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  • Immunocytochemistry  (203)
  • optimization
  • Springer  (236)
  • American Chemical Society (ACS)
  • eLife Sciences Publications
  • 2020-2024
  • 1985-1989  (234)
  • 1965-1969  (2)
  • 1935-1939
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  • 1
    Digitale Medien
    Digitale Medien
    Optimization using spreadsheets on a microcomputer (1985)
    Springer
    Annals of operations research 5 (1985), S. 599-612 
    Details
    ISSN: 1572-9338
    Schlagwort(e): Microcomputers ; spreadsheets ; linear programming ; optimization ; software
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik , Wirtschaftswissenschaften
    Notizen: Abstract This paper discusses the advantages of using spreadsheets for problem specification and report generation in optimization projects. It summarizes some of the mathematical programming software which is compatible with popular spreadsheets. A small production planning problem is used to illustrate the steps in input and processing of the results. Two programs are compared in detail.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02023613
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Analysis of effective service time with age dependent interruptions and its application to optimal rollback policy for database management (1989)
    Springer
    Queueing systems 4 (1989), S. 193-212 
    Details
    ISSN: 1572-9443
    Schlagwort(e): Effective service time ; age dependent service interruptions ; database systems ; failures ; recovery ; rollback ; checkpoints ; optimization
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik
    Notizen: Abstract A stochastic model is developed describing a service system subject to inhomogeneous Poisson interruptions with age dependent interruption periods. By studying the probabilistic flow of the underlying multivariate Markov process, the Laplace transform of the effective service time is explicitly obtained. For general renewal interruptions, only the expected effective service time is derived. As an application, an optimal checkpoint policy is examined for database management. It is shown that an optimal policy maximizing the ergodic availability of the database is to implement a checkpoint as soon as the cumulative uptime of the database reaches a prespecified constantk *. A computational procedure is then developed for findingk * and numerical results are exhibited.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02100266
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    A summary of OR/MS software on microcomputers (1985)
    Springer
    Annals of operations research 5 (1985), S. 613-630 
    Details
    ISSN: 1572-9338
    Schlagwort(e): Microcomputers ; computer programs ; mathematical programming ; software ; optimization ; management science ; operations research
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik , Wirtschaftswissenschaften
    Notizen: Abstract This paper provides a summary of some OR/MS software for microcomputers. Lists of packages in many management science techniques are included. A bibliography of other papers is also included. We also summarize the general features of packages in each category. Finally, we mention a few sources to help the reader keep up with the developments in this area.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02023614
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  • 4
    Digitale Medien
    Digitale Medien
    Response surface methodology as a means for efficient data storage and retrieval (1987)
    Springer
    Annals of operations research 8 (1987), S. 351-362 
    Details
    ISSN: 1572-9338
    Schlagwort(e): Response surface methodology ; simulation ; optimization
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik , Wirtschaftswissenschaften
    Notizen: Abstract Managing the volume of experimental and/or simulation data required for large-scale design studies can be a significant problem. This paper describes a method for dealing with this problem, using response surface methodology. The method involves (1) determining a summary parameterization of the response of the underlying process mechanism generating the data, in order to characterize this response in terms of a manageable set of performance measures, and (2) deriving a model of the data, in order to summarize the dependence of the performance measures on selected predictor or design variables. The method is illustrated by its application to a problem in vehicle collision research.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02187101
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  • 5
    Digitale Medien
    Digitale Medien
    Definition of extraction files and their optimization by zero-one programming (1967)
    Springer
    BIT 7 (1967), S. 206-215 
    Details
    ISSN: 1572-9125
    Schlagwort(e): Extraction ; file ; optimization ; output
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Notizen: Abstract In commercial and administrative ADP it often happens that there is one large master file and many output files are to be made from this. One possible solution to avoid using the master file many times is to construct from it a few extraction files and from these compile the output files. In the following paper a method is described to define the extraction files and to optimize their contents by zero-one programming. An algorithm and an example are presented in a simplified case.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01939262
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  • 6
    Digitale Medien
    Digitale Medien
    On optimization of the maintenance of a register (1966)
    Springer
    BIT 6 (1966), S. 212-227 
    Details
    ISSN: 1572-9125
    Schlagwort(e): Data ; processing ; register ; maintenance ; optimization
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Notizen: Abstract Data processing nowadays represents a considerable investment and it is important to use computers as efficiently as possible. Criteria separating the best alternative from other ones would be very useful. In this article we have tried to find some criteria for the optimization of register maintenance applying the simplest methods of operations research. In particular the use of a change register has been investigated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01934355
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  • 7
    Digitale Medien
    Digitale Medien
    Occurrence, distribution and nature of neuropeptide Y in the rat pancreas (1985)
    Springer
    Cellular and molecular life sciences 41 (1985), S. 1554-1557 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Immunocytochemistry ; neuropeptide Y ; radioimmunoassay ; rat pancreas
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Significant quantities of a newly discovered peptide, neuropeptide Y, were found in the rat pancreas, where they were localized to nerves in the exocrine parenchyma and around arterial and ductal structures. Although unaffected by surgical parasympathectomy, the periarterial and periductal nerves were abolished by chemical sympathectomy, suggesting that NPY is partially costored with sympathetic transmitters in nerve fibers.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01964804
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  • 8
    Digitale Medien
    Digitale Medien
    Computer optimization of the performance of an anaerobic filter used for purification of highly polluted wastewater from a sugar refinery (1989)
    Springer
    Cellular and molecular life sciences 45 (1989), S. 1024-1029 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Anaerobic filter ; computer control ; optimization ; sugar refinery
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary An anaerobic filter system with a volume of 11 l fed with wastewater from the Swiss sugar refinery in Frauenfeld was established on a laboratory scale. It provided a filter performance of over 8 kg COD·m−3·d−1 with an efficiency of at least 70%. A 600–1 pilot plant system in the factory gave a degradation efficiency of 70% when fed with 28 kg COD·m−3·d−1 and yielded 0.34 m3 methane/kg COD, demonstrating that the scaling-up of the anaerobic filter had been successful. The rapidly-varying concentrations of organic materials in the wasterwater required the constant control of the wastewater flow to the system. A control program was developed for a small computer using an empirical model simulating the operator. By varying the influx rate of the wastewater to the anaerobic filter the computer kept the system at an optimal organic load. The results obtained were equivalent to those obtained by permanent control of the system by an operator.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01950153
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Neutronic optimization for a blanket of the laser fusion reactor, SENRI-I (1985)
    Springer
    Journal of fusion energy 4 (1985), S. 315-319 
    Details
    ISSN: 1572-9591
    Schlagwort(e): optimization ; SENRI ; blanket ; tritium ; breeding ; energy multiplication ; molten salt ; nonbreeding ; hybrid ; support ratio
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract Neutronic calculations were performed to optimize the SENRI blanket in terms of energy multiplication as well as tritium breeding ratio. The blanket employs a thick (∼ 64-cm) Li layer as breeder/coolant. Three approaches were taken here to achieve the goal: (1) reduction of6Li in the lithium, (ii) replacement of the Li layer by a molten-salt (flibe) layer, and (iii) shipment of excess tritium to a nonbreeding blanket. It was found that the excess tritium produced in the SENRI blanket could be used effectively to obtain additional power by fueling a nonbreeding D-T reactor.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01053361
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Immunocytochemical demonstration of calmodulin in cells secreting by exocytosis (1985)
    Springer
    Cellular and molecular life sciences 41 (1985), S. 1340-1342 
    Details
    ISSN: 1420-9071
    Schlagwort(e): Immunocytochemistry ; calmodulin ; secretory granules
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Calmodulin is a regulator of several calcium-dependent cellular processes. It has been suggested that it plays a role in the mechanism of secretion. Employing an indirect immunoperoxidase technique at the light microscope level, this study demonstrates the presence of calmodulin in several exocytotic cells (mast cells, thyroid follicular cells, neurohypophyseal neurosecretory terminals, pancreaticβ-cells and pancreatic acinus cells) in rat and man. The positive staining reaction for calmodulin was granular and at least in the case of rat mast cells it appeared to be associated with the granule membrane.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01952085
    Standort Signatur Erwartet Verfügbarkeit
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