Results 21 to 30 of about 84,690 (277)

The effect of polyether on the separation of pentlandite and serpentine

open access: yesJournal of Materials Research and Technology, 2015
The effect of polyether on the separation of pentlandite from serpentine has been studied. In addition to flotation and sedimentation tests, electrophoresis and adsorption tests have been conducted.
Xiaowen Zhou, Bo Feng
doaj   +1 more source

Design of experiment study of the parameters that affect performance of three flow plate configurations of a proton exchange membrane fuel cell [PDF]

open access: yes, 2010
Low temperature hydrogen fuel cells are electrochemical devices which offer a promising alternative to traditional power sources. Fuel cells produce electricity with a reaction of the fuel (hydrogen) and air. Fuel cells have the advantage of being clean;
Carton, James, Olabi, Abdul-Ghani
core   +1 more source

The effect of quartz on the flotation of pyrite depressed by serpentine

open access: yesJournal of Materials Research and Technology, 2015
The effect of quartz particles on the flotation of pyrite depressed by serpentine has been investigated through flotation tests, adsorption tests, zeta potential measurements and DLVO calculation.
Bo Feng, Yiping Lu, Xianping Luo
doaj   +1 more source

Temperature reduction during brucite-based magnesia cement production [PDF]

open access: yesИнженерно-строительный журнал, 2013
The article considers the problem of reducing the energy consumption during the production process of magnesia cement based on brucite admixed with serpentine, because this solid requires roasting at high temperatures (1100–1200°C).
B.Y. Trofimov   +4 more
doaj   +1 more source

Climate and plant community diversity in space and time. [PDF]

open access: yes, 2020
Climate strongly shapes plant diversity over large spatial scales, with relatively warm and wet (benign, productive) regions supporting greater numbers of species.
Harrison, Susan   +2 more
core   +2 more sources

Combined endophytic inoculants enhance nickel phytoextraction from serpentine soil in the hyperaccumulator Noccaea caerulescens [PDF]

open access: yes, 2015
This study assesses the effects of specific bacterial endophytes on the phytoextraction capacity of the Ni-hyperaccumulator Noccaea caerulescens, spontaneously growing in a serpentine soil environment.
Dramis, Lucia   +4 more
core   +2 more sources

An efficient 1-D periodic boundary integral equation technique to analyze radiation onto straight and meandering microstrip lines [PDF]

open access: yes, 2012
A modeling technique to analyze the radiation onto arbitrary 1-D periodic metallizations residing on a microstrip substrate is presented. In particular, straight and meandering lines are being studied. The method is based on a boundary integral equation,
De Zutter, Daniël   +2 more
core   +1 more source

A New Species of Argophyllum (Argophyllaceae) with Notes on the Species from New Caledonia and Nickel Hyperaccumulation

open access: yesPlants, 2021
The taxonomy of Argophyllum (Argophyllaceae) in New Caledonia is reviewed here. All names validly published in Argophyllum in this archipelago are discussed and lectotypified when necessary.
Yohan Pillon, Vanessa Hequet
doaj   +1 more source

Giant serpentine aneurysm [PDF]

open access: yesBMJ Case Reports, 2016
A 34-year-old man with a history of seizures presented after a generalised seizure. An MRI of the brain and MR angiogram of the brain (figure 1) were performed, demonstrating a partially thrombosed, giant intracranial aneurysm involving the left anterior cerebral artery (ACA).
Ramesh, Grandhi   +3 more
openaire   +2 more sources

Study on Process Mineralogy of a Copper-Nickel Polymetallic Sulfide Ore

open access: yesKuangchan zonghe liyong, 2022
In this study, the process mineralogy of a copper-nickel polymetallic sulfide ore was studied. Results show that the main useful minerals in the ore are nickel-pyrite and chalcopyrite.
Weijun Tan, Zeping Feng
doaj   +1 more source

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