Results 81 to 90 of about 422,318 (308)

Surface ablation of 52100 bearing steel using femtosecond laser irradiation

, 2018
Laser ablation is a rapid-material removal technique with potential application in remanufacturing of bearings to clean damaged surfaces. This study reports the ablation morphology and change in surface composition of 52100 bearing steel irradiated with ...
Maharjan, Niroj, Zhou, Yu, Zhou, Wei
core   +1 more source

Surface structure effects on hydrodynamic bearing lubrication

, 2004
In bearings a hydrodynamic oil film separates stationary and moving surfaces reducing friction and eliminating wear. This separation is achieved due to the pressure generation in the converging wedge formed by the surfaces.
Glavatskih, Sergei,
core   +1 more source

WLI, XPS and SEM/FIB/EDS Surface Characterization of an Electrically Fluted Bearing Raceway

Lubricants
Electrical bearing currents may disturb the performance of the bearings via electro-corrosion if they surpass a limit of ca. 0.1 to 0.3 A/mm2. A continuous current flow, or, after a longer time span, an alternating current or a repeating impulse-like ...
Omid Safdarzadeh, Alireza Farahi, Andreas Binder, Hikmet Sezen, Jan Philipp Hofmann   +4 more
doaj   +1 more source

Journal Bearings with Hydrophobic Surface

Procedia Engineering, 2012
AbstractIn the article there is presented a modified Reynolds equation. The equation includes the effect of fluid slipping at partially hydrophobic surface. Bearing with the hydrophobic surface of the lining is characterized by a reduction of stiffness and damping for a maximum of one quarter of the original value in comparison with the hydrophilic ...
Pochylý, František, Fialová, Simona, Kozubková, Milada   +2 more
openaire   +1 more source

Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina, Anna Marcé‐Grau, Barbara Masotto, Marta Codina, Lamia BenJemaa, Yasmina Elaribi, Mónica Martinez‐Gallo, Roger Colobran, Angel Sanchez‐Montañez, Irene Valenzuela, Yoshiko Murakami, Alfons Macaya   +11 more
wiley   +1 more source

Development of porous ceramic air bearings [PDF]

, 2001
Porous air bearings enjoy some important advantages over conventional air bearing types such as increased load carrying capacity, higher stiffness and improved damping.
Roach, C.J., Roach, Christopher James
core  

Influence of boundary slip layout on the hydrodynamic performance of partially textured journal bearing by CFD method [PDF]

, 2018
Modification of the lubricated surface by combining the boundary slip and the texturing has proven to enhance the hydrodynamic performance of bearing. The present work explores the combined effect of boundary slip and texturing varying slip layout on the
Akbar, Rizky Amanullah, Rizky Amanullah Akbar, Jamari, Jamari, Jamari, Tauviqirrahman, Mohammad, Mohammad Tauviqirrahman, Muchammad   +6 more
core   +1 more source

The effect of textured surfaces on the hydrodynamic pressure generation in journal bearings

MATEC Web of Conferences, 2018
Surface texturing of the lubricated bearing has proven to improve the hydrodynamic performance. The present paper analyzed the effect of surface texturing on the covergent journal bearing with computational fluid dynamic (CFD) approach.
Muchammad, Tauviqirrahman Mohammad, Akbar Rizqy Amanullah, Hilmy Fuad, Jamari   +4 more
doaj   +1 more source

A Systematic Review and Meta‐Analysis of the Recurrence of Autoimmune Encephalitis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Autoimmune encephalitis (AE) is a disease with a potential for recurrence, and patients receive immunotherapy to prevent it. However, there is no consensus on the duration of immunotherapy. This study aimed to determine the recurrence rate and identify the risk factors for AE to provide guidance on the duration of immunotherapy ...
Shangkai Bai, Sen Zhang, Haipei Zhang, Yating Zhang, Junhong Guo, Xiaoyan Yang   +5 more
wiley   +1 more source

Journal bearing lubrication monitoring based on spectrum cluster analysis of vibration signals

, 2015
Journal bearings are critical components for many important machines. Lubrication analysis techniques are often not timely and cost effective for monitoring journal bearings.
Gu, Fengshou, Ball, Andrew, Towsyfyan, Hossein, Wei, Nasha, Hassin, Osama   +4 more
core