correlation

In this study, the effect of chemical composition of the raw material on the clinker burnability was studied by determination of free CaO (wt %) content of clinker. The burnability of two types of Portland clinker was investigated for silica modules of 2.3, 2.5 and 2.7 and lime saturation factor of 0.88–0.98. In addition, using the Multi-gene genetic programming (MGGP) model, the burnability of clinker was predicted. The results of MGGP model indicated that the performance of the model for predicting the amount of free CaO (wt %) was acceptable.

It has been studied the production of petroleum resins by low-temperature inverse emulsion oligomerization of C9 fraction of diesel fuel pyrolysis liquid by-products. It is established that the determining factors of the C9 fraction of the inverse emulsion oligomerization are the following: reaction time, emulsifier concentration and phase ratio.  Yield and physicochemical characteristics of oligomers сorrelations were established.

According to the analysis of literature sources, the statistical processing of measurement results is not always given due attention. Unfortunately, appropriate algorithms are often limited to simplified statistical procedures, without the proper justification of the objective function, including to check the quality of processing of random data. Therefore, the author plans to publish a series of articles on statistical modeling, which will include the results of original research by the author and others.

When processing the results of measurements big role important presence of correlation values. To find the standard uncertainty need to know the effective number of uncorrelated observations. No correlation can consider could lead to incorrect evaluation of the standard uncertainty of the mean. Not always known autocorrelation function monitoring, and evaluation of the autocorrelation function on observations characterized by low accuracy, which can lead to incorrect finding effective number.

The differencies in tire points of view of frontier Carpathian countries geologists as to the singling out and division of formations are pointed. Suggested in Slovakia ideas about principally new formative categories may be assumed as a basis of theirs correlation along ah Carpathian arc only after joint discussion of this problem by the geologists of different countries immediately on natural sections.

stable tendency of converging, from different sets of randomly seeded initial locations, to virtually indistinguishable final sets of locations, within each of the groups.

The different ways of determination of coefficient of open porosity of terrigenous collectors with regard clayness according to acoustic logging. Coefficients of porosity in these ways and petrophysical relationships were compared with the results of study of core material. For comparison of determined values of porosity coefficient the apparatus of mathematical statistics was used in order to systematize the information received and to estimate the distributions characteristics of this value.

Goal: - to analyze the focal parameters of Crimean earthquakes determined from records of analog and digital seismic stations; - to draw a conclusion about the degree of their correspondence and continuity to the properties and regularities received earlier with the use of only analogue equipment. Methodology. We have chosen the earthquakes in the south of  Ukraine registered parallelly by two kinds of seismographs at the “Simferopol” and “Alushta” stations.

Contemporary geodynamic investigations on a global and regional scale are being realized by network of permanent GNSS stations distributed all over the Earth. The Continental EPN (EUREF Permanent Network) is a European network of 200 permanent stations and the main assignment of EPN is the maintenance of ETRF89. One from many available products as part of project “EPN Coordinate Time Series Analysis Special Project” are components of the velocity vectors of EPN stations.