Department of Mining Engineering, Article

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Altun, Naci Emre (38)
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Recent Submissions

Simulation-based optimization of workforce configuration for multi-division maintenance departments
Gölbaşı, Onur; Sahiner, Sahin Furkan (2024-02-01)
The configuration of human resources in a production company that determines the number of employees at different technical or nontechnical competencies engaged in various operational tasks should be constructed to meet th...
Molecular dynamics simulations of the solubility and conformation change of chitosan grafted polyacrylamide: Impact of grafting rate
Zhao, Wei; Zou, Wenjie; Liu, Fengyang; Zhou, Fang; Altun, Naci Emre (2024-01-01)
Graft modification is an effective approach to improve the water solubility and molecular weight of chitosan. This work investigated the effect of grafting rate on water solubility of chitosan-grafted polyacrylamide (Chi-g...
Water footprint assessment of mining and processing of gold in Turkey
Guney, Emre; Demirel, Nuray (2024-01-01)
This study aims to identify critical points by calculating the water footprint (WF) of a mine and assessing the environmental impact of this water usage. Utilising the Water Footprint Assessment (WFA) methodology for criti...
Simulation of blast‑induced ground vibrations using a machine learning‑assisted mechanical framework
Yardımcı, Ahmet Güneş; Erkayaoğlu, Mustafa (2023-10-01)
Blasting, as a cost-effective method of rock breakage, assures a size distribution for efficient material handling in surface andunderground mining. An immense level of energy released from explosive charge in blast holes ...
Distinct Element Analysis for the Effectiveness of Preliminary Coal Pillar Rib Support Systems Based on the Strength Reduction Method Using Coal Mass Constitutive Model
Guner, Dogukan; Sherizadeh, Taghi; Nowak, Samuel; Karadeniz, Kutay Emre; Sunkpal, Maurice (2023-10-01)
Despite numerous empirical, numerical, and hybrid studies conducted on the subject of coal rib failure, mine fatalities related to rib failures continue to occur at around 1.5 per year between 2009 and 2021. To date, a sta...
Numerical Simulation of Stress Concentrations on Pillars in a Typical Longwall Mine
Yardımcı, Ahmet Güneş (2023-06-01)
Kömür, zengin kaynaklar ve maliyet etkin üretim avantajları sunması nedeniyle günümüzde halen en sık kullanılan ve genişleyen enerji talebini karşılamak üzere termik santrallerde değerlendirilen bir yakıttır. Uzunayak made...
Dynamic Response Analysis of a Reinforced Concrete Structure in Underground Coal Mine Environment with Various Strata Conditions
Karadeniz, Kutay Emre; Nowak, Samuel; Guner, Dogukan; Sherizadeh, Taghi (2023-04-01)
Seals and build-in-place (BIP) refuge alternatives (RAs) are two main underground structures to isolate an area from the active working zones with different purposes. While seals are used to prevent methane gas that seeps ...
Conversion of cleaned Oltu-stone wastes (a semi-precious stone) into a valuable product using binderless agglomeration
Bawani, Muhammad Raheel; Arol, Ali İhsan; TOZSİN, Gülşen; Torun, Abdulvahit (2023-01-01)
Oltu-stone, a semi-precious stone found in Erzurum's Oltu area, is commonly utilized in the creation of decorative ornaments. More than 90% of the Oltu-stone mined is classified as Oltu-stone waste, consisting of poor Oltu...
Forming superhydrophobic surfaces for mineral separation at water pulsating jigs
CAMALAN, MAHMUT; Arol, Ali İhsan (2022-10-20)
© 2022 Elsevier B.V.Superhydrophobic particles experience less drag force at settling in water. This is because these particles possess air layers around their surfaces, which induce slip at the air-water interface. This s...
Joint roughness profiling using photogrammetry
Saricam, Ismail Turgut; Öztürk, Hasan (2022-08-01)
We propose an automated camera setup for photogrammetric roughness analysis in the laboratory environment. The developed fast and low-cost automation setup can be very useful for tedious and laborsome manual field logging ...
Developing serious games for CBRN-e training in mixed reality, virtual reality, and computer-based environments
Altan, Burak; Gürer, Servet; Alsamarei, Ali; Demir, Damla Kıvılcım; Düzgün, H. Şebnem; Erkayaoğlu, Mustafa; Sürer, Elif (2022-07-01)
© 2022 Elsevier LtdIn the last decade, chemical, biological, radioactive, nuclear, and explosive (CBRN-e) attacks have become severe risks to countries, prompting connected parties to prioritize CBRN-e training. CBRN-e tra...
Tensile mode fracture toughness experiments on andesite rock using disc and semi-disc bend geometries with varying loading spans
Tutluoglu, Levent; Batan, Ceren; Aliha, M.R.M. (2022-06-01)
Purpose of this research is to investigate the effect of loading span on mode I fracture toughness for tests conducted by three-point bend geometries. Mode I fracture toughness tests were conducted on Ankara Golbasi Andesi...
Generic creep behavior and creep modeling of an aged surface support liner under tension
Guner, D.; Gölbaşı, Onur; Öztürk, Hasan (2022-04-01)
Polymer-based materials have been motivated to be an alternative support system element in the mining/tunneling industry due to their logistic and geotechnical benefits. Thin spray-on liner (TSL), a term to define the appl...
Modelling of continuous centrifugal gravity concentrators using a hybrid optimization approach based on gold metallurgical data
Sakuhuni, Givemore; Altun, Naci Emre; Klein, Bern (2022-03-30)
Conventional optimization procedures for Continuous Centrifugal Gravity Concentrators (CCGCs) impose a priori weighting on objectives and results in a single optimum point, thereby failing to exploit the competing grade/re...
Effects of abandoned coal mine on the water quality
Tozsin, Gülşen; Arol, Ali İhsan; Duzgun, Sebnem; Soydan, Hilal; Torun, Abdulvahit (2022-02-01)
Improving effective strategies to control acid mine drainage (AMD) in abandoned mine areas is a significant challenge because of water quality issues. AMD is a serious water pollution problem. The water in the area where t...
Preliminary assessment of spray coating, solution-immersion and dip coating to render minerals superhydrophobic
Camalan, Mahmut; Arol, Ali İhsan (2022-01-01)
Achieving hydrophobic surfaces on mineral particles is an active research topic in mineral processing. The conventional technique for achieving good hydrophobicity is to mix mineral particles in solutions of organic salts ...
A spare parts inventory optimization study in mining
Şenses, Sena; Gölbaşı, Onur; Bakal, İsmail Serdar (2022-1-01)
Spare parts inventory management is of vital importance in maintaining high equipment availability at minimum cost, especially for industries utilizing fully mechanized systems and aiming mass and continuous production suc...
Comparison of flash flotation and gravity separation performance in a greenfield gold project
Erkan, Emre; EKMEKÇİ, ZAFİR; Altun, Naci Emre (2022-01-01)
Recovery of gold and gold-containing sulfide mineral particles requires multiple-stage recovery processes starting from the grinding circuits to avoid over-grinding of the liberated gold particles. Due to high density, the...
Secondary Iron Mineral Detection via Hyperspectral Unmixing Analysis with Sentinel-2 Imagery
Soydan, Hilal; Koz, Alper; Duzgun, H. Sebnem (2021-09-01)
The exposition of minerals to oxygen as well as non-treated tailings in mining activities alter the balance of the ecosystem, specifically leading to the generation of acidic solutions in the presence of sulfidic minerals....
Madencilikte bir yedek parça envanter optimizasyonu çalışması
Şenses, Sena; Gölbaşı, Onur; Bakal, İsmail Serdar (2021-09-01)
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