An investigation into the parameters affecting the performance of tube mills : the behaviour of a single particle on a corrugated liner inside a rotating cylinder

Includes bibliographical references.This thesis is the second stage of a project to investigate the parameters affecting the performance of tube mills. The main topics that the project will cover are the motion of the mill charge and the wear characteristics of the mill charge and mill liners. Nates, in his thesis, performed a literature survey that highlighted the need for an investigation into the motion of a particle with emphasis on the response to changes in the coefficient of friction between the particle and the liner. Nates developed theoretical models for a particle moving on the inside of a rotating liner. The models developed were for a block and sphere moving on a flat liner. Although a better understanding of the motion of a particle was achieved, the models did not take all the variables into account. One of the assumptions made by Nates was that the particle was moving on a flat liner. This thesis concentrates on the motion of a particle on a corrugated liner in a rotating cylinder. Two formulations are presented that model the motion of a particle. The first model assumes that the particle being modelled is a block. The modelling of the particle as a block ensures that the particle does not roll. There are two possibilities as to the type of motion which the block can experience. The first possibility is where the block moves at the same velocity as the - rotating liner whilst the second possibility is where the block can slide relative to the rotating liner. Three different liner configurations were used in the investigation of the motion of a block. The second model assumes that the particle can move with pure rolling as well as with a combination of rolling and sliding. For pure rolling it is assumed that at the point of contact between the sphere and liner that there is no skidding or sliding. The governing equations for the model of a block on a corrugated liner are solved numerically using a Fourth-Order Runge-Kutta Method. The theoretical predictions of the motion of a block on a corrugated liner are presented - and discussed. The model for a sphere on a corrugated liner was derived but no attempt was made to solve it numerically. It is envisaged that the numerical solution of the model for a sphere will be included in the next stage of the project. An experimental investigation was done to validate the theoretical model for a block on a corrugated liner. Only two of the three liners used in the numerical investigation were tested. There was good correlation between the experimental results and the theoretical predictions. All the experimental results are presented and comparisons made between the theoretical predictions and the experimental results. The thesis is concluded with a discussion of trends and observations made during the investigation into the motion of a block on a corrugated liner, and it is shown that the model for a block on a corrugated liner does satisfactorily predict the response of the block to varying initial conditions. Suggestions are also made as to possible ways to improve and expand on the current models used to describe the motion of a mill charge

Anthroposophic perspectives in primary care

A core challenge of contemporary medicine is to integrate the technological successes of biomedical science with a comprehensive under-standing of the physical, psychosocial, ecological, and spiritual dimensions of health and illness. Toward this end, bridges are being created between conventional medicine and alternative systems of healing which reflect a holistic model of the human being. Even when both conventional and complementary approaches are used side-by-side in the same patient, they remain separate in their basic assumptions and goals. Today\u27s mechanistic disease model is cut off from such notions as life-energy, consciousness, and spirituality, so integral to many alternative paradigms. Anthroposophically Extended Medicine (AEM) is a comprehensive healing system that successfully integrates biomedicine with a more complete understanding of human reality. Originating in Europe at the beginning of the 20th century, AEM has its roots in the Western, scientific worldview. By expanding this worldview, anthroposophy offers the clinician new possibilities for scientific investigation; it also creates bridges to the wisdom of older healing traditions of both East and West

Deductio Bentheimensis, In gestalt einer Des H.R. Reichs Churfursten, Fursten, Grafen Und Sambtlichen Sonderlich Evangelischen Herren Stenden, Und Deren Vortreflichen Abgesanten Zum Reichstag zu Regensburgh. Unterthänigsten/ Unterthänigen/ und Dienstfreundlichen beschwär-bericht-imploration und Bittschrift

DEDUCTIO BENTHEIMENSIS, IN GESTALT EINER DES H.R. REICHS CHURFURSTEN, FURSTEN, GRAFEN UND SAMBTLICHEN SONDERLICH EVANGELISCHEN HERREN STENDEN, UND DEREN VORTREFLICHEN ABGESANTEN ZUM REICHSTAG ZU REGENSBURGH. UNTERTHÄNIGSTEN/ UNTERTHÄNIGEN/ UND DIENSTFREUNDLICHEN BESCHWÄR-BERICHT-IMPLORATION UND BITTSCHRIFT Deductio Bentheimensis, In gestalt einer Des H.R. Reichs Churfursten, Fursten, Grafen Und Sambtlichen Sonderlich Evangelischen Herren Stenden, Und Deren Vortreflichen Abgesanten Zum Reichstag zu Regensburgh. Unterthänigsten/ Unterthänigen/ und Dienstfreundlichen beschwär-bericht-imploration und Bittschrift ([1]r) Titelseite ([1]r) Widmung ([1]v) Und verhält sich sie Sache demnächst dieser untenbewiesener gestalt (3) Folgen ingenante Beylagen zur Bentheimischen Deduction gehörig &c. ([1]r) No. I. - XX. ([1]r) No. XXI. - XL. ([8]v) No. XLI. - LX. ([15]r) No. LXI. - LXXX. ([26]r) No. LXXXI. - C. ([38]r) No. CI. - CXX. ([47]r) No. CXXI. - CLV. ([70]v

Ephraim Löb Bentheim Collection 1842, 1892

This collection contains Ephraim Löb Bentheim's will and a document from his charitable foundation about providing support to women in need of dowry and marriage assistance.The original German-language inventory is available in the folder.Processed for digitizationSent for digitizationReturned from digitizationLinked to online manifestationdigitize

Leitfaden zum Unterricht in den Kriegswissenschaften : mit Berücksichtigung der Anforderungen, welche nach den Verordnungen des Königlichen Preussischen Kriegs-Ministeriums bei den Officier-Prüfungen gemacht werden sollen : für Lehrer und zum Selbstunterricht

von F. von BentheimHandschriftliches Exlibris: "J.O. Schmid" 002159994_0001 Exemplar der ETH-BI

Narrative discourse in English speaking coloured persons with aphasia and normal controls in the Western Cape, South Africa

Bibliography: leaves 103-108.This study aimed to characterise the discourse performance of English speaking Coloured persons with mild to moderate aphasia and match controls. It ascertained whether various narrative discourse tasks resulted in differences in discourse performance between the two groups in the amount of information and the quality of information provided as well as the number of evaluative devices used in various narrative tasks. Furthermore, adaptation features, dialectal features and ethnic discourse markers were identified. A narrative Discourse Test Battery devised by Ulatowska et al (1998) consisting of two composite pictures, a picture sequence story, a story retell and a personal experience task were administered to all subjects. In order to gain further insight into higher level cognitive processes the formulation of main ideas, providing the lessons for the stories and interpreting proverbs were used. All narrative samples were transcribed and the date treated in terms of the length of narratives, propositional units, quality analysis and analysis of evaluation. The results indicated that for all of these methods of assessment the experimental group performed poorer than the control group

Disputatio Inauguralis De Jure Accrescendi

Quam, Ipsa Justitia Praeside Ex Decreto & Avtoritate Nobilissimi & Amplissimi JCtorum Ordinis in iclyta ac pervetusta Basileensium Academia Pro Summis in Utroque Jure Honoribus ac Privilegiis legitimè obtinendis, Solenniter defendet Bernhardus à Bentheim, Steinfurto-Westphalus Ad diem ... Decembris, An. M DC LII. Loco horisque consueti

Disputatio inauguralis de iure accrescendi

quam ... pro summis in utroque iure honoribus ac privilegiis legitimè obtinendis, solenniter defendet Bernhardus à Bentheim, Steinfurto-Westphalus ad diem ... decembris, an. M DC LII. loco horisque consuetisEnthält 27 ThesenDiss. iur. Basel, 165