This paper is focused on the creation of an efficient electromagnetic model of MEMS switches which operates at microwave frequencies. The switches are first characterized using a full wave analysis based on a finite element method to extract the S-parameters of the switches for different geometrical dimensions. From the S-parameter database, a scalable lumped circuit model is extracted to allow...

A hydraulic engine mount (HEM) is an advanced tuned mass damper (TMD) system used to isolate the noise and vibration from chassis. This paper aims design a semiactive HEM based on TMD model, which only tunes damping without affecting other lumped parameters of system. Firstly, dynamic equations modeled as are derived linear parameter model (LPM). Each analyzed identify relevant that affect damp...

Computer models of the musculoskeletal system frequently represent the force-length behavior of muscle with a lumped-parameter model. Lumped-parameter models use simple geometric shapes to characterize the arrangement of muscle fibers and tendon; this may inaccurately represent changes in fiber length and the resulting force-length behavior, especially for muscles with complex architecture. The...

The paper analyzes the government budget cost of credit guarantees and subsidies. The analysis is done both in a general qualitative manner and quantitatively for the case of Czech Supporting and Guarantee Agricultural and Forestry Fund (SGAFF). In the quantitative part of the paper we show that the portfolio of the SGAFF has a sufficient value to cover expected costs of credit guarantees and s...

We study the optimal anticipated policy in a pure-currency economy with flexible prices and a nondegenerate distribution of money holdings. The economy features a business cycle and lump-sum monetary injections have distributional effects that depend on the state of the cycle. We parsimoniously characterize the dynamics of the economy and study the optimal regulation of the money supply as a fu...

We study a business cycle model in which a benevolent fiscal authority must determine the optimal provision of government services, while lacking credibility, lump-sum taxes, and the ability to bond finance deficits. Households and the fiscal authority have risk sensitive preferences. We find that outcomes are affected importantly by the household’s risk sensitivity, but not by the fiscal autho...

Over the past decade or so, many private and publicly held companies have moved away from providing employees with company-funded pensions upon retirement to a retirement system that requires both employee and company contributions to fund an individual’s retirement. These so-called 401(k) retirement plans usually require the employee to choose among different investment vehicles, including mut...

Co-location is compatible with the doctrine of microphysical supervenience. Microphysical supervenience involves intrinsic qualitative properties that supervene on microphysical structures. Two different objects, such as Socrates and the lump of tissue of which he is constituted, can be co-located objects that supervene on different sets of properties. Some of the properties are shared, but oth...

Fluidized bed techniques are employed in coal combustion power plants, because they allow for the use of low-quality fuel and result in low pollutant emissions. The most important dynamical difference between fluidized beds and normal combustion chambers, is that the former are characterized by a significant loading of carbon, usually absent in conventional plants. Fluidized beds are remarkably...

Lappeenranta University of Technology Faculty of Technology Master’s Degree Programme in Technomathematics and Technical Physics Tatiana Pavlenko Tunable lumped-element bandpass filters for Cognitive Radio application Master’s thesis 2013 56 pages, 48 figures, 2 tables Examiners: Professor Erkki Lähderanta D. Sc. (Tech.) Tauno Vähä-Heikkilä