Results 131 to 140 of about 2,224,611 (335)

High speed shutter [PDF]

open access: yes, 1974
A shutter element is described which is formed by a loop of an electrically conductive ribbon disposed adjacent to the end of a passageway to be shuttered. The shuttered end of the passageway is cut at an acute angle.
Mcclenahan, J. O.
core   +1 more source

How Does a Delicate Insect Wing Resist Damage? Chitin Orientation Is Adapted to the Mechanical Demands at the Nanoscale

open access: yesAdvanced Materials, EarlyView.
Nanoscale chitin fiber orientations in the insect wing play a critical role in adapting to complex mechanical demands. These findings reveal two distinct and functionally adaptive chitin orientation patterns in the membranes that vary regionally, optimizing mechanical resilience and deformation control.
Chuchu Li   +5 more
wiley   +1 more source

The disturbance leg-lift response (DLR): an undescribed behavior in bumble bees

open access: gold, 2021
Christopher A. Varnon   +3 more
openalex   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Diagnostic Challenge of Bilateral Martorell Hypertensive Ischaemic Leg Ulcers

open access: gold, 2021
L Kraus   +9 more
openalex   +1 more source

Magnetic Milli‐Spinner for Robotic Endovascular Surgery

open access: yesAdvanced Materials, EarlyView.
The magnetic milli‐spinner, with its unique structural design, achieves rapid and stable navigation through complex vasculature at speeds up to 23 cm·s−1. It further enables multifunctional treatment, including localized suction and shear for efficient clot removal, targeted drug delivery, and in situ embolization for aneurysm therapy, establishing it ...
Shuai Wu   +7 more
wiley   +1 more source

Regime alimentar para ganho compensatório de ovinos em confinamento: composição regional e tecidual da carcaça Diet for compensatory gain of feedlot lambs: commercial composition of carcass cuts and tissues

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
Determinou-se o efeito do regime alimentar para ganho compensatório sobre a composição regional e tecidual da carcaça de cordeiros terminados em confinamento.
G.H. Nóbrega   +6 more
doaj  

Leg Muscle Volume, Intramuscular Fat and Force Generation: Insights From a Computer‐Vision Model and Fat‐Water MRI

open access: yesJournal of Cachexia, Sarcopenia and Muscle
Background Maintaining skeletal muscle health (i.e., muscle size and quality) is crucial for preserving mobility. Decreases in lower limb muscle volume and increased intramuscular fat (IMF) are common findings in people with impaired mobility.
Andrew C. Smith   +13 more
doaj   +1 more source

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