Numerical modeling for preliminary assessment of natural remediation of phosphorus in variably saturated soil in a peri-urban settlement in Kampala, Uganda

2011 ◽  
pp. 295-317
Keyword(s):  
Numerical Modeling ◽  
Saturated Soil ◽  
Preliminary Assessment ◽  
Urban Settlement ◽  
Natural Remediation

Numerical Modeling of Time-Dependent Thermally Induced Excess Pore Fluid Pressures in a Saturated Soil

2020 ◽  
Vol 146 (4) ◽  
pp. 04020007 ◽  
Author(s):  
Wenjie Cui ◽  
Aikaterini Tsiampousi ◽  
David M. Potts ◽  
Klementyna A. Gawecka ◽  
Lidija Zdravković
Keyword(s):  
Numerical Modeling ◽  
Pore Fluid ◽  
Saturated Soil ◽  
Time Dependent ◽  
Thermally Induced ◽  
Excess Pore

scholarly journals Numerical Modeling of Nonlinear Response of Seafloor Porous Saturated Soil Deposits to SH-Wave Propagation

2021 ◽  
Vol 11 (4) ◽  
pp. 1854
Author(s):  
Artem A. Krylov ◽  
Dmitry A. Alekseev ◽  
Sergey A. Kovachev ◽  
Elena A. Radiuk ◽  
Mikhail A. Novikov
Keyword(s):  
Porous Medium ◽  
Numerical Modeling ◽  
Wave Propagation ◽  
Seismic Response ◽  
Soil Layer ◽  
Saturated Soil ◽  
Significant Feature ◽  
Cohesive Soils ◽  
Sh Wave ◽  
Soil Deposits

Numerical modeling of seismic response of soil deposits is usually conducted as part of seismic hazard assessment, preceding facility construction in any tectonically active regions, including offshore sites. A significant feature of subsea soils is their porous and water-saturated structure. Thus, the purpose of the present study is to introduce a procedure for modeling nonlinear behavior of porous, moist soils during SH-wave propagation, to verify it and compare response for synthetic soil profiles with porous medium parameters specific for low moisture onshore and high moisture offshore sites with cohesive and non-cohesive soils. The well-known and approved NERA code was used as a basis and improved to incorporate the Biot and Gassman equations for elastic waves propagation in a fluid-saturated porous solid. The applicability of the presented approach was substantiated for integration into other well-known algorithms. Obtained results showed good agreement between the simulated by different methods and observed spectra. The modeling also showed that the response of cohesive and non-cohesive soils with moisture specific both for onshore and offshore sites is explained by effects of resonances and effect of seismic amplitude saturation, which, in turn, depend on the corresponding value of the layer thickness and S-wave impedance for porous saturated soil layer. The proposed scheme could have significant practical usage for studying the effect of porous medium parameters on the seismic response of the moist soil deposits.

Procedure for Maximizing Phonological Information from Single-Word Responses

1984 ◽  
Vol 15 (4) ◽  
pp. 267-274 ◽  
Author(s):  
Harriet B. Klein
Keyword(s):  
Phonological Information ◽  
Single Word ◽  
Preliminary Assessment ◽  
Target Attainment ◽  
Phonological Processes ◽  
Step Procedure ◽  
Yield Information ◽  
Assessment Measure ◽  
Busy Clinician ◽  
Planning Intervention

Formal articulation test responses are often used by the busy clinician as a basis for planning intervention goals. This article describes a 6-step procedure for using efficiently the single-word responses elicited with an articulation test. This procedure involves the assessment of all consonants within a word rather than only test-target consonants. Responses are organized within a Model and Replica chart to yield information about an individual's (a) articulation ability, (b) frequency of target attainment, substitutions, and deletions, (c) variability in production, and (d) phonological processes. This procedure is recommended as a preliminary assessment measure. It is advised that more detailed analysis of continuous speech be undertaken in conjunction with early treatment sessions.

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