Filters: School Or College: "College of Engineering" Department: "Computing, School of" Collection: "ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 276 |
 |
Akella, Venkatesh | Testing two-phase transition signaling based self-timed circuits in a synthesis environment | The problem of testing self-timed circuits generated by an automatic synthesis system is studied. Two-phase transition signalling is assumed and the circuits are targetted for an asynchronous macromodule based implementation as in [?, ?, ?, ?]. The partitioning of the circuits into control blocks, ... | Testing; two-phase; transition signaling; self-timed circuits | 1993 |
| 277 |
 |
Reconstruction of sculptured surface using coordinate measuring machines | This paper presents a strategy for reverse engineering that uses a coordinate measur ing machine to reconstruct three dimensional sculptured surfaces. A rough initial model of the surface is generated manually. An iterative method is then used to refine the surface model until the error is within a ... | Reconstruction; Sculptured surface; Coordinate measuring machines | 1993 | |
| 278 |
 |
Gopalakrishnan, Ganesh | Peephole optimization of asynchronous networks through process composition and burst-mode machine generation | In this paper we discuss the problem of improving the e ciency of macromodule networks generated through asynchronous high level synthesis We compose the behaviors of the modules in the sub network being optimized using Dill s trace theoretic operators to get a single behavioral description for ... | Macromodule networks; Peephole; Asynchronous networks | 1993 |
| 279 |
 |
Hibler, Michael J. | Notes on thread models in Mach 3.0 | During the Mach In-Kernel Servers work, we explored two alternate thread models that could be used to support traps to in-kernel servers. In the "migrating threads" model we used, the client's thread temporarily moves into the server's task for the duration of the call. In t h e "thread switching" ... | Thread models; In-kernel servers; Thread switching; Mach 3.0 | 1993 |
| 280 |
 |
Sobh, Tarek M.; Henderson, Thomas C. | Intermediate results in active inspection and reverse engineering | In previous work [18], we have proposed a new design for inspection and reverse engineering environments. We have investigated the use of the dynamic recursive context of discrete event dynamic systems (DRFSM DEDS) to guide and control the active exploration and sensing of mechanical parts for indu... | Industrial inspection; Discrete event dynamic systems; DRFSM; DEDS | 1993 |
| 281 |
 |
Lindstrom, Gary E. | Modules as values in a persistent object store | We report on an object manager (OM) providing persistent implementations for C ++ classes. Our OM generalizes this problem to that of managing persistent modules, where the module concept is an abstract data type (ADT). This approach permits a powerful suite of module manipulation operations to be ... | Object manager; OM; Persistent object store | 1993 |
| 282 |
 |
Lindstrom, Gary E. | Modular language processors as framework completions | The conceptual and specificational power of denotational semantics for programming language design has been amply demonstrated. We report here on a language implementation method that is similarly semantically motivated, but is based upon object-oriented design principles, and results in flexible an... | Modular language processors; Denotational semantics; Framework completions | 1993 |
| 283 |
 |
Brunvand, Erik L. | Speed without fear: composable self-timed GaAs circuits | We have designed a set of self-timed gallium arsenide building blocks that are suitable for composing into larger systems. Systems designed using these modules can be easier to design and modify than their globally clocked counterparts, while maintaining high performance. The modules are suitable ... | Gallium arsenide circuits; Self-timed | 1993 |
| 284 |
 |
Hansen, Charles D. | Data distributed, parallel algorithm for ray-traced volume rendering | This paper presents a divide-and-conquer ray-traced volume rendering algorithm and a parallel image compositing method, along with their implementation and performance on the connection Machine CM-5, and networked workstations. This algorithm distributes both the data and the computations to individ... | Volume rendering; Ray tracing; ; Computer algorithms; Scientific visualization; Network computing; Massively parallel processing | 1993 |
| 285 |
 |
Brunvand, Erik L.; Gopalakrishnan, Ganesh; Hurdle, John Franklin | Reliable interface design for combining asynchronous and synchronous circuits | Abstract: In order to successfully integrate asynchronous and synchronous designs, great care must be taken at the interface between the two types of systems. Synchronizing asynchronous inputs with a free running clock can cause well-known problems with metastability in the synchronization circuits... | 1993 | |
| 286 |
 |
Gopalakrishnan, Ganesh | Peephole optimization of asynchronous networks through process composition and burst-mode machine generation | In this paper, we discuss the problem of improving the efficiency of macromodule networks generated through asynchronous high level synthesis. We compose the behaviors of the modules in the sub-network being optimized using Dill's trace-theoretic operators to get a single behavioral description for ... | Peephole optimization; Macromodule networks; Process composition; Burst-mode | 1993 |
| 287 |
 |
Sobh, Tarek M.; Henderson, Thomas C. | Concurrent engineering and robot prototyping | This report addresses the theoretical basis for building a prototyping environment for electromechanical systems using concurrent engineering approach. In Designing a robot manipulator, as an example of electro-mechanical systems, the interaction between several modules (S/W, VLSI, CAD, CAM, Robotic... | Robot prototyping | 1993 |
| 288 |
 |
Sobh, Tarek M. | Analysis of tolerance for manufacturing geometric objects from sense data | In this work we address the problem of manufacturing machine parts from sense data. Constructing geometric models for the objects from sense data is the intermediate step in a reverse engineering manufacturing system. Sensors are usually inaccurate, providing uncertain sense information. We constr... | Manufacture | 1993 |
| 289 |
 |
Gopalakrishnan, Ganesh | Some unusual micropipeline circuits | We present a few unusual Micropipelines (Sutherland, CACM, September 1989) that employ the Muller C-ELEMENT or an extension of the C-ELEMENT called LOCKC (Liebchen and Gopalakrishnan, ICCD, 1992). We first describe two variations of the two-dimensional Micropipeline structure realized using ordinary... | Micropipeline circuits; Micropipelines | 1993 |
| 290 |
 |
Bruderlin, Beat | Robust solid modeling by avoiding redundancy for manifold objects in boundary representation | This paper describes a new approach to the robustness problem in solid modeling. We identify as t h e main cause of t h e lack of robustness that interdependent topological relations are derived from approximate data. Disregarding the interdependencies very likely violates basic properties, such as... | Robust solid modeling; Manifold objects; Boundary representation; Robustness problem | 1993 |
| 291 |
 |
Sobh, Tarek M. | Active inspection and reverse engineering | We propose a new design for inspection and reverse engineering environments. In particular, we investigate the use of discrete event dynamic systems (DEDS) to guide and control the active exploration and sensing of mechanical parts for industrial inspection and reverse engineering. We introduce dyn... | Discrete event dynamic systems; DEDS; Industrial inspection | 1993 |
| 292 |
 |
Hansen, Charles D. | Data distributed, parallel algorithm for ray-traced volume rendering | This paper presents a divide-and-conquer ray-traced volume rendering algorithm and a parallel image compositing method, along with their implementation and performance on the Connection Machine CM-5, and networked workstations. This algorithm distributes both the data and the computations to individ... | Volume rendering; Ray tracing; ; Computer algorithms; Scientific visualization; Network computing; Massively parallel processing | 1993 |
| 293 |
 |
Zachary, Joseph L. | Using metaprogramming to add persistence to CLOS | The need to "open up" languages and the spread of object-oriented technology have led to object-oriented programming languages with object-oriented implementations. By encapsulating the fundamental aspects of language semantics within a set of default classes and giving the programmer the flexibilit... | metaprogramming; CLOS; Common Lisp Object System | 1993 |
| 294 |
 |
Hansen, Charles D. | Fast data parallel polygon rendering | This paper describes a data parallel method for polygon rendering on a massively parallel machine. This method, based on a simple shading model, is targeted for applications which require very fast rendering for extremely large sets of polygons. Such sets are found in many scienti c visualization ap... | 1993 | |
| 295 |
 |
Painter, James S. | Radioptimization - Goal based rendering | This paper presents a method for designing the illumination in an environment using optimization techniques applied to a radiosity based image synthesis system. An optimization of lighting parameters is performed based on user specified constraints and objectives for the illumination of t h e envir... | Radioptimization; Illumination; Optimization; Lighting parameters; Radiosity based image synthesis | 1993 |
| 296 |
 |
Lindstrom, Gary E. | A framework for module-based language processors | A system composed of interconnected modules is a module-based system. We present an object-oriented (0-0) framework for the development of processors for module-based systems, such as compilers for 0-0 languages, linkers/loaders, and tools for user/system libraries. We claim t h a t this framework,... | Language processors; Jigsaw; Module-based | 1993 |
| 297 |
 |
Michell, Nick | PPL 1.2mu gallium arsenide cell set | The purpose of this note is to describe the 1.2/i gallium arsenide PPL cell set - not only what is included, but design decisions made along the way. The first section is an overview of the Umitations imposed by the use of gallium arsenide technology, the next section describes the trade-offs in des... | Gallium arsenide cells; PPL cell set | 1993 |
| 298 |
 |
Zachary, Joseph L. | Reflections on metaprogramming | The spread of object-oriented technology has led to object-oriented programming languages with object-oriented implementations. By encapsulating part of t h e semantics of a language within a set of default classes and empowering the programmer to derive new versions of these base classes, a designe... | Metaprogramming | 1993 |
| 299 |
 |
Lepreau, Jay | DRAFT: work in progress - - - comments solicited evolving Mach 3.0 to use migrating threads | Like most operating systems, Mach 3.0 views threads as statically associated with a single task. An alternative model is that of migrating threads, in which a single thread abstraction moves between tasks with the logical flow of control, and "server" code is passively executed. We have compatibly r... | DRAFT | 1993 |
| 300 |
 |
Gopalakrishnan, Ganesh | A transformational approach to asynchronous high-level synthesis | Asynchronous high-level synthesis is aimed at transforming high level descriptions of algorithms into efficient asynchronous circuit implementations. This approach is attractive from the point of view of the flexibility it affords in performing high level program transformations on users' initial d... | High level synthesis tool; SHILPA | 1993 |