (DMA) to evaluate soy flour adhesives made with and without a conventional crosslinking agent, polyamideamine-epichlorohydrin (PAE). Fixed-frequency and constant strain rate studies re...

With the expanding use of woven composites in critical load-bearing applications under harsh environmental conditions, it is essential to evaluate how hygrothermal exposure affects their performance. This study aims to s...

Based on the thin plate theory and the elastodynamics theory, the mechanical analysis model and the dynamic differential equations for the infinite elastic plate on orthotropic foundation under moving harmonic loads are ...

ABSTRACT Analysing learners' facial expressions during learning and exploring their learning processes and emotional changes are of great significance for assisting teachers' teaching and promoting smart education. In co...

In this study, an analysis is made of the process of adapting and standardising the Luria-Christense neuropsychological set of tests for use by Brazilian children, teenagers and adults. The process is characterised by re...

We present a study of the microscopic dynamics of water trapped in reverse non-ionic micelles by means of a series of molecular dynamics simulations. The analysis of the effects of micellar confinement on spectroscopical...

A model for studying the mechanical internal stresses into dielectric materials is developed in the present work. The model takes into account the formalism of inclusions in continuous media. The dielectric material is a...

By using the limit analysis upper bound theorem, the elastic solution of dynamic Brazilian tests is optimized. Considering the effects of the radially angled cracks caused by the high-speed impact at contact points of th...

This study provides the first quantitative assessment of how transport accessibility affects population dynamics in 73 Russian urban agglomerations across the intercensal periods 1989–2021. Using OpenStreetMap data, we...

Abstract Background Cardiometabolic multimorbidity (CMM) leads to adverse health outcomes. Based on data from the China Health and Retirement Longitudinal Study (CHARLS), we aimed to explore the cumulative exposure and d...

Abstract In this paper, we investigate the dynamical behaviour and soliton solutions of the M-fractional Kairat-II equation. Initially, soliton solutions are obtained using the new extended direct algebraic method. To en...

Ziyuan Shen,1 Xing Xing,2 Kang Rong,3 Ziyang Geng,4 Ning Yang,5 Linyan Xu,3,6 Hongfeng Ge,7 Wei Sang3,6,8 1Clinical Research Institute, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, People’s Re...

Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by cholinergic dysfunction, making acetylcholinesterase (AChE) a key therapeutic target. Although Garcinia kola has been widely reported ...

Abstract Esophageal cancer (EC) is a malignant tumor characterized by high incidence and mortality, and its complex pathogenesis necessitates the development of effective therapeutic strategies. In this study, we investi...

Malware represents the most critical threat in cybersecurity, meant to compromise the security for any individual or any organization. These are covert software, designed to perform malicious act like data theft, data al...

This paper examines the relationship between population growth and economic growth using panel data from 111 countries over the period from 1960 to 2019. In the first stage of the analysis, we divided the sample into thr...

Abstract This article reviews the status of thermomechanical analysis of the friction stir welding (FSW) process for establishing guidelines for further investigation, filling the available research gaps, and expanding F...

The paper presents a methodology and an example of determining the floor response spectrum of nuclear power plant building structures under earthquake loads. When critical energy infrastructure facilities are consider...

Abstract This study develops and analyzes a Caputo fractional-order SEIHRD model to investigate the transmission dynamics and control of Ebola virus disease. The model ensures positivity, boundedness, and invariance of f...