Results 11 to 20 of about 1,022,147 (306)

Mining Genomes of Marine Cyanobacteria for Elements of Zinc Homeostasis [PDF]

open access: yesFrontiers in Microbiology, 2012
Zinc is a recognized essential element for the majority of organisms, and is indispensable for the correct function of hundreds of enzymes and thousands of regulatory proteins. In aquatic photoautotrophs including cyanobacteria, zinc is thought to be required for carbonic anhydrase and alkaline phosphatase, although there is evidence that at least some
Barnett, J. P.   +5 more
openaire   +7 more sources

Geometallurgical Characterization of the Main Mining Fronts of a Zinc and Lead Mine Operation

open access: yesMining
Geometallurgy is an approach that utilizes predictive models that can support business decisions, mitigate risks, and enhance production efficiency.
Jordan J. Silva   +6 more
doaj   +2 more sources

Effects of multi-heavy metal composite pollution on microorganisms around a lead-zinc mine in typical karst areas, southwest China

open access: yesEcotoxicology and Environmental Safety, 2023
Heavy metal pollution poses a serious hazard to the soil bacterial community. The purpose of this study is to understand the characteristics of soil heavy metal pollution in lead-zinc mines in karst areas and the response of Pb, Zn, Cd, and As-induced ...
Yingying Zuo   +4 more
doaj   +1 more source

Influence of structural and textural features of ores and rocks on mine dust explosion hazard during development of pyrite deposits [PDF]

open access: yesE3S Web of Conferences, 2020
In the practice of mining works, sulfide-dust explosions often occur during underground development of pyrite ore deposits: copper-zinc, lead-zinc, copper-nickel, antimony, and others. This makes it necessary to conduct researches aimed at improvement of
Rylnikova Marina   +2 more
doaj   +1 more source

Characteristics of heavy metal accumulation in five wild plants in Huize Lead-Zinc mining area [PDF]

open access: yesE3S Web of Conferences, 2021
In order to screen out the plants used to repair heavy metal pollution in the soil, five plants and surface soil were collected in the Huize lead-zinc mine area, centered on the hyperaccumulator plant Arabis alpina L. var. parviflora Franch, measured the
Mou Fengli   +4 more
doaj   +1 more source

Determination of Tin, Lead and Zinc in a Tin-Lead-Zinc Deposit in Xianghualing Mining Area, Hunan Province by Inductively Coupled Plasma-Optical Emission Spectrometry with Alkali Fusion

open access: yesYankuang ceshi, 2023
BACKGROUND The Xianghualing mining area in Hunan Province is an important part of the east-west tectonic-magmatic-metallogenic belt in the Nanling area.The ore-forming geological conditions in the mining area are superior, and it is famous for its many ...
XIAO Xilian   +5 more
doaj   +1 more source

Distribution characteristics of the point load strength index of irregular ore rock samples in deep mines

open access: yes工程科学学报, 2023
The frequent occurrence of core disking in boreholes under high in-situ stress in deep rock engineering leads to the difficulty in intact core sampling on sites.
Di-yuan LI   +4 more
doaj   +1 more source

The critical importance of pulp concentration on the flotation of galena from a low grade lead–zinc ore

open access: yesJournal of Materials Research and Technology, 2016
The Qixia orebody is a complex lead–zinc sulfide system with pyrite gangue and minor amounts of copper. In order to improve the flotation results, laboratory scale flotation testing of ore samples taken from this operation was performed.
Xianping Luo   +5 more
doaj   +1 more source

Studies on zinc recovery from technogenic waste [PDF]

open access: yesE3S Web of Conferences, 2021
Results from laboratory experiments are presented on extraction of zinc available in waste from lead-zinc metallurgy, mixed with lead-zinc flotation tailings and some waste rock, by leaching it under atmospheric conditions with sulfuric acid (H2SO4 ...
Panayotova Marinela, Panayotov Vladko
doaj   +1 more source

The Zinc Finger Protein ZNF658 Regulates the Transcription of Genes Involved in Zinc Homeostasis and Affects Ribosome Biogenesis through the Zinc Transcriptional Regulatory Element [PDF]

open access: yes, 2015
We previously identified the ZTRE (zinc transcriptional regulatory element) in genes involved in zinc homeostasis and showed that it mediates transcriptional repression in response to zinc. We now report that ZNF658 acts at the ZTRE.
Ogo, Ogo A.   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy