We propose the nano-scale displacement sensor with high resolution for weak-force systems could be realized based on vertical stacked two-dimensional (2D) atomic corrugated layer materials bound through Van der Waals (VdW) interaction. Using first-principles calculations, we found the electronic structure of bi-layer blue phosphorus (BLBP) varies appreciably to both the lateral and vertical int...

PURPOSE The rectus extraocular muscles pass through fibromuscular connective tissue pulleys that stabilize muscle paths and control the direction of muscle pull. The authors investigated whether abnormal forces associated with superior oblique palsy can cause displacement of pulleys and muscle paths. METHODS Coronal magnetic resonance imaging (MRI) showing significantly reduced superior obliq...

Vertical displacement acceleration and the pitch angle record produce phenomenon of beat vibration when testing a 200 m electro-dynamic suspension (EDS) magnetic levitation (maglev) test vehicle with high-temperature superconducting (HTS) at CRRC Changchun Railway Vehicles Co., Ltd., where is clamped in planar motion. First, to examine this phenomenon, paper establishes dynamic equations three ...

The stiffness of activated muscles may stabilize a loaded joint by preventing perturbations from causing large displacements and injuring the joint. Here the elbow muscle recruitment patterns were compared with the forearm loaded vertically (a potentially unstable inverted pendulum configuration) and with horizontal loading. Eighteen healthy subjects were studied with the forearm vertical and s...

This study conducted an experimental and numerical investigation to examine the pullout behavior of a single pile in sand soil with specific density. The testing model was constructed simulate real-world geotechnical applications where is subjected varying forces. setup involved measuring vertical displacement corresponding different values results were then compared obtained from PLAXIS 3D HS-...

We consider uniformly rotating incompressible Euler and NavierStokes equations. We study the suppression of vertical gradients of Lagrangian displacement (”vertical” refers to the direction of the rotation axis). We employ a formalism that relates the total vorticity to the gradient of the back-to-labels map (the inverse Lagrangian map, for inviscid flows, a diffusive analogue for viscous flows...

OBJECTIVE To explore the mechanisms underlying the hypertropia associated with unilateral coronal synostosis. METHODS In 13 patients with unilateral coronal synostosis, we measured gaze-dependent binocular alignment before and after strabismus surgery, assessed the superior rectus muscle (SRM) pulley using computed tomography, and simulated posterior displacement of the trochlea and superolat...

A force platform can be an excellent teaching aid in undergraduate physics classes and laboratories. Recently, Cross showed how to increase student interest and understanding of elementary mechanics by using a force platform to study everyday human movement such as walking, running, and jumping. My experiences with using a force platform in undergraduate classes have also been highly favorable....