scholarly journals Adaptive control of ore mill charge

2019 ◽  
Vol 123 ◽  
pp. 01038 ◽  
Author(s):  
Natalia Morkun ◽  
Tetiana Oliinyk ◽  
Iryna Kasatkina ◽  
Oleksandr Rytsko
Keyword(s):  
Adaptive Control ◽  
Kalman Filter ◽  
Raw Materials ◽  
Single Type ◽  
Mining Operations ◽  
Operating Data ◽  
Current State ◽  
Measurement Results ◽  
Mill Charge

The system of mining operations does not enable long-lasting mining of single-type ores that causes instability of mineral materials intended for concentration. To solve the problem of controlling these processes on the basis of operating data on characteristics of processed raw materials, the method of controlling mill charge is suggested considering measurements of its output product. This method is based on correlation of the output product quantity and the rate of the mill charge. The process of the object’s operation is modeled, while time characteristics of the output controlled value and the mill charge are approximated to assess accuracy of the method of determining the mill charge. The possibility to use the discrete Kalman filter is studied in order to indentify the object’s characteristics under noises by measurement results. It is shown that application of the Kalman filter to controlling the mill charge enables not only solving the problem of filtration aimed to obtain data on the object’s current state, but also predicting its state.

Problems of ensuring metrological traceability of measurement results of indicators of quality for food products and food raw materials

2020 ◽  
pp. 64-70
Author(s):  
Mariya Y. Medvedevskikh ◽  
Anna S. Sergeeva
Keyword(s):  
Reference Materials ◽  
Mass Fraction ◽  
Nutritional Value ◽  
Animal Feed ◽  
Raw Materials ◽  
Meat Products ◽  
Metrological Traceability ◽  
Food Products ◽  
Freeze Dried ◽  
Measurement Results

The article raises the problem of ensuring metrological traceability of the measurement results of indicators of quality and nutritional value for food products and food raw materials: water (moisture), nitrogen (protein, crude protein), fat, ash and carbohydrates. The problem under consideration can be solved by applying reference materials of food composition, traceable to state primary measurement standards GET 173-2017 and GET 176-2019 and primary reference measurement procedures (PRMP), for attestation of measurement procedures and accuracy checking of measurement results. The article discusses the results of the PRMP development of mass fraction of fat, ash and carbohydrates in food products and food raw materials, as well as mass fraction of crude fat (oil content) in oil crops seeds and products based on them. The paper also presents metrological characteristics of reference materials of composition of dry dairy products, grain-milk dry porridges for nutrition of babies, grain dry porridges for nutrition of babies, egg powder, freeze-dried meat products, animal feed. The results of the work allow for building a chain of metrological traceability from GET 173-2017, GET 176-2019 and PRMP to routine measurement procedures, thereby ensuring the uniformity of measurements of nutritional value of food products.

Modernization of Russian Economy: Radical Improvement of Investment Climate (The Economic Report of All-Russia Public Organization "Delovaya Rossiya")

2010 ◽  
pp. 68-89
Author(s):  
. Delovaya Rossiya (Business Russia)
Keyword(s):  
Innovation Policy ◽  
Raw Materials ◽  
Regional Level ◽  
Public Organization ◽  
Investment Climate ◽  
Economic Report ◽  
Russian Economy ◽  
Current State ◽  
Regional Authorities

The repot considers the current state of the Russian economy, analyzes the drawbacks of the functioning export-raw materials model of its development. The necessity of its changing on the basis of improving the investment climate on the regional level is noted. Corresponding measures on behalf of federal and regional authorities are formulated as well as the directions of innovation policy aimed at modernizing the Russian economy. The conclusion is made that private non-raw materials business should become the main agent of modernization in our country.

Current state and perspectives in automation of the open pit mining operations

2019 ◽  
Vol 8 (30) ◽  
pp. 115-123
Author(s):  
A.A. Sobolev ◽  
◽  
G.V. Sekisov ◽  
A.Yu. Cheban ◽  
N.M. Litvinova ◽  
...  
Keyword(s):  
Open Pit ◽  
Open Pit Mining ◽  
Mining Operations ◽  
Current State

An Implicit Algorithm of Solving Nonlinear Filtering Problems

2014 ◽  
Vol 16 (2) ◽  
pp. 382-402
Author(s):  
Feng Bao ◽  
Yanzhao Cao ◽  
Xiaoying Han
Keyword(s):  
Kalman Filter ◽  
Particle Filter ◽  
Nonlinear Filtering ◽  
State Equation ◽  
Nonlinear Filter ◽  
Filter Method ◽  
Simulation Methods ◽  
Current State ◽  
Numerical Simulation Methods ◽  
Kalman Filter Method

AbstractNonlinear filter problems arise in many applications such as communications and signal processing. Commonly used numerical simulation methods include Kalman filter method, particle filter method, etc. In this paper a novel numerical algorithm is constructed based on samples of the current state obtained by solving the state equation implicitly. Numerical experiments demonstrate that our algorithm is more accurate than the Kalman filter and more stable than the particle filter.

scholarly journals Eco-design processes in the automotive industry

2020 ◽  
Vol 26 (4) ◽  
pp. 131-137
Author(s):  
Ewelina Staniszewska ◽  
Dorota Klimecka-Tatar ◽  
Matevž Obrecht
Keyword(s):  
Supply Chain ◽  
Automotive Industry ◽  
Raw Materials ◽  
Environmental Damage ◽  
Passenger Cars ◽  
Chain Management ◽  
Design Processes ◽  
Current State ◽  
Life Phase ◽  
The Impact

AbstractEvery year approximately 70 million passenger cars are being produced and automotive industry is much bigger then just passenger cars. The impact of automotive industry on the environment is tremendous. From extracting raw materials through manufacturing and assembly processes, exploitation of the vehicle to the reprocessing irreversible, extensive environmental damage is done. The goal of this study is to show how implementing eco-design processes into supply chain management can reduce the impact of automotive industry on the environment by e.g. reducing the use of the fuel, increasing the use of recycled materials. Focus is on evaluation of current state, environmental impacts and potential improvements for design, raw materials, manufacturing and distribution and end-of-life phase.

scholarly journals CO2 Utilization and Long-Term Storage in Useful Mineral Products by Carbonation of Alkaline Feedstocks

2021 ◽  
Vol 9 ◽  
Author(s):  
Renato Baciocchi ◽  
Giulia Costa
Keyword(s):  
Raw Materials ◽  
Mineral Carbonation ◽  
Carbon Utilization ◽  
Waste Streams ◽  
Long Term Storage ◽  
Current State ◽  
Critical Issues ◽  
Term Storage ◽  
Change Mitigation

Accelerated carbonation is a carbon utilization option which allows the manufacturing of useful products, employing CO2-concentrated or -diluted emission sources and waste streams such as industrial or other processing solid residues, in a circular economy perspective. If properly implemented, it may reduce the exploitation of virgin raw materials and their associated environmental footprint and permanently store CO2 in the form of Ca and/or Mg carbonates, thus effectively contributing to climate change mitigation. In this perspective article, we first report an overview of the main mineral carbonation pathways that have been developed up to now, focusing on those which were specifically designed to obtain useful products, starting from different alkaline feedstocks. Based on the current state of the art, we then discuss the main critical issues that still need to be addressed in order to improve the overall feasibility of mineral carbonation as a CCUS option, as well as research needs and opportunities.

scholarly journals The Northern Sea Route: The Need and Prospects for Transit of Raw Materials

2020 ◽  
pp. 92-97
Author(s):  
Aleksey Mikhailovich Khorev
Keyword(s):  
Russian Federation ◽  
Raw Materials ◽  
Arctic Region ◽  
The Arctic ◽  
Existing Problems ◽  
Current State ◽  
Northern Sea Route ◽  
The Russian Federation ◽  
Near Future ◽  
The Arctic Region

The prospects and problems of using the Northern sea route for transportation of raw materials are examined. The author makes an attempt to study the current state of the Northern sea route as the most important transport corridor of the Arctic region, and analyzes the existing problems that reduce the economic efficiency of cargo transit along the NSR. The ways to improve the efficiency of transportation of raw materials along the Northern sea route are reviewed. The author assesses the importance of the Arctic region for the Russian Federation as a whole, as well as he points out the need for its development in the near future.

scholarly journals The Effect of Sappanwood Absorbance on Design Decisions

2020 ◽  
pp. 34-42
Author(s):  
Dan Pandapotan ◽  
Imam Djati ◽  
Meirina Triharini ◽  
Yusuf Maulana
Keyword(s):  
Surface Area ◽  
Raw Materials ◽  
Health Benefits ◽  
Design Decisions ◽  
Measurement Results ◽  
Repeated Use ◽  
Product Thickness ◽  
The Impact ◽  
Material Cutting ◽  
Color Texture

Sappan wood contains substances that have health benefits. The community has made use of sappan wood in various forms, such as powder and shavings. In addition, sappan products are found in the form of blocks and spindles. If the product is in the form of blocks or logs, then people can recognize several characteristics of a wood, such as color, texture, hardness and weight. This will be more difficult to do if the product is in the form of powder or shavings. These advantages can be utilized in forms that have a specific purpose, such as the use function and decoration function. The use function can be done by soaking sappan wood using water, at a certain temperature and time. The process will produce a solution with a certain content which can be measured based on the absorbance value. The decoration function can be carried out by forming the sappan wood using the chisel principle, reducing the volume of raw materials. This research was conducted to determine the impact of shape on the concentration of content in sappan wood, so that it produces considerations that can be used in designing a product made from sappan wood. Experiments were carried out on 4 types of treatments, N specimens representing the treatment of repeated use, LPA and LPB specimens representing different surface area treatments, and specimens V representing treatments with different volumes. Each treatment produced a solution which was measured using UV-Vis Spectorphotometry. The measurement results in each specimen solution show the absorbance value can be taken into consideration in designing a product made from sappan wood. The things that need to be considered are the distance between cavities, product thickness and material cutting patterns.

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