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Dissertations / Theses on the topic 'Saturated conditions'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Petelka, Martin Frank. "Leaching of radioactive waste forms under saturated and unsaturated flow conditions." Diss., Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/18224.

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2

Zelasko, Amanda Jean. "Soil reduction rates under water saturated conditions in relation to soil properties." NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-07172007-154810/.

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The success of wetland restoration projects depends in part on the length of time that a soil is in a reduced redox state. The length of time that a soil is reduced depends on how quickly reduction occurs following saturation with water. The relationship between reduction rate and various soil chemical and mineralogical properties is poorly understood, but such properties might be manipulated to improve the success of wetland restoration projects. The goals of this research were to determine soil properties that predict the rate at which soils undergo reduction when saturated, and to determine

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3

Olsson, Nilla. "Experimental studies of ion transport in cementitious materials under partially saturated conditions." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1014/document.

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4

Gleisner, Magdalena. "Quantification of mineral weathering rates in sulfidic mine tailings under water-saturated conditions." Doctoral thesis, Stockholm University, Department of Geology and Geochemistry, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-349.

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<p>Tailings are a fine-grained waste product produced during the metal recovery process. Tailings consist mostly of different silicates but also sulfides (e.g. pyrite), since 100 % metal recovery is not possible. Freshly processed tailings are deposited in large impoundments. If the mine tailings in the impoundments are exposed to water and oxygen, the sulfides will oxidize and release acidity and metals such as Fe, Cu, Zn, and Pb. The sulfide mineral oxidation reactions are catalyzed by sulfur and iron oxidizing bacteria (principally <i>Acidithiobacillus ferrooxidans</i>) that oxidize ferrous

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5

Estrella, Sanchez Maria del Rocio 1962. "Biodegradation, sorption and transport of 2,4-D under saturated and unsaturated soil conditions." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278212.

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Researchers have traditionally viewed sorption, degradation and transport as separate processes and only recently have these processes viewed as coupled. 2,4-D was chosen as a model system to study the interaction between these processes. A series of laboratory batch and column experiments with a sandy loam soil were conducted to determine the relative contributions of sorption and degradation to transport of 2,4-D under both saturated and unsaturated conditions. The sorption contribution to 2,4-D transport was not significant under saturated (Kd = 0.249 mg/g) nor unsaturated conditions (Kd =

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6

Whang, Jooho. "Migration of radioactive wastes from shallow land burial site under saturated and unsaturated conditions." Diss., Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/16925.

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7

Abuhaikal, Muhannad (Muhannad A. R. ). "Expansion and shrinkage of early age cementitious materials under saturated conditions : the role of colloidal eigenstresses." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104186.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 273-289).<br>Mixing water with anhydrous cement powder and other additives results in a viscid cement slurry and triggers a set of complex exothermic reactions. As the cement slurry transitions from a suspension to a gel and ultimately to a stone-like porous solid, the material develops mechanical properties. This transition, however, is also accompanied by bulk volume changes, which -if restrained

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8

Valencia, Violeta. "Electrochemical Characterization Of Zinc-Rich Epoxy Primer-Cnt Nanocoating / Steel Interface In Co2 Saturated Under Different Flow Conditions." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1431108599.

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9

Gao, Qian-Feng. "Micro-macro approach of dilatancy phenomenon in remoulded clays - Study of the behaviour under saturated and unsaturated conditions." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0257/document.

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La nature complexe de l'argile a amené les chercheurs à s’intéresser à ses comportements mécaniques et microstructure. L'objectif de cette recherche est d'étudier l'influence des chemins de contrainte triaxiaux sur le comportement mécanique et sur les mécanismes qui se produisent au niveau microstructural. L’étude est réalisée en considérant à un niveau de contrainte donné, le phénomène de dilatance est approché suivant des chemins de contraintes différents. Dans un deuxième temps, l’étude se porte sur l’influence de la succion sur le comportement. Pour les argiles remaniées saturées, le compo

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10

Gao, Qian-Feng. "Micro-macro approach of dilatancy phenomenon in remoulded clays - Study of the behaviour under saturated and unsaturated conditions." Electronic Thesis or Diss., Université de Lorraine, 2018. http://www.theses.fr/2018LORR0257.

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La nature complexe de l'argile a amené les chercheurs à s’intéresser à ses comportements mécaniques et microstructure. L'objectif de cette recherche est d'étudier l'influence des chemins de contrainte triaxiaux sur le comportement mécanique et sur les mécanismes qui se produisent au niveau microstructural. L’étude est réalisée en considérant à un niveau de contrainte donné, le phénomène de dilatance est approché suivant des chemins de contraintes différents. Dans un deuxième temps, l’étude se porte sur l’influence de la succion sur le comportement. Pour les argiles remaniées saturées, le compo

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11

Neeway, James Joseph. "The alteration of the SON68 reference waste glass in silica saturated conditions and in the presence of water vapor." Nantes, 2011. http://www.theses.fr/2011NANT2006.

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La vitesse de dissolution à long terme du verre nucléaire et le mécanisme qui contrôle la dissolution sont très importants pour la modélisation du stockage des déchets nucléaires en profondeur. Ce travail présente des vitesses de dissolution du verre de référence SON68 dans des conditions dynamiques à 90°C et un pH de 8,0, 9,5, et 10,5 à des concentrations Si plus au moins élevée par rapport à la concentration de saturation de la silice. Les vitesses sont de l'ordre de 10-4 g / m² j après un an, mais elles ne sont toujours pas stables. Diffusion d'eau à travers la couche et une concentration s

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12

Gurupackiam, Saravanan. "Use of microscopic traffic simulation and field data to investigate saturated and free flow traffic conditions at arterial signals." Thesis, [Tuscaloosa, Ala. : University of Alabama Libraries], 2009. http://purl.lib.ua.edu/2164.

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13

Dohme, Frigga. "Reasons and conditions for the methane-suppressing effect of medium-chain saturated fatty acids as investigated with rumen simulation technique /." [S.l.] : [s.n.], 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13720.

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14

Zhang, Xiong. "Consolidation theories for saturated-unsaturated soils and numerical simulation of residential buildings on expansive soils." Texas A&M University, 2004. http://hdl.handle.net/1969.1/2747.

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The coupled and uncoupled consolidation theories for saturated-unsaturated soils have been discussed. A new method for constructing the constitutive surfaces for saturated-unsaturated soils has been proposed. The consolidation processes for saturated-unsaturated soils have been explained by thermodynamic analogue. One dimensional consolidation theory for saturated-unsaturated soils is presented and a new method is proposed to calculate the immediate settlement, total settlement and the time history of the consolidation settlement manually in the same way as what we have done for saturated soil

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15

Eriksson, Daniel. "Numerical models for degradation of concrete in hydraulic structures due to long-term contact with water." Licentiate thesis, KTH, Betongbyggnad, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-225125.

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The durability of concrete is of major concern in all types of concrete structures where the combined effect of exposure conditions and the type and quality of the concrete material usually determines the rate of degradation. Furthermore, there are synergy effects between different deterioration mechanisms, which means that the combined rate of degradation is higher than the sum of the individual rates of each mechanism. Therefore, to accurately predict the residual service life of existing structures or when designing new structures, it is essential to consider all these aspects. This means t

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16

Hannachi, Hassen. "Etudes cinetiques sous conditions atmospheriques simulees des reactions de composes carbonyles avec oh', o::(3), no'::(3) : consequences sur la chimie de basse troposphere." Paris 7, 1986. http://www.theses.fr/1986PA077213.

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17

Michel, Julien. "Transport d'hydrocarbures aromatiques polycycliques et de métaux dans les sols non saturés." Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL058N/document.

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Ce travail visait à évaluer le transport d’hydrocarbures aromatiques polycycliques (HAP) et de métaux dans des sols multi pollués, en s’intéressant plus particulièrement au couplage transport-réaction dans la zone non saturée du sol, selon deux axes de travail. En premier lieu, puisque de nombreux sites industriels sont multi pollués, nous avons choisi d’étudier l’influence des métaux sur la sorption des HAP et vice versa en système modèle. Nous avons montré que lors d’une pollution simultanée par du fluoranthène et du zinc, ce dernier est beaucoup moins retenu que lorsqu’il est présent seul e

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18

Gleisner, Magdalena. "Quantification of mineral weathering rates in sulfidic mine tailings under water-saturateds conditions /." Stockholm : Department of geology and geochemistry, Stockholm university, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-349.

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19

Harter, Thomas. "Unconditional and conditional simulation of flow and transport in heterogeneous, variably saturated porous media." Diss., The University of Arizona, 1994. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1994_36_sip1_w.pdf&type=application/pdf.

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20

Li, Bailing. "Unconditional and conditional analysis of flow and solute transport in variably saturated porous media." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282729.

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A numerical first order approach is proposed to conduct stochastic analyses of head and concentration under variably saturated conditions. The approach is based on a first-order Taylor series expansion and an adjoint state method. To implement the approach in different flow and transport regimes, numerical models are adopted to evaluate sensitivities of head and concentration with respect to hydrological parameters. This provides the possibility of conducting stochastic analyses of flow and transport problems with any kind of boundary and initial conditions. As a result, limitations of analyti

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21

Rozsypal, Christophe. "Etude expérimentale et modélisation, en fonction du pH et de la concentration en NaCl, du système ternaire U(VI)-NaCl-H2O à T = 155°C et pression de vapeur saturante." Thesis, Nancy 1, 2009. http://www.theses.fr/2009NAN10127/document.

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Etude expérimentale et modélisation, en fonction du pH et de la concentration en NaCl, du système ternaire U(VI)-NaCl-H2O à T = 155°C et pression de vapeur saturante. Une étude expérimentale sur la solubilité de l'U(VI) dans des saumures de NaCl (0.5 – 6 M) en fonction du pH (3-13) a été réalisée à T = 155°C et pression de vapeur saturante. Les résultats obtenus ont montré que la phase solide initiale UO3 se transforme en de multiples phases solides d'uranates de sodium de formule générale Na2xUyO(x+3y) hydratés dont le rapport molaire Na/U croit avec l'accroissement du pH et de la concentrati

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22

Kili, Koffi Ani. "Preparation, activation, et caracterisation des catalyseurs de metaux de transition associes aux terres rares." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13030.

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Etude de l'interaction entre les terres rares et les metaux de transition en jouant sur le mode d'impregnation, la nature des sels precurseurs des metaux de transition et des lanthanides et traitement thermique d'activation. Etude sur la dispersion et sur l'etat d'oxydation

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23

Riba, Colin. "Définitions par réécriture dans le lambda-calcul : confluence, réductibilité et typage." Thesis, Vandoeuvre-les-Nancy, INPL, 2007. http://www.theses.fr/2007INPL102N/document.

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Cette thèse concerne la combinaison du lambda-calcul et de la réécriture, dont nous étudions principalement deux propriétés : la confluence et la normalisation forte. Nous commençons par étudier sous quelles conditions la combinaison d'une relation de réécriture conditionnelle confluente au lambda-calcul donne une relation de réécriture confluente. Ensuite nous nous intéressons aux preuves de normalisation forte de lambda-calculs typés utilisant la technique de réductibilité. Notre contribution la plus importante est une comparaison de diverses variantes de cette technique, utilisant comme out

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24

Riba, Colin. "Définitions par réécriture dans le lambda-calcul : confluence, réductibilité et typage." Electronic Thesis or Diss., Vandoeuvre-les-Nancy, INPL, 2007. http://www.theses.fr/2007INPL102N.

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Cette thèse concerne la combinaison du lambda-calcul et de la réécriture, dont nous étudions principalement deux propriétés : la confluence et la normalisation forte. Nous commençons par étudier sous quelles conditions la combinaison d'une relation de réécriture conditionnelle confluente au lambda-calcul donne une relation de réécriture confluente. Ensuite nous nous intéressons aux preuves de normalisation forte de lambda-calculs typés utilisant la technique de réductibilité. Notre contribution la plus importante est une comparaison de diverses variantes de cette technique, utilisant comme out

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25

Essandoh, Helen M. K., Chedly Tizaoui, Mostafa H. A. Mohamed, G. Amy, and D. Brdjanovic. "Soil aquifer treatment of artificial wastewater under saturated conditions." 2011. http://hdl.handle.net/10454/5962.

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A 2000 mm long saturated laboratory soil column was used to simulate soil aquifer treatment under saturated conditions to assess the removal of chemical and biochemical oxygen demand (COD and BOD), dissolved organic carbon (DOC), nitrogen and phosphate, using high strength artificial wastewater. The removal rates were determined under a combination of constant hydraulic loading rates (HLR) and variable COD concentrations as well as variable HLR under a constant COD. Within the range of COD concentrations considered (42 mg L(-)(1)-135 mg L(-)(1)) it was found that at fixed hydraulic loading rat

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26

Smith, Heather Christine. "Time required for anaerobic conditions to develop in saturated soils." 2004. http://www.lib.ncsu.edu/theses/available/etd-12162004-073551/unrestricted/etd.pdf.

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27

Hen-RueiTsai and 蔡函叡. "Compression Behaviors of Saturated Granular Soils Subjected to Repeating Loads in Ko Conditions." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/20917090233855555939.

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碩士<br>國立成功大學<br>土木工程學系碩博士班<br>101<br>Hydrogeological surveys reveal that the soil stratum in Yunlin area are mainly consisted with sandy soils (sand and silty sand) within 100 m. Variations of ground water table could repeatedly change the effectives stress and cause ground subsidence. To evaluate the compressibility of granular soils subjected to repeating loads under Ko conditions, series of Ko triaxial compression tests were performed on Ottawa sand specimens. Two types of Ko triaxial compression test were conducted in this study. The first method is called vertical effective stress control

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28

HUANG, ZHEN-YING, and 黃振熒. "Study on the characterics of boundary conditions on the modeling of saturated porous media flow." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/26457024086158882343.

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29

"Pore Water Pressure Response of a Soil Subjected to Traffic Loading under Saturated and Unsaturated Conditions." Doctoral diss., 2011. http://hdl.handle.net/2286/R.I.14406.

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abstract: This study presents the results of one of the first attempts to characterize the pore water pressure response of soils subjected to traffic loading under saturated and unsaturated conditions. It is widely known that pore water pressure develops within the soil pores as a response to external stimulus. Also, it has been recognized that the development of pores water pressure contributes to the degradation of the resilient modulus of unbound materials. In the last decades several efforts have been directed to model the effect of air and water pore pressures upon resilient modulus. Howe

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30

Lin, Chun-Soon, and 林琮舜. "A study of Static and Dynamic Lateral Earth pressures at rest Conditions for the Saturated Sandy Gravel Stratum." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/22622999672532083728.

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碩士<br>逢甲大學<br>土木及水利工程所<br>92<br>The thrust of this thesis is to investigate the change of the lateral earth pressure acting on a rigid nonyield retaining wall with nearly saturated or dried gravelly sand served as backfill material under both static and dynamic loadings. Results from a series of tests show that (1) Lateral earth pressure acting on the wall increases with the increase in the number of repeated loading-unloading process; (2) As compared with the dry gravelly sand, the induced lateral earth pressure acting on the wall is greater for the case with nearly saturated gravelly sand s

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31

Huang, Mei-Chuan, and 黃美娟. "The Study of Air Flow in Saturated Porous Media under Air Sparging Condition." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/55758657966313259527.

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碩士<br>中國醫藥學院<br>環境醫學研究所<br>88<br>Accident releases of volatile organic compounds (VOCs) from petroleum products and solvents have resulted in gross contamination of soils and groundwater. VOCs are found to be non-aqueous phase liquids (NAPLs) at many contaminated sites. Air sparging, also called “in situ air stripping”, is a remedial technology whereby contaminant-free air is induced into a contaminated aquifer to volatilize VOCs from the groundwater into the air phase. Several field-scale applications of the air sparging system have indicated that air sparging may be effective in remediating

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32

Lin, Wei-Ting, and 林威廷. "The development of pressure vessel for gouges deformed at seismic rates under water-saturated condition." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/92sn7p.

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碩士<br>國立中央大學<br>地球科學學系<br>107<br>Rock deformation experiments are utilized to investigate the frictional behaviors and the associated mechanism of a fault during earthquake nucleation and ruptures. In particular, rotary shear apparatuses, characterizing with the deformation of large displacement and high velocities, are allowed to determine the fault behavior and its mechanism operated during earthquake propagation. In general, incohesive materials (fault gouges) are the dominant component within a fault core. Therefore, the studying materials, including both natural and synthetic gouges, are

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33

Topp, Holger [Verfasser]. "On the interaction of chemically conditioned water with steel heating surfaces during saturated pool boiling : an experimental thermotechnical approach / von Holger Topp." 2010. http://d-nb.info/1014131480/34.

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