cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.4121/uuid:fe47c333-2965-4466-9f31-c2a4fac1709d
title: Damage on rock slopes under wave attack

description: The aim of this study is the particularisation of the accuracy margins for the determination of the damage level in the experimental plan proposed by Remon Kik at his thesis for the study of Notional Permeability of breakwaters “The experimental research of the permeability factor P”. The evaluation of the proposed technique took place by means of comparisons between different test cases in order to specify the existence of similarities in the statistical behaviour of original tests and their repetitions. Therefore, statistical tests are used to examine the behaviour of the individual tests not only individually, but also in combination with the rest of the test components.
DOI: 10.4121/uuid:0ba04590-0c47-4e0c-80eb-979b2cc08e0c
title: The influence of flow acceleration on stone stability

description: By carrying out experiments in a flume containing a local contraction, the stone stability in an accelerated flow is investigated. In the contraction the stability of two different stone sizes, subject to different velocity-acceleration combinations, is analysed. If the hypothesis is correct, than for some velocity-acceleration combinations movement occurs while for the same velocity combined with a lower acceleration no movement occurs. The shear stress occurring in the accelerated flow is determined using the shear velocity. According to the classical Shields method the shear velocity is responsible for the movement of the stones. Movement is detected for lower shear velocities then expected. According to the hypothesis this is a result of the extra generated force on the stones due to acceleration.
DOI: 10.4121/uuid:1747358c-2a44-4fdd-8fe8-108ae026dcc7
title: Vetiver grass as bank protection against vessel-induced loads

description: Measured erosion rates in the lab in a clay mixture with roots of Vetiver grass under attack of small waves. Tests were done on prototype scale.
DOI: 10.4121/uuid:2a22fd45-1cff-478c-9596-0abd4db4d7d1
title: The northern sea defence of Maasvlakte 2

description: Wave data and cost values for the northern sea defence of the Maasvlakte2 expansion project, Netherlands
DOI: 10.4121/uuid:61ef66cf-eb5f-4108-a690-d49aacfd1323
title: Geometrically open filters in breakwaters

description: Model tests on wave effect on a sand layer under a rock armour layer. Nine process based model tests have been performed with regular waves with a height of 10 cm and a period of 1.2 s. The first two experiments were used to tune the test setup. The other seven experiments had different thickness of the filter layer (df) and different grain size (Df50) of the filter material. Due to limitations in time and availability of the facilities other parameters then the df and Df50 such as the wave height and the slope steepness have been kept constant at a value which is typical for breakwaters or wind waves.
DOI: 10.4121/uuid:76a99f73-b670-4df9-bc38-72477a1f30eb
title: Influence of foreshore steepness on wave velocity and acceleration at the breakwater interface

description: In order to investigate which parameters, other than the parameters included in the wave energy density spectrum could play a role in the increase in damage for a steep foreshore, an experiment was conducted. In the wave flume of the Fluid Mechanics Laboratory an experimental test set up was constructed. The test setup consisted of a breakwater build on variable foreshore steepnesses (1:30, 1:15 and 1:8). Tests were conducted with regular waves, were the wavelength and the wave steepness at the toe of the breakwater were kept constant per individual test. These tests were conducted for the three different foreshore steepnesses. Wave runs were completed for different wave heights and wave steepnesses. Each experiment was repeated in order to increase the accuracy. At the breakwater the wave velocity and acceleration was measured with zero buoyant particles. The particles were monitored with a video camera.
DOI: 10.4121/uuid:79a0044c-1e59-42b4-a90e-f19e97052f3d
title: Influences of fluid accelerations on the threshold of motion

description: Experiment to measure stone stability under accelarating flow. During the experiment 78 test series have been performed with changing wave steepnesses in order to create scenarios of similar horizontal near-bed velocities, but with different accelerations. Another 22 of such tests series have been carried out with stones that have a smaller diameter. It has been assumed that if there is a relation between the threshold of motion and accelerations then for some combinations of a velocity and acceleration there are stones that move while in other cases with the same near-bed velocities, but a lower acceleration, there will be no movement of the same stones.
DOI: 10.4121/uuid:2e453b6d-71dd-44a5-a76e-f7b95a875fe7
title: Toe structures of rubble mound breakwater : stability in depth limited conditions

description: Model experiments additional to the tests of Gerding. Dataset contains final results of measurements. Focus on shallow water conditions
DOI: 10.4121/uuid:30fae9c4-d107-4c22-b557-c2efd01cbba8
title: Het valgedrag van stortsteen onder invloed van stroming

description: Flume test and basin test on dumping of stones from a side stone dumper. measurement of fall velocities, location of the stones, pictures and video of the fall process
DOI: 10.4121/uuid:42debadb-a0e6-4b47-a941-136864b7ddee
title: Experimental research on the stability of the armour and secondary layer in a single layered tetrapod breakwater

description: Physical model tests were done on an armour of Tetrapods, placed in a single layer. The objective of the investigations was to study the stability of the secondary layer, and to see if the material of this secondary layer could be washed out through the single layer of Tetrapods. It was concluded that secondary armour is not washed out through an undamaged layer of Tetrapods, and that all damage to the secondary layer is related to damage in the primary layer. To prevent damage to the Tetrapod layer, a high placing density is needed. In case of low placing density, the area around the waterline will slide down, creating gaps in the main armour and exposing the secondary layer. Because of this process the placing density in lower sections of the breakwater increases, and consequently also the strength increases at those places.
DOI: 10.4121/uuid:521e57bf-cecd-4f84-a55e-bb09b5f0ee5e
title: Stabiliteit van het achtertalud van een rubble mound golfbreker

description: Measurement of stone stability at the rear side of a breakwater due to overtopping waves. Model tests with an overtopping simulator. Measured velocties and moved stones. Video
DOI: 10.4121/uuid:6bd3d2b8-07e9-4742-a6fb-c78179c6a476
title: The influence of flow acceleration on the stability of stones

description: Measurement of stability of stones in accelarated flow; follow up of the dataset of Dessens. An attempt is made to quantify the difference in velocity of the accelerated situation with the velocity of a uniform situation for which the same amount of stone movement would occur. With the help of the 7 stages of movement defined by Breusers (1969) a translation is made from the amount of moved stones in the experiments to the Shields number that represents this amount of movement. With this Shields (1936) parameter the critical velocity can be calculated for which this amount of movement occurs in uniform flow conditions. This velocity will be compared with the velocity measured in the experiments. A shift in velocities should occur between the average velocity of the accelerated flow and the average calculated velocity for a uniform flow.
DOI: 10.4121/uuid:6ecd01eb-b5f4-4eb6-88fc-764b67969cde
title: Wave attenuation in mangrove wetlands. Red River Delta, Vietnam

description: Field measurements of wave transmission in mangrove fields, data with focus on mangrove density.
DOI: 10.4121/uuid:7fa553dd-0cd0-421a-9904-7275a69c5bc0
title: Wave overtopping aspects of the Crest Drainage Dike

description: Measurement of the decrease of over-topping due to a small ditch in the crest of a dike which is drained to the inner side or outer side of the dike.
DOI: 10.4121/uuid:c032b818-681f-4fbb-a395-84ab9d07ed42
title: Theoretical and Experimental study on the placement of Xbloc

description: Placement tests of Xbloc on a model with a realistic placement method. Results of the placement. To design a placement grid for a head a theoretical model has been built, which is capable to design a grid on irregular breakwater profiles. This model is been tested in an experimental study. The proposed placement model proved to predict stable unit positions even for breakwater heads.
DOI: 10.4121/uuid:dfedfa35-cfdc-4d61-bf65-f71394b1700a
title: Steenstabiliteit in een turbulente stroming achter een afstap

description: measurement of stone transport behind a backwards facing step in a scale model in the lab. Measurement of flow and turbulence
DOI: 10.4121/uuid:f366b419-c704-4c40-8b3f-8f5f77cfd52a
title: Safety assessment of sea dikes in Vietnam; a case study in Namdinh Province

description: Dataset with coastal data from Vietnam, cross sections of many Vietnamese seadikes; economical data of the coastal zone
DOI: 10.4121/uuid:fbe0031d-c5d9-4b3e-b559-58f16796d142
title: Het stortgedrag van een schuifstorter

description: Collected data and video shots of a lab experiment in dumping stone from a side stone dumping vessel on a slope
DOI: 10.4121/uuid:0a3ba390-1824-428a-8eeb-c51e659467ef
title: Proefeiland IJburg: Bepaling theoretisch zandtraject tijdens sproeiproces

description: Berekening en calibratie van de mengselstroomsnelheid van een sproeiponton (voor het project IJburg), data en software
DOI: 10.4121/uuid:275e7fb9-d60d-46ee-85c8-01c29ecdf4f2
title: Scour below the toe of breakwaters: Investigation of scour formation through a geometrically open filter configuration located at the toe of a rubble mound breakwater lying upon sand

description: measurements of scour under an geometrically open filter at the toe of a breakwater. tests executed at the laboratory of BAM in Utrecht.
DOI: 10.4121/uuid:2ef90513-d461-4ffe-9db0-5b9a439995e5
title: The influence of armour layer and core permeability on the wave run-up

description: To investigate the influence of the factors on which the parameter P in de Van der Meer formula for breakwater stability depends, physical model tests have been conducted. The tests were carried out in the wave flume in the water laboratory at Delft University of Technology. On four different configurations (smooth impermeable slopes, rough impermeable slope, armour layer on an impermeable core and permeable core) tests were conducted.
DOI: 10.4121/uuid:34e98d32-fa4e-412a-95c0-e2f7bd17caca
title: Morphologische Reaktion der Waal auf Baggermaßnahmen

description: Veldonderzoek naar het effect van baggermaatregelen (zowel baggeren als storten) in de Waal op de morfologie van de rivier. Dataset bevat dieptegevens van de rivier de Waal.
DOI: 10.4121/uuid:3588e9d8-89e0-49d7-8ac1-d156f29863df
title: Cobble Sea Defence: Hydraulic Interface Stability of Sand underlying a Single Filter Layer

description: A cobble sea defence appears to be an easy constructible protection, with relatively low total costs of ownership. Flume tests show that sand under such single layered constructions is stable. However, it is not exactly known how the hydraulic loading of a breaking wave is reducing in the filter. Two datasets containing pressure measurements in a revetment were available for identification of this reduction. The first set is a dataset of a test performed in the Großer Wellenkanal (Hannover), for improvement of the understanding of all relevant processes in Elastocoast revetments (obtained from the Braunschweig University of Technology). The second set was a Deltares set (not included)
DOI: 10.4121/uuid:44214945-4088-4d36-9d87-e68e0e13c95a
title: Closim, a simulation program on the closure of tidal basins

description: The program CLOSIM has been written to simulate the practice of the closure of tidal basins. It has not been the aim of the program to provide a new design application or to have any scientific value with respect to the results of the calculations. The simulations should rather give insight in the way closures take place, and in the problems that might be encountered when closing the connection between a tidal basin and the sea. The dataset contains the software and the data used in calculations.
DOI: 10.4121/uuid:469fcad7-25df-455d-afde-ed6ca72789ec
title: Static and dynamic loads on the first row of interlocking, single layer armour units

description: Study on the load on the first layer of interlocking blocks. Forces on the first row were measured an analyzed using a force meter implemented in an artificial toe structure in a physical model at the BAM laboratory in Utrecht.
DOI: 10.4121/uuid:47c3dee1-6267-4fb4-9b89-800f75e9fda1
title: Modelling bowthruster induced flow near a quay-wall

description: For the calculation of bottom protection in harbours near quay-walls, analytical formulas are used. The current experiences suggest an overestimation of load on the harbour bottom. Extensive measurements in prototype situations are very expensive. For this reason, the use of a computer model will be far more economical. However, at this moment there is no expertise in the use of numerical models for this type of situation. For this reason, a physical model was made to validate the use of the numerical model. The results of the measurements of Nielsen were not conclusive, because the two models did not match. A sensitivity analysis of the numerical model showed that the model is sensitive to changes in the geometry. Especially the changes to the geometry of the bowthruster caused large differences in the calculation results of the model. For the thruster outflow to be modelled accurately, measurements needed to be done in the physical model. Measurements are executed in a scale model, velocities and turbulence are measured with a Vectrino around the bow truster. The measurements revealed an unexpected aspect of the flow situation. The low velocity core behind the screw axis was expected to collapse within a certain distance. The measurement results show the core to exist beyond this distance and its contribution to the distribution of the velocities from the bowthruster. Even though this raises new questions, the adaptations to the bowthruster in the numerical model, reproduced the outflow of the physical model. The calculation results of this model were very comparable to the flow situation measured in the physical model. This gives some confidence for the use of the ke-model for modelling bowthruster-induced flows. It also shows the importance of modelling the bowthruster. When the outflow of the bowthruster does not match reality, large deviations are expected.
DOI: 10.4121/uuid:8ed1cae4-e1cd-419b-b9e6-159456000b98
title: Bow Thruster Currents at Open Quay Constructions on Piles

description: Research into hydraulic loads by a bow thruster. The hydraulic loads on the slope at an open quay construction on piles is investigated. The propeller (bow thruster) jet induces hydraulic loads on the bed, which could result in scour holes and damage to the quay construction. Performed scale model tests provide details about the hydraulic loads in this specific situation with an inclining slope and piles. Measurements are compared to the current engineering guidelines, to include in the design of open quay constructions on piles.
DOI: 10.4121/uuid:97dc4788-bda7-4f25-9f45-0f6c7f876ab5
title: Stability of rock on slopes under wave attack: Comparison and analysis of datasets Van der Meer [1988] and Van Gent [2003]

description: In VAN GENT [2004] graphs were presented in which the datasets of VAN DER MEER [1988] and VAN GENT ET AL. [2003] were compared, but in this comparison a number of parameters were not correctly transformed into a comparable format. In this M.Sc. thesis after an extensive analysis to the datasets all parameters of the datasets of Van der Meer were transformed into the same format as the parameters used by Van Gent. In the same way the dataset of THOMPSON & SHUTTLER [1975], which formed the basis of the work of Van der Meer, was treated. The inclusion of correction factors for the effects of stone roundness from LATHAM ET AL. [1988] gave remarkable effects on a certain part of the dataset of Van der Meer which showed more damage than average. After this still differences could be seen between the datasets of Van der Meer and Van Gent. Using the statistical T-test these differences are approved.
DOI: 10.4121/uuid:a274f26d-0e77-4661-a7cb-fef63fb06493
title: Wave overtopping: impact of water jets on grassed inner slope transitions

description: The project SBW ('Sterkte & Belastingen Waterkeringen' with respect to grassed inner slopes focuses on the improvement of reliable overtopping criteria for the present dike structures. Experiments are carried out using a wave overtopping simulator. This device is developed to create full scale overtopping conditions on a inner slope. Experiments show initiation of erosion of the grass layer downstream of the transition of the slope and a horizontal part. The focus of the present research is modelling of the erosion process at a transition. The erosion process is described by two different models. The Transition Model (TM) is derived to describe the development of the scour hole due to the impinging forces of the overtopping wave tongue, known as surface erosion; The SSEA (Sites Spillway Erosion Analysis) model is taken to describe the headcut erosion process which occurs after the scour hole has reached a certain depth. The TM is based on a oblique impinging jet and a depth variable strength profile, in where near the surface the root system dominates, whereas with increasing depths cohesion and internal friction of the clay dominates.
DOI: 10.4121/uuid:ed7d8116-0122-4cc5-9dd3-0c799240eeed
title: HISGIS: golvenmodel HISWA onder GIS pakket ARC/INFO

description: HISWA is een tweedimensionaal golvenmodel, dat de gebruiker in staat stelt diverse golfgegevens, zoals significante golfhoogte, periode en golfrichting, voor een bepaald modelgebied te bepalen. Op dit moment biedt HISWA al faciliteiten om pre- en postprocessing uit te voeren (zij het in beperkte mate). Onder de gebruikers echter is er behoefte aan meer en uitgebreidere mogelijkheden. Door de functionaliteiten op het gebied van weergave en analyse van gegevens, leent een GIS (Geografisch Informatie Systeem) zich uitstekend voor pre- en post-processing doeleinden.
DOI: 10.4121/uuid:76bf119b-e0a9-45d4-aae5-50dde12a5b2d
title: Loan application example, configuration 2

description: Loan application example, configuration 2 Parent item: Loan application example A collection of artificial event logs describing 4 variants of a simple loan application process. Variant 1 is the most complex process with parallelism and choices. The other 3 variants have a simpler, more sequential, control flow and some activities of variant 1 are missing or split into 2. These event logs are used to test different approaches of discovering a configurable process model from a collection of event logs.
DOI: 10.4121/uuid:8f235ec3-7dab-4c29-8f54-118da6d50e49
title: Loan application example, configuration 3

description: Loan application example, configuration 3 Parent item: Loan application example A collection of artificial event logs describing 4 variants of a simple loan application process. Variant 1 is the most complex process with parallelism and choices. The other 3 variants have a simpler, more sequential, control flow and some activities of variant 1 are missing or split into 2. These event logs are used to test different approaches of discovering a configurable process model from a collection of event logs.
DOI: 10.4121/uuid:cdf3ba31-291d-468d-9712-3a58ac6da3fc
title: Loan application example, configuration 1

description: Loan application example, configuration 1 Parent item: Loan application example A collection of artificial event logs describing 4 variants of a simple loan application process. Variant 1 is the most complex process with parallelism and choices. The other 3 variants have a simpler, more sequential, control flow and some activities of variant 1 are missing or split into 2. These event logs are used to test different approaches of discovering a configurable process model from a collection of event logs.
DOI: 10.4121/uuid:ce5e73ba-4087-4a7a-afb1-e442b4b6c0ec
title: Eclipse Third-party Plug-ins Source code

description: Eclipse third-party plug-ins source code
DOI: 10.4121/uuid:6d08bb83-f5f7-4373-b153-90eab7d5dee9
title: Corrected DEM of Binahaan catchment Philippines based on 90 m SRTM data

description: SRTM DEM optimized for hydrological modelling using the ILWIS DEM Optimization method implemented in PCRaster Python.
DOI: 10.4121/uuid:0162b739-d589-4e13-9dad-90dfb1facb2f
title: IDRA weather radar measurements - day 2012-08-13

description: Radar range: standard. Max rain level: moderate rain. Parent item: IDRA weather radar measurements - month 2012-08 Measuring instrument: IDRA atmospheric radar in CESAR observatory, Cabauw IRCTR has built a high resolution radar system, IDRA (IRCTR Drizzle Radar), aimed at the detailed observation of the spatial and temporal distribution of rainfall and drizzle. The system was placed at the end of August 2007 on top of a 213 m high meteorological tower in the CESAR (Cabauw Experimental Site for Atmospheric Research) observatory in Cabauw, The Netherlands. This location has several advantages: In the first place, an increased sensitivity due to the reduction of the influence of ground clutter. Secondly, it allows direct observation of the horizontal distribution of low level clouds and fog. Finally, the presence of other instruments in the vicinity enhances the understanding of the physical processes in the atmosphere by synergistically combining their measurements. Data from other instruments at CESAR are available at {http://www.cesar-database.nl}. IDRA provides the horizontal distribution of reflectivity, mean Doppler velocity, Doppler spectrum width and polarimetric parameters like differential reflectivity, linear depolarization ratio or specific differential phase. The data collected is freely available to the scientific community.
DOI: 10.4121/uuid:0205dcf0-055b-4860-a2aa-927ef3e57dcd
title: IDRA weather radar measurements - day 2012-09-25

description: Radar range: standard. Max rain level: moderate rain. Parent item: IDRA weather radar measurements - month 2012-09 Measuring instrument: IDRA atmospheric radar in CESAR observatory, Cabauw IRCTR has built a high resolution radar system, IDRA (IRCTR Drizzle Radar), aimed at the detailed observation of the spatial and temporal distribution of rainfall and drizzle. The system was placed at the end of August 2007 on top of a 213 m high meteorological tower in the CESAR (Cabauw Experimental Site for Atmospheric Research) observatory in Cabauw, The Netherlands. This location has several advantages: In the first place, an increased sensitivity due to the reduction of the influence of ground clutter. Secondly, it allows direct observation of the horizontal distribution of low level clouds and fog. Finally, the presence of other instruments in the vicinity enhances the understanding of the physical processes in the atmosphere by synergistically combining their measurements. Data from other instruments at CESAR are available at {http://www.cesar-database.nl}. IDRA provides the horizontal distribution of reflectivity, mean Doppler velocity, Doppler spectrum width and polarimetric parameters like differential reflectivity, linear depolarization ratio or specific differential phase. The data collected is freely available to the scientific community.