Results 11 to 20 of about 1,105,625 (354)
On the Stiffness of Gold at the Nanoscale [PDF]
ACS Nano, 2021 The density and compressibility of nanoscale gold (both nanospheres and nanorods) and microscale gold (bulk) were simultaneously studied by X-ray diffraction with synchrotron radiation up to 30 GPa. Colloidal stability (aggregation state and nanoparticle shape and size) in both hydrostatic and nonhydrostatic regions was monitored by small-angle X-ray ...
Martín-Sánchez, Camino +8 more
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Physical Review E, 2007 We report on the geometry and mechanics of knotted stiff strings. We discuss both closed and open knots. Our two main results are: (i) Their equilibrium energy as well as the equilibrium tension for open knots depend on the type of knot as the square of the bridge number; (ii) Braid localization is found to be a general feature of stiff strings ...
Gallotti, R., Pierre-Louis, O.
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Journal of Hand and Microsurgery, 2016 Background Finger stiffness varies substantially in patients with hand and upper extremity illness and can be notably more than expected for a given pathophysiology. In prior studies, pain intensity and magnitude of disability consistently correlate with coping strategies such as catastrophic thinking and kinesiophobia, which can be characterized as ...
David Ring +2 more
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Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2013 Zero-stiffness structures have the remarkable ability to undergo large elastic deformations without requiring external work. Several equivalent descriptions exist, such as (i) continuous equilibrium, (ii) constant potential energy, (iii) neutral stability and (iv) zero stiffness.
Schenk, Mark, Guest, Simon D
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Simultaneously encoding movement and sEMG-based stiffness for robotic skill learning [PDF]
, 2021 Transferring human stiffness regulation strategies to robots enables them to effectively and efficiently acquire adaptive impedance control policies to deal with uncertainties during the accomplishment of physical contact tasks in an unstructured ...
Cheng, Hong +4 more
core +1 more source
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley +1 more source
Vertical stiffness asymmetries during drop jumping are related to ankle stiffness asymmetries [PDF]
, 2016 Asymmetry in vertical stiffness has been associated with increased injury incidence and impaired performance. The determinants of vertical stiffness asymmetry have not been previously investigated.
Alexander +44 more
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Frontiers in Bioengineering and Biotechnology, 2020 Tendon mechanical properties respond to altered load in adults, but how load history during growth affects adult tendon properties remains unclear. To address this question, we adopted an avian model in which we altered the mechanical load environment ...
Kavya Katugam +13 more
doaj +1 more source
Evaluation of pressure-stiffness coupling in brush seals [PDF]
, 2010 Brush seals are comprised of fine diameter fibers densely packed between retaining and backing plates. To achieve seal compliance bristles are arranged to contact rotor with some lay angle.
Aksit, Mahmut Faruk +2 more
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Age Dependent Changes in Corneal Epithelial Cell Signaling
Frontiers in Cell and Developmental Biology, 2022 The cornea is exposed daily to a number of mechanical stresses including shear stress from tear film and blinking. Over time, these stressors can lead to changes in the extracellular matrix that alter corneal stiffness, cell-substrate structures, and the
Kristen L. Segars +6 more
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