Monitoring Pressure and Saturation Changes in a Clastic Reservoir from Time-lapse Seismic Data Using the Extended Elastic Impedance Method

The Extended Elastic Impedance (EEI) concept has been used by the oil industry primarily for lithology and fluid prediction in exploration and development projects. We present a method of reservoir monitoring that identifies and maps changes in pressure and saturation in a producing reservoir by applying EEI to time-lapse seismic data. The method uses time-lapse seismic difference data rotated to specific EEI ? angles which are optimised for the changes expected in a given reservoir

Knowledge Discovery in the SCADA Databases Used for the Municipal Power Supply System

This scientific paper delves into the problems related to the develop-ment of intellectual data analysis system that could support decision making to manage municipal power supply services. The management problems of mu-nicipal power supply system have been specified taking into consideration modern tendencies shown by new technologies that allow for an increase in the energy efficiency. The analysis findings of the system problems related to the integrated computer-aided control of the power supply for the city have been given. The consideration was given to the hierarchy-level management decom-position model. The objective task targeted at an increase in the energy effi-ciency to minimize expenditures and energy losses during the generation and transportation of energy carriers to the Consumer, the optimization of power consumption at the prescribed level of the reliability of pipelines and networks and the satisfaction of Consumers has been defined. To optimize the support of the decision making a new approach to the monitoring of engineering systems and technological processes related to the energy consumption and transporta-tion using the technologies of geospatial analysis and Knowledge Discovery in databases (KDD) has been proposed. The data acquisition for analytical prob-lems is realized in the wireless heterogeneous medium, which includes soft-touch VPN segments of ZigBee technology realizing the 6LoWPAN standard over the IEEE 802.15.4 standard and also the segments of the networks of cellu-lar communications. JBoss Application Server is used as a server-based plat-form for the operation of the tools used for the retrieval of data collected from sensor nodes, PLC and energy consumption record devices. The KDD tools are developed using Java Enterprise Edition platform and Spring and ORM Hiber-nate technologies

Theoretical Approaches to Lignin Chemistry

A critical review is presented of the applications of theoretical methods to the studies of the structure and chemical reactivity of lignin, including simulation of macromolecular properties, conformational calculations, quantum chemical analyses of electronic structure, spectra and chemical reactivity. Modern concepts of spatial organization and chemical reactivity of lignins are discussed

Depolymerization of Lignin in Wood with Molecular Hydrogen Iodide

Depolymerization of lignin in wood with hydrogen iodide in a non-polar solvent is a selective, high-yield reaction that releases a diiodide of potential synthetic value into the solution. Finely milled wood (Douglas-fir, spruce, aspen, and sugarcane), was suspended in CDCl3 and treated with dry hydrogen iodide in a NMR tube. The yields and composition of the chloroform-soluble monomeric lignin depolymerization products, 1,3-diiodo-1-(4-hydroxyaryl)propanes, originated from guaiacyl (G), syringyl (S) and 4-hydroxyphenyl (H) units were assessed on a semi-quantitative basis. 1,3-Diiodoguaia-cylpropane was the only product obtained from softwood whereas hardwood and grassy materials gave the mixtures of two (G, S) and three (G, S, H) products, respectively. This finding opens new avenues in utilization of wood wastes

A CDNO/S3 Study of the p-Quinonemethide-Phenol Interaction

The dependence of the electronic structure of p-quinonemethide - phenol and p-quinonemethide - phenolate anion systems on interplane distance and mutual orientation of the reactants was analyzed on the basis of CNDO/S3calculations. The approach of two reactants results in aminor change in the charge transfer electron transition, Its high energy indicates a low probability of electron transfer to be the first stage of the chemical reaction

"The Information as Absolute" conception: Marxism and "now"

Abstract In this paper the some problems of relevance of Marxism in applications to recent societies are considered in framework of the “The Information as Absolute” conceptio