Results 31 to 40 of about 18,078 (293)

First Crio-extraction of Cherry Pit after Aspiration

Journal of Lung Diseases & Treatment, 2016
Introduction: Vegetable foreign bodies (FB) are most commonly aspirated in children, these are very dangerous as most of them are hygroscopic, they swell up within a few days causing blockage of the lumen of the bronchus and retention of secretion distal to it.
Gómez López A, García Luján R
openaire   +1 more source

Improvement of the transitional technology from open pit to underground mining of magnetite quartzite [PDF]

E3S Web of Conferences
The paper analyzes the disadvantages of the technology of iron ore open pit mining and current environmental problems of open pit mining. The paper also addresses problems of possible displacement and strains of rocks in the classical open pit mining ...
Stupnik Mykola, Kalinichenkо Vsevolod, Kalinichenko Olena, Shepel Oleksandr, Pochtarev Alexey   +4 more
doaj   +1 more source

Ecological Restoration and Transformation of Maoming Oil Shale Mining Area: Experience and Inspirations

Land, 2023
Oil shale is a kind of unconventional energy resource with abundant reserves, but its exploitation has a continuous negative impact on the environment, which has hindered the research and exploitation of oil shale under the international environmental ...
Difei Zhao, Wei Zhang, Wanyu Xie, Chaowei Liu, Yingying Yang, Yingxing Chen, Chongyang Ren, Hongyu Chen, Qing Zhang, Sotiris Folinas   +9 more
doaj   +1 more source

Settled

The Thinker, 2022
Settled is a work of short fiction concerned with the notions of value and extraction in the arts, and the unequal relationships of power this imposes.
David Mann
doaj   +1 more source

Sorptive technology of extracting nonferrous metals from pit water [PDF]

Russian Journal of Non-Ferrous Metals, 2013
Mine waters containing dangerous heavy metals are a significant environmental problem. Traditional methods of purification do not make it possible to completely eliminate impurities. In this work, the results of sorptive studies into the recovery of nonferrous metals from the mine water of a copper-zinc deposit are presented. Laboratory experiments for
Timofeev, K. L., Naboychenko, S. S., Lebed', A. B., Akulich, L. F.   +3 more
openaire   +2 more sources

The Study Related to the Execution of a Triangulation Network in the Dump of Rovinari Pit, in Order to be Restored to the Economic Circuit

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture, 2016
The lignite mining extraction within the mining perimeter in Rovinari is carried out through mining works in the open, by using large equipments for the excavation, transport and storage of the mining material.
George Popescu, Cosmin-Alin Popescu, Mihai Herbei, Lucian Dragomir   +3 more
doaj   +1 more source

Synchrotron X-ray radiography studies of pitting corrosion of stainless steel: Extraction of pit propagation parameters

Corrosion Science, 2015
In situ synchrotron X-ray radiography was used to observe the evolution of 2D pits growing at the edge of stainless steel foils in chloride solutions of varying concentrations under current and potential control. A method was developed for measuring the local anodic current density along the perimeter of pits from the rate of advance of the pit into ...
Ghahari, Majid, Krouse, Donal, Laycock, Nicholas, Rayment, Trevor, Padovani, Cristiano, Stampanoni, Marco, Marone, Federica, Mokso, Rajmund, Davenport, Alison J   +8 more
openaire   +3 more sources

The Role of Hematopoietic Cell Transplantation in Ataxia‐Telangiectasia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Ataxia‐telangiectasia (A‐T) is a DNA repair disorder characterized by neurodegeneration, immunodeficiency, and cancer predisposition. Hematopoietic cell transplantation (HCT) is an established therapy in related disorders such as Fanconi anemia (FA) and Nijmegen breakage syndrome (NBS), but its role in A‐T is unclear.
Laila Alkhouli, Seth Rotz, Masatoshi Takagi, Richa Sharma   +3 more
wiley   +1 more source

Computer-aided optimal open pit design with variable slope angles [PDF]

, 1999
The use of open pit mining has increased to extract large and low grade deposits with the growth in demand for raw materials, with the advances in mining technology and with the depletion of high grade and readily accessible orebodies.
Khalokakaie, R., Khalokakaie, Reza
core  

Substantiation the safety open pit wall parameters in the conditions of a reduced protective zone near State critical infrastructure [PDF]

E3S Web of Conferences
The research is focused on topical issues of determining the safe parameters of pit edges in the conditions of a reduced protective zone near a critical infrastructure facility.
Cherniaiev Oleksii, Anisimov Oleg, Dreshpak Oleksandr, Borodina Nataliya   +3 more
doaj   +1 more source