Digital Commons Network^™

Processing Storage, Retrieval And Analysis Of Resource Data In The Eighties, Ralph Bernstein

LARS Symposia

No abstract provided.

Context Distribution Estimation For Contextual Classification Of Multispectral Image Data, James C. Tilton, Philip H. Swain, Stephen B. Vardeman

LARS Symposia

A classification algorithm incorporating contextual information in a general, statistical manner is presented. Methods are investigated for obtaining adequate estimates of the context distribution (a statistical characterization of context) upon which the classification algorithm depends. Finally, a method of estimating optimal algorithm parameters prior to performing preliminary classifications is explored.

Soil Taxometrics: Results From A West-German Data Bank, J. Lamp

LARS Symposia

The terms of general soil classification systems serve within soil information systems not only as main criteria for storing and cross referencing data, The classes or taxons of soil classification may also be checked and improved by taxometric evaluations on data of the information system itself.

By means of a soil data bank of about 2000 profiles and 10,000 horizons, which were collected from West-German institutions of soil survey, results were evaluated by various taxometric methods.

Temporal Analysis Of Landsat Data For Land Use Mapping, J. A. Shields, C. Goodfellow

LARS Symposia

Landsat digital data over a period of seven years was used to study the agricultural land use systems of an area in Central Saskatchewan. The study area is situated on the second step of the Great Plains region about 300 km north of the Canada/U.S. border. It is dominated by Dark Brown and Black Chernozemic Soils on hummocky and undulating morainal materials, although there is a small island of Gray Luvisolic Soils within the area. Local relief ranges from 2 m to 30 m with slope gradients from 2 to 32%.

General land use was mapped by township for the …

The Lulea Image Processing System (Lips) - A Versatile Approach To Earth Resources Data Processing, Hans Hauska

LARS Symposia

The Lulea Image Processing System is presented in this paper. Some fundamental system design criteria are discussed together with some aspects of the actual implementation. The system is structured in two levels in form of a pseudo-overlay. The layout of the Image Data File is recognized as an integral part of system architecture. A number of major processing tasks discussed in detail.

The Auxiliary Use Of Landsat Data In Estimating Crop Yields: Results Of 1978 Iowa Feasibility Study, Richard Sigman, Greg Larsen

LARS Symposia

Each year from late May to early June, the Economics, Statistics, and Cooperatives Service (ESCS) of the U.S. Department of Agriculture conducts a nationwide June Enumerative Survey (JES), consisting of interviews with farm operators in randomly selected area-sample units called segments, which are typically one square mile in size. Later in the growing season, crop yields are estimated from biological measurements conducted in small plots of land only a few square meters in size, which have been selected by two-stage subsampling from JES segments. The first stage of the subsampling is for fields planted to the crop of interest; second-stage …

Development Of Spectral Maps For Soil Vegetation Mapping In The Big Desert Area, Idaho, L. J. Lund, R. A. Weismiller, S. J. Kirstof, F. R. Kirschner, D. Harrison

LARS Symposia

Spectral maps were developed using unsupervised digital classification techniques for 1.5 million acres in Idaho to aid the USDA/Soil Conservation Service in preparing a third order soil survey. The area of interest is roughly bounded by 112°45' and 114°00' west and 43°00' and 43°45' north. Mixed alluvium with minor amounts of loess and cinders are the principal soil parent materials of the area which is characterized by rough lava flows, cinder cones, mountains, alluvial fans and valleys of low relief. The soil temperature regime is frigid and the soil moisture regimes vary from aridic to xeric. The native vegetation consists …

Stratification Of Landsat Data By Uniformity Productivity Of Soils, Jane Schubert, Pak Chagarlamudi, Jack A. Shields, Alex R. Mack

LARS Symposia

The goal of this study was to develop and verify methods to use Landsat data for mapping and quantifying the productivity of soil areas on which the annual yields of spring wheat exposed to the same weather conditions are generally different.

The study was done in two parts. First, a calibration study was done to determine which features visible on Landsat imagery were associated with different relative productivities. Then, in a two-part accuracy verification study, Uniform Productivity Area (UPA) boundaries were drawn on three ma sheets 1:250,000 Canadian National Topographic System) and the relative productivity of each UPA within 25 …

Field Research On The Spectral Properties Of Crops And Soils, M. E. Bauer, L. L. Biehl, B. F. Robinson

LARS Technical Reports

This report describes the experiment design, data acquisition and preprocessing, data base management, analysis results and development of instrumentation for the AgRISTARS Supporting Research Project, Field Research task. It reports results of several investigations on the spectral reflectance of corn and soybean canopies as influenced by cultural practices, development stage and nitrogen nutrition. Results of analyses of the spectral properties of crop canopies as a function of canopy geometry, row orientation, sensor view angle and solar illumination angle are presented. The objectives, experiment designs and data acquired in 1980 for field research experiments are described. The development and performance characteristics …

An Assessment Of Landsat Data Acquisition History On Identification And Area Estimation Of Corn And Soybeans, Marilyn M. Hixson, Marvin E. Bauer, Donna K. Scholz

LARS Technical Reports

During the past decade, numerous studies have demonstrated the potential of satellite remote sensing for providing accurate and timely crop area information. This study assessed the impact of Landsat data acquisition history on classification and area estimation accuracy of corn and soybeans.

Multitemporally registered Landsat MSS data from four acquisitions during the 1978 growing season were used in classification of eight sample segments in the U.S. Corn Belt. The results illustrate the importance of selecting Landsat acquisitions based on spectral differences in crops at certain growth stages.

Additives To Control Slaking In Compacted Shales : Interim Report, Mariappa Surendra

JTRP Technical Reports

No abstract provided.

One-On-One, Iowa City Style: Fifty Years Of Individualized Writing Instruction, Lou Kelly

The Writing Center Journal

No abstract provided.

From The Editors, Lil Brannon, Stephen M. North

The Writing Center Journal

No abstract provided.

Hamlet, Polonius, And The Writing Center, Thomas Nash

The Writing Center Journal

No abstract provided.

Beyond Freshman Comp: Expanded Uses Of The Writing Lab, Muriel Harris, Kathleen Blake Yancey

The Writing Center Journal

No abstract provided.

Measuring And Calculating Queue Length Distributions, Jeffrey P. Buzen, Peter J. Denning

Department of Computer Science Technical Reports

No abstract provided.

Solution Of General Queueing Networks Using Norton's Theorem, Stephen Tolopka

Department of Computer Science Technical Reports

No abstract provided.

1979 Ellpack Workshop, Progress Report And A Proposal For A 2-Year Program, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.

Ellpack Network Documentation Preliminary Version, Ron Boisvert, John R. Rice, John Warner

Department of Computer Science Technical Reports

No abstract provided.

To Cooperate Or Not To Cooperate, Michael W. Hill

Proceedings of the IATUL Conferences

Cooperation on practical projects, as distinct from that on intellectual ones, poses a number of managerial and administrative problems which are not encountered in in-house projects or work contracted out to agencies. If, therefore, the project is to be successful, it is necessary to identify all these additional factors before starting and to ensure that the requirements of each will be satisfactorily met. The longer the project is likely to last, the more important it is to be sure that it is designed to cope with factors such as defection of one of the partners or the need to adapt …

The Compilation Of A Personal Documentation System, R. Kriek

Proceedings of the IATUL Conferences

This paper describes a course of instruction in the compilation of a personal documentation system, at Twente University of Technology, the Netherlands. Students are introduced to indexing with key words, thesaurus construction, bibliographical description, and the use of inverted files. They are taught the use of the 'uniterm card system'. The advantages of automation of a personal documentaion system are discussed.

The Swedish Libris System, Lennart Gardvall

Proceedings of the IATUL Conferences

The ADP-system LIBRIS-II is described with emphasis on its network structure. The connection of 10 libraries within the organization under the National Swedish Board of Universities and Colleges (UHÄ) and four other libraries is outlined. The coverage of acquired literature in the connected llbrarles is discussed, as well as the extension of the coverage which is achieved by a decentralized reporting of accessions in a large number of other Swedish research and special libraries to the Royal Library which submits centralized input to the system. Three possible models are presented how to offer access for searches to LIBRIS outside the …

Cooperation Between The Establishments Of Higher Education In Lausanne, T. J. Tanzer

Proceedings of the IATUL Conferences

The city of Lausanne houses two Establishments of Higher Education, the University of Lausanne and the Swiss Federal Institute of Technology of Lausanne.

While the university has a broader spectrum of subjects taught, certain, notably mathematics and the exact sciences, are taught at both. The boards of governors have mandated a study of the possibility of cooperation by the two libraries. The paper presents the exact situation in Lausanne, the implications for immediate close cooperation under an orthodox system and indicates where closer cooperation could be achieved with an automated system.

Dobis At The Bibliocentre, Doreen E. Carpenter

Proceedings of the IATUL Conferences

The growth of the bibliocentre is traced from its origin in 1966 through to the selection, installation of the real time on-line DOBIS system, supported by internally designed and written programmes to load an existing database and produce output products. The methodology adopted for converting the database of approximately 400,000 records into a DOBIS format is described.

The role of DOBIS in achieving a high degree of efficiency to the workflow of the bibliocentre is examined in detail. The benefits, both to the network of users and the bibliocentre operation, resulting from DOBIS operating in-house, are highlighted. The versatility of …

Cooperation As A Solution To The Problems Of European Documentation, Mike Hopkins

Proceedings of the IATUL Conferences

• brief introduction to the European Documentation Centre (EDC) system established in member countries of the European Communities and elsewhere
• problems concerning the administration of such EDCs in the United Kingdom
• problems concerning the bibliographical characteristics of European Community documentation and its exploitation
• local cooperative efforts in the United Kingdom
• regional groups
• newsletter
• guides
• national cooperative efforts in the United Kingdom
• professional courses
• commission activities
• library association
• working party

The Experimental Scientist And His Literature Searches, D. A. A. Mossel

Proceedings of the IATUL Conferences

Guest Paper

Contributions To The Theory Of Integration Of Special Libraries, Jozsef Zsidai

Proceedings of the IATUL Conferences

Since 1971 the Central Library of Technical University for Heavy Industry /Miskolc/ has launched a large scale activity to achieve co-operation and integration on the following fields: the adaptation of the METADEX /USA/ computerized metallurgical information system in Hungary; the acquisition of the special literature in co-operation with the four large chemical works of the region; the establishment of a regional translation office.

The work is very fruitful on all the three mentioned field and our experience that have accumulated in the course of our work are suitable to draw theoretical conclusions that refer to the general rules of co-operation. …

Cooperation In Library And Information Service - The Role Of Intergovernmental Organisations, Elin Tornudd

Proceedings of the IATUL Conferences

Numerous intergovernmental organisations (IGO) sponsor programs in the library and information field. These programs proliferate to the extent that there is a danger of duplication of efforts. Especially in small countries participation has to be limited to programs of highest priority, because a limited number of senior specialists cannot take the responsibility for countless projects.

The IGO programs in library and information service are reviewed briefly with special reference to those of interest to technological university libraries. The following organisations are mentioned:

• 1. The United Nations Family
• 1.1 UNESCO, UN Educational, Scientific, and Cultural Organisation
• 1.2 ECE, UN Economic Commission …

Is Cooperation A Good Thing?, Maurice B. Line

Proceedings of the IATUL Conferences

Instead of assuming that cooperation is desirabie and then considering how to cooperate, librarians should analyse their aims and functions and consider how cooperative approaches compare for cost-effectiveness with 'going it alone' and dependence on a central service.

The acquisition function of libraries must be largely fulfilled by local provision. This must be supported from other sources, but cooperative acquisition schemes are expensive to administer and less effective than central provision or state-funded concentration of resources on a few libraries.

It has yet to be proved that cataloguing and classification in most libraries need be detailed, or that libraries cannot …

Presentation Of Twente Technological University Library, G. A. Hamel

Proceedings of the IATUL Conferences

No abstract provided.