Results 51 to 60 of about 12,216,408 (279)

Effect of physical and chemical parameters of graphene on friction and wear properties of PTFE filled with low content graphene

Journal of Aeronautical Materials, 2020
4 types of graphene were used to fabricate graphene/polytetrafluoroethylene (PTFE) composites with loadings of 0.5% and 1% respectively. The average size, thickness, specific surface area and carbon/oxygen ratio (C/O ratio) of these graphene were ...
ZHU Qiaosi, LI Jiongli, GUO Jianqiang, LI Xuerui, LIANG Jiafeng, LI Yue, WANG Xudong   +6 more
doaj   +1 more source

Influence of Si₃N₄ on the Dry Sliding Wear Characteristics of Stir-Cast Cu-10Sn/xSi₃N₄ Metal Matrix Composite for Bearing Applications

Lubricants, 2022
Bronze metal matrix composites (MMCs) are futuristic materials that may find applications in automobile, aviation, and marine industries, specifically for propellers in submarines, bearings, and bushings for defence purposes.
Sooraj Satheesh, Gokul Krishna Gopakumar Priya, Govind Venugopal, Anuranjan Anil, Jayakrishna Ajithkumar Jayasree, Anandhan Ajan Vishnu, Karthik Venkitraman Shankar, Anil Kumar   +7 more
doaj   +1 more source

Factors Associated With the Rising Trend in Self‐Reported Cognitive Disability Among U.S. Adults Aged 18–39 From 2013–2024

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Building on our prior Behavioral Risk Factor Surveillance System analysis identifying adults aged 18–39 as the primary driver of the national increase in self‐reported cognitive disability, we examined factors associated with this rise using 2013–2024 U.S. BRFSS data. Methods We analyzed U.S.
Adam de Havenon, Ka‐Ho Wong, Mirriam Mananah, Christopher D. Anderson, Ada Fenick, Amy Arnsten, Arman Fesharaki‐Zadeh, James C. McPartland, Mary L. Adams, Kevin N. Sheth   +9 more
wiley   +1 more source

Friction and Wear Properties of Copper/Carbon/RB Ceramics Composite Materials under Dry Condition

Tribology Online, 2008
In order to realize reducing wear of both overhead wires and pantograph sliders, the authors have developed new composite materials for pantograph sliders by using hard porous carbon materials “RB ceramics”.
Kei Shibata, Takeshi Yamaguchi, Junichiro Mishima, Kazuo Hokkirigawa   +3 more
doaj   +1 more source

Microstructure and wear behavior of austempered high carbon high silicon steel

MATEC Web of Conferences, 2018
In the present investigation, the influence of austempering temperature and time on the microstructure and dry sliding wear behavior of high silicon steel was studied.
Acharya Palaksha, Kumar Ajit, Bhat Ravishankar   +2 more
doaj   +2 more sources

Association Between Neurofilament Light Chain and Real‐World Ambulatory Function in Progressive MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurofilament light chain (NfL) is a biomarker of neuroaxonal injury in multiple sclerosis (MS), yet associations with functional outcomes remain unclear. Longitudinal associations between serum NfL (sNfL) and daily step count (STEPS) from wearable devices were assessed in a large international progressive MS cohort.
Gabby B. Joseph, Megan McCune, Riley Bove, Ahmed Abdelhak, Bruce A. C. Cree, Valerie J. Block   +5 more
wiley   +1 more source

Predicting UHMWPE wear: decreasing wear rate following a change in sliding direction

, 2010
The patient demographic for total joint replacement is becoming younger and more active leading to increased performance expectations [1]. To develop new products that meet these demands, computer simulations that predict wear are emerging as potential ...
Taylor, M., Dressler, M.R., Schlacter, A.J., Ernsberger, C., Ross, M.A., Strickland, A.M.   +5 more
core   +1 more source

Evaluation of Mechanical and Tribological Aspect of Self-Lubricating Cu-6Gr Composites Reinforced with SiC–WC Hybrid Particles

Nanomaterials, 2022
Because of their high thermal conductivity, good corrosion resistance, and great mechanical qualities, copper matrix composites are appealing materials utilized in a variety of industries.
Üsame Ali Usca, Serhat Şap, Mahir Uzun, Khaled Giasin, Danil Yurievich Pimenov   +4 more
doaj   +1 more source

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

Arthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos, José Miguel Sequí‐Sabater, Diego Benavent   +2 more
wiley   +1 more source

Health Care Use Among Patients Presenting to Emergency Department for Gout Flares in Ontario, Canada: A Population‐Based Health Systems Analysis

Arthritis Care &Research, EarlyView.
Objective We characterized emergency department (ED) gout visits and identified patient characteristics and health services patterns contributing to ED presentations. Methods We conducted a population‐based study of ED gout visits in Ontario, Canada, between 2014 and 2023.
Timothy S. H. Kwok, Samantha Morais, William K. Silverstein, Clare L. Atzema, Gregory Choy, Priyanka Chandratre, Ping Li, Jessica Widdifield   +7 more
wiley   +1 more source