Young modulus and toughness (KIC) of bulk solar grade silicon (SoG-Si) obtained by directional solidification metallurgical were determined. The was measured the technique impulse excitation vibration KIC determined using indentation method. Measurement values agree well with those available in literature. method proved to be a reliable, relatively simple, inexpensive, fast experimental measure...

This paper proposes a method attaching amplitude of ultrasound echo on reflecting points. A new omni-directional sonar, which we developed, can measure accurate distance and direction of the reflecting points, and it is possible to measure amplitude of the echo which corresponds to the reflecting points. We propose a method to add information from the amplitude of the echo on the reflecting poi...

We present a technique for coarsely extracting the regions of natural color images which contain directional detail, e.g., edges, texture, etc., which we then use for image database indexing. As a measure of color activity, we use a perceptually modified distance measure based on the sum-of-angles criterion. We then apply histogram thresholding techniques to separate the image into smooth color...

Consider the cellular automata (CA) of Z 2-action Φ on the space of all doubly infinite sequences with values in a finite set Zr, r ≥ 2 determined by cellular automata T F [−k,k] with an additive automaton rule k i=−k a i x n+i (modr). It is investigated the concept of the measure theoretic directional entropy per unit of length in the direction ω 0. It is shown that hµ(T u F [−k,k]) = uhµ(T F ...

We study the reconstruction of continuous chaotic attractors from noisy time-series. A method of delays and principal component eigenbasis defined by singular vectors is used for state vectors reconstruction. We introduce a simple measure of trajectory vectors directional distribution for chosen principal component subspace, based on nonlinear transformation of principal component matrix. The v...

Through globalization, the increased integration in financial markets has made relationship between exchange rate and stocks important. The study aims to model volatility using daily data for period 04.01.2010-15.10.2020 investigate causality sector returns return volatility. In order of series, GARCH was used reveal possible asymmetry feature series. As a result applications, (2,2) determined ...

To examine whether the directionality index of neural information flow (NIF) over specific oscillatory bands is useful in measuring synaptic plasticity, we employed the IM approach to determine the direction of NIF between the cortex and thalamus in normal and stressed animals. The experiment was performed by inducing long-term potentiation (LTP) of the thalamocortical pathway after recording l...

An acceptable noise level (ANL) procedure for measuring hearing aid directional benefit was compared with masked speech reception threshold (SRT) and front-to-back ratio (FBR) procedures. ANL is the difference between the most comfortable listening level and the maximum accepted background noise level while listening to speech. Forty adult subjects wearing their own binaural hearing aids were e...

The level of sustainable development can be measured by eco-efficiency, which is a combination of economic and ecological performance. Utilizing the weighted sum of the improved proportions of the indicators as the objective function, this paper develops a proportional slacks-based measure model to assess eco-efficiency, in which the conventional inputs, and desirable and undesirable outputs ar...

Dirac measure is an important measure in many related branches to mathematics. The current paper characterizes measure-preserving transformations between two Dirac measure spaces or a Dirac measure space and a probability measure space. Also, it studies isomorphic Dirac measure spaces, equivalence Dirac measure algebras, and conjugate of Dirac measure spaces. The equivalence classes of a Dirac ...