Results 91 to 100 of about 331,979 (290)

Performance of high-area-ratio annular dump diffuser using suction-stabilized-vortex flow control [PDF]

open access: yes
A short annular dump diffuser having a geometry conductive to formation of suction stabilized toroidal vortices in the region of abrupt area change was tested.
Juhasz, A. J., Smith, J. M.
core   +1 more source

Ultra‐High Friction and Adhesion in Hydrogel Layer Driven by Wet‐to‐Dry Transition Dynamics

open access: yesAdvanced Science, EarlyView.
This work reveals a critical wet‐to‐dry transition in polyacrylamide hydrogel layers that induces volumetric shrinkage, resulting in enhanced interfacial contact and dramatically increased friction and adhesion. Leveraging this transition enables strong, reversible gripping on diverse surfaces, offering new insights for hydrogel‐based gripping ...
Chenxu Liu   +11 more
wiley   +1 more source

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

open access: yesAdvanced Science, EarlyView.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao   +4 more
wiley   +1 more source

A contribution to the better understanding of swelling in soils and soft rocks

open access: yesGeologija, 2010
Swelling and shrinkage of sediments rich with clay belong to geologically conditioned risk factors. Economicloss as the consequence of volume changes in the geological catchment area of buildings and infrastructuralobjects is immense.
Ana Petkovšek   +2 more
doaj  

Destabilizing Taylor-Couette flow with suction

open access: yes, 2010
We consider the effect of radial fluid injection and suction on Taylor-Couette flow. Injection at the outer cylinder and suction at the inner cylinder generally results in a linearly unstable steady spiralling flow, even for cylindrical shears that are ...
Basile Gallet   +6 more
core   +1 more source

A Time‐Programmed Bilayer Wound Dressing for Dynamic Microenvironment Modulation and Full‐Thickness Regeneration in Diabetic Wounds

open access: yesAdvanced Science, EarlyView.
The Polyphenol+PDGF‐BB scaffold fabrication (Panel A) and its dual wound healing effects (Panel B: anti‐inflammation and accelerated tissue remodeling). ABSTRACT Chronic diabetic wounds suffer from dysfunctional repair programs due to accumulated advanced glycation end products (AGEs) and persistent inflammation in hyperglycemic microenvironments ...
Lei Yi   +7 more
wiley   +1 more source

Effect of wall suction on performance of a short annular diffuser at inlet Mach numbers up to 0.5 [PDF]

open access: yes
A short annular diffuser equipped with wall bleed (suction)capability was evaluated at inlet Mach numbers of 0.186 to 0.5. The diffuser had an area ratio of 4.0 and a length-to-inlet height ratio of 1.6. Test results show that the exit velocity profiles,
Juhasz, A. J.
core   +1 more source

A Linearly Deformable Pneumatic Scalable Microgripper for Universal Mid‐Air Micromanipulation

open access: yesAdvanced Science, EarlyView.
This work presents a fully 3D printed soft microgripper capable of active adhesion control through a pneumatic system. Its modular design can reach a high adhesion switching ratio of 373 and free release of micro‐objects at 100 μm$\umu \rm {m}$ dimension.
Jiawei Yi   +3 more
wiley   +1 more source

Application of an Automatic Suction Device to a Patient with A Tracheostomy Tube in the General Ward: A Case Report [PDF]

open access: yesJournal of Acute Care Surgery
The A-1000 (Elmeca, Co. Ltd., Seoul, Korea) electrical automatic airway suction device, was designed to operate as a customizable repeated closed suction device. It can be used for patients with intubation or tracheostomy tubes.
Sehyeon Yu, Hanyoung Lee, Jae-Myeong Lee
doaj   +1 more source

Control of Cavity-Induced Drag Using Steady Jets [PDF]

open access: yes, 2015
Separated shear layer oscillations in open cavities can induce drag, noise and vibration. This issue has many aerospace applications such as Landing gears and control surfaces [1].
Haddabi, N. Al   +3 more
core  

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