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Dissertations / Theses on the topic 'Compaction Energy'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Parvizi, Mansour. "Centrifuge modelling of low energy dynamic compaction." Thesis, University of Manchester, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.495952.

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Low Energy Dynamic Compaction (LEDC) is a recently adopted approach for the rapid improvement of the mechanical behaviour of soil to a relatively shallow depth over a limited area. This method of compaction is termed `low energy' because the energy input per blow is low compared with that imparted by traditional dynamic compaction techniques. The field apparatus for this method was designed originally by BSP/DRA for the rapid repair of bomb damaged airfield runways, but later adopted as a method of ground improvement. This thesis describes the design and operation of a unique model compactor s

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2

Allen, Sarah. "The low energy dynamic compaction of soil." Thesis, Cardiff University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338145.

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3

Colley, Zahra J. Lee Yoon Y. "Compaction of switchgrass for value added utilization." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/master's/COLLEY_ZAHRA_56.pdf.

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4

Luangtana-Anan, Manee. "The role of surface free energy in the compaction of powders." Thesis, University of Manchester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329066.

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5

Puls, John Michael. "Compaction models for predicting moisture-density-energy relationships for earth materials." [Ames, Iowa : Iowa State University], 2008.

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6

Gebremeskel, Kiflat Yohannes. "The effect of filler type and shape on HMA energy dissipation performance." Thesis, KTH, Väg- och banteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-127706.

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Hot mix asphalt pavements require adequate compaction to achieve the required density to resist rutting. The amount of energy required to achieve the optimum degree of compaction depends on the type of gradation, bitumen content, filler type and shape, type of compaction equipment etc. In this study, the net energy required to reduce the specimen volume (size) after each gyration of the superpave gyratory compactor is used as the compaction energy index (CEI) to measure the compactability of the samples. Samples with different filler types and content are used for the analysis. Effect of fille

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7

Soman, Anand Vaidyanathan P. P. "New results on paraunitary filter banks : energy compaction properties, linear phase factorizations and relation to wavelets /." Diss., Pasadena, Calif. : California Institute of Technology, 1993. http://resolver.caltech.edu/CaltechETD:etd-10202005-094027.

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8

Green, Russell A. "Energy-Based Evaluation and Remediation of Liquefiable Soils." Diss., Virginia Tech, 2001. http://scholar.lib.vt.edu/theses/available/etd-08132001-170900.

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9

Azhdar, Bruska. "Novel Technique to Improve High-Velocity Cold Compaction : Processing of Polymer Powders and Polymer-Based Nanocomposite High Performance Components." Doctoral thesis, Stockholm : Department of Fiber and Polymer Technology, Chemical Science and Engineering, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4133.

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10

Sidou, Ney Barros de Avelino. "Adensamento do palhiço da cana-de-açucar utilizando helicoides conicos." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257005.

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Orientador: Oscar Antonio Braunbeck<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola<br>Made available in DSpace on 2018-08-12T03:37:50Z (GMT). No. of bitstreams: 1 Sidou_NeyBarrosdeAvelino_M.pdf: 3333411 bytes, checksum: 7ee0df98caa4c049f526e9c40d2c553e (MD5) Previous issue date: 2007<br>Resumo: O aumento da capacidade produtiva de energia elétrica por meios renováveis em curto prazo é fundamental para ao desenvolvimento de paises como o Brasil e o uso da fitomassa remanescente da cana-de-açúcar é uma opção viável e abundante em nosso país,entr

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11

Nogueira, Junior Gilmar. "Simulation discrète de la compaction et du frittage des poudres d'UOX et de MOX." Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALI008.

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Ce travail, réalisé en collaboration avec l'usine de recyclage Orano Melox, s'inscrit dans le contexte de l'industrie nucléaire française, qui joue un rôle central dans la production d'électricité du pays. La thèse est centrée sur la fabrication du combustible nucléaire à travers les étapes de compaction et de frittage des poudres nucléaires : les combustibles UOX (Uranium OXide) et MOX (Mixed OXide). La compaction uni-axiale induit un champ de densité hétérogène dans la pastille. Cette hétérogénéité est responsable d’une déformation radiale lors des étapes d’éjection et de frittage (effet dia

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12

Tilgen, Huseyin Pars. "Relationship Between Suction And Shear Strength Parameters Of Compacted Metu Campus Clay." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1300425/index.pdf.

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In this study, the relationship between soil suction and shear strength parameters of compacted METU campus clay were investigated at different moisture contents. Soil samples were tested at optimum moisture content (i.e. w=20.8%), at dry side of optimum moisture content (i.e. w=14.8%, 16.8%, 18.8%) and at wet side of optimum moisture content (i.e. w=22.8%, 24.8%, 26.8%). Direct shear tests were performed to measure shear strength parameters (c&#039<br>, &amp<br>#934<br>&#039<br>) and soil suctions were measured by filter paper method after direct shear tests. These relationships were also inv

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13

Segura, Salvador Albert. "High-performance and energy-efficient irregular graph processing on GPU architectures." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/671449.

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Graph processing is an established and prominent domain that is the foundation of new emerging applications in areas such as Data Analytics and Machine Learning, empowering applications such as road navigation, social networks and automatic speech recognition. The large amount of data employed in these domains requires high throughput architectures such as GPGPU. Although the processing of large graph-based workloads exhibits a high degree of parallelism, memory access patterns tend to be highly irregular, leading to poor efficiency due to memory divergence.In order to ameliorate these issues,

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14

Hage, Robert Becerra El. "Estudo de misturas asfálticas tipo Stone Matrix Asphalt (SMA) à luz dos compactadores Marshall e Superpave." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18143/tde-05092012-163002/.

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Este trabalho teve como objetivo principal investigar, do ponto de vista volumétrico, qual seria o número de giros necessário, no Compactador Giratório Superpave (CGS), para produzir corpos de prova com características similares aos produzidos com a energia 50 golpes no compactador Marshall, para misturas tipo Stone Matrix Asphalt (SMA) com volume de vazios igual a 4%. Como complemento, realizaram-se dosagens no CGS com 100 giros, visando avaliar o impacto do aumento da energia de compactação no teor de projeto, também para volume de vazios igual a 4%, em comparação aos CPs compactad

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15

Gouveia, Lilian Taís de. "Contribuições ao estudo da influência de propriedades de agregados no comportamento de misturas asfálticas densas." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18137/tde-13022007-171503/.

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O objetivo principal desta pesquisa é avaliar a influência que as propriedades estudadas dos agregados exercem sobre propriedades volumétricas e mecânicas de misturas asfálticas densas. Para tanto, foram avaliadas as propriedades de consenso e de origem, especificadas pelo Superpave, de um conjunto de agregados, além de suas densidades, porosidade, absorção e adesividade. Foram estudados agregados de gabro, basalto e areia natural e três tipos de granulometrias, uma denominada AZR, passando acima da zona de restrição da especificação Superpave, e outras duas, obtidas através do sistema de sele

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16

Namutebi, May. "Some Aspects of Foamed Bitumen Technology." Licentiate thesis, KTH, Väg- och banteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-32944.

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Although foamed bitumen has been widely applied in pavement construction some of its aspects are still not yet understood. In this study, some of these aspects including: effects of the foaming process on binder chemistry, characterization of foamed bitumen and development of a rational method to optimize foam characteristics, evaluation of aggregate particle coating within foamed bitumen treated materials, and development of a gyratory compaction procedure for laterite gravels treated with foamed bitumen were addressed. The effects of the foaming process on bitumen chemistry were investigated

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17

Zhang, Ou. "Compacting biomass waste materials for use as fuel /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3075412.

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18

Volkmer, Guilherme Lorenzatto. "Um objeto compacto exótico na relatividade geral pseudo-complexa." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/174845.

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O impacto que estruturas algébricas podem exercer em teorias físicas e bem ilustrado pela Mecânica Quântica, onde os números complexos são inquestionavelmente a escolha mais adequada para desenvolver a teoria. A Relatividade Geral pseudo-complexa avalia a possibilidade da interação gravitacional assumir sua descrição mais natural quando construída tendo como base os números pseudo-complexos, que consistem em uma das três possibilidades de números complexos abelianos com uma unica unidade imaginária. Esse conjunto numérico e dotado de elementos não nulos cujo produto e zero, tais números recebe

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19

Arroyave, Ortegón Jorge Andrés. "Desenvolvimento de um dissipador de calor compacto para o resfriamento de células fotovoltaicas de alta concentração (HCPV)." Ilha Solteira, 2018. http://hdl.handle.net/11449/154894.

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Orientador: Elaine Maria Cardoso<br>Resumo: A energia solar pode ser aproveitada como fonte de energia térmica para aquecimento de água, por exemplo, em coletores solares ou como fonte de energia elétrica usando sistemas de células fotovoltaicas. Entretanto, as células fotovoltaicas, geralmente, de custos relativamente altos, têm algumas restrições relacionadas a altas temperaturas de operação e distribuições de temperatura não homogêneas levando a redução da vida útil e eficiência elétrica de tais sistemas. Essas limitações têm sido o foco de pesquisas, a fim de melhorar as eficiências elétri

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20

Gunnarsson, Daniel, and Emanuel Strid. "Implementation of a Pump Control System for a Wheel Loader Application." Thesis, Linköping University, Department of Management and Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-15941.

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<p>A lot of today’s new developments strive for energy efficiency. This includes the hydraulic side of industry. The Division of Fluid andMechanical Engineering Systems of Linköpings University in collaboration with Volvo Construction Equipment in Eskilstuna has developed a newhydraulic concept when it comes to the control of cylinder loads in a wheel loader. The concept differs from today’s application, where the cylinderload is controlled via a valve, in the way that the load is solely controlled by a pump. To control this system, an electrical feed back of operatorsdemanded signal is needed

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Santos, Francisco Eulalio Alves dos. "Desenvolvimento e instalação de um cogerador compacto no campus da Universidade Federal do Acre." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264769.

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Orientadores: Carlos Alberto Luengo, Jose Luz Silveira<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-03T17:41:57Z (GMT). No. of bitstreams: 1 Santos_FranciscoEulalioAlvesdos_D.pdf: 9554331 bytes, checksum: aa14db7fa4bcdbb3040e87da04137442 (MD5) Previous issue date: 2001<br>Resumo: O emprego de motores alternativos a Diesel para geração apenas de energia elétrica é bastante difundido em todas as regiões do Brasil, principalmente no atendimento de emergência em hospitais, indústrias, shopping centers, serviços d

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22

Breidenich, Jennifer L. "Impact-initiated combustion of aluminum." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54403.

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This work focuses on understanding the impact-initiated combustion of aluminum powder compacts. Aluminum is typically one of the components of intermetallic-forming structural energetic materials (SEMs), which have the desirable combination of rapid release of thermal energy and high yield strength. Aluminum powders of various sizes and different levels of mechanical pre-activation are investigated to determine their reactivity under uniaxial stress rod-on-anvil impact conditions, using a 7.62 mm gas gun. The compacts reveal light emission due to combustion upon impact at velocities greate

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23

Reis, Joaquim Antônio dos [UNESP]. "Projeto e montagem de um sistema compacto de cogeração: aplicação da análise exergoeconômica." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/106421.

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Made available in DSpace on 2014-06-11T19:35:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-04Bitstream added on 2014-06-13T18:47:03Z : No. of bitstreams: 1 reis_ja_dr_guara.pdf: 3822491 bytes, checksum: c9fd5a88d775153288d737de07be90be (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Este trabalho desenvolve o projeto, aqui entendido como a seleção das unidades que atendam às exigências de obtenção de eletricidade, calor e frio, e a montagem de um sistema de cogeração que usa um motor de pequeno porte associado a uma máquina de absorção e trocadores

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Reis, Joaquim Antônio dos. "Projeto e montagem de um sistema compacto de cogeração : aplicação da análise exergoeconômica /." Guaratinguetá : [s.n.], 2006. http://hdl.handle.net/11449/106421.

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Resumo: Este trabalho desenvolve o projeto, aqui entendido como a seleção das unidades que atendam às exigências de obtenção de eletricidade, calor e frio, e a montagem de um sistema de cogeração que usa um motor de pequeno porte associado a uma máquina de absorção e trocadores de calor que satisfarão tais exigências de uma maneira a mais econômica possível, isto é, otimizado em termos de custos. Aplicando-se um método de obtenção dos custos associados à exergia, cria-se um quadro de custos exergéticos para a obtenção de cada produto, e a soma de cada custo constitui o que chama-se de custo de

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25

Rossa, Janilson Arcangelo. "Estudo teórico e experimental de um sistema compacto de cogeração consistindo de uma máquina de refrigeração por absorção água-amônia e uma microturbina." Florianópolis, SC, 2007. http://repositorio.ufsc.br/xmlui/handle/123456789/90643.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.<br>Made available in DSpace on 2012-10-23T13:24:02Z (GMT). No. of bitstreams: 0<br>A energia ocupa uma posição estratégica no mercado nacional, podendo ser considerada como insumo essencial à realização de praticamente todas as atividades humanas e ao desenvolvimento da sociedade. É compreensível a preocupação crescente e a importância de novos projetos de implantação ou ampliação da matriz energética brasileira, tanto em relação a geração como com a distribuiç

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26

Santos, Liane Ferreira dos. "A influência do patamar de cura térmica sobre a resistência dos concretos auto-adensáveis elaborados com diferentes tipos de cimento : avaliação pelo método da maturidade /." Ilha Solteira : [s.n.], 2010. http://hdl.handle.net/11449/94478.

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Orientador: Mônica Pinto Barbosa<br>Banca: Cassio Roberto Macedo Maia<br>Banca: Oswaldo Cascudo Matos<br>Resumo: O concreto auto-adensável (CAA) é um material que representa um dos maiores avanços na tecnologia do concreto das últimas décadas. O desenvolvimento do CAA propiciou eficiência e melhora nas condições de trabalho em canteiro de obras e na indústria de pré-moldados. Do ponto de vista reológico, o CAA é uma mistura fluida que proporciona diferenças de comportamento quando comparado ao concreto convencional. Neste contexto, a proposta desta pesquisa foi estudar, num primeiro plano, as

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Santos, Liane Ferreira dos [UNESP]. "A influência do patamar de cura térmica sobre a resistência dos concretos auto-adensáveis elaborados com diferentes tipos de cimento: avaliação pelo método da maturidade." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/94478.

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Made available in DSpace on 2014-06-11T19:27:13Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-04-26Bitstream added on 2014-06-13T20:16:15Z : No. of bitstreams: 1 santos_lf_me_ilha.pdf: 6137370 bytes, checksum: 5de758f11cce6406d87fe87638a96bb5 (MD5)<br>O concreto auto-adensável (CAA) é um material que representa um dos maiores avanços na tecnologia do concreto das últimas décadas. O desenvolvimento do CAA propiciou eficiência e melhora nas condições de trabalho em canteiro de obras e na indústria de pré-moldados. Do ponto de vista reológico, o CAA é uma mistura fluida que proporciona

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Svensson, Olle. "Experimental results from the Lysekil Wave Power Research Site." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-179098.

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This thesis presents how experimental results, from wave power research performed offshore at the Lysekil research site, were obtained. The data were used to verify theoretical models as well as evaluate the feasibility of wave power as a future sustainable energy source. The first experiments carried out at the research site was the measurement of the force in a line where one end was connected to a buoy with a diameter of 3 m and the other end to a set of springs with limited stroke length. The system is exposed to high peak forces compared to average forces. The maximum measured force in th

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Gullón, Juanes Miguel. "Population Synthesis of isolated Neutron Stars." Doctoral thesis, Universidad de Alicante, 2015. http://hdl.handle.net/10045/53162.

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Neutron Stars present a wide variety from the observational point of view. The advent of new and powerful detectors and instruments has opened a new era where the classical picture of neutrons stars seen as radio-pulsars has been modified with new classes such as magnetars, X-ray Isolated Neutron Stars (XINSs) or Central Compact Objects (CCOs) in Supernova Remnants . In addition to the more than 2500 sources detected in the radio band, more than two hundred have also been detected as X-ray and gamma-ray sources. This number is expected to increase in the near future. Despite this apparent dive

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Scott, Brendan Timothy. "The Impact of Rolling Dynamic Compaction." Thesis, 2020. http://hdl.handle.net/2440/123499.

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Rolling dynamic compaction (RDC) consists of a non-circular module of 3, 4 or 5 sides, that rotates as it is towed, causing it to fall to the ground and compact it dynamically. There is currently little guidance available for geotechnical practitioners regarding the depths of improvement that are possible in varying soil conditions. Current practice dictates that practitioners rely on personal experiences or available published project case studies that are limited in scope and applicability as they are typically aimed at achieving a project specification. There is a reluctance to adopt RDC as

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31

Yu, Chang-Rong, and 余長融. "The Influence of Compaction Energy on the Engineering Behavior of Kaolinite." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/53596850385540789918.

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碩士<br>義守大學<br>土木與生態工程學系碩士班<br>94<br>Compaction is one of the common methods used for soil improvement. The basic concept of compaction is imposing energy onto the soils in order to make the soils densified so that the properties of soils are enhanced. There are two different compaction methods,namely shallow and deep compaction. Shallow compaction is basically using the rolling machines to compact the soils by layers. Usually shallow compaction is widely used in the civil engineering, for examples the road engineering; runway of the airports; retaining walls and clay liners of the waste reposi

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Kasisira, Levi Lukoda. "Force modelling and energy optimization ofor subsoilers in tandem." 2004. http://upetd.up.ac.za/thesis/available/etd-05242005-103927.

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Rout, Shuvranshu Kumar. "Prediction of Relative Density of Sand with Particular Reference to Compaction Energy." Thesis, 2009. http://ethesis.nitrkl.ac.in/2792/1/Shuvranshu_Kumar_Rout_607CE001.pdf.

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Field compaction of sands usually involves different equipments with the compaction energy varying significantly. The relative density is the better indicator for specifying the compaction of granular soil. If the relative density can be correlated simply by any index property of the granular soil, it can be more useful in the field. The relative density is defined in terms of voids ratio. It is well known that the minimum and maximum voids ratio depend on the mean grain size. However, there is no direct relation available for the voids ratio in terms of grain size. Therefore, in this disserta

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Lin, Chien-Liang, and 林建良. "Development of relationship between compaction energy and influence depth and construction criteria in dynamic consolidation." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/83418112755664548790.

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碩士<br>國立海洋大學<br>河海工程學系<br>84<br>Dynamic Consolidation is a fairly simple technique which consists in delivering high energy impacts on to the ground to be compacted in order to densify the compressible soil at depth. It has been carried out on the test area of reclaimed site in Mailiao, and has performed excellent results in all the volume of soil treated. However, the interpretation of the dynamic consolidation method and the availability of the model developed should still

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35

Soman, Anand. "New results on paraunitary filter banks : energy compaction properties, linear phase factorizations and relation to wavelets." Thesis, 1993. https://thesis.library.caltech.edu/4190/1/Soman_ak_1993.pdf.

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Subband coding schemes have been widely used to encode signals from speech, high quality audio, and image sources. The theory of perfect reconstruction filter banks has also been studied extensively. The purpose of this thesis is to study the properties of the so-called paraunitary systems, and issues pertaining to their applications and implementations. We will begin by proving several properties of paraunitary filter banks. For example, we will prove that all orthonormal discrete-time wavelets can be generated using paraunitary binary trees. We will also extend this result to arbitrary tree

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Nayak, Avinas Kumar. "Effect of Compact Height and Compaction Pressure on Densification of Tungsten Dispersed and Yttria Dispersed Duplex Stainless Steel Fabricated by High Energy Planetary Milling Followed by Conventional Sintering." Thesis, 2016. http://ethesis.nitrkl.ac.in/9311/1/2016_MT_AKNayak.pdf.

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In the present investigation, elemental powder of Fe–18Cr–13Ni (all in wt. %) composition was used for the preparation of duplex stainless steel (DSS), tungsten dispersed and yttria dispersed duplex stainless steel (WDSS and YDSS) by adding 1 wt. % tungsten and 1 wt. % nano yttria to the composition respectively followed by 10 h milling in a dual drive planetary mill. The WDSS and YDSS milled powder were characterized by X-Ray diffraction, particle size analysis (PSA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to study the size, morphology and phase evolutio

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Almeida, Raul Fernando Silva. "Desenvolvimento de um filtro ativo paralelo monofásico compacto e didático utilizando MOSFETs." Master's thesis, 2013. http://hdl.handle.net/1822/39846.

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Dissertação de mestrado integrado em Engenharia Eletrónica Industrial e Computadores<br>A crescente modernização dos setores económicos e sociais, a par do aumento da qualidade de vida das pessoas, deve-se em larga escala à crescente utilização de equipamentos eletrónicos, capazes de realizar as mais variadas e complexas tarefas. Estes equipamentos absorvem correntes distorcidas, provocando efeitos prejudiciais à qualidade da energia no sistema elétrico, manifestando-se numa sequela de consequências, como aumento das perdas em diferentes dispositivos ou mesmo o mau funcionamento de deter

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