Results 51 to 60 of about 29,935 (302)

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  

Stability Analysis of a Turbocharger Rotor System Supported on Floating Ring Bearings

, 2012
The stability of a turbocharger rotor is governed by the coupling of rotor dynamics and fluid dynamics because the high speed rotor system is supported on a pair of hydrodynamic floating ring bearings which comprise of inner and outer fluid films in ...
Gu, Fengshou, Gu, F. S., Ball, Andrew, Zhen, Dong, Ball, A. D., Zhen, D., Shi, Zhanqun, Zhang, H., Zhang, Hongyu, Shi, Z. Q.   +9 more
core   +1 more source

Triangular Index Ratio as an Alternative Method to the Alpha Angle for Defining the Presence of Cam Morphology: A Prospective Cohort Study

Arthritis Care &Research, EarlyView.
Objective Cam morphology, which is a significant risk factor for hip osteoarthritis, is commonly quantified by the alpha angle (AA). This study aims to explore the potential of the triangular index ratio (TIR) to quantify cam morphology on anteroposterior radiographs by assessing the association between TIR‐defined cam morphology and the development of
Jinchi Tang, Fleur Boel, Michiel M. A. van Buuren, Noortje S. Riedstra, Myrthe A. van den Berg, Jos Runhaar, Sita Bierma‐Zeinstra, Rintje Agricola   +7 more
wiley   +1 more source

Elastohydrodynamic analysis of multistep texture effects and partial surface roughness on the tribological performance of steel journal bearings

Discover Applied Sciences
Journal bearings are critical components designed to facilitate the smooth and consistent rotation of shafts around specific axes. To meet the demands for efficient and cost-effective applications in high-speed machinery, it is imperative to enhance the ...
Muchammad Muchammad, Mohammad Tauviqirrahman, Yusuf Muhammad Rizki, Imam Syafaat, Farikha Maharani, Muhammad Imam Ammarullah   +5 more
doaj   +1 more source

Turbulence Effects in Tilting Pad Journal Bearings: A Review

Lubricants, 2022
This paper reviews the current knowledge on turbulence effects in tilting pad journal bearings. Turbulence is becoming increasingly important in the design of hydrodynamic bearings due to the trend to increase power density in turbomachines and ...
Alberto Betti, Paola Forte, Enrico Ciulli   +2 more
doaj   +1 more source

Biopsychosocial Determinants of Hand Function and Its Trajectories Over Five Years in Patients With Hand Osteoarthritis

Arthritis Care &Research, EarlyView.
Objective This study aimed to investigate hand function trajectories over five years in primary hand osteoarthritis (OA). Additionally, determinants of baseline and longitudinal hand function were assessed. Methods A total of 538 patients with both baseline and five‐year study visits were analyzed.
Annemiek V. E. M. Olde Meule, Coen van der Meulen, Jos Runhaar, Frits R. Rosendaal, Margreet Kloppenburg   +4 more
wiley   +1 more source

Oil film analysis and axial uniform distribution optimization for the sliding bearing in GTF engines

Xibei Gongye Daxue Xuebao
The journal bearings of planetary gear are the key technologies of the gearbox in geared turbo fan engine(GTF). GTF journal bearings are usually operated under high-speed, heavy-load, and large-eccentricity conditions.
WANG Lin, LU Ruye, GAO Tian
doaj   +1 more source

A Magnetic Journal Bearing

Bulletin of JSME, 1968
This report is related to the development of a magnetic journal bearing which can support a rotating shaft without any mechanical contact. A complete levitation is successfully achieved by means of a combination of permanent magnets and servo-controlled electromagnets. The principle and the characteristics of this bearing are as follows.
SHIMIZU, Hisaji, TANIGUCHI, Osamu
openaire   +2 more sources

Associations of Rheumatoid Arthritis Disease Activity With Frailty Over Five Years of Follow‐up

Arthritis Care &Research, EarlyView.
Objective To evaluate whether rheumatoid arthritis (RA) disease activity is associated with frailty both in cross‐section and longitudinally. Methods Participants within the Veterans Affairs Rheumatoid Arthritis (VARA) registry enrolled from 2003 to 2022 were included.
Courtney N. Loecker, Yangyuna Yang, Punyasha Roul, Aaron Baraff, Myra S. Schmaderer, Lani Zimmerman, Kaleb Michaud, Namrata Singh, Grant W. Cannon, Gary Kunkel, Ted R. Mikuls, Ariela R. Orkaby, Joshua F. Baker, Bryant R. England, Katherine D. Wysham   +14 more
wiley   +1 more source

Cracking the Code: Which Ocular Symptoms Predict Dry Eye Signs? Insights From a Large International Sicca Registry

Arthritis Care &Research, EarlyView.
Objective The study aimed to identify symptom‐based predictors of dry eye disease (DED) signs in the Sjögren's International Collaborative Clinical Alliance (SICCA) cohort. Methods We performed a retrospective analysis examining 16 ocular symptoms (most graded 0–4) and artificial tear (AT) use (graded 0–3) as predictors of DED signs (abnormal ocular ...
Pragnya R. Donthineni, Chloe Shields, Rohit Muralidhar, Shreya Bhatt, Alan Baer, Robert Fox, Sara S. McCoy, Anat Galor   +7 more
wiley   +1 more source