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Dissertations / Theses on the topic 'Plasticity index'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Gavassa, Becerra Sat. "Social and Environmental Regulation of Signal Plasticity and Signal Reliability in the Electric Fish Brachyhypopomus gauderio." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/687.

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The balance between the costs and benefits of conspicuous signals ensures that the expression of those signals is related to the quality of the bearer. Plastic signals could enable males to maximize conspicuous traits to impress mates and competitors, but reduce the expression of those traits to minimize signaling costs, potentially compromising the information conveyed by the signals. I investigated the effect of signal enhancement on the information coded by the biphasic electric signal pulse of the gymnotiform fish Brachyhypopomus gauderio. Increases in population density drive males to enh

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2

Allen, Whitney M. "The relationship between plasticity ratio and hydraulic conductivity for bentonite clay during exposure to synthetic landfill leachate." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001393.

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3

El-Hajji, Darwish. "Evaluation of the long term effect of inorganic leachate on geosynthetic clay liners." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001718.

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4

Mašek, Jakub. "Namrzavost zemin a materiálů v podloží vozovek." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226039.

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This diploma thesis deals with the issue of the determination of the frost susceptibility of soils in the subgrades of road structures. The theoretical part compares the ways of testing the frost susceptibility in the Czech Republic and other selected countries of the European Union. Furthermore, it also deals with the development of the frost susceptibility index in the Czech Republic. The empirical part focuses on the laboratory testing of the frost susceptibility of the given sample of soil by the direct frost heave method. Moreover, it also deals with the simulation of penetration of frost

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5

Fialho, Cleunice Auxiliadora. "Características morfogênicas e estruturais de amendoim forrageiro (Arachis pintoi krapovickas & Gregory cv. Belmonte) submetido a intensidades de pastejo sob lotação contínua." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-04052015-110506/.

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A natureza e a magnitude das respostas morfogênicas em plantas forrageiras variam com a disponibilidade de fatores climáticos de crescimento e com as metas de manejo utilizadas, modificando as características estruturais do dossel forrageiro. Nesse cenário, intensidades de desfolhação determinam alterações de forma e função nas plantas forrageiras que, por sua vez, definem e caracterizam estratégias de crescimento e perenização e a resistência das plantas ao pastejo. O objetivo deste estudo foi descrever e caracterizar as respostas morfogênicas e as características morfológicas do amendoim for

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6

Ribeiro, Ana Karenina Fernandes de Sousa. "Atributos de solos sob sistemas de uso agropecuários na mesorregião do Oeste Potiguar - RN." Universidade Federal Rural do Semi-Árido, 2016. http://bdtd.ufersa.edu.br:80/tede/handle/tede/593.

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Submitted by Lara Oliveira (lara@ufersa.edu.br) on 2017-01-31T20:09:26Z No. of bitstreams: 1 AnaKFSR_DISSERT.pdf: 1693292 bytes, checksum: 36d338aa920da9d3f5c142d94ecbf871 (MD5)<br>Approved for entry into archive by Vanessa Christiane (referencia@ufersa.edu.br) on 2017-03-21T14:51:55Z (GMT) No. of bitstreams: 1 AnaKFSR_DISSERT.pdf: 1693292 bytes, checksum: 36d338aa920da9d3f5c142d94ecbf871 (MD5)<br>Approved for entry into archive by Vanessa Christiane (referencia@ufersa.edu.br) on 2017-03-21T14:52:02Z (GMT) No. of bitstreams: 1 AnaKFSR_DISSERT.pdf: 1693292 bytes, checksum: 36d338aa920da9d3f5c14

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7

Barnes, Graham Edward. "The plastic limit and workability of soils." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/the-plastic-limit-and-workability-of-soils(28a2491e-6178-4993-aa10-4b68cf892570).html.

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Previous thread rolling methods for the plastic limit are shown to be inadequate and inaccurate. Alternative methods for the plastic limit are shown to be imprecise and unreliable. The strength-based concept and use of the fall-cone test to determine the plastic limit are shown to be flawed. An apparatus that replicates Atterberg’s rolling technique, devised and developed by the author, is described, referred to as the Barnes Apparatus. A thread of soil is rolled between two plates configured to permit extrusion and reduction of diameter with much less operator interference than with the stand

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8

Garay, Soto María Del Pilar, and Garay José Antonio Ríos. "Estudio comparativo de las granulometrías por sedimentación, para determinar los porcentajes de arcillas en los suelos finos de la región San Martín." Bachelor's thesis, Universidad Ricardo Palma, 2015. http://cybertesis.urp.edu.pe/handle/urp/1257.

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La Región San Martín cuenta, en su mayoría, con suelos correspondientes a la fracción fina. Es decir que están compuestos principalmente de arcillas. Para ello, se analizó muestras de las localidades de Saposoa, Moyobamba y Tarapoto. Razón por la cual, el objetivo de la presente tesis es determinar los porcentajes de arcillas en los distintos suelos finos de esta Región, mediante el método de análisis granulométrico por sedimentación. Generalmente en los ensayos de granulometría, se analizan las muestras de los suelos hasta la malla N°200. Para determinar las características de estos suelos

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9

Ormeño, Moquillaza Eduardo André, and Vicente Neptalí Eduardo Rivas. "Estudio experimental para determinar la influencia de la aplicación de Cenizas de Cáscara de Arroz (RHA) en la estabilización de una subrasante de suelo arcilloso de baja plasticidad en Chota- Cajamarca." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/653974.

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La construcción de las obras viales han sido siempre un reto para la ingeniería, más aún en zonas donde las condiciones demográficas y el tipo de suelo no son los más convenientes para la ejecución de este tipo de proyectos. El presente estudio tiene como objetivo primordial establecer la influencia que tiene la adición de ceniza de cáscara de arroz, como estabilizante, en la sub rasante de una carretera no pavimentada conformada por un suelo arcilloso, de baja resistencia, ubicado en el caserío de Callampampa, en Chota - Cajamarca. Durante las pruebas iniciales, se determinó que la arcilla es

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10

Jiménez, Ramirez Belén. "Seismic vulnerability assessment of traditional timber frame and masonry wall buildings : aplication to the historical centre of Valparaíso, Chile." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/671491.

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The seismic vulnerability of urban assets exposed to earthquake hazard represents a growing concern in the engineering field due to the potential risk of collapse for the buildings, and the associated devastating consequences for the inhabitants. This concern has led to the development of novel strategies for the assessment of the seismic vulnerability of the existing buildings. An accurate evaluation of the seismic vulnerability constitutes the point of departure for the implementation of the necessary mitigation strategies aimed at increasing the seismic resilience of the cities. Seismic v

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11

Wahalathantri, Buddhi Lankananda. "Damage assessment in reinforced concrete flexural members using modal strain energy based method." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/59509/1/Buddhi_Wahalathantri_Thesis.pdf.

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Damage assessment (damage detection, localization and quantification) in structures and appropriate retrofitting will enable the safe and efficient function of the structures. In this context, many Vibration Based Damage Identification Techniques (VBDIT) have emerged with potential for accurate damage assessment. VBDITs have achieved significant research interest in recent years, mainly due to their non-destructive nature and ability to assess inaccessible and invisible damage locations. Damage Index (DI) methods are also vibration based, but they are not based on the structural model. DI meth

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12

Marqueste, Tanguy. "Plasticité fonctionnelle et post-traumatique du système neuromusculaire chez l'Homme et l'animal : effets de l'électromyostimulation et de l'exercice physique." Aix-Marseille 2, 2003. http://www.theses.fr/2003AIX22028.

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Les conséquences du maintien en activité du muscle par des stimulations électriques chroniques (en comparant deux types de courant) ou lors de rééducation motrice sur tapis roulant, sont étudiées en vue d’une récupération fonctionnelle neuromusculaire succédant à une section-suture d’un nerf mixte périphérique. Cette plasticité post-traumatique est évaluée chez le rat au travers de données musculaires contractiles, neurophysiologiques, histochimiques et biochimiques. Nous avons également étudié la réafférentation mécano- et métabosensible. Afin d’évaluer l’importance de cette activité métabose

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13

"Estimating the Soil-Water Characteristic Curve Using Grain Size Analysis and Plasticity Index." Master's thesis, 2011. http://hdl.handle.net/2286/R.I.9215.

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abstract: The infrastructure is built in Unsaturated Soils. However, the geotechnical practitioners insist in designing the structures based on Saturated Soil Mechanics. The design of structures based on unsaturated soil mechanics is desirable because it reduces cost and it is by far a more sustainable approach. The research community has identified the Soil-Water Characteristic Curve as the most important soil property when dealing with unsaturated conditions. This soil property is unpopular among practitioners because the laboratory testing takes an appreciable amount of time. Several author

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14

Shin, James. "The effects of ethanol on bidirectional synaptic plasticity in the hippocampus." Thesis, 2009. http://hdl.handle.net/1828/3117.

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The effects of ethanol on the brain are far reaching. However, the effect of ethanol on synaptic plasticity has not yet been fully explored. Although it has been established that ethanol inhibits long-term potentiation (LTP) in the CA1 of the hippocampus, before our study, it was unclear whether long-term depression (LTD) was attenuated or enhanced by ethanol. We found that different concentrations of ethanol attenuated LTD in the CA1 (CA1-LTD) at younger ages. At more mature ages, CA1-LTD was completely blocked by ethanol. In contrast to this, LTD in the dentate gyrus (DG-LTD) was not sig

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15

Javanrohbakhsh, Fatemeh Bahar. "Rhythmic arm cycling induces short-term plasticity of the soleus H-reflex amplitude." Thesis, 2007. http://hdl.handle.net/1828/258.

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Plasticity in spinal networks has been proposed as a means to permit motor skill learning and recovery after central nervous system disorders. This plasticity is significantly driven by input from the periphery (Wolpaw & Carp, 2006). For instance, attenuation of soleus Hoffmann (H) reflex can last beyond the period of different types of conditioning via putative presynaptic inhibition (Brooke et al., 1997). Interestingly, rhythmic arm cycling can also attenuate soleus H-reflex via interlimb connections and presynaptic pathways (Frigon, Collins, & Zehr, 2004). However, it remains to be st

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