ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Springer  (156)
  • Ovid Technologies
  • 2005-2009  (63)
  • 2000-2004  (47)
  • 1985-1989  (47)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Spicher's SB-Algorithmus Revisited — Feedback versus Feedforeward — Steuerung in der Lagerhaltung (1986)
    Springer
    OR spectrum 8 (1986), S. 89-98 
    Details
    ISSN: 1436-6304
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Description / Table of Contents: Summary There exist different approaches to calculate the reorderpoint for inventory problems having stochastic lead times. On the one hand lead times can explicitly be forecasted whereas on the other hand one can measure fullfilled demand without any reference to lead times. These approaches can be considered as feedforeward and feedback procedures respectively. The main object of the paper is a comparison of both methods for different scenarios and criteria.
    Notes: Zusammenfassung In Lagerhaltungsproblemen mit stochastischen Lieferfristschwankungen kann der Bestellpunkt grundsätzlich nach zwei unterschiedlichen Verfahren berechnet werden; entweder durch explizites Bilden von Lieferfristprognosen oder durch die Erfassung nicht befriedigter Nachfrage. Diese grundsätzlich unterschiedlichen Vorgehensweisen stellen Feedforeward- bzw. Feedbackverfahren dar. Gegenstand der Arbeit ist ein Vergleich beider Verfahren in unterschiedlichen Problem-situationen hinsichtlich verschiedener Kriterien.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01719740
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1987)
    Springer
    OR spectrum 9 (1987), S. 32-32 
    Details
    ISSN: 1436-6304
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01720795
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Food uptake and fine structure of Cryothecomonas longipes sp. nov., a marine nanoflagellate incertae sedis feeding phagotrophically on large diatoms (2000)
    Springer
    Helgoland marine research 54 (2000), S. 18-32 
    Details
    ISSN: 1438-3888
    Keywords: Key words Cryothecomonas longipes ; Marine diatoms ; Nanoflagellate ; Parasitoid ; Phagocytosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Cryothecomonas longipes Schnepf and Kühn sp. nov. is a colourless biflagellate organism, 9–14 µm long and 7–9 µm wide when not filled with food vacuoles. It was detected in the North Sea, feeding with pseudopodia on diatoms. It penetrates the host shell, while the main body of the flagellate remains outside the frustule. Cells are covered with a multilayered theca. The pseudopodium protrudes through a preformed slit in the theca. Each flagellum also emerges through a pit in which the theca forms a funnel of complex structure that girdles each flagellum. The anterior flagellum is 9–15 µm long and oriented forward; the ventral flagellum, posteriorly directed, is 20–24 µm long and bears fine hairs. The flagellar roots consist of microtubules that emerge at satellites around the basal bodies and run along the flagellar pits. In addition, the ventral flagellum is accompanied by a band of six microtubules. It is proximally attached to a small fibrillar band, which interconnects the basal bodies. Cryothecomonas longipes has two or three types of extrusomes which pierce the theca when discharged. Their mode of discharge is discussed. Microbody-like vesicles containing small tubules are closely associated with older digestion vacuoles. Cryothecomonas longipes is compared with other species of the genus and a diagnosis is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s101520050032
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Modeling the pion and kaon form factors in the timelike region (2005)
    Springer
    The European physical journal 39 (2005), S. 41-54 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. New, accurate measurements of the pion and kaon electromagnetic form factors are expected in the near future from experiments at electron-positron colliders, using the radiative return method. We construct a model for the timelike pion electromagnetic form factor that is valid also at momentum transfers far above the $\rho$ resonance. The ansatz is based on vector dominance and includes a pattern of radial excitations expected from dual resonance models. The form factor is fitted to the existing data in the timelike region, continued to the spacelike region and compared with the measurements there and with the QCD predictions. Furthermore, the model is extended to the kaon electromagnetic form factor. Using isospin and SU(3)-flavor symmetry relations we extract the isospin-one contribution and predict the kaon weak form factor accessible in semileptonic $\tau$ decays.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjc/s2004-02064-3
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Non-equilibrium dynamics of simple spherical spin models (2000)
    Springer
    The European physical journal 13 (2000), S. 531-537 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 05.20.-y Classical statistical mechanics - 75.10.Nr Spin-glass and other random models
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We investigate the non-equilibrium dynamics of spherical spin models with two-spin interactions. For the exactly solvable models of the d-dimensional spherical ferromagnet and the spherical Sherrington-Kirkpatrick (SK) model the asymptotic dynamics has for large times and large waiting times the same formal structure. In the limit of large waiting times we find in both models an intermediate time scale, scaling as a power of the waiting time with an exponent smaller than one, and thus separating the time-translation-invariant short-time dynamics from the aging regime. It is this time scale on which the fluctuation-dissipation theorem is violated. Aging in these models is similar to that observed in spin glasses at the level of correlation functions, but different at the level of response functions, and thus different at the level of experimentally accessible quantities like thermoremanent magnetization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510050065
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Eigenvalues of integral operators with smooth positive definite kernels (1987)
    Springer
    Archiv der Mathematik 49 (1987), S. 525-534 
    Details
    ISSN: 1420-8938
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01194301
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Entropy and eigenvalues of weakly singular integral operators (1988)
    Springer
    Integral equations and operator theory 11 (1988), S. 64-86 
    Details
    ISSN: 1420-8989
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In this paper the asymptotic behaviour of entropy numbers and eigenvalues of weakly singular integral operators acting between Lp-spaces over arbitrary bounded open domains in ℝN are investigated. The singularities contain not only power but also logarithmic terms. In particular, we consider the case where the (power) order of the singularity equals half of the dimension of the domain, thus refining earlier results of H. König [6].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01236654
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    A theory of the adaptive growth of biological materials (2000)
    Springer
    Archive of applied mechanics 70 (2000), S. 183-192 
    Details
    ISSN: 1432-0681
    Keywords: Key words Mixture theory ; adaptive growth ; tree ; bone remodeling ; biomechanics ; stimulus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary In this paper, a new theory of the adaptive growth of biological materials is presented. The theory is derived from the basic laws of continuum mechanics. The material is described as a classical mixture of solid material and fluid. It will be shown that several well-known models of the adaptive growth are embedded in this more general theory. In addition, it is clarified on which material assumptions these models are based. Finally, a solution procedure for the new theory is developed, and several examples are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004199900056
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Field measurements of net photosynthesis of lichens in the Antarctic (1986)
    Springer
    Polar biology 5 (1986), S. 255-258 
    Details
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00446094
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Nonlinear neural networks. I. General theory (1988)
    Springer
    Journal of statistical physics 50 (1988), S. 231-257 
    Details
    ISSN: 1572-9613
    Keywords: Neural networks ; spin glasses ; learning rules ; clipped and other nonlinear synapses ; synaptic kernel ; spectral theory
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A neural network is called nonlinear if the introduction of new data into the synaptic efficacies has to be performed through anonlinear operation. The original Hopfield model is linear, whereas, for instance, clipped synapses constitute a nonlinear model. Here a general theory is presented to obtain the statistical mechanics of a neural network with finitely many patterns and arbitrary (symmetric) nonlinearity. The problem is reduced to minimizing a free energy functional over all solutions of a fixed-point equation with synaptic kernelQ. The case of clipped synapses with bimodal and Gaussian probability distribution is analyzed in detail. To this end, a simple theory is developed that gives the spectrum ofQ and thereby all the solutions that bifurcate from the high-temperature phase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01022994
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...