Torsion of Hollow Circular Cylinders with Creep
An exact analysis is presented for the load-deformational behavior of twisting of hollow circular cylinders made of materials that creep. The hyperbolic sine law is used. Curves which...

Calculation of Trapped Reflective Wave
An increase in reflected wave energy may result where structures are built along a section of coastline with no beach fronting the structure. In certain instances the structures may combine...

Thermal Front Formation from Buoyant Surface Jets
An explanation is given for the formation of thermal fronts for outfall Froude numbers in the range of F≤ 3.3. It is shown that the homogeneous round jet has a characteristic natural frequency...

Plane Curved Beam Equations
It is demonstrated that plane curved beam (rectangular cross-section) equilibrium equations can be obtained by reducing the established equations for thin shells. The necessary equations...

Optimum Membrane Trough
A fluid is contained in an inextensible membrane trough. Due to hydrostatics the shape of the trough is governed by a set of nonlinear differential equations which is solved by perturbations...

Infiltration Formulas by Curve Number Procedure
The Soil Conservation Service (SCS) curve number procedure for estimating runoff volume is examined in terms of the validity and applicability of the derived infiltration equations. Two...

Estimates of Design Wind from Short Records
Wind speeds of various average return periods are estimated from the series of hourly mean wind speeds assumed independent. This hypothesis of independence is suggested by characteristics...

Remedial Treatment Exploration, Wolf Creek Dam, Ky.
After 15 years of apparently satisfactory operation, Wolf Creek Dam developed underseepage and piping problems associated with its karstic foundation. When a sinkhole developed at the...

Distributed Model for Small Semiarid Watersheds
A distributed model for estimation of runoff volumes and peak rates of flow from small semiarid watersheds is shown to produce reasonable estimates for mean runoff and flood frequency...

Water Resources in Developing Countries
Most of the nations of the world are concerned with providing water to as many people as possible during the Decade of the 1980's, (The International Drinking Water and Sanitation...

Year-End Report and Valedictory Address
As out-going President of the American Society of Civil Engineers, Joseph Ward reports on the accomplishments of his administration and enumerates the issues that still need to be addressed...

Thermal Convection and Design Wind Speeds
This technical note presents estimates of the extent to which thermal convection effects cause mean wind profiles to deviate from the logarithmic law. It is shown that the deviations from...

Probabilistic Description of Hurricane Wind Speeds
Information is presented on the parameters of the best fitting Weibull distribution estimated for simulated hurricane windspeeds. The effect of the assumption that an Extreme Type I distribution,...

Multiport Diffusers for Heat Disposal: A Summary
This paper reviews the fluid mechanical characteristics - as derived from theoretical and experimental studies during the past dozen years - of submerged multiport diffusers used for heat...

Management Communications: Project Manager—Down
Effective communication between the manager of an engineering project and those assigned to the project team is essential to the successful completion of a project. The project manager...

Defects in Public Building Construction
From 1978 - 1980, The Special Commission concerning State and County Buildings in the Commonwealth of Massachusetts made a thorough investigation of maladministration and corruption in...

Preparing U.S. Employees for Overseas Assignments
Local bureaucracy, our governments' bureaucracy, and just plain lack of convenience cause overseas employees to be far less productive than in the United States. Yet, they...

Communicating Projects Costs to Staff
The need for more effective management of engineering, architectural, and planning organizations is becoming increasingly acute as our society becomes more sophisticated and complex. Part...

Professional Schools: The Debate Continues
The development of a strong unified profession of engineering should start with a careful restructuring of our educational units. Engineering education is in a state of disarray and cannot...

Iowa's Mandatory Continuing Education Law
Since July 12, 1977 Iowa has had a law requiring continuing education as a condition of license renewal for professional engineers and land surveyors. The requirements and the results...

 

 

 

 

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