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A self-organizing scale-sensitive neural network
Three adaptive rules are combined in a neural network simulation: an anti-Hebbian inhibitory learning rule, a variant of a Hebbian excitatory learning rule, and a Weber law neuron-growth rule. The neuron-growth rule permits the network to learn and classify input patterns despite variations in their spatial scale. The inhibitory learning rule permi....
Authors:Marshall;J.A.Publisher:Neural Networks;1990.;1990 IJCNN International Joint Conference onConference Date:17-21 June 1990ISSN:Total Page:3 vol. (908+984+974)
Techniques for user testing of the 68882
The steps required to develop a test program for the Motorola 68882 floating-point coprocessor, are documented, using only functional techniques. The resulting test program for the 68882 executes 550000 clock cycles and tests 2700 instructions. The functional test method, LEAD, is ideal for the user, since the program generates vectors directly fro....
Authors:Marshall;M.Publisher:Test Conference;1988. Proceedings. New Frontiers in Testing;InternationalConference Date:12-14 Sept. 1988ISSN:0-8186-0870-6Total Page:xxx+1005
Approaching the desktop supercomputer
The history of desktop supercomputing, the current status of the technology, and the problems still remaining to be solved are examined. Desktop computers fall into two major categories, workstations and PCs. Workstations essentially can be viewed as large-scale computing systems cut down in size and capability to yield a useful desktop package. Th....
Authors:Marshall;T.G.Publisher:Compcon Spring '90. Intellectual Leverage. Digest of Papers. Thirty-Fifth IEEE Computer Society International Conference.Conference Date:26 Feb.-2 March 1990ISSN:0-8186-2028-5Total Page:xvi+644
A hardware and software architectural model for the manipulation of genetic databases
Summary form only given. The authors describe a hardware and software architectural model for the characterization and analysis of genomes of select organisms. The data for research is obtained by semantically relating existing heterogeneous genetic databases. The authors have developed an architectural model based on associative memory structures ....
Authors:Marshall;R.G.Publisher:Parallel and Distributed Information Systems;1991.;Proceedings of the First International Conference onConference Date:4-6 Dec. 1991ISSN:0-8186-2295-4Total Page:xiii+292
A system optimization approach to FDMA loadings
The author investigates an approach to maximize frequency division multiple access (FDMA) transponder performance by simultaneously optimizing transponder gain and operating point and uplink signal powers under the assumption that the system is not bandwidth limited. The methodology used, including the assumptions and approximations made, is descri....
Authors:Marshall;J.Publisher:Military Communications Conference;1991. MILCOM '91;Conference Record;Military Communications in a Changing World.;IEEEConference Date:4-7 Nov. 1991ISSN:0-87942-691-8Total Page:3 vol. xxxvi+1290
On the representation and manipulation of integrated genomic databases
A software architectural model and a set of research tools are being developed to aid in the characterization and analyze chromosomes and genomes of select model organisms using existing genetic information from several well-known genetic databases. A small database containing information on one human chromosome and several selected model organisms....
Authors:Marshall;R.G.Publisher:Systems;Man;and Cybernetics;1991. 'Decision Aiding for Complex Systems;Conference Proceedings.;1991 IEEE International Conference onConference Date:13-16 Oct. 1991ISSN:0-7803-0233-8Total Page:3 vol. xvi+2120
Development of perceptual context-sensitivity in unsupervised neural networks: parsing, grouping, and segmentation
A simple self-organizing neural network model, called an EXIN network, that learns to process sensory information in a context-sensitive manner is described. Exposure to a perceptual environment during a developmental period configures the network to perform appropriate organization of sensory data. An anti-Hebbian learning rule causes some lateral....
Authors:Marshall;J.A.Publisher:Neural Networks;1992. IJCNN.;International Joint Conference onConference Date:7-11 June 1992ISSN:0-7803-0559-0Total Page:4 vol. (xii+962+xiii
Operating power ICs at 200 degrees
Discrete semiconductor devices rated to operate up to 200 degrees C are discussed. It is shown that some aspects of the design used to achieve high-temperature fail-safe operation have resulted in increased device die area, in particular, the stringent layout rules and use of bipolar structures. One of the few outstanding reliability problems for o....
Authors:Marshall;A.Publisher:Power Electronics Specialists Conference;1992. PESC '92 Record.;23rd Annual IEEEConference Date:29 June-3 July 1992ISSN:0-7803-0695-3Total Page:2 vol. xxxv+1450
Scanning electron microscopy characterization of connector failures
The characterization of connector failures by scanning electron microscopy/energy dispersive X-ray (SEM/EDX) is described. The advantages of SEM/EDX over optical inspection are discussed. Three types of failures are covered: (1) migration of base metal to the surface, leading to corrosion at the contact area; and (2) fretting corrosion; (3) microcr....
Authors:Marshall;J.L.Publisher:Electronics Components Conference;1988.;Proceedings of the 38thConference Date:9-11 May 1988ISSN:Total Page:x+664
A multiple-use audio-engineering laboratory
After describing the objectives of the audio engineering laboratory at Villanova University, the author discusses a major renovation carried out to support a multi-use laboratory program. Specific examples of uses are given, especially those affected since the renovation. Possible directions for future development are noted with the view that such ....
Authors:Marshall;J.L.Publisher:Frontiers in Education Conference;1988.;ProceedingsConference Date:22-25 Oct. 1988ISSN:Total Page:xx+500
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