Article
Polymer Science
Md Zillur Rahman, Huaizhong Xu
Summary: This study investigates the effects of fibre content, fibre orientation, and frequency on the dynamic behaviour of flax fibre-reinforced polypropylene composites (FFPCs) and their potential for vibration damping. It is found that fibre orientation has the most significant impact on damping, with 45 degrees and 60 degrees orientations achieving the highest loss factors. The study also highlights the comparable mechanical properties of flax fibre composites to glass fibre composites, making them suitable for structural applications.
Article
Engineering, Mechanical
Yingtao Si, Jianpo Liu, Fengtian Li, Yongxin Wang, Jiancun Song, Fuquan Zhao
Summary: Numerical simulation and experiments were conducted to investigate the fracture characteristics of roadways under varying blasting wave frequencies and geo-stresses. The results showed that the excavation damage zone and microcrack types were primarily influenced by the principal stress direction. Low-frequency blast waves caused significant damage to the surrounding rock, while high-frequency blast waves mainly damaged the sides of the facing blast. Microcracks were more prone to generate in regions coupling with high-stress concentration areas induced by principal stress and disturbed regions diffracted by blast waves. The study highlights the importance of considering the damage-prone regions triggered by blasting waves with varying dominant frequencies under different lateral pressure coefficients in roadway support design.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Physics, Fluids & Plasmas
C. A. Knapek, M. Schwabe, V. Yaroshenko, P. Huber, D. P. Mohr, U. Konopka
Summary: The properties of self-excited dust acoustic waves under active compression of the dust particle system were studied experimentally. The wave properties were found to be manipulated by changing the discharge volume and dust particle density. Complementary experiments under microgravity conditions showed the need for a better microgravity environment. Theoretical modeling supported the experimental findings, showing the waves as a new observation of the dust acoustic mode.
PHYSICS OF PLASMAS
(2023)
Article
Chemistry, Analytical
Huimin Han, Li Wei, Nizar Faisal Alkayem, Maosen Cao
Summary: The mechanical properties of ice in cold regions are influenced by temperature variations. Current methods using one-off and destructive compression and strength experiments cannot capture the varying properties of ice due to temperature changes. An embedded ultrasonic system is proposed to inspect the mechanical properties of ice in real-time. This system can continuously measure the wave propagation velocity in ice and obtain ice properties, outperforming existing methods and holding promise for monitoring ice conditions in cold regions.
Article
Materials Science, Multidisciplinary
A. R. Degheidy, A. M. AbuAli, Elkenany B. Elkenany
Summary: This study investigated the pressure dependence of electronic and optical properties of InPxAsySb1-x-y alloys lattice matched to InAs substrate. The results were in good agreement with experimental and theoretical data, and may serve as a reference for future experimental values at high pressures. The fundamental properties of the InPxAsySb1-x-y/InAs system under pressure, such as optical constants and modes of lattice vibration, were the main focus of the study.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Physics, Multidisciplinary
Zhongyao Li, Zhewei Zhao, Haiping Shi, Wenwei Li, Baotian Wang, Peiqing Wang
Summary: The study showed that using PVA as an improvement material can significantly increase the compressive strength of the soil, reduce the degradation caused by wet-dry cycling and water immersion, and have a minor impact on permeability.
FRONTIERS IN PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Hyeongguk An, Youngjoon Roh, Youngseong Jo, Hyuntae Lee, Minhong Lim, Mingyu Lee, Yong Min Lee, Hongkyung Lee
Summary: The development of practical lithium metal batteries (LMBs) is still challenging due to issues such as Li dendrite formation and highly reactive surfaces. In this study, the cycling stability of LMBs under practical conditions was investigated using different commercial separators. The study identified key factors, including pore structure, mechanical stability, and chemical affinity, and found that a polyethylene (PE) separator with high elastic modulus and connected pore structure can effectively regulate Li metal anode (LMA) swelling. Furthermore, a ceramic coating was found to enhance short-circuiting resistance but degrade cycling efficiency due to detrimental interactions with LMAs.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Minxia Shi, Aici Qiu, Junhao Li
Summary: This study investigates the vector magnetic properties of electrical steel sheets under dc-biased flux and rotating magnetic fields of different frequencies. It discusses the corresponding iron loss and rotational eddy current loss, and proposes an enhanced vector magnetic hysteresis model to describe the B-H behavior under these conditions. The accuracy of the model is confirmed by the close agreement between calculated hysteresis loops and experimental measurements, as well as the negligible calculation error of total iron loss.
IEEE TRANSACTIONS ON MAGNETICS
(2021)
Review
Energy & Fuels
Xin Li, Jie Zhang, Cuinan Li, Ben Li, Haoyang Zhao, Rongxin Li, Qi Qi
Summary: The study found that in the process of CBM exploitation, high temperatures lead to increased plastic deformation of coal-rock, resulting in decreased compressive strength and elastic modulus.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Article
Instruments & Instrumentation
Elkenany. B. Elkenany
Summary: The dependence of electronic band structure, optical phonon frequencies, acoustic velocities, and mechanical properties of InP1-xSbx alloys on temperature and pressure were analyzed in this study. The virtual crystal approximation (VCA) with the compositional disorder effect (CDE) was considered. Results showed good agreement with published values and may serve as reference for experimental work, providing insights for optoelectronic applications.
INFRARED PHYSICS & TECHNOLOGY
(2021)
Article
Respiratory System
C. A. Mariano, S. Sattari, K. A. M. Quiros, T. M. Nelson, M. Eskandari
Summary: This study analyzed porcine lung samples using digital image correlation and an electromechanical ventilation system to understand mechanical deformations in the lung during mechanical ventilation. The results showed a linear relationship between lung volumes and local strains, and a nonlinear relationship between lung pressures and strains. Ventilation frequencies did not affect the local stretch response, strain measures increased with greater tidal volumes, and the anisotropic ratio decreased with greater inflation volumes. The study provided valuable insights for computational models and future studies on lung mechanics.
RESPIRATORY RESEARCH
(2022)
Article
Biotechnology & Applied Microbiology
Anastasia Gkousioudi, Xunjie Yu, Jacopo Ferruzzi, Juncheng Qian, Richard D. Wainford, Francesca Seta, Yanhang Zhang
Summary: This study investigated the effects of diet-induced metabolic syndrome and aging on the biomechanical properties of mouse common carotid arteries. The results showed that aging is a dominant factor affecting arterial remodeling, while high fat high sucrose diet accelerates arterial remodeling but is eventually overshadowed by aging.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Fatih Mehmet Coskun
Summary: The admittance characterizations of Os-doped YMnO3 and p-Si contacts were studied using C-V and G-V curves at different frequencies. The devices exhibited behavior similar to a MOS or MIS capacitor due to the ferroelectric thin film at the metal/Si interface. The series resistance effect was observed and measured, showing an impact on the capacitance measurements at different frequencies.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Polymer Science
Hamed Peidayesh, Zdenko Spitalsky, Ivan Chodak
Summary: This study focused on understanding the mechanism of conductivity changes during mechanical deformation for electroconductive composites based on rubber. The results showed that the tensile strength, Young's modulus, and static electrical conductivity of the composites increased with rising vulcanization time. The investigation also revealed the details of the uniaxial cyclic deformation effect on the structure of conductive pathways. The electrical conductivity of the rubber composites increased permanently during repeated cyclic mechanical deformations, while slight increase or nearly constant current was observed for the EPDM composites.
Article
Respiratory System
Yong Song, Seiha Yen, Melissa Preissner, Ellen Bennett, Stephen Dubsky, Andreas Fouras, Peter A. Dargaville, Graeme R. Zosky
Summary: The regional transcriptomic response to mechanical ventilation differs depending on the presence or absence of pre-existing lung injury. Mechanical ventilation induces up-regulation of immune response genes, while the combination of lipopolysaccharide (LPS) and mechanical ventilation disrupts PI3K/Akt and MEK/ERK signaling. This study provides insights into the mechanisms underlying lung inhomogeneity in ventilator-induced lung injury.
RESPIRATORY RESEARCH
(2022)
Article
Engineering, Biomedical
Dana Rutherford, Stephen Exarhos, Changlu Xu, Matt Niacaris, Crystal Mariano, Bryce Dayap, Lorenzo Mangolini, Huinan Liu
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Christopher Rudnicki, Stephen Exarhos, Crystal Mariano, Lorenzo Mangolini
JOURNAL OF NANOPARTICLE RESEARCH
(2020)
Article
Biotechnology & Applied Microbiology
Samaneh Sattari, Crystal A. Mariano, Swathi Vittalbabu, Jalene V. Velazquez, Jessica Postma, Caleb Horst, Eric Teh, Tara M. Nordgren, Mona Eskandari
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2020)
Article
Physiology
Crystal A. Mariano, Samaneh Sattari, Mohammad Maghsoudi-Ganjeh, Mehrzad Tartibi, David D. Lo, Mona Eskandari
FRONTIERS IN PHYSIOLOGY
(2020)
Review
Biotechnology & Applied Microbiology
Mohammad Maghsoudi-Ganjeh, Crystal A. Mariano, Samaneh Sattari, Hari Arora, Mona Eskandari
Summary: Pulmonary diseases driven by pollution, industrial farming, vaping, and the COVID-19 pandemic are increasing morbidity and mortality rates globally. Computational biomechanical models offer enhanced predictive capabilities to understand fundamental lung physiology. A novel reduced-order surface model of the lung has been developed in this study to address the complexities of lung structure and lack of mechanical experiments.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Respiratory System
C. A. Mariano, S. Sattari, K. A. M. Quiros, T. M. Nelson, M. Eskandari
Summary: This study analyzed porcine lung samples using digital image correlation and an electromechanical ventilation system to understand mechanical deformations in the lung during mechanical ventilation. The results showed a linear relationship between lung volumes and local strains, and a nonlinear relationship between lung pressures and strains. Ventilation frequencies did not affect the local stretch response, strain measures increased with greater tidal volumes, and the anisotropic ratio decreased with greater inflation volumes. The study provided valuable insights for computational models and future studies on lung mechanics.
RESPIRATORY RESEARCH
(2022)