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2001

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Effects Of Landsat 5 Thematic Mapper And Landsat 7 Enhanced Thematic Mapper Plus Radiometric And Geometric Calibrations And Corrections On Landscape Characterization, James E. Vogelmann, Dennis Helder, Ron Morfitt, Michael J. Choate, James W. Merchant, Henry Bulley Jan 2001

Effects Of Landsat 5 Thematic Mapper And Landsat 7 Enhanced Thematic Mapper Plus Radiometric And Geometric Calibrations And Corrections On Landscape Characterization, James E. Vogelmann, Dennis Helder, Ron Morfitt, Michael J. Choate, James W. Merchant, Henry Bulley

United States Geological Survey: Staff Publications

The Thematic Mapper (TM) instruments on board Landsats 4 and 5 provide high-quality imagery appropriate for many different applications, including land cover mapping, landscape ecology, and change detection. Precise calibration was considered to be critical to the success of the Landsat 7 mission and, thus, issues of calibration were given high priority during the development of the Enhanced Thematic Mapper Plus (ETM+). Data sets from the Landsat 5 TM are not routinely corrected for a number of radiometric and geometric artifacts, including memory effect, gain/bias, and interfocal plane misalignment. In the current investigation, the effects of correcting vs. not correcting …

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2,3,7,8-Tetrachlorodibenzo-P-Dioxin Induces Apoptotic Cell Death And Cytochrome P4501a Expression In Developing Fundulus Heteroclitus Embryos, Barbara Holland Toomey, Susan Bello, Mark E. Hahn, Susannah Cantrell, Peggy Wright, Donald E. Tillitt, Richard T. Di Giulio Jan 2001

2,3,7,8-Tetrachlorodibenzo-P-Dioxin Induces Apoptotic Cell Death And Cytochrome P4501a Expression In Developing Fundulus Heteroclitus Embryos, Barbara Holland Toomey, Susan Bello, Mark E. Hahn, Susannah Cantrell, Peggy Wright, Donald E. Tillitt, Richard T. Di Giulio

United States Geological Survey: Staff Publications

Fundulus heteroclitus embryos were exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) during early development using nanoinjection or water bath exposure. TCDD caused developmental abnormalities that included hemorrhaging, loss of vascular integrity, edema, stunted development and death. The LC50 and LD50 of TCDD for Fundulus embryos were ~19.7 ± 9.5 pg TCDD/µl (water bath) and 0.25 ± 0.09 ng TCDD/g embryo (nanoinjection). To identify a possible cause for these developmental abnormalities we analyzed the effects of TCDD on apoptotic cell death and cytochrome P4501A (CYP1A) expression in the embryos. TCDD exposure increased apoptotic cell death in several tissues including brain, …

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The Spatial Variability Of Energy And Carbon Dioxide Fluxes At The Floor Of A Deciduous Forest, Kell B. Wilson, Tilden Meyers Jan 2001

The Spatial Variability Of Energy And Carbon Dioxide Fluxes At The Floor Of A Deciduous Forest, Kell B. Wilson, Tilden Meyers

United States Bureau of Land Management: Staff Publications

Fluxes of carbon dioxide, water and sensible heat were measured using three different eddy covariance systems above the forest floor of a closed deciduous forest (leaf area index ~ 6). The primary objective was to examine the representativeness of a single eddy covariance system in estimating soil respiration for time scales ranging from one-half hour to more than one week. Experiments were conducted in which the eddy covariance sensors were in one of three configurations: i) collocated, ii) separated horizontally or iii) separated vertically. A measure of the variation between the three systems (CV' 0, related to the coefficient of …

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Effect Of Scale On The Behavior Of Atrazine In Surface Waters, Paul Capel, Steven Larson Jan 2001

Effect Of Scale On The Behavior Of Atrazine In Surface Waters, Paul Capel, Steven Larson

United States Geological Survey: Staff Publications

Field runoff is an important transport mechanism by which agricultural pesticides, including atrazine, move into the hydrologic environment. Atrazine is chosen because it is widely used, is transported in runoff relatively easily, is widely observed in surface waters, and has relatively little loss in the stream network. Data on runoff of atrazine from experimental plot and field studies is combined with annual estimates of load in numerous streams and rivers, resulting in a data set with 408 observations that span 14 orders of magnitude in area. The load as a percent of use (LAPU) on an annual basis is the …

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Eastern Michigan University Undergraduate Catalog, 2001 - 2003, Office Of The Registrar Jan 2001

Eastern Michigan University Undergraduate Catalog, 2001 - 2003, Office Of The Registrar

Undergraduate Catalogs

No abstract provided.

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Wright State University Men's Soccer Media Guide 2001, Wright State University Athletics Jan 2001

Wright State University Men's Soccer Media Guide 2001, Wright State University Athletics

Athletics Publications

A media guide for Wright State University's 2001 Men's Soccer team. This guide includes photographs, player stats, game results, and records.

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Graduate School Of Computer And Information Sciences--Master Of Science Degree Programs 2001-2003, Nova Southeastern University Jan 2001

Graduate School Of Computer And Information Sciences--Master Of Science Degree Programs 2001-2003, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

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The Impact Of Lipophilic Linkers On The Adsorption And Styrene Adsolubilization Behavior On Nonionic Surfactants / By Yongqiang Tan, Yongqiang Tan Jan 2001

The Impact Of Lipophilic Linkers On The Adsorption And Styrene Adsolubilization Behavior On Nonionic Surfactants / By Yongqiang Tan, Yongqiang Tan

Electronic Theses and Dissertations

No abstract provided.

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A Study Of Rapid Curing Of Polyester Resin In A Heating Oven To Simulate Pultrusion Processing, Raghunandan Chaware Jan 2001

A Study Of Rapid Curing Of Polyester Resin In A Heating Oven To Simulate Pultrusion Processing, Raghunandan Chaware

Electronic Theses and Dissertations

No abstract provided.

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Multilayer Mim Inversion Of Aem Data: Theory And Field Example, Clyde J. Bergeron Jr, Juliette W. Ioup, Yan Wu, George E. Ioup, Kenneth W. Holladay Jan 2001

Multilayer Mim Inversion Of Aem Data: Theory And Field Example, Clyde J. Bergeron Jr, Juliette W. Ioup, Yan Wu, George E. Ioup, Kenneth W. Holladay

Physics Faculty Publications

This paper presents a multilayer generalization of an algebraic method of inverting frequency-doma in airborne active electromagnetic (AEM) data in terms of 1-D layered earth models. The processing of the AEM data, which includes a recalibration procedure, is also outlined. The inversion is applied to synthetic fields generated from a multilayer model which is intended to approximate a measured conductivity profile of the water column in the Gulf of Mexico and to measured AEM data from a survey of the Barataria Bay estuary region of the Louisiana Gulf of Mexico coast. The inversion results from the synthetic data are in …

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Design Of Peptides With, Α,Β-Dehydro-Residues: A Dipeptide With A Branched Β-Carbon Dehydro-Residue At The (I+1) Position, Methyl N-(Benzyloxycarbonyl)-Α,Β-Didehydrovalyl-L-Tryptophanate, Vijayaraghavan Rangachari, Pravindra Kumar, Sharmistha Dey, Tej P. Singh Jan 2001

Design Of Peptides With, Α,Β-Dehydro-Residues: A Dipeptide With A Branched Β-Carbon Dehydro-Residue At The (I+1) Position, Methyl N-(Benzyloxycarbonyl)-Α,Β-Didehydrovalyl-L-Tryptophanate, Vijayaraghavan Rangachari, Pravindra Kumar, Sharmistha Dey, Tej P. Singh

Faculty Publications

The structure of the title peptide, C25H27N3O5, has been determined and its conformation analysed. Values of the standard peptide torsion angles are φ(1) = -44.2 (3)°, ψ(1) = 135.9 (2)°, φ(2) = -141.6 (2)° and ψ(T/2) = 168.0 (2)°. The crystal structure is stabilized by an intermolecular hydrogen bond, with an N···O distance of 2.919 (3)Å, which is formed between screw-axis-related NH and CO groups of dehydrovaline residues.

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Studies In Competitive Adsolubilization, Jasper Lane Dickson Jan 2001

Studies In Competitive Adsolubilization, Jasper Lane Dickson

Electronic Theses and Dissertations

No abstract provided.

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Intellectual Property: Old Boundaries And New Frontiers, Richard A. Epstein Jan 2001

Intellectual Property: Old Boundaries And New Frontiers, Richard A. Epstein

Faculty Articles

It is a great honor for me to speak here this afternoon. The Harris Lecture Series is indeed one of the single most distinguished series of faculty lectures found in law schools throughout the country today, and I am proud to join the distinguished list of lecturers that have graced this podium in years past. The topic of this lecture is shrouded in ambiguity, for it travels under the name Intellectual Property: Old Boundaries and New Frontiers, which allows me more or less complete freedom to speak about the general field of intellectual property without violating the jurisdictional constraints imposed …

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Wavelet Applications In Method Of Moments / By Jin Yu, Jin Yu Jan 2001

Wavelet Applications In Method Of Moments / By Jin Yu, Jin Yu

Electronic Theses and Dissertations

No abstract provided.

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Synthetic Approach To Hexaoxa[6]Peristylanes. A Novel Ddq-Induced Oxidative Rearrangement, Douglas Arthur Otte Jan 2001

Synthetic Approach To Hexaoxa[6]Peristylanes. A Novel Ddq-Induced Oxidative Rearrangement, Douglas Arthur Otte

Honors Theses

The structural beauty and interesting bonding properties of polycyclic cage compounds have been a source of fascination to many chemists. In this work, progress toward the synthesis of large oxabowl systems, such as hexaoxa[6]peristylane and its derivative dipbenylhexaoxa[6)peristylane, is described. Thus, the adduct obtained from the cycloaddition of maleic anhydride and cyc!ooctatetraene is converted into key dicarbonyl intermediates. Subsequently, the ozonolysis of these intermediates is carried out in order to generate hexaoxa(6)peristylane as well as diphenylhexaoxa[6]peristylane. Molecular modeling studies, performed at the semi-empirical level, are also described.

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Isolation And Characterization Of Chromium- And Cobalt-Binding Peptides, Michael J. Jose Jan 2001

Isolation And Characterization Of Chromium- And Cobalt-Binding Peptides, Michael J. Jose

Honors Theses

Metal substitution has been proposed as an aid in the characterization of the structure of Low-Molecular-Weight Chromium-binding substance (LMWCr), which appears to be the biologically active chromium species. Preparations of bovine liver were diced and suspended in an isolation solution containing either a cobalt or a chromium salt. Peptide samples from these preparations were isolated by precipitation and centrifugation and purified by liquid chromatography. Several methods were used to analyze these samples, which may contain LMWCr or the cobalt-substituted form (LMWCo), in order to determine their purity, molecular weight (MW), and metal-to-peptide ratio. Methods used to determine MW included sodium …

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Local Search And Encoding Schemes For Soft Constraint Minimization Problems, Michael P. Moran, Weixiong Zhang Jan 2001

Local Search And Encoding Schemes For Soft Constraint Minimization Problems, Michael P. Moran, Weixiong Zhang

All Computer Science and Engineering Research

Soft constraint minimization problems (SCMPs) contain hard constraints that cannot be violated and soft constraints that may be violated but carry penalties if not satisfied. In this paper, we first extend local search, WalkSAT in particular, to SCMPs and study the existing SAT encoding schemes for SCMPs. We propose a general encoding method called k-encoding. We then investigate the effects of local search neiborhood structures introduced by encoding schemes and analyze the anytime performance of extended WalkSAT using different encoding methods. Our experimental results on various graph coloring problems show that a direct extension of WalkSAT is most effective, and …

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Fuzzycast: Media Broadcasting For Multiple Asynchronous Receivers, Marcel Waldvogel, Wei Deng, Ramaprabhu Janakiraman Jan 2001

Fuzzycast: Media Broadcasting For Multiple Asynchronous Receivers, Marcel Waldvogel, Wei Deng, Ramaprabhu Janakiraman

All Computer Science and Engineering Research

When using an on-demand media streaming system on top of a network with Multicast support, it is sometimes more efficient to use broadcast to distribute popular content. There has been a lot of research in broadcasting on-demand content to multiple, asynchronous receivers. In this paper, we propose a family of novel, practical techniques for broadcasting on-demand media, which achieve lowest known server/network bandwidth usage and I/O efficient client buffer management, while retaining the simplicity of a frame-based single channel scheme.

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A Proposal For A Scalable Internet Multicast Architecture, Sherlia Shi Jan 2001

A Proposal For A Scalable Internet Multicast Architecture, Sherlia Shi

All Computer Science and Engineering Research

We propose a new network and system architecture for multicast in the Internet. Our main objectives are to find a cost-effective way to scale to a large number of multicast groups whose members are geographically dispersed, and to enable small and less capable devices to participate in group communications. In order to preserve the efficiency of data distribution gained by multicast, while avoiding the control complexity previously exhibited by IP multicast, we propose the use of an overlay network for multicast services. We construct "virtual" multicast trees, which consist of unicast connections joining multicast servers in the network. These servers …

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Aggregated Hierarchical Multicast For Active Networks, Tilman Wolf, Sumi Y. Choi Jan 2001

Aggregated Hierarchical Multicast For Active Networks, Tilman Wolf, Sumi Y. Choi

All Computer Science and Engineering Research

Active Networking is the basis for a range of new and innovative applications that make use of computational resources inside network routers. One such application is Aggregated Hierarchical Multicast, which aims at implementing efficient many-to-many communication. In certain scenarios it is possible to transmit less accurate, aggregated data and thus achieve better scalability. Using Active Networks, this aggregation computation can be done transparently by network routers without end system support. We present how aggregated data streams can be structured in a hierarchical fashion to allow easy access of data at the desired aggregation level. We introduce two application examples to …

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Dres: Internet Resource Management Using Deferred Reservations, Samphel Norden Jan 2001

Dres: Internet Resource Management Using Deferred Reservations, Samphel Norden

All Computer Science and Engineering Research

In this proposal, we consider the problem of resource reservation for Integrated Services (IntServ) and Differentiated Services (DiffServ) networks. Current approaches for resource reservation in INtegrated Service Networks adopt an all-or-nothing approach, where partially acquired resources must be released if resources are not available at all routers on the chosen path. Furthermore, under high load, end-systems must retry requests repeatedly leading to inefficient allocation and increased traffic. We propose a new approach called Deferred REServation (DERS) that substantially improves performance (reduces the overall cell rejection probability and increases link utilization) over the all-or-nothing reservation approach. Call admissibility is increased by …

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A Distributed Annotation System, Robin Dowell Jan 2001

A Distributed Annotation System, Robin Dowell

All Computer Science and Engineering Research

One goal of any genome project is the elucidation of hte primary sequence of DNA contained within a given species. While the availability ot the primary sequence itself is valuable, it does not reach its full potential until i has been annotated. Generally defined, annotation is descriptive information or commentary added to text, in this case genomic sequence. Without a mechanism for collecting, recording, and disseminating community-based annotation, a valuable source of information is severely diminshed. In this report I outline the design and implementation of a Distributed Annotation System (DAS). DAS allowes sequence annotations to be decentralized among multiple …

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Layered Protocol Wrappers For Internet Packet Processing In Reconfigurable Hardware, Florian Braun, John Lockwood, Marcel Waldvogel Jan 2001

Layered Protocol Wrappers For Internet Packet Processing In Reconfigurable Hardware, Florian Braun, John Lockwood, Marcel Waldvogel

All Computer Science and Engineering Research

The ongoing increases of line speed in the Internet backbone combined with the need for increased functionality of network devices presents a major challenge. These demands call for the use of reprogrammable hardware to provide the required flexible, high-speed functionality, at all network layers. The Field Programmable Port Extender (FPX) provides such an environment for development of networking components in reprogrammable hardware. We present a framework to streamline and simplify networking applications that process ATM cells, AAL5 frames, Internet Protocol (IP) packets and UDP datagrams directly in hardware.

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Phase Transitions And Backbones Of Constraint Minimization Problems, Weixiong Zhang Jan 2001

Phase Transitions And Backbones Of Constraint Minimization Problems, Weixiong Zhang

All Computer Science and Engineering Research

Many real-world problems involve constraints that cannot be all satisfied. The goal toward an overconstrained problem is to find solutions minimizing the total number of constraints violated. We call such a problem constraint minimization problem (CMP). We study the behavior of the phase transitions and backbones of CMP. We first investigate the relationship between the phase transitions of Boolean satisfiability, or precisely 3-SAT (a well-studied NP-complete decision problem), and the phase transitions of MAX 3-SAT (an NP-hard optimization problem). To bridge the gap between the easy-hard-easy phase transitions of 3-SAT, in which solutions of bounded quality, e.g., solutions with at …

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Routing In Overlay Multicast Networks, Sherlia Y. Shi, Jonathan S. Turner Jan 2001

Routing In Overlay Multicast Networks, Sherlia Y. Shi, Jonathan S. Turner

All Computer Science and Engineering Research

Multicast servises can be provided either as a basic network service or as an application-layer service. Higher level multicast implementations often provide more sophisticated features, and since they don't require network supoprt for multicast, they can provide multicast services, where no network layer support is available. Overlay multicast networks offer an intermediate option, potentially combining the flexibility and advanced features of application layer multicast with the greater efficiency of network layer multicast. Overlay multicast networks play an important role in the Internet. Indeed, since Internet Service Providers have been slow to enable IP multicast in their networks, Internet multicast is …

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Evaluation Of Motion-Jpeg2000 For Video Processing, Wei Yu, Ruibiao Qiu, Jason Fritts Jan 2001

Evaluation Of Motion-Jpeg2000 For Video Processing, Wei Yu, Ruibiao Qiu, Jason Fritts

All Computer Science and Engineering Research

The new ISO/ITU-T standard for still image coding, JPEG2000, has been shown to provide superior coding efficiency to the previous standard, JPEG. Because of the superb performance of JPEG2000, it is reasonable to argue that Motion-JPEG2000, the corresponding moving picture coding standard of JPEG2000, has equally outstanding performance. However, there has not been a sufficient performance evaluation of Motion-JPEG2000. To this end, we have studied the potential of Motion-JPEG2000 for video processing. Our experiments show that Motion-JPEG2000 provides high compression performance, strong error resilience, and good perceptual image quality. Together with a rich set of features inherited from JPEG2000, Motion-JPEG2000 …

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Placing Servers For Session-Oriented Services, Sumi Choi, Yuval Shavitt Jan 2001

Placing Servers For Session-Oriented Services, Sumi Choi, Yuval Shavitt

All Computer Science and Engineering Research

The provisioning of dynamic forms of services is becoming the main stream of today's network. In this paper, we focus on services assisted by network servers and different forms of associated sessions. We identify two types of services: transparent, where the session is unaware of the server location, and configurable, where the sessions need to be configured to use their closest server. For both types we formalize the problem of optimally placing network servers and introduce approximated solutions. We present simulation result of approximations and heuristics. We also solve the location problem optimally for a special topology. We show, through …

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Embedding Images In Non-Flat Spaces, Robert Pless Jan 2001

Embedding Images In Non-Flat Spaces, Robert Pless

All Computer Science and Engineering Research

Multi-dimensional scaling is an analysis tool which transforms pairwise distances between points to an embedding of points in space which are consistent with those distances. Two recent techniques in statistical patter recognition, locally linear embedding (LLE) and Isomap, give a mechanism for finding the structure underlying point sets for which comparisons or distances are only meaningful between nearby points. We give a direct method to extend the embedding algorithm to new topologies, finding the optimal embedding of points whose geodesic distance on a surface mathes the given pairwise distance measurements. Surfaces considered include spheres, cylinders, tori, and their higher dimensional …

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Relationship Between Two Generalized Images For Discrete And Differential Camera Motions, Robert Pless Jan 2001

Relationship Between Two Generalized Images For Discrete And Differential Camera Motions, Robert Pless

All Computer Science and Engineering Research

The recent popularity of catadioptic and multi-camera imaging systems indicates a need to create formal models for general, non-perspective camera geometries. Development of algorithmic tools for interpreting images from a generalized camera model will lead to a better understanding of how to design camera systems for particular tasks. Here we define the corollary to epi-polar constraints for standard cameras - the relationship between two images of a scene taken by generalized cameras from viewpoints related by discrete or differential motions.

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Formal Specification And Design Of Mobile Systems, Gruia-Catalin Roman, Christine Julien, Qingfeng Huang Jan 2001

Formal Specification And Design Of Mobile Systems, Gruia-Catalin Roman, Christine Julien, Qingfeng Huang

All Computer Science and Engineering Research

Termination detection, a classical problem in distributed computing, is revisited in the new setting provided by the emerging mobile computing technology. A simple solution tailored for use in ad hoc networks is employed as a vehicle for demonstrating the applicability of formal requirements and design strategies to the new field of mobile computing. The approach is based on well understood techniquest in specification refinement, but the methodology is tailored to mobile applications and helps designers address novel concerns such as the mobility of hosts, transient interactions, and specific coordination constructs. The proof logic and programming notation of Mobile UNITY provide …

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