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The paper defines the concept of the generalised specific heat of a substance for a fixed type of transformation. Next, it defines the generalised specific heat of a substance at constant volume and pressure. Finally, it defines the specific heat of a substance at constant generalised force and the specific heat of a substance at the constant generalised coordinate.
High-quality machine translation of human languages has for a long time been an unattainable dream for many computer scientists involved in this fascinating and interdisciplinary field of the application of computers. The developed quite recently example-based machine translation technique seems to be a serious alternative to the existing automatic translation techniques. In the paper the usage of...
In the paper we formulate the sufficient condition which must satisfy an irreducible acyclic matrix A to be alpha-scalar diagonally stable. Moreover we consider the existence of positive definite diagonal matrix C and positive definite alpha-scalar matrix D such that DA+ATD=C. These conditions are the generalizations of several theorems which are the necessary and sufficient condition which must satisfy...
The aim of the presented paper is to introduce and compare three novel mechanisms: Simple Variance Adaptation (SVA), Forced Direction of Mutation (FDM) and Deterioration of the Objective Function (DOF), which accelerate the global optimization ability of evolutionary algorithms. The evolutionary algorithm considered here, called Evolutionary Search with Soft Selection (ESSS), is based on the simplest...
The work presents an ASIC (Application Specific Integrated Circuit) CMOS cell for IDD current monitoring in VLSI circuits. The cell is to be used in estimation of dissipated power in high density power microstructures. It can be also useful in fault diagnosis in integrated VLSI circuits. The cell is intended to be placed along with a microstructure requiring cooling on the same piece of silicon and...
The paper presents a generalised local equation of enthalpy for an open system, which has been transformed into a local equation of enthalpy for an open system. It has been assumed that the flow of an agent through a machine is fixed and that elementary heat created by friction in the machines interior equals an elementary work of friction and an elementary increase of technical work is equal to an...
Wavelet representation of signals and images is very useful for compression purposes. To obtain a wavelet representation by splitting a digital signal into two subsampled sygnals in a two-channel filter bank, the filters must satisfy perfect reconstruction conditions. This paper presents a theorem that formulates perfect reconstruction conditions for two-channel filter bank and a complete proof of...
A novel approach to design of minimal order functional observers for singular linear systems is proposed. A procedure for computation of matrices of the minimal order functional observers is presented and illustrated by numerical example.
Brauner and Crama [4] conjectured that the only n-product, n>2, standard instance of the maximum deviation just-in-time sequencing problem with maximum deviation less than 1/2 is made up of the first n nonnegative powers of 2. We prove that this conjecture holds true. We also exploit this result to prove special cases of the well known Fraenkel's conjecture.
For the survival of the human race we need to diminish the world pollution level and the use of our natural nonrenewable resources. Starting from these survival conditions, the paper presents an energy model of a semi self-sustained social subsystem with production and two levels of recycling. The first level is integrated into the whole system and starts automatically with the production and use,...
Starting with the Cauchy integral representation of a multidimensional analytic function it was shown that complex signals with single-orthant sprectra are boundary distributions of multidimensional analytic functions.
Plane, steady, creeping flow around an arbitrary cylinder situated in vicinity of a flat plate is considered, the flow being generated by translation of this plate along itself with constant speed, perpendicular to generatrices. The stream function of the flow satisfies the biharmonic equation, so that all properties of the flow - such as velocity and pressure fields as well as fields of other stress...
The two CMOS four-quadrant analog multipliers that can operate from a supply voltage of 3.3V are presented. The proposed circuit technique has been developed using MOS transistors working both in saturation and nonsaturation regions. Simulation results have shown that the introduced circuit based on MOS devices operating in the linear region has the total harmonic distortion (THD) less than 0.75%...
In this paper stabilisation problem of LC ladder network is established. Nonlinear and linear dynamic feedback without velocity feedback is considered. The global asymptotic stability of the closed-loop system is proved by LaSalle's theorem. Numerical calculations were made with the aid of Matlab/Simulink program.
The paper deals with a model of an education system. The model describes cooperation of university with students in the presence of risk. A corresponding joint venture problem is formulated. Three cooperative solution concepts (Nash, Raiffa and Egalitarian) to the problem are analysed. The analysis is made from axiomatic point of view, taking into account properties of the solutions concepts. Next...
The paper deals with the methodology of knowledge management which is aimed at the acceleration of economic growth. The methodology is based on the subjective utility concept, introduced by Kulikowski [1998], which enables one to estimate the present value benefits resulting from the technological change and the cost of change. It enables also to derive, in an explicite form, the optimum strategies...
We consider the following problem: is there a rational or fair price for the reports made by analysts, experts, investor advisers concerning the rate of return (RR) of investments? We define the notion of the value of information included in the family of probability distributions of the RR. Next, we illustrate this notion for a linear-quadratic utility function.
The paper extends the risk management theory based on the two factors utility concept introduced by Kulikowski [5],[6]. The extension concerns, in particular, the rate of return for financial as well as the human capital. The simple success - failure model is used for construction of the utility function. The utility function depends on the subjective probability, which is an explicite function of...
Two different types of firm's activity are considered as portfolio selection problems. First activity is an ordinary one. The second is innovative and extra-ordinary. To be profitable it must have enough of an "intellectual capital" (IC). Optimization problems for the firm are solved and the notion of IC is defind. Two different methodologies are discussed.
A fuzzy preference relation is a popular model to represent both individual and group preferences. However, what is often sought is a subset of alternatives that is an ultimate solution of a decision problem. In order to arrive at such a final solution individual and/or group choice rules may be employed. There is a wealth of such rules devised in the context of the classiccal, crisp preference relations...
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