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  • Electron microscopy  (1,196)
  • growth  (682)
  • stability  (680)
  • Springer  (2,553)
  • Florida Department of Natural Resources, Marine Research Laboratory  (4)
  • 1
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/881 | 97 | 2020-08-24 03:38:48 | 881 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-03
    Description: Savage, T. and J.R. Sullivan. 1978. Growth and Claw Regeneration of the Stone Crab,Menippe mercenaria. Fla. Mar. Res. Publ. No. 32.23 pp. Laboratory-maintained and feralcrabs were observed for incremental carapace width and major and minor claw growth.Morphometric relationships for male and female carapace width against length andcarapace width against major and minor claw sizes were derived. Only slopes of carapacewidth us. female major and male minor claws were not significantly different at the 95%confidence level. Feral normal male incremental growth exceeded that of normal femalesfor all parameters. Normal laboratory females possessed greater average carapace widthgrowth but less claw growth than did their male counterparts. All laboratory growth wasmore uniform but incrementally smaller than corresponding field growth. A hypotheticalgrowth plot constructed from incremental growth of several crabs indicated ages atattainment of sexual maturity and legal size to be 10 and 30 months. A pictorial descriptionof stone crab claw regeneration is presented. Minor claws realized greater regenerationafter one and two molts (73.5% and 96.5% of pre-autotomized sizes) than did major claws(68.6% and 89.0%). Intermolt interval of laboratory crabs increased with larger carapacewidth sizes. Claw loss shortened or lengthened duration of the intermolt period dependingupon whether the claw was removed shortly after a molt or later in the cycle. (Document has 27 pages.)
    Keywords: Oceanography ; Biology ; Florida ; Stone Crab ; Menippe mercenaria ; claw regeneration ; growth
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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  • 2
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/763 | 97 | 2020-08-24 03:28:05 | 763 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (26pp.)
    Keywords: Fisheries ; Biology ; Florida ; Bonefish ; Albula vulpes ; age ; growth ; reproduction ; feeding behavior
    Repository Name: AquaDocs
    Type: monograph
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  • 3
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/765 | 97 | 2020-08-24 03:28:40 | 765 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (27pp.)
    Keywords: Fisheries ; Biology ; Aquaculture ; Florida ; Spanish mackerel ; Scomberomorus maculatus ; age ; growth ; reproduction
    Repository Name: AquaDocs
    Type: monograph
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  • 4
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    Florida Department of Natural Resources, Marine Research Laboratory | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/762 | 97 | 2020-08-24 03:27:46 | 762 | Florida Fish and Wildlife Conservation Commission
    Publication Date: 2021-07-02
    Description: (51pp.)
    Keywords: Fisheries ; Biology ; Florida ; King Mackerel ; Scomberomorus cavalla ; age ; growth ; reproduction
    Repository Name: AquaDocs
    Type: monograph
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  • 5
    Publication Date: 2020-11-12
    Description: Slope dynamics in volcanic environments comprise a wide spectrum of phenomena, from large lateral collapse to shallow debris remobilization, which may represent a major threat for human communities and infrastructures. Many volcanos built up from the ocean floor and large portions of the volcano edifice are submerged. In these settings, only the edifice’s summit can be investigated by terrestrial remote sensing and in-situ approaches. Growth and destruction, including tectonics and gravitational phenomena, affect entire volcano flanks and are not limited to the physical boundary of the sea level but could comprise their subaqueous parts.
    Description: Published
    Description: 2615–2618
    Description: 6V. Pericolosità vulcanica e contributi alla stima del rischio
    Description: JCR Journal
    Keywords: volcanoes ; flanks ; volcano-tectonics ; structure ; collapse ; stability ; 04.08. Volcanology ; 05.08. Risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    The journal of Fourier analysis and applications 5 (1999), S. 105-125 
    ISSN: 1531-5851
    Keywords: 26B05 ; 42B10 ; 42C99 ; frame ; Gabor system ; Riesz basis ; stability ; wavelet
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract If the sequence of functions ϕj, k is a wavelet frame (Riesz basis) or Gabor frame (Riesz basis), we obtain its perturbation system ψj,k which is still a frame (Riesz basis) under very mild conditions. For example, we do not need to know that the support of ϕ or ψ $$(\hat \phi or\hat \psi )$$ is compact as in [14]. We also discuss the stability of irregular sampling problems. In order to arrive at some of our results, we set up a general multivariate version of Littlewood-Paley type inequality which was originally considered by Lemarié and Meyer [17], then by Chui and Shi [9], and Long [16].
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Circuits, systems and signal processing 19 (2000), S. 423-435 
    ISSN: 1531-5878
    Keywords: Time-varying autoregressive models ; stability ; smoothness priors ; Tihkonov regularization ; constrained optimization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The stability of time-varying autoregressive (AR) models is an important issue in such applications as time-varying spectrum estimation and electroencephalography simulation and estimation. In some cases, such as time-varying spectrum estimation, the models that exhibit roots near unit moduli are difficult to use. Thus a tighter stability condition such as stability with a positive margin is needed. A time-varying AR model is stable with a positive margin if the moduli of the roots of the time-varying characteristic polynomial are somewhat less than unity for every time instant. Recently, a new method for the estimation of the time-varying AR models was introduced. This method is based on the interpretation of the underdetermined time-varying prediction equations as an ill-posed inverse problem that is solved by Tikhonov regularization. The method is referred to as the deterministic regression smoothness priors (DRSP) scheme. In this paper, a stabilization method in which the DRSP scheme is augmented with nonlinear stability constrainst is proposed. The problem is formulated so that stability with a positive margin can also be achieved. The problem is solved iteratively with an exterior point algorithm. The performance of the algorithm is studied with a simulation. It is shown that the proposed approach is well suited to stable modeling of signals containing narrowband transitions.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Circuits, systems and signal processing 19 (2000), S. 13-25 
    ISSN: 1531-5878
    Keywords: Singular systems ; delay ; consistency condition ; stability ; instability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract In this paper, the general class of singular systems with delay and linear constant coefficient singular systems with delay are discussed. First, several definitions of stability are presented for singular systems with delay, and general sufficient stability conditions and instability conditions are obtained. Second, stability and instability are analyzed for linear constant coefficient singular systems with delay.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Computing 24 (1980), S. 341-347 
    ISSN: 1436-5057
    Keywords: Numerical analysis ; Volterra integral equations of the second kind ; stability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Description / Table of Contents: Zusammenfassung Ziel dieser Arbeit ist es, die Stabilitätseigenschaften einer Klasse Volterrascher Integralgleichungen zweiter Art zu untersuchen. Unsere Behandlung ist der üblichen Stabilitätsanalyse ähnlich, in der die Kernfunktionen zu einer im voraus beschränkten Klasse von Testfunktionen gehören. Wir haben die Klasse der “endlich zerlegbaren” Kerne betrachtet. Stabilitätsbedingungen werden abgeleitet und verglichen mit den Bedingungen für die einfache Testgleichung. Es zeigt sich, daß die neuen Kriteria einschränkender sind als die konventionellen Bedingungen. Der praktische Wert wird getestet durch numerische Experimente mit der Trapezregel.
    Notes: Abstract The purpose of this paper is to analyse the stability properties of a class of multistep methods for second kind Volterra integral equations. Our approach follows the usual analysis in which the kernel function is a priori restricted to a special class of test functions. We consider the class of finitely decomposable kernels. Stability conditions will be derived and compared with those obtained with the simple test equation. It turns out that the new criteria are more severe than the conventional conditions. The practical value is tested by numerical experiments with the trapezoidal rule.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Computing 51 (1993), S. 271-292 
    ISSN: 1436-5057
    Keywords: 65N15 ; 65N99 ; 35A40 ; Box method ; boundary value problem ; finite volume method ; variational formulation ; stability ; error bounds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Description / Table of Contents: Zusammenfassung Box-Methoden (Finite-Volumen-Methoden) sind verbreitete Verfahren zur Lösung physikalischer Erhaltungsgleichungen, insbesondere in der Strömungsmechanik. In dieser Arbeit werden zwei Methoden für elliptische Differentialgleichungen untersucht, die Diagonal-Boxen und die Schwerpunkt-Boxen. Da die Box-Methoden im Sinne von Petrov-Galerkin-Verfahren interpretiert werden können, erhält man vergleichbar zur Finiten-Element-Methode eine variationsrechnerische Stabilitäts- und Fehleranalyse. Damit werdenO(h)- undO(h 2)-Fehlerabschätzungen hergeleitet. Lokale Eigenwertprobleme führen zu Stabilitätsaussagen. Allerdings ergibt sich eine Abhängigkeit von der Anzahl und Art gestörter Vierecke. Insbesondere die Diagonal-Boxen sind anfällig für lokale Störungen.
    Notes: Abstract Box schemes (finite volume methods) are widely used in fluiddynamics, especially for the solution of conservation laws. In this paper two box-schemes for elliptic equations are analysed with respect to quadrilateral meshes. Using a variational formulation, we gain stability theorems for two different box methods, namely the so-called diagonal boxes and the centre boxes. The analysis is based on an elementwise eigenvalue problem. Stability can only be guaranteed under additional assumptions on the geometry of the quadrilaterals. For the diagonal boxes unsuitable elements can lead to global instabilities. The centre boxes are more robust and differ not so much from the finite element approach. In the stable case, convergence results up to second order are proved with well-known techniques.
    Type of Medium: Electronic Resource
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