For instance, King used mixed-potential theory and a unidimensional code to develop a copper sulfide model (CSM) 20, which can predict the effects of complex chemical reactions on the copper ...

This paper proposes a mixed-integer programming model to obtain the optimal transition point and the transition period from open-pit to underground mining, maximizing the project net present value ...

A simplified transport model is then used to study the influence of the BML on the interplay between turbulent diffusion and sediment settling in the transport of deep-seabed mining induced ...

mining the mixed potential, overpotent ials, reaction current, and selection ofthecathodicandanodicreactions.Thisistheequationfortheconceptof mixed-potential-driven catalysis.

A model is developed for the study of the mixed potential at the cathode of H 2 O 2-based fuel cells. • The coupled mass/charge transport and electrochemical reactions are considered. • The mixed potential associated with H 2 O 2 oxidation appears at low current densities. • The largest potential loss due to the HPOR occurs under the …

First Online: 03 May 2023. 3 Accesses. Download reference work entry PDF. The mixed potential of ore pulp is the solution equilibrium potential measured when the REDOX …

The concept of mixed potentials has been applied to explain important aspects of corrosion for many years. In many hydrometallurgical systems, reactions occur by means of electrochemical mech- anisms. Application ofmixed potential theory to explain the kinetics ofoxidative and reductive leach- ing processes is a useful concept in …

The goal of this paper is to develop and test an optimisation model for short-term open pit mine production scheduling. A multidestination mixed integer linear programming (MILP) model is proposed, which minimises the overall cost of mining operations including mining, processing, haulage, rehandling and rehabilitation costs.

Mixed potential model is introduced to interpret gold leaching in solutions of complexing reagents. Methods of increasing the rate of gold leaching are illustrated in …

by a mixed integer programming (MIP) production scheduling model and a manually generated model on a nine stope example is presented. Results indicate that the potential benefits of the MIP production

Mixed Potential Theory. Chapter. 2897 Accesses. 5 Citations. Summary. The mixed-potential theory includes both anodic and cathodic polarization, in which diffusion of …

Application of mixed potential theory to explain the kinetics of oxidative and reductive leaching processes is a useful concept in explaining observed results. Native …

The concept of mixed potentials has been applied to explain important aspects of corrosion for many years. In many hydrometallurgical systems, reactions occur by means of electrochemical mechanisms. Application of mixed potential theory to explain the kinetics of oxidative and reductive leaching processes is a useful concept in …

Recently, data mining analysis techniques have been developed, as large spatial datasets have accumulated in various fields. Such a data-driven analysis is necessary in areas of high uncertainty and complexity, such as estimating groundwater potential. Therefore, in this study, data mining of various spatial datasets, including …

The mixed potential theory partly mentioned earlier, is used with advantage to predict the rate of corrosion of metals and alloys in given environment. It was postulated by Wagner …

On the basis of Section 3.1.1, a simplification based on the mixed potential function model is made as follows: 1) PV array under standard test conditions (temperature T = 25 °C, light conditions S = 1000 W/m 2), It can be equated to a controlled current source by considering only its output characteristics. 2) All DC-DC converters operate in ...

Traffic flow prediction is a fundamental problem in spatiotemporal data mining. Most of the existing studies focuses on designing statistical models to fit historical traffic data, which are purely data-driven approaches and fail to reveal the underlying mechanisms of urban traffic. To address this issue, we propose the spatiotemporal potential energy field …

Here we present zeta potential measurements of synthetic calcite in mixed brines containing four PDIs and then develop a generalized double layer SCM to model the experimental results. The novelty of this work is to quantify the individual contribution of Ca 2+, CO 3 2−, Mg 2+ and SO 4 2− on synthetic calcite surface charge.

The Park-Paulino-Roesler (PPR) model [21], a unified, mixed-mode, potential based cohesive zone model, is used to simulate the decohesion of the ferrite/ferrite and ferrite/martensite grain ...

Abstract. Many studies are dealing with the behavior of mixed potential sensors. However, a quantitative description of the processes leading to the sensor signals has not yet been carried out. This paper describes a first approach to address the question to what extent a mixed potential sensor can be modelled in a finite element model.

This research paper conducts the research on the simulation of regional economic development potential forecast model based on remote sensing information mining. With the help of relevant advanced technology, the logistics system can improve its operational efficiency and enhance its logistics supply capacity. At the same time, to a certain extent, …

A typical representation of a mixed potential device is shown in Fig. 1. A solid-state cell of electrode 1/solid electrolyte/electrode 2 is constructed. Both electrodes are exposed to the analyte gas, usually a mixture containing oxygen and an oxidizable or reducible gas. Mixed potentials of different voltages develop on each electrode due to ...

The automatic control of top coal caving is of great significance to realize intelligent coal mining. In the process of top coal caving, a coal-gangue mixed area containing coal, gangue, and air is formed at the tail beam of the hydraulic support, which has different electromagnetic parameters, different volumes, and different shapes.

sities. However, the mixed potential theory requires a mixed electrode system. This is shown in Figure 5.1 for the classical pure zinc electrode immersed in hydrochloric …

A new mixed integer programming based model for transition-point problem in mining. ... This section illustrates the comparison between the result generated by the proposed model, single mining method and traditional transition model. ... Although this paper has demonstrated the potential of the proposed IP model to handle the …

Quantitative application of mixed potential theory requires a knowledge of individual electrode kinetics. From the individual electrode kinetics, mixed potentials …

Background and objective Recently, Electronic Health Records (EHR) are increasingly being converted to Common Data Models (CDMs), a database schema designed to provide standardized vocabularies to facilitate collaborative observational research. To date, however, rare attempts exist to leverage CDM data for healthcare …

However, despite the existence and application of these planning and scheduling guidelines and mathematical optimisation models, the inability to consistently deliver on planned mineral output in a dynamic operating environment is still one of the biggest challenges faced by underground mining operations to date (MacLean, …

Mining activities are the primary human-induced disturbances on plant communities in various ecosystems, and they also are important for implementing strategies of ecological protection and restoration based on them. The effects of underwater mining on plant communities in wetland ecosystems, however, are seldom demonstrated, and it …