University of Huddersfield

About: University of Huddersfield is a education organization based out in Huddersfield, United Kingdom. It is known for research contribution in the topics: Context (language use) & Population. The organization has 5284 authors who have published 12246 publications receiving 218339 citations. The organization is also known as: Huddersfield University & The University of Huddersfield.

Machine Tool Error Identification AndCompensation Advice System

Abstract: The costs of addressing machining accuracy problems can often appear to exceed the perceived benefits of reducing rework or scrap etc. These costs arise from assigning time and resources to analysing and fixing the problems. There may also be costs associated with consultancy if the required expertise is not available in-house. When accuracy problems are addressed, a lack of knowledge in certain areas may lead to unsatisfactory solutions. This paper introduces a new expert system for addressing machine tool accuracy problems. The goal of this software is to be a Machine Tool Error Identification and Compensation Advice System (MTEICAS). Although in its early stages, the concepts and reasons behind the development of the software are described. An expert system development tool called Visual Prolog is being used to create the program, providing a number of advantages over traditional procedural languages such as C. Designed for use in industry, the software employs a descriptive graphical user interface for retrieving information about the current machining application, and displaying information regarding possible strategies for improvement. Utilising a comprehensive and easy to use help system, the software will guide the user through many aspects of machine tool calibration and implementation of compensation strategies. To provide validation, a number of users with varying levels of experience will apply the system in real applications. Transactions on Engineering Sciences vol 23, © 1999 WIT Press, www.witpress.com, ISSN 1743-3533

A Visual Experimental Noise Investigation of a Twin Calliper Disc Brake

Abstract: A twin caliper brake system is investigated using the whole body visual technique of holographic interferometry. It is shown that the disc mode of vibration has a preferred position where a disc antinode is situated under one caliper and a disc node under the second caliper. The maximum angular space occupied by the pad antinode is, as predicted by the theoretical study of the disc/pad interface geometry, the angle subtended by the pad length. For a four- piston opposed caliper the minimum distance is slightly larger than the piston centers. There is evidence that the disc mode position, in relation to the two calipers, may be antinode/node, node/node or antinode/antinode. With these arrangements an accompanying revised theoretical study of the disc/pad interface geometry predicts two stable conditions are possible - if the calipers are positioned either at an angle between 125\mD to 130\mD or 165\mD to 175\mD. The smaller angle was not tested but the brake became quiet at angles greater than 166\mD. A brief study of the caliper modes and pad spring retainer is included in the holographic results.

Classifying Spinal Measurements Using a Radial Basis Function Network

Abstract: Injuries to the lumbar region of industrial workers’ spines are relatively commonplace, due, for example, to over-exposure to vibrating machinery and inadequate provisions for heavy lifting In contrast with earlier decades, management is much more likely to be sued in a court of law if an employee suspects bad management practice Whereas severe damage to an individual’s lumbar region is usually apparent, typically because of immobility, less severe damage is harder to detect In such cases a court of law calls for an expert witness to gauge the extent of the damage that an employment environment may inflict on an individual’s spine

Accelerator-driven boron neutron capture therapy

Abstract: Boron Neutron Capture Therapy is a binary treatment for certain types of cancer. It works by loading the cancerous cells with a boron-10 carrying compound. This isotope has a large cross-section for thermal neutrons, the reaction producing a lithium nucleus and alpha particle that kill the cell in which they are produced. Recent studies of the boron carrier compound indicate that the uptake process works best in particularly aggressive cancers. Most studied is glioblastoma multiforme and a trial using a combination of BNCT and X-ray radiotherapy has shown an increase of nearly a factor of two in mean survival over the state of the art. However, the main technical problem with BNCT remains producing a sufficient flux of neutrons for a reasonable treatment duration in a hospital environment. This paper discusses this issue.