Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Institution
- Keyword
-
- Acidophilic associations of iron-sulfur-oxidizing bacteria (2)
- Activated carbon (2)
- Bacterial leaching (2)
- Cinder (2)
- Copper (2)
-
- Flotation concentrate (2)
- Geochemical activity (2)
- Gold ores (2)
- Gold. (2)
- Hydrometallurgy. (2)
- Microflora (2)
- Reagents (2)
- Waste ores (2)
- Abrasive wear (1)
- Aliasing Effect (1)
- Aqua regia (1)
- Ash (1)
- Ball mill performance. (1)
- Calcine (1)
- Carbide (1)
- Carbide phase (1)
- Carbon dumps (1)
- Cellulose dinitrate. (1)
- Cellulose mononitrate (1)
- Cellulose nitrates (1)
- Chemical composition (1)
- Circulation load (1)
- Coal (1)
- Coal fields (1)
- Coal mining subsidence area; sustainable development; green mining; comprehensive management countermeasures (1)
Articles 1 - 21 of 21
Full-Text Articles in Other Engineering
Research On Color Matching Model For Color Qr Code, Fei You Dr., Qingli Zhang Dr., Bruce Welt Prof.
Research On Color Matching Model For Color Qr Code, Fei You Dr., Qingli Zhang Dr., Bruce Welt Prof.
Journal of Applied Packaging Research
Objective To provide a faster and more effective way for consumers to obtain the additional information of product, the color quick response (QR) code is printed on product packaging. To improve decoding accuracy of color QR codes. This paper constructs a color matching model with good performance, which restrains aliasing between two color encoding modules of color QR code. Methods By comparing and analyzing the character of several typical color spaces, the HSV color space was chosen for its favorable attributes. Based on the enlarging capacity principle of color QR code and the maximum rule of relative Euclidean distance, 2 …
Prospects Of Development Of Deposits Of Nonmetallic Minerals Kyzylkum Such As Quartz Sands, A.U. Mirzaev, S.V. Pochtoviy, F.F. Istablaev, Sh.R. Kurbonova
Prospects Of Development Of Deposits Of Nonmetallic Minerals Kyzylkum Such As Quartz Sands, A.U. Mirzaev, S.V. Pochtoviy, F.F. Istablaev, Sh.R. Kurbonova
Gorniy vestnik Uzbekistana
Quartz sand plays essential role in the construction and glass industry, but construction organizations of Uzbekistan has not paid due attention to use quartz sand from domestic deposits. This article provides information about the prospects of the development of deposits of quartz sand in Kyzylkum, and also presents a project of a factory for the enrichment of Dzheroy sands with a capacity of 1 thousand tons per day of sand concentrate being developed by the Navoi branch of the Academy of Sciences of the Republic of Uzbekistan using a washing device as a washing machine pulsating columns.
Production Of Nitric Acid Ethers Of Cellulose In The Environment Of Low Concentrated Nitric Acid, H.Ch. Mirzakulov, T.T. Safarov, H.S. Beknazarov, G.O. Mamazhanov
Production Of Nitric Acid Ethers Of Cellulose In The Environment Of Low Concentrated Nitric Acid, H.Ch. Mirzakulov, T.T. Safarov, H.S. Beknazarov, G.O. Mamazhanov
Gorniy vestnik Uzbekistana
The article proposes a new method for producing cellulose nitrate esters by pretreatment of cellulose with low concentrated nitric acid. Optimal conditions for the esterifi- cation reaction have been developed. Some properties of mono- and di- and trisubstituted nitrates were studied: degree of substitution, solubility, degree of polymerization, IR spectra, X-ray diffraction patterns are given.
Volcanism Role In Formation Of Burned Breeds On Brown-Coal Fields Southern Fergana Coal Basin, A.E. Vorobev, O.Sh. Shamshiev, N.T Tolobaeva
Volcanism Role In Formation Of Burned Breeds On Brown-Coal Fields Southern Fergana Coal Basin, A.E. Vorobev, O.Sh. Shamshiev, N.T Tolobaeva
Gorniy vestnik Uzbekistana
Are shown a volcanism role in formation of burned breeds on brown-coal fields of the Southern Fergana coal basin (Kyrgyzstan). So far burned breeds traditionally were considered as products of thermal transformation clay, clay алевритовых breeds, formed as a result of the underground fires of layers of coal. However, the complex of geological factors revealed recently when studying burned breeds, allows to assume their origin not only due to the underground fires of layers of coal, but also and a vol- canogenic and sedimentary way. Field works included supervision, drawing up litologo-petrographic, mineral and geochemical, structural and lithologic cuts with …
Development Of Technology For Processing Of Sulfide Ore Deposits Of Kokpatas And Daugyztau., K.S. Sanakulov, H. Ahmedov, I.S. Nurmukhamedov
Development Of Technology For Processing Of Sulfide Ore Deposits Of Kokpatas And Daugyztau., K.S. Sanakulov, H. Ahmedov, I.S. Nurmukhamedov
Gorniy vestnik Uzbekistana
In clause are given the short review on material structure persistent sulfide gold containing ores of deposits Kokpatas and Daugiztau. Also in clause the results of laboratory researches executed in SE "IMR" on study of mineral structure and enrichment of tests of ores of deposits Kokpatas and Daugiztau, and also pyro- and hydrometallurgical processing of the received concentrates are resulted. At flotation enrichment of ores an opportunity of application local reagents is considered. At cyaniding, the rest of alkaline processing the burned material of a mixed concentrates of the deposits, received from ores, Kokpatas and Daugiztau the extraction of gold …
Determination Of The Suitability Of Balance Ores "Almalyk Mmc" Jsc To Processing By Method Biodinstellation, M.G. Sagdieva, Sh. T. Khidirov, A.M. Mavzhudova, R.Ch. Omonov
Determination Of The Suitability Of Balance Ores "Almalyk Mmc" Jsc To Processing By Method Biodinstellation, M.G. Sagdieva, Sh. T. Khidirov, A.M. Mavzhudova, R.Ch. Omonov
Gorniy vestnik Uzbekistana
Over the 70 years of operation, Almalyk Mining and Metallurgical Combine (AGMK) has accumulated 155 million tons of waste ore and 1,350 million tons of flotation tailings of a copper-processing plant in the territory of the Almalyk region, which occupy huge areas and pose an environmental hazard. The objects of research at the Almalyk ore field were: A-4 blade (oxidized ore), A-7 (sulfide ore), 9a (oxidized ore), and open-pit ore of Kalmakyr deposit. The paper presents the microflora of all the studied dumps, from which the most active acidophilic associations of iron-sulfur-oxidizing bacteria were selected. Laboratory studies have been carried …
Mechanism Of Fluid Migration In Reservoirs-Collectors, A.E. Vorobev, Z.T. Martin, K.A. Vorobev
Mechanism Of Fluid Migration In Reservoirs-Collectors, A.E. Vorobev, Z.T. Martin, K.A. Vorobev
Gorniy vestnik Uzbekistana
The mechanism of fluid migration in stratium - reservoirs is revealed. The relevance of the study of the mechanism of migration of fluids is determined by the high (up to 90%) water cut of recoverable oil. It has been established that the migration of water and oil is mainly influenced by the type, nature and parameters of their interaction with host rocks, which have different values of wettability and sorption capacity. The amount of wettability is influenced by the pH values of water and oil. It is shown that pores and capillaries often have a mixed type of wettability, depending …
Determination Of The Suitability Of Balance Ores "Almalyk Mmc" Jsc To Processing By Method Biodinstellation, M.G. Sagdieva, Sh. T. Khidirov, A.M. Mavzhudova, R.Ch. Omonov
Determination Of The Suitability Of Balance Ores "Almalyk Mmc" Jsc To Processing By Method Biodinstellation, M.G. Sagdieva, Sh. T. Khidirov, A.M. Mavzhudova, R.Ch. Omonov
Gorniy vestnik Uzbekistana
Over the 70 years of operation, Almalyk Mining and Metallurgical Combine (AGMK) has accumulated 155 million tons of waste ore and 1,350 million tons of flotation tailings of a copper-processing plant in the territory of the Almalyk region, which occupy huge areas and pose an environmental hazard. The objects of research at the Almalyk ore field were: A-4 blade (oxidized ore), A-7 (sulfide ore), 9a (oxidized ore), and open-pit ore of Kalmakyr deposit. The paper presents the microflora of all the studied dumps, from which the most active acidophilic associations of iron-sulfur-oxidizing bacteria were selected. Laboratory studies have been carried …
Development Of Technology For Processing Of Sulfide Ore Deposits Of Kokpatas And Daugyztau., K.S. Sanakulov, H. Ahmedov, I.S. Nurmukhamedov
Development Of Technology For Processing Of Sulfide Ore Deposits Of Kokpatas And Daugyztau., K.S. Sanakulov, H. Ahmedov, I.S. Nurmukhamedov
Gorniy vestnik Uzbekistana
In clause are given the short review on material structure persistent sulfide gold containing ores of deposits Kokpatas and Daugiztau. Also in clause the results of laboratory researches executed in SE "IMR" on study of mineral structure and enrichment of tests of ores of deposits Kokpatas and Daugiztau, and also pyro- and hydrometallurgical processing of the received concentrates are resulted. At flotation enrichment of ores an opportunity of application local reagents is considered. At cyaniding, the rest of alkaline processing the burned material of a mixed concentrates of the deposits, received from ores, Kokpatas and Daugiztau the extraction of gold …
Comprehensive Management Countermeasures To Coal Mining Subsidence Areas, Bingnan Hu
Comprehensive Management Countermeasures To Coal Mining Subsidence Areas, Bingnan Hu
Gorniy vestnik Uzbekistana
The ecological environment in mining area had been damaged seriously by mining subsidence, which made directly influence on the sustainable development of mining industry. The current situations and existing problems of the coal mining subsidence areas in china were analyzed. Three different management stages are divided, including pre-mining, during-mining, and post-mining, based on mining time sequence. After analysis, effective comprehensive management countermeasures were provided systematically for subsidence control, combined with the related laws, mining technology and management technology on coal mining subsidence areas.
Comparative Study Of The Structure Of Castings Fromwear Resistant Chuguns, Ganiyev Y.U., Jumaev Akhmat, Komilov J.M., Khudoyberdiyev R.Kh.
Comparative Study Of The Structure Of Castings Fromwear Resistant Chuguns, Ganiyev Y.U., Jumaev Akhmat, Komilov J.M., Khudoyberdiyev R.Kh.
Gorniy vestnik Uzbekistana
In this article, white wear-resistant cast irons of the grades 280H29NL and 300H32N2M2TL are investigated, the chemical compositions and their structures are compared. It has a composition close to eutectic, but is prone to brittle chipping. At high magnifications in the metal base, the places of chipping are found, and where the chipping has not yet passed, gray sulphides are clearly visible. The carbide sizes of the cast irons under investigation vary widely from 8.6 μm to 31 μm.
Improvement Of Scheme Of Drug Training At Hydrometallurgical Plant №2, K. Sanakulov, Ergashev Ulugbek Abdurasulovich, Tkachenko Evgeniy, Vasilyonok O.P.
Improvement Of Scheme Of Drug Training At Hydrometallurgical Plant №2, K. Sanakulov, Ergashev Ulugbek Abdurasulovich, Tkachenko Evgeniy, Vasilyonok O.P.
Gorniy vestnik Uzbekistana
The article discusses the issues of improvement of grinding schemes, aimed at improving the productivity of ore preparatory redistribution on the example of the current production of GMZ-2. Based on the analysis of the results of testing mill blocks, the reserves for increasing their productivity were revealed. The results of industrial tests and the introduction of an improved scheme on an industrial scale.
Conceptual Bases For Solving The Problems Of Processing Technological Raw Materials, K.S. Sanakulov
Conceptual Bases For Solving The Problems Of Processing Technological Raw Materials, K.S. Sanakulov
Gorniy vestnik Uzbekistana
Currently in the world, in the mining and metallurgical industry there is a forced need to reduce the share of processing ores and increase the share of previously accumulated industrial wastes. A phased concept of the use of man-made waste is proposed. At the first stage, the existing industrial wastes are considered as resources and are subject to complete processing with the minimum amount of new waste. At the second stage, the task is to develop non-waste technologies. The example of Uzbekistan (Navoi and Almalyk MMC) shows one of the possible options for the integrated use of industrial waste for …
New Method For Cleaning And Filtration Of Liquid Sulfur, Ashurov O.T., Tureyev F.E., Karimov A.K.
New Method For Cleaning And Filtration Of Liquid Sulfur, Ashurov O.T., Tureyev F.E., Karimov A.K.
Gorniy vestnik Uzbekistana
The article presents the results of sulfur purification research with an inorganic adsorbent released as waste during the production of vanadium pentoxide from spent vanadium catalyst. High purification of liquid sulfur from organic impurities, ash and acids is achieved by treating the molten sulfur with an inorganic adsorbent, followed by separating the purified sulfur by filtration. The silicate base of the spent vanadium catalyst is used as the inorganic sorbent after vanadium pentoxide is removed from it. The consumption of the silicate base of the spent vanadium catalyst after removal of vanadium pentoxide from it is regulated in the range …
Forward Osmosis Flow Rate Differential Using Different Osmotic Agents, John M. Trzinski
Forward Osmosis Flow Rate Differential Using Different Osmotic Agents, John M. Trzinski
Beyond: Undergraduate Research Journal
Life support is one of the most vital systems flown on manned spaceflight missions. The systems currently used are large, heavy, inefficient, and power consuming in an environment that requires nearly perfect conditions to function. Forward Osmosis (FO) is a form of filtration that uses the natural properties of water and concentration gradients to filter water without the need for any electricity. An experiment was conducted during the Embry Riddle Summer 2018 study abroad to the LUNARES research station in Piła, Poland. This experiment explored how the flow rate of water through a FO filtration system could be affected by …
Network Traffic Behavioral Analytics For Detection Of Ddos Attacks, Alma D. Lopez, Asha P. Mohan, Sukumaran Nair
Network Traffic Behavioral Analytics For Detection Of Ddos Attacks, Alma D. Lopez, Asha P. Mohan, Sukumaran Nair
SMU Data Science Review
As more organizations and businesses in different sectors are moving to a digital transformation, there is a steady increase in malware, facing data theft or service interruptions caused by cyberattacks on network or application that impact their customer experience. Bot and Distributed Denial of Service (DDoS) attacks consistently challenge every industry relying on the internet. In this paper, we focus on Machine Learning techniques to detect DDoS attack in network communication flows using continuous learning algorithm that learns the normal pattern of network traffic, behavior of the network protocols and identify a compromised network flow. Detection of DDoS attack will …
Development Of A Technology For Obtaining An Affined Paladium Powder From Fulfilled Electrolytes, A.Kh. Khursanov, A.S. Khasanov, B.R. Vohidov
Development Of A Technology For Obtaining An Affined Paladium Powder From Fulfilled Electrolytes, A.Kh. Khursanov, A.S. Khasanov, B.R. Vohidov
Gorniy vestnik Uzbekistana
The article discusses the processing of waste solutions of the AGMK copper plant, and as a result of research, a technology has been developed for producing refined palladium in powder and in ingot. Also, cleaning methods for reducing impurities in the composition of refined palladium are given. The results of aqua regia dissolution, advantages, leaching parameters are analyzed and methods for the selective precipitation of palladium from solutions are given, the maximum degree of purification of palladium using low-cost and simple technologies is substantiated, and to achieve high economic performance.
Development Of Self-Ignition Mechanisms And Conditions Carbon Deposits And Terricons, A.E. Vorobev, R.B. Dzhimieva
Development Of Self-Ignition Mechanisms And Conditions Carbon Deposits And Terricons, A.E. Vorobev, R.B. Dzhimieva
Gorniy vestnik Uzbekistana
In this article, the mechanisms of spontaneous combustion of coal and coal-bearing rocks, as well as physical and mathematical modeling of the development of processes and the source of spontaneous combustion in the local zone of the coal-rock massif, are studied. predict the occurrence and prevention of these very dangerous phenomena.
Analysis Of Ash Fireplant Slates Of Deposit Sangruntau And The Possibility Of Their Enrichment, K.S. Sanakulov, O.F. Petukhov, B.T. Ruziev, U.Z. Sharafutdinov
Analysis Of Ash Fireplant Slates Of Deposit Sangruntau And The Possibility Of Their Enrichment, K.S. Sanakulov, O.F. Petukhov, B.T. Ruziev, U.Z. Sharafutdinov
Gorniy vestnik Uzbekistana
This article provides laboratory research data on the analysis of the ash of combustible shale from the Sangruntau deposit and the possibility of their enrichment. Magnetic enrichment of the ash of combustible shale was carried out in order to determine the yield of the magnetic fraction, determine the chemical composition of the products of magnetic separation, determine the extraction and the enrichment factor for the main elements. When gravitational enrichment of the ash of combustible shale gold almost completely goes into the gravity concentrate. Gravitational enrichment of rhenium, vanadium, copper, zinc, uranium does not occur.
Design Thinking As A Framework For Teaching Packaging Innovation, Javier De La Fuente, Irene Carbonell, Mary Laporte
Design Thinking As A Framework For Teaching Packaging Innovation, Javier De La Fuente, Irene Carbonell, Mary Laporte
Journal of Applied Packaging Research
Students in scientific/technical-oriented disciplines struggle with achieving good levels of innovation when exposed to design problems. Research indicates the need for implementing alternative pedagogical approaches in technical curricula that enhance students’ creative skills. The purpose of this study was to evaluate the implementation of a cross-disciplinary pedagogical approach with a focus on teaching innovation in the field of packaging engineering at a university in the United States. A Design Thinking Project-Based Learning (DTPBL) approach was used to improve the levels of innovation in student work. Its outcomes were compared with those of a Traditional Project-Based Learning (TPBL) approach. The implementation …
The Role Of Stakeholders After Development Of The Baseline Scheduled Maintenance Program, Danita Baghdasarin
The Role Of Stakeholders After Development Of The Baseline Scheduled Maintenance Program, Danita Baghdasarin
International Journal of Aviation, Aeronautics, and Aerospace
The principles of systems engineering can be applied to various aviation systems. This position paper emphasizes the importance of stakeholder collaboration in the various stages of the system life cycle, where the system is the aircraft scheduled maintenance program and the stakeholders are the constituents of the Industry Steering Committee (ISC): regulatory authorities, original equipment manufacturers (OEMs), and operators. The author discusses accidents with maintenance-related contributing factors, and highlights opportunities to improve coordination among stakeholders in order to ensure safe and effective maintenance.