Дисертації з теми "CONSOLIDATION BEHAVIOR"
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Bylander, Thomas C. "Consolidation : a method for reasoning about the behavior of devices /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487266691095527.
Повний текст джерелаCasey, Brendan (Brendan Anthony). "The consolidation and strength behavior of mechanically compressed fine-grained sediments." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90039.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 251-259).
This thesis investigates the consolidation and shear strength behavior of saturated fine-grained sediments over the effective stress range of 0.1 to 100 MPa. The research makes use of samples which are resedimented in the laboratory from natural soils. In addition to practical benefits, resedimentation allows for isolation and quantification of individual factors influencing behavior such as composition, consolidation stress and overconsolidation ratio (OCR). Ko-consolidated triaxial compression tests were performed on eight resedimented soils at room temperature. The results demonstrate conclusively that the conventional assumption of these soils exhibiting constant normalized properties is not valid when behavior is evaluated over a significant stress range. The direction and rate at which a soil's strength properties vary depend on its composition, with high plasticity soils showing a much more rapid reduction in both normalized undrained strength and critical state friction angle with increasing stress compared to low plasticity soils. For all soils, increasing consolidation stress results in a more ductile stress-strain response during undrained shearing as strain to failure increases and the amount of post-peak strain softening reduces at each OCR. Variations in strength properties as a function of stress level and soil type are closely linked to Ko, with higher values of Ko associated with both lower friction angles and lower undrained strengths. During virgin compression, high plasticity soils display a rapid increase in Ko and values in excess of 0.80 have been measured at high stresses. The permeability behavior of a large number of resedimented soils has been investigated over a permeability range of 10-¹⁴ m² to 10-²⁰ m² and a porosity range of about 0.75 to 0.20. The permeability-porosity relationship for a soil can be correlated to its liquid limit, which provides a robust indicator of the combined effects of pore size distribution and clay minealogy on behavior. Virgin compression behavior is strongly influenced by composition at low stresses, although at high stresses all fine-grained soils display a similar compression behavior regardless of their composition. The conventional 'Terzaghi' definition of effective stress is shown to be applicable to fine-grained sediments at pore pressures up to at least 10 MPa.
by Brendan Casey.
Ph. D. in Geotechnical and Geoenvironmental Engineering
Hansen, Steven Matthew. "Influence of Consolidation and Interweaving on Compression Behavior of IsoTruss™ Structures." BYU ScholarsArchive, 2004. https://scholarsarchive.byu.edu/etd/15.
Повний текст джерелаNam, Sookie. "Settling and sedimentation behavior of fine-grained materials." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/42677.
Повний текст джерелаMaster of Science
Budnik, Aimee Helen. ""IDENTIFYING PREDICTORS FOR PRIMARY PREVENTION ACTIVITIES IN LOCAL HEALTH DEPARTMENTS: UNDERSTANDING THE ROLE OF CONSOLIDATION"." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1543629941331548.
Повний текст джерелаXu, Dapeng. "Time effects on soil behavior : a particulate-scale study on the mechanisms of secondary consolidation and ageing /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202006%20XU.
Повний текст джерелаKarim, Md Rezaul. "Simulation of long-term consolidation behavior of soft sensitive clay using an elasto-viscoplastic constitutive model." 京都大学 (Kyoto University), 2006. http://hdl.handle.net/2433/136140.
Повний текст джерелаLent, David D. "Learning and Memory and Supporting Neural Architecture in the Cockroach, Periplaneta americana." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/193804.
Повний текст джерелаDenham, Martha H. "The Use of Laboratory Testing to Understand the Behavior of Collapsible Soil Upon Wetting." PDXScholar, 1992. https://pdxscholar.library.pdx.edu/open_access_etds/4664.
Повний текст джерелаChen, Tao. "The mechanical properties and oxidation behavior of nanocrystalline NiAl synthesized via shock consolidation of mechanically alloyed powders of Ni and Al." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/20029.
Повний текст джерелаEllmore, Timothy Michael. "The Speed of Associative Learning and Retrieval in Humans and Non-Human Primates." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/195717.
Повний текст джерелаYun, SeongKyu. "Development of the numerical procedure to describe multi-dimensional behavior of the alternating Pleistocene foundations." Kyoto University, 2020. http://hdl.handle.net/2433/245842.
Повний текст джерелаFerreira, de Medeiros Gabriela. "Impact of CBG deficiency on emotional and cognitive processes." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0072/document.
Повний текст джерелаThe great diversity in the response to stress observed among individuals originates from their genetic background in interaction with environmental factors. Some responses can be less adaptive and increase the vulnerability to develop stress-associated disorders. CBG is a plasma glycoprotein that regulates the bioavailability of glucocorticoids, one of the main mediators of the stress response. Genetic studies pointed out variations in the gene coding for CBG as a major factor influencing the glucocorticoid response to stress. To better understand the mechanisms involved and the consequences on endocrine and behavioral responses to stress, our team has developed a mouse model of CBG deficiency. These mice present blunted glucocorticoid response to stress associated with increased despair-like behaviors. This thesis aimed at further exploring the physiological and behavioral alterations presented by the Cbg ko mice. We showed that the lower glucocorticoid levels observed in Cbg ko mice stems from their higher clearance from plasma. A study performed on Cbg ko female mice revealed that estrogens outpass CBG deficiency in inducing despair-like behavior. Additionally, we evidenced that CBG deficiency leads to lower behavioral and endocrine sensitivity to chronic stress, and we observed impairment of hippocampal-dependent long-term memory in these mice. Finally, we found that chronic stress combined to high-fat diet leads to alteration in glucose metabolism in CBG deficient animals. These findings reinforce the important role of CBG influencing the broad range of actions of glucocorticoids by modulating their levels and availability
Weinblatt, Brian. "An Examination of Academic Decision-Making During Two University Mergers." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1341245360.
Повний текст джерелаDe, Sousa Vanessa Alexandre. "The impact of a merger on the motivational levels and organisational culture of amalgamated beverage industries employees in country region." Thesis, Bloemfontein : Central University of Technology, Free State, 2006. http://hdl.handle.net/11462/69.
Повний текст джерелаIn today’s dynamic and uncertain business environment, employees are required to work together to achieve a common goal. An organisation cannot survive without a highly motivated and progressive workforce. Management need to be highly innovative and adaptive, to survive the intensity of competition and change. This study is based on the conviction that enhancing and sustaining employee motivation is a manager’s major function. In effect, management need to create and maintain a culture that fosters motivation, and determine whether employees are culturally adaptable, when two established cultures merge as one. Against this background, the focus fell on attaining optimum performance and a culture that evokes a spirit of co-operation and is conducive to motivating employees to work willingly and effectively. The Amalgamated Beverage Industry was selected for the purpose of this study. The perceptions and opinions of management and that of the lower level employees were examined to determine the impact on the work motivational levels and organiastional culture within Country Region employees. A probable influence was also given on the possible factors contributing to the maintained level of organisational culture and the high motivational levels within ABI. Attention was also focused on culture change and its possible impact on employees.
Dal, Bó Micheli. "Comunicação e comportamento organizacional no contexto de aquisição de empresa." reponame:Repositório Institucional da UCS, 2015. https://repositorio.ucs.br/handle/11338/1376.
Повний текст джерелаSubmitted by Ana Guimarães Pereira (agpereir@ucs.br) on 2016-11-22T15:25:16Z No. of bitstreams: 1 Dissertacao Micheli Dal Bó.pdf: 1360808 bytes, checksum: fddb12653e1893d4fde09601f058df52 (MD5)
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Companies seek, in addition to survival, differentiate themselves in a competitive environment. In this way, operations of M&A (merger and acquisition) are common businessevents, bringing structural and cultural changes and affecting organizational behavior in affected companies. This may cause resistance to the proposed changes, which can determine failure of the M&A process. In this context, communication can be critical and can help the change process as a whole. This research aimed to analyze the relationship between communication and dimensions of organizational behavior in an environment of changes by way of acquisition. The method was exploratory (case study) and quantitative. A survey questionnaire was applied to 258 people randomly selected from a population of 584 front line employees. The data were analyzed using the SPSS software version 22.0. Main results indicate that communication has positive and significant correlation with motivation, opportunity to participate, uncertainty about the future and organizational commitment. In the analysis of demographic data, it was observed that organizational commitment has significant variability in relation to age of the respondents. Motivation due to external rewards had significant variability in relation to respondents who reside or not in the village built on the company's property. Level of education responded for significant variability in organizational commitment and motivation due to satisfaction of basic needs.
Hopeck, Janell Marie. "Face-to-face communication versus memo communication to announce mergers and acquisitions the importance of media richness." CSUSB ScholarWorks, 2011. https://scholarworks.lib.csusb.edu/etd-project/140.
Повний текст джерелаThomas, Stephen David. "The consolidation behaviour of gassy soil." Thesis, University of Oxford, 1987. http://ora.ox.ac.uk/objects/uuid:f13acb0c-3e1b-4122-b497-341869846561.
Повний текст джерелаKavanaugh, Bryan Palmer Schindler Anton K. "Creep behavior of self-consolidating concrete." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SUMMER/Civil_Engineering/Thesis/Kavanaugh_Bryan_38.pdf.
Повний текст джерелаBeusch, Peter. "Contradicting management control ideologies : a study of integration processes following cross-border acquisitions of large multinationals /." Göteborg : BAS Publ, 2007. http://www.gbv.de/dms/zbw/548620407.pdf.
Повний текст джерелаRui, Charles. "Cidadania organizacional e outras variáveis comportamentais atuantes em um ambiente de fusão." reponame:Repositório Institucional da UCS, 2011. https://repositorio.ucs.br/handle/11338/605.
Повний текст джерелаSubmitted by Marcelo Teixeira (mvteixeira@ucs.br) on 2014-06-05T16:07:10Z No. of bitstreams: 1 Dissertacao Charles Rui.pdf: 2448400 bytes, checksum: cdd07738126dd6361aeb34d131e344ba (MD5)
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Organizations change their management practices, sometimes after a process of merging, due to external factors such as changes or social, politics, environmental, and economic problems. It also happens due to internal variables such as financial health, management styles, cultural differences, different levels of knowledge, reduced commitment, fear, and others that may influence behavior of the organizations. The company, focus of this research, named Alpha, with the strategic purpose of expanding their businesses and to be more competitive in the market, sold part of it s shareholding (49%) to a company described as Beta in December, 2008. Within this context, this research was carried out with Alfa employees, in Caxias do Sul. The purpose of this study was to measure aspects of organizational behavior in a company merger environment. The research was classified as quantitative, exploratory (a case study), in which the data were processed using statistical techniques like factor analysis, Anova and multiple regression analysis. Pre-tested scales were used for the organizational behavior set and a new scale was developed to measure and identify the qualifying variables in a merger environment. The results identified moderate degrees of organizational behavior among the respondents, with significant variability in different sample subgroups. The significant behavioral variables extracted from the research instrument were: organizational commitment, organizational citizenship (initiative, loyalty and fidelity), and job satisfaction. The merger qualifying variables extracted were: work and task, motivation, and communication. It was noticed that the set of behavioral variables identified may be responsible for defining organizational culture, which represents the way of acting, leading, resolving conflicts, solving problems, achieving results, i.e., the way of managing the company.
Ovando, Shelley Efrain. "Stress-strain behaviour of granular soils tested in the triaxial cell." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/7891.
Повний текст джерелаHarb, H. M. "An investigation into the normal consolidation behaviour of viscous clays." Thesis, Bucks New University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378379.
Повний текст джерелаJarad, Nidal. "Temperature impact on the consolidation and creep behaviour of compacted clayey soils." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0251/document.
Повний текст джерелаConsolidation of clay soils is one of the main challenges in engineering design and construction. Clayey soils could be exposed to thermal cycles in some engineering applications such as geothermal piles, nuclear waste storages, heat storage in embankments, etc. These temperature changes could affect the primary consolidation as well as the creep behaviour of the soils. In this context, this study investigated the impact of temperature on consolidation behaviour and creep behaviour of saturated compacted clays. In addition, the impact of stress history and clay nature on the temperature dependent mechanical and hydraulic behaviours was also considered. Temperature controlled oedometric cells were employed to perform constant rate of strain (CRS) consolidation tests for different strain rates (0.002%/min to 0.02%/min) within a temperature range of 5° C to 70o C. Two different compacted saturated clays with different stress histories were used in these CRS tests (clay A: PI=31%, clay B: PI=23.8%). The results showed that the compression and swelling indices for both materials changed slightly with temperature and strain rate alteration. The preconsolidation pressure of both clays decreased as the temperature increased, but less in the case of clay B, while it decreased as the strain rate decreased for both materials. The hydraulic conductivity increased with temperature while the intrinsic permeability remained unchanged in the investigated range of temperature. The creep index increased as the temperature increased for both clays. In addition, the stress history has an impact on the temperature dependent mechanical and hydraulic behaviour of clay soils. Results showed a thermal dilation for highly overconsolidated soils and a thermal contraction for low and normally consolidated samples. The relative impact of several parameters on the modification of the behaviour of compacted clays with temperature was also assessed
Chan, Chung Yie. "Centrifuge modelling of behaviour of piles in consolidating ground /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202004%20CHAN.
Повний текст джерелаIncludes bibliographical references (leaves 180-185). Also available in electronic version. Access restricted to campus users.
Nguyen, Van Tuan. "Apport de la modélisation multiphasique à l’analyse du comportement macroscopique de matériaux renforcés par fibres." Thesis, Paris Est, 2013. http://www.theses.fr/2013PEST1034/document.
Повний текст джерелаA multiphase model has been recently developed and integrated into a finite element based code for the analysis and design of soil structures reinforced with linear inclusions. This approach is extended to account for the macroscopic behavior of fiber reinforced materials such as plaster, concrete fiber, soil reinforced by short fibers and bone tissues, which are constituted of a matrix and a distribution of continuously oriented fibers. The proposed model is performed to evaluate the elastic macroscopic stiffness of the composite material, the obtained results are compared to those deriving from the dilute and Mori-Tanaka estimations. The model is then extended to take into account a nonelastic behavior of the constituents. Starting from the derivation of some analytical solutions to boundary value problems involving fiber reinforced materials in the context of elasto-plastic and brittle behavior of the matrix and fibers, a f.e.m.-based code is developed and applied to simulating the behavior of some typical structures
Ting, Chi Man Roger. "Controlled gradient consolidation of soft soils with reference to the development of Kâ†o." Thesis, University of East London, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.258762.
Повний текст джерелаCohen, Michael I. "Structural Behaviour of Self Consolidating Steel Fiber Reinforced Concrete Beams." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23101.
Повний текст джерелаKumar, Garimella Vijaya. "Some aspects of the mechanical behaviour of mixtures of kaolin and coarse sand." Thesis, University of Glasgow, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318903.
Повний текст джерелаKhansari, Hossein. "An investigation of one-dimensional compression and consolidation of intact and reconstituted Bothkennar soft soil." Thesis, University of the West of England, Bristol, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337381.
Повний текст джерелаLevy, Kelly Rebecca. "Bond behavior of prestressed reinforcement in beams constructed with self-consolidating concrete." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2007%20Spring%20Theses/LEVY_KELLY_6.pdf.
Повний текст джерелаBennion, Kelly Ann. "How sleep affects memory for future-relevant information: Behavioral and neuroimaging investigations." Thesis, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:107196.
Повний текст джерелаResearch in three parts investigated sleep’s preferential consolidation of memories for experiences that are prioritized at encoding due to intrinsic characteristics (e.g., emotion), extrinsic characteristics (e.g., instructed learning, reward), or both. Results showed that sleep broadly strengthens memory for future-relevant information, with these prioritization cues at encoding aiding in the selection process for what is subsequently strengthened during sleep. Part I investigated the effects of sleep on the consolidation of information that was prioritized at encoding due to the intrinsic cue of emotion. Results showed that even once the emotionally salient aspect of the stimuli was removed (i.e., when memory was tested using a neutral cue), residual effects of emotion were reflected in enhanced visual activity following sleep, with this visual activity correlating with the percentage of rapid eye movement sleep obtained during consolidation and likely driven by enhanced occipital-hippocampal connectivity following sleep. This suggests that sleep prioritizes information that was salient due to the intrinsic cue of emotion at encoding, leading to changes in neural activity during retrieval even once that intrinsic cue is no longer present. As in Part I, most prior research has examined how sleep preferentially consolidates memory for information that is salient due to a single cue for future relevance. Part II investigated whether future relevance can be assigned to stimuli via top-down manipulations (i.e., extrinsic prioritization cues), as well as how sleep prioritizes memory for information when intrinsic and extrinsic cues for future relevance co-occur within the same stimuli. Results suggest that when multiple dimensions of future relevance co-occur, sleep prioritizes extrinsic cues (i.e., instructed learning, and to a lesser degree, reward) over intrinsic cues (i.e., emotion). Further, results suggest that additional cues for future relevance do not have additive effects on consolidation, but rather that sleep may binarize information based on whether it is future-relevant or not, preferentially consolidating memory for the former category. Lastly, Part III focused on a manipulation of extrinsic prioritization at encoding to investigate both how the effects of prioritization on memory differ minutes after encoding relative to after long-term consolidation processes take place, and also whether these effects depend on if a healthy versus restricted amount of nocturnal sleep is obtained during the consolidation interval. Results showed that a top-down manipulation of prioritization (i.e., typographical cueing) was effective in enhancing memory; highlighted relative to non-highlighted content was better remembered at multiple time points, with evidence suggesting that N3 (slow-wave) sleep may contribute to these memorial benefits. Together, findings across Parts I-III suggest that sleep selectively strengthens future-relevant information, elucidating which cues for future relevance at the time of encoding lead to enhanced consolidation following sleep, as well as how sleep acts on intrinsic and extrinsic prioritization cues when they co-occur. In identifying intrinsic targets of sleep’s selective consolidation effects, as well as extrinsic manipulations that can be applied to use sleep as a tool to enhance consolidation, these three studies have important implications for optimizing memory that are relevant across domains
Thesis (PhD) — Boston College, 2016
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Psychology
Ahmed, Syed Iftekhar. "A new approach for modeling the non-linear one dimensional consolidation behaviour of tailings." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44810.
Повний текст джерелаPhang, Ignatius Ren Kai. "Investigation of Strength and Consolidation Behaviour of Peat Treated Using Microbial-Induced Calcite Precipitation (MICP)." Thesis, Curtin University, 2021. http://hdl.handle.net/20.500.11937/86928.
Повний текст джерелаGreen, Willie III. "The Impact of City-County Consolidation upon Political Participation within Rural Georgia." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2016. http://digitalcommons.auctr.edu/cauetds/42.
Повний текст джерелаBartholomeeusen, Gert. "Compound shock waves and creep behaviour in sediment beds." Thesis, University of Oxford, 2003. http://ora.ox.ac.uk/objects/uuid:f1ba2e5c-60b7-4d18-ae02-69356a289290.
Повний текст джерелаVu, The Manh. "Comportement des tunnels en terrains tectonisés : application à la liaison ferroviaire Lyon-Turin." Phd thesis, Université Paris-Est, 2010. http://tel.archives-ouvertes.fr/tel-00601061.
Повний текст джерелаElder, Donald McGillivray. "Stress strain and strength behaviour of very soft soil sediment." Thesis, University of Oxford, 1985. http://ora.ox.ac.uk/objects/uuid:48050e2f-832d-47f4-9e3b-b922176f451b.
Повний текст джерелаChiu, Sing-Lok. "Behaviour of normally consolidated clay at elevated temperature." Thesis, The University of Sydney, 1996. http://hdl.handle.net/2123/18126.
Повний текст джерелаAghniaey, Nima. "Behaviour of Self Consolidating Steel Fiber Reinforced Concrete Beams Under Reversed Cyclic Loading." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/23785.
Повний текст джерелаSariñana, Joshua Jr. "Genetic and behavioral discrimination of dopamine 1 and 5 receptors in hippocampal dependent memory consolidation." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/68424.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references.
Dopamine (DA) containing neurons project throughout the brain. DA has been implicated in mediating brain disorders such as Schizophrenia, Parkinson's disease, Huntington's disease and drug addiction. The role of DA in working memory and procedural learning is also well established. DA is a ubiquitous neurotransmitter that affects much of the brain, but very little is known how dopamine functions in hippocampal dependent learning. It was only until recently that dopamine-containing neurons were found to project to the hippocampus. Even less understood are the expression patterns of DA receptors within the hippocampus and this is underlined by the inability of distinguishing the dopamine 1 receptor family (D1 and 5 receptors (D1/D5Rs)). Given the interaction of the D1 family with similar G-protein coupled receptors it has been assumed that these two receptors function in an analogous fashion. Additionally, the specific expressional pattern of each receptor lacks clarity due to non-specific binding by molecular probes. Moreover, D1 and D5 pharmacological and global KO studies cannot and have not functionally delineated D1Rs from D5Rs and global KOs of the D1Rs or D5Rs are not specific to the hippocampus, thus compensatory mechanisms likely ameliorate most physiological and behavioral deficits. Still, the aforementioned studies do point to the D1 family in modulating hippocampal synaptic plasticity, learning and memory consolidation. In order to characterize D1Rs distinctly from D5Rs we have generated three strains of conditional mutant mice (D1 KO, D5 KO, D1/5 KO). I present data that shows distinct expression patterns within the hippocampus, the importance of D1 Rs and D5Rs in modulating hippocampal plasticity, and hippocampal dependent learning. These data highlight distinct functional roles of D1Rs and D5Rs in hippocampal function.
by Joshua Sariñana Jr.
Ph.D.
PEREIRA, ERIC VALLOTTI. "INFLUENCE OF STEEL FIBERS IN THE MECHANICAL BEHAVIOR AND CRACKING MECHANISMS OF SELF-CONSOLIDATING CONCRETES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2017. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=31466@1.
Повний текст джерелаCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE EXCELENCIA ACADEMICA
No presente trabalho foi investigado o comportamento mecânico de um concreto autoadensável reforçado com fibras de aço. Foram utilizadas fibras de aço torcidas e com ganchos, nos comprimentos de 25, 30 e 60 mm e diâmetros de 0,5, 0,62 e 0,75 mm. Para cada uma destas fibras e para cada uma das frações volumétricas investigadas (0,5, 1,0 e 2,0 por cento) foram realizados os ensaios de flexão em quatro pontos em corpos de prova prismáticos e de tração direta em corpos de prova do tipo dog bone shaped. Nos ensaios de flexão, os índices de tenacidade e as cargas residuais foram contabilizados. Alternativamente, determinou-se a energia absorvida nos ensaios de flexão de painéis circulares conforme a ASTM C1550, cuja abertura de fissuras foi medida com o auxílio de transdutores de deslocamento. Os corpos de prova reforçados com fibras de aço submetidos à tração direta se mostraram mais dúcteis com relação à matriz de concreto autoadensável, observando-se grande influência do volume e comprimento ancorado das fibras nas cargas residuais da zona de pós-fissuração. Nos ensaios de flexão, observaram-se grandes incrementos na tenacidade e deformações correspondentes às cargas residuais. Por fim, analisou-se a influência desses concretos no comportamento de vigas armadas sujeitas à flexão. A evolução da abertura de fissuras foi monitorada com sistema de correlação digital de imagens, sendo posteriormente correlacionadas com cargas aplicadas e com os deslocamentos obtidos nos ensaios. Observou-se nestes ensaios, que o reforço fibroso aumentou a capacidade de carga e a rigidez à flexão, atrasando consideravelmente o surgimento de fissuras.
In the present work the mechanical behavior of a self-consolidating concrete reinforced with steel fibers was investigated. Twisted and hooked end steel fibers were used in lengths of 25, 30 and 60 mm and diameters of 0.5, 0.62 e 0.75 mm. For each of these fibers and for each volumetric fractions investigated (0.5, 1.0 and 2.0 percent), the four-point bending tests on prismatic specimens and direct tensile in dog bone shape specimens were performed. In the flexural tests, the toughness and residual strengths were computed. Alternatively, the energy absorption capacity in the round panel tests was determined following the ASTM C1550. During the test the crack opening was measured through displacement transducers. The steel fiber reinforced concrete subject to direct tensile loading was more ductile than the self-consolidating concrete matrix, showing a high influence of the volume and embedded length of the fibers in the residual loads in the post-cracking zone. In the bending tests, a large increase in the toughness and strains corresponding to the residual loads were observed. Finally, the influence of the fiber reinforced concretes on the behavior of reinforced beams subject to bending was investigated. The evolution of the crack openings was monitored with a digital image correlation system and correlated to the applied load and displacements. It was observed in these tests that the fibrous reinforcement considerably increased the load capacity and flexural stiffness, delaying the crack growth.
Huang, Chou-Hui, and 黃綢輝. "Consolidation Behavior under Time Dependent Loading." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/25892148722576680863.
Повний текст джерелаChen, Chia-Hao, and 陳家豪. "K0 Consolidation Behavior of UnsaturatedLateritic Soil." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/t62qwm.
Повний текст джерела國立臺北科技大學
土木與防災研究所
97
Terzaghi’s one-dimensional consolidation theory that relates pore water pressure to settlement has been successfully applied to saturated soil. However, the use of this theory to unsaturated soil has rarely even been discussed. In this study, unsaturated K0 consolidation experiments that involved constant water content test, consolidation testand increase of matric suction test have been used to investigate the changes in water and soil volumes change of unsaturated lateritic soil. The experiments were conducted in an oedometer-type ring placed in an advanced triaxial apparatus for unsaturated soils. The one-dimensional consolidation theory was then used to compare and contrast the experimental resutl. Good agreement has been obtained between the two sets of result.
Fu, Chih-Ho, and 傅志和. "Research of Consolidation Behavior of Composite Soils." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/82085720797688611413.
Повний текст джерелаhan, Lin wei, and 林韋翰. "Students use credit card consolidation Behavior Model." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/17247007334029032789.
Повний текст джерела高苑科技大學
經營管理研究所
98
In this study, the above theory of planned behavior (Theory of Planned Behavior; abbreviated TPB) analysis, then a literature review and survey papers by searching out the students used a credit card that may affect the behavior intention of the main factors to construct a "credit card consolidation behavior of college students intention model "to verify the TPB theory using a credit card for college students the explanatory power of behavioral intention, to this study on the practical management help for credit card industry as a sales strategy to set the considerations. Statistics showed that university students "attitude", "subjective norm", "perceived behavioral control" and other beliefs, the use of credit cards will indeed have a significant impact behavioral intention, which "attitude" for the acts of faith intention of significantly higher ; followed by "perceived behavioral control", and "subjective norm" of the least significant; for the descriptive analysis showed that: 1. Attitude, Belief and analysis of more than 65% of college students are asked to keep a positive attitude items, only 10 % of students held a negative attitude. 2. Subjective normative beliefs of more than 67% of the students will listen to (friends, colleagues) the views of the more than 63% of the students held positive attitudes, which means that the surrounding environment or organizational groups affect college students use credit cards force. 3. The analysis of perceived behavioral control beliefs, more than 70% consider themselves to have sufficient financial capacity and self-control of external resources to engage in credit card behavior. 4. Behavioral intention of 62% of the students in the short term will have to use credit cards. The study results indicated that college students will be "attitude, subjective norm, perceived behavioral control" beliefs influence behavioral intention to use credit cards, it is suggested: 1. "Attitude" of the proposal - suggested that the domestic credit card industry, the design of the program should be continued the humane use of repayment, and gifts to enhance the quality, to increase the students will use credit cards. 2. "Subjective norm" of the proposal - the proposed credit card industry, in addition to maintaining brand reputation, product packaging and marketing of advertising as deeply moving as well as business people use the Internet and other marketing channels to get the credit card consumers. 3. "Perceived behavioral control" of the proposal - the proposed credit card industry can strengthen cooperation with the super-business alliance to provide students who facilitate the payment method, and strengthen sales and service.
Tan, Chih-Hao, and 譚志豪. "The Behavior of Compression and Consolidation for Clays." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/73403076750377805242.
Повний текст джерелаSilawat, Jeeravipoolvarn. "Geotechnical Behavior of In-Line Thickened Oil Sands Tailings." Phd thesis, 2010. http://hdl.handle.net/10048/1138.
Повний текст джерелаGeotechnical Engineering
Lin, You-Sheng, and 林友勝. "Dynamic Deformation Behavior of Saturated Compacted Soils Under Anisotropic Consolidation." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/x94xff.
Повний текст джерела國立中央大學
土木工程研究所
97
The cyclic strength of compacted soil is very different from ordinary sandy soil. In order to study the dynamic strength of compacted soil, this paper performed a series of dynamic triaxial tests on three kinds of compacted soils, SM, ML and CL for constructing an earth dam. This paper proposed a vacuum method for improving the saturation of compacted soils. Test results showed that both methods make the Skempton’s coefficient B of all specimens greater than 0.95. Compacted soils of the earth dam have different initial shear stress conditions which range from Kc=1.5 to Kc=2.0. Based on the test results, the higher initial shear stress ratio, the larger the dynamic strength and the less the pore water pressure. Dynamic strength of compacted soil is stronger than ordinary medium dense sand. Compacted soils have no liquefaction potential due to their shear dilation behavior and only sustain limited cyclic strain.
Tseng, Cheng-feng, and 曾正豐. "Dynamic deformation behavior of saturated sandy soils under anisotropic consolidation." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/30907481606066695419.
Повний текст джерела國立中央大學
土木工程研究所
99
The saturated soils beneath shallow foundation are in an anisotropic consolidation state before earthquake. Their dynamic behaviors are closely related to building settlement located in a liquefaction-susceptible ground. This study performed a series of cyclic triaxial tests on isotropically and anisotropically consolidated remolded quartz sands to deduce the residual deformation characteristics. The test conditions being varied include the relative density, the confining pressure, and the anisotropic consolidation ratio Kc. The test results show that the higher the relative density and the lower the confining pressure, the smaller the deformation deduced. The larger the Kc, the more the residual deformation and the less the cyclic component. It is also found the residual deformation of soil sample loaded first with compressive force is larger than that of soil sample loaded first with tensional force. The difference of the above two residual deformations can be used to assess the differential settlement of building located in a liquefiable ground.