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Creator | Title | Description | Subject | Date |
| 451 |
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Cohen, Elaine | Constant scallop height tool path generation | An approach for the automatic generation of constant scallop height tool paths is presented. An example is shown generated from a B-spline model, although it can be used with many types of sculptured surfaces. The approach utilizes surface subdivision techniques and a new algorithm for tool path gen... | Scallop height; Tool path generation; B-spline model | 1989 |
| 452 |
 |
Hansen, Charles D. | Constrained inverse volume rendering for planetary nebulae | Determining the three-dimensional structure of distant astronomical objects is a challenging task, given that terrestrial observations provide only one viewpoint. For this task, bipolar planetary nebulae are interesting objects of study because of their pronounced axial symmetry due to fundamental p... | Volume rendering; Axial symmetry | 2004 |
| 453 |
 |
Nelson, Donald | Constraint Jacobians for constant-time inverse kinematics and assembly optimization | An algorithm for the constant-time solution of systems of geometric constraint equations is presented in this work. constraint equations and their Jacobians may be used in conjunction with other numerical methods to solve for a variety of kinematics, dynamics, and assembly optimization problems. The... | Constant-time; Inverse kinematics; Constraint Jacobians | 1998 |
| 454 |
 |
Bruderlin, Beat | Constraint objects - integrating constraint definition and interaction | This paper describes the implementation of a new constraint-based technique for direct manipulation in interactive CAD, which will simplify the design process, especially in the early stages. We introduce so called Constraint Objects and Parameter Objects which constitute an object-oriented view on ... | Constraint objects; Parameter objects | 1992 |
| 455 |
 |
Bruderlin, Beat | Constraint objects - integrating constraint definition and interaction | This paper describes the implementation of a new constraint-based technique for direct manipulation in interactive CAD. We introduce so called Constraint Objects and Parameter Objects which constitute an object-oriented view on constraints. A graph algorithm is employed to analyze the relative degr... | Constraint objects | 1993 |
| 456 |
 |
Bruderlin, Beat | Constraint objects ? integrating constraint definition and graphical interaction | This paper describes the implementation of a new constraint??based tech?? nique for direct manipulation in interactive CAD which will simplify the design process especially in the early stages We introduce so called Constraint Objects and Parameter Objects which constitute an object??oriented ... | Constraint objects | 1992 |
| 457 |
 |
Hansen, Charles D.; Johnson, Christopher R. | Constraint-based technique for haptic volume exploration | We present a haptic rendering technique that uses directional constraints to facilitate enhanced exploration modes for volumetric datasets. The algorithm restricts user motion in certain directions by incrementally moving a proxy point along the axes of a local reference frame. Reaction forces are g... | Haptic rendering; Immersive visualization; Human-computer interaction | 2003 |
| 458 |
 |
Johnson, Christopher R. | Construction of a human torso model from magnetic resonance images for problems in computational electrocardiography | Applying mathematical models to real situations often requires the use of discrete geometrical models of the solution domain. In some cases destructive measurement of the objects under examination is acceptable, but in biomedical applications the measurements come from imaging techniques such as X-r... | Human torso model; MRI | 1994 |
| 459 |
 |
Stringfellow, Gerald B. | Control and characterization of ordering in GaInP | Gae,,In,,P layers have been grown by organometallic vapor phase epitaxy on GaAs substrates with [llO]-oriented grooves on the surface that have an important effect on the formation of Cu-Pt ordered structures during growth. In this work, the groove shape is demonstrated to be critically important... | Vapor phase epitaxy; Ordered structure; Cathodoluminescence spectroscopy | 1993-06-28 |
| 460 |
 |
Horch, Kenneth W. | Control of ankle position using neural feedback | This paper describes a closed loop control system that uses afferent neural activity from muscle spindle fibers as feedback for controlling ankle position. The gastrocnemius muscle was stimulated through a dual channel intrafascicular electrode implanted in a fascicle of the tibial nerve. Dual cha... | Neuromuscular stimulation; Peripheral nerve; Joint angle | 1994 |
| 461 |
 |
Pershing, David W. | Control of NOx and particulate emissions from spreader-stokers fired with hogged wood | The formation and emission of nitrogen oxides and particulate carry-over were studied from spreader-stoker combustion of hogged Douglas-fir, with a focus on optimizing the combustion conditions in each of the two distinct combustion zones, the bed phase and the suspension phase local oxygen availabi... | Chemical analysis; Combustion; Emission; Engineering; Environmental control; Fuels; Nitrogen compounds; Particulates; NOx; Hogged wood | 1987 |
| 462 |
 |
Pershing, David W. | Control of NOx emissions | NITROGEN OXIDES (NOX) are produced in combustion from molecular nitrogen (thermal NOx) or from oxidation of nitrogen contained in the fuel (fuel NOx). Production of NOx in a turbulent diffusion flame is largely dependent upon fuel composition and fuel/air contacting, which for liquid fuels is determ... | Staged heat release; Tunnel furnace; Boiler simulator; Staged combustion | 1980 |
| 463 |
 |
Stringfellow, Gerald B. | Control of ordering in Ga0.5In0.5P using growth temperature | The kinetic processes leading to ordering in Gas,, In o.4P8 have been studied by observing the effects of substrate misorientation (O-9), growth rate (0.1-0.5), and substrate temperature (570- 670 "C) during growth. The ordered structure and degree of ordering are determined using transmission elec... | Ordering Structure; Growth Temprature; Growth Rate | 1994 |
| 464 |
 |
Riloff, Ellen M. | Conundrums in noun phrase coreference resolution: making sense of the state-of-the-art | We aim to shed light on the state-of-the-art in NP coreference resolution by teasing apart the differences in the MUC and ACE task definitions, the assumptions made in evaluation methodologies, and inherent differences in text corpora. First, we examine three subproblems that play a role in coref... | Noun phrase; Coreference resolution; MUC; ACE | 2009 |
| 465 |
 |
Tiwari, Ashutosh | Copper diffusion characteristics in single crystal and polycrystalline TaN | TaN has become a very promising diffusion barrier material for Cu interconnections, due to the high thermal stability requirement and thickness limitation for next generation ULSI devices. TaN has a variety of phases and Cu diffusion characteristics vary with different phases and microstructures. We... | Diffusion barriers; Copper diffusion; Tantalum nitride | 2003 |
| 466 |
 |
Tiwari, Ashutosh | Copper diffusion characteristics in single-crystal and polycrystalline TaN | We have investigated the diffusivity of copper in single-crystal (NaCl-structured) and polycrystalline TaN thin films grown by pulsed-laser deposition. Polycrystalline TaN films were grown directly on Si(100), while single-crystal films were grown with TiN buffer layers. Both poly- and single-crysta... | Diffusion barriers; Copper diffusion; Tantalum nitride | 2002 |
| 467 |
 |
Ikits, Milan | Coregistration of pose measurement devices using nonlinear least squares parameter estimation | Multimodal visual haptic user interfaces can be made more effective by accurately colocating the workspaces of their components. We have developed a coregistration technique for pose measurement devices based on nonlinear least squares parameter estimation. A reduced quaternion parameterization is u... | Coregistration; Pose measurement; Haptic interfaces | 2000 |
| 468 |
 |
Riloff, Ellen M. | Corpus-based approach for building semantic lexicons | Semantic knowledge can be a great asset to natural language processing systems, but it is usually hand-coded for each application. Although some semantic information is available in general-purpose knowledge bases such as Word Net and Cyc, many applications require domain-specific lexicons that repr... | Corpus-based method; Semantic lexicons | 1997 |
| 469 |
 |
Riloff, Ellen M. | Corpus-based bootstrapping algorithm for semi-automated semantic lexicon construction | Many applications need a lexicon that represents semantic information but acquiring lexical information is time consuming. We present a corpus-based bootstrapping algorithm that assists users in creating domain-specifi c semantic lexicons quickly. Our algorithm uses a representative text corpus for ... | Bootstrapping algorithm; Lexicon construction | 1999-06 |
| 470 |
 |
Riloff, Ellen M. | Corpus-based identification of non-anaphoric noun phrases | Coreference resolution involves finding antecedents for anaphoric discourse entities, such as definite noun phrases. But many definite noun phrases are not anaphoric because their meaning can be understood from general world knowledge (e.g., "the White House" or "the news media"). We have develope... | Corpus-based identification; Non-anaphoric noun phrases; Coreference resolution; MUC-4; Discourse entity; DE | 1999 |
| 471 |
 |
Riloff, Ellen M. | Corpus-based semantic lexicon induction with web-based corroboration | Various techniques have been developed to automatically induce semantic dictionaries from text corpora and from the Web. Our research combines corpus-based semantic lexicon induction with statistics acquired from the Web to improve the accuracy of automatically acquired domain-specific dictionari... | Corpus-based; Text corpora; Domain-specific dictionaries; Bootstrapping algorithm | 2009 |
| 472 |
 |
Regehr, John | Correctness proofs for device drivers in embedded systems | Computer systems do not exist in isolation: they must interact with the world through I/O devices. Our work, which focuses on constrained embedded systems, provides a framework for verifying device driver software at the machine code level. We created an abstract device model that can be plugged... | | 2010 |
| 473 |
 |
Stringfellow, Gerald B. | Correlation between surface structure and ordering in GaInP | Ga and In atoms in Ga0.52In0.48P layers spontaneously segregate to form alternating In- and Ga-rich {111} monolayers during organometallic vapor phase epitaxial (OMVPE) growth on (001) oriented GaAs substrates, thus forming the CuPt ordered structure. This ordering phenomenon is believed to be drive... | Transformations; Absorbtion spectra; Surface Properties | 1996 |
| 474 |
 |
Hansen, Charles D. | Cost-effective data-parallel load balancing | Load balancing algorithms improve a program's performance on unbalanced datasets, but can degrade performance on balanced datasets, because unnecessary load redistributions occur. This paper presents a cost-effective data-parallel load balancing algorithm which performs load redistributions only... | Load balancing | 1995 |
| 475 |
 |
Liu, Feng | Coulomb sink: a novel Coulomb effect on coarsening of metal nanoclusters on semiconductor surfaces | We propose the concept of a ‘‘Coulomb sink'' to elucidate the effect of Coulomb charging on coarsening of metal mesas grown on semiconductor surfaces.We show that a charged mesa, due to its reduced chemical potential, acts as a Coulomb sink and grows at the expense of neighboring neutral mesas. ... | Coulomb sink; Coulomb effect; Metal nanoclusters; Semiconductor surface; Pb mesas | 2004-09 |
