Hydraulic Regime and Activated Sludge Performance
The standard bio-kinetic theory used to describe the activated sludge process predicts that the soluble organic matter (SOM) concentration in the effluent of plug flow aeration tanks will...

One Uses His Umbrella When It Rains
The engineering profession unity movement is reviewed, with a brief explanation of the reasons for forming the American Association of Engineering Societies. A brief historical background...

Simplified Earthquake Analysis of Suspension Bridge Towers
Free vibration and earthquake response analyses of a simplified continuous analytical model representing suspension bridge towers (fixed at the base) are presented. In addition, various...

Suspension Bridge Response to Multiple-Support Excitations
The earthquake-induced vertical response of suspension bridges when subjected to, correlated or uncorrelated, multiple-support excitations is analyzed by means of random vibration theory....

Schwarz-Christoffel Theory of Flow Past an Opening
The Schwarz-Christoffel transformation for a steady two-dimensional plane flow past an eccentric, normal constriction of zero thickness is formulated. The transformation formula contains...

Simplified Bending Theory for Wire Rope
A theory has been developed to predict the static response of wire rope subjected to tension, torsion and bending. This type of loading occurs frequently in ropes wrapped around sheaves....

Response of MDOF Systems to Vector Random Excitation
A model time history random vibration analysis is presented. The random excitation is nonwhite, nonstationary, vector-valued and correlated. Excitation components may have different frequency...

Frictional Slip in Elasticity: An Example
In order to study various aspects of propagating slip zones with friction, the unbounded solid with a semi-infinite cut are considered. The solid is first compressed in a direction normal...

Sandwich Bean-Columns with Interlayer Slips
Elasticity solution for sandwich beam-columns bonded with non-rigid adhesives is presented. The solution satisfies the equilibrium equations of the face and core elements, the compatibility...

Analytic Solution for Continuous Sandwich Plates
An analytical solution is presented for simply supported continuous sandwich plate over two spans and subjected to transverse loads. The process involves utilizing the force method in...

Boundary Element Analysis of Fluid Domain
The boundary element method of analysis is applied to the calculation of hydrodynamic pressures in a reservoir impounded by a gravity dam and subjected to a harmonic ground motion., It...

Vertical Seismic Load Effect on Building Response
An analytical procedure is presented for the calculation of the statistical properties of the response of a linear elastic tall building under earthquake excitations. The emphasis is placed...

Probability of Survival in a Blast Environment
The probability of survival of people located in personnel shelters when subjected to the blast effects produced by the detonation of a 1-MT weapon near the ground surface is studied....

Exact Involute Bodies of Revolution
Involute construction is an approach used in contemporary rocket nozzle technology for the fabrication of exit cones and other bodies of revolution and consists of laminating identical...

Vertical Seismic Load Effect on Hysteric Columns
An analytical method is developed to calculate the statistical properties of the response of hysteretic columns under earthquake excitations, with special emphasis on the effect of the...

Nonuniform Laminar Free-Surface Flow
Industrial flow processes involving molten substances or other highly viscous liquids frequently make use of conveyance by open channels. A one-dimensional analysis is undertaken of laminar...

Initial Conditions and Korteweg-de Vries Solitons
A study is made of the asymptotic waveforms described by the Korteweg-de Vries equation (ut + 6uux = uxxx...

Residual Undrained Deformation from Cyclic Loading
Residual undrained deformation of anisotropically consolidated soil samples under cyclic loading is investigated. The magnitude of residual deformation is influenced by factors such as...

Seismic Response of End Bearing Piles
A very simple analysis of dynamic soil-pile-supported mass interaction is presented as an aid to understanding pile foundations behaviour during earthquakes. The equilibrium equations...

Stresses and Displacements in Cross-Anisotropic Soils
An analytic investigation is presented on the effect of soil cross-anistropy on surface displacements and stress distributions in a homogeneous thick soil deposit (halfspace) subjected...

 

 

 

 

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