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1

Zuniga, Cynthia R. "Estimating variation in stiffness and volume change of clays from geochemical and index properties". To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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Bunker, Daniel Thomas. "The Influence of drying rate on the pore volume distribution of clay coatings". Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/5783.

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3

Wayllace, Alexandra Likos William J. "Volume change and swelling pressure of expansive clay in the crystalline swelling regime". Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/7110.

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Title from PDF of title page (University of Missouri--Columbia, viewed on March 2, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dr. William Likos, Thesis Supervisor. Vita. Includes bibliographical references.
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4

Pearce, Caroline Louise. "The influence of physico-chemical stresses on sorption and volume change behaviours of bentonite". Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340138.

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5

Wanyan, Yaqi. "Expert system design guide for lower classification roads over high PI clays". To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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6

Spencer, John M. "Comparing a low-volume piezometer to traditional wells in evaluating hydraulic lag caused by low-permeability sediments". [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002435.

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7

Castillo, Gonzales Mayela Danixa, i Muñaqui Kevin Aldo Hernández. "Propuesta de concreto de baja permeabilidad con adición de polvo de ladrillo de arcilla para la construcción de viviendas en ambientes marinos, Cerro Azul Cañete". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/654635.

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El deterioro de las estructuras de concreto debido al ataque de agentes externos, es una de las problemáticas con más énfasis en el rubro de la construcción, ya que afecta directamente las propiedades de la infraestructura, dando como resultado la reducción de vida útil. Por otro lado, tenemos el incremento de construcciones cerca al litoral marítimo, sin embargo, surge la problemática de presencia de eflorescencia, desprendimiento, corrosión o manchas en el concreto, por el ataque de sulfatos presente en el agua de mar, en el suelo, y en la humedad. A lo largo de los años se ha propuestos productos como adiciones en la composición del cemento o productos no permeables para aplicar al concreto, con el fin de minimizar el impacto. Para la presente investigación se estudia la efectividad del polvo de ladrillo, como reemplazo parcial del cemento, mediante los ensayos de resistencia a la compresión, trabajabilidad en estado fresco, volumen de contenido de vacíos y permeabilidad. Se realizó pruebas con cuatro diferentes proporciones de reemplazo como es 5%, 15%, 25% y 30%, para una resistencia de f´c 300 kg/cm2. De acuerdo a los resultados, se concluyó que la muestra con reemplazo parcial de polvo de ladrillo de arcilla en 25%, demuestran resultados óptimos como mayor resistencia, además de un bajo volumen de contenido de vacíos y una permeabilidad baja. Asimismo, muestra una reducción económica de fabricación por m3 de 8.72%, en comparación a la muestra convencional.
The deterioration of concrete structures due to the attack of external agents, is one of the problems with more emphasis in the construction sector, since it directly affects the properties of the infrastructure, resulting in a reduction in useful life. On the other hand, we have the increase in constructions close to the sea coast, however, the problem of efflorescence, detachment, corrosion or stains on the concrete arises, due to the attack of sulphates present in seawater, in the soil, and in the humidity. Over the years, products such as additions in the cement composition or non-permeable products have been proposed to apply to concrete, in order to minimize the impact. For the present investigation, the effectiveness of brick dust is studied as a partial replacement for cement, through tests of compressive strength, workability in a fresh state, void content volume and permeability. Tests were carried out with four different replacement proportions such as 5%, 15%, 25% and 30%, for a resistance of f'c 300 kg / cm2. According to the results, it was concluded that the samples with partial replacement of clay brick dust in 25% demonstrate optimal results such as greater resistance, in addition to a low volume of voids content and a low permeability. Likewise, it shows an economic reduction in manufacturing of m3 of 8.72%, compared to the conventional sample.
Tesis
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8

Schreiner, Hilson Deneys. "Volume change of compacted highly plastic African clays". Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47643.

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9

Panontin, Flavia. "Determinação de volume de poro de silicas para CLAE utilizando espectroscopia no infravermelho proximo". [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250552.

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Orientador: Ivo Milton Raimundo Junior
Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica
Made available in DSpace on 2018-08-09T15:37:40Z (GMT). No. of bitstreams: 1 Panontin_Flavia_M.pdf: 2358588 bytes, checksum: 5556de1b55db28438143379cca4b4281 (MD5) Previous issue date: 2007
Resumo: Um método para a determinação do volume de poros de sílicas, utilizadas como suportes de fases estacionárias para CLAE (Cromatografia Líquida de Alta Eficiência), foi desenvolvido utilizando a espectroscopia na região do infravermelho próximo (NIR). Foram preparadas amostras pela adição de sílica em soluções de diferentes concentrações de compostos de recobrimento, como polímeros, hidrocarbonetos lineares e ramificados, nujol, glicerol, entre outros, em meio de diclorometano ou metanol. Foram registrados espectros de reflectância difusa na região de 1100 a 2300 nm. Os espectros obtidos foram submetidos à primeira derivada e as intensidades em 1688 nm (primeiro sobretom de ligações C-H) foram empregadas para a construção de uma curva em função da carga inicial (massa recobrimento/massa total) da amostra. Foram obtidos dois ramos lineares, o primeiro (praticamente paralelo à abscissa) indica que a imobilização do reagente no interior dos poros da sílica, e o segundo mostra um aumento crescente dos valores de primeira derivada, indicando o recobrimento de sua superfície externa. A intersecção destas duas retas fornece o valor de carga equivalente ao total preenchimento dos poros. Os resultados obtidos de volume de poro são concordantes com os valores fornecidos pelo método padrão (BJH), apresentando desvios padrão menores que 10%. O método proposto apresenta boa reprodutibilidade, com desvios menores que 1,0%, sendo rápido, simples e não destrutivo o que mostra uma grande vantagem frente ao método BJH, que faz uso de equipamentos caros e procedimentos lentos
Abstract: A method for the determination of pore volume of silicas, used as stationary phases for HPLC (High Performance Liquid Chromatography) was developed using near infrared spectroscopy (NIR). Samples were prepared by the addition of silica in covering compounds solutions of different concentrations, as linear and ramified polymers, hydrocarbons, nujol, glycerol, and among others, using dichloromethane or methanol as solvents. Diffuse reflectance spectra were registered in the 1100 to 2300 nm region. Spectra were submitted to a first derivative pre-treatment and the intensities at 1688 nm (first overtone of C-H bonds) were used for the construction of a curve as a function of the initial load (covering/total mass) of the sample. Two linear branches were obtained; the first one (practically parallel to the abscissa) indicates the immobilization of the reagent in the interior silica pores, and the second one shows increasing values of first derivative, indicating the covering of its external surface. The intersession of these two straight lines supplies the load value that is equivalent to the total fulfilling of the pores. The results obtained for of pore volume are in agreement with those supplied by the standard method (BJH), presenting deviation lower than 10 %. The proposed method presents good reproducibility with standard deviation lower than 1.0 %, being fast, simple and no destructive technique, that is a great advantage over the BJH method, which uses expensive equipment and slow procedures
Mestrado
Quimica Analitica
Mestre em Química
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10

Powell, Katherine M. "Templated synthesis of tailored clays to yield increased pore volumes for sorption and exchange". Thesis, University of Surrey, 2005. http://epubs.surrey.ac.uk/843226/.

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The study aimed to enhance the textural properties of the synthetic hectorite clay Laponite RD. In the early 1990s Mobil Research and Development Corporation produced the first ordered mesoporous molecular sieves. This family of materials, M41S, were fabricated via liquid crystal templating (LCT), a technique involving the condensation and hydrolysis of a silica source around an organic template. As clays are primarily silicates, the question arises "Why not apply the same principles to enhance porosity characteristics of other silicates such as clays?" Optimization of reagent concentrations, template choice, synthesis protocol and template removal strategy led to a maximum total pore volume of 0.95 cm3 g-1. This was achieved through templating Laponite RD with the neutral surfactant polyoxyethylene (20) sorbitan trioleate (Tween 85). This more than trebled the original total pore volume of Laponite RD, 0.27 cm3 g-1. An increase in modal pore diameter was also observed after use of this template; from 36.6 A to 52.3 A. Synthesis of Laponite-like compounds within the laboratory led to enhancement of porosity characteristics without templating; a total pore volume of 0.44 cm3 g-1 was observed for this synthetic hectorite (KP). Use of a template further enhanced the porosity characteristics of these samples. The cationic surfactant CTMA+ (used in the original Mobil synthesis) led to a total pore volume of 0.60 cm3 g-1 for modified hectorite KP. A similar result, 0.65 cm3 g-1, was achieved through templating Laponite RD with this same surfactant. Sorption and exchange properties of the newly modified hectorites were assessed by simple equilibrium batch testing methods using both single metal and multi-metal solutions. Hectorite KP samples removed a greater percentage of metal ions from aqueous solution than its Laponite RD analogues. For 5 mg dm-3 single element solutions CTMA+ modified hectorite removed > 95% of all eight metals tested. For solutions containing higher concentrations of ions the removal efficiency of all tested clays were reduced due to greater competition between ions. Partial interlayer collapse was observed during powder XRD studies, due to the acidic nature of the metal ion solutions.
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11

Leo, de Belmont Laura Ana. "Seminole kinship system and clan interaction". Mendoza, República Argentina : Facultad de Filosofía y Letras, Universidad Nacional de Cuyo, 1985. http://catalog.hathitrust.org/api/volumes/oclc/16078022.html.

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12

Garay, Soto María Del Pilar, i 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 finos, se debe conocer cuánto de este porcentaje corresponde a las arcillas. La relación entre el Índice de Plasticidad y el porcentaje de finos genera la actividad de la arcilla analizada. Asimismo, en el presente estudio: se analizó el contenido de la humedad de la muestra; luego, se halló los índices de plasticidad y se examinó por medio de la granulometría de sedimentación; para dar como resultado, su clasificación de suelos mediante los métodos SUCS y AASTHO. El proyecto estuvo enmarcado en el Diseño de Investigación Cuantitativa, siendo del tipo de Diseño No Experimental Transversal. Fue aplicado a las muestras de Saposoa, Moyobamba y Tarapoto. Mediante una serie de técnicas e instrumentos, se realizaron ensayos de laboratorios para obtener el porcentaje de arcilla de los suelos finos de esas localidades y, de esa forma, conocer su respectivo tipo. Finalmente, los resultados revelan que los porcentajes de arcillas de cada una de las muestras son: Saposoa 60%, Moyobamba 58% y Tarapoto 14%. Del mismo modo, se halla la Actividad de las Arcillas: Saposoa 0.56, Moyobamba 0.58 y Tarapoto 0.35.Se concluye que las muestras contienen arcilla del tipo caolinitas. Estas generan un bajo nivel de potencial de cambio de volumen las cuales no afectan de manera considerable al diseño. San Martin Region account, mostly, tiled corresponding to the fine fraction. It is said to consist mainly of clay. To do this, samples of the towns of Saposoa, Moyobamba and Tarapoto were analyzed. Because of that, the aim of this thesis is to determine the percentage of clay in different fine soils of this region, by the method of particle size analysis by sedimentation. Generally, in assays of granulometry, soil samples to the mesh No. 200 are analyzed. To determine the characteristics of these thin soils, one must know how much of this percentage corresponds to clays. The relationship between the plasticity index and the percentage of fines generated clay activity are Banalyzed. Also in this study: the moisture content of the sample was analyzed; then plasticity indices was found and examined by sedimentation particle size; to result, classification of soils by the USCS and AASHTO methods. The project was framed in the Design of Quantitative Research, being the type of Cross No Experimental Design. It was applied to samples of Saposoa, Moyobamba and Tarapoto. Through series of techniques and instruments, laboratory tests were conducted to obtain the percentage of fine clay soils of these locations and, thus, meet their respective type. Finally, the results show that the percentages of clays of each of the samples are: 60 % Saposoa, Moyobamba, Tarapoto 58 % and 14 %. Similarly, the activity of the clays is: Saposoa 0.56, Moyobamba 0.58 and Tarapoto 0.35.Se concluded that the samples containing kaolinite clay type. These produce a low level of volume change potential which do not affect significantly the design way.
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13

"Osmotic Flow and Volume Change in Clay Soils". Diss., 1986. http://hdl.handle.net/10388/5729.

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The engineering profession has been called upon by the public in recent years to provide ever increasing degrees of containment for low level waste contained in shallow subsurface waste containment facilities. To provide this protection, the use of engineered liners or barriers has become a common design feature. In many cases, these barriers are constructed out of natural clays or artificial mixtures of clay minerals. The use of soil barriers to contain waste products consisting of strong electrolyte solutions, has met with mixed success. Clays of lowest permeability are also those whose behavior is the most influenced by the presence of salt solutions. Failures of clay liners exposed to electrolyte solutions have not been well documented. The mechanism for failure seems to be the result of shrinkage of the clay, which then leads to the development of a secondary structure of cracks and fissures. Field cases of liner failure have often been described as occurring as a result of "osmotic desiccation". The general objective of this study was to define, and quantify, the mechanisms controlling the rate and magnitude of volume change in clay soils exposed to strong electrolyte solutions. A review of the literature presented two possible mechanisms termed osmotically consolidation. Osmotically induced consolidation occurs as a result of for osmotic volume change. induced consolidation and These were osmotic rapid flow of water out of the sample in response to osmotic gradients. Osmotic consolidation occurs as as result of a reduction in the net electrostatic repulsive stresses between clay particles. A general theoretical description of osmotically induced consolidation and osmotic consolidation was developed. A phenomenological approach was adopted to describe fluid flow in response to osmotic gradients. A Darcy type flow law was used to related osmotic flows to osmotic gradients through a conductivity term called the osmotic permeability. To describe osmotic consolidation, the osmotic pressure of the pore fluid was selected as a stress state variable. Volume changes were linked to the osmotic pressure of the pore fluid through a constitutive relationship. The soil property used to define changes in soil volume due to osmotic pressure changes was called the osmotic compressibility. A numerical solution to the theoretical description of osmotic flow and volume change was developed using finite element techniques. This model was used to characterize the processes of osmotic and osmotically induced consolidation. A laboratory program was undertaken to monitor the osmotic flow and volume change in two clays; Regina Clay and an Ottawa SandI Na montmorillonite mixture. From the results of these tests the dominant mechanism of volume change for these clays was found to be osmotic consolldatipn. The test procedures developed allowed the soil properties describing osmotic flow and volume change to be evaluated. A technique was developed by which the electrostatic repulsive stresses within a clay could be measured indirectly through laboratory testing. The results indicated that the onset of fracturing may be predicted by comparing the change in the net repulsive stress that occurs as result of changing pore fluid concentrations, to the confining stress within the soil.
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14

Hall, Heather Ann. "Volume change behavior of clay soils and the effect on discrete fractures". Thesis, 2001. http://library1.njit.edu/etd/fromwebvoyage.cfm?id=njit-etd2001-072.

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Thesis (Ph.D) -- New Jersey Institute of Technology, Dept. of Chemical Engineering, Chemistry and Environmental Science, 2001.
Includes bibliographical references. Also available via the World Wide Web.
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15

"Evaluation of Testing Methods for Suction-Volume Change of Natural Clay Soils". Master's thesis, 2017. http://hdl.handle.net/2286/R.I.46336.

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abstract: Design and mitigation of infrastructure on expansive soils requires an understanding of unsaturated soil mechanics and consideration of two stress variables (net normal stress and matric suction). Although numerous breakthroughs have allowed geotechnical engineers to study expansive soil response to varying suction-based stress scenarios (i.e. partial wetting), such studies are not practical on typical projects due to the difficulties and duration needed for equilibration associated with the necessary laboratory testing. The current practice encompasses saturated “conventional” soil mechanics testing, with the implementation of numerous empirical correlations and approximations to obtain an estimate of true field response. However, it has been observed that full wetting rarely occurs in the field, leading to an over-conservatism within a given design when partial wetting conditions are ignored. Many researchers have sought to improve ways of estimation of soil heave/shrinkage through intense studies of the suction-based response of reconstituted clay soils. However, the natural behavior of an undisturbed clay soil sample tends to differ significantly from a remolded sample of the same material. In this study, laboratory techniques for the determination of soil suction were evaluated, a methodology for determination of the in-situ matric suction of a soil specimen was explored, and the mechanical response to changes in matric suction of natural clay specimens were measured. Suction-controlled laboratory oedometer devices were used to impose partial wetting conditions, similar to those experienced in a natural setting. The undisturbed natural soils tested in the study were obtained from Denver, CO and San Antonio, TX. Key differences between the soil water characteristic curves of the undisturbed specimen test compared to the conventional reconstituted specimen test are highlighted. The Perko et al. (2000) and the PTI (2008) methods for estimating the relationship between volume and changes in matric suction (i.e. suction compression index) were evaluated by comparison to the directly measured values. Lastly, the directly measured partial wetting swell strain was compared to the fully saturated, one-dimensional, oedometer test (ASTM D4546) and the Surrogate Path Method (Singhal, 2010) to evaluate the estimation of partial wetting heave.
Dissertation/Thesis
Masters Thesis Engineering 2017
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16

"Volume Change Behavior of Expansive Clay Stabilized with Bio-based Silica Gel". Master's thesis, 2020. http://hdl.handle.net/2286/R.I.63071.

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abstract: This document presents the assessment of the swelling behavior of expansive clay stabilized with bio-based silica gel and subjected to wetting and drying cycles. The expansive clay used in this research was obtained from Anthem, Arizona. Rice husk is a rich silica by-product of rice production with commercial uses and applications in the industry. Rice husk ash from two different sources -California (named ASU) and India- were subjected to chemical characterization. Fourier Transform Infra-red Spectroscopy was used to verify the functional groups of the gel formed. Results showed differences between the ashes from different sources and confirmed the presence of silica structure bonds. X-Ray Diffraction (XRF) results showed that the ASU ash contained more amorphous silica than the Indian ash.One dimensional swell and consolidation tests were performed to investigate the volume change behavior of the untreated and silica gel treated remoulded samples. The free swell of the clay decreased from 12.3% (untreated sample) to 7.2% (ASU sample) and 11.4% (Indian sample). The effect of the wet and dry cycles on the swelling and consolidation characteristics of the untreated clay demonstrated that the treatment is irreversible after three cycles. Swelling of clay treated with ASU ash was reduced after the first cycle, while that of the clay treated with Indian ash was reduced after three cycles. This was due to the gelation time difference between treatments. Scanning Electron Microscopy images showed that the structure of the untreated clay was discontinuous, flaky and without aggregations whereas particles in the treated samples were aggregated and new bonds were created, decreasing the surface area. The X-Ray Diffraction (XRF) results showed that the main mineral responsible for expansive behavior of the clay studied was illite. The d-spacing of the illite decreased from 4.47Å for the untreated clay to 3.33Å for the treated clay. This study demonstrates a promising technique for clay swelling reduction and a more sustainable solution than that available to current practicing engineering.
Dissertation/Thesis
Masters Thesis Built Environment 2020
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Tassia, Yuliana, i 許麗琪. "Effects of silane-grafted silica nanoparticles and montmorillonite clay on the volume shrinkage, internal pigmentability, mechanical properties and cured sample morphology for unsaturated polyester, vinyl ester, and epoxy resins". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/75680818314138415635.

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碩士
國立臺灣科技大學
化學工程系
101
The synthesis of silane-grafted silica nanoparticles with different size (d = 15 and 30 nm) and montmorillonite clay (MMT) with the subsequent characterization of the grafting efficiency, grafting density, as well as the surface silanol groups conversion have been carried out. The silane coupling agents used for the treatment are γ-methacryloxy propyl trimethoxy silane (MPS) and γ-glycidyloxy propyl trimethoxy silane (GPS). The effects of those silane-modified silica nanoparticles and MMT on the volume shrinkage characteristics, internal pigmentability, mechanical properties, and cured sample morphology for styrene (St)/unsaturated polyester (or vinyl ester)/additive ternary systems have been carried out. The number of silane coupling agents grafted on the MMT or silica surface and their silanol groups conversion were characterized by Fourier Transform Infrared Spectroscopy (FTIR). The cured sample morphology was observed by Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM). The volume shrinkage of the cured sample was measured by density method. Mechanical properties of the St/VER(n=2)/MPS-grafted silica (d = 30 nm) was investigated by using the universal testing machine and impact tester. The addition of silane-grafted MMT or silica nanoparticles reveals different results in the reduction of volume shrinkage for different UP or VER, each with different molecular weight, which is due to the incompatibility of the ternary system. Higher viscosity of the resin matrix, the characteristics of the silane-grafted MMT or silica nanoparticles, and the interfacial adhesion determine the sufficient incompatibility between the additive and the resin matrices. Therefore, an acceptable volume shrinkage and even a volume expansion could be achieved.
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Murray, Doug, Tetsuya Fujii i Scott R. Dallimore. "DEVELOPMENTS IN GEOPHYSICAL WELL LOG ACQUISITION AND INTERPRETATION IN GAS HYDRATE SATURATED RESERVOIRS". 2008. http://hdl.handle.net/2429/1424.

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There has been a dramatic increase in both the amount and type of geophysical well log data acquired in gas hydrate saturated rocks. Data has been acquired in both offshore and Arctic environments; its availability has shed light on the applicability of current tools and the potential usefulness of recently developed and developing technologies. Some of the more interesting areas of interest are related to the usefulness of nuclear elemental spectroscopy data and the comparison of thermal and epithermal neutron porosity measurements, the measurement of in-situ permeability, the interpretation of electrical borehole image and borehole sonic data. A key parameter for reservoir characterization and simulation is formation permeability. A reasonable understanding of this property is key to the development of future gas hydrate production. Typical applications of borehole image data are an appreciation of a reservoir’s geological environment. In hydrate saturated reservoirs, borehole images can also be used to assist in the understanding of the gas migratory path to the hydrate bearing formation. This paper presents a review of some of the current state of the art geophysical log measurements and their application in hydrate saturated reservoirs..
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HSU, HSUN-MIN, i 許勛閔. "Effects of nano-scale and submicron-scale core-shell rubber additives and montmorillonite clay on the volume shrinkage , pigmentability and cured sample morphology for styrene/unsaturated polyester/additive ternary systems". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/3jjw67.

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碩士
國立臺灣科技大學
化學工程系
95
The effects of two additives, including (1) nano- scale and submicron-scale core-shell rubber additive, and (2) montmorillonite clay, on the cured sample morphology, volume shrinkage characteristics and internal pigmentability for the styrene(St)/ unsaturated polyester(UP) /additive ternary systems after the cure were investigated. The experimental results have been explained by integrated measurements combining phase characteristic of the St/UP/additive ternary system before the cure, XRD analysis , cured sample morphology, final cure conversion, and volume fraction of microvoid generated during the cure by using DSC , SAXS , WAXS , SEM , TEM , OM and image analysis. (keywords: core-shell rubber(CSR); montmorillonite (MMT); volume shrinkage;internal pigmentability;unsaturated polyester(UP); curing)
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Guo, Ting-jhen, i 郭庭蓁. "Effects of reactive microgel-based low-profile additives, nano-scale core-shell rubber tougheners, and montmorillonite clay on the morphology, volume shrinkage characteristics and internal pigmentability for styrene/unsaturated polyester/additive ternary". Thesis, 2006. http://ndltd.ncl.edu.tw/handle/rhs289.

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碩士
國立臺灣科技大學
化學工程系
94
The effect of three series of additives, including(1) reactive microgel particle, (2) nano- scale core-shell rubber toughener, and (3) montmori- llonite clay, on the morphology, volume shrinkage characteristics, and internal pigmentability for the styrene(ST)/ unsaturated polyester(UP) /additive ternary systems after the cure were investigated. The experi- mental results have been explained by integrated measurements com- bining phase characteristic of the ST/UP/additive ternary system before the cure, cured sample morphology, final cure conversion, and volume fraction of microvoid generated during the cure.
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21

Liou, Wan-Da, i 廖萬達. "Effects of reactive microgel particle type of low-profile additives, nano-scale core-shell rubber tougheners, and montmorillonite clay on the volume shrinkage, internal pigmentability, and cured sample morphology forstyrene/unsaturated polyester/additive". Thesis, 2005. http://ndltd.ncl.edu.tw/handle/45655348801677122493.

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Streszczenie:
碩士
國立臺灣科技大學
化學工程系
93
The effect of four series of additives, including(1)poly(vinyl acetate) (PVAc), (2)polycaprolactone(PCL) low-profile additives, (3)reactive microgel particle, (4) montmorillonite clay, on the microvoid formation, morphology, volume shrinkage characteristics,internal pigmentability and mechanical properties for the styrene/unsaturated polyester/additive ternary systems after the cure were investigated. The experimental results have been explained by phase characteristic of the styrene/ unsaturated poly- ester /additive ternary system before tht cure, cured sample morph- ology and volume fraction of microvoid generated during the cure.
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22

sian, Lin-wu, i 林武賢. "Effects of nano-scale and submicron-scale core-shell rubber additives, and montmorillonite clay on the volume shrinkage, internal pigmentability, mechanical properties and cured sample morphology for styrene/ vinyl ester /additive ternary systems". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/59891411287188023940.

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Streszczenie:
碩士
國立臺灣科技大學
化學工程系
96
The effects of two additives, including (1) nano- scale and submicron-scale core-shell rubber additive, and (2) montmorillonite clay, on the cured sample morphology, volume shrinkage characteristics and internal pigmentability, mechanical properties of the styrene(St)/Unsaturated Polyester(UP)/additives ternary systems after the cure have been investigated. The experimental results have been explained by integrated measurements combining phase characteristic of the St/UP/additive ternary system before the cure, XRD analysis , cured sample morphology, final cure conversion, and volume fraction of microvoid generated during the cure by using DSC , SAXS , WAXS , SEM , TEM , OM and image analysis. Then the scattering intensity of unsaturated polyester (UP) with different structure in dilute styrene solution was measured by the method of small angle X-ray scattering (SAXS), and the radius of gyration of the UP molecule can then be calculated by using the Guinier law. For St/UP/ silane-treated MMT ternary systems, I try to calculate the gallery spacing change of MMT clay by intensity of different concentration cured samples.
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23

Chen, Hsiao-Lan, i 陳曉蘭. "Effects of nano-scale and submicron-scale core-shell rubber additives, inorganic silica gel/organic polymer core-shell particle, and montmorillonite clay on the cured sample morphology ,volume shrinkage, internal pigmentability, and mechanical properties". Thesis, 2010. http://ndltd.ncl.edu.tw/handle/04232091512842434823.

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Streszczenie:
碩士
國立臺灣科技大學
化學工程系
98
The effects of four additives, including (1) nano- scale and submicron-scale core-shell rubber additive,(2) inorganic silica gel/organic polymer core-shell particle, (3) montmorillonite clay and (4)Raft CSR, on the cured sample morphology, volume shrinkage characteristics and , mechanical properties of the styrene(St)/ Vinyl ester resin (VER)/ additives ternary systems and Epoxy/curing agent /additive ternary systems after the cure have been investigated. The experimental results have been explained by integrated measurements combining phase characteristic of the St/VER/additive ternary system and Epoxy/curing agent /additive ternary systems before the cure, XRD analysis , cured sample morphology, final cure conversion, and volume fraction of microvoid generated during the cure by using DSC , SAXS , WAXS , SEM , TEM , OM and image analysis. Also the scattering intensity of vinyl ester resin (VER) and unsaturated polyester (UP) with different structure in dilute styrene solution was measured by the method of small angle X-ray scattering (SAXS), and the radius of gyration of VER and the UP molecule can then be calculated by using the Guinier law. ( keywords: core-shell rubber(CSR); montmorillonite (MMT); volume shrinkage;internal pigmentability;unsaturated polyester(UP); vinyl ester resin (VER);curing;mechanical properties;radius of gyration)
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24

Chang, Han-Wen, i 張瀚文. "Effects of nano-scale and submicron-scale core-shell rubber additives, inorganic silica gel/organic polymer core-shell particle, and montmorillonite clay on the cured sample morphology, volume shrinkage, internal pigmentability ,and mechanical properties". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/29214729275413454738.

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Streszczenie:
碩士
國立臺灣科技大學
化學工程系
97
The effects of two additives, including (1) nano- scale and submicron-scale core-shell rubber additive,(2) inorganic silica gel/organic polymer core-shell particle, and (3) montmorillonite clay, on the cured sample morphology, volume shrinkage characteristics and internal pigmentability, mechanical properties of the styrene(St)/ Vinyl ester resin (VER)/ additives ternary systems and Epoxy/curing agent /additive ternary systems after the cure have been investigated. The experimental results have been explained by integrated measurements combining phase characteristic of the St/VER/additive ternary system and Epoxy/curing agent /additive ternary systems before the cure, XRD analysis , cured sample morphology, final cure conversion, and volume fraction of microvoid generated during the cure by using DSC , SAXS , WAXS , SEM , TEM , OM and image analysis. Also the scattering intensity of vinyl ester resin (VER) and unsaturated polyester (UP) with different structure in dilute styrene solution was measured by the method of small angle X-ray scattering (SAXS), and the radius of gyration of VER and the UP molecule can then be calculated by using the Guinier law.
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25

Chiu, Shu-wei, i 邱淑微. "Effects of nano-scale and submicron-scale core-shell rubber additives, inorganic silica gel/organic polymer core-shell particle, and montmorillonite clay on the cure kinetics, glass transition temperatures, volume shrinkage, mechanical properties and cure". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/16096561528870591250.

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Streszczenie:
碩士
國立臺灣科技大學
化學工程系
99
The effects of four additives, including (1) nano- scale and submicron-scale core-shell rubber additive,(2) inorganic silica gel/organic polymer core-shell particle, (3) organic montmorillonite clay, on the cure kinetics, glass transition temperatures, cured sample morphology, volume shrinkage characteristics and mechanical properties of the Styrene(St)/ Unsaturated polyester (or Vinyl ester resin)/ additives ternary systems and Epoxy/curing agent /additive ternary systems after the cure have been investigated. The experimental results have been explained by integrated measurements combining phase characteristic of the St/VER/additive ternary system and Epoxy/curing agent /additive ternary systems before the cure, final cure conversion, glass transition temperature, SAXS and WAXS analysis, cured sample morphology and Mechanical properties. Also the scattering intensity of vinyl ester resin (VER) and unsaturated polyester (UP) with different structure in dilute styrene solution was measured by the method of small angle X-ray scattering (SAXS), and the radius of gyration of VER and the UP molecule can then be calculated by using the Guinier law.
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26

Oktavia, Hyurin, i 林優恩. "Effects of Nano-scale and Submicron-scale Core-shell Rubber Additives, Inorganic Silica/Organic Polymer Core-shell Particle, and Montmorillonite Clay on the Cure Kinetics, Glass Transition Temperatures, Volume Shrinkage, and Internal Pigmentability for Un". Thesis, 2010. http://ndltd.ncl.edu.tw/handle/56957295543964945444.

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Streszczenie:
碩士
國立臺灣科技大學
化學工程系
98
The effects of nano-scale and submicron-scale core shell rubbers (CSR), inorganic silica gel/organic polymer core-shell particle (CSP), silane-treated montmorillonite clay (MPSi-MMT) and alkyl-ammonium treated montmorillonite clay (AMMT) as low-profile additives (LPA) on the cure kinetics, glass transition temperatures and volume shrinkage for styrene (ST)/unsaturated polyester (or vinyl ester)/additive ternary systems and epoxy/curing agent/additive ternary systems have been investigated. The reaction kinetics during the cure was measured by Differential Scanning Calorimetry (DSC) and Fourier Transform Infrared Spectrometry (FTIR). Based on the Takayanagi mechanical models, the glass transition temperature in each region of the cured samples for ST/UP (or VER)/additive ternary systems and epoxy/curing agent/additive ternary systems was measured by the Dynamic Mechanical Analysis (DMA). The volume shrinkage of the cured sample was also measured using the density method. (Keyword: core-shell rubber (CSR) ; low-profile additive (LPA) ; montmorillonite (MMT) ; unsaturated polyester (UP) ; vinyl ester resin (VER) ; epoxy resin;curing kinetics ; glass transition temperature ; volume shrinkage)
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27

Huang, Hsin-Yao, i 黃新堯. "Effects of nano-scale core-shell rubber additives, inorganic silica /organic polymer core-shell particle, and montmorillonite clay on the cure kinetics, glass transition temperatures, volume shrinkage, mechanical properties and cured sample morphology for unsaturated polyester, vinyl ester, and epoxy resins". Thesis, 2012. http://ndltd.ncl.edu.tw/handle/s6k57x.

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Streszczenie:
碩士
國立臺灣科技大學
化學工程系
100
The effects of four additives, including (1) nano- scale core-shell rubber additive,(2) inorganic silica gel/organic polymer core-shell particle, (3) organic montmorillonite clay, on the cure kinetics, glass transition temperatures, cured sample morphology, volume shrinkage characteristics and mechanical properties of the Styrene(St)/ Unsaturated polyester (or Vinyl ester resin)/ additives ternary systems and Epoxy/curing agent /additive ternary systems after the cure have been investigated. The experimental results have been explained by integrated measurements combining phase characteristic of the St/VER/additive ternary system and Epoxy/curing agent /additive ternary systems before the cure, final cure conversion, glass transition temperature, SAXS and WAXS analysis, cured sample morphology and Mechanical properties. Also the scattering intensity of vinyl ester resin (VER) and unsaturated polyester (UP) with different structure in dilute styrene solution was measured by the method of small angle X-ray scattering (SAXS), and the radius of gyration of VER and the UP molecule can then be calculated by using the Guinier law. The reaction kinetics for the ST/UP(or VER)/additive ternary system during the cure was measured by differential scanning calorimetry(DSC) and Fourier transform infrared spectrometry (FTIR). Finally, based on the Takayanagi mechanical models, the glass transition temperature in each region of the cured samples for ST/UP(or VER)/additive ternary system has been measured by dynamic mechanical analysis (DMA).
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28

Liu, Yi-Shan, i 劉伊珊. "Effects of nano- and submicron-scale core-shell rubber, inorganic/organic hybrid core-shell particle, and montmorillonite clay on cure kinetics, glass transition temperatures, volume shrinkage, mechanical properties and cured sample morphology for unsaturated polyester, vinyl ester, and epoxy resins". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/46798222045048248037.

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Streszczenie:
碩士
國立臺灣科技大學
化學工程系
101
The effects of four additives, including (1) nano- scale core-shell rubber additive,(2) inorganic silica gel/organic polymer core-shell particle, (3) organic montmorillonite clay, on the cure kinetics, glass transition temperatures, cured sample morphology, volume shrinkage characteristics and mechanical properties of the Styrene(St)/ Unsaturated polyester (or Vinyl ester resin)/ additives ternary systems and Epoxy/curing agent /additive ternary systems after the cure have been investigated. The experimental results have been explained by integrated measurements combining phase characteristic of the St/VER/additive ternary system and Epoxy/curing agent /additive ternary systems before the cure, final cure conversion, glass transition temperature, SAXS and WAXS analysis, cured sample morphology and Mechanical properties. Also the scattering intensity of vinyl ester resin (VER) and unsaturated polyester (UP) with different structure in dilute styrene solution was measured by the method of small angle X-ray scattering (SAXS), and the radius of gyration of VER and the UP molecule can then be calculated by using the Guinier law. The reaction kinetics for the ST/UP(or VER)/additive ternary system during the cure was measured by differential scanning calorimetry(DSC) and Fourier transform infrared spectrometry (FTIR). Finally, based on the Takayanagi mechanical models, the glass transition temperature in each region of the cured samples for ST/UP(or VER)/additive ternary system has been measured by dynamic mechanical analysis (DMA).
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29

Manosuthikij, Thammanoon. "Studies on volume change movements in high PI clays for better design of low volume pavements". 2008. http://hdl.handle.net/10106/1139.

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30

Florey, Charles William. "Measurements of clay properties for green sand applications". 1998. http://catalog.hathitrust.org/api/volumes/oclc/41942322.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1998.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 54-55).
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31

Tsai, Sung-chi, i 蔡松基. "A Study of Different Volume Fraction of Cu-Al Clad Sheet Metal in Drawing Property". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/63988759321722721982.

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32

Rawling, J. Elmo. "Clay lamellae in the Upper Mississippi River Valley, Wisconsin". 1997. http://catalog.hathitrust.org/api/volumes/oclc/37752810.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1997.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 57-59).
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33

Hardianto, Fransiscus S. "Representative sample size for hydraulic conductivity of compacted clay". 1992. http://catalog.hathitrust.org/api/volumes/oclc/26102542.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1992.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 112-115).
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34

Zhang, Xiujuan. "Effect of pulp and paper processing on the surface characteristics of wood pulp fibers". 2000. http://catalog.hathitrust.org/api/volumes/oclc/50045475.html.

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Streszczenie:
Thesis (M.S.)--University of Wisconsin--Madison, 2000.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 102-108).
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35

Abichou, Tarek. "Field evaluation of geosynthetic insulation for protection of clay liners". 1993. http://catalog.hathitrust.org/api/volumes/oclc/32695971.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1993.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 90-93).
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36

Kolstad, Dale Christian. "Compatibility of geosynthetic clay liners (GCLs) with multi-species inorganic solutions". 2000. http://catalog.hathitrust.org/api/volumes/oclc/47206654.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 2000.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 118-124).
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37

Lanier, Alyssa Anne. "Transport of volatile organic compounds (VOCs) through a geosynthetic clay liner (GLC)". 2002. http://catalog.hathitrust.org/api/volumes/oclc/50879135.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 2002.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 81-84).
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38

Vasko, Scott M. "Hydraulic conductivity of prehydrated geosynthetic clay liners permeated with calcium chloride solutions". 1999. http://catalog.hathitrust.org/api/volumes/oclc/48152240.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1999.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 98-101).
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39

Wambold, Wayne S. "Large and small scale laboratory tests of VOC transport through compacted clay". 1993. http://catalog.hathitrust.org/api/volumes/oclc/32679626.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1993.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 103-106).
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40

"The Effect of Cracks on Unsaturated Flow and Volume Change Properties of Expansive Clays and Impacts on Foundation Performance". Doctoral diss., 2011. http://hdl.handle.net/2286/R.I.14459.

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abstract: The primary objective of this study is to understand the effect of soil cracking on foundation performance for expansive soil profiles. Two major effects of cracks were studied to assess the effect of cracks on foundation performance. First, the effect of cracks on soil volume change response was studied. Second, the effect of cracks on unsaturated flow properties and extent and degree of wetting were evaluated. Multiple oedometer-type pressure plate tests were conducted to evaluate the effect of cracks on soil properties commonly used in volume change (heave) analyses, such as swell pressure, soil water characteristic curve (SWCC), and swell potential. Additionally, the effect of cracks on saturated and unsaturated hydraulic conductivity was studied experimentally to assess the impact of cracks on properties critical to evaluation of extent and degree of wetting. Laboratory experiments were performed on both intact and cracked specimen so that the effect of cracks on behavior could be benchmarked against intact soil response. Based on laboratory observations, the SWCC of a cracked soil is bimodal. However, this bimodal behavior is only observed in the very low suction ranges. Because the bimodal nature of the SWCC of cracked clays is only distinguishable at extremely low suctions, the bimodal behavior is unlikely to have engineering significance when soils remain unsaturated. A "lumped mass" parameter approach has been studied as a practical approach for modeling of cracked soils for both fluid flow and volume change determination. Laboratory unsaturated flow experiments were simulated using a saturated-unsaturated flow finite element code, SVFlux, to back-analyze unsaturated hydraulic conductivity functions for the subject soils. These back-analyzed results were compared to the results from traditionally-applied analyses of the laboratory instantaneous profile tests on intact and cracked specimens. Based on this comparison, empirical adjustments were suggested for modeling "lumped mass" cracked soil behavior in numerical codes for fluid flow through cracked soils. Using the empirically adjusted flow parameters for unsaturated flow modeling, example analyses were performed for slab-on-grade problems to demonstrate the impact of cracks on degree and extent of wetting under unsaturated and saturated flow conditions for different surface flux boundary conditions.
Dissertation/Thesis
Ph.D. Civil and Environmental Engineering 2011
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41

Heim, David P. "Advective and diffusive transport of three volatile organic compounds through a compacted clay". 1992. http://catalog.hathitrust.org/api/volumes/oclc/25776245.html.

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Streszczenie:
Thesis (M.S.)--University of Wisconsin--Madison, 1992.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 97-101).
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42

Abu-Hassanein, Zeyad Said. "Use of electrical resistivity measurement as a quality control tool for compacted clay liners". 1994. http://catalog.hathitrust.org/api/volumes/oclc/32769777.html.

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Streszczenie:
Thesis (M.S.)--University of Wisconsin--Madison, 1994.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 104-113).
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43

Albrecht, Brian Andrew. "Effect of desiccation on compacted clays". 1996. http://catalog.hathitrust.org/api/volumes/oclc/37342428.html.

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Streszczenie:
Thesis (M.S.)--University of Wisconsin--Madison, 1996.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 112-115).
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44

Trast, John Mathew. "Hydraulic conductivity of thirteen compacted clays". 1993. http://catalog.hathitrust.org/api/volumes/oclc/32679505.html.

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Streszczenie:
Thesis (M.S.)--University of Wisconsin--Madison, 1993.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 148-151).
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45

Chirapravati, M. L. Pattaratorn. "The cult of votive tablets in Thailand, sixth to thirteenth centuries". 1994. http://catalog.hathitrust.org/api/volumes/oclc/63882009.html.

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46

Williams, Gregory D. "Modeling metal-clad wood-framed diaphragm assemblies". 1998. http://catalog.hathitrust.org/api/volumes/oclc/42896137.html.

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47

Li, Owen. "X-ray absorption studies of smectite clays". 2004. http://catalog.hathitrust.org/api/volumes/oclc/58479954.html.

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48

Rauen, Tammy L. "Effects of leachate from bioreactor and recirculation landfills on the hydraulic conductivity of geosynthetic clay liners". 2007. http://catalog.hathitrust.org/api/volumes/oclc/163567648.html.

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Streszczenie:
Thesis (M.S.)--University of Wisconsin--Madison, 2007
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 59-61).
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49

Theriault, Richard Pierre. "Modeling and simulation of the manufacturing of copper-clad laminates". 1998. http://catalog.hathitrust.org/api/volumes/oclc/40309170.html.

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50

Sutherland, Andrea W. "Soil development and clay mineral composition of pre-late Wisconsin till units in northeastern Clark and southeastern Taylor counties, Wisconsin". 1989. http://catalog.hathitrust.org/api/volumes/oclc/19731780.html.

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Streszczenie:
Thesis (M.S.)--University of Wisconsin--Madison, 1989.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 114-120).
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