scholarly journals Development of a mathematical model for calculating the process of crushing hard rocks by explosions of cylindrical charges of explosives

2020 ◽  
Vol 5 ◽  
pp. 30-32
Author(s):  
Norov Yunus Dzhumaevich ◽  
Mehmonov Maksud Rabbonokul ugli
Keyword(s):  
Mathematical Model ◽  
Rock Mass ◽  
Mechanism Of Action ◽  
Mathematical Description ◽  
Granulometric Composition ◽  
Rock Fragmentation ◽  
Hard Rocks ◽  
Definition Of ◽  
The Relationship

The article presents a developed mathematical model for calculating the granulometric composition of the blasted rock mass based on the mechanism of action of an explosion in rocks, a mathematical description of the determination of natural units (blocks) in the rock mass, the relationship between the degree of rock fragmentation and the size of the units and the definition of sections of the controlled pressure zone.

Design and Implementation of Digital Asthma Diagnosis System

2019 ◽  
Vol 14 (3) ◽  
pp. 1-15
Author(s):  
Qinghua Yao ◽  
Xiantao Yang
Keyword(s):  
Mathematical Model ◽  
Mutation Rate ◽  
Forced Expiratory Volume ◽  
Digital Signals ◽  
Respiratory Parameters ◽  
The Mathematical Model ◽  
The Relationship ◽  
Objective Indicators ◽  
Signal Conditioning Circuit

In this article, the MSP430F149 is the microcontroller (MCU), and a pressure sensor, MPX5100AP, is used to measure body measurement of maximal forced expiratory volume (FEV) and peak expiratory flow rate (PEFR). The two analog signals are processed by the signal conditioning circuit, and then the corresponding digital signals are acquired by the MCU. With the related operations of multiple respiratory parameters, a built-up time of respiration signal mutation rate values and the determination of the mutation rate, a mathematical model is built among FEV, PEFR and the rate of variation. The mathematical model of the system is analyzed, and the relationship between the detection results and the degree of airway obstruction is established. Finally, the patient's condition analysis results are given directly on the LCD, which provided the objective indicators for the medical treatment of the disease.

scholarly journals Determination of the rational constructive form of cellular communication towers

2019 ◽  
Vol 20 (2) ◽  
pp. 163-173
Author(s):  
Alexander V. Golikov ◽  
Elena A. Mikhalchonok
Keyword(s):  
Cellular Communication ◽  
Geometric Parameters ◽  
Design Stage ◽  
High Rise ◽  
Optimal Values ◽  
Lattice Towers ◽  
Definition Of ◽  
The Relationship ◽  
Communication Towers

The need for reliable supports for locating and maintaining the equipment of cellular opera-tors is increasing every year. The classic version of the supports are lattice towers. At present, optimization of the parameters of lattice towers, which is one of the ways to improve the efficiency of their design and construction, is of great importance. The purpose of the work is chosen definition of a rational constructive form of lattice cellular communication towers. In the work, the calculation and analysis of the tower supports of a prismatic and pyramidal form are made with varying basic geometric parameters of the structure and the ratio of parameters between them. To create basic dependencies, numerical modeling methods are used. According to the results of a critical analysis of the literature on the calculation of lattice supports of high-rise buildings, the absence of recommended optimal values of the geometric parameters of structures and the relationship between them was established. The stress-strain state of the design models of lattice towers of a prismatic and pyramidal shape was assessed with variation of the main overall geometric parameters of the structures. To achieve the goal of finding a rational structural form of lattice supports, two rationalization criteria have been tested and applied - the simultaneous fulfillment of the requirements of both limiting states and minimization of the mass of the structure. The results of the study of lattice tower supports are presented in dimensionless parameters, which can be applied by the engineer when assigning the overall dimensions of the structure at the initial design stage.

The Estimation of the Thermal Properties of Refractory Materials According to the Temperatures Acceleration Curve at the Blast Furnace Blowing-In

2015 ◽  
Vol 1095 ◽  
pp. 476-482 ◽  
Author(s):  
A.N. Dmitriev ◽  
Maxim O. Zolotykh ◽  
Yury A. Chesnokov ◽  
Oleg Yu. Ivanov ◽  
Galina Yu. Vitkina
Keyword(s):  
Thermal Conductivity ◽  
Mathematical Model ◽  
Blast Furnace ◽  
Thermal Properties ◽  
Thermal Conductivity Coefficient ◽  
Refractory Materials ◽  
Different Types ◽  
Definition Of ◽  
The Mathematical Model

In a laying of a hearth it is usually used to ten different types of the flameproof materials. The characteristics of materials declared by the manufacturer can differ from the actual. For creation of the mathematical model [1, 2] temperatures distributions in a laying of the concrete furnace it is necessary to know thermal conductivity of materials of the specific parties used at construction of the furnace. Definition of the thermal conductivity coefficient allows adapt mathematical model for specific conditions of use. The technique of determination of thermal properties of refractory materials on the temperatures acceleration curve at blowing-in of the blast furnace is described.

scholarly journals МОДЕЛЮВАННЯ ІЗОТЕРМІЧНОГО РЕАКТОРА ДЛЯ НАСИЧЕННЯ САХАРОЗОЮ ЦУКАТІВ З ГАРБУЗА

2018 ◽  
Vol 82 (1) ◽  
Author(s):  
Ірина Олександрівна Гузьова ◽  
Володимир Михайлович Атаманюк
Keyword(s):  
Mathematical Description ◽  
Constant Concentration ◽  
Long Time ◽  
Isothermal Saturation ◽  
Stationary Conditions ◽  
Design Characteristics ◽  
Definition Of ◽  
Isothermal Regime ◽  
Isothermal Mode

Універсальна моделююча програма ChemCad дозволяє провести моделювання процесу насичення плодів гарбуза цукром. Результати моделювання дають можливість здійснення технологічного процесу з мінімальними енергозатратами та максимальним збереженням поживних речовин в готовому продукті, в якому єдиним консервантом буде цукор.За допомогою універсальної моделюючої програми ChemСad був змодельований ізотермічний реактор насичення частинок гарбуза цукром, який працює за умов постійної концентрації сахарози в сиропі і одночасним збільшенням концентрації сахарози в цукатах. Такий процес був змодельований стаціонарним з інтенсивним перемішуванням, працює в ізотермічному режимі і в якому кількість випаруваної води компенсує кількість виділеної води з цукату.Для моделювання  необхідно було попередньо шляхом аналізу математичного опису знайти умови реалізації ізотермічного режиму, розробити математичне забезпечення для проектування реактора.Отримані числові значення результату моделювання, розрахункові та графічні залежності насичення цукатів сахарозою та проаналізовані отримані результати. Доведено, що проводити процес насичення цукатів цукром в стаціонарному режимі доцільно, з точки зору збереження органолептичних властивостей, оптимального насичення цукату, який буде довго зберігати свої властивості і не пліснявіти. ChemCad's universal simulator allows you to simulate the process of saturation of pumpkin fruit with sugar. The simulation results allow the implementation of a technological process with minimal energy consumption and maximum preservation of nutrients in the finished product, in which the only preservative is sugar. With the help of the universal simulation program ChemСad, an isothermal saturation reactor for sugar pumpkin particles was modeled, which operates under the constant concentration of sucrose in syrup and simultaneously increases the concentration of sucrose in candied fruits.Such a process was modeled by stationary with intense mixing, operating in isothermal mode and in which amount of evaporated water compensates for the amount of water extracted from candied fruit. For simulation, it was necessary to pre-analyze the mathematical description of the conditions for the implementation of the isothermal regime, to develop a mathematical support for the design of the reactor.For simulation, it was necessary to pre-analyze the mathematical description of the conditions for the implementation of the isothermal regime, to develop a mathematical support for the design of the reactor to include:- determination of the constant concentration of sugar in vaporized syrup at the end of the process, the flow of solution and vapor;- duration of sucrose saturation under stationary conditions;- definition of reactor design characteristics, diameter height and height of the liquid;Numerical simulation values, graphical and computational relationships are obtained, the result is analyzed.It is proved that the process of saturation of succulents with sugar in the steady state is advisable, in terms of preservation of organoleptic properties, optimum saturation of candied fruit, which will retain its properties and molds for a long time.

scholarly journals THE PHENOMENON OF ALIENATION IN CHILDREN-PARENT RELATIONS

2019 ◽  
pp. 190-195
Author(s):  
E. Е. Ivanova ◽  
Yu. A. Storozheva
Keyword(s):  
Educational Strategy ◽  
Critical Importance ◽  
Same Sex ◽  
Parents And Children ◽  
Opposite Sex ◽  
Parent Relationship ◽  
Definition Of ◽  
The Relationship ◽  
Parent Child Relationships

The main approaches to the definition of the phenomenon of “alienation” have been considered. The causes and dynamics of the emergence of alienation in the child-parent relationship have been investigated. Interconnection of violations in parent-child relationships with the incorrect educational strategy of parents has been revealed. Special attention has been paid to the specificity of manifestations and the nature of alienation in adolescence. It has been supposed about the connection between alienation and style of upbringing of a teenager. The practical part of the article describes the procedure and results of the study on the determination of this connection. The analysis has identified a statistically significant interrelation between alienation and the relationship between parents and children. Critical importance of hypo-care for the formation of teenage alienation has been ascertained. The characteristic of child-parent relations in same-sex and opposite-sex couples child-parent has been made.

God and Nature in Hegel's Logic

1999 ◽  
Vol 20 (1-2) ◽  
pp. 65-83 ◽  
Author(s):  
Cinzia Ferrini
Keyword(s):  
Self Determination ◽  
Focus Attention ◽  
Phenomenology Of Spirit ◽  
Science Of Logic ◽  
Son Of God ◽  
Knowing That ◽  
The Absolute ◽  
Definition Of ◽  
The Relationship

The aim of this essay is to cast light on the puzzling transition from logic to nature that is stated at the end of Hegel's Science of Logic. The passage is summed up by the famous intriguing sentence about the absolute idea freely resolving to let itself go.Firstly, I shall sketch the, so to speak, “divine” features of the absolute philosophical knowing that is to be developed in the Encyclopaedia system. My point is to account for the relationship between the standpoint reached by the Phenomenology of Spirit and the content of the Logic, regarded as the presentation of God as he is in his eternal essence.Secondly, I shall focus attention on the way in which the developed idea of philosophical knowing is systematically displayed in the Encyclopaedia. My point is now to account for: i) the mutual relationships among the three parts of philosophical science (science of logic, philosophy of nature, philosophy of spirit); and ii) the relationship between these parts and the whole of philosophy.Thirdly, I shall examine the two main and opposite standard interpretations of the transition from the first to the second part of the Encyclopaedia. My point here is to challenge the conceptual presuppositions of the readings under consideration, by means of a close examination of the revised editions of Hegel's text.Fourthly, I shall argue for a different view. My last point is to focus on the character of the absolute idea's self-determination. It involves letting the determination of the distinction exist as something independent, so that the “other” obtains the determinacy of “other-being”, of an actual entity. Therefore it must be distanced from the divine way of generating (the Father-Son relationship) that is the form of love. I shall conclude by discussing the implications of Hegel's use of the notion of “creation” and his paradoxical definition of nature as being the Son and not the Son of God.

Extracting K-Ar ages from shales: the analytical evidence

Clay Minerals ◽  
2001 ◽  
Vol 36 (2) ◽  
pp. 227-235 ◽  
Author(s):  
N. Clauer ◽  
S. Chaudhuri
Keyword(s):  
Linear Trend ◽  
Straight Line ◽  
Natural Clays ◽  
Definition Of ◽  
End Members ◽  
The Relationship ◽  
Linear Trends

AbstractThe relationship between the K-Ar dates of mixed natural clays and the ratios of detrital and diagenetic components follows in most cases a linear trend, which agrees with the theory when the K2O contents of the end-members are similar. However, significant deviations from a linear trend may occur and take the form of poorly-defined concave curves. The absence of a linear trend is less likely to be due to the imprecise determination of the ratio between the two end-members than to heterogeneities of the natural samples which may arise from complex K-Ar evolutions of the detrital and diagenetic end-members. The straight-line approach is of limited use in the definition of diagenetic ages in shales by extrapolating linear trends to diagenetic end-members.

scholarly journals CRIME AS AN OBJECT OF INQUIRY IN RUSSIAN CRIMINALISTICS ALEKSEY BESSONOV,

2018 ◽  
Vol 5 (2) ◽  
pp. 112-127
Author(s):  
A. Bessonov
Keyword(s):  
Criminal Activity ◽  
Criminal Cases ◽  
New Techniques ◽  
Crime Investigation ◽  
The Subject ◽  
Definition Of ◽  
Object Of Study ◽  
The Relationship ◽  
Modern Russian

This article deals with the definition of the subject and objects of modern Russian criminalistics. It is aimed at sensitizing world public opinion to the necessity of inquiry into the criminalistic essence of crime and encouraging criminalists to study new techniques of crime investigation in order to mitigate risks and reduce errors arising in the criminal investigation process.One of the main objects that is constantly undergoing research in Russian criminalistics is criminal activity. The subject of Russian criminalistics is the regularities of criminal activity. When investigating crimes scientists are interested in the information that allows the successful investigation of the crimes and determination of the offender. The information about different types of crimes, which is necessary for crime investigation, is accumulated in the criminalistic characteristic of crimes. The Criminalistic Characteristic of Crimes is a scientific theory of modern Russian criminalistics that makes it possible to fully examine the specific features of crimes of all kinds, i.e. the forensic nature (essence) of crime, the system of crime elements with their characteristics, and the relationship between those elements. In U.S. and European criminalistics, the regularities of criminal activity are not defined as an object of study of this science. Yet, in the U.S. and European countries criminal profilers investigating criminal cases study the criminal links between crimes to identify crime series and crimes committed by similar offenders (or to determine co-offenders).

scholarly journals The specificity of political lexicon in the English language

2020 ◽  
pp. 109-118
Author(s):  
Elina Rasimovna Nasibullaeva
Keyword(s):  
English Language ◽  
Stage Of Development ◽  
The Status ◽  
General Scientific ◽  
The Subject ◽  
Definition Of ◽  
The Relationship ◽  
Current Stage ◽  
Political Term

The subject of this research is the political lexicon in the English language. The article examines the criteria fir determination of political lexicon, provides definitions of this term to various scholars, frames the definition of political lexicon, and highlights its peculiarities in the English language. The author also explores the question on the relationship between political lexicon and political (sociopolitical) terminology; defines the concept of “political term”; describes the main means and methods of enriching political lexicon in the English language. The following methods were applies in the course of study: general scientific method for collection of the existing literature on the topic; systematization and generalization for formulation of fundamental concepts of research; random sampling for selecting the examples; contextual analysis for determining the peculiarities of functionality of phrases within the system of English political lexicon and mass media; as well as translational analysis. The scientific novelty consists in the fact that this article allows establishing the status of political theme within the lexical system of English language, since for the current stage of development of linguistic a promising trend is the determination of morphogenetic linguistic phenomena. The author also describes the main means of enriching the lexicon on the example of research material, which allows reflecting the development trends of political lexicon in the modern English language.

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