Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

1998

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 4081 - 4110 of 6046

Full-Text Articles in Entire DC Network

Comparative Risk Assessment And Environmental Priorities Projects: A Forum, Not A Formula, John S. Applegate Jan 1998

Comparative Risk Assessment And Environmental Priorities Projects: A Forum, Not A Formula, John S. Applegate

Articles by Maurer Faculty

No abstract provided.

Go to article

Performance Of Flexible Pavements Reinforced With Geogrids., Bora Kutuk Jan 1998

Performance Of Flexible Pavements Reinforced With Geogrids., Bora Kutuk

Graduate Theses, Dissertations, and Problem Reports (ETD)

This report presents the results of an investigation on the effectiveness of glass fiber grids as a reinforcement of the asphalt base layer in a flexible pavement. The study involved both laboratory experimental work and computer analysis of pavement sections. As part of the experimental work, twenty flexible pavement sections (with and without glass fiber grids) were constructed and tested in the laboratory. The laboratory-scale pavement sections were instrumented with pressure cells, displacement gages, and strain gages. Test sections were subjected to 1,000,000 load applications at a frequency of 1.2 Hz. Static loading tests were conducted at intervals of 100,000 …

Go to article

Evaluation Of The Effect Of Temporal Variations In Flow Patterns On Capacity Design For Underground Coal Mine Belt Systems., Xueming Wang Jan 1998

Evaluation Of The Effect Of Temporal Variations In Flow Patterns On Capacity Design For Underground Coal Mine Belt Systems., Xueming Wang

Graduate Theses, Dissertations, and Problem Reports (ETD)

Belt conveyor haulage systems are critical to keep an underground-coal mine running profitably. It is not easy to design a reliable and efficient system. The issues associated with designing the capacity for a belt conveyor and a bunker are addressed in this dissertation. Several design models have been discussed, and discrete-event simulation models are recommended as the most flexible and useful tools. Most of the simulation models require the use of a step-function model to describe the loading process at each loading point. Over the years, simulation practitioners have generally employed one of the three conventional models, the peak loading …

Go to article

Cardinal Numbers Connected With Adding Darboux-Like Functions., Francis Edmund Jordan Jan 1998

Cardinal Numbers Connected With Adding Darboux-Like Functions., Francis Edmund Jordan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Let {dollar}F\\subseteq\\IR\\sp\\IR.{dollar} The additivity A(F) of F is the minimum cardinality of a family {dollar}G\\subseteq\\IR\\sp\\IR{dollar} with the property that {dollar}h\\ +\\ G\\subseteq F{dollar} for no {dollar}h\\in\\IR\\sp\\IR.{dollar} The additivities of various families of functions which generalize some aspect of continuity are known. These families, referred to as the Darboux-like functions, include the almost continuous, Darboux, connectivity, perfect road, peripherally continuous, and extendable functions. The additivities of the complements of the Darboux-like families are calculated or estimated. If {dollar}F\\subseteq\\IR\\sp\\IR{dollar} the additivity of {dollar}\\IR\\sp\\IR\\\\ F{dollar} is the minimum cardinality of a family {dollar}G\\subseteq\\IR\\sp\\IR{dollar} with the property that {dollar}(h + G)\\cap F\ot=\\emptyset{dollar} for every …

Go to article

Development Of A Tolerance Design Model In Manufacturing Assembly And Design Of Cost-Based Cusum Control Charts Using Taguchi Quality Loss Function., Jung-Dae Kim Jan 1998

Development Of A Tolerance Design Model In Manufacturing Assembly And Design Of Cost-Based Cusum Control Charts Using Taguchi Quality Loss Function., Jung-Dae Kim

Graduate Theses, Dissertations, and Problem Reports (ETD)

The quadratic loss function has been used in the statistical and control theory literature. Taguchi applied quadratic loss function to quality improvement. His quality loss function has been known to be effective in assessing quality loss in monetary terms, while most of the traditional quality control techniques, such as tolerance design and control chart design, use estimated cost factors. Taguchi's quality loss function concept is different from traditional methods in which all the values within the specification limits are equally acceptable. However, his idea is that for many products, parts elements and components, a target or nominal size or value …

Go to article

Thermal Stress Prediction For Direct-Chill Casting Of A High Strength Aluminum Alloy., Jian Wan Jan 1998

Thermal Stress Prediction For Direct-Chill Casting Of A High Strength Aluminum Alloy., Jian Wan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Direct chill (D.C.) casting is one of the most important semi-continuous methods for the production of high strength aluminum alloys. The enormous unevenly cooling of ingots during the casting process can cause significant thermally induced stresses, which may result in solidification cracking. The control of the cracking during DC casting is a state-of-art technology, and many finite element models have been applied to simulate the solidification process during ingot casting. So far, most of the simulations can predict the thermal fields of the ingot accurately, but very few works can get satisfactory thermal stress profiles. One of the major difficulties …

Go to article

Choice, Changing Over, And Reinforcement Delay., Timothy Alan Shahan Jan 1998

Choice, Changing Over, And Reinforcement Delay., Timothy Alan Shahan

Graduate Theses, Dissertations, and Problem Reports (ETD)

The independent effects of two normally confounded delays to reinforcement produced by changing between concurrent variable-interval schedules of reinforcement were examined with pigeons. In Experiments 1 and 2, combinations of changeover delays and fixed-interval travel requirements were arranged for changeovers in a changeover-key concurrent schedule procedure. The delay from a changeover-produced change in stimulus conditions to a reinforcer was varied while the delay between the last response on one alternative and a reinforcer on the other (the total obtained delay) was held constant. Changeover rates decreased as a negative power function of the total obtained delay. The delay between a …

Go to article

Requiring A Thumbprint For Notarized Transactions: The Battle Against Document Fraud, 31 J. Marshall L. Rev. 803 (1998), Vincent J. Gnoffo Jan 1998

Requiring A Thumbprint For Notarized Transactions: The Battle Against Document Fraud, 31 J. Marshall L. Rev. 803 (1998), Vincent J. Gnoffo

UIC Law Review

No abstract provided.

Go to article

The Impact Of Technology On The Notary Process, 31 J. Marshall L. Rev. 911 (1998), Glen-Peter Ahlers Sr. Jan 1998

The Impact Of Technology On The Notary Process, 31 J. Marshall L. Rev. 911 (1998), Glen-Peter Ahlers Sr.

UIC Law Review

No abstract provided.

Go to article

Fidelity To Original Preferences: An Application Of Consumer Choice Theory To The Problems Of Legal Interpretation, 31 J. Marshall L. Rev. 1111 (1998), Ahmed M. Saeed Jan 1998

Fidelity To Original Preferences: An Application Of Consumer Choice Theory To The Problems Of Legal Interpretation, 31 J. Marshall L. Rev. 1111 (1998), Ahmed M. Saeed

UIC Law Review

No abstract provided.

Go to article

Title Ix's Collegiate Sports Application Raises Serious Questions Regarding The Role Of The Ncaa, 31 J. Marshall L. Rev. 1303 (1998), Darryl C. Wilson Jan 1998

Title Ix's Collegiate Sports Application Raises Serious Questions Regarding The Role Of The Ncaa, 31 J. Marshall L. Rev. 1303 (1998), Darryl C. Wilson

UIC Law Review

No abstract provided.

Go to article

Graduate Catalog 1998-2000, Winona State University Jan 1998

Graduate Catalog 1998-2000, Winona State University

Graduate Course Catalogs

A course catalog for graduate studies at Winona State University for 1998-2000.

Go to article

Annual Report Of The Town Officers Of The Town Of Winchester, New Hampshire July 1, 1997 Through June 30, 1998., Winchester Town Representatives Jan 1998

Annual Report Of The Town Officers Of The Town Of Winchester, New Hampshire July 1, 1997 Through June 30, 1998., Winchester Town Representatives

Winchester, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Go to article

Some Root Invariants And Steenrod Operations In Ext_A(F2,F2), Robert R. Bruner Jan 1998

Some Root Invariants And Steenrod Operations In Ext_A(F2,F2), Robert R. Bruner

Mathematics Faculty Research Publications

We give the results of computations of root invariants in Ext over the Steenrod algebra through the 25-stem, with partial information through the 45-stem. This allows the computation of some new Steenrod operations as well.

Go to article

Some Remarks On The Root Invariant, Robert R. Bruner Jan 1998

Some Remarks On The Root Invariant, Robert R. Bruner

Mathematics Faculty Research Publications

We show how the root invariant of a product depends upon the product of the root invariants, give some examples of the equivariant definition of the root invariant, and verify a weakened form of the algebraic Bredon-Löffler conjecture.

Go to article

A Yoneda Description Of The Steenrod Operations, Robert R. Bruner Jan 1998

A Yoneda Description Of The Steenrod Operations, Robert R. Bruner

Mathematics Faculty Research Publications

No abstract provided.

Go to article

A Holographic Model Of Management : The Service Imperative For Academics And Practitioners, V S Mahesh Jan 1998

A Holographic Model Of Management : The Service Imperative For Academics And Practitioners, V S Mahesh

IIMB Management Review

Business graduates, especially from premier institutes of management, have long been wooed by all sectors of industry and business alike. By and large, they have the reputation of being the star performers of their organisations. Have business graduates lived up to their promise? How far has their education equipped them to face the challenges of the actual business environment? How have they coped with and geared up to the post globalisation and liberalisation scenario? How confident are they of managing organisations creatively, of dealing with tasks as wide ranging as interfacing sensitively with customers and putting processes in place? Bringing …

Go to article

Ionospheric Storm Simulations Driven By Magnetospheric Mhd And Empirical Models With Data Comparisons, Jan Josef Sojka, Robert W. Schunk, M. D. Bowline, J. Chen, S. Slinker, J. Fedder, P. J. Sultan Jan 1998

Ionospheric Storm Simulations Driven By Magnetospheric Mhd And Empirical Models With Data Comparisons, Jan Josef Sojka, Robert W. Schunk, M. D. Bowline, J. Chen, S. Slinker, J. Fedder, P. J. Sultan

All Physics Faculty Publications

The results of two ionospheric simulations are compared with each other and with ionospheric observations of the southern hemisphere for the magnetic cloud passage event of January 14, 1988. For most of the event one simulation agrees with observations, while the other does not. Electric fields and electron precipitation patterns generated by a magnetospheric MHD model are used as inputs to a physical model of the ionosphere in the successful simulation, while empirical electric fields and electron precipitation are used as the inputs for the second simulation. In spite of ionospheric summer conditions a large and deep polar hole is …

Go to article

Superfluorescence From Optically Trapped Calcium Atoms, Xianming Han Jan 1998

Superfluorescence From Optically Trapped Calcium Atoms, Xianming Han

Scholarship and Professional Work - LAS

We have studied superfluorescence (SF) under highly unfavorable conditions of rapid collisional and radiative distribution in a Doppler-broadened medium. Nanosecond SF pulses at 5.5 μm were generated on the Ca 4s4p1P1–3d4s1D2 transition from a column of calcium vapor buffered with Ar by optically pumping the 4s21S0–4s4p1P1 transition. The Rabi frequency associated with the intense pump pulse prevents the occurrence of SF while the pump laser is on. As a result, the predicted scaling laws that describe the properties of SF in a transversely excited system, such as peak heights, pulse widths, and delay times, are shown to apply in our …

Go to article

Sibyl 1998, Otterbein University Jan 1998

Sibyl 1998, Otterbein University

Otterbein University Yearbooks

No abstract provided.

Go to article

Fractional Crystallization And Magma Mingling/Mixing Processes In The Monzonitic Association In The Sw Part Of The Composite Yozgat Batholith (Şefaatli-Yerköy, Sw Yozgat), Si̇bel Tatar, Durmuş Boztuğ Jan 1998

Fractional Crystallization And Magma Mingling/Mixing Processes In The Monzonitic Association In The Sw Part Of The Composite Yozgat Batholith (Şefaatli-Yerköy, Sw Yozgat), Si̇bel Tatar, Durmuş Boztuğ

Turkish Journal of Earth Sciences

The Yozgat batholith takes place in the passive margin of the Anatolide-Pontide convergence system. It includes; syn-collisional S-type, two-mica granites; post-collisional I-type, calcalkaline monzonitic association, and post-collisional, M-type, tholeiitic gabbroic/dioritic association. Among these associations, the monzonitic association is also subdivided into five mapable units such as Cankılı monzogabbro/monzodiorite, Akçakoyunlu quartz monzodiorite, Adatepe quartz monzonite, Yassiagil monzogranite and Karakaya monzogranite. All these subunits, except the Karakaya monzogranite, include K-feldspar megacrysts. These five subunits represent some evidence of fractional crystallization (FC) and magma mingling/mixing processes by means of field, mineralogical-petrographical and geochemical characteristics. There is a good zonation in the field that …

Go to article

Wooster Magazine: Winter 1998, Jeffery G. Hanna Jan 1998

Wooster Magazine: Winter 1998, Jeffery G. Hanna

Wooster Magazine: 1991-2000

This edition of the Wooster Magazine was published in the winter of 1998. The first article discusses the new computers that have been placed into seminar rooms in Kauke. Pages six and seven have responses from the public as to whether technology is a blessing or a curse. The next section is titled "Endless Questions" by Daniel Calhoun. This section discusses the beginnings of Independent Study. Fred Cropp's article is a guide of his last tour of the Grand Canyon. The Class Notes section is from page seventeen to forty-eight. The College of Wooster has committed to addressing alcohol abuse.

Go to article

Sontrac—A Low Background, Large Area Solar Neutron Spectrometer, James M. Ryan, D Holslin, John R. Macri, Mark L. Mcconnell, Cornelia B. Wunderer Jan 1998

Sontrac—A Low Background, Large Area Solar Neutron Spectrometer, James M. Ryan, D Holslin, John R. Macri, Mark L. Mcconnell, Cornelia B. Wunderer

Space Science Center

SONTRAC is a scintillating fiber neutron detector designed to measure solar flare neutrons from a balloon or spacecraft platform. The instrument is comprised of alternating orthogonal planes of scintillator fibers viewed by photomultiplier tubes and image intensifier/CCD camera optics. It operates by tracking the paths of recoil protons from the double scatter of 20 to 200 MeV neutrons off hydrogen in the plastic scintillator, thereby providing the necessary information to determine the incident neutron direction and energy. SONTRAC is also capable of detecting and measuring high-energy gamma rays >20 MeV as a “solid-state spark chamber.” The self-triggering and track imaging …

Go to article

Mev Measurements Of Gamma-Ray Bursts By Cgro-Comptel, A Connors, W Collmar, W Hermsen, S C. Kappadath, R M. Kippen, L Kuiper, Mark L. Mcconnell, F Pelaez, James M. Ryan, V Schonfelder, M Varendorff, O R. Williams, C Winkler, C A. Young Jan 1998

Mev Measurements Of Gamma-Ray Bursts By Cgro-Comptel, A Connors, W Collmar, W Hermsen, S C. Kappadath, R M. Kippen, L Kuiper, Mark L. Mcconnell, F Pelaez, James M. Ryan, V Schonfelder, M Varendorff, O R. Williams, C Winkler, C A. Young

Space Science Center

Since the launch of the Compton Gamma-Ray Observatory in April 1991, the imaging COMPTEL telescope has accumulated positions and 0.75–30 MeV spectra of more than thirty gamma-ray bursts within its ∼π sr field of view. In an ongoing collaboration with BACODINE/GCN, COMPTEL positions are relayed to a global network of multiwavelength observers in near real time (∼10 minutes). Here we summarize the MeV properties, and present spatial, spectral, and temporal data for the latest of these events, GRB 970807. In concurrence with earlier SMM and current BATSE, OSSE, and EGRET measurements, COMPTEL data add to the accumulating evidence that GRB …

Go to article

A Hard X-Ray Solar Flare Polarimeter Design Based On Scintillating Fibers, James M. Ryan, Mark L. Mcconnell, D J. Forrest, John R. Macri, M Mcclish, W T. Vestrand Jan 1998

A Hard X-Ray Solar Flare Polarimeter Design Based On Scintillating Fibers, James M. Ryan, Mark L. Mcconnell, D J. Forrest, John R. Macri, M Mcclish, W T. Vestrand

Space Science Center

We have developed a design for a Compton scatter polarimeter to measure the polarization of hard X-rays (50–300 keV) from solar flares. The modular design is based on an annular array of scintillating fibers coupled to a 5-inch position-sensitive PMT. Incident photons scatter from the fiber array into a small array of NaI detectors located at the center of the annulus. The location of the interactions in both the fiber array and in the NaI array can be used to measure the linear polarization of the incident flux. This compact design may be well-suited to a variety of astrophysical applications. …

Go to article

Graduate Catalog - The School Year 1996-1998, Prairie View A&M University Jan 1998

Graduate Catalog - The School Year 1996-1998, Prairie View A&M University

Graduate Catalog

No abstract provided.

Go to article

The Expanding Public Trust Doctrine: A Warning To Environmentalists And Policy Makers, Geoffrey R. Scott Jan 1998

The Expanding Public Trust Doctrine: A Warning To Environmentalists And Policy Makers, Geoffrey R. Scott

Fordham Environmental Law Review

No abstract provided.

Go to article

Not Just An Act Of Mercy: The Demise Of Post-Conviction Relief And A Rightful Claim To Clemency, Kathleen M. Ridolfi Jan 1998

Not Just An Act Of Mercy: The Demise Of Post-Conviction Relief And A Rightful Claim To Clemency, Kathleen M. Ridolfi

Northern California Innocence Project Scholarship

No abstract provided.

Go to article

Uncertainty And Variability Analysis In The Estimation Of Human Exposure To Mercury From Seafood Consumption Using Two-Dimensional Monte Carlo Simulations, J. Keith Bangerter Jan 1998

Uncertainty And Variability Analysis In The Estimation Of Human Exposure To Mercury From Seafood Consumption Using Two-Dimensional Monte Carlo Simulations, J. Keith Bangerter

MUSC Theses and Dissertations

Fish and shellfish are a beneficial food source due to their high protein content, low saturated fat content, and low cholesterol content; they possess beneficial omega-3 fatty acids and antioxidants such as vitamin E and selenium. Recent studies identified a decreased risk of sudden cardiac death in seafood consumers. Per capita seafood consumption increased 27% from 1975 to 1990, with nearly 95% of the U.S. population consuming some kind of fish or shellfish product each year. But seafood consumption may pose health risks which need to be weighed against benefits. One of potential risks is the toxicity of methylmercury. Mercury …

Go to article

Adoption, Diffusion, And Optimal Uses Of Computer Technologies For Instruction In Higher Education: A Case Study Of A Midwest College, Alan Craig Hueth Jan 1998

Adoption, Diffusion, And Optimal Uses Of Computer Technologies For Instruction In Higher Education: A Case Study Of A Midwest College, Alan Craig Hueth

Graduate Theses and Dissertations

No abstract provided.

Go to article

First Prev Next Last