Xianzhi Hu
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View article: Ameliorated Chameleon Algorithm-Based Shape Optimization of Disk Wang–Ball Curves
Ameliorated Chameleon Algorithm-Based Shape Optimization of Disk Wang–Ball Curves Open
The shape design and optimization of complex disk curves is a crucial and intractable technique in computer-aided design and manufacturing (CAD/CAM). Based on disk Wang–Ball (DWB) curves, this paper defines a novel combined disk Wang–Ball …
View article: Electrochemical Oxidation Mechanism of Pyrite in a Copper(II)-Citrate-Sodium Thiosulfate Composite System
Electrochemical Oxidation Mechanism of Pyrite in a Copper(II)-Citrate-Sodium Thiosulfate Composite System Open
Pyrite is an important gold carrier during gold leaching, but it is readily oxidized, which causes environmental problems such as acidic mine drainage. Thus, it is necessary to study the oxidation mechanism of pyrite in a gold-leaching ele…
View article: First Gold Recovery from PCBs through en-thiosulfate Leaching and Selective Adsorption with Carbon
First Gold Recovery from PCBs through en-thiosulfate Leaching and Selective Adsorption with Carbon Open
Eco-friendly gold extraction from printed circuit boards (PCBs) is highly attractive due to the increasing demand for gold in various fields. The conventional Cu2+-NH3-S2O32− method for PCBs involves polluting NH3 gas and requires addition…
View article: Highly Efficient Recovery of Au(I) from Gold Leaching Solution Using Sodium Dimethyldithiocarbamate
Highly Efficient Recovery of Au(I) from Gold Leaching Solution Using Sodium Dimethyldithiocarbamate Open
As a sustainable, nontoxic and environmentally friendly cyanide-free gold leaching agent, thiosulfate has been applied to some extent in the field of hydrometallurgy. However, the difficult recovery of gold ions in gold leaching solutions …
View article: Efficient and Selective Recovery of Gold from Thiosulfate Leaching Solution Using Functionalized β‐Cyclodextrins Synthesized by a Steric Hindrance Strategy
Efficient and Selective Recovery of Gold from Thiosulfate Leaching Solution Using Functionalized β‐Cyclodextrins Synthesized by a Steric Hindrance Strategy Open
Designing suitable adsorbents is a key challenge in the recovery of Au(I) from thiosulfate gold‐leaching solutions as the ideal adsorbent not only possesses abundant active sites with high affinities and selectivities toward Au(I), but als…
View article: Aminophosphonic acid derivatized polyacrylonitrile fiber for rapid adsorption of Au(S2O3)23– from thiosulfate solution
Aminophosphonic acid derivatized polyacrylonitrile fiber for rapid adsorption of Au(S2O3)23– from thiosulfate solution Open
A fast and efficient Au (I) recovery adsorption method from an actual leaching solution of Cu2+-en-S2O32- is presented. Aminophosphonic acid derivatized polyacrylonitrile fibers (PAN-NP), prepared with triethylenetetramine and phosphoric a…
View article: An Enhanced Northern Goshawk Optimization Algorithm and Its Application in Practical Optimization Problems
An Enhanced Northern Goshawk Optimization Algorithm and Its Application in Practical Optimization Problems Open
As a kind of effective tool in solving complex optimization problems, intelligent optimization algorithms are paid more attention to their advantages of being easy to implement and their wide applicability. This paper proposes an enhanced …
View article: Synthesis and evaluation of ion-imprinted composite membranes of Cr(<scp>vi</scp>) based on β-diketone functional monomers
Synthesis and evaluation of ion-imprinted composite membranes of Cr(<span>vi</span>) based on β-diketone functional monomers Open
Using Cr( vi ) as the imprinted ions and 2-allyl-1,3-diphenyl-1,3-propanedione (a compound of independent design) as the functional monomer, a series of chromium ion-imprinted composite membranes and corresponding non-imprinted composite m…
View article: Preparation and adsorption properties of Ni(ii) ion-imprinted polymers based on synthesized novel functional monomer
Preparation and adsorption properties of Ni(ii) ion-imprinted polymers based on synthesized novel functional monomer Open
In this study, a novel functional monomer N -(1-(2,4-difluorophenyl)-2-(1 H -1,2,4-triazol-1-yl)ethyl)acrylamide (NDTEA) was designed and synthesized, and was used to prepare Ni( ii ) ion-imprinted polymers (Ni( ii )-IIPs). Sixteen kinds o…
View article: Research on Assignment Algorithm of Personalized Intelligent Recommended Computing Based on Group Intelligence Perception
Research on Assignment Algorithm of Personalized Intelligent Recommended Computing Based on Group Intelligence Perception Open
The development of mobile Internet and intelligent sensors makes our perception and judgment of environmental information more convenient and accurate. This paper introduces the related technical background of group intelligence perception…
View article: Approximate multi-degree reduction of Q-Bézier curves via generalized Bernstein polynomial functions
Approximate multi-degree reduction of Q-Bézier curves via generalized Bernstein polynomial functions Open
Quasi Bézier curves (or QB-curves, for short) possess the excellent geometric features of classical Bézier curves and also have good shape adjustability. In this paper, an algorithm for a multi-degree reduction of QB-curves based on $L_{2}…
View article: Sparse-Aware Bias-Compensated Adaptive Filtering Algorithms Using the Maximum Correntropy Criterion for Sparse System Identification with Noisy Input
Sparse-Aware Bias-Compensated Adaptive Filtering Algorithms Using the Maximum Correntropy Criterion for Sparse System Identification with Noisy Input Open
To address the sparse system identification problem under noisy input and non-Gaussian output measurement noise, two novel types of sparse bias-compensated normalized maximum correntropy criterion algorithms are developed, which are capabl…
View article: Adsorption of gold from thiosulfate solutions with chemically modified activated carbon
Adsorption of gold from thiosulfate solutions with chemically modified activated carbon Open
Adsorption of the gold–thiosulfate complex ion ([Formula: see text]) on silver ferrocyanide (AgFC)-impregnated activated carbon in aqueous solution has been studied in order to find an effectual adsorbent for the thiosulfate extracting gol…