Results 71 to 80 of about 1,156,762 (339)

Facteurs liés à la non réhabilitation de la mine de Kalsaka : impact environnemental et social [PDF]

open access: yesRevue Hybrides
Le Burkina-Faso connaît un essor du secteur minier avec l’exploitation de mines d’or et de zinc. Cependant, la courte durée de vie de ces mines pose un défi de réhabilitation minière.
Carole Sanogo   +2 more
doaj  

Mines in use in multinational operations / Мины в процессе многонациональных операций / Mine na teritoriji izvođenja multinacionalnih operacija

open access: yesVojnotehnički Glasnik, 2017
Members of the Ministry of Defence (MoD) and the Serbian Armed Forces (SAF) have been engaged in multinational operations (MnOPs) from 26 June 2002. During the engagement in UN MnOPs, one of the key problems is the procedures when encountering some ...
Nenad V. Kovačević
doaj   +1 more source

The Design of Prometheus: A Reconfigurable UAV for Subterranean Mine Inspection

open access: yesRobotics, 2020
The inspection of legacy mine workings is a difficult, time consuming, costly task, as traditional methods require multiple boreholes to be drilled to allow sensors to be placed in the voids. Discrete sampling of the void from static locations also means
Liam Brown   +8 more
doaj   +1 more source

Montana Bureau of Mines and Geology [PDF]

open access: yes
The Montana Bureau of Mines and Geology is the principal source of earth science information for the citizens of Montana. The bureau provides extensive advisory, technical, and informational services on geologic, mineral, energy, and water resources in ...

core   +2 more sources

The perception of the students of the Career of Medicine at University of Buenos Aires on the treatment of abortion in a medical education [PDF]

open access: yes, 2015
El objetivo del siguiente artículo es indagar cómo es el tratamiento del aborto y su atención, en la Carrera de Medicina de la UBA. Para ello, se hará hincapié en tres dimensiones.
Mines Cuenya, Ana
core   +2 more sources

Correlated Dual‐Gradient Electrodes Enabling Spatially Synchronized Sulfur Redox in High‐Mass‐Loading Li–S Batteries Under High Current Densities

open access: yesAdvanced Materials, EarlyView.
Coupling a dual‐gradient carbonized framework with Fe2O3/Fe‐N‐C catalytic sites enables spatially synchronized sulfur redox across the entire electrode thickness in high‐mass‐loading Li–S batteries. This synergistic structural–catalytic design effectively mitigates concentration, ohmic, and electrochemical polarization, thereby achieving high‐capacity ...
Yuxuan Zhang   +6 more
wiley   +1 more source

Geographic Spillover of Unionism [PDF]

open access: yes
Unionism in the United States is contagious; it spills out of coal mines and steel mills into other establishments in the neighborhood, like hospitals and supermarkets.
Thomas J. Holmes
core   +3 more sources

An Integrated EDAS-ELECTRE Method With Picture Fuzzy Information for Cleaner Production Evaluation in Gold Mines

open access: yesIEEE Access, 2018
Faced with the contradiction between economic growth and environmental pollution, implementing cleaner production has become a good choice for many mining companies to achieve sustainable development.
Weizhang Liang, Guoyan Zhao, Suizhi Luo
semanticscholar   +1 more source

Constraints on the development of coal mining in arctic Alaska based on review of Eurasian arctic practices [PDF]

open access: yes, 1976
Arctic Alaska's enormous reserves of coal may be a significant future source of energy for the United States and for the Pacific Basin. Large coal reserves have been developed in the Arctic portions of Eurasia, where problems similar to those that ...
Johansen, N.I.   +3 more
core  

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

open access: yesAdvanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy