Article
Automation & Control Systems
Mojtaba Ahmadieh Khanesar, Minrui Yan, Wahyudin P. Syam, Samanta Piano, Richard K. Leach, David T. Branson
Summary: This article proposes a neural network separation approach to include nonlinear static friction in models of industrial robots. By separating the static friction terms and treating them independently, a highly accurate mathematical model for static friction is obtained. Experimental results demonstrate the high accuracy of the proposed methodology in static conditions.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2023)
Article
Multidisciplinary Sciences
Jean-Baptiste Fleury, Vladimir A. Baulin
Summary: Millions of tons of plastic are dumped into oceans annually. Microplastics, commonly found in living organisms, can lead to increased membrane tension, potentially reducing membrane lifetime.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Engineering, Chemical
Maik Tepper, Yassin Eminoglu, Nicola Mehling, Julius Walorski, Hannah Roth, Matthias Wessling
Summary: Turbulence promoters can enhance the efficiency of membrane applications, but the combination of static mixers with hollow fiber membranes has been challenging due to assembly difficulties. This study presents a scalable method for fabricating hollow fiber membranes with integrated static mixers, achieved through a single-step spinning process. The results demonstrate that this technique allows for the creation of static mixer-membranes with improved mass transfer properties.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Clinical Neurology
Fabiane de Castro Vaz, Leonardo Petrus, Wagner Rodrigues Martins, Isabella Monteiro de Castro Silva, Jade Arielly Oliveira Lima, Nycolle Margarida da Silva Santos, Natalia Turri-Silva, Fayez Bahmad Jr
Summary: This study analyzes the effects of cochlear implant surgery on postural stability in adult patients through multiple vestibular function tests. The findings show that vestibular alterations and balance disorders are the most common complications caused by cochlear implant placement. VEMP and caloric test are the most commonly used tests to assess vestibular function.
FRONTIERS IN NEUROLOGY
(2022)
Article
Chemistry, Physical
Muhammed F. Erguder, Markus Deserno
Summary: This study reveals systematic errors in measuring the elastic properties of lipid membranes through computer simulation and data analysis, and proposes standards and recommendations to assist in the choice of fluctuation analysis. While observable shifts from large-wavelength limits vanish in principle, for intrinsically local parameters, such as twist modulus or splay-tilt coupling, there is no exact limit, making not all choices easily verifiable.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Otorhinolaryngology
Kim E. Hawkins, Elodie Chiarovano, Serene S. Paul, Hamish G. MacDougall, Ian S. Curthoys
Summary: This study found differences in otolith function and reflex pathways between Parkinson's disease patients and healthy controls, with PD patients showing more responses triggered by taps, related to fall history, while responses triggered by clicks were mainly absent in both groups. Static otolith function was more affected in PD patients, and abnormal results in the subjective visual vertical test were not related to VEMP responses.
EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Chang Li, Hai Qing, Cun-Fa Gao
Summary: In this study, the bending response of Euler-Bernoulli beam was analyzed using three nonlocal strain gradient models with high-order boundary conditions and modified nonlocal strain and stress gradient models. The inconsistency of a nonlocal strain gradient model was examined extensively under different conditions, and consistent softening and toughening responses were observed when using the modified nonlocal strain and stress gradient model.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2021)
Article
Plant Sciences
L'ubos Moravcik, Radko Vincur, Zdenka Rozova
Summary: This study focuses on tree risk assessment through innovative methods such as terrestrial laser scanning for 3D geometry acquisition and finite element analysis for structural evaluation. Acoustic tomography is used to determine precise cross sections and identify potentially hazardous areas within the tree structure. The suggested method can be applied for predicting risky trees and is especially suitable for monumental trees.
Review
Clinical Neurology
Qiong Wu, Qin Zhang, Qianwen Xiao, Yuzhong Zhang, Zichen Chen, Shuyun Liu, Xueyan Wang, Yong Xu, Xin-Da Xu, Jingrong Lv, Yulian Jin, Jun Yang, Qing Zhang
Summary: This study aimed to investigate the changes in vestibular function in pediatric patients after cochlear implantation (CIM). The results showed that pediatric patients with CIM may experience vestibular dysfunction, which could lead to delays in balance and perception milestones.
FRONTIERS IN NEUROLOGY
(2022)
Article
Engineering, Civil
Heng Cai, Fangqian Deng, Yanxiang Yan
Summary: This paper develops a fiber-based computational model for studying the nonlinear behaviors of UHPCFST columns. Comparative analyses between predicted and experimental results verify the robustness and reliability of the model. The research shows that the technique can predict the structural performance of UHPCFST columns satisfactorily.
KSCE JOURNAL OF CIVIL ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Duy Vo, Pana Suttakul, Jaroon Rungamornrat, Pruettha Nanakorn
Summary: This study addresses the deficiency of means for analysis of planar arbitrarily curved microbeams. Specifically, it develops a formulation for static analysis using the modified couple stress theory and the Euler-Bernoulli beam model. The study also presents a systematic framework for determining strain and stress measures and utilizes the virtual work principle to derive governing equations and boundary conditions. The study verifies the proposed beam formulation through comprehensive examples and confirms the robustness and efficiency of the implemented algorithm.
APPLIED MATHEMATICAL MODELLING
(2022)
Article
Engineering, Multidisciplinary
Jun Lei, Pengsheng Ding, Chuanzeng Zhang
Summary: This study develops a 2D boundary element method based on a consistent couple stress elasticity theory to solve boundary value problems in couple stress elastic materials. Various numerical and semi-analytical techniques are utilized to enhance the accuracy of calculations.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2021)
Review
Neurosciences
Q. Montardy, M. Wei, X. Liu, T. Yi, Z. Zhou, J. Lai, B. Zhao, S. Besnard, B. Tighilet, C. Chabbert, L. Wang
Summary: Glutamatergic neurons play a crucial role in immediate and strong posturo-locomotor deficits, while GABAergic neurons do not have a significant impact. This indicates a fundamental role for VNVGluT2+ neurons in balance and posturo-locomotor functions.
PROGRESS IN NEUROBIOLOGY
(2021)
Article
Neurosciences
Hiroki Watanabe, Taku Ito, Natsuki Aoki, Jing Bai, Keiji Honda, Yoshiyuki Kawashima, Taro Fujikawa, Takuo Ikeda, Takeshi Tsutsumi
Summary: Patients with SLC26A4 mutations have variable hearing loss and vestibular dysfunction. Slc26a4 mutant mice also exhibit vestibular deficits, but the underlying pathogenesis of the symptoms is unclear. In this study, the researchers evaluated the equilibrium function and correlated it with morphological changes in Slc26a4d/d mice. The results showed that vestibular impairments are mainly related to otoconia formation and morphology, rather than hair cell degeneration.
NEUROBIOLOGY OF DISEASE
(2023)
Article
Engineering, Mechanical
Daniela Scorza, Raimondo Luciano, Andrea Caporale, Sabrina Vantadori
Summary: In this paper, the behavior of an edge-cracked nanobeam under both Mode I and Mixed-Mode (I + II) static bending loading is analyzed using the stress-driven nonlocal model (SDM), which is applied for the first time in the case of Mixed-Mode loading. The cracked nanobeam is modeled by dividing it into two beam segments connected through a massless elastic rotational spring located at the cracked cross section. The bending stiffness of the cracked cross section is computed using the Griffith energy criterion and the conventional linear elastic fracture mechanics, considering cracks under both Mode I and Mixed-Mode loading. Finally, an edge-cracked cantilever nanobeam subjected to a transversal point load at the free end is analyzed, and the static deflection is calculated and discussed for different crack parameters.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2023)