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  • 1
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    Developing Tsunami-Resilient Communities (2005)
    Springer
    In:  Amsterdam, Springer, vol. 1, pp. 225, (1-4020-3353-2)
    Details
    Publication Date: 2005
    Keywords: Tsunami(s) ; Earthquake risk ; Earthquake precursor: prediction research ; Review article ; Early warning systems (earthquakes, volcanic eruptions, tsunamis etc.) ; Modelling ; NATHAZ ; measurement, ; tsunami ; model, ; data ; assimilation, ; data ; inversion, ; tsunami ; warning, ; tsunameters, ; forecast, ; hazard ; mitigation
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    MATLAB Recipes for Earth Sciences (2006)
    Springer
    In:  Berlin, Springer, vol. 3, no. ALEX(01)-FR-77-01, AFTAC Contract F08606-76-C-0025, pp. 329, (ISBN: 3-540-27983-0, XII + 238 p., 77 illus., 13 in colour with CD-ROM)
    Details
    Publication Date: 2006
    Description: Contents: Data Analysis in Earth Sciences - Introduction to MATLAB - Univariate Statistics - Bivariate Statistics - Time-Series Analysis - Signal Processing - Spatial Data including Digital Elevation Models - Image Processing including Processing and Georeferencing of Satellite Images - Multivariate Statistics; IfGW Uni Potsdam
    Keywords: Data analysis / ~ processing ; Modelling ; software ; Textbook of geophysics ; Statistical investigations ; digital signal analysis (also DSP) ; DSP ; Time series analysis ; Digital elevation model ; geographic ; coordinates ; Mapping ; Toolbox
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    A combined geophysical/engineering approach for the seismic safety of long-span bridges (2005)
    Springer
    In:  Professional Paper, Perspectives in Modern Seismology, Berlin, Springer, vol. 105, 223 pp., no. 231, pp. 13-30, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 2005
    Keywords: Earthquake risk ; Site amplification ; Strong motions ; Earthquake engineering, engineering seismology ; Synthetic seismograms ; NOISE ; Nakamura ; Modelling ; Cologne ; DFNK ; Faecke ; Facke
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    BIBLIOGRAPHY SEISMOLOGY
  • 4
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    Velocity field of the Aegean-Anatolian region from 3D finite element models (2005)
    Springer
    In:  Bull., Polar Proj. OP-O3A4, Perspectives in Modern Seismology, London, Springer, vol. 201, no. XVI:, pp. 169-184, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 2005
    Keywords: Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Geodesy ; Finite Element Method ; Modelling ; Three dimensional ; Seismology ; Early warning systems (earthquakes, volcanic eruptions, tsunamis etc.) ; Bucharest ; Romania ; Earthquake risk
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    BIBLIOGRAPHY SEISMOLOGY
  • 5
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    A syn-eruptive ground deformation episode measured by GPS, during the 2001 eruption on the upper southern flank of Mt Etna (2005)
    Springer
    Details
    Publication Date: 2017-04-04
    Description: Ground deformation occurring on the southern flank of Mt Etna volcano during the JulyAugust 2001 eruption was monitored by GPS measurements along an EW profile crossing the fissure system. This profile was measured eight times during the eruption, using the 'stop and go' semi-kinematic technique. Horizontal and vertical displacements between GPS surveys are reported for each station. The most significant event is a deformation episode occurring during the first week of the eruption, between 2527 July. Displacements were measured on benchmarks close to the eruptive fissure and the tensile 1989 fracture. Data inversions for measured displacements were performed using the Okada model. The model shows the narrowing of the 2001 dyke accompanied by a dextral dislocation along an east-dipping fault, parallel to the 1989 fracture.
    Description: Published
    Description: 336-341
    Description: partially_open
    Keywords: GPS ; Ground deformation ; Modelling ; Volcano monitoring ; 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy ; 04. Solid Earth::04.03. Geodesy::04.03.09. Instruments and techniques ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
    Format: 513 bytes
    Format: 467775 bytes
    Format: text/html
    Format: application/pdf
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    PAPER (OA)
  • 6
    Electronic Resource
    Electronic Resource
    Water balance of small lactating rodents —III. Estimates of milk production and water recycling in lactating Mus musculus under various water regimes (1981)
    Springer
    Journal of mathematical biology 13 (1981), S. 1-22 
    Details
    ISSN: 1432-1416
    Keywords: Water recycling ; Lactation ; Mus ; Modelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Mathematics
    Notes: Abstract 1. The exchanges of water between lactating female and young Mus musculus were modelled on the computer. 2. The model was used to estimate rates of milk production and water recycling in various litter sizes under various water regimes by following the time course of injected tritiated water. 3. The high correlation between estimated rates of milk production and actual growth rates of young was taken to indicate that the method gave if not the actual rates of milk production a very constant proportion of it. 4. Approximately 50% of the water secreted in milk is returned to the mother by recycling.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276863
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  • 7
    Electronic Resource
    Electronic Resource
    Modelling the growth of bacteria during glucose decomposition in soil under different temperatures (1980)
    Springer
    Plant and soil 55 (1980), S. 77-84 
    Details
    ISSN: 1573-5036
    Keywords: Bacteria ; Growth ; Modelling ; Soil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effect of temperature on the growth of soil microflora is usually expressed by temperature coefficients which cannot be used in simulation of diurnal changes of temperature. We have therefore introduced a function found in our previous experiments into a simple model of bacterial growth, which describes the relationship between temperature and the maximum gross growth rate of the microflora. The results of the simulation are compared to values obtained experimentally.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02149711
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  • 8
    Electronic Resource
    Electronic Resource
    A note on modelling methods for studies of ectomycorrhizal systems (1983)
    Springer
    Plant and soil 71 (1983), S. 507-512 
    Details
    ISSN: 1573-5036
    Keywords: Dynamics ; Ectomycorrhizas ; Host response ; Infection ; Modelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Possibilities for modelling developing ectomycorrhizal root systems are discussed in the light of recent experience with vesicular-arbuscular mycorrhizal systems. Emphasis is given to experimental techniques and measurements which can provide suitable data on which to base models.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02182693
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  • 9
    Electronic Resource
    Electronic Resource
    Mathematical model of an arterial stenosis, allowing for tethering (1981)
    Springer
    Medical & biological engineering & computing 19 (1981), S. 385-390 
    Details
    ISSN: 1741-0444
    Keywords: Arterial stenosis ; Circulation ; Modelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Closed-form solutions are presented for approximate equations governing the pulsatile flow of blood through models of mild axisymmetric arterial stenosis, taking into account the effect of arterial distensibility. Results indicate the existence of back-flow regions and the phenomenon of flow-reversal in the cross-sections. The effects of pulsatility of flow and elasticity of vessel wall for arterial blood flow through stenosed vessels are determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02441299
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  • 10
    Electronic Resource
    Electronic Resource
    Electrocardiogram sources in a 2-dimensional anisotropic activation model (1980)
    Springer
    Medical & biological engineering & computing 18 (1980), S. 87-94 
    Details
    ISSN: 1741-0444
    Keywords: Cardiac tissue ; Electrophysiology ; Modelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract This paper develops a model of 2-dimensional anisotropic cardiac tissue which permits the examination of the electrical sources arising from excitation at a point. The specific results depend on the anisotropy parameters and two cases are considered in detail. For assumed equal anisotropicity ratios in the interstitial and intracellular space the isochrones are (asymptotically) confocal ellipses and the total double layer source is (asymptotically) uniform. Surface fields are calculated and plotted for this condition. (For nonequal anisotropy ratios the total double layer source is necessarily nonuniform). When the preparation is very thin so that all fibres are essentially in contact with the extracellular medium the isochrones are (asymptotically) confocal ellipses but the total double-layer sources are now nonuniform. The sources for this case are determined and the fields at the surface of the cardiac tissue evaluated and plotted. The aforementioned ‘thin’ and ‘thick’ tissue preparations are contrasted with each other and the effects of anisotropicity in cardiac tissue discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442485
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  • 11
    Electronic Resource
    Electronic Resource
    Numerical scheme for modelling oxygen transfer in tubular oxygenators (1981)
    Springer
    Medical & biological engineering & computing 19 (1981), S. 524-534 
    Details
    ISSN: 1741-0444
    Keywords: Artificial lung ; Membrane oxygenator ; Modelling ; Oxygen transfer ; Tubes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract The diffusion equation for oxygen transfer in tubular membrane oxygenators has been solved numerically by using the Crank-Nicolson method. The iterative procedure takes care of the nonlinear nature of the equations used in the model. The usual hypotheses have been used for the establishment of the nonlinear partial differential equation. Velocity profile (Newtonian, Cassonian fluid) and membrane resistance have been taken into account. Theoretical results have been compared with those obtained by the advanced front theory. Experimental results with several types of device are presented using either blood or saline. Boundary conditions are analysed. Comparisons between theory and results of experiments are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442764
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  • 12
    Electronic Resource
    Electronic Resource
    Numerical analysis and linear theory of pulsatile flow in cylindrical deformable tubes: The testing of a numerical model for blood flow calculation (1982)
    Springer
    Medical & biological engineering & computing 20 (1982), S. 49-57 
    Details
    ISSN: 1741-0444
    Keywords: Haemodynamics ; Modelling ; Pulsatile flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract The purpose of this paper is to present standard results on the effect of nonlinearities on the computed pulsatile flow in a cylindrical distensible tube as a first stage in the calculation of flow in a tapered tube and blood flow in arteries. The calculations are made using the pressure-radius relationship of a rubber tube with no longitudinal motion and for a linearised relationship. The one-dimensional equations of motion are solved by the method of finite differences. The values of skin friction that are incorporated are determined from the vorticity and continuity equations for a rigid tube and a correction made to the current diameter at each time step. The accuracy of the results is assessed and the effect of varying parameters investigated. The method is applied to a segment of an infinite tube for which the linear analytical solution is available. The characteristics of the velocity wave calculated from an input pressure wave are presented as departures from the linear theory values of these characteristics, the wave speed, flux and transmission factor per wavelength. Computations are made at values of non-dimensional frequency (Stokes number α) of about 3 and 10. It is concluded that as far as physiological application is concerned (i.e. small amplitude and long wavelength) the results of linear theory are a very good first approximation for the cylindrical tube. At α=10, the relative departure of wave speed is about 0·5 times the relative diameter amplitude ( $${{\hat D} \mathord{\left/ {\vphantom {{\hat D} {\bar D}}} \right. \kern-\nulldelimiterspace} {\bar D}}$$ amplitude/mean diameter) when the pressure-radius relation is linear and the pressure and velocity waves have the same characteristics. At α=3 the corresponding wave speed departure is about 0·1 $${{\hat D} \mathord{\left/ {\vphantom {{\hat D} {\bar D}}} \right. \kern-\nulldelimiterspace} {\bar D}}$$ . The relative departure of the flux is less than 0·05 $${{\hat D} \mathord{\left/ {\vphantom {{\hat D} {\bar D}}} \right. \kern-\nulldelimiterspace} {\bar D}}$$ at α=3 and about 0·5 $${{\hat D} \mathord{\left/ {\vphantom {{\hat D} {\bar D}}} \right. \kern-\nulldelimiterspace} {\bar D}}$$ at α=10. The transmission coefficient has a relative departure of less than 0·05 $${{\hat D} \mathord{\left/ {\vphantom {{\hat D} {\bar D}}} \right. \kern-\nulldelimiterspace} {\bar D}}$$ at α=10 and its relative increase at α=3 is about 0·3 $${{\hat D} \mathord{\left/ {\vphantom {{\hat D} {\bar D}}} \right. \kern-\nulldelimiterspace} {\bar D}}$$ .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02441850
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  • 13
    Electronic Resource
    Electronic Resource
    Interpretation of venous occlusion plethysmographic measurements using a simple model (1984)
    Springer
    Medical & biological engineering & computing 22 (1984), S. 12-18 
    Details
    ISSN: 1741-0444
    Keywords: Electrical impedance plethysmography ; Limb blood flow ; Modelling ; Venous occlusion plethysmography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract A model is developed to interpret changes in limb volume measured during venous occlusion plethysmography. The parameters of the model are chosen to represent, as closely as possible, physiological variables related to blood flow within the limb. These parameters are shown to be related to various parameters derived by other investigators for interpreting the same measurements. An experiment is reported in which these changes in volume are inferred from measurements of the electrical resistance of limbs. It is shown that the model can accurately represent such changes in volume. A further experiment is reported which demonstrates how changes in the model parameters are related to changes in the circulatory system within a laboratory model of a limb.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02443739
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  • 14
    Electronic Resource
    Electronic Resource
    Design of a control system for maintaining a normal arterialpCO2 by artificial respiration (1984)
    Springer
    Medical & biological engineering & computing 22 (1984), S. 418-425 
    Details
    ISSN: 1741-0444
    Keywords: Artificial respiration ; Control system design ; Modelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract The paper describes the design of a feedback control system which maintains the arterial pCO2 near the normal level during artificial respiration in spite of disturbances in variables such as the CO2 production rate, the dead space and blood flow. Five models were used to analyse the control system. Using the linear model, a proportional controller with a lag/lead compensator was designed to satisfy the requirements derived from the performance of the biological respiratory system. Digital simulation confirmed that the control system responds well to the above mentioned disturbances and that it is little affected by parameter variations in the control system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02447701
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  • 15
    Electronic Resource
    Electronic Resource
    Mathematical model of arterial stenosis (1980)
    Springer
    Medical & biological engineering & computing 18 (1980), S. 281-286 
    Details
    ISSN: 1741-0444
    Keywords: Atherosclerosis ; Biomechanics ; Blood flow ; Modelling ; Stenosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract A mathematical model for pulsatile flow in a partially occluded tube is presented. The problem has applications in studying the effects of blood flow characteristics on atherosclerotic development. The model brings out the importance of the pulsatility of blood flow on separation and the stress distribution. The results obtained show fairly good agreement with the available experimental results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02443380
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  • 16
    Electronic Resource
    Electronic Resource
    Lumped-parameter model for haemodialyser with application to simulation of patient-artificial-kidney system (1980)
    Springer
    Medical & biological engineering & computing 18 (1980), S. 179-188 
    Details
    ISSN: 1741-0444
    Keywords: Artificial kidney ; Haemodialysis ; Modelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract A simple lumped-parameter mathematical model is developed for analysing the performance of a haemodialyser. Analytical solutions are derived for the exit concentration of solute in blood leaving the haemodialyser. A method of ana priori estimation of the model parameters is suggested. The validity of the model is illustrated by comparing it with the numerical solution of more exact 2-dimensional models and some experimental data on commercial dialysers. The utility of the model is illustrated by an application to the simulation of a patient-artificial-kidney system, wherein compact analytical expressions are shown to describe the whole complex system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02443292
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  • 17
    Electronic Resource
    Electronic Resource
    The effect of the skin friction on the solution of the one-dimensional equations of pulsatile flow in distensible tubes (1981)
    Springer
    Medical & biological engineering & computing 19 (1981), S. 79-82 
    Details
    ISSN: 1741-0444
    Keywords: Haemodynamics ; Modelling ; Pulsatile flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract The one-dimensional equations are used in the calculation of blood flow in arteries. The majority of the treatments use the method of characteristics and because of the nature of the method it is necessary to use a simplified value of the skin friction. A commonly used simplification is to assume the zero frequency value of the skin friction. The effect of the use of this approximation is compared with results using the full linear theory value. It is shown that the phase difference between the skin friction and the flux has an appreciable effect on the velocity wave calculated from a given pressure wave.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02443851
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  • 18
    Electronic Resource
    Electronic Resource
    Multioscillator simulator for gastrointestinal electrical activity modelling (1983)
    Springer
    Medical & biological engineering & computing 21 (1983), S. 591-598 
    Details
    ISSN: 1741-0444
    Keywords: Electrical activity ; Gastric ; Modelling ; Oscillators ; Simulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract The paper describes a coupled 64-oscillator electronic simulator for modelling electrical slow-wave activity in the mammalian gastrointestinal digestive tract. The individual oscillator dynamics are based on an electronic implementation of the Hodgkin-Huxley membrane equations. The simulator is constructed to allow for versatility in terms of setting oscillator waveshapes and frequencies and intercoupling parameters. It also allows for automatic readout of the model frequency profile, which is one of the main features studied in gastrointestinal electrical activity. Results are shown illustrating frequency plateaus in a coupled chain of oscillators which have a frequency gradient when uncoupled. Frequency entrainment is also shown for the simulator connected as a tubular structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442385
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