scholarly journals The Influence of the Physical-Mechanical Parameters of Rock on the Extent of the Initial Failure Zone under the Action of an Undercut Anchor

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1841
Author(s):  
Józef Jonak ◽  
Robert Karpiński ◽  
Andrzej Wójcik ◽  
Michał Siegmund
Keyword(s):  
Raw Materials ◽  
Field Tests ◽  
Finite Element Method Simulation ◽  
Failure Zone ◽  
Mechanical Parameters ◽  
Fem Simulations ◽  
Stage Of Development ◽  
Working Surface ◽  
Initial Stage ◽  
Rock Parameters

This paper presents the results of a numerical FEM (Finite Element Method) simulation of the formation of a rock failure zone in its initial stage of development. The influence of rock parameters, such as the Young’s modulus, Poisson’s ratio and friction factor of the rock in the contact zone with the working surface of the undercut anchor head, were taken into account. The obtained results of FEM simulations were compared with the results of field tests conducted in Polish mining plants extracting rock raw materials.

scholarly journals Perspective Of Using Muruntau Career’s Overburden As Back Up Sources Of Raw Materials

2021 ◽  
Vol 03 (01) ◽  
pp. 170-175
Author(s):  
Naimova Rano Shukurovna ◽  
◽  
Norova Xurshida Yunusovna ◽  
Jurayev Salokhiddin Jumaboyevich ◽  
Umirzoqov Azamat Abdurashidovich ◽  
...  
Keyword(s):  
Raw Materials ◽  
Poor Quality ◽  
Industrial Processing ◽  
Stage Of Development ◽  
Initial Stage ◽  
Open Cast Mine ◽  
Open Cast ◽  
Gold Bearing

In given article questions of perspective use breeds of open-cast mine Muruntau as a reserve raw source are reflected. On the basis of the analysis it is established, that ore of the raised quality, and ore went to an initial stage of development of a deposit for processing more poor quality concerned to for the balance to stocks and collected in warehouses. Therefore the mountain weight saved up in sailings for today represents certain interest as gold-bearing raw materials, essentially suitable for industrial processing for the purpose of reception of additional quantity of gold.

scholarly journals TECHNOLOGICAL POTENTIAL OF THE USE OF SALTED TROUT IN THE PRODUCTION OF MELTED CHEESE

2019 ◽  
pp. 95-102
Author(s):  
A. I. Yashkin ◽  
Yu. S. Vyugova
Keyword(s):  
Melting Temperature ◽  
Raw Materials ◽  
Storage Period ◽  
Raw Material ◽  
Fish Fillet ◽  
Processed Cheese ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Stage Of Development ◽  
Technological Potential ◽  
Initial Stage

The use of raw materials obtained from the products of river and sea fishing in the technology of melted cheeses is a promising direction of food combinatorics. The aim of the work was to study and develop the technology of processed cheese enriched with meat ща salted rainbow trout (Oncorhynchus mykiss). At the stage of development of the formulation of the combined product, the dosages of introducing the crushed fish fillet in the range from 2 % to 15 % to the mass of the raw material were tested. The fish meat was introduced at the stage of preparation of the mixture and during the melting of the cheese mass. The dosage of the fish component in the amount of 10 % introduced into the mass at the initial stage of melting the product is justified. The analysis of the microstructure of the produced cheeses showed that with the increase in the melting temperature and the amount of fish introduced, the tissues of the latter form a threadlike structure in the product, penetrating the components of the cheese mass. The effective melting temperature of the combined mixture is 85 °C, which allows to obtain a high-quality product. Increasing the melting temperature from 70 °C to 90 °C contributes to a systematic decrease in viscosity and yield strength of the cheese mass by 29 % from 82 to 58 Pa. The shelf life of enriched processed cheese, which is 50 days. During the storage period of the finished product, microbiological stability is noted against the background of a decrease in the active acidity of cheese from pH 5.87 to pH 5.54.

The Belt and Road Initiative and Sino-Russian economic cooperation: Is there one more chance for us?

2019 ◽  
pp. 47-71
Author(s):  
Petr M. Mozias
Keyword(s):  
Regional Integration ◽  
Raw Materials ◽  
Belt And Road Initiative ◽  
Stage Of Development ◽  
Belt And Road ◽  
Flexible Framework ◽  
The One ◽  
International Transactions ◽  
The Belt And Road ◽  
Current Stage

China’s Belt and Road Initiative could be treated ambiguously. On the one hand, it is intended to transform the newly acquired economic potential of that country into its higher status in the world. China invites a lot of nations to build up gigantic transit corridors by joint efforts, and doing so it applies productively its capital and technologies. International transactions in RMB are also being expanded. But, on the other hand, the Belt and Road Initiative is also a necessity for China to cope with some evident problems of its current stage of development, such as industrial overcapacity, overdependence on imports of raw materials from a narrow circle of countries, and a subordinate status in global value chains. For Russia participation in the Belt and Road Initiative may be fruitful, since the very character of that project provides us with a space to manoeuvre. By now, Russian exports to China consist primarily of fuels and other commodities. More active industrial policy is needed to correct this situation . A flexible framework of the Belt and Road Initiative is more suitable for this objective to be achieved, rather than traditional forms of regional integration, such as a free trade zone.

The Use of a Sensor Modules System for Measuring Drilling Parameters in a Bit, Significantly Reduces the Construction Time of Wells in Eastern Siberia

2021 ◽  
Author(s):  
Andrey Alexandrovich Rebrikov ◽  
Anton Anatolyevich Koschenkov ◽  
Anastasiya Gennadievna Rakina ◽  
Igor Dmitrievich Kortunov ◽  
Nikita Vladimirovich Koshelev ◽  
...  
Keyword(s):  
Oil And Gas ◽  
New Technologies ◽  
Field Tests ◽  
Depth Of Cut ◽  
Drilling Process ◽  
Eastern Siberia ◽  
Construction Time ◽  
Stage Of Development ◽  
Drilling Parameters ◽  
Pdc Bit

Abstract Currently, production and exploration drilling has entered a stage of development where one of the highest priority goals is to reduce the time for well construction with new technologies and innovations. One of the key components in this aspect is the utilizing of the latest achievements in the design and manufacture of rock cutting tools – drill bits. This article presents some new ideas on methods for identifying different types of vibrations when drilling with PDC bits using a system of sensors installed directly into the bit itself. In the oil and gas fields of Eastern Siberia, one of the main reasons for ineffective drilling with PDC bits are vibrations, which lead to premature wear of the cutting structure of the bit and the achievement of low ROPs in the dolomite and dolerite intervals. For efficient drilling of wells of various trajectories with a bottom hole assembly (BHA), including a downhole motor (PDM) and a PDC bit, special attention is paid to control of the bit by limiting the depth of cut, as well as the level of vibrations that occur during drilling process. Often, the existing complex of surface and BHA equipment fails to identify vibrations that occur directly on the bit, as well as to establish the true cause of their occurrence. Therefore, as an innovative solution to this problem, a system of sensors installed directly into the bit itself is proposed. The use of such a system makes it possible to determine the drilling parameters, differentiated depending on the lithological properties of rocks, leading to an increase in vibration impact. Together with the Operators, tests have been successfully carried out, which have proven the effectiveness of the application of this technology. The data obtained during the field tests made it possible to determine the type and source of vibration very accurately during drilling. In turn, this made it possible to precisely adjust the drilling parameters according to the drilled rocks, to draw up a detailed road map of effective drilling in a specific interval. Correction of drilling parameters based on the analysis of data obtained from sensors installed in the bit made it possible to reduce the resulting wear of the PDC bit cutting structure and, if necessary, make changes to the bit design to improve the technical and economic indicators. Thus, the use of a system of sensors for measuring the drilling parameters in a bit ensured the dynamic stability of the entire BHA at the bottomhole when drilling in rocks of different hardness, significantly reduced the wear of the drilling tools and qualitatively improved the drilling performance.

scholarly journals Artificial Intelligence to Improve the Business Efficiency and Effectiveness for Enterprises in Kazakhstan

2021 ◽  
pp. 34-41
Author(s):  
Mohamed Hamada ◽  
Daniya Temirkhanova ◽  
Diana Serikbay ◽  
Sanzhar Salybekov ◽  
Saltanat Omarbek
Keyword(s):  
Artificial Intelligence ◽  
Legal Framework ◽  
Legal Aspects ◽  
Stage Of Development ◽  
Initial Stage ◽  
Efficiency And Effectiveness ◽  
Business Efficiency ◽  
Big Picture ◽  
Data Extracting ◽  
Goals And Objectives

The main objective of the research is identifying the effectiveness of artificial intelligence in the business sphere of Kazakhstan. The urgency of this problem is due to the fact that the Kazakhstani market for artificial intelligence is at the initial stage of development. The main obstacle to the introduction of artificial intelligence is the unpreparedness of managers of small and medium-sized businesses for the application of artificial intelligence technologies and, of course, the high cost of their implementation. In the study, we proceeded from the key thesis that business in Kazakhstan is striving for digital transformation. We set a goal to determine the attitude and degree of readiness of Kazakhstani business to the implementation and practical application of artificial intelligence, to describe the cases of using artificial intelligence by Kazakhstani business, to identify the main questions that arise in business at this stage, to study the legal aspects of using artificial intelligence in business and to present the big picture compliance / inconsistency of the existing legal framework with the goals and objectives of the development of artificial intelligence, provide recommendations for eliminatinge xisting barriers and stimulating businesses to implement the technology. Within the framework of this study, the concept of artificial intelligence is defined in its broadest sense - as a set of technologies for processing various types of data and information, in particular those capable of interpreting such data, extracting knowledge and using it to achieve certain goals.

scholarly journals Initial stage of development and migratory behavior of Toxocara canis larvae in BALB/c mouse experimental model

2008 ◽  
Vol 7 (2) ◽  
pp. 444-450 ◽  
Author(s):  
M.L. Camparoto ◽  
B. Fulan ◽  
C.M. Colli ◽  
M.L. Paludo ◽  
A.L. Falavigna-Guilherme ◽  
...  
Keyword(s):  
Experimental Model ◽  
Toxocara Canis ◽  
Migratory Behavior ◽  
Stage Of Development ◽  
Initial Stage

scholarly journals Study on the development of nanotechnology in advanced countries and in Brazil

2009 ◽  
Vol 45 (2) ◽  
pp. 189-200 ◽  
Author(s):  
Carolina Fracalossi Rediguieri
Keyword(s):  
Reference Lists ◽  
Scientific Literature ◽  
Developed Countries ◽  
Public And Private ◽  
Stage Of Development ◽  
Research Institutes ◽  
Initial Stage ◽  
Private Investments ◽  
The World ◽  
The Developed Countries

The study shows how nanotechnology evolves in developed countries and Brazil, raising aspects of private and governmental initiatives. The investigation was based in scientific literature, electronic articles and conference reports. Several sources of literature were used, including electronic databases and reference lists. By this study, it was observed that, although nanotechnology is in initial stage of development all over the world, the developed countries have had growing public and private investments in the area each year. In those countries, there is a concern toward both, the formation of specialists in nanotechnology and the transference of technology developed in universities and research institutes to industry. In Brazil, the study showed that despite the growing concern of investigators, national research centers and financial centers toward the development of the nanotechnology, there is still a need for more investment and formation of area specialists.

Radiographic study of the initial stage of development of an underground explosion in sandy soil

1970 ◽  
Vol 6 (3) ◽  
pp. 320-326 ◽  
Author(s):  
L. V. Al'tshuler ◽  
A. V. Balabanov ◽  
V. A. Batalov ◽  
V. A. Rodionov ◽  
D. M. Tarasov
Keyword(s):  
Sandy Soil ◽  
Underground Explosion ◽  
Radiographic Study ◽  
Stage Of Development ◽  
Initial Stage
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