Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Javad Gholamnejad"'
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 35, Iss 4, Pp 115-129 (2020)
This paper presents a chance-constrained integer programming approach based on the linear method to solve the longterm open pit mine production scheduling problem. Specifically, a single stockpile has been addressed for storing excess low-grade mater
Externí odkaz:
https://doaj.org/article/fc431a664e1049ff8d1fa314df4c4d12
The Application of Artificial Neural Networks to Ore Reserve Estimation at Choghart Iron Ore Deposit
Publikováno v:
Analytical and Numerical Methods in Mining Engineering, Vol 6, Iss ویژه نامه انگلیسی, Pp 73-83 (2017)
Geo-statistical methods for reserve estimation are difficult to use when stationary conditions are not satisfied. Artificial Neural Networks (ANNs) provide an alternative to geo-statistical techniques while considerably reducing the processing time r
Externí odkaz:
https://doaj.org/article/6ebfd91448c345c4bbe7241e187fe3c8
Publikováno v:
Analytical and Numerical Methods in Mining Engineering, Vol 6, Iss ویژه نامه انگلیسی, Pp 25-40 (2017)
A fourth order formulation of the displacement discontinuity method (DDM) is proposed for the crack analysis of brittle solids such as rocks, glasses, concretes and ceramics. A fourth order boundary collocation scheme is used for the discretization o
Externí odkaz:
https://doaj.org/article/282fac70a2e247dcaf8e076ce67b8317
Publikováno v:
Engineering Optimization. 53:1119-1134
Production planning of an open pit mine is defined as determining the extraction sequence of blocks in the final pit limit with the goal of maximizing Net Present Value (NPV) while considering the ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af1e57174cf2e2ac8ed670170e276284
https://doi.org/10.1080/0305215x.2020.1771703
https://doi.org/10.1080/0305215x.2020.1771703
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 35, Iss 4, Pp 115-129 (2020)
Rudarsko-geološko-naftni zbornik
Volume 35
Issue 4
Rudarsko-geološko-naftni zbornik
Volume 35
Issue 4
This paper presents a chance-constrained integer programming approach based on the linear method to solve the longterm open pit mine production scheduling problem. Specifically, a single stockpile has been addressed for storing excess low-grade mater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f5335b71877988717c057bf3ad5ed96
https://hrcak.srce.hr/file/357440
https://hrcak.srce.hr/file/357440
Autor:
JAVAD, Gholamnejad, NARGES, Tayarani
Publikováno v:
In Mining Science and Technology (China) 2010 20(5):727-733
SYNOPSIS Long-term production scheduling is a major step in open pit mine planning and design. It aims to maximize the net present value (NPV) of the cash flows from a mining project while satisfying all the operational constraints, such as grade ble
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::593f3f2eacfe7315526ce34dd44324bb
https://hdl.handle.net/11585/801830
https://hdl.handle.net/11585/801830
Autor:
Ehsan Moosavi, Javad Gholamnejad
Publikováno v:
Journal of Mining Science. 52:956-964
The cutoff grade problem is an important research challenge and vital optimization task in the yearly operational planning of open pit mines due to its combinatorial nature. Because of it's influenced by the economic parameters, the capacities of sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::747a73803f587844585b29a4c572436b
https://doi.org/10.1134/s1062739116041465
https://doi.org/10.1134/s1062739116041465
Publikováno v:
International Journal of Mining Science and Technology, Vol 26, Iss 4, Pp 557-561 (2016)
Hydraulic fracture is one of the key methods in well stimulation to increase production of oil and gas. Crack Opening Displacement (COD) is of great importance in this method since it is in direct relation with permeability and production rate. In th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d26ff705db87df319879788b6391aa8
https://doi.org/10.1016/j.ijmst.2016.05.004
https://doi.org/10.1016/j.ijmst.2016.05.004
Publikováno v:
Computers and Geotechnics. 74:15-25
Rocks are naturally filled with cracks and pores that are saturated with one or more fluid phases. Many problems in rock mechanics, petroleum engineering, geophysics, etc. deal with cracks and discontinuities in rock formations. These problems should
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::949497e54078a1de0e8051ab7079a0b5
https://doi.org/10.1016/j.compgeo.2015.12.011
https://doi.org/10.1016/j.compgeo.2015.12.011