Results 11 to 20 of about 33,706 (268)
Effects of Ion Characteristics on the Leaching of Weathered Crust Elution-Deposited Rare Earth Ore
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
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Leaching of vanadium, potassium, and iron from spent catalyst of the manufacture of sulfuric acid
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
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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
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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
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EE-LEACH: development of energy-efficient LEACH Protocol for data gathering in WSN [PDF]
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
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Hydrothermal Leaching Kinetics of Vanadium from an Iron Vanadate Mineral Using Oxalic Acid
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
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Research on optimisation of energy efficient routing protocol based on LEACH [PDF]
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
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A new modification of LEACH for efficient energy in WSN
<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
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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
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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
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