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  • 1
    Electronic Resource
    Electronic Resource
    Die chemische Zusammensetzung der Wolle XIII. Abtrennung und Analyse von Mikrofibrillen (1976)
    Springer
    Colloid & polymer science 254 (1976), S. 948-948 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01775577
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Retrial queues with server subject to breakdowns and repairs (1990)
    Springer
    Queueing systems 7 (1990), S. 191-208 
    Details
    ISSN: 1572-9443
    Keywords: Retrial queues ; imbedded Markov chains ; Markov regenerative processes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract In this paper we consider a single server retrial queue where the server is subject to breakdowns and repairs. New customers arrive at the service station according to a Poisson process and demand i.i.d. service times. If the server is idle, the incoming customer starts getting served immediately. If the server is busy, the incoming customer conducts a retrial after an exponential amount of time. The retrial customers behave independently of each other. The server stays up for an exponential time and then fails. Repair times have a general distribution. The failure/repair behavior when the server is idle is different from when it is busy. Two different models are considered. In model I, the failed server cannot be occupied and the customer whose service is interrupted has to either leave the system or rejoin the retrial group. In model II, the customer whose service is interrupted by a failure stays at the server and restarts the service when repair is completed. Model II can be handled as a special case of model I. For model I, we derive the stability condition and study the limiting behavior of the system by using the tools of Markov regenerative processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01158474
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  • 3
    Electronic Resource
    Electronic Resource
    A reader-writer queue with reader preference (1994)
    Springer
    Queueing systems 15 (1994), S. 81-97 
    Details
    ISSN: 1572-9443
    Keywords: reader-writer queue ; reader preference ; M/G/1 queue with exceptional service ; M/G/∞ queue ; concurrency control ; locking
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract This paper considers a reader-writer queue with reader preference. The system can process an unlimited number of readers simultaneously. However, writers have to be processed one at a time. Readers are given non-preemptive priority over writers. Both readers and writers arrive according to Poisson processes (PP) and have general independent service times. There is infinite waiting room for both. This system is analyzed to produce stability conditions. The analysis uses anM/G/∞ queue busy period to model readers, followed by a modifiedM/G/1 queue to model the entire system. Finally, results are presented for the expected wait-in-queue times for the readers and writers. The paper ends with an example.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01189233
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  • 4
    Electronic Resource
    Electronic Resource
    Stability and queueing time analysis of a reader-writer queue with alternating exhaustive priorities (1995)
    Springer
    Queueing systems 19 (1995), S. 81-103 
    Details
    ISSN: 1572-9443
    Keywords: Reader-writer queue ; alternating priority ; M/G/1 queue ; M/G/∞ queue ; semi-Markov process ; concurrency control ; locking
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract This paper considers a reader-writer queue with alternating exhaustive priorities. The system can process an unlimited number of readers simultaneously. However, writers have to be processed one at a time. Both readers and writers arrive according to Poisson processes. Writer and reader service times are general iid random variables. There is infinite waiting room for both. The alternating exhaustive priority policy operates as follows. Assume the system is initially idle. The first arriving customer initiates service for the class (readers or writers) to which it belongs. Once processing begins for a given class of customers, this class is served exhaustively, i.e. until no members of that class are left in the system. At this point, if customers of the other class are in the queue, priority switches to this class, and it is served exhaustively. This system is analyzed to produce a stability condition and Laplace-Stieltjes transforms (LSTs) for the steady state queueing times of readers and writers. An example is also given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01148941
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  • 5
    Electronic Resource
    Electronic Resource
    Bandwidth allocation and access control in high-speed networks (1994)
    Springer
    Annals of operations research 49 (1994), S. 161-183 
    Details
    ISSN: 1572-9338
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract The problem of bandwidth allocation and access regulation arises in the congestion control of Broadband ISDN networks. This paper assumes that a single user, described by an on-off fluid model, is connected to the network via a leaky bucket access control mechanism. The bandwidth allocated to this user and the leaky bucket parameters are to be selected so as to guarantee a negotiated level of delay probability at the access point and packet loss probability in the network which is modelled as an output buffer. The design problem is to minimize the allocated bandwidth subject to service guarantees and stability conditions for the input and output buffers. We provide a desirable feasible solution to the design problem. The paper studies the effect of non-conforming users on the network performance using the leaky bucket access control corresponding to this feasible solution. We provide expressions that quantify the impact of the leaky bucket parameters in access regulation and the worst-case queueing behavior at the output buffer. Finally, we discuss the extension of this methodology to the multiple leaky buckets case.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02031596
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  • 6
    Electronic Resource
    Electronic Resource
    Effective bandwidths for Markov regenerative sources (1996)
    Springer
    Queueing systems 24 (1996), S. 137-153 
    Details
    ISSN: 1572-9443
    Keywords: fluid models ; effective bandwidth ; tail probabilities ; Markov regenerative process
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract In this paper we consider the multiplexing of independent stochastic fluid sources onto a single buffer. The rate at which a source generates fluid is assumed to be modulated by a Markov regenerative process. We develop the exponential decay rates for the tails of the steady-state distribution of the buffer content. We also develop expressions for the effective bandwidths for such sources. All the results are in terms of the Perron-Frobenius eigenvalue of a matrix defined for the Markov regenerative source. As a special case we derive similar results for regenerative sources. We apply the results to video sources.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01149083
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  • 7
    Electronic Resource
    Electronic Resource
    Weitere Studien an Mikrofibrillen aus Wollkeratin. II. Die chemische Zusammensetzung der globulären und der gelösten Proteine, die bei der Trennung der Mikrofibrillen von Wollkeratin isoliert wurden (1978)
    Springer
    Colloid & polymer science 256 (1978), S. 393-393 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01544415
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  • 8
    Electronic Resource
    Electronic Resource
    Processable intrinsically conductive polymer blends (1992)
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 14 (1992), S. 123-124 
    Details
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Blends of intrinsically conductive polymers (ICPs) with conventional thermo-plastics exhibit conductivities approaching those of neat ICPs and can be processed using conventional thermoplastic processing equipment. They display good environmental stability and mechanical properties suitable for commercial applications.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/vnl.730140215
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  • 9
    Electronic Resource
    Electronic Resource
    EMI shielding of intinsically conductive polymers (1992)
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 14 (1992), S. 118-122 
    Details
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Results of this study, in which shielding efficiencies are measured for a number of blends containing various conductive fillers including intrinsically conductive polymers, are reported. It is shown that a very high level of shielding performance can be achieved by use of intrinsically conductive polymers in thermoplastic blends and that the most reliable measure of this performance is obtained from far-field shielding measurements. However, near-field measurements provide a useful method for comparing the relative shielding effectiveness of different samples. A PVC blend containing nearly uniformly dispersed intrinsically conductive polymer proved to be the best performing sample.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/vnl.730140214
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  • 10
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    Unknown
    Bandwidth allocation and access control in high-speed networks (1994)
    Springer
    Details
    Publication Date: 1994-12-01
    Print ISSN: 0254-5330
    Electronic ISSN: 1572-9338
    Topics: Mathematics , Economics
    Published by Springer
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