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Academic literature on the topic 'Infiltratin'

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Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Infiltratin"

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Liu, Jie, Huai Xiu Lu, Long Quan Shao, Bin Deng, Yuan Fu Yi, Jie Mo Tian, Wei Wei Zhang, and Ning Wen. "Evaluation of Glass Infiltration Speed within Dental CAD/CAM Alumina at Different Temperatures." Advanced Materials Research 177 (December 2010): 314–17. http://dx.doi.org/10.4028/www.scientific.net/amr.177.314.

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Objective: to investigate glass infiltrating rates (depth/time) within dental CAD/CAM alumina at different temperatures. Methods: micron α-alumina powder was prepared with cold isostastic pressure at 250 MPa and sintered at 1450°C. The presintered alumina specimens were then infiltrated with special glass at 1150°C, 1200°C and 1250 °C. The infiltrating depths and time to form the infiltrate at the different temperatures were evaluated. Results: As the infiltrating temperature increased, the viscosity of the infiltrating glass decreased, and the infiltrating depth increased. A 1 mm infiltration depth into the presintered alumina at 1150°C, 1200°C and 1250°C required 95 min, 22 min and 8 min, respectively. Conclusion: An optimal infiltrating time required to reach a suitable infiltration depth into the presintered alumina was observed at 1200°C, an important finding for clinical applications at this commonly used furnace temperature.
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Murphy, Christopher, Erjon Agushi, Zhangjie Su, Rainer Hinz, Federico Roncaroli, and David Coope. "Quantitative Diffusion Tensor Imaging (DTI) Analysis Reveals Different Infiltrative Patterns of Oligodendrogliomas and Astrocytomas in Peri-Tumour White Matter." Neurosurgery 84, no. 5 (March 23, 2019): E273. http://dx.doi.org/10.1093/neuros/nyz001.ni2.

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Abstract INTRODUCTION Gliomas are highly infiltrative primary brain tumours. Glioma infiltration is difficult to identify clinically using conventional diagnostic imaging. We used diffusion tensor imaging (DTI) to identify glioma infiltration in peritumour white matter (WM) and characterized differences between histological subtypes. METHODS We recruited 8 patients with a histological diagnosis of grade II or III glioma and 10 healthy controls. We compared fractional anisotropy (FA) maps of each patient against the control group using SPM8 (Matlab 2014a) to identify regions of glioma infiltration. The FA and mean diffusivity (MD) of formerly WM matter tumour regions, infiltrated WM and normal appearing WM were compared with a 2-sample t-test and characterized with respect to normal control data. RESULTS Our results have identified radiological evidence of infiltration in the peri-tumour WM of glioma patients. The infiltrated region of oligodendrogliomas extended further than that of astrocytomas. Oligodendrogliomas preferentially infiltrated larger WM tracts, whereas astrocytomas infiltrated more peripheral WM. In all grades, the 3 regions had significantly different diffusion parameters and there were significant differences between oligodendrogliomas and astrocytomas. CONCLUSION We identified previously unrecognized study wide significant changes in the peri-tumour WM of gliomas. Despite the known propensity of these tumours to infiltrate WM we found no significant DTI changes distant to the tumour. Our DTI results suggest oligodendrogliomas and astrocytomas demonstrate different infiltrative patterns, which highlights the need for astrocytomas and oligodendrogliomas to be studied separately.
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Rodríguez-Guerrero, Alejandro, Javier Narciso, Enrique Louis, and F. Rodríguez-Reinoso. "Reducing Threshold Pressure for Infiltration of Al-12Si Alloys into Carbon Particle Compacts by Placing a Thin Layer of Sn at the Infiltration Front." Materials Science Forum 539-543 (March 2007): 785–90. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.785.

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The oxide layer that usually covers the surface of liquid aluminum and its alloys, is one of the main factors that hinders infiltration of these alloys into graphite particle compacts. The oxide film increases the threshold pressure for infiltration and the porosity of the resulting composites is large because the wetting at the metal/carbon interface is reduced. Infiltrating graphite compacts with tin requires, however, a much lower pressure, less than half of that required to infiltrate the eutectic Al-12Si alloy. As the surface tension of tin is half that of the Al-12Si alloy, this result indicates that wetting at the Sn/C interface is slightly better. As a result, porosity in the infiltrated samples is reduced. In order to reduce the threshold pressure and improve the properties of Al-Si/graphite composites, a novel method has been used in this work that consists in placing a thin film of tin at the compact end through which infiltration takes place. During the infiltration process the graphite particles are firstly infiltrated by tin, which is pushed by the aluminum alloy, thus avoiding the oxidation of the latter. The method proved to be very effective in reducing the threshold pressure, while keeping almost constant the infiltration rate.
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Briscoe, D. M., J. S. Pober, W. E. Harmon, and R. S. Cotran. "Expression of vascular cell adhesion molecule-1 in human renal allografts." Journal of the American Society of Nephrology 3, no. 5 (November 1992): 1180–85. http://dx.doi.org/10.1681/asn.v351180.

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The expression of vascular cell adhesion molecule-1 (VCAM-1) in 11 human renal allograft biopsies and 3 normal kidney specimens was investigated by immunocytochemistry. VCAM-1 expression was correlated with the degree of CD3+ T cell infiltration and the clinicopathologic diagnosis of acute rejection. CD3+ infiltrates were seen in all biopsies with rejection, but not in normal biopsies or one with acute tubular necrosis, and were accompanied by CD68+ monocyte/macrophage infiltrates. In normal biopsies, VCAM-1 was present on occasional tubules, where its expression was patchy and restricted to the basolateral surface of cells with slight cytoplasmic staining. The total number of tubules expressing VCAM-1 significantly increased in specimens infiltrated with CD3+ T cells. Moreover, in these infiltrated biopsy specimens, VCAM-1 was present throughout the cytoplasm of tubular cells concentrated on the basolateral surface. VCAM-1 was also observed on vascular endothelial cells where its expression correlated with the degree of CD3+ infiltrate. Mean scores (0 to 3+) for endothelial VCAM-1 expression increased from 0 (CD3+ score, 0) to a mean score of 2.25 in association with CD3+ T cell infiltrates (CD3+ score, 3). Endothelial VCAM-1 was predominantly on vessels in areas of infiltrate, including peritubular capillaries, venules, and arterioles, but was notably absent on glomerular endothelium. VCAM-1 also stained mesangial cells in an occasional CD3+ infiltrated specimen. It was concluded that the expression of VCAM-1 is increased on renal tubules and renovascular endothelium in rejecting renal allografts in association with CD3+ infiltrates.(ABSTRACT TRUNCATED AT 250 WORDS)
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Seyboldt, Christoph, Mathias Liewald, and Daniel Heydt. "Production of Aluminium Based Interpenetrating Phase Composites Using Semi-Solid Forming." Key Engineering Materials 716 (October 2016): 502–9. http://dx.doi.org/10.4028/www.scientific.net/kem.716.502.

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The following paper deals with the production of Interpenetrating Phase Composites (IPC) using semi-solid forming technology. Therefore, adequate ceramic foams were selected and infiltrated by processing the aluminium alloy A356 in the semi-solid state. In the studies presented in this paper, the infiltrations of two ceramic materials (Al2O3 and SiC) with three different pore sizes (10, 20 and 30 ppi) were investigated. During the forming process the liquid phase fraction of the aluminium was varied to analyze infiltration effects in relation to the raw material´s liquid phase fraction. Afterwards, microsections of the produced specimens were analyzed in order to characterize their microstructure and the quality of infiltration. The results showed that completely filled composite components with good mechanical properties can be produced by infiltrating ceramic preforms with a semi-solid aluminium alloy.
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Lilbæk, G., and J. W. Pomeroy. "Laboratory evidence for enhanced infiltration of ion load during snowmelt." Hydrology and Earth System Sciences 14, no. 7 (July 29, 2010): 1365–74. http://dx.doi.org/10.5194/hess-14-1365-2010.

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Abstract. Meltwater ion concentration and infiltration rate into frozen soil both decline rapidly as snowmelt progresses. Their temporal association is highly non-linear and a covariance term must be added in order to use time-averaged values of snowmelt ion concentration and infiltration rate to calculate chemical infiltration. The covariance is labelled enhanced ion infiltration and represents the additional ion load that infiltrates due to the timing of high meltwater concentration and infiltration rate. Previous assessment of the impact of enhanced ion infiltration has been theoretical; thus, experiments were carried out to examine whether enhanced infiltration can be recognized in controlled laboratory settings and to what extent its magnitude varies with soil moisture. Three experiments were carried out: dry soil conditions, unsaturated soil conditions, and saturated soil conditions. Chloride solutions were added to the surface of frozen soil columns; the concentration decreased exponentially over time to simulate snow meltwater. Infiltration excess water was collected and its chloride concentration and volume determined. Ion load infiltrating the frozen soil was specified by mass conservation. Results showed that infiltrating ion load increased with decreasing soil moisture as expected; however, the impact of enhanced ion infiltration increased considerably with increasing soil moisture. Enhanced infiltration caused 2.5 times more ion load to infiltrate during saturated conditions than that estimated using time-averaged ion concentrations and infiltration rates alone. For unsaturated conditions, enhanced ion infiltration was reduced to 1.45 and for dry soils to 1.3. Reduction in infiltration excess ion load due to enhanced infiltration increased slightly (2–5%) over time, being greatest for the dry soil (45%) and least for the saturated soil (6%). The importance of timing between high ion concentrations and high infiltration rates was best illustrated in the unsaturated experiment, which showed large inter-column variation in enhanced ion infiltration due to variation in this temporal covariance.
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Lilbæk, G., and J. W. Pomeroy. "Evidence for enhanced infiltration of ion load during snowmelt." Hydrology and Earth System Sciences Discussions 7, no. 1 (February 24, 2010): 1431–57. http://dx.doi.org/10.5194/hessd-7-1431-2010.

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Abstract. Meltwater ion concentration and infiltration rate into frozen soil both decline rapidly as snowmelt progresses. Their temporal association is highly non-linear and a covariance term must be added in order to use time-averaged values of snowmelt ion concentration and infiltration rate to calculate chemical infiltration. The covariance is labelled enhanced infiltration and represents the additional ion load that infiltrates due to the timing of high meltwater concentration and infiltration rate. Previous assessment of the impact of enhanced infiltration has been theoretical; thus, experiments were carried out to examine whether enhanced infiltration can be recognized in controlled laboratory settings and to what extent its magnitude varies with soil moisture. Three experiments were carried out: dry soil conditions, unsaturated soil conditions, and saturated soil conditions. Chloride solution was added to the surface of frozen soil columns; the concentration decreased exponentially over time to simulate snow meltwater. Infiltration excess water was collected and its chloride concentration and volume determined. Ion load infiltrating the frozen soil was specified by mass conservation. Results showed that infiltrating ion load increased with decreasing soil moisture as expected; however, the impact of enhanced infiltration increased considerably with increasing soil moisture. Enhanced infiltration caused 2.5 times more ion load to infiltrate during saturated conditions than that estimated using time-averaged ion concentrations and infiltration rates alone. For unsaturated conditions, enhanced infiltration was reduced to 1.45 and for dry soils to 1.3. Reduction in infiltration excess ion load due to enhanced infiltration increased slightly (2–5%) over time, being greatest for the dry soil (45%) and least for the saturated soil (6%). The importance of timing between high ion concentrations and high infiltration rates was best illustrated in the unsaturated experiment, which showed large inter-column variation in enhanced ion infiltration due to variation in this temporal covariance.
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Xiong, Ying, Zewei Wang, Quan Zhou, Han Zeng, Hongyu Zhang, Zhaopei Liu, Qiuren Huang, et al. "Identification and validation of dichotomous immune subtypes based on intratumoral immune cells infiltration in clear cell renal cell carcinoma patients." Journal for ImmunoTherapy of Cancer 8, no. 1 (March 2020): e000447. http://dx.doi.org/10.1136/jitc-2019-000447.

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BackgroundIncreasing evidence has elucidated the clinical significance of tumor infiltrating immune cells in predicting outcomes and therapeutic efficacy. In this study, we comprehensively analyze the tumor microenvironment (TME) immune cell infiltrations in clear cell renal cell carcinoma (ccRCC) and correlated the infiltration patterns with anti-tumor immunity and clinical outcomes.MethodsWe analyzed immune cell infiltrations in four independent cohorts, including the KIRC cohort of 533 patients, the Zhongshan ccRCC cohorts of 259 patients, the Zhongshan fresh tumor sample cohorts of 20 patients and the Zhongshan metastatic ccRCC cohorts of 87 patients. Intrinsic patterns of immune cell infiltrations were evaluated for associations with clinicopathological characteristics, underlying biological pathways, genetic changes, oncological outcomes and treatment responses.ResultsUnsupervised clustering of tumor infiltrating immune cells identified two microenvironment subtypes, TMEcluster-A and TMEcluster-B. Gene markers and biological pathways referring to immune evasion were upregulated in TMEcluster-B. TMEcluster-B associated with poor overall survival (p<0.001; HR 2.629) and recurrence free survival (p=0.012; HR 1.870) in ccRCC validation cohort. TMEcluster-B cases had worse treatment response (p=0.009), overall survival (p<0.001; HR 2.223) and progression free survival (p=0.015; HR 2.7762) in metastatic ccRCC cohort. The predictive accuracy of International Metastatic Database Consortium risk score was improved after incorporation of TME clusters.ConclusionsTMEcluster-A featured increased mast cells infiltration, prolonged survival and better treatment response. TMEcluster-B was a heavily infiltrated but immunosuppressed phenotype enriched for macrophages, CD4+T cells, Tregs, CD8+T cells and B cells. TMEcluster-B predicted dismal survival and worse treatment response in clear cell renal cell carcinoma patients.
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Moyo, Tamara K., Anass Bouchnita, Nathalie Eymard, Vitaly Volpert, and Mark J. Koury. "Effects of Bone Marrow Infiltration By Multiple Myeloma on Erythropoiesis." Blood 126, no. 23 (December 3, 2015): 2143. http://dx.doi.org/10.1182/blood.v126.23.2143.2143.

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Abstract Diseases that infiltrate the bone marrow disrupt erythropoiesis leading to anemia. In multiple myeloma (MM), anemia severity can be correlated with degree of marrow infiltration by myeloma cells. Infiltrating MM may impair the function and structure of erythroblastic islands (EBIs), the marrow erythropoietic niches. An EBI consists of a central macrophage surrounded by colony-forming units-erythroid/proerythroblasts (CFU-E/pro-EBs) and their progeny, the differentiating erythroblasts. Cytokines produced by MM cells, such as Fas ligand (FL), tumor necrosis factor (TNF), and TNF-related apoptosis-inducing ligand (TRAIL), can induce erythroid cell apoptosis. Physical displacement of the erythroid cells away from central macrophages by MM can destroy the EBIs. Non-erythrotoxic therapies that kill MM cells while sparing erythropoietic cells allow quantification of erythropoiesis and marrow MM infiltration before and after treatment of newly diagnosed MM patients. Marrow biopsies from 15 newly diagnosed MM patients were obtained before and after 4 courses of non-erythrotoxic induction therapy with bortezomib, dexamethasone, and lenalidomide (Richardson et al, Blood 2010). CBCs and serum MM paraprotein quantifications were obtained with the marrow biopsies and before each course of therapy. No patient had renal insufficiency, iron or cobalamin deficiency, erythropoietin (EPO) therapy, or RBC transfusion. At diagnosis, percentages of marrow space occupied by MM and erythroid cells were negatively correlated. Percentages of marrow space infiltrated by MM (range = 2.3 - 72.3%) were also negatively correlated with hemoglobin (Hb), hematocrit (Hct) and RBCs. One patient had a partial response: marrow myeloma decreasing from 27.5% to 5.3%. All other patients had reductions in marrow myeloma to < 2.2%. The 8 patients with < 30% MM infiltration at diagnosis had no change (-1.4% to 1.8%) in marrow space occupied by erythroid cells following therapy, whereas 7 patients with > 35% MM infiltration at diagnosis increased marrow space occupied by erythroid cells following therapy (3.4 to 19.2%). Hb, Hct, and RBCs did not change during therapy in patients with < 30% MM infiltration, but those with > 35% myeloma infiltration at diagnosis had progressive increases in Hb, Hct, and RBCs during therapy. These clinical data were used to study the relationship between marrow infiltration by MM and erythropoiesis. Mathematical models of MM infiltration effects on marrow EBI structure/function were developed and tested in simulations. A previously developed hybrid discrete-continuous model of erythropoiesis based on EBI (Eymard et al, J Math Biol 2015) was extended to a larger area of marrow containing multiple EBIs. In the model, CFU-E/proEBs have 3 fates-- self-renewal, differentiation, and apoptosis--that depend upon factors produced systemically, such as glucocorticoids and EPO, and locally, such as stem cell factor and bone morphogenetic protein 4 by central macrophages and FL by mature erythroblasts. Intracellular regulatory networks were modeled with ordinary differential equations and extracellular concentrations by partial differential equations. Under normal conditions, EBIs achieve a steady-state that produces new RBCs at rates which maintain normal Hb, Hct and RBCs. At early times after the section of bone marrow is infiltrated by small foci of proliferating MM cells, EBI function is not affected. With further proliferation, infiltrating MM cells occupy more marrow space, inducing erythroid cell apoptosis by producing FL, TNF or TRAIL and by displacing erythroid cells from central macrophages, thereby destroying EBIs. However, central macrophages of destroyed islands persist or are replaced by differentiation of monocyte-macrophage precursors. After MM cells are killed by therapy, the residual macrophages can interact with burst-forming units-erythroid (BFU-E), thereby reestablishing EBIs. If the MM infiltrate is not sufficiently reduced after a course of therapy, it can physically interfere with the macrophage-BFU-E interaction, preventing the reestablishment of an EBI and full recovery of RBC production until a subsequent therapy reduces the infiltrate sufficiently that the EBI is reestablished. The model is consistent with the clinical data and may apply to other marrow infiltrative diseases including myelofibrosis, systemic infections, or other malignancies. Disclosures No relevant conflicts of interest to declare.
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Delgado, Anna F., Markus Nilsson, Francesco Latini, Johanna Mårtensson, Maria Zetterling, Shala G. Berntsson, Irina Alafuzoff, Jimmy Lätt, and Elna-Marie Larsson. "Preoperative Quantitative MR Tractography Compared with Visual Tract Evaluation in Patients with Neuropathologically Confirmed Gliomas Grades II and III: A Prospective Cohort Study." Radiology Research and Practice 2016 (2016): 1–15. http://dx.doi.org/10.1155/2016/7671854.

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Background and Purpose.Low-grade gliomas show infiltrative growth in white matter tracts. Diffusion tensor tractography can noninvasively assess white matter tracts. The aim was to preoperatively assess tumor growth in white matter tracts using quantitative MR tractography (3T). The hypothesis was that suspected infiltrated tracts would have altered diffusional properties in infiltrated tract segments compared to noninfiltrated tracts.Materials and Methods.Forty-eight patients with suspected low-grade glioma were included after written informed consent and underwent preoperative diffusion tensor imaging in this prospective review-board approved study. Major white matter tracts in both hemispheres were tracked, segmented, and visually assessed for tumor involvement in thirty-four patients with gliomas grade II or III (astrocytomas or oligodendrogliomas) on postoperative neuropathological evaluation. Relative fractional anisotropy (rFA) and mean diffusivity (rMD) in tract segments were calculated and compared with visual evaluation and neuropathological diagnosis.Results.Tract segment infiltration on visual evaluation was associated with a lower rFA and high rMD in a majority of evaluated tract segments (89% and 78%, resp.). Grade II and grade III gliomas had similar infiltrating behavior.Conclusion.Quantitative MR tractography corresponds to visual evaluation of suspected tract infiltration. It may be useful for an objective preoperative evaluation of tract segment involvement.
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Dissertations / Theses on the topic "Infiltratin"

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Zhang, Jie, and s3069216@student rmit edu au. "A laboratory scale study of infiltration from Pervious Pavements." RMIT University. Civil, Environmental and Chemical Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070125.164003.

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Increased urbanization causes pervious greenfields to be converted to impervious areas increasing stormwater runoff. Most of the urban floods occur because existing drainage systems are unable to handle peak flows during rainfall events. During a storm event, flood runoff will carry contaminants to receiving waters such as rivers and creeks. Engineers and scientists have combined their knowledge to introduce innovative thinking to manage the quality of urban runoff and harvest stormwater for productive purposes. The introduction of pervious pavements addresses all the principles in Water Sensitive Urban Design. A pervious pavement is a load bearing pavement structure that is permeable to water. The pervious layer sits on the top of a reservoir storage layer. Pervious pavements reduce the flood peak as well as improve the quality of stormwater at source before it is transported to receiving waters or reused productively. To be accepted as a viable solution, understanding of the influence of design parameters on the infiltration rate (both from the bedding and the sub-base) as well as strength of the pavement requires to be established. The design of a particular pavement will need to be customized for different properties of sub layer materials present in different sites. In addition, the designs will have to meet local government stormwater discharge standards. The design of drainage systems underneath pervious pavements will need to be based on the permeability of the whole pervious system. The objectives of the research project are to: • Understand the factors influencing infiltration capacities and percolation rates through the pervious surface as well as the whole pavement structure including the bedding and the sub-base using a laboratory experimental setup. • Obtain relationships between rainfall intensity, infiltration rate and runoff quantity based on the sub-grade material using a computational model to assist the design of pervious pavements. A laboratory scale pavement was constructed to develop relationships between the surface runoff and the infiltration volume from a pervious pavement with an Eco-Pavement surface. 2 to 5mm crushed gravel and 5 to 20mm open graded gravel were chosen as the bedding and sub-base material. Initial tests such as dry and wet density, crushing values, hydraulic conductivity, California Bearing Ratio tests for aggregate material were conducted before designing and constructing the pavement model. A rainfall simulator with evenly spaced 24 sprays was set up above the pervious pavement surface. The thesis presents design aspects of the laboratory scale pavement and the tests carried out in designing the pavement and the experimental procedure. The Green and Ampt model parameters to calculate infiltration were obtained from the laboratory test results from aggregate properties. Runoff results obtained from rainfall simulator tests were compared with the Green and Ampt infiltration model results to demonstrate that the Green and Ampt parameters could be successfully calculated from aggregate properties. The final infiltration rate and the cumulative infiltration volume of water were independent of the rainfall intensity once the surface is saturated. The model parameters were shown to be insensitive to the final infiltration capacity and to the total amount of infiltrated water. The Green and Ampt infiltration parameters are the most important parameters in designing pervious pavements using the PCSWMMPP model. The PCSWMMPP model is a Canadian model built specially for designing pervious pavements. This is independent of the type of sub-grade (sand or clay) determining whether the water is diverted to the urban drainage system (clay sub-grade) or deep percolation into the groundwater system (sand sub-grade). The percolation parameter in Darcy's law is important only if the infiltrated water recharges the groundwater. However, this parameter is also insensitive to the final discharge through the subgrade to the groundwater. The study concludes by presenting the design characteristics influencing runoff from a pervious pavement depending on the rainfall intensity, pavement structure and sub-grade material and a step-by step actions to follow in the design.
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Snow, Daniel Owens. "Modeling and Effects of Non-Homogeneous Infiltration on Material Properties of Carbon-Infiltrated Carbon Nanotube Forests." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/9216.

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This work investigates the material properties and production parameters of carbon infiltrated carbon nanotube structures (CI-CNT's). The impact of non homogeneous infiltration and the porosity of cross section regions, coupled with changes in designed geometry, in this case beam width, on the density and modulus of elasticity are compared. Three potential geometric models of beam cross section are proposed and evaluated. 3-point bending, SEM images, and numerical optimization are used to assess the validity of each model and the implications they have for future CI-CNT material applications. Carbon capping near exterior beam surfaces is observed and determined to be a contributing factor to variations in material properties correlated with changes in designed geometry and infiltration parameters (temperature, time, and hydrogen flow rate). Unexpected relationships between beam width and elastic modulus are partially explained by modeling the carbon-capped beams as C-shaped structural members consisting of a graphitic carbon shell of varying porosity and thickness and uninfiltrated carbon nanotube internal regions with a near negligible stiffness. Findings of previous works on the effects of infiltration parameters and carbon capping on materials properties are confirmed and expanded. Flange and web thickness and porosity of the graphitic carbon shell are identified as potential design parameters for pursuing tunable material properties in high precision geometry MEMS and compliant mechanism applications.
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Jiang, Yan [Verfasser]. "Growth and thermal stability of V-Al-C thin films and infiltration and oxidation resistance of Al2O3 infiltrated iron foam / Yan Jiang." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2013. http://d-nb.info/1037015444/34.

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Persson, Andreas. "Infiltration of Waldheim." Thesis, Blekinge Tekniska Högskola, Sektionen för teknokultur, humaniora och samhällsbyggnad, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1458.

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"Infiltration of Waldheim" är ett spel gjort av David Lindell (grafik), Andreas Persson (programmering) och Mathias Jönsson (ljud och musik). Målet vi hade med projektet var att ha en spelbar bana med minst en vapen typ samt fiender att eliminera, allt ackompanjerat med pampig musik och en massa ljudeffekter. Jag kommer i denna rapport beskriva arbetets gång samt reflektera över vad som har fungerat och vad som varit mindre bra under projektets gång. Mina planer för spelet var mest att lära mig mera om framförallt AI samt arbeta mera i 3d. Spelet ska mest vara för mig själv, men med lite putsning och mera innehåll eventuellt användas vid jobb ansökningar i framtiden.
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Montero, Rama María Del Pilar. "TOWARD NANOSTRUCTURED PEROVSKITE SOLAR CELLS BASED ON NANOPOROUS ANODIC ALUMINA TECHNOLOGY." Doctoral thesis, Universitat Rovira i Virgili, 2020. http://hdl.handle.net/10803/670596.

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En aquesta tesi es planteja fabricar una cel·la solar nano-estructurada de perovskita utilitzant alúmina nano-porosa anoditzada (NAA en les seves sigles en anglès) com a suport. Es va escollir la perovskita perquè les cel·les solars d'aquest material han assolit una eficiència molt similar a les cel·les existents de silici. A més a més, són barates i fàcils de preparar. El fet que la cel·la estigui nano-estructurada aportarà estabilitat davant la radiació, la temperatura i la humitat, sent aquest el principal problema d'aquests dispositius. Els nano-porus de la NAA tenen una forma cilíndrica molt ben definida on la grandària es pot controlar fàcilment sent tots els nano-porus iguals, el qual permetrà un major control sobre l'homogeneïtat del material infiltrat. Per tant l'objectiu de la tesi és aplicar la tecnologia de NAA a les cel·les solars de perovskita (CSP). Per això, primer va tenir lloc un procés de familiarització amb la fabricació i caracterització de NAA, així com dels CPSs d'alta eficiència, mitjançant mètodes estàndards coneguts. Un cop es va aconseguir la fabricació de NAA amb diferents mides de porus, la capa barrera d'alúmina que existeix entre l'alumini i el fons del porus va haver de ser eliminada, per poder aprofitar l'alumini (base de la NAA) com a contacte elèctric. Pel qual es va investigar i desenvolupar un nou mètode, ja que els mètodes existents no són adequats per eliminar la capa de barrera de gruixos superiors als 200 nm. Finalment es va estudiar la infiltració dels materials que formen una CSP en els nano-porus, mitjançant mètodes simples de deposició. Es va obtenir una cel·la solar nano-estructurada de perovskita utilitzant com a suport NAA, dels quals resultats d'eficiència són humils, pel fet que l'estructura plantejada en aquest treball és totalment innovadora. Fet que obre un ampli camí per futurs treballs.
En esta tesis se plantea fabricar una celda solar nano-estructurada de perovskita utilizando alúmina nano-porosa anodizada (NAA de sus siglas en inglés) como soporte. Se eligió la perovskita ya que las celdas solares de este material han alcanzado una eficiencia muy similar a las celdas existentes de silicio. Además, son baratas y fáciles de preparar. El hecho de que la celda este nano-estructurada aportará estabilidad frente a la radiación, temperatura y humedad, siendo este el principal problema de estos dispositivos. Los nano-poros de la NAA tienen una forma cilíndrica muy bien definida cuyo tamaño se puede controlar fácilmente siendo todos los nano-poros iguales, lo cual permitirá un mayor control sobre la homogeneidad del material infiltrado. Por lo que el objetivo de esta tesis es aplicar la tecnología de NAA a las celdas solares de perovskita (CSP). Para ello primero tuvo lugar el proceso de familiarización con la fabricación y caracterización de NAA, así como de CSPs de alta eficiencia, mediante métodos estándar conocidos. Una vez se consiguió la fabricación de NAA con diferentes tamaños de poro, la capa barrera de alúmina que existe entre el aluminio y el fondo del poro tuvo que ser eliminada, para poder aprovechar el aluminio (base de la NAA) como contacto eléctrico. Para lo cual se investigó y desarrolló un nuevo método, ya que los métodos existentes no son adecuados para eliminar capa de barrera de espesores superiores a los 200 nm. Finalmente se estudió la infiltración de los materiales que forman una CSP en los nano-poros, mediante métodos simples de deposición. Se obtuvo una celda solar nano-estructurada de perovskita utilizando como soporte NAA, cuyos resultados de eficiencia son humildes, debido a que la estructura planteada en este trabajo es totalmente novedosa. Lo cual abre un amplio camino para futuros trabajos.
In this thesis, the nanostructured perovskite solar cell manufacture using nanoporous anodic alumina (NAA) as a scaffold is proposed. The perovskite was chosen since the solar cells made with this material have achieved very similar efficiency to silicon cells. Also, they are cheap and easy to prepare. The fact that the cell will be nanostructured will provide stability against radiation, temperature and humidity, this being the main problem of these devices. The NAA nanopores have a very well defined cylindrical shape, whose size can be easily controlled, all nanopores being ident, which will allow greater control over the homogeneity of the infiltrated material. Therefore, this thesis aims to apply NAA technology to perovskite solar cells (PSCs). First, the familiarization process with the manufacture and characterization of NAA, as well as of high-efficiency PSCs, through known standard methods were carried out. Once the manufacture of NAA with different pore sizes was achieved, the alumina barrier layer that exists between the aluminium and the bottom of the nanopores had to be removed, to take advantage of the aluminium (base of the NAA) as an electrical contact. For which a new method was investigated and developed since existing methods are not suitable for removing barrier layer thicknesses greater than 200 nm. Finally, the infiltration of the materials that form a PSC within the nanopores was studied, utilizing simple deposition methods. A full working nanostructured perovskite solar cell was obtained using NAA as a scaffold, whose efficiency results are modest because the structure proposed in this work is novel. Which opens a wide path for future work.
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Auger, John Michael. "Discrete games of infiltration." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314935.

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Bancole, Apolline. "L'oxydation en infiltration percolation." Montpellier 2, 2001. http://www.theses.fr/2001MON20072.

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Nilsson, Peter. "Infiltration of wastewater : an applied study on treatment of wastewater by soil infiltration /." Lund, Sweden : Dept. of Environmental Engineering, Lund Institute of Technology, University of Lund, 1990. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=006106905&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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林紅 and Hung Lin. "Lymphocytic infiltration and nasopharyngeal carcinoma." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1990. http://hub.hku.hk/bib/B31209907.

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Lin, Hung. "Lymphocytic infiltration and nasopharyngeal carcinoma /." [Hong Kong] : University of Hong Kong, 1990. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12840956.

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Books on the topic "Infiltratin"

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Albert, Speer. Infiltration. New York: Ishi Press, 2010.

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Dalya, Bilu, ed. Infiltration. South Royalton, Vt: Zoland Books, 2003.

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Layzell, Richard. Infiltration. Coventry: Warwick Arts Centre, Mead Gallery, 1997.

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Infiltration. Vancouver, B.C., Canada: Orca Book Publishers, 2011.

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Kenaz, Yehoshua. Infiltration. South Royalton, VT: Zoland Books, 2004.

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Albert, Jean-Marie. L' infiltration. Paris: Des idées & des hommes, 2007.

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Rosello, Mireille. Infiltrating culture. New York: Manchester University Press, 1996.

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Stormwater infiltration. Boca Raton: Lewis Publishers, 1994.

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Empires: Infiltration. London: Gollancz, 2014.

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Infiltrator. New York: Pocket Books, 1996.

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Book chapters on the topic "Infiltratin"

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Bährle-Rapp, Marina. "Infiltration." In Springer Lexikon Kosmetik und Körperpflege, 279. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_5189.

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Chesworth, Ward, Augusto Perez‐Alberti, Emmanuelle Arnaud, H. J. Morel‐Seytoux, and H. J. Morel‐Seytoux. "Infiltration." In Encyclopedia of Soil Science, 350–62. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-3995-9_291.

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Gargouri-Ellouze, Emna, Saeid Eslamian, Kaveh Ostad-Ali-Askari, Rim Chérif, Maroua Bouteffeha, and Fairouz Slama. "Infiltration." In Encyclopedia of Earth Sciences Series, 513–15. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73568-9_169.

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Gargouri-Ellouze, Emna, Saeid Eslamian, Kaveh Ostad-Ali-Askari, Rim Chérif, Maroua Bouteffeha, and Fairouz Slama. "Infiltration." In Selective Neck Dissection for Oral Cancer, 1–3. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-12127-7_169-1.

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Vieux, Baxter E. "Infiltration." In Water Science and Technology Library, 95–120. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-015-9710-4_5.

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Perrier, E. R., and A. B. Salkini. "Infiltration." In Supplemental Irrigation in the Near East and North Africa, 133–44. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3766-9_9.

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Vieux, Baxter E. "Infiltration." In Water Science and Technology Library, 83–99. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-024-0930-7_5.

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Robinson, Chapman. "Eosinophilic lung disease." In Oxford Handbook of Respiratory Medicine, edited by Stephen J. Chapman, Grace V. Robinson, Rahul Shrimanker, Chris D. Turnbull, and John M. Wrightson, 289–96. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780198837114.003.0027.

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Pulmonary eosinophilias are disorders classically associated with CXR infiltrates and a raised blood eosinophil count, although eosinophilic infiltration of the lung can occur without blood eosinophilia. Eosinophilia is found on lung biopsy or BAL.
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Weidemann, Frank. "Genetics of cardiomyopathies: myocardial infiltration." In ESC CardioMed, 710–13. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0159.

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Genetic disease can lead to myocardial infiltration which results in a cardiomyopathy characterized by the deposition of storage products within ventricular walls. The storage is inducing diastolic filling abnormalities which are finally responsible for the symptoms such as dyspnoea. During follow-up most patients die because of heart failure. Transthyretin-related amyloidosis is the most common infiltrative cardiomyopathy. Rarer diseases are storage disorders such as Fabry disease and Pompe disease. The primary neurological disease Friedreich’s ataxia can in addition induce an infiltrative cardiomyopathy. This chapter focuses on the pathophysiology, the symptoms, the typical image findings, and the potential treatment of these different rare genetic infiltrative diseases.
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Hendrick, D. J., and G. P. Spickett. "Eosinophilic pneumonia." In Oxford Textbook of Medicine, 3428–31. Oxford University Press, 2010. http://dx.doi.org/10.1093/med/9780199204854.003.181402_update_001.

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Eosinophilic pneumonia occurs when alveolar spaces are consolidated because of eosinophil inflammation/infiltration, usually with an accompanying eosinophilia of peripheral blood. The diagnosis should be considered when infiltrates on a chest radiograph, often migratory, are associated with blood eosinophilia, and confirmed by demonstrating an excess of eosinophils in bronchoalveolar lavage fluid....
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Conference papers on the topic "Infiltratin"

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He, Zhoutong, Hui Tang, Can Zhang, Yantao Gao, Huihao Xia, and Xingtai Zhou. "The Compatibility of Nuclear Graphite With Molten Salt in the Molten Salt Reactor." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-82065.

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In thermal Molten Salt Reactors, the nuclear graphite core is in direct contact with the molten salt coolant. Due to the porous nature of nuclear graphite, the molten salt may infiltrate the nuclear graphite, which may affect the mechanical strength and irradiation behavior of the nuclear graphite. In order to evaluate the infiltration behavior of molten salt in nuclear graphite, both FLiNaK and FLiBe salts were used to infiltrate two typical nuclear graphite grades: IG110 and NBG18. The pressure dependence of the infiltration weight gain ratio was measured. The influence of molten salt infiltration on the thermal properties of these two graphite grades, such as their thermal expansion behavior and thermal conductivity, was also measured. The mechanical strength of the FLiNaK-infiltrated graphite was measured at room temperature and elevated temperature, and showed that the mechanical strength of the nuclear graphite was enhanced at room temperature and weakened at elevated temperature by molten salt infiltration. Finally, the thermal expansion coefficient and the fracture surface analysis measured after FLiNaK infiltration indicated that the stress induced by molten salt infiltration could be one of the reasons for the graphite property changes.
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Tucker, David, Ayyakkannu Manivannan, Dan Haynes, Harry Abernathy, Nick Miller, Karon Wynne, and Angine´s Matos. "Evaluating Methods for Infiltration of LSCF Cathodes With Mixed Electric/Ionic Conductors for Improved Oxygen Exchange." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33214.

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Infiltration methods for improving lanthanum strontium cobalt ferrite (LSCF) cathode performance through catalyst surface modification were evaluated at the U.S. Department of Energy, National Energy Technology Laboratory. Infiltration of mixed conductors into LSCF cathodes of solid oxide fuel cells promises a low cost method of improving oxygen exchange and performance in these materials at lower temperatures. LSCF cathodes on Nickel-Yttria Stabilized Zirconia (Ni-YSZ) anode supported cells were infiltrated with strontium-doped lanthanum zirconate (LSZ) pyrochlores using two methods. An aqueous solution of nitrate salts was vacuum infiltrated into the cathodes of anode supported button cells, and the cells were heated to form the pyrochlore phase in-situ. This was compared to the efficacy of infiltrating a suspension of pyrochlore nanoparticles. Different dispersants were used to prepare the nanoparticle suspensions at varying concentrations and pH levels, and the results are compared.
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Dittrich, Rosemarie, Eberhard Mu¨ller, and Uta Popp. "C/SiC Composites by Electrophoretical Infiltration." In ASME 2006 Multifunctional Nanocomposites International Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/mn2006-17014.

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Due to its high thermodynamical stability carbon fiber reinforced silicon carbide is an interesting material for high temperature applications. Studies are described to find an innovative route for fabricating C/SiC composites by using electrophoresis for infiltrating carbon fiber mats with non-aqueous suspensions of mixtures of silicon carbide powders, stabilizers and sintering aids. The suitability of nano-scaled and submicron powders is discussed. Based on investigations of the interaction between the SiC particle surfaces and the carbon fibers essential technological parameters of the electrophoretic infiltration are defined. The fabrication of C/SiC composites by lamination of single infiltrated fiber mats and a subsequent thermal process is demonstrated.
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Wang, Xiao, Yongtu Liang, Shengli Liu, and Mengyu Wu. "Analysis of Products Pipeline Accident Infiltration Process in Surface Soil Condition." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93069.

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Abstract The most common way of transportation for refined oil is long-distance pipeline. Pipeline accidents occur frequently due to corrosion, equipment failure, external forces destruction. Aiming at predicting the contaminated area in soil caused by products pipeline accidents, this experimental study was conducted to examine the relationship between the light non-aqueous phase liquids (LNAPL) accumulative infiltrate volume and the time of infiltration process in homogeneous and layered soils. The soil’s hydraulic parameters were obtained by basic experiments and RETC software. Compared with traditional infiltration mathematical model, Green-Ampt model is the most common mathematical model to calculate the infiltration process in the unsaturated soil. In this study, a modified Green-Ampt model was developed to describe water and diesel infiltration through a 100-cm-long and layered soil column. In the modified Green-Ampt model, an infiltration reduction ratio was introduced to describe the effect of the hydraulic conductivity of the layered position. To evaluate the proposed method in the effect of the layers position infiltration permeability, eight constant water head layered column infiltration experiment were conducted to record the different infiltration fluid and different constant water head infiltration process. Compared the experiment results with traditional mathematical traditional Green-Ampt model (average R2 = 0.976) and Hydrus-1D software (average R2 = 0.988) The modified Green-Ampt model had relatively higher precision in accumulative infiltrate volume (average R2 = 0.992) and the wetting front velocity in infiltration process (average R2 = 0.997). Thus, the modified mathematical model was applied an effective upscaling scheme in layered formations. The experimental result also demonstrated that soil layering affected the infiltration process. With the increase of soil depth and density, the infiltration speed of the layered soil column decreased. Additionally, the infiltrate speed of wetting front decreases slowly at the layered surface. The experiment’s fitting results showed that the modified mathematical model about infiltrate time and liquid contaminant accumulative infiltrate volume, wetting front infiltrate velocity can highly effective approach to simulate water and light non-aqueous phase liquids (LNAPL) infiltration process in layered soils.
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Ecker, Lynne, Jacopo Saccheri, Biays Bowerman, James Ablett, Laurence Milian, Jay Adams, Hans Ludwig, and Michael Todosow. "An Infiltration Manufacturing Process for Nuclear Fuels." In Fourth International Topical Meeting on High Temperature Reactor Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/htr2008-58204.

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The Infiltrated Kernel Nuclear Fuel (IKNF) process deposits nuclear fuel into the naturally occurring porosity in graphite. IKNF consists of infiltrating uranyl nitrate dissolved in an organic solvent into the graphite and then heat-treating the sample at low (<300°C) temperatures to remove the solvent and convert the uranyl nitrate to UO2. Complete conversion to UC2 can then be accomplished by heating to temperatures higher than 3000°C. IKNF is extremely flexible: it is appropriate for very high temperature applications and heating the infiltrated product to intermediate temperatures (higher than 900°C) produces nuclear fuel with a range of chemistries in the U-C-O system (similar to the current US TRISO fuel). It is probable that the process can also be used to produce fuel containing transuranics. It is believed that IKNF will be less expensive, more robust and more suitable for on-line quality monitoring than current fuel fabrication method. Graphite infiltration involves a few, easily measurable and controllable variables. It is reproducible and predictable.
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James, Sagil, and Cristian Navarro. "Molecular Dynamics Simulation of Nanoparticle Infiltration During Binder Jet Printing Additive Manufacturing Process: A Preliminary Study." In ASME 2019 14th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/msec2019-2872.

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Abstract Binder Jetting Process involves binding layers of powder material through selective deposition of a liquid binder. Binder jetting is a fast and relatively inexpensive process which does not require a high-powered energy source for printing purpose. Additionally, the binder jetting process is capable of producing parts with extreme complexities without using any support structures. These characteristics make binder jetting an ideal choice for several applications including aerospace, biomedical, energy, and several other industries. However, a significant limitation of binder jetting process is its inability to produce printed parts with full density thereby resulting in highly porous structures. A possible solution to overcome the porosity problems is to infiltrate the printed structures with low-melting nanoparticles. The infiltrating nanoparticles help fill up the voids to densify the printed parts and also aids in the sintering of the printed green parts. In addition to increasing the density, the nanoparticle infiltration also helps improve the mechanical, thermal and electrical properties of the printed part along with bringing multi-functionality aspect. Currently, there is a lack of clarity of the nanoparticle infiltration process performed to improve the quality of parts fabricated through binder jetting. This research employs Molecular Dynamics simulation techniques to investigate the nanoparticle infiltration during binder jetting additive manufacturing process. The simulation is performed at different operating temperatures of 1400 K, 1500 K, and 1600 K. The study found that the infiltration process is significantly affected by the operating temperature. The infiltration height is found to be highest at the operating temperature of 1600 K while the porosity reduction is found to be maximum at 1500 K. The infiltration kinetics is affected by the cohesion of the nanoparticles causing blockage of channels at higher operating temperatures. The simulation model is validated by comparing with the Lucas-Washburn infiltration model. It is seen that the simulation model deviates from the theoretical prediction suggesting that multiple mechanisms are driving the infiltration process at the nanoscale.
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Bourell, David L., Phani Vallabhajosyula, Brooke Stevinson, Ssuwei Chen, and Joseph J. Beaman. "Rapid Manufacturing Using Infiltration Selective Laser Sintering." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59084.

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Selective Laser Sintering (SLS) is tooless, computer-controlled layerwise additive manufacturing using a laser and a powder bed. The scanning laser locally melts the surface of a powder bed selectively, followed by deposition of a fresh layer of powder and repetition of the process. SLS has been developed for plastic powder. Creation of non-metallics and metal parts is more challenging. One approach is to mix the master powder with a transient binder. SLS melts the binder which wets the master powder, creating a green part. Subsequent post-processing is required to either remove the binder or convert it to a usable form. The last step is infiltration with a molten substance. Fundamentals of infiltration theory will be reviewed. A study of dimensional changes associated with various stages of processing reveals that overall linear dimensions vary less than one percent compared to the computer solid model. Several examples demonstrating the utility of an infiltration approach to freeform fabrication will be presented. These include silicon carbide with a phenolic binder, infiltrated with silicon; graphite with a phenolic binder infiltrated with epoxy; and tool steel with a proprietary low-ash binder infiltrated with cast iron.
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Impens, David, and Ruth Jill Urbanic. "An Analysis of Variation Correlating Post Processing Infiltrate Types, Build Parameters and Mechanical Characteristics for Binder Jet Built Parts." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52615.

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The 3D Printing (3DP) “binder jetting” process is an additive manufacturing process that fabricates components and assemblies by layering powered material, and applying a binder where a ‘solid interior’ should be. This process creates brittle components as a powder is set with a weak binder material; however, the component strength characteristics can be significantly modified when infiltrating the component during post processing operations. The different factors that can influence the mechanical properties when engaging in post-processing operations need to be understood. A full factorial design of experiments (DOE) is conducted for tensile, compressive, and flexural specimens for 10 infiltrate and various build conditions. The experiment and resultants are set up to perform an analysis of variance (ANOVA). All of the observed stress-strain curves for the specimens are non-linear, or have limited linear regions. The infiltrate absorption depth affects the mechanical characteristics, and the binder jetting specimens are stronger in compression than tension. The tensile test results are similar to those of biological materials. Certain infiltrates do not improve the mechanical performance characteristics, which are validated using the Tukey method. This research needs to be extended in scope to include additional build orientations as well as torsion, fatigue, and notch tests to be able to predict model sensitivities effectively for components built using the binder jetting process, and to develop optimization strategies, which include time, material, and strength conditions.
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Nemejcova, Kristyna, Ivana Ticha, Ondrej Kodet, Miroslav Dura, Michaela Bartu, and Pavel Dundr. "Abstract 4069: Evaluation of inflammatory infiltration (tumor infiltrating lymphocytes - TIL) in malignant melanoma." In Proceedings: AACR Annual Meeting 2018; April 14-18, 2018; Chicago, IL. American Association for Cancer Research, 2018. http://dx.doi.org/10.1158/1538-7445.am2018-4069.

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Farahani, Rouhollah Dermanaki, Hamid Dalir, Martin Le´vesque, and Daniel Therriault. "Mechanical Properties of Three-Dimensional Microstructures Infiltrated by Carbon Nanotube/Epoxy Nanocomposite Under Shear Flow." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39086.

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Three-dimensional interconnected microfluidic channels fabricated by the direct-write method were infiltrated with SWCNT/epoxy nanocomposites under high shear flow to mechanically characterize the effect of single-walled carbon nanotubes (SWCNTs) spatial orientation in thermosetting-matrix nanocomposites. The micron-size fugitive ink filaments were deposited layer by layer in order to form a scaffold followed by its encapsulation by an epoxy resin. Three-dimensional interconnected microfluidic channels were then obtained by heat curing the encapsulated epoxy followed by fugitive ink removal by liquefying it at high temperature under vacuum. To debundle the Laser-ablated single-walled carbon nanotubes (La-SWNTs), nitric acid treatment following introduction of protoporphyrin IX as surfactant were done to prevent reclustering of the CNTs after separation. La-SWNTs were then mixed with ultraviolet-curable epoxy using a three-roll mill machine to achieve a well-dispersed nanocomposite. The nanocomposites were then infiltrated within the empty channels at high pressures to induce shear. High shear flow infiltration of nanocomposites will cause the CNTs to be aligned in the direction of the channels where an increase in shear leads to an increase in CNT alignments. Finally, in order to mechanically investigate the effectiveness of the infiltration technique and the orientation of SWCNTs, tensile and three-point bending tests were done.
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Reports on the topic "Infiltratin"

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Shillito, Rose, Markus Berli, and Teamrat Ghezzehei. Quantifying the effect of subcritical water repellency on sorptivity : a physically based model. Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41054.

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Soil water wettability or water repellency is a phenomenon that can affect infiltration and, ultimately, runoff. Thus, there is a need to develop a model that can quantitatively capture the influence of water repellency on infiltration in a physically meaningful way and within the framework of existing infiltration theory. The analytical model developed in this study relates soil sorptivity (an infiltration parameter) with contact angle (a direct measure of water repellency) for variably saturated media. The model was validated with laboratory experiments using a silica sand of known properties treated to produce controlled degrees of water repellency. The measured contact angle and sorptivity values closely matched the model‐predicted values. Further, the relationship between the frequently used water drop penetration time test (used to assess water repellency) and sorptivity was illustrated. Finally, the direct impact of water repellency on saturated hydraulic conductivity was investigated due to its role in infiltration equations and to shed light on inconsistent field observations. It was found that water repellency had minimal effect on the saturated hydraulic conductivity of structureless sand. A quantitative model for infiltration incorporating the effect of water repellency is particularly important for post‐fire hydrologic modeling of burned areas exhibiting water repellent soils.
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Andre Unger and Gudmundur Bodvarsson Ardyth Simmons. Simulating Infiltration at the Large-Scale Ponded Infiltration Test, INEEL. Office of Scientific and Technical Information (OSTI), May 2001. http://dx.doi.org/10.2172/786550.

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McCurley, R. Analysis of Infiltration Uncertainty. Office of Scientific and Technical Information (OSTI), October 2003. http://dx.doi.org/10.2172/836530.

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Starr, T. L. Modeling of chemical vapor infiltration. Office of Scientific and Technical Information (OSTI), February 1989. http://dx.doi.org/10.2172/6408754.

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Pacira. Bilateral Tap Infiltration of EXPAREL. Touch Surgery Simulations, 2017. http://dx.doi.org/10.18556/touchsurgery/2017.s0115.

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Phifer, M. A. Engineered Trench #3 Infiltration Estimates. Office of Scientific and Technical Information (OSTI), December 2012. http://dx.doi.org/10.2172/1057752.

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Devlin, D. J. Microwave assisted chemical vapor infiltration. Office of Scientific and Technical Information (OSTI), December 1993. http://dx.doi.org/10.2172/10112511.

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8

Richards, B. T. Analysis of ICPP tank farm infiltration. Office of Scientific and Technical Information (OSTI), October 1993. http://dx.doi.org/10.2172/10136057.

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9

Feustel, H. Mathematical modelling of infiltration and ventilation. Office of Scientific and Technical Information (OSTI), November 1989. http://dx.doi.org/10.2172/7154245.

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10

Sherman, Max H., William J. N. Turner, and Iain S. Walker. Infiltration as Ventilation: Weather-Induced Dilution. Office of Scientific and Technical Information (OSTI), June 2011. http://dx.doi.org/10.2172/1173153.

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