Başlık için Maden Mühendisliği Bölümü Koleksiyonu listeleme
Toplam kayıt 60, listelenen: 39-58
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Prediction of cementitious grout take for a mine shaft permeation by adaptive neuro-fuzzy inference system and multiple regression
(Elsevier Science Bv, 2017)Cement grouting is a common technique implemented for permeation and ground improvement in civil and mining engineering projects. Basically, it is the injection of cement and water mixture into a fractured rock mass. Due ... -
Prediction of Top Coal Cavability Character of a Deep Coal Mine by Empirical and Numerical Methods
(Pleiades Publishing Inc, 2018)Longwall top coal caving mining provides high productivity where thick coal seams exist. The study aims to predict the cavability character of the top coal for deep and thick coal seam in Soma lignite basin located at ... -
Production of White Barite from Barite Concentrates of Shaking Tables by Bleaching Process after Magnetic Methods
(Polish Mineral Eng Soc, 2018)Market price of industrial minerals depends on the purity of products, and increases almost exponentially with the decrease in grade of coloring impurities. Therefore, this work was conducted to investigate the applicability ... -
Quartz bleaching by oxalic acid: Relationship between rejection rate of impurities and color response
(Baski, 2019)Quartz beneficiation has been applied to meet market requirements by physical and/or chemical methods. Chemical beneficiation has long been investigated by inorganic (e.g. sulfuric acid) and organic (e.g. oxalic acid) ... -
Quartz bleaching by phosphoric acid: An investigation on the relationship between Fe rejection rate and colour response
(Pergamon-Elsevier Science, 2021)Advances in high-tech industries have led to increasing the demand for highly pure quartz. Research on thebeneficiation of quartz has been conducted to meet market requirements by different processes including hydrometal ... -
A rational comparison of groove deepening to relief cutting in terms of tool spacing with drag tools
(TMMOB Maden Muhendisleri Odasi, 2017)This paper mentions a rational comparison between relief cutting and groove deepening for tool lacing design of partial-face cutting machines employed for mechanical excavations of rocks, coal and stones. The comparison ... -
Redox behavior of galena in alkaline condition
(Springer Heidelberg, 2018)Electrochemical potential determines types of redox products formed on electrically conducting minerals like galena, which might manipulate process efficiency applied on the target mineral. Therefore, electrochemical ... -
Regression Analysis and Neural Network Fitting of Rock Mass Classification Systems
(2018)Commonly used rock mass classification systems, Rock Mass Rating (RMR), Q-System, and Geological Strength Index (GSI) were used as input for simple regression and Neural-Network fitting. The relationship between the ... -
Rejection of iron coloring impurities of quartz ore by sulfuric acid bleaching
(Baski, 2019)Quartz purification by bleaching methods has taken great interest for several decades both for conventional and high technology applications like production of optical fibers, construction of silicon cells and semiconductors, ... -
Relating rock mass properties with Lugeon value using multiple regression and nonlinear tools in an underground mine site
(Springer Heidelberg, 2019)The Lugeon test is one of the commonly applied field methods for measuring hydraulic conductivity of a rock mass. Understanding hydraulic conductivity is especially necessary when groundwater is present, as it has a direct ... -
Relations between some quantitative petrographic characteristics and mechanical strength properties of granitic building stones
(Pergamon-Elsevier Science Ltd, 2011)[No abstract available] -
SEDİMANTER ZAYIF KAYA KÜTLESINDE REÇİNELİ HALAT SAPLAMALARIN UYGULAMA PARAMETRELERİNİN ÇEKME DAYANIMINA ETKİSİ
(Baski, 2019)Cable bolts which are efficiently used in mining operations, have become widespread in local underground coal mines. Presentation of information about the cable bolt performance in sedimentary units encountered in local ... -
Separation of huntite and hydromagnesite from magnesite in combination of physicochemical treatment and size reduction
(Elsevier Science Bv, 2019)Huntite and hydromagnesite are important minerals in the synthesizing of fire-safe composites. They are mostly not pure and associated with gangue minerals like magnesite, dolomite, aragonite and calcite. In this study, ... -
SOMA KÖMÜR HAVZASINDA BIR YERALTI İŞLETMESİNDE ALT TABAN YOLU DESTEK SİSTEMİNİN İYİLEŞTİRİLMESİ
(Baski, 2019)Maingate and tailgate entries bearing paramount importance for the underground coal mines where the longwall method is employed, cause many down-times when they are exposed to excessive deformation. In order to reduce the ... -
Statistical evaluation of olivine flotation in the presence of dextrin
(TMMOB Maden Muhendisleri Odasi, 2017)Olivine (Mg,Fe)2SiO4) is an important industrial raw material especially for metallurgical processes such as foundry sand, slag conditioning, production of refractories and iron ore pellets. Olivine alters throughout the ... -
Studies on increasing the performance of chain saw machines for mechanical excavation of marbles and natural stones
(Pergamon-Elsevier Science Ltd, 2014)Slow cutting rate, tool wear and shallow depth of cuts are important practical issues observed with the commercially available chain saw machines. This paper is concerned with increasing the performance of current chain ... -
Suggested methods for optimum rotative motion of point attack type drag tools in terms of skew angles
(Taylor & Francis Ltd, 2020)Rotation of point attack picks in their tool holders is of crucial importance for an efficient performance of machines used for tunnelling and underground excavations of rocks and coal. With current machines, skew angle ... -
Surface Characterization of Oleic Acid Coated Marble Dust
(Polish Mineral Eng Soc, 2020)Calcite, being the most abundant mineral on earth crust, have wide application areas especially in polymer industry as a micronized functional filler material. It is hydrophilic in natural form, and made hydrophobic after ... -
Susceptibility to cyanidation of pyrrhotite-associated gold in pyrite calcines from (non)oxidizing roasting environments
(Elsevier Ltd, 2023)The susceptibility to leaching of pyrrhotite-associated gold in roasted pyrite calcines was studied, with emphasis on the effects of the roasting environment and galvanic contacts under cyanidation conditions. The first ... -
TANNIC ACID AS A HYDROPHOBICITY MODIFIER FOR GALENA IN THE PRESENCE OF METAL IONS
(Oficyna Wydawnicza Politechniki Wroclawskiej, 2017)This study was performed to determine the effect of tannic acid (TA) on hydrophobicity of galena using Taguchi's design of experimental methodology. Roles of metal ions, dithiophosphinate (DTPI) concentration, and conditioning ...