Results 81 to 90 of about 78,265 (290)

Research of Influence of Bearing Preload on Dynamic Characteristic of High-speed Heavy-load Planetary Gear Transmission

open access: yesJixie chuandong, 2019
In order to analyze the influence of bearing preload on the dynamic characteristics of high-speed and heavy-load planetary gear transmission system, a dynamics model of high-speed heavy-load planetary gear transmission is established.
Xiangyang Xu, Song Fu, Xun Han, Xing Ai
doaj  

Hydrogel‐Based 3D‐Printable Stretchable Pressure Sensor

open access: yesAdvanced Materials Technologies, EarlyView.
We present a carbon‐black‐functionalized double‐network granular hydrogel (DNGH) pressure sensor capable of detecting pressures from 200 Pa, equivalent to a light finger touch, up to 500 kPa. The sensor exhibits signal drifts below 3.5% after 800 cycles and response times around 80 ms. Leveraging this broad sensing range, we 3D print this material into
Tianyu Yuan   +4 more
wiley   +1 more source

Can axial loading restore in vivo disc geometry, opening pressure, and T2 relaxation time?

open access: yesJOR Spine
Background Cadaveric intervertebral discs are often studied for a variety of research questions, and outcomes are interpreted in the in vivo context. Unfortunately, the cadaveric disc does not inherently represent the LIVE condition, such that the disc ...
Harrah R. Newman   +7 more
doaj   +1 more source

Parametric Optimization of Linear Ball Bearing with Four-Point Connection in Steer-by-Wire Steering Column by Means of Genetic Algorithm

open access: yesApplied Sciences
This paper presents the process of the optimization of linear ball bearings with four-point connection using a genetic algorithm and the finite element method.
Arkadiusz Załęski   +1 more
doaj   +1 more source

Gold Nanorods in Cardiac Millitissues: Assessing Mechanical and Contractile Dynamics in a Living Engineering Myocardium Model

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents a novel platform for assessing the active mechanical behavior of living cardiac microbundles through localized nanoindentation, integrated with temperature regulation and dual‐camera imaging systems. The developed system enables quantitative evaluation of dynamic micromechanics in engineered cardiac tissues in vitro, offering ...
Lihua Lou   +4 more
wiley   +1 more source

Experiments in fixturing mechanics [PDF]

open access: yes, 2003
This paper describes an experimental fixturing system wherein fixel reaction forces, workpiece loading, and workpiece displacements are measured during simulated fixturing operations.
Burdick, Joel W.   +2 more
core  

Design and analysis of a novel long-distance double tendon-sheath transmission device for breast intervention robots under MRI field [PDF]

open access: yes, 2020
Cancer represents a major threat to human health. Magnetic resonance imaging (MRI) provides superior performance to other imaging-based examination methods in the detection of tumors and offers distinct advantages in biopsy and seed implantation. However,
Du, Haiyan   +4 more
core   +1 more source

Management of Mechanical Ventilation in Decompensated Heart Failure. [PDF]

open access: yes, 2016
Mechanical ventilation (MV) is a life-saving intervention for respiratory failure, including decompensated congestive heart failure. MV can reduce ventricular preload and afterload, decrease extra-vascular lung water, and decrease the work of breathing ...
Adams, Jason Y   +4 more
core   +4 more sources

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

open access: yesAdvanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard   +7 more
wiley   +1 more source

Evaluation of a double Gimbal IPACS design [PDF]

open access: yes
The suitability of various integrated power/attitude control systems (IPACS) rotor materials was analyzed. Three materials were investigated: (1) 6A1-4V-Titanium (the current IPACS rotor material); (2) B120 VCA Titanium; and (3) Custom 455 stainless ...
Burke, P. R., Coronato, P. A.
core   +1 more source

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