scholarly journals DEVELOPMENT AND FIELD VALIDATION OF A 2DH CURVILINEAR STORM IMPACT MODEL

2012 ◽  
Vol 1 (33) ◽  
pp. 120 ◽  
Author(s):  
Dano Roelvink ◽  
Guus Stelling ◽  
Bas Hoonhout ◽  
Johan Risandi ◽  
Walter Jacobs ◽  
...  
Keyword(s):  
Validation Study ◽  
Impact Model ◽  
Field Validation ◽  
Curvilinear Grids ◽  
Morphological Model ◽  
Circular Island ◽  
Storm Impact ◽  
Finite Volume Approach ◽  
2D Model ◽  
Better Than

The formulations of the 2DH process-based, nearshore morphological model XBeach were extended to allow for curvilinear grids using a finite volume approach. The formulations were tested for schematic cases such as a circular island and a field validation study was carried out for the case of storm erosion during a construction phase of the soft sea defense of the Maasvlakte-2 extension of Rotterdam port. It was found that the 2D curvilinear version performs significantly better than individual 1D runs. The overall skill of the 2D model for this case can be classified as 'reasonable' while the prediction of the erosion can be classified as 'good'.

ICOAST – DID THE COAST CHANGE?: STORM-IMPACT MODEL VERIFICATION USING CITIZEN SCIENTISTS

2019 ◽  
Author(s):  
KAREN L.M. MORGAN ◽  
NATHANIEL G. PLANT ◽  
HILARY STOCKDON ◽  
RICHARD J. SNELL
Keyword(s):  
Model Verification ◽  
Impact Model ◽  
Storm Impact

Field Validation Study of the MDA® Instant Working Level Meter in a High Gamma Background Mine Environment

AIHAJ ◽  
1984 ◽  
Vol 45 (10) ◽  
pp. 708-713
Author(s):  
STEVEN D. ENGLEMAN ◽  
HARRY J. BEAULIEU ◽  
ROBERT H. KING
Keyword(s):  
Validation Study ◽  
Field Validation ◽  
Gamma Background ◽  
Mine Environment ◽  
High Gamma ◽  
Level Meter

Evaluation of a Revised U.S. Food and Drug Administration Method for the Detection of Cronobacter in Powdered Infant Formula: A Collaborative Study

2012 ◽  
Vol 75 (6) ◽  
pp. 1144-1147 ◽  
Author(s):  
YI CHEN ◽  
KATHY E. NOE ◽  
SANDRA THOMPSON ◽  
CAROL A. ELEMS ◽  
ERIC W. BROWN ◽  
...  
Keyword(s):  
Infant Formula ◽  
Drug Administration ◽  
Validation Study ◽  
Food And Drug Administration ◽  
Collaborative Study ◽  
Powdered Infant Formula ◽  
Biochemical Tests ◽  
Administration Method ◽  
Vitek 2 ◽  
Better Than

A revised U.S. Food and Drug Administration (FDA) method for the isolation and detection of Cronobacter from powdered infant formula was recently developed, which combines real-time PCR, chromogenic agars, and RAPID ID 32E biochemical tests. This method provides an expedient analysis within 24 to 48 h. A collaborative validation study involving four different laboratories was conducted to compare the revised FDA method with the reference FDA method using casein- and soy-based powdered infant formula inoculated with different Cronobacter strains. Valid results from 216 test portions and controls from collaborating laboratories were obtained and showed that the revised FDA method performed significantly better than the reference FDA method. Newly revised PCR protocols and VITEK 2 were also evaluated to be integrated into the complete detection procedure.

scholarly journals MODELLING OVERWASH AND INFILTRATION ON GRAVEL BARRIERS

2012 ◽  
Vol 1 (33) ◽  
pp. 34 ◽  
Author(s):  
Robert Timothy McCall ◽  
Gerd Masselink ◽  
Dano Roelvink ◽  
Paul Russell ◽  
Mark Davidson ◽  
...  
Keyword(s):  
Time Series ◽  
Hydraulic Conductivity ◽  
Physical Model ◽  
Model Experiment ◽  
Large Scale ◽  
Coupled Model ◽  
Time Dependent ◽  
Groundwater Model ◽  
Impact Model ◽  
Storm Impact

A quasi-3D process-based and time dependent groundwater model is developed and coupled to a hydrodynamic storm impact model to simulate the effect of infiltration on overwash on a gravel barrier. The coupled model is shown to accurately reproduce groundwater variations, runup properties and overwash time series measured in the gravel barrier during a large-scale physical model experiment. The coupled model is applied to study the influence of hydraulic conductivity on overwash volumes. It is shown that modeled overwash volumes are significantly affected by infiltration for hydraulic conductivity values greater than 0.01ms-1.

A Verification and Validation Study of the Cyclops I PBX 9502 Experiment

2020 ◽  
Author(s):  
John W. Grove ◽  
Adam C. Coleman ◽  
Carl E. Johnson ◽  
Ralph Menikoff
Keyword(s):  
Validation Study ◽  
High Explosive ◽  
Verification And Validation ◽  
Proton Radiography ◽  
First Order ◽  
Solution Convergence ◽  
Convergence Study ◽  
Photon Doppler Velocimetry ◽  
Shock Fronts ◽  
Better Than

Abstract A computational verification and validation study of the Cyclops I experiment [1–7] was conducted using the Los Alamos Eulerian Applications code xRage [8]. The purpose of this study was to validate the Scaled Unified Reactive Front (SURF) plus (SURFplus) model for insensitive high explosives [9–12]. Diagnostics from the experiment included photon doppler velocimetry measurements of the encasing shell for the device and proton radiography photographs of the explosions. This data was compared to the xRage computed data and a convergence study of burn front evolution was conducted. We conclude that the SURFplus high explosive model does an excellent job at predicting the high explosive burn front velocity and shape with results that converge to the experimental data at rates near to or better than first order in most cases. Some companion verification metrics for the solution convergence are also described. These metrics show that the xRage computed solution for the high explosive burn front converges to first order or better, as consistent with the treatment of shock fronts in a higher order Godunov hydrodynamic solver as used in xRage.

Monitoring of Rattus norvegicus based on non-toxic bait containing encapsulated fluorescent dye: Laboratory and semi-field validation study

2015 ◽  
Vol 64 ◽  
pp. 103-108 ◽  
Author(s):  
Marcela Frankova ◽  
Barbora Kaftanova Eliasova ◽  
Pavel Rodl ◽  
Radek Aulicky ◽  
Daniel Frynta ◽  
...  
Keyword(s):  
Validation Study ◽  
Rattus Norvegicus ◽  
Fluorescent Dye ◽  
Field Validation
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