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Articles 40921 - 40950 of 50111
Full-Text Articles in Entire DC Network
Tree Structured Grobner Basis Computation On Parallel Machines, Hemal V. Shah, Jose A. B. Fortes
Tree Structured Grobner Basis Computation On Parallel Machines, Hemal V. Shah, Jose A. B. Fortes
Department of Electrical and Computer Engineering Technical Reports
With the advent of symbolic mathematical software packages such as Maple, Mathematics, and Macsyma, symbolic computation has become widely used in many scientific applications. Though a significant effort has been put in performing numeric computation on multiprocessors, symbolic computation on parallel machines is still in an unexplored state. However, symbolic mathematical applications are ideal candidates for parallel processing, because they are computationally intensive. This paper considers the parallel computation of Grobner basis, a special basis for a multivariate polynomial ideal over a field that plays a key role in symbolic computation. Large Grobner basis computation poses a challenging problem due …
A Simd Sparse Matrix-Vector Multiplication Algorithm For Computational Electromagnetics And Scattering Matrix Models, Nirav Harish Kapadia
A Simd Sparse Matrix-Vector Multiplication Algorithm For Computational Electromagnetics And Scattering Matrix Models, Nirav Harish Kapadia
Department of Electrical and Computer Engineering Technical Reports
A large number of problems in numerical analysis require the multiplication of a sparse matrix by a vector. In spite of the large amount of fine-grained parallelism available in the process of sparse matrix-vector multiplication, it is difficult to design an algorithm for distributed memory SIMD computers that can efficiently multiply an arbitrary sparse matrix by a vector. The difficulty lies in the irregular nature of the data structures required to efficiently store arbitrary sparse matrices, and the architectural constraints of a SIMD computer. We propose a new algorithm that allows the "regularity" of a data structure that uses a …
Modeling Of Growth Rates Of Selective Epitaxial Growth (Seg) And Epitaxial Lateral Overgrowth (Elo) Of Silicon In The Sih2cl2-Hcl-H2 System, Poonacha P. Kongetira, Gerold W. Neudeck, John P. Denton
Modeling Of Growth Rates Of Selective Epitaxial Growth (Seg) And Epitaxial Lateral Overgrowth (Elo) Of Silicon In The Sih2cl2-Hcl-H2 System, Poonacha P. Kongetira, Gerold W. Neudeck, John P. Denton
Department of Electrical and Computer Engineering Technical Reports
A semi-empirical model for the growth rate of selective epitaxial silicon(SEG) in the Dichlorosilane-HC1-Hz system that represents the experimenltal data has been presented. All epitaxy runs were done using a Gemini-I LPCVD pancake reactor. Dichlorosilane was used as the source gas and hydrogen as the carrier gas. Hydrogen Cllloride(HC1) was used to ensure that no nucleation took place on the oxide. The growth rate expression was considered to be the sum of a growth term dependent on the partial pressures of Dichlorosilane and hydrogen, and an etch berm that varies as the partial pressure of HC1. The growth and etch …
Asymptotically Optimal Heuristics For Bottleneck And Capacity Optimization Problems, Wojciech Szpankowski
Asymptotically Optimal Heuristics For Bottleneck And Capacity Optimization Problems, Wojciech Szpankowski
Department of Computer Science Technical Reports
No abstract provided.
Bit-Sequences: A Cache Invalidation Algorithm In Mobile Environments, Jin Jing, Omran Bukhres, Ahmed K. Elmagarmid, Rafael Alonso
Bit-Sequences: A Cache Invalidation Algorithm In Mobile Environments, Jin Jing, Omran Bukhres, Ahmed K. Elmagarmid, Rafael Alonso
Department of Computer Science Technical Reports
No abstract provided.
Geometric Contraints For Cagd, Christoph M. Hoffmann, Jörg Peters
Geometric Contraints For Cagd, Christoph M. Hoffmann, Jörg Peters
Department of Computer Science Technical Reports
No abstract provided.
A Graphics Package For Structural Biology, Ioana Maria Martin, Dan C. Marinescu
A Graphics Package For Structural Biology, Ioana Maria Martin, Dan C. Marinescu
Department of Computer Science Technical Reports
No abstract provided.
Distributed Lock Management For Mobile Transactions, Jin Jing, Omran Bukhres, Ahmed K. Elmagarmid
Distributed Lock Management For Mobile Transactions, Jin Jing, Omran Bukhres, Ahmed K. Elmagarmid
Department of Computer Science Technical Reports
No abstract provided.
A Pattern Matching Model For Misuse Intrusion Detection, Sandeep Kumar, Eugene H. Spafford
A Pattern Matching Model For Misuse Intrusion Detection, Sandeep Kumar, Eugene H. Spafford
Department of Computer Science Technical Reports
No abstract provided.
A Suboptimal Lossy Data Compression Based On Approximate Pattern Matching, Tomasz Luczak, Wojciech Szpankowski
A Suboptimal Lossy Data Compression Based On Approximate Pattern Matching, Tomasz Luczak, Wojciech Szpankowski
Department of Computer Science Technical Reports
No abstract provided.
Scheduling A Superscalar Pipelined Processor Without Hardware Interlocks, Heng-Yi Chao, Mary P. Harper
Scheduling A Superscalar Pipelined Processor Without Hardware Interlocks, Heng-Yi Chao, Mary P. Harper
Department of Electrical and Computer Engineering Technical Reports
In this paper, we consider the problem of scheduling a set of instructions on a single processor with multiple pipelined functional units. In a superscalar processor, the hardware can issue multiple instructions every cycle, providing a fine-grained parallelism for achieving order-ofmagnitude speed-ups. It is well known that the problem of scheduling a pipelined processor with uniform latencies, which is a subclass of the problem we consider here, belongs to the class of NP-Complete problems. We present an efficient lower bound algorithm that coniputes a tight lower bound on the length of an optimal schedule, and a new heuristic scheduling algorithm …
Resonant Tunneling Through Quantum Dot Arrays, Guanlong Chen, Gerhard Klimeck, Supriyo Datta, Guanhua Chen, William A. Goddard Iii
Resonant Tunneling Through Quantum Dot Arrays, Guanlong Chen, Gerhard Klimeck, Supriyo Datta, Guanhua Chen, William A. Goddard Iii
Birck and NCN Publications
We apply the Hubbard Hamiltonian to describe quantum-dot arrays weakly coupled to two contacts. Exact diagonalization is used to calculate the eigenstates of the arrays containing up to six dots and the linear-response conductance is then calculated as a function of the Fermi energy. In the atomic limit the conductance peaks form two distinct groups separated by the intradot Coulomb repulsion, while in the band limit the peaks occur in pairs. The crossover is studied. A finite interdot repulsion is found to cause interesting rearrangements in the conductance spectrum.
Tom Carroll, President And Owner, Carroll Publishing Company, Katina Strauch
Tom Carroll, President And Owner, Carroll Publishing Company, Katina Strauch
Against the Grain
No abstract provided.
In Praise Of Bookshops / Moe's Books, Berkeley, Ca, Tom Leonhardt
In Praise Of Bookshops / Moe's Books, Berkeley, Ca, Tom Leonhardt
Against the Grain
No abstract provided.
Drinking From The Firehose / Adventures Of A List Owner, Eleanor I. Cook
Drinking From The Firehose / Adventures Of A List Owner, Eleanor I. Cook
Against the Grain
No abstract provided.
An Analytic Approach For The Asymptotic Distribution Of The Height Of An Incomplete Digital Tree, Hosam Mahmoud, Wojciech Szpankowski
An Analytic Approach For The Asymptotic Distribution Of The Height Of An Incomplete Digital Tree, Hosam Mahmoud, Wojciech Szpankowski
Department of Computer Science Technical Reports
No abstract provided.
Interpolation Regions For Convex Low Degree Polynomial Curve Segments, Jörg Peters
Interpolation Regions For Convex Low Degree Polynomial Curve Segments, Jörg Peters
Department of Computer Science Technical Reports
No abstract provided.
Media Minder / The Electronic Challenge, Linda F. Crismond
Media Minder / The Electronic Challenge, Linda F. Crismond
Against the Grain
No abstract provided.
The Impact Of Electronic Ballast Compact Fluorescent Lighting On Power Distribution Systems, Reid Iwao Sasaki
The Impact Of Electronic Ballast Compact Fluorescent Lighting On Power Distribution Systems, Reid Iwao Sasaki
Department of Electrical and Computer Engineering Technical Reports
Due to the high costs of expanding generation and transmission capacities, utilities have been initiating programs to reduce peak power demand by the customer. A number of these programs, which are commonly referred to as demand side management programs, have turned to the promotion of electronic ballast compact fluorescent lamps (CFLs) as an alternative to traditional incandescent lamps. These lamps provide a higher luminance and increased life as compared to their incandescent counterparts. Unfortunately, electronic ballast CFLs consume large amounts of harmonic current which may prove detrimental to the power distribution system. This thesis presents an introduction to the electronic …
Constraint-Based Parametric Conics For Cad, Ioannis Fudos, Christoph M. Hoffmann
Constraint-Based Parametric Conics For Cad, Ioannis Fudos, Christoph M. Hoffmann
Department of Computer Science Technical Reports
No abstract provided.
Science Pad: An Intelligent Electronic Notepad For Ubiquitous Scientific Computing, Anupam Joshi, Sanjiva Weerawarana, Tzvetan T. Drashansky, Elias N. Houstis
Science Pad: An Intelligent Electronic Notepad For Ubiquitous Scientific Computing, Anupam Joshi, Sanjiva Weerawarana, Tzvetan T. Drashansky, Elias N. Houstis
Department of Computer Science Technical Reports
No abstract provided.
Processing Pde Interface Conditions Ii, Tzvetan Drashansky, John R. Rice
Processing Pde Interface Conditions Ii, Tzvetan Drashansky, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
Path-Planning For A Mobile Robot Sweeper, Chandrajit Bajaj, Fausto Bernardini, Steve Cutchin, Kokichi Sugihara
Path-Planning For A Mobile Robot Sweeper, Chandrajit Bajaj, Fausto Bernardini, Steve Cutchin, Kokichi Sugihara
Department of Computer Science Technical Reports
No abstract provided.
Library Profile / The University Of Hawaii At Manoa Library, Thelma Diercks, Barbara Dean
Library Profile / The University Of Hawaii At Manoa Library, Thelma Diercks, Barbara Dean
Against the Grain
No abstract provided.
Issues In Vendor-Library Relations / It's The Same New Song, Judy Webster, Barry Fast
Issues In Vendor-Library Relations / It's The Same New Song, Judy Webster, Barry Fast
Against the Grain
No abstract provided.
From Your Editor, Katina Strauch
Mourning Serial, Phil Greene
Bet You Missed It/ Press Clippings/ In The News, Rosann Bazirjian
Bet You Missed It/ Press Clippings/ In The News, Rosann Bazirjian
Against the Grain
No abstract provided.
Full Page Ads, Editor
Table Of Contents, Editor