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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The design, installation and operation of a crushing plant

McDonald, John Harry 06 1900 (has links)
No description available.
2

Dewatering rock crushing fines using geotextile tubes

Myers, William Scott. Elton, David J. January 2010 (has links)
Thesis--Auburn University, 2010. / Abstract. Vita. Includes bibliographic references (p.104-107).
3

Crushed stone fines and ion removal from clay slurries-fundamental studies

Guimaraes, María 05 1900 (has links)
No description available.
4

Optimisation of the quarrying, processing and utilisation of South Australian granite resources /

Chesini, Giambattista. Unknown Date (has links)
Thesis (MEng(MiningEngineering))--University of South Australia, 2001.
5

The new Chinese working class in struggle : a case study of collective action in gemstone industry /

Leung, Pak Nang. January 2007 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2007. / Includes bibliographical references (leaves 124-127). Also available in electronic version.
6

Štípaná kamenná industie v kontextu starší doby bronzové / Chipped stone industry in the context of the Early Bronze Age

Rychtaříková, Tereza January 2013 (has links)
This diploma thesis focuses on studies of chipped stone industry of the Early Bronze Age in Bohemia and deals with questions connected to its occurrence in settlement and burial sites. The first part of this study presents the results of artefact analysis. The anylised complex of artefacts consists of 108 items and originates in following localities: Kolín - ringroad, Pátek near Poděbrady, Polepy near Kolín, Velké Přílepy a Vliněves. The analysis included the typological and morphological characteristics, used material and the links to their position in settlement objects and other finds. The second part of this diploma thesis summarizes present knowledge of prestigious artefacts such as silicite daggers, axes and arrowheads. Furthermore, it investigates the matter of contacts between Central Bohemia and Moravia on the basis of Moravian stone materials distribution. A catalogue of chipped stone industy from Central Bohemia is also included in this diploma thesis.
7

Stenhuggaren på Korpåsberget : vilken bild förmedlas av stenhuggarens liv och arbete på Korpåsberget?

Andreasson, Anna January 2013 (has links)
My essay aims to explore, "What image is conveyed by the stone mason's life and work on Korpåsberget". In my essay I have been working with respondent interviews to examine the purpose. I've been trying to get interviewees to talk freely, but have also had a number of indicative questions for support.  In order to process and understand the interviews, I also have a part in the essay aiming to provide background information to the stone industry in Bohuslän, an area along the westcoast in Sweden, and foremost in the area of Bovallstrand. The text discusses the stone industry's development in the area, its development and the time until the stone industry at large was closed. As for the stone industry in Bovallstrand I have chosen to focus on the largest quarry in society, namely the Korpåsberget. The background text also briefly covers stonecutter’s lives and work. As a methodological viewpoint, I used literature on qualitative interviews.  Then I will discuss a report on the content of each interview. I at the end of the work, I then go through interview responses and analyze them in relation to my questions and purpose. Based on the essay, other questions were raised which I have also responded to. The interviews have shown that the interviewees' attitude, commitment or lack of such, and their relationship to their father affects the interviews.
8

K problematice poznání distribuce kamenných surovin na území západního okruhu kultury s lineární keramikou v neolitu / Remarks on raw material distribution in western LbK Culture region during the Neolithic

Pavlíčková, Eva January 2012 (has links)
This diploma thesis deals with the distribution of lithic raw materials in the Neolithic, whereas the main interest was focused on the area of Germany. The dispersion of chipped and polished stone artefacts in time and space was studied on the basis of available literature. The first part of this work presents existing knowledge about spreading specific types of lithic raw materials. The second part introduces sites from different federal states with finds of chipped and polished stone industry from which was it possible to determine the composition of lithic raw materials collections. The database is part of this work and includes catalogue of sites.
9

Affärssystem – Utmaningar och framgångsfaktorer för en framgångsrik implementeringsprocess : En multipel fallstudie för små- till medelstora företag verksamma i naturstensbranschen

Hildebertsson, Andrea, Ericsson, Kajsa January 2019 (has links)
Enterprise resource planning system (ERP system) is a standardized support system that aims to support the various functions of a company. Companies have different conditions for a successful implementation process due to the complexity of the ERP system. Implementation of ERP systems is also considered to be particularly difficult in small- to medium sized enterprises (SME) because the process is depending on resources. The natural stone industry is unique because of the natural material that require great adaptation and selection. Only about 20% of the material that is mined from the bedrock can be used for further production. SMEs and the natural stone industry have been dedicated to a little attention in research when it comes to implementation of ERP systems. Therefore, two knowledge gaps are identified where one gap represents a lack of literature on ERP systems for SMEs and the other represents the natural stone industry's unexplored conditions and challenges regarding the implementation of ERP systems. The purpose of this work is therefore to identify critical success factors as well as challenges small companies operating in the natural stone industry possess in order to implement an ERP system and how these companies can avoid a time-consuming process with high costs. To realize the purpose a survey was sent out to companies operating in the natural stone industry and are members of the Swedish Stone Industry Association. Thenceforth four interviews have been conducted with three companies who are members of the Swedish Stone Industry Association and a consultant working to implement ERP systems was interviewed. The theory is chosen based on the purpose and has been collected from scientific articles, literature and websites explaining key concepts for the work. Based on the findings, a model has been created to represent a cross-industry approach to achieve a successful process for ERP system implementation. The model aims to demonstrate an approach which is to create an awareness of any challenges that may arise. Challenges such as material characteristics, lack of leadership and lack of a holistic perspective. Based on these challenges, companies should then focus on success factors such as user attitudes for ERP, the use of project teams and a parallel test system to generate a successful implementation process. / Affärssystem är ett standardiserat verksamhetsbaserat stödsystem som syftar till att stödja en verksamhets olika funktioner. Verksamheter har olika förutsättningar för en lyckad implementeringsprocess på grund av affärssystemets komplexitet. Implementering av affärssystem anses även vara särskilt svårt i små- till medelstora företag (SMF) eftersom processen är resurskrävande. Naturstensbranschen är unik då det är naturmaterial som kräver stor anpassning och urval, endast ca 20% av materialet som bryts från berggrunden kan användas för vidare produktion. SMF och naturstensbranschen har blivit tillägnad lite uppmärksamhet inom forskning när det kommer till implementering av affärssystem. Därav har två kunskapsgap identifierats där det ena gapet representerar en avsaknad av litteratur om affärssystem för SMF och det andra representerar naturstensbranschens outforskade förutsättningar och utmaningar vid implementering av affärssystem. Syftet med detta arbete är därför att identifiera kritiska framgångsfaktorer såväl som utmaningar små företag verksamma i naturstensbranschen besitter för att kunna implementera ett affärssystem samt hur dessa företag kan undvika en kostsam och tidskrävande implementeringsprocess.  För att svara på syftet har en enkätundersökning genomförts med företag verksamma i naturstensbranschen som är medlemmar i Sveriges Stenindustriförbund. Därefter har fyra stycken intervjuer genomförts med tre stycken medlemsföretag i Sveriges Stenindustriförbund samt en konsult som jobbar med att implementera affärssystem. Teorin är vald utifrån arbetets syfte och frågeställningar och har samlats in från vetenskapliga artiklar, litteratur samt webbsidor som förklarar centrala begrepp för arbetet. Baserat på resultatet har en modell utformats för att representera ett branschövergripande tillvägagångssätt för att uppnå en framgångsrik implementeringsprocess av affärssystem. Modellen syftar till att visa ett tillvägagångssätt som går ut på att skapa en medvetenhet om eventuella utmaningar som kan uppstå vid implementering av affärssystem. Utmaningar som exempelvis materialets egenskaper, bristande ledarskap och avsaknad av helhetsperspektiv. Utifrån dessa utmaningar ska företagen sedan fokusera på framgångsfaktorer som användarnas inställning till affärssystemet, användning av projektteam samt ett parallellt testsystem ska generera en framgångsrik implementeringsprocess.
10

Upgrading no cluster de rochas ornamentais do Espírito Santo, Brasil / Upgrading the cluster of ornamental Espírito Santo, Brazil

Lennan, Maria Laura Ferranty Mac 20 December 2012 (has links)
Submitted by Odilio Hilario Moreira Júnior (odilio@espm.br) on 2016-11-29T16:01:25Z No. of bitstreams: 1 Maria Laura Ferranty Mac Lennan.pdf: 2358354 bytes, checksum: 3564a399dbcaea30be5186a2f99a7df2 (MD5) / Approved for entry into archive by Odilio Hilario Moreira Júnior (odilio@espm.br) on 2016-11-29T16:01:46Z (GMT) No. of bitstreams: 1 Maria Laura Ferranty Mac Lennan.pdf: 2358354 bytes, checksum: 3564a399dbcaea30be5186a2f99a7df2 (MD5) / Approved for entry into archive by Odilio Hilario Moreira Júnior (odilio@espm.br) on 2016-11-29T16:09:22Z (GMT) No. of bitstreams: 1 Maria Laura Ferranty Mac Lennan.pdf: 2358354 bytes, checksum: 3564a399dbcaea30be5186a2f99a7df2 (MD5) / Made available in DSpace on 2016-11-29T19:37:59Z (GMT). No. of bitstreams: 1 Maria Laura Ferranty Mac Lennan.pdf: 2358354 bytes, checksum: 3564a399dbcaea30be5186a2f99a7df2 (MD5) Previous issue date: 2012-12-20 / This work verifies the effects of governance of value chains upgrading of enterprises in the cluster of ornamental Espírito Santo, Brazil. The quantitative methodology was used to achieve the proposed objectives and respond to the research question. More specifically we conducted a survey of 32 companies affiliated to the Centre Rocks, located in the regions of Itapemirim and saws, Holy Spirit. Data were analyzed using parametric and non-parametric statistical techniques, given the type of sample distribution. The results indicate that firms in the cluster are embedded in value chains governance market type, the export performance has no direct relationship with the percentage exported and finally the upgrading of enterprises and their marketing investments impacting on the competitiveness of their sales to the foreign market. / A presente dissertação verifica os efeitos da governança das cadeias de valor no upgrading das empresas do cluster de rochas ornamentais do Espírito Santo, Brasil. A metodologia quantitativa foi utilizada para atingir os objetivos propostos e responder ao problema de pesquisa. Mais especificamente foi conduzida uma survey com 32 empresas filiadas ao Centro Rochas, localizadas nas regiões de Cachoeiro do Itapemirim e Serras, Espírito Santo. Os dados foram analisados com o uso de técnicas estatísticas paramétricas e não paramétricas, dado o tipo de distribuição amostral. Os resultados indicam que as empresas do cluster estão inseridas em cadeias de valor de governança do tipo mercado, o desempenho exportador não apresenta relação direta com os percentuais exportados e finalmente que o upgrading das empresas e seus investimentos em marketing impactam na competitividade de suas vendas para o mercado externo.

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