Results 51 to 60 of about 246,272 (261)

A Variable Parameter Ambient Vibration Control Method Based on Quasi-Zero Stiffness in Robotic Drilling Systems

Machines, 2021
Vibrations in the aircraft assembly building will affect the precision of the robotic drilling system. A variable stiffness and damping semiactive vibration control mechanism with quasi-zero stiffness characteristics is developed.
Laixi Zhang, Chenming Zhao, Feng Qian, Jaspreet Singh Dhupia, Mingliang Wu   +4 more
doaj   +1 more source

Human-like Walking with Compliant Legs [PDF]

, 2011
This work presents a novel approach to robotic bipedal walking. Based on the bipedal spring-mass model, which is known to closely describe human-like walking behavior, a robot has been designed that approaches the ideal model as closely as possible.
Carloni, Raffaella, Geus, Wouter de, Stramigioli, Stefano, Visser, Ludo C.   +3 more
core   +2 more sources

Statics and dynamics of domain patterns in hexagonal-orthorhombic ferroelastics

, 2000
We study the statics and the dynamics of domain patterns in proper hexagonal-orthorhombic ferroelastics; these patterns are of particular interest because they provide a rare physical realization of disclinations in crystals.
A. C. E. Reid, A. C. E. Reid, A. E. Jacobs, A. E. Jacobs, A. E. Jacobs, A. E. Jacobs, A. Onuki, A. Putnis, B. Yangui, C. Boulesteix, C. Manolikas, C. Manolikas, E. K. H. Salje, G. R. Barsch, J. F. Blackburn, J. F. Blackburn, J. Sapriel, J. Vicens, K. Aizu, K. Fuchizaki, L. D. Landau, R. Sinclair, R. V. Kohn, S. H. Curnoe, S. H. Curnoe, S. R. Shenoy, V. Venkatesh, W. C. Kerr, W. F. Müller, Y. H. Wen, Y. H. Wen, Y. Kitano, Y. Kitano   +32 more
core   +1 more source

Age‐Related Characteristics of SYT1‐Associated Neurodevelopmental Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We describe the clinical manifestations and developmental abilities of individuals with SYT1‐associated neurodevelopmental disorder (Baker‐Gordon syndrome) from infancy to adulthood. We further describe the neuroradiological and electrophysiological characteristics of the condition at different ages, and explore the associations ...
Sam G. Norwitz, Josefine Eck, Joel S. Winston, Kate Baker   +3 more
wiley   +1 more source

Variable stiffness sandwich panels using electrostatic interlocking core [PDF]

, 2016
Structural topology has a large impact on the flexural stiffness of a beam structure. Reversible attachment between discrete substructures allows for control of shear stress transfer between structural elements, thus stiffness modulation.
Bond, Ian, Heath, Callum, Potter, Kevin
core   +2 more sources

A 73‐Year‐Old Man With Several Years of Difficulty Climbing Stairs and Frequent Tripping

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT A 73‐year‐old man presented with progressive weakness and atrophy predominantly affecting the distal finger flexors and quadriceps muscles. Electrophysiological studies demonstrated mixed myogenic and neurogenic features. Muscle MRI showed inflammatory changes, and muscle biopsy revealed granulomatous myositis with histologic features ...
Mehmet Can Sari, Arens Taga, Sonya Ulrike Steele, Ahmet Hoke   +3 more
wiley   +1 more source

Ketogenic Diet as an Epigenetic Therapy in SETD1B‐Related Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Histone lysine methyltransferases such as SETD1B regulate chromatin structure and gene transcription. Ketone bodies, including butyrate, act as histone deacetylase inhibitors. We report a 4‐year‐old boy with SETD1B‐related absence epilepsy, refractory to conventional medications, who achieved sustained > 90% seizure reduction on the Modified ...
Erica Tsang, Brian S. Gloss, Jessica P. Hayes, Andrew J. A. Holland, Manoj P. Menezes, Joceline A. Branson, Shekeeb S. Mohammad, Jingya J. Yan, Shrujna Patel, Velda X. Han, Russell C. Dale   +10 more
wiley   +1 more source

A pilot study of a novel variable-stiffness stylet for efficient colonoscope insertion with ex-vivo colon model

Journal of the Anus, Rectum and Colon, 2019
Objectives: The variable-stiffness colonoscope is reportedly useful for making colonoscope insertion easier. However, this function is not associated with all colonoscopes.
Daisuke Kikuchi, Ryusuke Kimura, Kosuke Nomura, Masami Tanaka, Yorinari Ochiai, Toshiro Iizuka, Shu Hoteya   +6 more
doaj   +1 more source

Substrate stiffness and VE-cadherin mechano-transduction coordinate to regulate endothelial monolayer integrity. [PDF]

, 2017
The vascular endothelium is subject to diverse mechanical cues that regulate vascular endothelial barrier function. In addition to rigidity sensing through integrin adhesions, mechanical perturbations such as changes in fluid shear stress can also ...
Andresen Eguiluz, Roberto C, Kaylan, Kerim B, Leckband, Deborah E, Underhill, Gregory H   +3 more
core   +1 more source

[18F]Fluorodeprenyl‐D2 PET as a Tool to Monitor Disease Activity in GAD65‐Ab Autoimmune Encephalitis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate [18F]fluorodeprenyl‐D2 ([18F]F‐DED) positron‐emission tomography (PET) imaging as a biomarker of disease activity in autoimmune encephalitis (AIE) associated with glutamic acid decarboxylase 65 (GAD65) antibodies. Methods [18F]F‐DED PET was performed in 25 GAD65‐AIE patients and 8 controls using dynamic (0–60 min) and ...
Julia S. Dorneich, Jonathan A. Gernert, Hanna Zimmermann, Lisa Tagnin, Marianthi Zeinaki, Laura Sanzo, Letizia Vogler, Elisabeth Kaufmann, Justina Dargvainiene, Frank Leypoldt, Gérard N. Bischof, Robert Perneczky, Boris‐Stephan Rauchmann, Simon Lindner, Günter U. Höglinger, Rudolf A. Werner, Martin Kerschensteiner, Tania Kümpfel, Matthias Brendel, Franziska S. Thaler   +19 more
wiley   +1 more source