scholarly journals On the methodics of mathematical modelling of pollution of hydrolithosphere by petroleum products: Exemplified by Kursk oil terminal

2021 ◽  
Vol 19 (1) ◽  
pp. 258-261
Author(s):  
Vladimir Bredikhin ◽  
Vladimir Khaustov ◽  
Dmitriy Melkumov
Keyword(s):  
Mathematical Modelling ◽  
Cross Section ◽  
Dynamic Modelling ◽  
Petroleum Products ◽  
Potential Threat ◽  
Geological Cross Section ◽  
Industrial Object

A potential threat of pollution of hydrolithosphere with petroleum and its products due to accidental and technological leaks on a certain industrial object has been analyzed. The author's method of mathematical modelling is described that allows to perform an adequate dynamic modelling of a petroleum products lens in an aquifer. Execution of the resulting model allows to forecast behavior of petroleum products in the conditions of a real geological and hydro-geological cross-section.

scholarly journals ON THE METHODICS OF MATHEMATICAL MODELLING OF POLLUTION OF HYDROLITHOSPHERE BY PETROLEUM PRODUCTS (EXEMPLIFIED BY KURSK OIL TERMINAL)

2021 ◽  
Vol 19 (1) ◽  
pp. 258-261
Author(s):  
Vladimir Viktorovich Bredikhin ◽  
Vladimir Khaustov ◽  
Dmitriy Melkumov
Keyword(s):  
Mathematical Modelling ◽  
Cross Section ◽  
Dynamic Modelling ◽  
Petroleum Products ◽  
Potential Threat ◽  
Geological Cross Section ◽  
Industrial Object

A potential threat of pollution of hydrolithosphere with petroleum and its products due to accidental and technological leaks on a certain industrial object has been analyzed. The author's method of mathematical modelling is described that allows to perform an adequate dynamic modelling of a petroleum products lens in an aquifer. Execution of the resulting model allows to forecast behavior of petroleum products in the conditions of a real geological and hydro-geological cross-section.

Geological study in Tal - Talekhu section of Manang District along the Besisahar – Chame Road

2020 ◽  
Vol 22 ◽  
pp. 25-28
Author(s):  
Prakash Luitel ◽  
Suman Panthee
Keyword(s):  
Cross Section ◽  
Geological Mapping ◽  
Igneous Rocks ◽  
Geological Cross Section ◽  
Lowermost Part ◽  
Migmatitic Gneiss

The section between Tal to Talekhu of Manang District lacks the detailed geological study. The geological mapping in the scale of 1:50,000 followed by the preparation of geological cross-section and lithostratigraphic column has been done in the present study. The studied area lies partially in the Higher Himalayan Crystalline and the Tibetan Tethys Sequence. The units of the Higher Himalayan Group from Tal to Talekhu consists mainly of vigorous to faintly calcareous gneiss, migmatitic gneiss, quartzite, granite, etc. They are named as the Calc. Silicate Gneiss and Paragneiss and the Orthogneiss and Granite units. The lowermost part of the Tibetan Tethys consisted of metamorphosed calcareous rocks containing silicates and feldspar, so this unit is termed as the Marble and Calc. Gneiss. The section is about 9 km in thickness and is highly deformed with presence of igneous rocks at many places.

Integrated crustal–geological cross-section of Ellesmere Island

2017 ◽  
Vol 460 (1) ◽  
pp. 7-17 ◽  
Author(s):  
R. Stephenson ◽  
K. Piepjohn ◽  
C. Schiffer ◽  
W. Von Gosen ◽  
G. N. Oakey ◽  
...  
Keyword(s):  
Cross Section ◽  
Ellesmere Island ◽  
Geological Cross Section

On the Margins of Science and Civilization: W. K. Gordon's 1895 Geological Reconnaissance in the Trans-Pecos Borderlands

2008 ◽  
Vol 27 (1) ◽  
pp. 113-130
Author(s):  
Richard Francaviglia
Keyword(s):  
Cross Section ◽  
Plate Tectonics ◽  
Igneous Rocks ◽  
Mining Engineer ◽  
Intrinsic Interest ◽  
West Texas ◽  
Coal Deposits ◽  
Geological Cross Section ◽  
Field Report ◽  
Semi Arid

In 1895, self-trained mining engineer William K. Gordon, Sr (1862-1949) conducted a geological reconnaissance trip to far West Texas in search of coal deposits. A report from that trip reveals how Gordon's training in geology (acquired largely through reading) and his intrinsic interest in stratigraphy and geomorphology helped him effectively advise the Texas and Pacific Coal Company about the bleak prospects there. In 2005, using Gordon's never-before consulted field report, the author retraced, or rather re-hiked, Gordon's route. Gordon's report features hand-drawn maps and a geological cross-section that were field checked and compared to later data. The author concludes that Gordon enthusiastically, but often inaccurately, described the complex petrology in the rugged, semi-arid Eagle Mountains. Gordon was evidently vexed by how to identify some of the highly varied extrusive igneous rocks here. Nevertheless, Gordon's work should be recognized as the earliest serious geological reconnaissance in a remote area that would much later (1963) be studied in detail by geologists who had at their disposal considerably better tools to analyze the petrology, and possessed a growing awareness of plate tectonics that were unknown in Gordon's time.

Gearbox Systems Dynamic Modelling for Diagnostic Fault Detection

2003 ◽  
Author(s):  
Walter Bartelmus ◽  
Radosław Zimroz
Keyword(s):  
Computer Simulation ◽  
Mathematical Modelling ◽  
Dynamic Modelling ◽  
Vibration Signal ◽  
Vibration Signals ◽  
Time Frequency ◽  
Network Training ◽  
Condition Change ◽  
Tooth Stiffness ◽  
Distributed Faults

The paper deals with mathematical modelling and computer simulation of a gearbox driving system with a double stage gearbox. Mathematical modelling and computer simulations are used for supporting diagnostic inference. Vibration is thought of as a signal of gear condition. It is stressed that vibration generated by gears is influenced by many factors. These factors are divided into four groups: design, production technology, operational, condition change. The condition change of a gearbox is given by gear faults that are divided into single faults such as a tooth crack or breakage or distributed faults as pitting, scuffing, and erosion. The faults are modelled in the case of a crack as a change of tooth stiffness in the case of distributed faults they are given multi-parameter functions. Simulated signals undergo signal analysis by spectrum, cepstrum, time-frequency spectrogram. It has been shown by computer simulation that single and distributed faults are identified by cepstrum. For explicit fault identification time-frequency spectrogram has to be additionally used. The computer simulation results are confirmed by analysis of measured vibration signals received from a gearbox wall/housing. The aim of mathematical modelling and computer simulation, besides finding the relationship between gear condition and vibration signal is in the future to give vibration signals for neural network training.

Effectiveness of Catalyst Extrudate of Tetralobed Cross Section Under Conditions of Influence of Internal Diffusion

1997 ◽  
Vol 62 (2) ◽  
pp. 223-237
Author(s):  
Jan Martinec ◽  
Jiří Hanika
Keyword(s):  
Experimental Data ◽  
Mathematical Modelling ◽  
Cross Section ◽  
Qualitative Agreement ◽  
Catalyst Particle ◽  
Order Reaction ◽  
Internal Diffusion ◽  
Dehydration Reaction ◽  
Isothermal Conditions

The results are summarized of mathematical modelling of the effect of internal diffusion on the rate of m-th order reaction taking place under non-isothermal conditions in the catalyst particle with tetralobed cross section. The effectiveness of the tetralobe-shaped extrudate is compared with that of cylindrical extrudate. The results obtained on the basis of mathematical modelling are confronted with the experimental data obtained on studying the dehydration reaction of cyclohexanol on cylindrical and tetralobed extrudates of gama-alumina under the conditions of influence of internal diffusion. The experimental data are in a qualitative agreement with the theoretical ones and confirm the higher effectiveness of shaped catalyst in comparison with the cylindrical extrudate catalyst.

Physico-Mechanical and Chemical Characteristics of Amber

2018 ◽  
Vol 277 ◽  
pp. 80-89 ◽  
Author(s):  
Zynovii Malanchuk ◽  
Viktor Moshynskyi ◽  
Yevhenii Malanchuk ◽  
Valerii Korniienko
Keyword(s):  
Chemical Composition ◽  
Cross Section ◽  
Sandy Soil ◽  
Chemical Elements ◽  
Chemical Characteristics ◽  
Geological Cross Section ◽  
Sandy Shale ◽  
The Cost ◽  
Physical And Chemical

Amber of amber-bearing deposits in Rivne-Volyn region of Ukraine has been analyzed. Relying upon instrumental techniques, physical and chemical as well as spectral analyses, and geological prospecting of the deposits, chemical composition and ultimate composition of amber occurring at the territory of Klesiv deposit (Ukraine, Rivne Region, Sarny District) have been identified. Klesiv amber contains the greatest part of inclusions; it contains 18 chemical elements. Basing upon the performed geological cross-section it has been determined that the amber occur in sandy soil and sandy-shale soil. The depth is insignificant – from 1 m to 10 – 15 m. Moreover, to determine the cost, experimental technique has been developed. The technique involves classification of the amber fragments according to their form, dimensions, and colour. Lithologic-and-facies sections of sites of Klesiv deposit have been obtained.

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