Wave Force Coefficients for Vertical Cylinders
Wave forces on small sections of vertical tubes were measured in a wave tank test. The tube sizes and the wave parameters were such that both the inertia and the drag dominated areas were...

Numerics for Common First-Passage Problem
Numerical analysis aspects of the Kolmogorov backward partial differential equation associated with the first-passage problem of the response amplitude of a lightly damped linear structure...

Potential Flow over Weirs of Moderate Curvature
A review is given of some salient studies of critical flow over round-crested weirs, in particular Lenau's extension of Matthew's results. The basic equations...

Volatilization of Organic Compounds from Streams
Mass-transfer coefficients for the volatilization of ethylene and propane were correlated with the hydraulic and geometric properties of seven streams, and predictive equations were developed....

Parametric Approach to Wave Forecasting
The prediction of wave characteristics generated by variable winds under fetch- and duration-limited conditions is considered using a parametric approach and a simplified form of the radiative...

Temperature Effects: Methane Generation from Landfill Samples
The objective of this investigation was to study the impact of temperature variations on the rate of methane generation from solid waste. The temperatures investigated ranged from 21°C...

Equal Volume Stack Sampling Methodology
An air pollution sampling methodology, involving varying point locations determined to be representative of equal annular volumes, is developed for the case of uniform flow profiles. Results...

Municipal and Industrial Water Demands of Western U.S.
Municipal water requirements are directly related to population whereas industrial demands are related to the level and type of industrial activity. The emphasis on domestic energy production...

Crack Growth in Fiber-Reinforced Materials
Engineering models for initiation of crack growth, crack arrest, and the effective fracture toughness of fiber reinforced materials are developed. Emphasis is placed on brittle matrix...

Financial Analysis under Inflation in Construction
The stated value of main items in the financial reports of a construction company does not reflect correctly under inflation their actual value. This introduces a considerable difficulty...

Control of Snow and Ice in Hokkaido, Japan
The Hokkaido Islands are marked by a cold climate despite being low in latitude; as a result, snow, ice, sea ice and freezing of ground have caused disaster in large numbers. Members of...

Vadose Zone Permeability Tests: Unsteady Flow
Saturated-unsaturated flow models are used to simulate transient conditions in four soils during constant head borehole infiltration tests in the vadose zone. Infiltration rate varies...

Thermal Fronts in Heated Water Discharges
Large scale, periodic motions known as thermal fronts, which are observed in surface, heated water discharges were investigated in a laboratory model. Characteristic length scales corresponding...

Effect of Abandoned Roles on Capacity of Wedge Bolts
Seventy, 5/8-in. diameter wedge anchors were tested in direct pull-out to determine the effect of various configurations of unused holes and different treatments of these holes on pull-out...

Bedload and Size Distribution in Paved Gravel-Bed Streams
Field data are used to study the size distribution of bedload in paved gravel-bed streams. Similarity analysis yields the results that all grain size ranges are of approximately equal...

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....

Recreational Travel: Gasoline Shortages and Price Increases
An empirical study utilizes visitation data from a number of recreational attractions in California to estimate the reduction of travel due to the gasoline price increases that occurred...

Calorific Value of Wastewater Plant Sludges
Calorific values of wastewater plant sludges are best determined using an oxygen bomb calorimeter, an apparatus which is not readily available in many plants. Using a variety of sludges...

Beams Under Lateral Projectile Impact
The influence of transverse shear effects, rotary inertia and the boundary conditions on the dynamic behavior of rigid perfectly plastic beams subjected to projectile impact at midspan...

Stochastic Model of Incipient Sediment Motion
A stochastic model of incipient sediment motion is developed. The probability of incipient motion, the life distribution of stationary particles, the number distribution of particles in...

 

 

 

 

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