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RISGround Movements around Corners of Excavations: Empirical Calculation Method
Publisher: American Society of Civil Engineers
Abstract: This paper presents an empirical methodology that allows calculation of ground displacements behind corners of retained cut excavations. The increased stiffness of a retaining wall at the corner of an excavation normally ...
Laboratory Study of a Steam Turbine Rotor Weld Repair
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In 1986, a large utility discovered a crack in its IP/LP steam turbine rotor and weld repair was chosen as the most cost-effective alternative. The repair consisted of severing the rotor ...
Methodology for Analyzing Dissolved Oxygen Consumption in Benthic Chambers
Publisher: American Society of Civil Engineers
Abstract: Dissolved oxygen (DO) consumption in the sediments of natural aquatic ecosystems occurs by mass flux across the water-sediment interface. This mass flux is determined as either the rate of oxygen consumption in the sediment ...
An Approach for Determination of Basic Machine Tool Settings From Blank Data in Face Hobbed and Face Milled Hypoid Gears
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The conditions of meshing and contact in hypoid gear drives depend substantially on the machinetool settings to be applied. Determination of gear geometry is the first step in the design process of a hypoid gear drive. An ...
The Earliest Documented Tornado in the Americas
Publisher: American Meteorological Society
Abstract: This paper discusses a meteorological phenomenon that occurred in the Basin of Mexico in August 1521. The only known description appears in Book XII of the Florentine Codex, which is an account of the Spanish conquest of ...
Geometric Design, Meshing Simulation, and Stress Analysis of Pure Rolling Rack and Pinion Mechanisms
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The geometric design, meshing simulation, and stress analysis of pure rolling rack and pinion mechanisms are presented. Both the pinion and the rack are based on the active design of the meshing line to provide pure rolling ...
Resistance to Flow in Steep Rough Streams
Publisher: American Society of Civil Engineers
Abstract: A theory of resistance to flow in steep, rough streams is developed that takes into account the existence of a highly turbulent wake zone near the bed of a very rough boundary. Two zones are identified in the flow field. ...
Eye Excess Energy and the Rapid Intensification of Hurricane Lili (2002)
Publisher: American Meteorological Society
Abstract: Over 4.5 days, NOAA and U.S. Air Force personnel in reconnaissance aircraft deployed 44 global positioning system dropwindsondes (GPS sondes) in the eye of Hurricane Lili (2002). The vertical profiles derived from these ...
The Conservative Random Choice Method for the Numerical Solution of the Advection Equation
Publisher: American Meteorological Society
Abstract: A version of the random choice method (RCM), which we call the conservative random choice method (CRCM), is introduced to solve the variable coefficient linear advection equation. CRCM is an advection scheme that does not ...
Uncertainties in Isoprene Emissions from a Mixed Deciduous Forest Estimated Using a Canopy Microclimate Model
Publisher: American Meteorological Society
Abstract: Utilizing the concepts of localized near-field diffusion, a modeling system was developed to estimate isoprene emissions from foliage of a mixed deciduous forest. The model determined radiation disposition and foliage ...