scholarly journals Settlement-time behavior of peat ground and applicability of conventional predicting methods

2011 ◽  
Vol 6 (3) ◽  
pp. 395-414 ◽  
Author(s):  
Nobutaka YAMAZOE ◽  
Hiroyuki TANAKA ◽  
Hirochika HAYASHI ◽  
Toshiyuki MITACHI
Keyword(s):  
Time Behavior ◽  
Settlement Time ◽  
Predicting Methods

Settlement-Time Behavior of Steel Piles in Gypsifereous Sand- A Model Prototype Study

2013 ◽  
Vol 6 (4) ◽  
pp. 1-14
Author(s):  
Waad Abdulsattar Zakaria
Keyword(s):  
Soil Properties ◽  
Soil Improvement ◽  
Strength Properties ◽  
Time Behavior ◽  
Leaching Tests ◽  
Maximum Settlement ◽  
Pile Diameter ◽  
Gypsum Content ◽  
Bearing Load ◽  
Settlement Time

There are a lot of studies conducted on gypseous soils dealing with the effect of collapsibility on the general behavior of the soil concerning its strength properties, settlement indexes, volume-mass relationship and permeability. To get rid of the bad soil properties then one goes into another subject as dealing with the aspects of soil improvement or replacement and the like. This study is devoted to settlement investigation of a small prototype pile erected into gypsifereous soil, loaded to 70% of its ultimate bearing load, socked for two hours and then leached with water for seven days. In preparing testing soil, well graded sand is mixed with pure gypsum in ratios of gypsum content of 10, 20, 30, 50, 70%. The loading frame is locally manufactured as to apply loads and to record settlement of pile. The results revealed that when gypsum is less than 10% or 20%, settlement recorded is small. The settlement-time curves show a convetional “S” shape in a semi-log scale. Maximum settlement obtained is for gypsum content of 70% and is about 30% of pile diameter. Finally, three additional socking and leaching tests are also conducted by using 5% concentration of CH3COOH (acid), grade-60 viscosity oil, and kerosene for specimens containing 50% of gypsum. Specimen socked and leached by oil shows very little settlement, while the specimen treated with kerosene shows less settlement as compared with water. The specimen treated with 5% concentration of CH3COOH shows 50% increase in settlement.

Solving the mechanisms responsible for organelle behavior in vivo by same-cell correlative light and electron microscopy

1992 ◽  
Vol 50 (1) ◽  
pp. 14-15
Author(s):  
Conly L. Rieder
Keyword(s):  
Electron Microscopy ◽  
Quantitative Analysis ◽  
Light Microscopy ◽  
Living Cell ◽  
Light And Electron Microscopy ◽  
Time Behavior ◽  
Dynamic Interactions ◽  
Positive Identification ◽  
Cellular Components

The behavior of many cellular components, and their dynamic interactions, can be characterized in the living cell with considerable spatial and temporal resolution by video-enhanced light microscopy (video-LM). Indeed, under the appropriate conditions video-LM can be used to determine the real-time behavior of organelles ≤ 25-nm in diameter (e.g., individual microtubules—see). However, when pushed to its limit the structures and components observed within the cell by video-LM cannot be resolved nor necessarily even identified, only detected. Positive identification and a quantitative analysis often requires the corresponding electron microcopy (EM).

Screen-Time Behavior As a Predictor of Depressive Symptoms in Overweight and Obese Adolescents

2013 ◽  
Author(s):  
Marisa A. Murray ◽  
Ronald J. Sigal ◽  
Glen P. Kenny ◽  
Stasia Hadjiyannakis ◽  
Angela S. Alberga ◽  
...  
Keyword(s):  
Depressive Symptoms ◽  
Screen Time ◽  
Time Behavior ◽  
Obese Adolescents

Short time behavior and universal relations in polymer cyclization

1991 ◽  
Vol 1 (4) ◽  
pp. 471-486 ◽  
Author(s):  
Barry Friedman ◽  
Ben O'Shaughnessy
Keyword(s):  
Time Behavior ◽  
Short Time

Degenerate Diffusion Operators Arising in Population Biology (AM-185)

2017 ◽  
Author(s):  
Charles L. Epstein ◽  
Rafe Mazzeo
Keyword(s):  
Adjoint Operator ◽  
Integral Kernel ◽  
Mathematical Finance ◽  
Elliptic Operators ◽  
Complete Analysis ◽  
Time Behavior ◽  
Degenerate Elliptic Operators ◽  
Regularity Properties ◽  
Degenerate Elliptic ◽  
Mathematical Foundations

This book provides the mathematical foundations for the analysis of a class of degenerate elliptic operators defined on manifolds with corners, which arise in a variety of applications such as population genetics, mathematical finance, and economics. The results discussed in this book prove the uniqueness of the solution to the martingale problem and therefore the existence of the associated Markov process. The book uses an “integral kernel method” to develop mathematical foundations for the study of such degenerate elliptic operators and the stochastic processes they define. The precise nature of the degeneracies of the principal symbol for these operators leads to solutions of the parabolic and elliptic problems that display novel regularity properties. Dually, the adjoint operator allows for rather dramatic singularities, such as measures supported on high codimensional strata of the boundary. The book establishes the uniqueness, existence, and sharp regularity properties for solutions to the homogeneous and inhomogeneous heat equations, as well as a complete analysis of the resolvent operator acting on Hölder spaces. It shows that the semigroups defined by these operators have holomorphic extensions to the right half plane. The book also demonstrates precise asymptotic results for the long-time behavior of solutions to both the forward and backward Kolmogorov equations.

scholarly journals Quasi-stability and continuity of attractors for nonlinear system of wave equations

2021 ◽  
Vol 8 (1) ◽  
pp. 27-45
Author(s):  
M. M. Freitas ◽  
M. J. Dos Santos ◽  
A. J. A. Ramos ◽  
M. S. Vinhote ◽  
M. L. Santos
Keyword(s):  
Wave Equations ◽  
Coupled System ◽  
Global Attractors ◽  
Time Behavior ◽  
Exponential Attractors ◽  
Small Perturbations ◽  
Recent Approach ◽  
Nonlinear Coupled System ◽  
Long Time ◽  
External Forces

Abstract In this paper, we study the long-time behavior of a nonlinear coupled system of wave equations with damping terms and subjected to small perturbations of autonomous external forces. Using the recent approach by Chueshov and Lasiecka in [21], we prove that this dynamical system is quasi-stable by establishing a quasistability estimate, as consequence, the existence of global and exponential attractors is proved. Finally, we investigate the upper and lower semicontinuity of global attractors under autonomous perturbations.

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