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

Digital Commons Network™

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

Physical Sciences and Mathematics

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1891 - 1920 of 2149

Full-Text Articles in Entire DC Network

Caribbean: Online Bibliography Environmental History Of Latin America, Darcy C. Del Bosque Jan 1999

Caribbean: Online Bibliography Environmental History Of Latin America, Darcy C. Del Bosque

Library Faculty Research

This is an annotated bibliography of articles, conference proceedings, reports, and books.


1998 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library Oct 1998

1998 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library

Scholars and Artists Bibliographies

This bibliography was created for the annual Friends of the Michael Schwartz Library Scholars and Artists Reception, recognizing scholarly and creative achievements of Cleveland State University faculty, staff and emeriti


A Resource Allocation Mechanism Based On Cost Function Synthesis In Complex Systems, Carlos C. Amaro Aug 1998

A Resource Allocation Mechanism Based On Cost Function Synthesis In Complex Systems, Carlos C. Amaro

Dissertations

While the management of resources in computer systems can greatly impact the usefulness and integrity of the system, finding an optimal solution to the management problem is unfortunately NP hard. Adding to the complexity, today's 'modern' systems - such as in multimedia, medical, and military systems - may be, and often are, comprised of interacting real and non-real-time components. In addition, these systems can be driven by a host of non-functional objectives – often differing not only in nature, importance, and form, but also in dimensional units and range, and themselves interacting in complex ways. We refer to systems exhibiting …


Collaborative Decision Support Systems For Facility Management, Arthur J. Chapman, Jens G. Pohl Aug 1998

Collaborative Decision Support Systems For Facility Management, Arthur J. Chapman, Jens G. Pohl

Collaborative Agent Design (CAD) Research Center

Agent-based collaborative decision support is a methodology of utilizing domain specific intelligent systems, interacting in a common environment, to partner with one or more human decision makers to reach a consensus solution to a complex problem. An example is the recently developed Collaborative Infrastructure Assessment Tool (CIAT) that provides a collaborative planning facility management tool in support of military pier and port management. This methodology is applicable to many similar dynamic facility management problems where the complexity of issues and the number of decision makers result in the need for domain specific agents, a common view of the data, and …


Seasonal Variation In Reception Of Fin Whale Calls At Five Geographic Areas In The North Pacific Jul 1998

Seasonal Variation In Reception Of Fin Whale Calls At Five Geographic Areas In The North Pacific

United States Department of Commerce: Staff Publications

In late August 1991 scientists at the National Oceanic and Atmospheric Administration’s (NOAA) National Marine Mammal Laboratory (NMML) and Pacific Marine Environmental Laboratory (PMEL) began a pilot study to investigate the capability of hydrophones from the US. Navy’s fixed array system to detect large whales in the North Pacific by passive reception of their calls. PMEL had previously established a direct data link from five bottom-mounted arrays of the Navy SOSUS (Sound Surveillance System), via the Naval Oceanographic Processing Facility (NOPF) at Whidbey Island, Washington, to study low-level seafloor seismicity (Fox et al. 1994). PMEL subsequently provided NMML tapes of …


Circulation, Vol. 5, No. 4, Center For Coastal Physical Oceanography, Old Dominion University Jul 1998

Circulation, Vol. 5, No. 4, Center For Coastal Physical Oceanography, Old Dominion University

CCPO Circulation

Summer 1998 issue of CCPO Circulation featuring article "Bay Mouth Climatology"


Shoreline Change Modeling As A Tool In Coastal Environmental Management, Jorge Espinoza Amaguana Jul 1998

Shoreline Change Modeling As A Tool In Coastal Environmental Management, Jorge Espinoza Amaguana

Civil & Environmental Engineering Theses & Dissertations

The one-line numerical model GENESIS has been calibrated to evaluate its performance as a tool in providing insights into the physical components to manage the coastal environment. To calibrate the model, physical environmental data, literature research, and computer modeling methodologies were utilized in addressing the objectives of this thesis. The model was applied at three beaches of the Virginia Beach City with different man-made structures by using the actual field wave data for wave year J 997. Waves are the main environmental component affecting the coastal system; however, additional environmental data and the best engineering decision were used as model …


Title Index, Robert S. Means, Russell T. Clement Jun 1998

Title Index, Robert S. Means, Russell T. Clement

Pacific Studies

Title Index compiled by Robert S. Means and Russell T. Clement. Includes two issues per volume, Vols. 1–8; three issues per volume, Vols. 9–13; and four issues per volume, Vols. 14–20.


Cumulative Index, Volumes 1–20, Robert S. Means, Russell T. Clement Jun 1998

Cumulative Index, Volumes 1–20, Robert S. Means, Russell T. Clement

Pacific Studies

Cumulative Index compiled by Robert S. Means and Russell T. Clement. Includes two issues per volume, Vols. 1–8; three issues per volume, Vols. 9–13; and four issues per volume, Vols. 14–20.


Spring 1998, Nsu Oceanographic Center Apr 1998

Spring 1998, Nsu Oceanographic Center

Currents

No abstract provided.


Explosive Vapor Generation And Sampling In Conjunction With Ion Mobility Spectrometry, Saeed H. Almeer Apr 1998

Explosive Vapor Generation And Sampling In Conjunction With Ion Mobility Spectrometry, Saeed H. Almeer

Chemistry & Biochemistry Theses & Dissertations

The primary objective of this research is to develop an inexpensive and reliable method to generate vapor pulses of explosives using 2,4,6-trinitrotoluene TNTl for proof of concept. A secondary objective is to demonstrate the use of the vapor generator in various applications keeping in mind potential field scenarios involving explosives. A vapor generator/collector system was developed which gives reproducible pulses of TNT vapors at nanogram levels. The use of this technology was demonstrated in evaluating different surfaces for vapor adsorption of TNT in conjunction with ion mobility spectrometry as the primary analytical tool. Of the materials examined, Teflon was by …


Polarographic And Voltammetric Behavior Of Chloropyrifos And Its Determination In Some Water And Plant Samples, Ali Saeed Rashed Al-Maqbali Apr 1998

Polarographic And Voltammetric Behavior Of Chloropyrifos And Its Determination In Some Water And Plant Samples, Ali Saeed Rashed Al-Maqbali

Theses

Chlorpyrifos is a member of the organophosphorus class of insecticides. This class of insecticides has become one of the most widely under groups of pest control chemicals. Early organophosphorus compounds that were found to be efficacious for insect control and thus brought into widespread use, e.g. Chlorpyrifos, Parathion and Malathion. The broad-spectrum insecticidal properties of Chlorpyrifos indicated that it possessed substantial commercial potential to use against a wide variety of important arthropod pest via a number of commercialized products. Therefore, it is employed in a wide variety of agricultural and specially pest control scenarious and other arthropod pests threatening production …


Synthesis, Molecular Structure, And Reactivity Of Dinuclear Copper(Ii) Complexes With Carboxylate-Rich Coordination Environments, Richard C. Holz, John M. Bradshaw, Brian Bennett Mar 1998

Synthesis, Molecular Structure, And Reactivity Of Dinuclear Copper(Ii) Complexes With Carboxylate-Rich Coordination Environments, Richard C. Holz, John M. Bradshaw, Brian Bennett

Physics Faculty Research and Publications

The dinucleating ligand N,N‘-(2-hydroxy-5-methyl-1,3-xylylene)bis(N-(carboxymethyl)glycine) (CH3HXTA) has been used to synthesize the dinuclear Cu(II) bis(pyridine) complex Na[Cu2(CH3HXTA)(Py)2]·1.5(1,4-dioxane) (Na(1)):  triclinic space group P1̄ (a = 12.550(3) Å, b = 13.413(3) Å, c = 13.540(4) Å, α = 117.12(2)°, β = 104.70 (2)°, and γ = 92.13(2)°). The structure shows two distinct distorted square pyramidal Cu(II) centers with each Cu(II) ion bound by two carboxylate oxygen atoms, one amine nitrogen atom, a phenolate oxygen atom, and one pyridine nitrogen atom. The Cu--Cu separation is 3.531 Å, …


Trends. Injustice Through Justice Within The Ins And The Fbi: Fertile Territory For Information, Ibpp Editor Mar 1998

Trends. Injustice Through Justice Within The Ins And The Fbi: Fertile Territory For Information, Ibpp Editor

International Bulletin of Political Psychology

The author discusses the quest for justice, in which policymakers, legislators, and those who seek to influence them sometimes seek to effect mandatory sequences of adjudicative procedure upon allegations of misbehavior.


A Study On The Uptake And Voltammetric Determination Of Trace Heavy Metals In The Treated Wastewater In Abu-Dhabi Area, Salem Rashed Salem Al-Hassani Mar 1998

A Study On The Uptake And Voltammetric Determination Of Trace Heavy Metals In The Treated Wastewater In Abu-Dhabi Area, Salem Rashed Salem Al-Hassani

Theses

Wastewater reuse has a positive and negative environmental impacts and possibly it can have an important role to play in water resources management, as a substituent for freshwater in irrigation. However, the presence of the toxic heavy metals in domestic sewage and in industrial effluents discharge to sewers, wastewater can create unacceptable health and environmental risks. Therefore, the present work includes the determination of the toxic heavy metals in some treated wastewater samples collected from Abu-Dhabi area using polarographic and voltammetric techniques. Differential pulse polarography and anodic stripping voltammetry are well established techniques for trace determination of heavy metals content …


Values Of The Federal Public Lands, Douglas S. Kenney, Gabriel D. Carter, Joshua M. Kerstein, University Of Colorado Boulder. Natural Resources Law Center, University Of Colorado Boulder. School Of Law, Turner Foundation, William & Flora Hewlett Foundation Jan 1998

Values Of The Federal Public Lands, Douglas S. Kenney, Gabriel D. Carter, Joshua M. Kerstein, University Of Colorado Boulder. Natural Resources Law Center, University Of Colorado Boulder. School Of Law, Turner Foundation, William & Flora Hewlett Foundation

Books, Reports, and Studies

v, 158 p. ; 28 cm


Sounds Recorded From Baird's Beaked Whale, Berardius Bairdii, Stephen Dawson, Jay Barlow, Don Ljungblad Jan 1998

Sounds Recorded From Baird's Beaked Whale, Berardius Bairdii, Stephen Dawson, Jay Barlow, Don Ljungblad

United States Department of Commerce: Staff Publications

The vocal behavior of ziphiid whales is very poorly known. Free-swimming northern bottlenose whales, Hyperoodon ampullatus, have been recorded producing 3-16 kHz whistles and chirps (Winn et al. 1970; linear equipment frequency response 500 Hz-14 kHz) and 20-30 kHz ultrasonic clicks (Fauchner and Whitehead, unpublished data; equipment response to 35 kHz). A free-swimming mesoplodont beaked whale (probably Mesoplodon hertori) produced ultrasonic clicks (Ljungblad, unpublished data; equipment frequency response to 32 kHz). Sounds have been recorded from a stranded Blainville's beaked whale, Mesoplodon densirostris (Caldwell and Caldwell 1971; equipment frequency response 40 Hz-20 kHz) and a post-stranding, captive …


Integrating Security Into The Curriculum, Cynthia E. Irvine, Shiu-Kai Chin, Deborah Frincke Jan 1998

Integrating Security Into The Curriculum, Cynthia E. Irvine, Shiu-Kai Chin, Deborah Frincke

Electrical Engineering and Computer Science - All Scholarship

The number of skilled practitioners of computer security who are able to address the complexities of modern technology and are familiar with successful approaches to system security is very small. People want security but are faced with two difficulties. First, they do not know how to achieve it in the context of their enterprises. They may not even know of a way to translate organizational procedures into policies, much less implement a set of mechanisms to enforce those policies. Second, they have no way of knowing whether their chosen mechanisms are effective. The recent US Presidential Commission on Critical Infrastructure …


Characterization Of Petroleum Fog Oil And Vegetable Oil Smokes, Andrew Oliver Larouche Jan 1998

Characterization Of Petroleum Fog Oil And Vegetable Oil Smokes, Andrew Oliver Larouche

Masters Theses

"Deception and concealment to gain tactical advantage in the battlefield has been an integral part of warfare. Smoke has been a common tool used for signaling, concealment of troop movement and weapon deployment. U.S. Armed Forces have made use of smokes in an organized manner since the 1st world war. Since then various materials such as white phosphorus, zinc chloride, diesel fuel and petroleum oil aerosols have been used to obscure military targets. For the past thirty years fog oil (FO) a medium distillate has been extensively used by the U.S. Armed Forces for generation of obscurant smokes (OS). During …


Aegis Data Analysis And Reduction (Adar) In Support Of The Aegis Weapon System (Aws), June Bullard Gaines Jan 1998

Aegis Data Analysis And Reduction (Adar) In Support Of The Aegis Weapon System (Aws), June Bullard Gaines

Theses and Dissertations

The AEGIS Weapons System (AWS), part of the AEGIS Combat System (ACS), is an integral part of the defense system on U.S. Navy AEGIS-class ships. AEGIS Data Analysis and Reduction (ADAR) has been developed to assist in the evaluation of the AWS data. ADAR, along with the AWS and ACS, has evolved through the years to accommodate advances in technology and computer programming languages. Additionally, ADAR has evolved so that users located at sites other than the Naval Surface Warfare System Dahlgren Division (NSWCDD), Dahlgren, Virginia, can reduce tactical system data and perform data analysis using the reduced data.

This …


Volcanic Caves Of East Africa - An Overview, Jim W. Simons Jan 1998

Volcanic Caves Of East Africa - An Overview, Jim W. Simons

International Journal of Speleology

Numerous Tertiary to recent volcanoes are located in East Africa. Thus, much of the region is made up volcanic rock, which hosts the largest and greatest variety of East Africas caves. Exploration of volcanic caves has preoccupied members of Cave Exploration Group of East Africa (CEGEA) for the past 30 years. The various publications edited by CEGEA are in this respect a treasure troves of speleological information. In the present paper an overview on the most important volcanic caves and areas are shortly reported.


Overview Of The 8th International Symposium On Vulcanospeleology, William R. Halliday Jan 1998

Overview Of The 8th International Symposium On Vulcanospeleology, William R. Halliday

International Journal of Speleology

In February 1998 the 8h International Symposium on Vulcanospeleology was hosted by CEGEA (Cave Exploration Group of East Africa) in Nairobi, Kenya: it was attended by 16 scientists coming from 4 continents. Pre- and Post- Symposium excursions allowed the participants to have an overview on the most important and famous volcanic cave of that area.


A Representational Approach To Knowledge And Multiple Skill Levels For Broad Classes Of Computer Generated Forces, Larry J. Hutson Dec 1997

A Representational Approach To Knowledge And Multiple Skill Levels For Broad Classes Of Computer Generated Forces, Larry J. Hutson

Theses and Dissertations

Current computer generated forces (CGFs) in the 'synthetic battlespace', a training arena used by the military, exhibit several deficiencies. Human actors within the battlespace rapidly identify these CGFs and defeat them using unrealistic and potentially fatal tactics, reducing the overall effectiveness of this training arena. Simulators attached to the synthetic battlespace host local threat systems, leading to training inconsistencies when different simulators display the same threat at different levels of fidelity. Finally, current CGFs are engineered 'from the ground up', often without exploiting commonalities with other existing CGFs, increasing development (and ultimately training) costs. This thesis addresses these issues by …


A Modeling And Simulation Approach To Characterize Network Layer Internet Survivability, Leif S. King Dec 1997

A Modeling And Simulation Approach To Characterize Network Layer Internet Survivability, Leif S. King

Theses and Dissertations

The Air Force Core Competency of Information Superiority will be achieved in an age of decreasing AF manpower and corporate expertise. Increased AF reliance on COTS solutions, coupled with nearly ubiquitous points of entry to communication networks, create unique challenges in maintaining the Information Superiority edge. The protection of the internet is part of this equation. The internet supports the daily business traffic of the Air Force. Personnel, finance, and supply data flow through its routers. Controlling an adversary's access to our information systems, either the data, or the hardware and software that control the data and transform it into …


Historical Forces Shaping Americans' Perceptions Of Wildlife And Human-Wildlife Conflicts, Michael R. Conover, Denise O. Conover Oct 1997

Historical Forces Shaping Americans' Perceptions Of Wildlife And Human-Wildlife Conflicts, Michael R. Conover, Denise O. Conover

Wildlife Damage Management Conference

From colonial times until the 19th century, the dominant American view of wildlife and its management was dualistic—wildlife species were divided into good animals (those which had commercial value or could be eaten) or bad animals (those which threatened the colonists’ safety or food supply). Philosophically, early colonial Americans believed that the environment was to be manipulated for man’s purposes. Under the impact of modernization, Darwinian influence, over-exploitation of resources, and environmentally-conscious professionals, Americans in the late 19th century began to appreciate the recreational value of wildlife and to develop a more protective attitude toward it. Still the dichotomy between …


1997 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library Oct 1997

1997 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library

Scholars and Artists Bibliographies

This bibliography was created for the annual Friends of the Michael Schwartz Library Scholars and Artists Reception, recognizing scholarly and creative achievements of Cleveland State University faculty, staff and emeriti


Historical Forces Shaping Americans’ Perceptions Of Wildlife And Human-Wildlife Conflicts, Michael R. Conover, Denise O. Conover Oct 1997

Historical Forces Shaping Americans’ Perceptions Of Wildlife And Human-Wildlife Conflicts, Michael R. Conover, Denise O. Conover

Eastern Wildlife Damage Management Conference: 8th (1997)

From colonial times until the 19th century, the dominant American view of wildlife and its management was dualistic—wildlife species were divided into good animals (those which had commercial value or could be eaten) or bad animals (those which threatened the colonists’ safety or food supply). Philosophically, early colonial Americans believed that the environment was to be manipulated for man’s purposes. Under the impact of modernization, Darwinian influence, over-exploitation of resources, and environmentally-conscious professionals, Americans in the late 19th century began to appreciate the recreational value of wildlife and to develop a more protective attitude toward it. Still the dichotomy between …


Proceedings Of The Eighth Eastern Wildlife Damage Management Conference Oct 1997

Proceedings Of The Eighth Eastern Wildlife Damage Management Conference

Eastern Wildlife Damage Management Conference: 8th (1997)

Proceedings edited by James A. Parkhurst
Held October 16-19, 1997, Roanoke, Virginia

Contents


Historical Forces Shaping Americans’ Perceptions of Wildlife and Human-Wildlife Conflicts — Denise O. Conover and Michael R. Conover
Do You Have Your Skates On? — Gary San Julian

TECHNICAL SESSION #1 The Mass Media and Stakeholders’ Beliefs About Suburban Wildlife — Cynthia A. Loker, James Shanahan, and Daniel J. Decker
Aldo Leopold’s Land Ethic: Implications for Predator Management (abstract only) — Johnny Stowe
Private Nuisance Wildlife Control: Is There a Future in Kansas? (abstract only) — Charles Lee
Vertebrate Damage Management: The Future of an Evolving Profession …


Geology Of Niobrara State Park, Knox County, Nebraska, And Adjacent Areas, With A Brief History Of The Park, Gavins Point Dam, And Lewis And Clark Lake, Charles A. Flowerday, Robert F. Diffendal Jr., R. L. Skelly, F. G. Ethridge, D. A. Eversoll, David K. Watkins, B. E. Bailey Sep 1997

Geology Of Niobrara State Park, Knox County, Nebraska, And Adjacent Areas, With A Brief History Of The Park, Gavins Point Dam, And Lewis And Clark Lake, Charles A. Flowerday, Robert F. Diffendal Jr., R. L. Skelly, F. G. Ethridge, D. A. Eversoll, David K. Watkins, B. E. Bailey

Conservation and Survey Division: Faculty and Staff Publications

Location

Niobrara State Park is located in northwestern Knox County, Nebraska, just west of the town of Niobrara and on the west side of the Niobrara River. The present park was opened in the summer of 1987. Mostly north of Nebraska Highway 12, the site is hilly with bluffs overlooking the Missouri and Niobrara rivers. Excellent facilities include paved roads, cabins, an outdoor swimming pooi, hiking trails, picnic and camping sites, horseback riding trails, playgrounds, restrooms, a group lodge, and an interpretive shelter. Many vantage points in the park have beautiful views of the lower Niobrara Valley and the middle …


Parameter Estimation For Real Filtered Sinusoids, Daniel R. Zahirniak Sep 1997

Parameter Estimation For Real Filtered Sinusoids, Daniel R. Zahirniak

Theses and Dissertations

This research develops theoretical methods for parameter estimation of filtered, pulsed sinusoids in noise and demonstrates their effectiveness for Electronic Warfare EW applications. Within the context of stochastic modeling, a new linear model, parameterized by a set of Linear Prediction LP coefficients, is derived for estimating the frequencies of filtered sinusoids. This model is an improvement over previous modeling techniques since the effects of the filter and the coefficients upon the noise statistics are properly accounted for during model development. From this linear model, a relationship between LP coefficient estimation and Maximum Likelihood ML frequency estimation is derived and several …