In this study, the basics of optical system design are presented. It contains a series formulations ordered by subject areas or topics representing typical lens tasks and tasks. Different aspects covered, such as definition starting systems creation, evaluation, optimization lenses systems. The formulas most critical equations given in detail content study. also provides an overview basic mathe...

Introduction. In Kazakhstan in present time there is a large number of earthmoving works, which leads to an increase the demand for earthmoving-transport machines (ETM), particular bulldozers different types. various industries and construction projects, fleet foreign-made ETM operated constantly updated, including CIS countries (Russia, Belarus, Ukraine, etc.) type-sizes. So at sites, roads ra...

for all industrial processes, modelling, optimisation and control are the keys to enhance productivity and ensure product quality. in the current study, the optimization of process parameters for improving the conversion of isoeugenol to vanillin by psychrobacter sp. csw4 was investigated by means of taguchi approach and box-behnken statistical design under resting cell conditions. taguchi desi...

This paper presents a method for the analysis of arbitrary shape and composition posts in waveguide. The method segments the problem into regions that are characterized by their generalized admittance matrices. Both an analytical formulation and a boundary integral formulation based on homogeneous wave equation solutions are used in this characterization. Our method is especially fast and suita...

This paper provides a new approach for pricing and hedging popular highly pathdependent equity-linked contracts. We illustrate our technique with two examples: the locally-capped contracts (a popular design on the exchange-listed retail investment contracts on the American Stock Exchange) and the Cliquet option (extensively sold by insurance companies). Wilmott [17] describes these types of con...

In early stages of the design process, analytical models, results from numerical simulations or experimental data from prototypes are some of the major sources of knowledge available to the engineer. These qualitatively distinct sources thus serve as the major basis of all subsequent decision making in the engineering design process. Based on the knowledge of the physical dimensions of the desi...

abstract This paper presents a simple and robust method of designing the lossy-transmission-line interconnects in a network for multichip modules. This method uses wire-sizing entirely to meet the electrical damping criteria to solve the problems encountered in propagating high-speed signals through unterminated lossy transmission lines on the substrates of multichip modules (MCM). The optimal ...

Abstract — A new, simple large signal model for high power HBTs and BJTs suitable for CAD tools is proposed and experimentally evaluated. The major features of the model are that main model parameters are determined directly from measurements in typical operating conditions and that the model exhibits good convergence properties. The model was evaluated with extensive DC, S parameter, and power...