designing of a pid controller is a very common method for industrial process control and due to its very simple and efficient function; it is used in a wide variety of industrial applications. pid controller to reduce the steady state error and dynamic response of the system is used. pid controller design is an inevitable problem in setting the coefficients need to try a lot of trial and error,...

Multiple attractors and their fractal basins of attraction can lead to the loss global stability integrity Micro Electro Mechanical Systems (MEMS). In this paper, multistability a class electrostatic bilateral capacitive micro-resonator is researched in detail. First, dynamical model established made dimensionless. Second, via perturbating method numerical description attraction, multiple perio...

-In this work, a vibrating search algorithm is applied to design a normal-incidence broadband visible antireflection (AR) coating on the flexible Polyethersulfone (PES) substrate, and then AR coats PES using ion-assisted deposition (IAD). The average visible spectral reflectivities of calculated and experimental AR performances are reduced to below 0.321 and 0.327%, respectively, revealing very...

BACKGROUND Ribavirin is an antiviral drug that can be administered by inhalation. Despite advancements in the oral delivery of this medication, there has been a renewed interested in delivering ribavirin via the pulmonary system. Although data are not conclusive that inhaled ribavirin improves outcomes, we set out to determine whether delivery by a newer generation nebulizer, the vibrating mesh...

This paper describes an analytical and experimental investigation of the property of modal disparity in a vibrating structure. For a given structure, the concept of modal disparity describes the structure’s ability to generate significant changes in the mode shapes by some type of on-the-fly structural modification. In the present study we consider a vibrating beam that experiences a controlled...

Ion Beam Aperture Array Lithography was applied to top-down fabrication of large dense (10(8)-10(9) particles/cm(2)) arrays of uniform micron-scale particles at rates hundreds of times faster than electron beam lithography. In this process, a large array of helium ion beamlets is formed when a stencil mask containing an array of circular openings is illuminated by a broad beam of energetic (5-8...