Your Numerical Model Begins at the Site Investigation � Phase Improving the Suitability of Numerical Geotechnical Modeling
The success of an advanced geotechnical numerical analysis depends foremost on a thorough geologic and geotechnical understanding of the site, and thus the geometric definition and adequacy of input parameters...
Initial Criteria
Microtunneling is appropriate for a wide range of conditions. Careful evaluation of certain parameters will determine the applicability and constructability of a potential microtunneling...
A Solution for Wind-Induced Vortex-Shedding Vibration of the Harmony and Heritage Platforms During Transpacific Tow
This paper describes the results of an advanced procedure for analyzing wind-induced vortex-shedding vibration (VSV) which was used for the transpacific tows of the Harmony and Heritage...
Maximum Weighted Log-Likelihood Estimation for Parameterization Selection Uncertainty
Hydraulic conductivity identification remains a challenging inverse problem in groundwater modeling because of inherent non-uniqueness and lack of flexibility in parameterization methods....
Monitoring and Quantifying Rate-Limited Mass Transfer Using Geoelectrical Measurements
Non-Fickian solute-transport behavior has been observed at research and aquifer remediationsites in diverse geologic settings. Anomalous behavior such as concentration rebound, long breakthrough...
Application of TOPNET in the Distributed Model Intercomparison Project (DMIP)
This paper describes the application of a networked version of TOPMODEL, TOPNET, as part of the Distributed Model Intercomparison Project, DMIP. The model implementation is based on a...
Review of Bridge Performance and Its Parameters
This section contains a review of bridge performance and its parameters. Topics include definition of lifetime performance and kinds of functioning for bridge performance....
Bayesian Approach to Support Design of a Groundwater Long Term Monitoring Plan
This paper discusses a retrospective data assimilation approach that allows one to examine the spatial and temporal differences between forecast and observed states. Their stability, or...
Changing Channels
When the strict design parameters of a correctional facility in remote Pennsylvania meant blocking a headwater stream, a team of environmental engineers rerouted the waterway 400 ft (122...
The Watershed Modeling System
The Watershed Modeling System (WMS) is a comprehensive environment for hydrologic analysis developed by the Environmental Modeling Research Laboratory (EMRL) at Brigham Young University...
New Parameters to Model Ground Motions
The paper presents three new parameters to characterize earthquake-induced ground motions. All three parameters evolve from the concept of response spectra, and are termed 3D response...
Robust Techniques for Extension of Streamflow Records
Longer hydrological records are required for the planning of water resource systems. Sensitivity of a system is studied under various scenarios of hydrological inputs to understand its...
High-Tech Text
ASCE is involved in two high-tech initiatives that will bring information to engineers in new ways. An interactive textbook for fluid mechanics courses incorporates many advanced visual...
Not Your Father's Strain Gauge
A new type of strain gauge incorporates smart memory methods to assess changes in structures. Inexpensive, easy to install and durable, these gauges are passive peak strain sensors, which...
Potential Microbial Impacts on Groundwater Quality
Over the last decade there has been significant progress in the understanding of sub-surface microbiology. The ubiquity of microorganisms within groundwaters forms a major part of these...
Distributed Parameter Hydrologic Modeling and NEXRAD for River Forecasting: Scale Issues Facing the National Weather Service
With the advent of NEXRAD (Next Generation RADar), the National Weather Service has the opportunity to move from current lumped parameter modeling to more of a distributed parameter hydrologic...
FLODRO 2.0: A User Friendly Personal Computer Package for Flood and Drought Frequency Analyses
The use of personal computers have changed dramatically the way to perform several studies related with hydrological problems. The increased capabilities of the current generation of personal...
Rational Design and Operation of Packed Bed Adsorption Reactors
Design of packed bed adsorption reactors is based presently upon the parameter empty bed contact time (EBCT), a fallacious concept. The column wave front behavior, instead, should be the...
Production of Nitrous Oxide Gas under Sequencing Batch Reactor System
N2O, like CO2, H2O, and CH6,...
Genetic Algorithms for the Design of Groundwater Remediation Systems
The performance of genetic algorithms (GAs) to solve optimal aquifer remediation design problems is investigated. Some difficulties associated with GA models include premature convergence,...
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