Başlık için Madencilik ve Maden Çıkarma-Makale Koleksiyonu listeleme
Toplam kayıt 33, listelenen: 1-20
-
Application of generalized regression neural networks in predicting the unconfined compressive strength of carbonate rocks
(Springer Wien, 2012)Measuring unconfined compressive strength (UCS) using standard laboratory tests is a difficult, expensive, and time-consuming task, especially with highly fractured, highly porous, weak rock. This study aims to establish ... -
Application of soft computing methods in predicting uniaxial compressive strength of the volcanic rocks with different weathering degree
(Springer Heidelberg, 2020)Uniaxial compressive strength (UCS) of rock material is very important parameter for rock engineering applications such as rock mass classification, numerical modelling bearing capacity, mechanical excavation, slope stability ... -
Application of Support Vector Machines and Relevance Vector Machines in Predicting Uniaxial Compressive Strength of Volcanic Rocks
(Pergamon-Elsevier Science Ltd, 2014)The uniaxial compressive strength (UCS) of intact rocks is an important and pertinent property for characterizing a rock mass. It is known that standard UCS tests are destructive, expensive and time-consuming task, which ... -
Beneficiation of quartz waste by flotation and by ultrasonic treatment
(Oficyna Wydawnicza Politechniki Wroclawskiej, 2011)Quartz is one of the most important industrial minerals used in glass and ceramic industries and high quality quartz are preferred. Impurities from quartz are usually removed by magnetic separation or flotation. This study ... -
Classification of dimension stone wastes
(Springer Heidelberg, 2012)For countries in which the stone industry is well developed, opposition to quarry and plant waste is gradually increasing. The primary step for waste control and environmental management is to define the problem of concern. ... -
A comparative study on the estimation of shear strength of rock masses using rock SSPC system and Hoek-Brown criterion
(2011)The shear strength of rock masses has vital importance for geotechnical projects such as slope stability, foundation and tunnels. The shear strength of the jointed rock mass can be estimated by different methods including ... -
Concentration of K-feldspar from a pegmatitic feldspar ore by flotation
(Elsevier Science Bv, 2006)Abundant reserves of Na-feldspar (albite) and K-feldspar (orthoclase or microcline) are found in granites, syenite, tracite and pegmatites. As both feldspar minerals have similar chemical structure and physicochemical ... -
Determination of grindability characteristics of zeolite
(Oficyna Wydawnicza Politechniki Wroclawskiej, 2011)In this study grindability of zeolite was studied. The work index of zeolite was determined for three different test sieves. In terms of work indexes, there was insignificant difference between the test sieves. Additionally, ... -
Differential separation of albite from microcline by monovalent salts in HF medium
(Soc Mining Metallurgy Exploration Inc, 2003)Na-feldspar (albite) and K-feldspar (microcline or orthoclase) are major feldspar minerals with identical crystal structures and physico-chemical properties. Flotation appears to be a unique method of separating these ... -
Effect of crystallinity and surface silanol groups on rheological properties of different sepiolites
(Oficyna Wydawnicza Politechniki Wroclawskiej, 2022)In this study, differences in the rheological properties of three different types of brown sepiolites (K1, K2, and K3) along with one beige (B) sepiolite with different physicochemical properties were explained based on ... -
Effect of H2O2 and nash addition to change the electrochemical potential in flotation of chalcopyrite and pyrite minerals
(Taylor & Francis Ltd, 2011)The floatability of sulfide minerals can be affected by the redox conditions on particle surface and in the pulp and can be used as one of the parameters for the separation of sulfide minerals. In the present study, the ... -
Effects of bivalent salts on the flotation separation of Na-feldspar from K-feldspar
(Pergamon-Elsevier Science Ltd, 2003)Despite similarities in the physical and physico-chemical properties of Na- and K-feldspars, their flotation separation with monovalent ions exhibited a reasonable success. Further studies have been therefore initiated to ... -
En küçük kareler destek vektör makineleri (LS-SVM) kullanarak kaya malzemesi tanjant elastisite modülünün tahmini
(2016)Kaya malzemesi tanjant elastisite modülü kaya mühendisliği tasarım problemlerinin çözümünde önemli bir parametredir. Elastisite modülünün standart laboratuvar deneyleriyle belirlenmesi zor, pahalı ve zaman alıcı bir iştir. ... -
Ercan taşocağı delme patlatma verimliliğinin değerlendirmesi
(2015)Taşocağı açık işletmeciliği kazı, basamak oluşturma, delme-patlatma ve yükleme-taşıma yöntemiyle gerçekleştirilmektedir. Taşocağı işletmeciliğinin ilk adımını kazı, sonraki adımını ise kırma eleme oluşturmaktadır. Kırıcıya ... -
Evaluation of Turkish bentonite for removal of dyes from textile wastewaters
(Oficyna Wydawnicza Politechniki Wroclawskiej, 2012)Removal of reactive dyes from textile industry wastewaters is a great economic and environmental challenge. In this study, systematic adsorption tests were carried out using natural and modified bentonites to remove a ... -
Interaction of sodium ions with feldspar surfaces and its effect on the selective separation of na- and k-feldspars
(Taylor & Francis Inc, 2012)K-feldspar and Na-feldspar exhibit similar mineralogical, chemical and surface properties. Froth flotation is known to be the only technique to enable their separation. Our earlier studies revealed a good selectivity in ... -
Machine learning models to estimate the elastic modulus of weathered magmatic rocks
(Springer, 2021)In recent years, several soft computing models have been proposed to estimate the elastic modulus of magmatic rocks. However, there are lacks in models that consider the different weathering degrees in determining the ... -
Madenciliğin yerel ekonomilere katkısı ve bazı sektörlerle karşılaştırmalı analizi: Balıkesir örneği
(2016)Madencilik, insanoğlunun ilk uğraş alanıdır. İnsanoğlunun kayaçları tanıması ve işlemesi, onun mineralleri ve madenleri de tanımasına ve işlemesine giden yolu da açmıştır. Madencilik sektörü, Türkiye'nin sanayileşmesi, ... -
Modeling of tensile strength of rocks materials based on support vector machines approaches
(Wiley, 2013)In the predicting of geological variables, artificial neural networks (ANNs) have some drawbacks including possibility of getting trapped in local minima, over training, subjectivity in the determining of model parameters ... -
Occurrence and properties of natron in the Miocene lacustrine Beypazari basin, Turkey
(E Schweızerbartsche Verlags, 2003)Natron, Na2CO3 . 10H(2)O, is a rarely forming evaporite mineral, which precipitates under the unique physicochemical conditions of Na wt.%, temperature and HCO3/CO3. Natron is observed in the upper parts of the lower trona ...
