The purpose of this investigation was to create a flatfoot model and reconstruct the deformity with a novel static medial ligamentous complex (MLC) and to evaluate its ability to correct talar head subluxation and the radiographic flatfoot deformity. Four pairs of matched cadaveric specimens were sectioned to create a severe flatfoot model. Cyclic preconditioning and axial loading was applied t...

This paper presents the modeling of a four rotor vertical take-off and landing (VTOL) unmanned air vehicle known as the quad rotor aircraft. The paper presents a new model design method for the flight control of an autonomous quad rotor. The paper describes the controller architecture for the quad rotor as well. The dynamic model of the quad-rotor, which is an under actuated aircraft with fixed...

This paper reports on the synthesis of different flight controllers for an X-Cell mini-helicopter. They are developed on the basis of the most realistic mathematical model currently available. Two hybrid intelligent control systems, combining computational intelligence methodologies with other control techniques, are investigated. For both systems, Mamdanitype fuzzy controllers determine the se...

longevity of osseointegrated implants are intensely influenced by biomechanical factors. control of these factors prevents mechanical complications, which include fracture of screws, components, or materials veneering the framework. in this study, the impact of length and threads pitch of dental implants on the stress distribution and maximum von mises stress in implant-abutment complex and jaw...

The paper emphasizes the propagation behavior of dielectric optical waveguides with elliptical cross-section with the introduction of conducting helical windings at the core-clad interface. Helix pitch angle plays the determining role to control the wave propagation. For the sake of simplicity, two extreme values of pitch angle, namely, 0 and 90, are taken into account, and studies are made...

Elevators are surfaces of flight control, typically at the rear an aircraft to control pitch plane, angle attack and wing lift. The most critical actuation device is longitudinal its failures will result in a catastrophic crash. This paper proposes Highly Redundant Fault Tolerant Control (HRFTC) policy for accommodate faults sensors actuators. Modified Triple Modular Redundancy (MTMR) has been ...

This research aims to develop a visual tracking system for UAV which guides drone track mobile robot and accurately land on it when stops moving. Two LEDs with different colors were installed the bottom of drone. The can detect heading angle distance between robot. flight velocity in pitch roll direction modified by PID control, so that flying speed are more accurate, quickly. tuning parameters...

this paper proposes a new method of gain scheduling control design for a nonlinear system which is described as linear parameter varying form. a performance measure based on linear matrix inequality is introduced. to consider stability and performance measures in design process, the h∞ loop-shaping method is used to design the local controllers, which can be described as state feedback observer...