Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Hojjat HOSSEINZADEH GHAREHGHESHLAGH"'
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 38, Iss 1, Pp 69-82 (2023)
Grinding aids are materials that are added to cement mixtures to improve the characteristics of the cement or increase the efficiency of the milling systems or both in the clinker grinding (finish grinding) stage. In this study, the effects of four g
Externí odkaz:
https://doaj.org/article/f6b0a5c98fe64e3d9776989eaf2be27b
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 37, Iss 2, Pp 123-135 (2022)
The amount of comminution or fineness of minerals in a mill can be described by various parameters, the most important of which is d80 (80% passing size). The purpose of this study is to investigate and simulate the optimal operating conditions of a
Externí odkaz:
https://doaj.org/article/f5dc0c67c9ab4910affb89d931c415be
Autor:
Sajjad Chehreghani, Mojtaba Yari, Amir Zeynali, Behzad Nemati Akhgar, Hojjat Hosseinzadeh Gharehgheshlagh, Mahsa Pishravian
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 36, Iss 1, Pp 37-47 (2021)
In this research, dissolution of chalcopyrite concentrate is modelled and optimized using Response Surface Methodology (RSM). Also, effective parameters in the leaching process such as the amount of pyrite, silver ions, redox potential and initial co
Externí odkaz:
https://doaj.org/article/42333c2ac25f41c799c4c7c6224c35e5
Autor:
Sina Shaffiee Haghshenas, Reza Mikaeil, Mehdi Abdollahi Kamran, Sami Shaffiee Haghshenas, Hojjat Hosseinzadeh Gharehgheshlagh
Publikováno v:
Journal of Soft Computing in Civil Engineering, Vol 3, Iss 4, Pp 51-66 (2019)
The main goal of this study is the selection of an appropriate tunnel supporting system according to the combination of FDAHP method (Fuzzy Delphi Analytic Hierarchy Process) and ELECTRE (Elimination and Choice Expressing Reality) technique. This int
Externí odkaz:
https://doaj.org/article/b73fb1a1991f476c993a485eecddef01
Publikováno v:
Bulletin of the Mineral Research and Exploration, Vol 159, Iss 159, Pp 219-233 (2019)
Bu çalışmada İran’daki bir altın madeninde benzetim (simülasyon) destekli düzenlenmiş bir öğütme devresi konu edilmektedir. Öğütme devresinin tasarımı için gerekli parametreler cevherin özellikleri ve uygulanması düşünülen i
Externí odkaz:
https://doaj.org/article/5ef4558f045749f9a7e0279732f49654
Selection of an Appropriate Method to Extract the Dimensional Stones Using FDAHP & TOPSIS Techniques
Autor:
Akbar Esmailzadeh, Reza Mikaeil, Golsa Sadegheslam, Ahmad Aryafar, Hojjat Hosseinzadeh Gharehgheshlagh
Publikováno v:
Journal of Soft Computing in Civil Engineering, Vol 2, Iss 1, Pp 101-116 (2018)
In this paper, it was aimed to select a suitable method to extract the dimensional stone to increase dimensional stone quarries efficiency. The usual methods including diamond cutting-wire method, blasting method, plug, and feather method, Katrock ex
Externí odkaz:
https://doaj.org/article/e4a216657a2d40fa9a9cb5dd6fe9e0a6
Publikováno v:
Rudarsko-geološko-naftni zbornik
Volume 38
Issue 1
Volume 38
Issue 1
Grinding aids are materials that are added to cement mixtures to improve the characteristics of the cement or increase the efficiency of the milling systems or both in the clinker grinding (finish grinding) stage. In this study, the effects of four g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f16a0d855c7bfa5dedfe9cb0c2fc7e97
https://hrcak.srce.hr/295292
https://hrcak.srce.hr/295292
Publikováno v:
Advanced Powder Technology. 30:2042-2051
The scale-up of laboratory grinding data to industrial milling operations generally relies on tests carried out in cylindrical ball mills run in batch mode. This approach imposes no restriction on the diameter and length of the laboratory mill. In th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::033abea68518c90b7c903f8c61b61afa
https://doi.org/10.1016/j.apt.2019.06.017
https://doi.org/10.1016/j.apt.2019.06.017
Autor:
Hojjat Hosseinzadeh Gharehgheshlagh, Saeed Soltani-Mohammadi, Babak Sohrabian, Jafar Abdollahi Sharif
Publikováno v:
Natural Resources Research. 29:983-1005
Tailings from porphyry copper mines contain environmentally harmful amounts of elements such as copper, molybdenum, lead and cobalt. Geostatistical simulation of contaminants at unknown locations can be helpful in taking preventive measures for taili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aefdbee248c78d2c8f6415e47bcbe023
https://doi.org/10.1007/s11053-019-09517-1
https://doi.org/10.1007/s11053-019-09517-1
Autor:
Mojtaba Yari, B.N. Akhgar, Amir Zeynali, Mahsa Pishravian, Sajjad Chehreghani, Hojjat Hosseinzadeh Gharehgheshlagh
Publikováno v:
Rudarsko-geološko-naftni zbornik
Volume 36
Issue 1
Rudarsko-geološko-naftni Zbornik, Vol 36, Iss 1, Pp 37-47 (2021)
Volume 36
Issue 1
Rudarsko-geološko-naftni Zbornik, Vol 36, Iss 1, Pp 37-47 (2021)
In this research, dissolution of chalcopyrite concentrate is modelled and optimized using Response Surface Methodology (RSM). Also, effective parameters in the leaching process such as the amount of pyrite, silver ions, redox potential and initial co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf929bfc54fee3963541559f7f682060
https://hrcak.srce.hr/250780
https://hrcak.srce.hr/250780