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Relevant bibliographies by topics / Partial drainage condition

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Academic literature on the topic 'Partial drainage condition'

Author: Grafiati

Published: 10 March 2023

Last updated: 19 July 2025

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Journal articles on the topic "Partial drainage condition"

1

Zürn, J., L. Mugele, and H. H. Stutz. "Novel experimental method for rate-independent triaxial tests under partial drainage condition." Géotechnique Letters 14, no. 3 (2024): 1–20. http://dx.doi.org/10.1680/jgele.23.00120.

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A novel and yet simple technique for partially drained triaxial tests while preserving the assumptions of an element test is presented. The approach is based on the defined adjustment of the bulk modulus of a fluid system consisting of water and gas. Monotonic triaxial compression tests on Karlsruhe Fine Sand with different initial densities, sample preparation methods, loading rates and sample dimensions demonstrate the feasibility of the novel method. A drainage factor Df is introduced, which describes the current state of the drainage possibility. This drainage factor is subjected to change

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Nierwinski, Helena P., Marcelo Heidemann, Laura A. Lavalle, and Bruna Sell. "Study of mining tailings geotechnical parameters obtained from SCPTu tests carried on dry and saturated layers." MATEC Web of Conferences 337 (2021): 04010. http://dx.doi.org/10.1051/matecconf/202133704010.

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The correct interpretation of in situ and laboratory test results is an important step in the design of mining tailing containment structures. This study aims to analyze the Seismic Cone Penetration Test (SCPTu) results obtained into a mining tailing reservoir composed of two material layers: a thick-dry and a tick-saturated. It is possible to observe that in a same tailing reservoir, the CPTu test interpretation can lead to a classification of each layer as a different soil with specific behavior and properties. This condition demonstrates that tailings with intermediate permeability (10-5 m/

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Suprapto, Denny U., Adrian Tangkilisan, Wega Sukanto, Christha Tamburian, and Fredrik G. Langi. "Effects of Drainage Volume on Changes of Blood Acidity, and Partial Arterial Pressure of Oxygen and Carbon Dioxide in Massive Pleural Efusion." e-CliniC 10, no. 2 (2022): 330. http://dx.doi.org/10.35790/ecl.v10i2.41492.

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Abstract: Massive pleural effusion is a condition in which there is a buildup of fluid beyond normal in the pleural cavum with a volume of two-thirds of one side of the pulmonary field proven with the help of chest X-ray. Drainage of pleural effusion fluid is a management treatment for pleural effusion, but nevertheless it has complications such as pain, bleeding, pneumothorax, and pulmonary edema. Blood gas analysis is simple and essential examination in emergency medicine, which is able to provide valuable information about the acid-base status, ventilation, and oxygenation of a patient. Thi

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Liu, Jiashun, Laigui Wang, Xiangdong Zhang, Jianjun Yang, and Sijin Zhang. "Asymptotic state model of saturated low liquid-limit clay under partial drainage condition." Bulletin of Engineering Geology and the Environment 79, no. 3 (2019): 1501–8. http://dx.doi.org/10.1007/s10064-019-01642-8.

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Aggarwal, Varun, Alaa K. Mohamed, and Sameh M. Said. "Partial anomalous venous connection with intrapulmonary dual drainage: Transcatheter treatment of a rare entity." Annals of Pediatric Cardiology 16, no. 3 (2023): 229–30. http://dx.doi.org/10.4103/apc.apc_77_22.

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ABSTRACT Partial anomalous pulmonary venous return (PAPVR) is a rare congenital condition, and dual-drainage connection PAPVR to the left atrium has been reported in a few cases in the literature; in which cases, percutaneous catheterization was successfully used in lieu of surgery. We, hereby, describe a 7-month-old boy with a functional single-ventricle physiology with dual drainage of the left upper pulmonary vein to the left atrium and the innominate vein. Appropriate recognition of this entity allowed safe occlusion of the anomalous draining vein.

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Maria, Paulo E. L. S., Flávia C. M. S. Maria, and Ian S. M. Martins. "Some Applications of Linear Viscoelasticity to Problems of Consolidation under Variable Loading." Soils and Rocks 31, no. 1 (2008): 15–28. http://dx.doi.org/10.28927/sr.311015.

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The main purpose of this paper is to present a general method to derive closed form solutions for one-dimensional consolidation problems under time dependent loading using the Linear Viscoelasticity theory. A review of the basic concepts of this theory is initially presented and, mainly for illustration purposes, the method is applied to three consolidation problems, leading to relevant solutions for Geotechnical Engineering. In the first application, considering Terzaghi’s and Barron’s solutions, creep functions are determined for vertical and radial drainage, allowing derivation of expressio

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Wang, Qiang, and LiYuan Tong. "Determination Permeability Coefficient from Piezocone." Advances in Materials Science and Engineering 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/396428.

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The permeability coefficient of soil profile is one of the problems concerned by engineers, and the determination of permeability coefficient method mainly relies on the laboratory permeability test and field pumping test, but these tests are time-consuming and inefficient, and especially the permeability coefficient of soil under the condition of partial drainage was difficult to determine; in this paper, the modern digital CPTU technology was used. Dimensional permeabilityKTwas defined by using the dimensionless normalized cone tip resistanceQt, friction factorFr, and pore pressure ratioBq,

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Restrepo, M. Santiago, Osamah Aldoss, and Benton Ng. "Persistent primitive hepatic venous plexus with Scimitar syndrome: description of a case and review of the literature." Cardiology in the Young 25, no. 5 (2014): 1009–11. http://dx.doi.org/10.1017/s1047951114001498.

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AbstractPersistent primitive hepatic venous plexus is an anomaly of the systemic venous return characterised by postnatal persistence of the foetal intrahepatic venous drainage. Scimitar syndrome is a condition that consists of partial anomalous pulmonary venous return of the right pulmonary venous drainage into the systemic veins, associated with pulmonary artery hypoplasia with the underdeveloped right lung, pulmonary sequestration, and cardiac malposition. Both conditions are rare and together have been rarely described in the literature. We report the first case of this combination of lesi

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Mahar, Muneer Ahmed, Kamran Nazir Memon, Syed Feroz Shah, Azam Ali Amur, and A. M. Siddiqui. "Effect of Slip Condition on Unsteady Tank Drainage Flow of third Order Fluid." VFAST Transactions on Mathematics 10, no. 2 (2022): 189–200. http://dx.doi.org/10.21015/vtm.v10i2.1338.

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Unsteady, isothermal, and incompressible third-order fluid is considered in the tank, cylindrical coordinates are taken into account and the flow of the fluid is considered in the z-direction. The behavior of viscoelastic fluid is analyzed with slip conditions. Velocity profile, flow rate, and mathematical relation between time depth of mass and time efflux, etc. are calculated with the perturbation method. Perturbation is a suitable technique for nonlinear partial differential equations because it converts them into the linear form which is easy to solve. Different physical flow parameters ar

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Fadilah, Shofwatul, Istiarto, and Djoko Legono. "INVESTIGASI PENYEBAB GENANGAN BANJIR DI KAWASAN AEROTROPOLIS YOGYAKARTA INTERNATIONAL AIRPORT." Teknisia 28, no. 1 (2023): 13–24. http://dx.doi.org/10.20885/teknisia.vol28.iss1.art2.

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The Yogyakarta International Airport (YIA) Aerotropolis area, Kulon Progo, is in an area prone to flooding. Some areas are flooded during the rainy season, including the Carik drainage channel that flows the discharge into the Bogowonto River on the west side and the Serang River on the side of east. This paper describes the results of the investigation of flood inundation that occurred in the drainage system of the YIA Aerotropolis area to determine the causes of flood inundation. The data were collected from literature studies, observations, interviews, and documentation at the study locatio

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Dissertations / Theses on the topic "Partial drainage condition"

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Giusti, Ilaria Verfasser], and Joachim [Akademischer Betreuer] [Stahlmann. "Improvement of piezocone test interpretation for partial drainage conditions and for transitional soils / Ilaria Giusti ; Betreuer: Joachim Stahlmann." Braunschweig : Technische Universität Braunschweig, 2019. http://d-nb.info/1175894958/34.

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Giusti, Ilaria [Verfasser], and Joachim [Akademischer Betreuer] Stahlmann. "Improvement of piezocone test interpretation for partial drainage conditions and for transitional soils / Ilaria Giusti ; Betreuer: Joachim Stahlmann." Braunschweig : Technische Universität Braunschweig, 2019. http://d-nb.info/1175894958/34.

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Giusti, Ilaria. "Improvement of piezocone test interpretation for partial drainage conditions and for transitional soils." Doctoral thesis, 2017. http://hdl.handle.net/2158/1138812.

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The present study shows the results of experimental analyses of field cone penetration tests as well as calibration chamber mini-piezocone tests on soils of intermediate permeability (silts, clayey and sandy silts). The penetration rate varied across over three orders of magnitude to provide information on partially drained and undrained tip resistance, excess pore water pressure and friction sleeve. Whilst previous experimental researches essentially focused on tip resistance and pore water pressure measurements, it is worthwhile underlying that the present study is one of the first experimen

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Book chapters on the topic "Partial drainage condition"

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Yasuhara K. and Murakami S. "Effects of drainage on improving post-cyclic behaviour of non-plastic silt." In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2009. https://doi.org/10.3233/978-1-60750-031-5-171.

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The effect of drainage history on post-cyclic monotonic undrained shear behavior of non-plastic silt has been investigated using cyclic and subsequent monotonic undrained triaxial tests, following a testing procedure proposed by the authors in which cyclic loading is carried out under stress-controlled conditions and subsequent monotonic loading is conducted under strain-controlled conditions. The results of a battery of tests show that, if the silt did not experience further undrained cyclic loading, the stiffness returned to the original value after once undergoing drainage from full or partial dissipation of excess pore pressures generated during undrained cyclic loading. This characteristic differs greatly from the behavior of cohesive soils, which tend to exhibit stiffness and strength improvement. On the other hand, the post-cyclic undrained strength increased independently of the period at all stages of dissipation of excess pore pressures when drainage was allowed after undrained cyclic loading, depending only on whether liquefaction took place before drainage started. These characteristic features of post-cyclic undrained behavior of non-plastic silt resemble those of cohesive soils including plastic silts and clays, which implies that deformation of silty soil ground during and after earthquakes is more important than ground failure.

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Ceccato Francesca, Beuth Lars, and Simonini Paolo. "Study of the effect of drainage conditions on cone penetration with the Material Point Method." In Advances in Soil Mechanics and Geotechnical Engineering. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-601-9-703.

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Cone Penetration Testing (CPT) is a widely used in situ soil testing technique which allows to estimate soil stratigraphy and various soil parameters. Depending on the soil's consolidation coefficient, undrained, partially drained or drained conditions might occur. Partially drained conditions are commonly encountered in soils such as silt and sand-clay mixtures. Correlations between CPT measurements and soil properties are usually only valid for fully drained or fully undrained conditions which may lead to inaccurate estimates of the properties of silty soils. This paper aims at improving the understanding of the penetration process in different drainage conditions through advanced numerical analyses. A two-phase Material Point Method is applied to simulate the large soil deformations and the generation and dissipation of excess pore pressures that occur during penetration. The constitutive behavior of the soil is modelled with the Modified Cam Clay model. The implemented MPM formulation is validated by comparing numerical results with the results of centrifuge tests under different drainage conditions.

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Olajide Olorunnisola, Abel. "Potentials of Wood, Bamboo and Natural Fibre-Reinforced Composite Products as Substitute Materials for Fabricating Affordable Agricultural Equipment and Processing Machines in Africa." In Technology in Agriculture. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98265.

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Modern agriculture depends heavily on technology. Land clearing, irrigation, drainage, crop storage and processing all require technological input. By modernising her agriculture, through wise application of science and technology, Africa can make significant headway in economic growth. However, an agricultural technology that is too sophisticated for a particular country/region is beyond its absorptive capacity. Hence, to achieve the objectives of agricultural mechanisation in Africa, it is imperative to take into account prevailing socio-economic conditions and the level of mechanisation necessary for optimal productivity. One major constraint to agricultural mechanisation in sub-Saharan Africa is the relatively high cost of imported metallic machine and equipment fabrication materials. Taking full advantage of substitute non-metallic materials may lower the cost of production and concomitantly empower rural fabricators with limited access to electricity and welding facilities to engage in local manufacturing of sundry agricultural machines and equipment. This Chapter presents illustrative examples of full and partial substitution of metallic with non-metallic materials in the fabrication of affordable machines and equipment for agricultural production, agro-processing, irrigation and drainage, crop drying and storage. Ways of addressing identified critical challenges of technology diffusion are also discussed.

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Chen Mengjia and Wong Yiik Diew. "Investigating the packing condition of porous asphalt mixture using Discrete Element Method." In Construction Materials and Structures. IOS Press, 2014. https://doi.org/10.3233/978-1-61499-466-4-629.

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Packing condition is an important factor to asphalt mixture's capacity in carrying traffic loads and resisting deformation, which is directly dependent on aggregate gradation. Porous Asphalt Mixture (PAM), with a characteristic feature of open-graded design, is advantageous in improving drainage, lowering noise level, and generating cooling effect, making it an appropriate material for a tropical country like Singapore. However, current gradation design methods are mostly based on dense asphalt mixtures, and little research has been conducted in providing explicit and direct parameters to represent the packing condition in a mixture. In this study, six PAMs were designed and relevant parameters were obtained from both laboratory experiments and Discrete Element Method (DEM) simulation. From four types of DEM models for each PAM group, it was found that particle-to-particle interlocking among coarser particles is affected by both size and amount of finer particles. In essence, DEM simulations showed that the development of packing condition among an assembly of particles is not only related to the percentage of fines fraction, but also the proportions of particles within various size ranges, and this finding corroborated with laboratory measurements of air voids content in the PAMs. This study indicates that DEM is an effective tool in analysing the packing condition in a mixture, and the findings should be a useful guide in PAM gradation design.

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Eseller-Bayat E., Yegian M.K., Alshawabkeh A., and Gokyer S. "Prevention of liquefaction during earthquakes through Induced partial saturation in sands." In Geotechnical Engineering: New Horizons. IOS Press, 2011. https://doi.org/10.3233/978-1-60750-808-3-188.

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Liquefaction has been a significant earthquake-induced phenomenon which can cause massive damages to our infrastructures, during earthquakes. In this paper, a new liquefaction mitigation measure was introduced: &ldquo;Induced Partial Saturation (IPS)&rdquo;. This measure has a great potential to be a cost-effective and practical solution for new as well as existing structures. IPS aims to improve the resistance of liquefiable sands by introducing some amount of air/gas in the voids of the sand. The air/gas entrapped sand specimens were prepared by two techniques developed under laboratory conditions: 1) by generating oxygen and hydrogen gases through Electrolysis and 2) by assisting air entrapment in the voids by draining and reintroducing water in the fully saturated sand specimens: Drainage-Recharge (D-R). Fully and partially saturated large sand specimens were prepared in a special liquefaction box (NULB: Northeastern University Liquefaction Box) and tested under uniform cyclic simple shear strain tests performed with the use of a shaking table. The test results demonstrated that initial liquefaction was prevented in air/gas entrapped specimens and excess pore water pressures were reduced significantly. Moreover, cross-well radar measurements were performed for the detection of gas entrapped in the specimen. Through cross-well radar technique, the different electromagnetic conductivity characteristics of gas and water enabled the detection of the gas entrapped in the specimen in a non-destructive way. As another important task in this research, the long-term sustainability of entrapped air/gas in the specimens was investigated under hydrostatic, vertical upward/downward and lateral flow regimes. The results provided evidence that air/gas bubbles remain entrapped in the sand, providing evidence that Induced-Partial Saturation (IPS) holds promise for use as a sustainable liquefaction mitigation measure.

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Sadrekarimi A. and Olson S.M. "Defining the critical state line from triaxial compression and ring shear tests." In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2009. https://doi.org/10.3233/978-1-60750-031-5-36.

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The critical state (or critical void ratio) line is the locus of void ratio-effective stress conditions achieved after shearing a soil to large displacement and after all net void ratio changes and effective stress changes are complete. The triaxial compression test is commonly used to define the critical state line of sandy soils. In this study, we present drained and undrained triaxial compression and ring shear tests that are used to define the critical state line of a silty sand sampled from the Mississippi River near Cape Girardeau, Missouri, USA. All specimens were prepared by pluviating the dry sand through air. The results show that both drained and undrained (or constant volume) triaxial and ring shear tests reach critical state at similar shear displacements prior to the onset of particle damage in the ring shear tests. A unique critical state line can be defined for these states. At larger shear displacements only possible in the ring shear tests, considerable particle crushing happens and dominates the sand behavior and only after very large shear displacements (&gt;750 cm) particle crushing ceases to continue and a complete particle rearrangement is reached. At this state, the stresses and volume of the sand become constant which corresponds to the critical state of the crushed sand. A unique line can also be drawn for this state. These unique critical state lines indicate that they are not influenced by the drainage conditions and shearing modes.

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Soroush Abbas, Sasanian Sina, and Soltani Jigheh Hossein. "Mixed versus clayey soils for the core of earth dams." In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2009. https://doi.org/10.3233/978-1-60750-031-5-1506.

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There are interesting debates among the geotechnical engineers involved in the design and construction of earth dams, regarding the technical and practical advantages and disadvantages of using mixed soils (such as SC or GC) versus clayey soils (such as CL or CH) as materials for the dams core. Mixed soils are usually mixtures of clay and sand and (or) gravel. This paper presents the results of a series of numerical analyses carried out on a hypothetical earth dam with a vertical core and with two different types of materials: (i) pure clay and (ii) mixed clay. Regarding the consolidation conditions within the core during the dam construction, two types of analyses are performed: (a) fully undrained and (b) partially drained conditions. The results of the analyses show that for fully undrained analyses, excess pore water pressures developed within the core during construction are comparatively higher when the core comprises the pure clay. For the partially drained analyses, the values of excess pore water pressures in the two types of cores depend on the construction and consolidation rate. Settlements in the core consisting of the pure clay are comparatively higher if drainage of the core is impeded. When consolidation of the core is permitted, the settlements of the core comprising of the pure clay and the mixed clay are not much different. Horizontal displacement values of the core consisted of the pure clay material are higher than their corresponding values of the core consisted of the mixed clay.

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Conference papers on the topic "Partial drainage condition"

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Li, Qiang, Haitao Hu, and Y. Frank Cheng. "Prediction of Corrosion Occurrence by Simulating Multi-phased Fluid Flow in Downhole Tubulars in SAGD Production. I. Vertical and Horizontal Segments." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07888.

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Abstract Computational fluid dynamics (CFD) analysis of multi-phased fluid flow was conducted on vertical and horizontal segments of steam-assisted gravity drainage (SAGD)/ CO2 co-injection tubulars. The fraction of water volume and wall shear stress profiles were determined, and the correlation with corrosion occurrence was assessed. Results show that there is a larger likelihood for corrosion to occur on horizontal tubulars than vertical ones due to the favorable water condensation and a higher wall shear stress at the bottom of the horizontal tubular under equivalent operating conditions. A

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Case, Raymundo, Sudhakar Mahajanam, Jeremy Dunn, et al. "Evaluation of Corrosivity of Produced Fluids During SAGD Operations." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4273.

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Abstract Heavy oil extraction using steam flooding methods such as Steam Assisted Gravity Drainage (SAGD) has been used for several decades; yet no severe corrosion damage has been reported despite the presence of 35-40 mol. % CO2 and 2-3 mol. % H2S in the steam chambers. As acid gas partial pressures, pH and temperature traditionally drive corrosion control philosophies, this lack of observed corrosion was not expected. Thermodynamic modeling has been performed to obtain related pH profiles and to estimate carbon steel corrosion rates, in order to better understand the corrosive behavior exhi

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Mahmoodzadeh, Hamed, Noel Boylan, Mark Randolph, and Mark Cassidy. "The Effect of Partial Drainage on Measurements by a Piezoball Penetrometer." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-50245.

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Full-flow penetrometers such as the T-bar and ball are now widely used in offshore site investigations to measure penetration resistance and then infer the strength properties of the seabed. To provide additional data on flow properties of the soil and increase the number of parameters that can be obtained from these tests, ball penetrometers fitted with pore pressure transducers, known as piezoballs, are now being used. Depending on the soil characteristics and rate of penetration, the soil conditions during penetration may vary from undrained to fully drained. The drainage condition during p

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Bisinotto Júnior, Lúcio Mauro, Rosemar Macedo Sousa Rahal, Leonardo Ribeiro Soares, et al. "Chronic non-granulomatous mastitis with positive culture for Mycobacterium tuberculosis." In Brazilian Breast Cancer Symposium 2023. Mastology, 2023. http://dx.doi.org/10.29289/259453942023v33s1056.

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Objective: The objective of this study was to describe a case of chronic mastitis with multiple recurrences and positive culture for Mycobacterium tuberculosis. Methods: The information for this case report was obtained via a consent form, and the study was approved by the Research Ethics Committee of the Universidade Federal de Goiás HC/UFG – GO, with CAAE number: 11983719.0.0000.5078. Results: Patient N.F.R., female, 59 years old, with systemic arterial hypertension, dyslipidemia, and smoker. On July 2020, a hypoechoic, heterogeneous, lobulated mammary nodule was identified on the left, meas

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Carotenuto, P., C. Bilici, T. Lunne, et al. "Study of Partial Drainage Effects in a Natural Silty Deposit Using Variable Rate CPTU Testing." In Innovative Geotechnologies for Energy Transition. Society for Underwater Technology, 2023. http://dx.doi.org/10.3723/qowc6834.

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CPTUs carried out at standard rate (2.0 cm/sec) occur under conditions that range from fully undrained in clay to fully drained in clean sand. For intermediate soils partially drained conditions may occur which affect the CPTUs response (qt, u2) and complicate interpretation. Variable rate CPTU testing has been pursued in the last 20 years as one of the methods to investigate partial drainage. The present paper presents an extensive programme of variable rate CPTU tests carried out in the silt deposit at the Halden research site in Norway. Tests were performed at penetration rates spanning 4 o

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Gogoi, Ragini, Charles P. Aubeny, Phillip Watson, and Fraser Bransby. "Uplift Capacity of Suction Caissons in Sand for General Conditions Of Drainage." In ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/omae2021-61663.

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Abstract Suction caissons have emerged as a viable solution for the foundations of offshore wind turbines, which are gaining momentum worldwide as an alternate energy source. When used in a multi-bucket jacket system, the system capacity is often governed by the uplift capacity of the windward bucket foundation. Seabed conditions at offshore windfarm sites often comprise dense sand where the soil response may be drained, partially drained or undrained depending on the loading regime, the foundation dimensions and the soil conditions. Given the large difference in uplift capacity of caissons fo

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Huang, Shouzhi, Zhongxian Hao, Deli Jia, and Shijia Zhu. "New Electric Submersible Screw Pump in Coal-Bed Methane Drainage and Gas Production." In SPE Europe Energy Conference and Exhibition. SPE, 2025. https://doi.org/10.2118/225505-ms.

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Abstract The existing low-pressure coal seam gas well drainage methods are not suitable for inclined wells and gas migration, which affects efficient production. The well geometry structure is becoming increasingly complex, and the wear of pump rods and tubing is a prominent problem, seriously affecting production. The existing rodless pump uses an external gas-proof cover to prevent gas, but the outer diameter is too large, and there is a risk of getting stuck in the reservoir during the lowering process. So it is necessary to explore a set of efficient drainage processes suitable for low-pre

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Pocaan, Joshua, Brian Bueno, Jaica Pagaduan, et al. "Development of limestone-based passive treatment system for copper-rich acid mine drainage." In Proceedings of XVI International Mineral Processing and Recycling Conference, Belgrade, 28-30.05.2025. University of Belgrade, Technical Faculty, Bor, 2024. https://doi.org/10.5937/imprc25714p.

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This study developed a system intended to treat a copper-rich acid mine drainage (AMD) in a legacy mine in Sto. Niño, Tublay, Benguet, Philippines. Based on previous sampling campaigns in the area, Cu and Mn concentrations and pH exceed the local effluent standards. Using local limestone as the media for treatment of AMD, several laboratory experiments using synthetic AMD were conducted to identify the effective particle size and hydraulic retention time. Consequently, the parameters identified were then deployed into a pilot-scale system investigating the effectiveness of an oxic and anoxic s

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Asmatulu, R. "Design of an Air Pressure-Assisted Centrifugal Dewatering Method for Fine Particle Suspensions." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62753.

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An air pressure-assisted centrifugal dewatering unit was designed and fabricated for the dewatering of fine particles (−150 μm), such as clay, silica, and talc. The aim of this filtration unit is to increase the filtration rate during the drainage cycle and, hence produce drier filter cakes, which in turn could reduce the cost and emission problems of thermal dryers in the preparation plants. Several dewatering parameters, including applied pressure, centrifugal force (G-force), spin time, and cake thickness were tested to optimize the processing conditions. Test results showed that at higher

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Phillips, Ryan, Jin Chen, Shawn Trevor Thompson, Rajith Sudilan Dayarathne, Gerry Piercey, and John Barrett. "SIIBED: Soil Response of Dense Sand Under Rapid Inclined Loading." In Offshore Technology Conference. OTC, 2023. http://dx.doi.org/10.4043/32489-ms.

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Abstract The objective of this paper is document numerical and physical modelling carried out under the SIIBED program in order to develop, calibrate and validate a design tool for assessment of risk to subsea infrastructure due to ice keel interaction with pipelines, flexible flowlines, and electrical cables. Soil response is a key factor in the complex interaction between surface-laid flowlines, iceberg keels, and the seabed. In this study, centrifuge model tests and accompanying large-deformation finite element analyses were performed to investigate the soil behavior under various water dep

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Reports on the topic "Partial drainage condition"

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Rosse, Anine. Stream channel monitoring for Wind Cave National Park 2021 Data report. National Park Service, 2023. http://dx.doi.org/10.36967/2296623.

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The Northern Great Plains Inventory and Monitoring Network (NGPN) began stream channel monitoring in Highland Creek at Wind Cave National Park (WICA) in 2021. This data report summarizes the data collected during the 2021 season pertaining to watershed, reach, and physical habitat. After data are collected for at least four cycles, trends may be reported. This report covers three main areas: 1) Reporting on upland channel characteristics data that may affect habitat such as: land cover, drainage area, and total stream length; 2) Reporting of geomorphic dimensions such as: channel widths, bank

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