Results 11 to 20 of about 33,706 (268)

Effects of Ion Characteristics on the Leaching of Weathered Crust Elution-Deposited Rare Earth Ore

open access: yesFrontiers in Chemistry, 2020
To reveal the ion-exchange mechanism in the leaching process of weathered crust elution-deposited rare earth ores with different leaching agents, the effects of a variety of cations and anions at different concentrations on the leaching process were ...
Zhenyue Zhang   +5 more
doaj   +1 more source

Leaching of vanadium, potassium, and iron from spent catalyst of the manufacture of sulfuric acid

open access: yesJournal of Materials Research and Technology, 2021
The sulfuric acid industry produces large volumes of spent catalyst containing vanadium. To develop an efficient method for vanadium recovery, hydrogen peroxide was used to oxidize sulfur in the spent catalyst, forming sulfuric acid, which, in turn ...
Liushun Wu   +4 more
doaj   +1 more source

Recuperação de um solo salinizado após cultivo em ambiente protegido Reclamation of a salinized soil after cultivation in greenhouse

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2001
O excesso de fertilizantes e o manejo inadequado da irrigação nos cultivos em ambiente protegido, têm levado à salinização dos solos, o que resulta na redução da produtividade das culturas.
Flávio F. Blanco, Marcos V. Folegatti
doaj   +1 more source

Effect of surfactant addition on leaching process of weathered crust elution-deposited rare earth ores with magnesium sulfate

open access: yesInternational Journal of Mining Science and Technology, 2023
Surfactants were proposed to be added into magnesium sulfate solution to improve the leaching process of weathered crust elution-deposited rare earth ores (WREOs).
Fang Zhou   +4 more
doaj   +1 more source

EE-LEACH: development of energy-efficient LEACH Protocol for data gathering in WSN [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2015
A wireless sensor network (WSN) consists of a huge number of sensor nodes that are inadequate in energy, storage and processing power. One of the major tasks of the sensor nodes is the collection of data and forwarding the gathered data to the base station (BS).
Gopi Arumugam, Thirumurugan Ponnuchamy
openaire   +1 more source

Hydrothermal Leaching Kinetics of Vanadium from an Iron Vanadate Mineral Using Oxalic Acid

open access: yesMetals, 2023
Hydrothermal leaching vanadium using oxalic acid is a novel method reported recently to overcome the serious environmental problems caused by traditional extracting processes.
Biao Shen, Xuexin Chen, Baijun Yan
doaj   +1 more source

Research on optimisation of energy efficient routing protocol based on LEACH [PDF]

open access: yesInternational Journal of Ad Hoc and Ubiquitous Computing, 2021
Abstract Aiming at the shortcomings of a typical Low Energy Adaptive Clustering Hierarchy (LEACH) routing protocol, which randomly selects cluster heads (CHs) and sends data to the base station (BS) by single-hop, an improved effcient routing protocol, Leach-sub-muti, is proposed. In the process of electing CH, the protocol considers the energy
Haibin Sun, Dijing Pan
openaire   +1 more source

A new modification of LEACH for efficient energy in WSN

open access: yesIndonesian Journal of Electrical Engineering and Computer Science, 2020
<p>The limited energy of nodes in wireless sensor networks and the<br />impossibility of replacing their batteries, have lead to protocols development<br />which optimize and balance the energy consumption over the network.<br />LEACH is the most used hierarchical protocol.
Lechani, Taous   +2 more
openaire   +3 more sources

Energy Efficient LEACH

open access: yesInternational Journal of Computer Applications, 2013
Sensors are battery operated devices and are normally placed in the region where humans could not reach easily. Therefore these devices need to be used carefully so as to extend the network life. Network layer plays important role for transmission of data from source node to destination node.
S. G. Bhirud   +2 more
openaire   +1 more source

Hydrochloric Acid Leaching Behaviors of Copper and Antimony in Speiss Obtained from Top Submerged Lance Furnace

open access: yesMetals, 2020
Copper (Cu) has been recovered from speiss generated from top submerged lance furnace process, but it was reported that the leaching efficiency of Cu in sulfuric acid solution decreased with increasing antimony (Sb) content in the speiss.
Sujin Chae   +3 more
doaj   +1 more source

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