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Articles 1771 - 1800 of 2555
Full-Text Articles in Physical Sciences and Mathematics
Optimisation Studies In A Batch Pharmaceutical Company, Sarah Fitzgerald
Optimisation Studies In A Batch Pharmaceutical Company, Sarah Fitzgerald
Theses
This thesis outlines a collaborative project between industry and academia based on a short term research contract.
In the past in Eli Lilly, process optimisation in a multi-purpose, modular building had been mainly confined to equipment commissioning and new product development. It was necessary to embark upon an exercise to develop an optimisation programme m order to meet the increased requirements and demands of the building. Increased market demands, through the introduction of over-the-counter (OTC) drugs, and the demand for cycle time reduction through the expiry of existing patents, made the need for optimisation inevitable.
The purpose of this thesis …
The Probe, Issue 196 – January 1999
The Probe, Issue 196 – January 1999
The Probe: Newsletter of the National Animal Damage Control Association
A History of the Wildlife Services Program -- Donald W. Hawthorne, Gary L. Nunley, and Vivian Prothro, USDA-APHIS-Wildlife Services, Oklahoma and Texas
Position Available: Postdoctoral Research Associate, U.S.D.A. Agricultural Research Service, Stuttgart National Aquaculture Research Center (SNARC) in Stuttgart, Arkansas.
Book Review: "Being Kind to Animal Pests: A No-Nonsense Guide to Humane Animal Control with Cage Traps" by Steve Meyer (self-published), Garrison, I A 1991. 132 pages.
Position Announcement: Post Graduate Researcher, Dept. of Wildlife, Fish and Conservation Biology, University of California, Davis
Scmidt Appointed to AVMA Panel on Euthanasia
Abstracts from the 5th Annual Conference of The Wildlife Society, …
Algebraic Geometric Codes Over Rings, Judy L. Walker
Algebraic Geometric Codes Over Rings, Judy L. Walker
Department of Mathematics: Faculty Publications
The techniques of algebraic geometry have been widely and successfully applied to the study of linear codes over finite fields since the early 1980’s. Recently, there has been an increased interest in the study of linear codes over finite rings. In this paper, we combine these two approaches to coding theory by introducing the study of algebraic geometric codes over rings. In addition to defining these new codes, we prove several results about their properties.
Processes Driving The Networked Economy, Amit P. Sheth, Will Van Der Aalst, I. Budak Arpinar
Processes Driving The Networked Economy, Amit P. Sheth, Will Van Der Aalst, I. Budak Arpinar
Kno.e.sis Publications
The authors propose that an organic workflow-process technology will power the evolution of information system architectures. The authors outline three likely stages of architectural evolution in the context of a networked economy and discuss critical gaps in the current technology with respect to their envisioned future.
Tws Wildlife Damage Management Working Group Newsletter: Winter 1999 - Volume 6(1)
Tws Wildlife Damage Management Working Group Newsletter: Winter 1999 - Volume 6(1)
TWS Wildlife Damage Management Working Group Newsletter
Forward -- Scott Craven; Next Edition Deadlines; 1999 Wildlife Damage Management Working Group Officers:; Tws 6th Annual Conference Working Group Sponsored Sessions; Proceedings Of The 18th Vertebrate Pest Conference Held March 2-5, 1998 In Costa Mesa, Ca Are Now Available; Announcing The Availability Of A New Publication And Video On Managing Urban Canada Geese; Wildlife Damage Management Around The World - Part 3; Application For Membership / The Wildlife Society
Tws Wildlife Damage Management Working Group Newsletter:Spring 1999 - Volume 6(2)
Tws Wildlife Damage Management Working Group Newsletter:Spring 1999 - Volume 6(2)
TWS Wildlife Damage Management Working Group Newsletter
Forward -- Scott Craven; 1999 Wildlife Damage Management Working Group Officers:; Contributors To This Issue; Wildlife Damage Management Around The World - Part 4; Wildlife Damage Management In Mexico; Next Edition Deadlines; Conditioned Food Avoidance For Predator Depredation Alert; Preliminary Program 6th Annual Conference * September 7-11, 1999; Tws 6th Annual Conference Working Group Sponsored Sessions; In Memory: William D. Fitzwater; Next Edition Deadlines; In Memoriam: Jack H. Berryman; A Wildlife Contraception Technical Review Committee; Call For Papers 19th Vertebrate Pest Conference; Application For Membership / The Wildlife Society
Tws Wildlife Damage Management Working Group Newsletter: Fall 1999 – Volume 6(4)
Tws Wildlife Damage Management Working Group Newsletter: Fall 1999 – Volume 6(4)
TWS Wildlife Damage Management Working Group Newsletter
Forward - Scott Craven; Minutes Of Tws’’ss Wildlife Damage Management Working Group 1999 Annual Meeting, Austin, Texas; A New Name And Format!!!!!!; 1999 Wildlife Damage Management Working Group Officers; Prospective Student; Wildlife Damage Conferences:: When,, Where,, And Why?; Stupid Pest Tricks -- ((Or What Your Best Extension Call Was All About)); The Electronics!!!!; WDAMAGE lListserv URBAN IPM llistserve; HDWILD listserv; FERALCAT Listserv The Prevention And Control Of Wildlife Damage Manual; NWCOA News ;Raccoon Roundworm Brochure; Beyond 2000:: Realiitiies Of Global Wolf Restoration;19th Vertebrate Pest Conference; Application for Membership / The Wildlife Society
Reform Of Preservice Science Education: An Example From A State-Supported University, R. Adams, G. L. Stringer
Reform Of Preservice Science Education: An Example From A State-Supported University, R. Adams, G. L. Stringer
Journal of Mathematics and Science: Collaborative Explorations
The ongoing movement to reform the teaching and learning of mathematics and science began as an effort targeting grades K-12. This movement, however, also has significant implications for institutions of higher education, especially in the area of teacher preparation. Northeast Louisiana University has utilized an extensive system of support, including vital National Science Foundation funding, to redesign its science curriculum for elementary education majors. Four courses featuring the content areas of biology, chemistry, geosciences, and physics and integrated with respect to content and methodology were collaboratively developed by education and science faculty. and were approved as requirements for all preservice …
Issues In Automated Distribution Of Processes Over The Networks, Alexey Morozov
Issues In Automated Distribution Of Processes Over The Networks, Alexey Morozov
Honors Theses
The main goal of this paper is t o survey the issues an application developer would have to resolve in producing a system that would be able to spread its computational load across several computers connected by a network. Before this can be done, a brief introduction to distributed and parallel computing is necessary.
Multi-Image Classification And Compression Using Vector Quantization, Beverly J. Thompson
Multi-Image Classification And Compression Using Vector Quantization, Beverly J. Thompson
Dissertations, Theses, and Masters Projects
Vector Quantization (VQ) is an image processing technique based on statistical clustering, and designed originally for image compression. In this dissertation, several methods for multi-image classification and compression based on a VQ design are presented. It is demonstrated that VQ can perform joint multi-image classification and compression by associating a class identifier with each multi-spectral signature codevector. We extend the Weighted Bayes Risk VQ (WBRVQ) method, previously used for single-component images, that explicitly incorporates a Bayes risk component into the distortion measure used in the VQ quantizer design and thereby permits a flexible trade-off between classification and compression priorities. In …
The Display Of Photographic-Quality Images On The Web: A Comparison Of Two Technologies, Chiang S. Jao, Daniel B. Hier, Steven U. Brint
The Display Of Photographic-Quality Images On The Web: A Comparison Of Two Technologies, Chiang S. Jao, Daniel B. Hier, Steven U. Brint
Chemistry Faculty Research & Creative Works
Downloading Medical Images on the Web Creates Certain Compromises. the Tradeoff is between Higher Resolution and Faster Download Times. as Resolution Increases, Download Times Increase. High-resolution (Photographic Quality) Electronic Images Can Potentially Play a Key Role in Medical Education and Patient Care. on the Internet, Images Are Typically Formatted as Graphics Interchange Format (GIF) or the Joint Photographic Experts Group (JPEG) Flies. However, These Formats Are Associated with Considerable Data Loss in Both Color Depth and Image Resolution. Furthermore, These Images Are Available in a Single Resolution and Have No Capability of Allowing the User to Adjust Resolution as Needed. …
Cost-Benefit Analysis Of Web Bag In A Web Warehouse, Sanjay Kumar Madria, Wee Keong Ng, Ee-Peng Lim, Sourav S. Bhowmick
Cost-Benefit Analysis Of Web Bag In A Web Warehouse, Sanjay Kumar Madria, Wee Keong Ng, Ee-Peng Lim, Sourav S. Bhowmick
Computer Science Faculty Research & Creative Works
Sets and bags are closely related structures and have been studied in relational databases. A bag is different from a set in that it is sensitive to the number of times an element occurs, while a set is not. In this paper, we introduce the concept of a Web bag in the context of a World Wide Web warehouse called WHOWEDA (WareHouse Of WEb DAta) which we are currently building. Informally, a Web bag is a Web table which allows multiple occurrences of identical Web types. A Web bag helps one to discover useful knowledge from a Web table, such …
Thermal Characterization Of Pmma Thin Films On Silica Using Modulated Differential Scanning Calorimetry, Crystal E. Porter, Frank D. Blum
Thermal Characterization Of Pmma Thin Films On Silica Using Modulated Differential Scanning Calorimetry, Crystal E. Porter, Frank D. Blum
Chemistry Faculty Research & Creative Works
The number of studies of thin polymer films has increased over recent years as technological processes incorporate the use of nanomaterials. An enhanced understanding of these films would enable us to predict bound-polymer behavior and thus improve the efficiency of processes and the quality of products. This is especially true as the thickness of the films approach molecular dimensions. The glass transition temperature of a polymer is one of the most important properties for characterization because it indicates how the polymer might perform macroscopically. when a polymer is confined, such as one the surface of a substrate, its behavior is …
Join Index Hierarchy: An Indexing Structure For Efficient Navigation In Object-Oriented Databases, Jiawei Han, Zhaohui Xie, Yongjian Fu
Join Index Hierarchy: An Indexing Structure For Efficient Navigation In Object-Oriented Databases, Jiawei Han, Zhaohui Xie, Yongjian Fu
Computer Science Faculty Research & Creative Works
A novel indexing structure - join index hierarchy - is proposed to handle the 'gotos on disk' problem in object-oriented query processing. The method constructs a hierarchy of join indices and transforms a sequence of pointer chasing operations into a simple search in an appropriate join index file, and thus accelerates navigation in object-oriented databases. The method extends the join index structure studied in relational and spatial databases, supports both forward and backward navigations among objects and classes, and localizes update propagations in the hierarchy. Our performance study shows that partial join index hierarchy outperforms several other indexing mechanisms in …
Soft X-Ray Photochemistry At The L₂,₃-Edges In K₃[Fe(Cn)₆], [Co(Acac)₃] And [Cp₂Fe][Bf₄], David Collison, Catherine David Garner, Catherine M. Mcgrath, J. Fred Willem Mosselmans, Mark D. Roper, Jon M. W Seddon, Ekkehard Sinn, Nigel A. Young
Soft X-Ray Photochemistry At The L₂,₃-Edges In K₃[Fe(Cn)₆], [Co(Acac)₃] And [Cp₂Fe][Bf₄], David Collison, Catherine David Garner, Catherine M. Mcgrath, J. Fred Willem Mosselmans, Mark D. Roper, Jon M. W Seddon, Ekkehard Sinn, Nigel A. Young
Chemistry Faculty Research & Creative Works
Soft X-ray photoreduction has been observed in K3[Fe(CN)6], [Co(acac)3] and [Cp2Fe][BF4].
Adaptive Information Filtering: Improvement Of The Matching Technique And Derivation Of The Evolutionary Algorithm, Daniel R. Tauritz, Ida G. Sprinkhuizen-Kuyper
Adaptive Information Filtering: Improvement Of The Matching Technique And Derivation Of The Evolutionary Algorithm, Daniel R. Tauritz, Ida G. Sprinkhuizen-Kuyper
Computer Science Faculty Research & Creative Works
Adaptive Information Filtering is concerned with filtering information streams in changing environments. The changes may occur both on the transmission side (the nature of the streams can change) and on the reception side (the interests of a user can change). The research described in this report details the progress made in a prototype Adaptive Information Filtering system based on weighted trigram analysis and evolutionary computation. The main improvements of the algorithms employed by the system concern the computation of the distance between weighted trigram vectors and a further analysis of the two-pool evolutionary algorithm. We tested our new prototype system …
A Model-Based Approach For Compression Of Fingerprint Images, Fikret Erçal, M. Gokmen, Ilker Ersoy
A Model-Based Approach For Compression Of Fingerprint Images, Fikret Erçal, M. Gokmen, Ilker Ersoy
Computer Science Faculty Research & Creative Works
We propose a new fingerprint image compression scheme based on the hybrid model of an image. Our scheme uses the essential steps of a typical automated fingerprint identification system (AFIS) such as enhancement, binarization and thinning to encode fingerprint images. The decoding process is based on reconstructing a hybrid surface by using the gray values on ridges and valleys. In this compression scheme, the ridge skeleton is coded efficiently by using differential chain codes. The valley skeleton is derived from the ridge skeleton and the gray values along the ridge and valley skeletons are encoded using the discrete cosine transform. …
Pi-Web Join In A Web Warehouse, Sanjay Kumar Madria, Wee Keong Ng, Ee-Peng Lim, Sourav S. Bhowmick
Pi-Web Join In A Web Warehouse, Sanjay Kumar Madria, Wee Keong Ng, Ee-Peng Lim, Sourav S. Bhowmick
Computer Science Faculty Research & Creative Works
With the enormous amount of data stored in the World Wide Web, it is increasingly important to design and develop powerful web warehousing tools. The key objective of our web warehousing project, called WHOWEDA (Warehouse of Web Data), is to design and implement a web warehouse that materializes and manages useful information from the web. We introduce the concept of Π-web join in the context of WHOWEDA. Pi-web join operator is a web information manipulation operator to combine relevant web information residing in two web tables. Informally, it is the combination of web join and web project operators which filter …
A Www Based Software Metrics Environment For Software Process Management And Software Product Quality Improvement, Xiaoqing Frank Liu, Ravi Viswanathan
A Www Based Software Metrics Environment For Software Process Management And Software Product Quality Improvement, Xiaoqing Frank Liu, Ravi Viswanathan
Computer Science Faculty Research & Creative Works
The software process needs to be continuously improved to develop high quality software. However, with increasing specialization in the workforce and decentralization in the workplace, software process planning, monitoring, analysis and dynamic tuning in a heterogeneous distributed environment becomes a challenge. We describe a tool which takes advantage of emerging Internet technology to implement a software metrics environment for software process management and software quality improvement. The tool uses a dimensional analytic model to visualize the software development process. The system offers facilities to monitor the status and quality attributes of projects being developed at multiple sites and on multiple …
Comparison Of Environmental Assessments Of Two Proposed Harbor Expansions On The Mississippi River, Richard S. Grippo, Bobby Bennett, Randel T. Cox
Comparison Of Environmental Assessments Of Two Proposed Harbor Expansions On The Mississippi River, Richard S. Grippo, Bobby Bennett, Randel T. Cox
Journal of the Arkansas Academy of Science
The National Environmental Policy Act of 1969 requires federally funded projects to be evaluated for environmental impact to determine if a complete environmental impact statement must be prepared. Such an environmental assessment must also be included in any feasibility study for harbor enlargement and bank stabilization measures under the Water Resources Development Act. Population increases, coupled with economic growth from increased agricultural and industrial productivity, have resulted in increased Mississippi River barge transportation needs for Arkansas and Missouri. We report here two such environmental assessments of planned harbor expansions of the New Madrid County and Pemiscot County ports in the …
Demonstrations For Children Of All Age- The Cork Canon, S. Thornton
Demonstrations For Children Of All Age- The Cork Canon, S. Thornton
Journal of Mathematics and Science: Collaborative Explorations
Demonstrations are one of the most useful techniques for teaching science to anyone, regardless of age. Demonstrations attract attention and normally make the observer want to learn more about what is happening. This paper reports on The Cork Cannon, one of the favorite demonstrations done in the demonstration road show, Phun Physics, that travels to schools within about 60 miles of Charlottesville. The Department of Physics and the Center for Science, Mathematics, and Engineering Education sponsor this demonstration show, which was seen by about 8000 persons during the last school year. Although quite simple, the Cork Cannon demonstration is rich …
Using Technology As A Vehicle To Appropriately Integrate Mathematics And Science Instruction For The Middle School, M. M. Mason, R. N. Giese
Using Technology As A Vehicle To Appropriately Integrate Mathematics And Science Instruction For The Middle School, M. M. Mason, R. N. Giese
Journal of Mathematics and Science: Collaborative Explorations
At the College of William and Mary, pre-service middle school science and mathematics teachers enroll in their respective methods courses taught in the same time period. Both instructors emphasize the importance of the content pedagogy unique to their disciplines in their individual courses such as strategies for teaching problem solving, computation, proportional reasoning, algebraic and geometric thinking in mathematics, and strategies for teaching students how to "investigate" or design and conduct experiments in science. However, the two classes come together for sessions in which they examine the relationship of the two disciplines and the proper role of technology, both graphing …
Maintaining Transitive Closure Of Graphs In Sql, Guozhu Dong, Leonid Libkin, Jianwen Su, Limsoon Wong
Maintaining Transitive Closure Of Graphs In Sql, Guozhu Dong, Leonid Libkin, Jianwen Su, Limsoon Wong
Kno.e.sis Publications
It is common knowledge that relational calculus and even SQL are not expressive enough to express recursive queries such as the transitive closure. In a real database system, one can overcome this problem by storing a graph together with its transitive closure and maintaining the latter whenever updates to the former occur. This leads to the concept of an incremental evaluation system, or IES.
Much is already known about the theory of IES but very little has been translated into practice. The purpose of this paper is to fill in this gap by providing a gentle introduction to and …
Infoharness: Managing Distributed, Heterogeneous Information, Kshitij Shah, Amit P. Sheth
Infoharness: Managing Distributed, Heterogeneous Information, Kshitij Shah, Amit P. Sheth
Kno.e.sis Publications
Today, important information is scattered in so many places, formats, and media, that getting the right information at the right time and place is an extremely difficult task. Developing a single software product, for example, includes the creation of documents ranging from the requirements specification and project schedules to marketing presentations, multimedia tutorials, and more. Each document may be created by a different person using a different tool, and each may be stored in a different place. InfoHarness is an information integration system, platform, and tool set that addresses these problems, managing huge amounts of heterogeneous information in a distributed …
Structure And Stability Of The Alx And Alx- Species, Gennady L. Gutsev, Puru Jena, Rodney J. Bartlett
Structure And Stability Of The Alx And Alx- Species, Gennady L. Gutsev, Puru Jena, Rodney J. Bartlett
Physics Publications
The electronic and geometrical structures of the ground and low-lying excited states of the diatomic AlX and AlX− series (X=H, Li, Be, B, C, N, O, and F) are calculated by the coupled-cluster method with all singles and doubles and noniterative inclusion of triples using a large atomic natural orbital basis. All the ground-state AlX molecules except for AlF can attach an additional electron and form ground-state AlX− anions. The ground-state AlBe−, AlB−, AlC−, AlN−, and AlO− anions possess excited states that are stable toward autodetachment of an extra electron; AlBe− also has a second excited state. Low-lying excited states …
Nebraska Summary 304: Massey Ferguson 6280 Diesel 32-Speed, Nebraska Tractor Test Lab
Nebraska Summary 304: Massey Ferguson 6280 Diesel 32-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
ABOUT THE TEST REPORT AND USE OF THE DATA
The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data.
EXPLANATION OF THE TEST PROCEDURES
Purpose
The purpose of …
The Gateway System: Uniform Web Based Access To Remote Resources, Tomasz Haupt, Erol Akarsu, Geoffrey C. Fox, Alexey Kalinichenko
The Gateway System: Uniform Web Based Access To Remote Resources, Tomasz Haupt, Erol Akarsu, Geoffrey C. Fox, Alexey Kalinichenko
Northeast Parallel Architecture Center
Exploiting our experience developing the WebFlow system, we designed the Gateway system to provide seamless and secure access to computational resources at ASC MSRC. The Gateway follows our commodity components strategy, and it is implemented as a modern three-tier system. Tier 1 is a high-level front-end for visual programming, steering, run-time data analysis and visualization, built on top of the Web and OO commodity standards. Distributed object-based, scalable, and reusable Web server and Object broker middleware forms Tier 2. Back-end services comprise Tier 3. In particular, access to high performance computational resources is provided by implementing the emerging standard for …
Enterprise Business Objects : Design And Implementation Of A Business Object Framework, Kai-Uwe Schafer
Enterprise Business Objects : Design And Implementation Of A Business Object Framework, Kai-Uwe Schafer
Theses
Software components representing business entities like customer or purchase order introduce a new way of Online Transaction Processing to business applications. Collaborating business objects allow to complete whole business processes as a single distributed transaction, instead of dividing it into queued steps, which sometimes even require user intervention. This IS due to the fact that business objects contain both business data and logic and that they incorporate multiple databases from different vendors and different geographic locations in a single transaction.
Business objects cannot be used as stand-alone components, but require a framework of services that manage persistence, concurrent transactions, and …
The Atomic Force Microscope In The Elucidation Of Leukocyte Abnormality, Derbrenn O'Connor
The Atomic Force Microscope In The Elucidation Of Leukocyte Abnormality, Derbrenn O'Connor
Theses
The aim of this project was to investigate the novel use of the atomic force microscope (AFM) as a technique in the elucidation of leukocyte abnormality. To this end, comparative AFM imaging and elasticity studies were performed on normal and myeloid leukaemic leukocytes.
Initially, an evaluation of techniques for the isolation of specific leukocyte (e.g. lymphocytes, granulocytes, etc.) populations from whole blood or leukocyte concentrates, was carried out. It was found that a silanised glass surface failed to select and immobilise a leukocyte population. However, centrifugation of whole blood in an Isopaque-ficoll gradient solution yielded a viable mixed leukocyte population …
Computer Based Methodologies For On-Line Scanning Force Microscopic Detection Of Immunological Binding Events, Patrick Joseph O'Mahony
Computer Based Methodologies For On-Line Scanning Force Microscopic Detection Of Immunological Binding Events, Patrick Joseph O'Mahony
Theses
The overall aim of this work was to develop computer based methodologies for the on-line scanning force microscopic detection of immunological binding events. To achieve this aim it was necessary to develop a rapid, high-resolution data acquisition system to digitise scanning force microscope (SFM) data on-line and then to develop an effective method for extracting the scanner induced background curvature from this data to reveal the nanoscale height binding events. Four techniques were investigated in terms of operational speed and performance accuracy; namely, polynomial interpolation; least squares approximation; real-time recursive least squares approximation; and wavelet approximation.
It was found that …