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Study on the efficiency of destress blasting in deep mine drift ...

Canadian hard rock mines continue to reach deeper deposits, which poses greater challenges to mine safety including rock burst control. Destress blasting techniques have been successfully employed in such underground mines with the aim of preconditioning highly stressed rock mass to mitigate the risk for rock burst occurrence in deep mines. In the present study, the efficiency of …

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Mineral Resources Authority

Et underudforsket land, der er rigt på mineraler og med konkurrencedygtige vilkår for udstedelse af tilladelser, stabile politiske forhold, en lav investeringsrisiko, og med en befolkning og et selvstyre, der er positivt indstillet over for minedrift.

Worlds Inc. vs. Microsoft in Patent Infringement Lawsuit Related …

Boston, MA, Sept. 29, 2020 (GLOBE NEWSWIRE) -- Worlds Inc. (OTCQB: WDDD), a leading intellectual property developer and licensor of patents related to 3D online virtual worlds, on Sept. 25th, 2020 ...

Someone''s Suing Mojang for a Software Patent

From the pdf: Mojang is directly infringing one or more claims of the ''067 patent in this judicial district and elsewhere in Texas, including at least claim 107, without the consent or authorization of Uniloc, by or through making, using, offering for sale, selling and/or importing Android based applications for use on cellular phones and/or tablet devices that require communication with a ...

Study on the efficiency of destress blasting in deep mine drift ...

The results showed that CASRock can well simulate the damage and failure process of the rock mass around the blasthole after blasting. Based on the FDM, the FLAC and FLAC3D packages developed by ...

Ynisdavid Colliery Explosion

YNISDAVID. Cwmavon, Glamorganshire. 24th. May, 1856. The colliery belonged to the Governor and Company of Copper Miners of England who were the proprietors of the whole of the extensive works at Cwmavon and there were five collieries. About 3 a.m. when there were about seventy men in the mine, the...

Minecraft studio target of patent infringement lawsuit

Minecraft developer Mojang is the target of another lawsuit, this time not for a name but for something almost as fundamental. The Swedish independent studio is being sued by technology firm ...

Mine Shaft and Drift, Types of

It includes inclined shaft, ramp, rise and winze, etc. The inclined shaft usually refers to the inclined drift with large inclination where trackless equipment cannot pass, including the one lifted by winch and the one with belt conveyor.

Microsoft Faces Patent Suit Over ''Minecraft''

By Adam Lidgett. Law360 (October 1, 2020, 9:36 PM EDT) -- Microsoft has been hit with a lawsuit in Texas federal court that accuses it of infringing a virtual-world technology patent through the ...

Excavation compensation and bolt support for a deep mine drift

Owing to the special occurrence and poor fixation of gently inclined, medium-thick, and broken phosphate ore bodies, effectively enhancing mining safety, increasing the recovery rate, reducing dilution and loss, and controlling goaf …

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Minecraft

Wegen einer Patentverletzung wurde Minecraft-Entwickler Mojang nun vom texanischen Software-Unternehmen Uniloc verlagt. Grund dafür ist die Android-Version des Klötzchenspiels.

Former Derbyshire drift mine made safe to protect public and ...

The drift mine had been worked by two roadways that ran about 30 m beneath a railway line linking London and Sheffield. To ensure this major route was not damaged by future subsidence linked to the former mining operation, roadways needed to be sealed and packed to permanently stabilise the ground.

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(PDF) Optimization Drift Support Design Based on

Geotechnical issues due to inappropriate support designs of underground drift will affect mining developments and production. The aim of this study was to provide a systematic support design ...

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Minecraft: Uniloc verklagt Mojang wegen Patentverletzung in der …

Das Unternehmen Uniloc ist bekannt dafür, dass es andere Firmen wegen des Verstoßes gegen Software-Patente verklagt. Diesmal trifft es Minecraft-Entwickler Mojang mit der Android-Version des Spiels.

Excavation compensation and bolt support for a deep mine drift

Zhigang Tao. Zhigang Tao is a professor and doctoral supervisor at China University of Mining and Technology (Beijing). His research focuses on large deformation support materials and disaster control in geotechnical engineering. He has presided over or participated in 35 scientific research projects and won 10 scientific research awards, including China Patent Gold Award, …

Former Derbyshire drift mine made safe to protect public and ...

After Eckington Colliery in Derbyshire unexpectedly closed in January 2019, the Coal Authority carried out a detailed programme of works to keep people safe and protect the environment.

The history of Minecraft – the best selling PC game ever

Minecraft''s Alpha sales began on June 13th 2009. Less than a month later it had sold over 1,000 copies and gained over 20,000 registered players, enough for Persson to scale back the hours spent ...

Drift Exploration, Functions and Application of | SpringerLink

Drift exploration is applied in various stages of geological work: (1) In the stage of regional geological survey, it mainly focuses on the construction of exploratory trenches and shallow shafts, which is used to expose bedrock, trace the outcrop of the ore body, delineate the scope of the mining area, and provide intuitive data for geological mapping.

Downward drift filling mining method

The invention relates to the field of underground mining, in particular to a downward drift filling mining method. In a layered driftway, a drift is divided into a plurality of drifts; the first drift is firstly extracted; after the first drift is extracted and is compactly filled, the rest drifts are sequentially extracted and filled; the layered drifts adopt shallow hole rock drilling ...

Willkommen bei der offiziellen Minecraft-Seite | Minecraft

Auf der offiziellen Minecraft-Seite kannst du neue Gaming-Abenteuer, Zubehör und Merch entdecken. Hier kannst du das Spiel kaufen und herunterladen oder siehst dir die neusten Neuigkeiten an.

2024 Mining Terms Explained

Back - The ceiling or roof of an underground opening. Backfill - Waste material used to fill the void created by mining an orebody. Background - Minor amounts of radioactivity due not to abnormal amounts of radioactive minerals nearby but to cosmic rays and minor residual radioactivity in the vicinity. Back sample - A rock sample collected from the roof or …

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Worlds Inc. vs. Microsoft in Patent Infringement Lawsuit

Boston, MA, Sept. 29, 2020 (GLOBE NEWSWIRE) -- Worlds Inc. (OTCQB: WDDD), a leading intellectual property developer and licensor of patents related to 3D online virtual worlds, on Sept. 25 th ...

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Microsoft in Legal Battle with Worlds Inc. Over Alleged Patent ...

Microsoft in Legal Battle with Worlds Inc. Over Alleged Patent Infringement in Minecraft. Worlds Inc. v. Microsoft Corp. Case No. 6:20-cv-00872 United States District Court for the Western District of Texas