Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"Conveyor belt"”.
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Improving Conveyor Belt Safety Training Through the Use of Virtual Reality
Working around conveyor belts is the cause of numerous accidents each year that are costly to the mining industry. Current safety training practices generally include the use of slide show presentations, lectures, videos, and paper material before sending each worker onto site with an experienced …
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A machine vision-based approach to measuring the size distribution of rocks on a conveyor belt
… measuring the size distribution of rocks on a conveyor belt. The system has applications in automatic control and optimization of milling machines, and the selection of optimal blasting methods in the mining industry. Rock size is initially assumed to be the projected rock surface area due to …
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Design and construction of a vibration data logging prototype board for overland conveyor belts
Overland conveyor belt systems form a vital part of modern transportation systems in the mining and mineral processing industries. It is vital that the system is well maintained in order to minimise system downtime and maximise profit. The conveyor belt is the single most expensive item in the …
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Experimental manure handling systems for reducing airborne contamination
… across the dunging area, and a washed inclined conveyor belt used directly as a dunging area. Ammonia emissions were used as a measure of the air contamination originating from the excreta in two experimental chambers. Ammonia originates only from the manure and is released quickly from any …
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A machine vision system for classifying rectangular cabinet frames
… of kitchen cabinet frames that travel on a conveyor belt. For these components, it is possible to acquire silhouette images and perform two dimensional image analysis. Corner point locations are used as features which are compared with a database of known frame styles. This thesis describes …
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A Solution for Commodity Field Hauling with Self-Unloading Semi-Trailers
… the currently used chain and non-chain driven belt discharge devices are expensive and often problematic, requiring frequent maintenance and replacement. Furthermore, the discharge device also causes damage to the produce. This thesis provides innovative solutions to these two key problems and …
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Automatic, Careful Online Packing of Groceries Using a Soft Robotic Manipulator and Multimodal Sensing
… arbitrary shape, size and stiffness come down a conveyor belt. The proposed multimodal approach is supported by physical experiments demonstrating how the integration of multiple sensing modalities can address complex manipulation applications.
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Development of solutions to reduce variability in material flow at a factory
… at the site of transportation (a inter-floor conveyor belt). These limitations result in an inability to package and deliver all instruments produced within a given work week, causing a backlog of unpackaged instruments which spill over into the next work week. The aim of this project is to …
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On line tracking of moving objects from moving platforms
It is desired to position the end point of a conveyor belt, which carries material removed by a moving pavement trimmer, above the bed of a moving dump truck. The present report describes the analytical design and practical control of a tracking system for positioning the conveyor. Initial tests …
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Modelling mechanical systems
… solution. To this end, a concept model of a conveyor sorting system was developed using Lego as the design medium. The model is a conveyor belt along which coloured blocks are sorted into bins by pneumatic cylinders. The model is controlled by a personal computer and the Lego interface box. …
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Cults: A Psychological Perspective
… identity of cult members was analyzed using a conveyor belt type method starting with social-identity followed by self-categorization and ending with deindividualization. Cult members then make decisions using a funnel-type of model starting with the charismatic leader, followed by propaganda, …
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Development of a machine vision based oyster meat sorter
… sorting process. The machine consists of a dark conveyor belt transporting singulated oysters through a grading station and then along a row of fast acting water jet valves which separates the stream of oysters into 3 classes. The vision system consists of a monochrome television camera, flash …
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Development of a dynamic multi-belt scale for IQF sorting
… features smaller dimensions, a lower pitch conveyor belt and a different load cell with optimal capacity. Four configurations were tested; two spacing support piece materials and two types of load cell. Previous dynamic weighing products by Valka are capable of delivering a 95% confidence …
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Energy audit methodology for belt conveyors
… the largest components of operating costs on a belt conveyor system. This dissertation introduces a unique Conveyor Electricity Cost Efficiency Audit Methodology (CECEAM). In the CECEAM the conveyor system is evaluated from a high to detail level in order to identify opportunities to improve …
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Unsupervised Machine Learning Application for the Identification of Kimberlite Ore Facie using Convolutional Neural Networks and Deep Embedded Clustering
… couple of seconds of material on the main feed conveyor belt into the Kao Diamond Mine processing plant. The modelling phase of the research is implemented in two stages. The first stage involves the implementation of a Mask Region-based Convolutional Neural Network (Mask R-CNN) model with a …
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Model-based optimisation approaches for system energy performance improvement and evaluation
… problems, for example, they are able to optimise conveyor belt system energy performance, avoid ramp rate violation problem in the periodic implementation of dynamic economic dispatch solutions, reduce the number of voltage sensors in photovoltaic (PV) fault diagnosis, improve PV maximum power …
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Developing an Automated Explosives Detection Prototype Based on the AS&E 101ZZ System
… bypassed: the x-ray source controller and conveyor belt motor were made computer controllable; the x-ray detectors were re-positioned to provide forward scatter detection capabilities; new hardware was developed to interface to the AS&E pre-amplifier boards, to collect image data from all …
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The detection and identification of extraneous metals in material conveyance systems
… between them and locate the object along the belt and on the width of the belt. The magnetic induction mechanism was used as a means of achieving the objectives of this research. In order to choose the appropriate geometry and size of the induction field source, the field distributions of …
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Effect of Recycling Stream Contaminants on Extrusion and Mechanical Properties of rPET
… using a stationary horizontal extruder and a conveyor belt. The mass flow rate was determined from the mass of strands to quantify the quality of extrusion. No significant effect of contamination level on mass flow rate was measured. The strength of the parts was determined using a tensile …
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Improving Object Classification in X-ray Luggage Inspection
… object may be randomly placed anywhere on the conveyor belt, resulting in a variation in the detected signals. Both an adaptive modeling technique and least squares method are used to decrease this distance effect. Finally, discriminate function methods have been studied experimentally, and …
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