Ronald D. Kriz

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We present DIVERSE, a highly modular collection of complimentary software packages designed to facilitate the creation of device independent virtual environments. DIVERSE is free/open source software, containing both end-user programs and C++ APIs (Application Programming Interfaces). DgiPf is the DIVERSE graphics interface to OpenGL Performer™. A program(More)
We describe the development of modules for teaching a senior level course, Mechanical Behavior of Materials, that incorporate the results of state of the art simulation techniques. The modules are Web-Java based and make extensive use of materials available through the Internet. The most important characteristic of these modules is that they teach the(More)
High cohesion, or module strength, indicates that a system has been well partitioned into components which have strong internal relationships. An understanding of cohesion is an important factor in software design. However, cohesion is difficult to define precisely and to quantify, particularly for object oriented (OO) software, and attempts to develop(More)
The goal of this thesis is to present the virtual environments research community with a thorough investigation of collaborative awareness in Tele-immersion and related immersive virtual environments. Tele-immersion was originally defined in 1996 by Tom Defanti of the Electronic Visualization Laboratory (EVL), is "the union of networked VR and video in the(More)
In this paper we describe a flexible environment that combines scientific data mining with parallel computing in an immersive visualization environment. The goal is to minimize the time between the generation of a scientific hypothesis and the test of that idea, or science at the speed of thought.
The advent of high performance computers (HPC) has allowed materials researchers to model large three-dimensional (3D) nanostructures. Properties associated with these 3D structures can be sufficiently complex where researchers can benefit from immersive virtual environments (VEs) in their analysis and interpretation of HPC model results. Because immersive(More)
Research on the development of virtual environments has been limited to date to universities due to the high cost of equipment and high-speed internet access. Applications of virtual environments using CAVE technology are numerous in medicine, architecture, military weapons systems, medicine, science research and business training. However, the cost of this(More)
Linear vibration absorbers are a valuable tool used to suppress vibrations due to harmonic excitation in structural systems. Limited evaluation of the performance of nonlinear vibration absorbers for nonlinear structures exists in the current literature. The state of the art is extended in this work to vibration absorbers in their three major physical(More)