Results 61 to 70 of about 108,901 (303)

Thermo‐Mechanically Recyclable Smart Textiles from Circularly Knitted Liquid Crystal Elastomer Fibers

open access: yesAdvanced Functional Materials, EarlyView.
Reprogrammable multi‐material smart textiles knitted from liquid crystal elastomer fibers undergo 2D and 3D deformation under thermal and photo stimuli. Circularly knitted tubular structures reversibly contract in radial and axial directions, enabling autonomous climbing, liquid release, and micro pumping.
Xue Wan   +8 more
wiley   +1 more source

Research of the Characteristic of Hydro- viscous Clutch with Different Friction Materials

open access: yesJixie chuandong, 2016
The friction plate gap as a key parameter which affects the towing torque is got by analyzing friction state of the hydro- viscous clutch and building mathematical model of the towing torque which combines with the specific parameter of the hydro ...
Ma Ligang   +3 more
doaj  

Friction in metal-on-metal total disc arthroplasty: effect of ball radius [PDF]

open access: yes, 2012
Total Disc Arthroplasty (TDA) can be used to replace a degenerated intervertebral disc in the spine. There are different designs of prosthetic discs, but one of the most common is a ball-and-socket combination.
Hukins, DWL   +3 more
core   +1 more source

Numerical Estimation of Frictional Torques with Rate and State Friction

open access: yes, 2015
In this paper, numerical estimation of frictional torques is carried out of a rotary elastic disc on a hard and rough surface under different rotating conditions. A one dimensional spring- mass rotary system is numerically solved under the quasistatic condition with the rate and state dependent friction model.
Singh, Arun K., Singh, T. N.
openaire   +2 more sources

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

open access: yesAdvanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu   +18 more
wiley   +1 more source

Torsional Tribological Behavior and Torsional Friction Model of Polytetrafluoroethylene against 1045 Steel. [PDF]

open access: yesPLoS ONE, 2016
In this work, the plane-on-plane torsional fretting tribological behavior of polytetrafluoroethylene (PTFE) was studied. A model of a rigid, flat-ended punch acting on an elastic half-space was built according to the experimental conditions.
Shibo Wang, Chengchao Niu
doaj   +1 more source

Grey Prediction on Rolling Bearing Friction Torque

open access: yesMechanical Engineering Research, 2012
The rolling bearing friction torque is forecasted by means of the grey dynamic model GM (1, 1). Residual test and posteriori error test are conducted to verify the reliability of the results of prediction. The experiment shows that the method proposed has the high precision and satisfy the engineering demand.
Xintao Xia, Tao Ma
openaire   +2 more sources

3D Printing Strategies for Bioengineering Human Cornea

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights recent progress in 3D bioprinting strategies for engineering human corneas. Key aspects include the replication of corneal transparency, curvature, and biomechanical properties, alongside innovations in recent advancements in 3D printing methods, which benefit in overcoming current challenges.
Yunong Yuan   +4 more
wiley   +1 more source

Giving It a Twist: One‐Step Fabrication of Aligned Biomimetic Yarn Scaffolds via Rotational Melt Electrofibrillation

open access: yesAdvanced Healthcare Materials, EarlyView.
Due to its multifunctionality, replicating the fibrillar and supramolecular architecture of Collagen I is gaining increasing priority in regenerative medicine. Using rotational Melt Electrofibrillation, we present a powerful method to accurately mimic the ultrastructure of Collagen with polycaprolactone, enabling the one‐step fabrication of three ...
Zan Lamberger   +11 more
wiley   +1 more source

Experimental Study and Low Temperature Friction Characteristic of Angular Contact Ball Bearing

open access: yesJixie chuandong, 2018
In order to analyze the low temperature friction characteristics of angular contact ball bearings.Firstly,the change of low temperature structure of bearing is analyzed by finite element software,the changes of the low temperature structure,the change of
Qiu Shengdong
doaj  

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