Relevant bibliographies by topics / Travelling crab

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  2. Dissertations / Theses
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Academic literature on the topic 'Travelling crab'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Travelling crab"

1

FULL, ROBERT J. "Locomotion Energetics of the Ghost Crab: I. Metabolic Cost and Endurance." Journal of Experimental Biology 130, no. 1 (July 1, 1987): 137–53. http://dx.doi.org/10.1242/jeb.130.1.137.

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Arthropods possess spectacular diversity in locomotor design. Yet it is not clear what unique constraints, if any, variation in design imposes on mechanics, metabolic energy cost or endurance during terrestrial locomotion. In the present study metabolic energy cost and endurance on a treadmill are measured for an arthropod, the eight-legged sideways travelling ghost crab, Ocypode quadrata (Fabricius). In a second paper the mechanics of locomotion are determined during walking and running over a force plate. Severe limitations in O2 uptake during exercise are not inherent in the design of a crab's O2 transport system, which consists of gills and an open circulatory system. The ghost crab's capacity to elevate oxygen consumption (VOO2) rapidly is correlated with a lesser dependence on anaerobic sources than observed in other crab species. Accelerated glycolysis contributed at the onset of submaximal exercise, before O2 uptake adjustments were completed, but played only a minor role during steady-state exercise. O. quadrata elevated VOO2 6–4- to 8-fold above resting rates. The ghost crab's maximal oxygen consumption (VOO2max) was not different from that of an ectothermic vertebrate of the same body mass and temperature, such as a lizard, that uses lungs and a closed circulatory system. The minimum metabolic energy necessary to move 1 g of crab 1 km (Cmin) decreased as a function of body mass and age. Cmin was comparable to that predicted for vertebrates of a similar body mass and, therefore, appears to be relatively independent of locomotor design. This is consistent with the hypothesis that a similarity in the energetic properties of muscle and elastic structures may result in similar metabolic costs of locomotion. Endurance capacity did not increase with body mass, as predicted from interspecific comparisons of mammals and lizards. Instead, endurance capacity correlated with the speed at which oxygen consumption was maximal. Mean endurance capacity for ghost crabs was similar to that found for lizards, but was far less than the values predicted for mammals. Ghost crabs could only sustain a slow walk. Running at speeds 20 times faster is possible for short periods, but not without the aid of anaerobic metabolism.
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Charles, Colin, Darren Gillis, and Elmer Wade. "Using hidden Markov models to infer vessel activities in the snow crab (Chionoecetes opilio) fixed gear fishery and their application to catch standardization." Canadian Journal of Fisheries and Aquatic Sciences 71, no. 12 (December 2014): 1817–29. http://dx.doi.org/10.1139/cjfas-2013-0572.

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Tracking vessel movements has become increasingly important in fisheries research to identify fishing grounds, monitor responses to area closures, and other actions for fishery managers. Vessel monitoring systems (VMS) have given fishery managers and researchers the ability to study vessel interactions by automated tracking of vessels throughout fishing seasons. The high spatial and temporal resolution obtained from VMS records in the Gulf of St. Lawrence snow crab (Chionoecetes opilio) fishery provides information on movement patterns and fishing locations. With the use of hidden Markov models (HMM), we inferred behaviours exhibited by the fishermen during the course of fishing trips and related these behaviours to catch rates across years with varying abundance estimates. The HMM classified three behavioural states in the VMS data that were identified with travelling, setting traps in novel locations (new sets), and retrieving previously set traps (resets). Catches within a trip were modeled by combining VMS-based estimates of these behaviours with logbook information in a generalized linear model. Our model demonstrates that behavioural variables can contribute to the standardization of catch similar to classical trip and vessel variables used in constructing abundance indices.
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Dohnke, I., M. Mühlberg, and W. Neumann. "Structural Perfection of ZnSe Crystals Grown by Travelling Heater Method." Crystal Research and Technology 32, no. 8 (1997): 1115–24. http://dx.doi.org/10.1002/crat.2170320814.

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Parthier, L., D. Schikora, and P. Schäfer. "Computation of the axial temperature distribution for the travelling heater method." Crystal Research and Technology 20, no. 6 (June 1985): 827–32. http://dx.doi.org/10.1002/crat.2170200623.

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Harris, Jennifer. "Wax Coquettes: Elizabeth Whitman, Henry Wadsworth Longfellow, and the Nineteenth-Century Travelling Waxwork Exhibition." Canadian Review of American Studies 40, no. 3 (December 2010): 373–89. http://dx.doi.org/10.3138/cras.40.3.373.

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Roszmann, J., S. Dost, and B. Lent. "Crystal growth by the travelling heater method using tapered crucibles and applied rotating magnetic field." Crystal Research and Technology 45, no. 8 (June 21, 2010): 785–90. http://dx.doi.org/10.1002/crat.201000269.

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Miller, W., Ch Frank-Rotsch, M. Czupalla, and P. Rudolph. "Numerical modelling of Czochralski growth of quadratic silicon crystals by means of a travelling magnetic field." Crystal Research and Technology 47, no. 3 (November 14, 2011): 285–92. http://dx.doi.org/10.1002/crat.201100494.

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Nghi, Nguyen Thanh. "Heat and mass transfer problems in solution growth of GaP crystals by the travelling solvent method (TSM)." Crystal Research and Technology 20, no. 10 (October 1985): 1317–23. http://dx.doi.org/10.1002/crat.2170201005.

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Comte, FréDÉRic Ducros, Pierre, and Marcel Lesieur. "Large-eddy simulation of transition to turbulence in a boundary layer developing spatially over a flat plate." Journal of Fluid Mechanics 326 (November 10, 1996): 1–36. http://dx.doi.org/10.1017/s0022112096008221.

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It is well known that subgrid models such as Smagorinsky's cannot be used for the spatially growing simulation of the transition to turbulence of flat-plate boundary layers, unless large-amplitude perturbations are introduced at the upstream boundary: they are over-dissipative, and the flow simulated remains laminar. This is also the case for the structure-function model (SF) of Métais & Lesieur (1992). In the present paper we present a sequel to this model, the filtered-structure-function (FSF) model. It consists of removing the large-scale fluctuations of the field before computing its second-order structure function. Analytical arguments confirm the superiority of the FSF model over the SF model for large-eddy simulations of weakly unstable transitional flows. The FSF model is therefore used for the simulation of a quasi-incompressible (M∞ = 0.5) boundary layer developing spatially over an adiabatic flat plate, with a low level of upstream forcing. With the minimal resolution 650 × 32 × 20 grid points covering a range of streamwise Reynolds numbers Rex1 ε [3.4 × 105, 1.1 × 106], transition is obtained for 80 hours of time-processing on a CRAY 2 (whereas DNS of the whole transition takes about ten times longer). Statistics of the LES are found to be in acceptable agreement with experiments and empirical laws, in the laminar, transitional and turbulent parts of the domain. The dynamics of low-pressure and high-vorticity distributions is examined during transition, with particular emphasis on the neighbourhood of the critical layer (defined here as the height of the fluid travelling at a speed equal to the phase speed of the incoming Tollmien–Schlichting waves). Evidence is given that a subharmonic-type secondary instability grows, followed by a purely spanwise (i.e. time-independent) mode which yields peak-and-valley splitting and transition to turbulence. In the turbulent region, flow visualizations and local instantaneous profiles are provided. They confirm the presence of low- and high-speed streaks at the wall, weak hairpins stretched by the flow and bursting events. It is found that most of the vorticity is produced in the spanwise direction, at the wall, below the high-speed streaks. Isosurfaces of eddy viscosity confirm that the FSF model does not perturb transition much, and acts mostly in the vicinity of the hairpins.
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"204 Crane Equipment Maintenance Management : overhead travelling crane with hoist and crab." Proceedings of the Symposium on Evaluation and Diagnosis 2010.9 (2010): 76–81. http://dx.doi.org/10.1299/jsmesed.2010.9.76.

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Dissertations / Theses on the topic "Travelling crab"

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Tvrdoň, Jan. "Konstrukce jeřábové kočky mostového jeřábu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232187.

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This thesis deals with proposal hoisting device of travelling crab with lifting capacity of 20000 kg for placement in the scrap yard foundries. The main objective is design of bearing elements of cable system (choice of ropes, pulleys, rope drum), strenght calculation block and a proposal to operate the hoisting device (engine, transmission and brake). It also deals with the proposal propel cats (engine, transmission, brakes, wheel load). Drawing documentation contains a set of trolleys, cable drum assembly weldments and detail spigot cable drum.
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Daňhel, Oldřich. "Jeřáb mostový 50t - 27m." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228800.

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This master's thesis deals with the crab of a traveller crane of 50,000 kg load capacity. The aim of the thesis is a functional calculation of travelling and lifting crab mechanisms and strength frame calculation in compliance with applicable ČSN standards and respective literature concerned with the calculations of cranes and their parts. The attached drawings show the crab, lifting and travelling mechanisms.
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Milichovský, Karel. "Pomocná jeřábová kočka 10000 kg." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399557.

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This master thesis deals with design of auxiliary crab trolley with load capacity 10t. Crab trolley moves along outdoor track of scrab yard. The target of this thesis is calculation and own design of travelling and lifting gear, strength calculation of frame and drawing documentation of a crane trolley assembly.
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Stanec, Stanislav. "Jeřáb mostový jednonosníkový." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318639.

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This diploma thesis deals with constructional design and a calculation of one-girder bridge crane with the requested primary parametres: lifting capacity 10 000 kg, span 12 000 mm, wheel base 2 500 mm, travel height 7 000 mm. In diploma thesis, there is executed analysis of constructional designs of box girders, drawn up technical report with the analysis of the choice of the construction with important technical and physical calculations. Calculations were executed according to valid Czech state norms and literature. Drawing documentation is enclosed to this thesis.
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Books on the topic "Travelling crab"

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Climbing New Zealand: A Crag Guide for the Travelling Rock Climber. Posing Productions, 2001.

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