Results of experimental and theoretical study of a photosynthetic system presented with rather complicated temporal behaviour are shown. Experimental results are comparable with those obtained previously by using the electrical method, and thus provide a support to the applicability of the more convenient spectrophotometric method. A possible explanation of a multimode nature of the oscillation...

As their face ages, a significant number of individuals require elevation of the eyebrows to improve brow-ptosis and pseudo-ptosis of the upper eyelids. This may be for functional disability, i.e. when there is a reduction in visual fields, or for purely cosmetic reasons. Eyebrow elevation can be achieved by non-surgical or by direct surgical methods. There are advantages and disadvantages to t...

Based on the dynamics analysis about the tracked vehicle electro-hydraulic semi-active suspension model, the optimal damping ratio control method was given in the paper. According to the character of suspension control objects and the influence factors of the vehicle ride comfort performance, the distributed not real-time suspension control system project was given. In the paper, the hardware a...

This paper presents a new method for the semi-active control of the span system of linear guideways subjected to a travelling load. Two elastic beams are coupled by a set of controlled dampers. The relative velocity of the spans provides an opportunity for efficient control via semi-active suspension. The magnitude of the moving force is assumed to be constant by neglecting inertial forces. The...

Magnetic suspension systems are mechatronic systems and crucial in several engineering applications, such as the levitation of high-speed trains, frictionless bearings, and wind tunnels. Magnetic suspension systems are nonlinear and unstable systems; therefore, they are suitable educational benchmarks for testing various modeling and control methods. This paper presents the digital modeling and...

Micro6s are the sequel to the Micro5 series, newly projected rover prototypes. Micro6 is equipped with a suspension mechanism so called HEXUS, a six wheeled mobility system with actively controllable suspension. Thanks to the new link mechanism, HEXUS has not only good performance as well as PEGASUS, but also has great stability and fault tolerant feature. The paper describes the concept and sy...

In this paper, the modeling and control of reluctance-force-based magnetic suspension in cylindrical rotor, ring-shape air gap, bearingless motors are presented. The full suspension system dynamics, including both the destabilizing force due to the motor field and the active magnetic suspension control forces, are modeled, and a transfer function of the bearingless motor suspension plant is der...

three series of a polydispersed system of sulfadiazine and sulfamerazine mixture were prepared, and effect of three inorganic electrolytes on flocculation of this system was studied. we have found the appropriate flocculating agent and also its necessary concentration. results obtained have shown that there is a relation between flocculation and sedimentation volume, but the hard cake formed wh...

This paper describes a simulation design procedure aimed to achieve improved performance of the vehicle semi-active suspension. The issues related to the design of vehicle models with skyhook control are discussed. Three basic models with linear parameters are explained: quarter-, halfand full-car. The road profile is generated from a spatial power spectral density (PSD) to represent a typical ...

Traveling Waves in a Suspension Bridge System by Robert A. Ain, Jr. Dr. Zhonghai Ding, Examination Committee Chair Associate Professor of Mathematics University of Nevada, Las Vegas In this thesis, we study the traveling waves in a Lazer-McKenna suspension bridge system which is governed by two coupled nonlinear beam and wave equations. The Lazer-McKenna suspension bridge system describes the v...