Acridinium Ion Ionization at Elevated Temperatures andPressures to 200 °C and 2000 bar

The temperature and pressure dependences of pK for acridine ion ionization were determined up to 200 °C and 2000 bar. The UV-Vis measurements at high temperatures and pressures were conducted in flow-through spectrophotometric cells. Two independent series of experiment were performed: one in a Ti-Pd cell with silica quartz windows for measurements in the ultraviolet region, and another in a Ti grade 5 cell with sapphire windows for use at higher pressures, which permitted measurements in the visible region. Combined chemometric and thermodynamic analyses of the UV-Vis spectrophotometric data were used to extract the ionization constants as well as the changes in molar volume ΔV° for acridine protonation as functions of temperature and pressure. Values of pK decrease from 5.52 to 3.74 with increasing temperature from 25 to 200 °C at saturated water-vapor pressure. The pressure dependence of acridinium ion ionization is small (e.g., pK=5.5 at 25 °C and 2000 bar) and is characterized by positive ΔV°≤1.2cm3⋅mol−1, which is not surprising for this type of isocoulombic reaction involving a large molecul

A Spectrophotometric Study on Uranyl Nitrate Complexation to 150 °C

The formation constant of the mononitratouranyl complex was studied spectrophotometrically at temperatures of 25, 40, 55, 70, 100 and 150 °C (298, 313, 328, 343, 373 and 423 K). The uranyl ion concentration was fixed at approximately 0.008 mol⋅kg−1 and the ligand concentration was varied from 0.05 to 3.14 mol⋅kg−1. The uranyl nitrate complex, UO2NO 3 + , is weak at 298 K but its equilibrium constant (at zero ionic strength) increases with temperature from log 10 β 1=−0.19±0.02 (298 K) to 0.78±0.04 (423 K

SYNTEZA INTELIGENTNEGO PODSYSTEMU DYNAMICZNEJ DIAGNOSTYKI STANU TURBOGENERATORÓW ELEKTROWNI CIEPLNYCH

Technique of creating a sub-line diagnostics status turbine unit thermal power plant based on an analysis of its diagnostic features. Rapid assessment of the technical state of turbine unit allows an early stage to detect the possibility of an emergency and to localize it. It involves the integration of the subsystems of the existing process control system (PCS), which will allow more efficient use of its information, hardware and software. Evaluation of the technical condition of the turbine unit thermal power plant is proposed to determine the use of modern intelligent technologies. The proposed method was used in the development of rapid diagnostic subsystems technical state of turbine of thermal power in Almaty.Zaproponowano metodykę opracowania podsystemu dynamicznej diagnostyki stanu turbogeneratora elektrowni cieplnej, która bazuje na analizie jego cech diagnostycznych. Dynamiczna ocena technicznego stanu turbogeneratora pozwala na wykrycie we wczesnym stadium awaryjnych sytuacji i jej lokalizacji. Proponuje się integrację tego podsystemu z istniejącym systemem automatycznego sterowania procesem technologicznym, co pozwoli bardziej efektywnie wykorzystać jego informacyjne, techniczne i programowe zabezpieczenia. Ocena technicznego stanu turbogeneratora elektrowni cieplnej proponuje się określić z wykorzystaniem współczesnych technologii inteligentnych. Zaproponowana metodyka była wykorzystana przy opracowaniu podsystemu diagnostyki dynamicznej stanu technicznego turbogeneratora w elektrowni cieplnej w Ałmaty

KONCEPCJA BUDOWY INTELIGENTNEGO SYSTEMU KONTROLI I DIAGNOSTYKI OPERACYJNEJ STANU TECHNICZNEGO WYPOSAŻENIA

The authors propose a concept for developing a system of automated monitoring and on-line diagnostics of main technological equipment conditions. Monitoring and diagnostics system should work along with the automated control system. In this case, the effects of the optimal control and operational forecasting of the process equipment will complement each other and enhance the overall efficiency of the system. The proposed technique for developing diagnostic algorithms with the use of intelligent technologies will speed up their development and improve the accuracy of forecasting.Zaproponowano koncepcję budowy systemu automatycznej kontroli i diagnostyki operacyjnej stanu podstawowego wyposażenia technicznego. System kontroli i diagnostyki powinien działać razem z automatycznym systemem sterowania. Przy tym rezultaty optymalnego sterowania i operacyjnego prognozowania stanu technicznego będą dopełniać się wzajemnie i podwyższać całkowitą efektywność systemu. Proponowana metodyk

PERSPEKTYWY WYKORZYSTANIA SYSTEMÓW INTELIGENTNYCH W ZARZĄDZANIU PROCESAMI WZBOGACANIA METODĄ GRAWITACYJNĄ

Intelligent control systems are actively developing and can significantly reduce financial costs and improve the environmental performanceof ore-dressing processes. Usage of intelligent control systems for gravitational enrichment allows to minimize costs and negative influence of ore tailson the environment, exclude losses of concentrate and energy resources in the ore-dressing process. The paper discusses the problems and prospectsfor the application of intelligent control systems of gravity concentration equipment. A structure of the control system and an intelligent modelfor determining the frequency of pulsation jigging machine based on fuzzy logic are proposed. The model is based on data obtained from experts,it is researched. The obtained results allow to judge about the prospects for the implementation of intelligent systems in the management of ore enrichment.Zastosowanie inteligentnych systemów zarządzania wzbogacaniem grawitacyjnym zminimalizuje koszty i negatywny wpływ odpadów przeróbczych na środowisko, wyeliminuje straty koncentratu i zasobów energetycznych w procesie zagęszczania rudy. W artykule omówiono problemyi perspektywy zastosowania inteligentnych systemów sterowania urządzeń do wzbogacania metodą grawitacyjną. Zaproponowano strukturę systemu sterowania i model inteligentny do określania częstotliwości maszyny sedymentacyjnej na bazie logiki rozmytej. Model opiera się na danych otrzymanych od ekspertów. Uzyskane wyniki pozwalają nam ocenić perspektywy wdrożenia inteligentnych systemów w procesach kontroli przerobu rudy

Mythoecologization of Artistic Subjects and Themes in the Tapestries of Raushan Bazarbayeva

Mytho-ecologization of tapestry subjects and themes in contemporary textile art is one of the most important trends in the future development of this art type. The masters of contemporary Kazakh tapestry imbue their works with the content that does not only depict one-dimensional beauty or ugliness of the environment but also transmit such meanings as the everlasting value, uniqueness, necessity, fragility and the vital need to reconsider human place in these circumstances. This paper provides an art historical analysis of the tapestries created by the famous Kazakh textile artist Raushan Bazarbayeva, whose work is characterized by the mythoecologization of compositional subjects, the poetic quality of her visual language and the veneration of beauty and promotion of a harmonious co-existence between humans and their environment. We demonstrate that the key to understand such works is to interpret them through the combined lens of rootedness in traditional past and sensitivity to current environmental challenges. Keywords: contemporary Kazakh tapestry, Kazakhstan artistic textile, tapestries by Raushan Bazarbayeva, mythoecologization of consciousness, sustainability, decorative language of tapestr

USE OF CONJOINT REACTIONS FOR EXTRACTION OF METALS FROM MINERAL RAW MATERIALS

In the article there are some data on extraction of metals into a solution from compound mineral raw materials by means of electrochemical leaching. Leaching reagent (sodium thiosulfate, etc.) was obtained at the same time with reaction of resolving metals in a solution of sodium alkali. Resource of sulfur for obtaining the leaching reagent was a composite sulfurgraphite electrode, which was used at metal resolution as a cathode and as an anode. At that there were obtained similar results on extraction of metals into a solution

Construction of generalized Rademacher functions in terms of ternary logic: solving the problem of visibility of using Galois fields for digital signal processing

Using generalized Rademacher functions, constructed as a sequence of elements of Galois fields , and intended to find the spectral representation of signals with n levels, the expediency of using the concept of "logical imaginary unit" is substantiated. These functions form a complete basis on the interval corresponding to 3^n -1 discrete time intervals and for n=1  passing into the classical Rademacher functions. The advantage of such spectra obtained using Galois Fields Fourier Transform is that the range of variation of the spectrum amplitudes remains the same as the range of variation of the original signal, which is modeled on discrete time functions taking values in the Galois field

INNOVATIONS IN FUNDAMENTAL STUDIES FOR EDUCATION

This article reviews the influence of new knowledge in natural sciences as it relates to development of innovative technical solutions. It explains the necessity of applying new scientifical concepts to the structure of liquid systems in educating versatile specialists in order to overcome difficulties in creation of effective technical solutions