Digital Commons Network^™

The Ipe-Pc Integrated Programming Environment, Nurcan Coskun, Thomas J. Sager

Computer Science Technical Reports

An Integrated Programming Environment, IPE-PC, that supports pseudo-code development has been designed and implemented. This environment is based on a Pascal-like language which is designed according to the requirements of a language-based environment. The nucleus of IPE-PC is a language-based editor which represents programs as graphs internally. The same representation is used in every mode of the environment (i.e., editing, compilation, execution, debugging and translation). The system provides facilities to take advantage of both top-down and bottom-up programming. Stepwise refinement has been supported by providing comment structures that can be transformed into procedures. Bottom-up programming is supported because it is …

Resonant Transfer And Excitation In Li-Like F Colliding With H₂, Michael Schulz, Reinhold S. Schuch, Sheldon Datz, Edson L B Justiniano, Philip D. Miller, Harald Schone

Physics Faculty Research & Creative Works

We have measured coincidences between x rays and projectiles that have captured one electron in F⁶⁺ + H₂ collisions at projectile energies between 15 and 33 MeV. The cross sections for capture and simultaneous x-ray emission as a function of projectile energy show clear structures. Indications of an unexpectedly high population of high-n states predominantly formed by resonant transfer and excitation (RTE) were found. Above the Kln (n>1) RTE resonance energies another maximum was observed.

Sulfide In Surface Waters Of The Western Atlantic Ocean, Gregory A. Cutter, Christian F. Krahforst

OES Faculty Publications

Using newly developed techniques, some preliminary data on hydrogen sulfide in surface waters of the western Atlantic have been obtained. Concentrations of total sulfide range from <0.1 to 1.1 nmol/L, and vary on a diel basis. At these concentrations, sulfide may affect the cycling of several trace metals via the formation of stable complexes. Production of sulfide in oxygenated seawater may occur through the hydrolysis of carbonyl sulfide or by sulfate reduction within macroscopic particles in the water column. Removal mechanisms can include oxidation, complexation with particulate trace metals, and metal sulfide precipitation. However, the temporal and spatial distributions suggest a complex set of processes governing the behavior of sulfide in the surface ocean.

Pseudoprime L-Ideals In A Class Of F-Rings, Suzanne Larson

Mathematics, Statistics and Data Science Faculty Works

In a commutative f-ring, an l-ideal I is called pseudoprime if ab = 0 implies a ∈ I or b ∈ I, and is called square dominated if for every a ∈ I, |a| ≤ x² for some x ∈ A such that x² ∈ I. Several characterizations of pseudoprime l-ideals are given in the class of commutative semiprime f-rings in which minimal prime l-ideals are square dominated. It is shown that the hypothesis imposed on the f-rings, that minimal prime l-ideals are square dominated, cannot be omitted or generalized.

An Event-Action Model And Associated Architecture For Monitoring Parallel And Distributed Systems, Dan C. Marinescu, James E. Lumpp, Thomas L. Casavant, Howard Jhay Siegel

Department of Computer Science Technical Reports

No abstract provided.

Concerning Periodic Points In Mappings Of Continua, W. (William) T. (Thomas) Ingram

Mathematics and Statistics Faculty Research & Creative Works

In this paper we present some conditions which are sufficient for a mapping to have periodic points. © 1988 American Mathematical Society.

Chromospherically Active Stars. V. Hd 91816=Lr Hya: A Double-Lined By Draconis Type Binary, Francis C. Fekel, Kim Gillies, John L. Africano, Robert Quigley

Information Systems and Engineering Management Research Publications

Observations of HD 91816=LR Hya obtained between 1982 and 1988 show it to consist of two nearly identical K0 dwarfs and to have an orbital period of 6.866 days and an orbital eccentricity of 0.014 + or - 0.003. The results suggest that the system has an age equal to or greater than that of the Hyades cluster. A spectroscopic parallax of 0.027 is obtained, and individual minimum masses of 0.55 solar masses each are found, implying an inclination of 61 + or - 3 deg.

Santa Clara Magazine, Volume 31 Number 1, Fall 1988, Santa Clara University

Santa Clara Magazine

12 - MY CHINA YEAR Cathy Morrissey '85 guides us through her year in China, teaching English as a second language in Handan.

19 - IT PAYS TO LET YOUR KID RUN WILD The story of a remarkable relationship between a Japanese firm and Michael Franz '75.

21 - THE REWAK YEARS Alumna-journalist Jeanne Huber describes the way Santa Clara grew during the Rewak administration.

26 - THE DEGNAN WAY How a respected English professor turns undergraduates into professional writers.

Ua66/7/2 Hilltopper News, Wku Chemistry

WKU Administration Documents

Newsletter created by and about the WKU Chemistry department.

Implementing Educational Software And Evaluating Its Academic Effectiveness: Part Ii, Karen Jolicoeur, Dale E. Berger

CGU Faculty Publications and Research

In Part I, published last month, we presented a successful classroom implementation plan for integrating educational software into elementary school classrooms. Implementing educational software successfully into classrooms is an essential prerequisite to achieving the second goal of the present research-evaluating how much students learned by using specific software programs. In Part II, we will measure how effective eight software programs were at teaching fifth grade students new fraction concepts and spelling words. In addition, we will examine the validity of teacher and student software ratings based on the effectiveness of each program.

Modifications And Improvements To The Sea Beam System On Board R/V Thomas Washington, Christian De Moustier, T Hylas, J C. Phillips

Center for Coastal and Ocean Mapping

A number of modifications to the narrowbeam echo-sounder and echo processor of the Sea Beammultibeam bathymetric survey system have been implemented. These include the design and construction of a digital pitch compensator, the ability to use a variety of sensors for vertical reference, the design and construction of hardware test equipment, and an interface to the shipboard DEC VAX-11/730 computer for data logging, automation of start-up procedures, and performance monitoring

Water Current, Volume 20, October 1988

Water Current Newsletter

Bonneville Power Administrator Compares Missouri Basin Reservoirs with Pacific Northwest's
Nebraska Ranks Third in Water Use in U.S.
Spalding Appointed Associate Director of UNL Water Center
Nebraska Water Conference Council Holds Fall Meeting
Water Research Proposals are Due December 1
Answers to Water Quality Questions Closer with Burlington Northern Foundation $ Million Grant
Former Nebraskans Address Northwest Water Tour Group
Drought Responses Discussed at Forum

Subspaces Of Lp,Q, N L. Carothers, S J. Dilworth

Faculty Publications

We examine the subspace structure of the Lorentz function space Lp,q[0, oo). Our main result is that a subspace of Lp,q[0, oo), p ^ 2, q < oo,must either strongly embed in Lp[0,1] or contain a complemented copy of lq.

Use Of Secondary Equilibria For The Separation Of Small Solutes By Field-Flow Fractionation, Alain Berthod, Daniel W. Armstrong, J. Calvin Giddings, Marcus N. Myers

Chemistry Faculty Research & Creative Works

The dynamic range and selectivity of field-flow fractionation (FFF) can be Increased by using secondary chemical equilibria (SCE). SCE are established by adding a macromolecular additive or aggregate, which strongly Interacts with the field, to the carrier solution. In this study an oil-ln-water (O/W) microemulsion was used as the carrier solution in a sedimentation FFF apparatus. The microemulsion droplets (referred to as the "support") interact with the field and are retained relative to the bulk water. Small solutes that partition or bind to the microemulsion droplets are also retained relative to solutes that do not Interact with the support. In …

Trace Elements In Northern Virginia Middle Ordovician Carbonates: Implications For Diagenesis, Ruth Ann Strauss

OES Theses and Dissertations

Ninety-three carbonate rock samples collected from four of the major lithofacies types present in the Middle Ordovician limestone sequence of northwestern Virginia were analyzed to investigate whether the lithofacies bear the geochemical signature of the depositional and/or the diagenetic environment. Significant variations in Cr, Fe, Mg, Mn and Sr concentrations exist among the major lithofacies types. Low levels of Sr in both New Market lithofacies are indicative of an open system during diagenesis. Dissimilar Fe and Mn concentrations between these, however, reflect water chemistry differences in the depositional environment. Increasingly greater Cr, Fe, Mn, and Sr concentrations in the Lincolnshire …

A Parallel-Processing Subsystem For Rapid 3-D Interpolation Of Ct Images, William A. Barrett, Stephen J. Allan, Scott R. Cannon

Faculty Publications

An inexpensive parallel-processing subsystem for the rapid interpolation of CT image planes is demonstrated with a variety of node topologies. The subsystem is based on a tree network of INMOS T414 Transputer processors and is hosted by an AT-based image workstation. The subsystem accepts a stack of eight arbitrarily-spaced 256 x 256 image planes from the host. Subsystem output to the host consists of a stack of 32 scaled and evenly-spaced image planes (256 x 256 x 32 with cubic voxels). Benchmark execution times ranged from 12.3 seconds for three nodes to 5.8 seconds for eight nodes.

News Release, Fermi National Accelerator Laboratory

Documents

Dr. Leon M. Lederman, Director of Fermi National Accelerator Laboratory (Fermilab) in Batavia, Illinois, has been named one of three recipients of the 1988 Nobel Prize for physics. Sharing the prize with Dr. Lederman are Dr. Melvin Schwartz and Dr. Jack Steinberger. The three have been cited for their discovery, in 1962, of a second neutrino, an elementary subatomic particle. Fermilab is operated by the Universities Research Association, Inc., under contract with the United States Department of Energy (DOE).

Singular-Value Decomposition And The Grassberger-Procaccia Algorithm, Alfonso M. Albano, J. Muench, C. Schwartz, A. I. Mees, P. E. Rapp

Physics Faculty Research and Scholarship

A singular-value decomposition leads to a set of statistically independent variables which are used in the Grassberger-Procaccia algorithm to calculate the correlation dimension of an attractor from a scalar time series. This combination alleviates some of the difficulties associated with each technique when used alone, and can significantly reduce the computational cost of estimating correlation dimensions from a time series.

Computer Science—A Mathematical Science And Accreditation, Frank Garnett Walters

Mathematics and Statistics Faculty Research & Creative Works

No abstract provided.

Joyce Performance On A Multiprocessor, Per Brinch Hansen, Rangachari Anand

Electrical Engineering and Computer Science - Technical Reports

Joyce is a parallel programming language based on CSP and Pascal. The language has been moved from the IBM PC to the Encore Multimax. The paper explains how the multiprocessor implementation of Joyce was guided by performance evaluation. The measurements show that the speed-up of Joyce programs follows Amdahl’s law.

A Multiprocessor Implementation Of Joyce, Per Brinch Hansen

Electrical Engineering and Computer Science - Technical Reports

Joyce is a programming language for parallel computers based on CSP and Pascal. A Joyce program defines concurrent agents which communicate through unbuffered channels. This paper describes a multiprocessor implementation of Joyce.

Ua66/8/3 Geogram, Wku Geography & Geology

WKU Administration Documents

Newsletter created by and about the WKU Geography & Geology highlighting activities of faculty, students and alumni.

The Space Of Minimal Prime Ideals Of C(X) Need Not Be Basically Disconnected, Alan Dow, Melvin Henriksen, Ralph Kopperman, J. Vermeer

All HMC Faculty Publications and Research

Problems posed twenty and twenty-five years ago by M. Henriksen and M. Jerison are solved by showing that the space of minimal prime ideals of the ring C(X) of continuous real-valued functions on a compact (Hausdorff) space need not be basically disconnected-or even an F-space.

Photoengraving, Photowires, And Microcomputers: Technological Incentives For Journalistic Cartography, Mark Monmonier

Syracuse Scholar (1979-1991)

No abstract provided.

Inequalities For Sums Of Independent Random Variables, N L. Carothers, S J. Dilworth

Faculty Publications

A moment inequality is proved for sums of independent random variables in the Lorentz spaces LPtq, thus extending an inequality of Rosenthal. The latter result is used in combination with a square function inequality to give a proof of a Banach space isomorphism theorem. Further moment inequalities are also proved.

State Of The Fisheries Report 1987, Fisheries Department Of Western Australia

Status Reports of the Fisheries and Aquatic Resources

Western Australia continues to be one of the leading fishing States in Australia. The total gross value of fish, crustaceans and molluscs for 1986/87 was $172 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $213 million.

Efficient Algorithms For Hybrid Data/Voice Transmissions, Andrzej Kusiuk, Wojciech Szpankowski

Department of Computer Science Technical Reports

No abstract provided.

Output-Sensitive Hidden Surface Elimination For Rectangles, Mikhail J. Atallah, Michael T. Goodrich

Department of Computer Science Technical Reports

No abstract provided.

Semi-Automatic Process Decomposition For Non-Shared Memory Machines, Charles Koelbel, Piyush Mehrotra

Department of Computer Science Technical Reports

No abstract provided.

A Formalism For Describing Data Distribution, Charles Koelbel

Department of Computer Science Technical Reports

No abstract provided.