The dynamic response of a structure depends on both the structure and the applied load. A pulse approximation method proposed by Youngdahl has been proved to be applicable to stable structures and it has been adopted to deal with arbitrary loading pulse in analyses. However, for the structures possessing unstable loadedisplacement properties, the applicability of pulse approximation method need...

BACKGROUND AND PURPOSE Introduction of an instrument into the working channel of ureteroscopes adversely affects flow and deflection. We evaluated the alterations in ureteroscope channel flow and deflection caused by available Nitinol(R) baskets. MATERIALS AND METHODS We compared the effects of 11 Nitinol baskets on irrigation flow and deflection of three flexible ureteroscopes (Olympus P3, A...

Considering a charged black hole (BH) surrounded by perfect fluid radiation field (PFRF) in Rastall gravity, we investigate this BH shadow and photon sphere on different spherical accretions backgrounds. The effect of the PFRF parameter/BH charge critical impact parameter is studied investigating light deflection near BH. luminosity these shadows obtained, respectively. It found that with infal...

We obtain a static spherically symmetric wormhole solution due to the vacuum expectation value (vev) of Kalb–Ramond field. The is background tensor field which produces local Lorentz symmetry breaking (LSB) spacetime. Considering non-minimal coupling between and Ricci tensor, we found an exact traversable sustained by matter sources with negative isotropic pressure. source satisfies energy cond...

Abstract Antagonistically actuated variable stiffness actuators (VSAs) take inspiration from biological muscle structures to control both the and positioning of a joint. This paper presents design an elastic mechanism that utilizes cable running through set three pulleys displace linear spring, yielding quadratic spring behavior in each actuator. A joint antagonistically by two such mechanisms ...

In this paper, we present a label-based approach for implementing deflection in a photonic packet network, and we introduce an algorithm for determining deflection options in a manner which eliminates looping. A general analytical model is developed to evaluate packet loss probabilities in networks with deflection. The analysis may be applied to a wide class of deflection schemes and may be app...

Thin-walled workpieces, such as aero-engine blisks and casings, are usually made of hard-to-cut materials. The wall thickness is very small and it is easy to deflect during milling process under dynamic cutting forces, leading to inaccurate workpiece dimensions and poor surface integrity. To understand the workpiece deflection behavior in a machining process, a new real-time nonintrusive method...

A promising option to raising busty interchange in system communication could be Optical Burst Switched (OBS) networks among scalable and support routing effective. The routing schemes with disputation resolution got much interest, because the OBS network is buffer less in character. Because the deflection steering can use limited optical buffering or actually no buffering thus the choice or de...

Snap-through buckling behaviour of rigid vinyl polyethylene shallow spherical shells, undergoing large displacements, subjected to static ring loads is investigated by using finite difference and the Newton-Raphson Method. The load-deflection diagrams corresponding various values thickness, depth diameter shell with simply supported clamped edges are sketched compared. accuracy used algorithm p...

AIM To evaluate the magnetic properties of the Ex-PRESS stainless steel glaucoma drainage device during MRI. DESIGN Experimental study. METHODS The Ex-PRESS glaucoma drainage device (316L stainless steel) was examined for magnetic field interactions under standard 1.5, 3.0, and 4.7 T MRI scanning protocols. Testing included measurements of translational and rotational motion of the device i...