Now showing items 11-20 of 52
Modeling of Shock Propagation and Attenuation in Viscoelastic Components
Protection from the potentially damaging effects of shock loading is a common design requirement for diverse mechanical structures ranging from shock accelerometers to spacecraft. High damping viscoelastic materials are ...
Active Vibration Isolation Using an Induced Strain Actuator with Application to Automotive Seat Suspensions
Active vibration isolation of automotive seats requires actuators that achieve millimeter-range displacements and forces on the order of 300 N. Recent developments in piezoceramic actuator technology provide a means for ...
Experimental Investigation of the Multiple Row Extended 1/2 End-Plate Moment Connection
End-plate moment connections are widely used by the low-rise metal building industry to provide the rigid connections necessary in gable frames. There are numerous end-plate moment connection configurations. The multiple ...
Building Interoperable Digital Libraries: A Practical Guide to Creating Open Archives
This presentation discusses the development of the Open Archives Initiative (OAI), metadata harvesting, digital library interoperability, the National Digital Library of Theses and Dissertations (NDLTD), and more.
Opening Remarks and Historical Overview
This presentation introduces the Open Archives Initiative (OAI) and discusses the OAI philosophy, repository perspective, and the future of open archiving.
There is no way to determine all the sets that an identifier belongs to. This is typically referred to as set orthogonality because the protocol allows a harvester to find out which identifiers belong to a particular set ...
Testbed evaluation of virtual environment interaction techniques
(MIT Press, 2001-02-01)
As immersive virtual environment (VE) applications become more complex, it is clear that we need a firm understanding of the principles of VE interaction. In particular, designers need guidance in choosing three-dimensional ...
An introduction to 3-d user interface design
(MIT Press, 2001-02-01)
Three-dimensional user interface design is a critical component of any virtual environment (VE) application. In this paper, we present a broad overview of 3-D interaction and user interfaces. We discuss the effect of common ...
A Classification of Interactive Map Software
(Department of Computer Science, Virginia Polytechnic Institute & State University, 2001), TR-01-26
Map software programs can be different in a number of ways. This paper reports on the classification of interactivity produced as a result of surveying forty map applications. Specific examples from the survey are referenced ...
Design and Evaluation of Menu Systems for Immersive Virtual Environments
(Department of Computer Science, Virginia Polytechnic Institute & State University, 2001), TR-01-20
Interfaces for system control tasks in virtual environments (VEs) have not been extensively studied. This paper focuses on various types of menu systems to be used in such environments. We describe the design of the TULIP ...