Computer-Assisted Coal Mining ? An Overview
The U.S. Bureau of Mines was created to conduct research to improve the health, safety, and efficiency of the coal and metal mining industries. In 1986, the Bureau embarked on a new, major...
A Real-Time Control Network for Robotic Mining
The application of computers and computer networks to coal mining machines is one approach the U.S. Bureau of mines is pursuing to enhance safety for the coal miner while at the same time...
Damage Tolerance of Thin Composite Reinforced Membrane Structures
Structural performance of fiber reinforced flexible composite membranes, designed as pressurized shelters for space exploration, is investigated via computational simulation. An integrated...
Optical Scatter From a Space Craft Mirror Due to Microscopic Impacts
This article addresses the issue of how micrometeoroid and man made debris in the space environment can adversely change the optical resolution of a mirror. The study used an algorithm...
Surface Payload Unloading and Deployment Options for a Lunar Return Mission
While planetary exploration studies have focuses on many areas that are critical to mission success, such as landing space transportation vehicles on other planets, a preferred method...
Efficient Path Planning Strategies for Unmanned Rover Vehicles
Path planning strategies are studied using an optimization model. Four main sub-models are discussed that contribute to the computing of minimum energy vehicle path planning. These are:...
Onboard Image Processing With Transputers
A transputer based onboard computer for planetary vehicles is being designed in the KFKI Research Institute for Particle and Nuclear Physics (RMKI), Budapest, Hungary. In this paper we...
An Inflatable Antenna for Space-Based Low-Frequency Radio Astronomy
Antennas for a low-frequency orbiting radio telescope must have minimal problems in deployment, a directional beam, and a wide-angle scanning capability. Inflatable antennas with deposited...
Engineering R&D Strategy
Accurate data on the levels and focus of U.S. civil engineering-related R&D are important to establish a benchmark from which a knowledge base can be constructed; to highlight...
Bridge Rail Impact Forcing Functions
Bridge rails are designed according to AASHTO standards with a static 10-kip (44.5 kN) lateral load. The computer programs BARRIER VII and COSMOS are used to determine the deflections...
Representation and Processing of Design Standards: a Bifurcation between Research and Practice
There have been attempts to develop representations of design standards and procedures for computing representations of the design standard on which computations are based. However, within...
Towards Structural Strength and Safety Evaluation Within Bridge Management Systems
Bridge management systems being implemented by transportation departments in the United States are limited in their ability to consider structural strength and safety when preparing recommendations...
Historical Considerations for New Jersey Viaduct
An Historical Bridge Alternatives Analysis report prepared for New Jersey Department of Transportation (NJDOT) for Route 1&9 S.B. viaduct in Newark, New Jersey evaluated the options...
A Multimedia Learning Environment for Statics
A multimedia learning environment (MLE) is being developed in the area of statics within the framework of SUCCEED's Curriculum 21. An overview is presented which includes: discussions...
Multimedia Technology and Structural Steel Design
A project is underway at The Pennsylvania State University to produce Steel Design Educational Module (SteelDEM) software. This intelligent tutor and teaching aid utilizes the state-of-the-art...
A New Laboratory for Teaching Structural Engineering
A new, practical, computer-assisted laboratory, 'AN/EX,' has been developed for teaching structural engineering. Specifically, AN/EX has been developed to encourage cross-verification...
COAST Educational Program for Teaching Structural Analysis
The paper presents a computer program designed as a teaching aid for structural analysis and finite element courses. The main objective of the program is to illustrate major steps and...
Hurricane Windspeeds at Inland Locations
A critical review of the windfield and filling models used in the hurricane simulation procedure of Batts et al. [1980] clearly indicates that the hurricane windspeeds they obtained for...
A Study of Jointless Bridge Behavior
The pressing need for maintenance free and low construction cost bridges, has increased the interest and activity in building integral or jointless bridges. The investigation of the behavior...
Dynamic Model for Analysis of Concrete Pavements
A new dynamic finite-element computer program, DYNA-SLAB, for the analysis of jointed concrete pavements subjected to moving transient loads is presented. The structural model for the...
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