Results 31 to 40 of about 67,767 (140)

Rare Earth Elements Recovery from Primary and Secondary Resources Using Flotation: A Systematic Review

open access: yesApplied Sciences, 2023
Rare earth minerals (REMs) contain rare earth elements (REEs) that are important in modern technologies due to their unique magnetic, phosphorescent, and catalytic properties.
Pongsiri Julapong   +9 more
doaj   +1 more source

Selection of Temperature regimes for conditioning and flotation of diamond-bearing kimberlite with compound collectors

open access: yesГорные науки и технологии, 2022
The condition for stable fixation of a collector on the surface of diamonds and their flotation is the use of collectors of the optimal fractional composition and the choice of the optimum temperature regime of the process. To determine the parameters of
Valery V. Morozov   +3 more
doaj   +1 more source

GeoDataBase geomorfologico per acquisizione dei dati tramite tecnologie mobile

open access: yesGEOmedia, 2016
Among the creation of geomorphological maps the data collection of elements and features is one of the most important steps. The most relevant information to be collected are not only their position (geolocalization) but also their classification and ...
Mattia De Amicis   +3 more
doaj  

collector

open access: yes, 2014
Citation: 'collector' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.C01151 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
  +4 more sources

Numerical Simulation of the Collector Angle Effect on the Performance of the Solar Chimney Power Plant

open access: yesAl-Khawarizmi Engineering Journal, 2017
Sloped solar chimney system is a solar chimney power plant with a sloped collector. Practically, the sloped collector can function as a chimney, then the chimney height can be reduced and the construction cost would be reduced.The continuity, Naver ...
Arkan K. Al-Taaie   +2 more
doaj  

Settling of mollusks and sedimentation on artificial substrata in the Sukhodol Bay (​​Japan Sea)

open access: yesИзвестия ТИНРО, 2014
Density of bivalve spat settled on collectors determines the yield of aquaculture plantation. It varies considerably in different water areas at Primorye coast and has year-to-year variability. The spat settling intensity in the last decade is considered
Galina S. Gavrilova   +1 more
doaj   +1 more source

Current productivity of the scallop ( Mizuhopecten yessoensis) plantations in the bights of the Ussuri Bay (Japan Sea)

open access: yesИзвестия ТИНРО, 2015
Dynamics of the scallop spat settling to collectors of marine farms in the Sukhodol Bay and Malye Kushi Bay (Ussuri Bay) in 2012-2014 is considered. In the Sukhodol Bay, the spat density was 225 ind./m2 in 2012 that is close to usual value, but only 31 ...
Galina S. Gavrilova, Larisa N. Kim
doaj   +1 more source

L’appareil éditorial au service de la photographie

open access: yesFocales
A "new photographic edition" can be recognized by its spirit and the way it conveys its subject: photography. Obviously artistic, this photographic writing is built upon three pillars: the publisher's website, a true showcase for these works, where the ...
Pascal Krajewski
doaj   +1 more source

REGULARITIES OF CHANGE OF EFFICIENCY OF OIL WELLS OF THE FIELD OF VELICHAEVSKO-KOLODEZNE

open access: yesВестник Северо-Кавказского федерального университета, 2022
In article comparison of various geological parameters of oil pools to level of production of hydrocarbons on wells is carried out. On the actual material extent of influence of various geological factors at sizes of efficiency of oil wells is estimated.
Mikhail V. Nelepov   +2 more
doaj  

OF RENT COLLECTORS AND DEBT COLLECTORS

open access: yesObiter, 2023
This note examines the question whether an estate agent collecting or receiving monies in the course of his or her business as an estate agent is also a “debt collector” as defined in the Debt Collectors Act 114 of 1998. The matter is of some importance: if the answer is in the affirmative it would mean that estate agents mandated to collect rentals ...
openaire   +1 more source

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