Rx for Risk Communication
When American adults are asked what they fear most, a majority rank public speaking ahead of death, divorce and unemployment. This news may not surprise many environmental project managers,...

Evaluation Findings of the Troxler Model 4430 Water/Cement Gauge
HITEC Report 96-03-TA: Technical Appendix
This technical appendix documents the details of the work (e.g. test data, mix designs, statistical analyses)....

Budgets
Marketing budgets vary greatly from company to company. They will be much larger, when you calculate labor as a percentage of total marketing costs, for smaller firms than larger ones....

Project Quality
Quality means that you must listen to the client. You are not the last word, especially when it comes to the budget, the design fee, and the parameters of the project on which you are...

Specifying End Results
Quality of materials and workmanship directly influences the life of pavement, maintenance costs, levels of service and user costs. End result specifications (ERS) make a step towards...

ASCE Salary Survey 1995
The 23rd biennial ASCE salary survey of the civil engineering profession conducted by the ASCE Committee on Employment Conditions during the first quarter of 1995 is presented. It consists...

Designing for the First Flush
This article explains some of the details involved in separating the first flush of a storm event from the remainder of the storm. It also explains how to provide primary treatment of...

Risk of Extreme and Catastrophic Events
Assessing the extreme tails of a probability distribution, where events of very low probability can nevertheless lead to catastrophic outcomes, is one of the most widely discussed and...

Houdini: In-Tank Mobile Cleanup Robot
This paper describes design and analysis efforts to develop a new reconfigurable and collapsible working machine, dubbed Houdini, to remotely clean up hazardous-waste and petroleum storage...

The Effect of Mobile Transporter Motion on the Space Station Attitude Control System
The effect of Mobile Transport (MT) motion on Space Station stability and the performance of the Attitude Control System (ACS) using Control Momentum Gyros (CMGs) is assessed. Analysis...

Transfer Vehicle Sizing for Missions to Mars
The purpose of this study is to analyze the interactions between mission and vehicle design parameters, and determine how the selection of a particular trajectory and transit time affects...

Human Error Models for Structural Reliability
This paper presents models for human errors to be used along with reliability analyses. The models account for the occurrence of errors, their magnitude, and the detection of the errors....

Statistical Response of a Class of Hysteretic Systems
The response of a hysteretic nonlinear system subjected to a filtered white noise is considered. The method of time-dependent equivalent linearization is used and the moment equations...

A Statistical Analysis of Wind Damage to Single-Family Dwellings Due to Hurricane Hugo
The claim files of 575 policy holders of the South Carolina Windstorm and Hail Underwriting Association were analyzed to determine the nature of wind damage to single-family dwellings...

Extreme Winds Estimation by `Peaks Over Threshold' and Epochal Methods
With a view to applying the 'peaks over threshold' method to the estimation of extreme wind sped data, we perform Monte Carlo simulations for which the parameters of the population distributions...

Structural Analysis for Structural Design
This paper presents a simple extension to conventional structural analysis that serves to provide additional information that is of significant use to the structural design process. Specifically,...

Stability Analysis of Optimal Active Control Systems with Time-Delay and Other Influence Parameters
This paper presents a theoretical solution for determining the stability region of multi-story buildings equipped with one active tendon controller on a certain floor. In this theoretical...

Applications of Large Domain Hydrodynamic Models to Generate Frequency-of-Occurrence Relationships
This paper describes theory and application of the Empirical Simulation Technique (EST), a statistical procedure for simulating time sequencing and frequency-of-occurrence relationships...

Localized Sigma Coordinates for the Vertical Structure of Hydrodynamic Models
This paper analyzes the use of localized sigma coordinates in the numerical solution of the vertical structure of coastal flows. We show, through a combination of truncation error analysis...

EPA's Environmental Monitoring and Assessment Program: Availability of Broad-Scale Environmental Data and Opportunities for Use in Environmental Modeling Applications
The Environmental Monitoring and Assessment and Program (EMAP) has collected a suite of environmental data over a four year period from estuarine systems in the mid-Atlantic and Gulf of...

 

 

 

 

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