Stratocumulus simulation in a 2D Large Eddy Simulation (LES) model is performed, using the CSU−CIMMS LES written by Marat Khairoutdinov and Yefim Kogan. The simulation is for an idealized nighttime stratocumulus−topped PBL described by the initial conditions as given in the Global Energy and Water Cycle Experiment Cloud System Study (GCSS) results paper (C.−H. Moeng, et. al. 1996.) The GCSS stu...

Introduction Polymer gel dosimeters offer a practical solution to 3D dose verification for conventional radiotherapy as well as intensity-modulated and stereotactic radiotherapy. In this study, EGSnrc calculated and PAGAT polymer gel dosimeter measured dose profiles from single shot irradiation with 18 mm collimator of Gamma Knife in homogeneous and inhomogeneous phantoms were compared with eac...

Operations in a D&D environment are in most cases one of a kind meaning that return of experience is only marginally available for some operations. The problem of being confronted with new environments, operations and risks can be partly solved by the use of a 3D simulation tools combining dose assessment and human motion simulation. This presentation will show how a combined use of a 3D dose a...

Stochastic seismic inversion is a family of inversion algorithms in which the inverse solution was carried out using geostatistical simulation. In this work, a new 3D stochastic seismic inversion was developed in the MATLAB programming software. The proposed inversion algorithm is an iterative procedure that uses the principle of cross-over genetic algorithms as the global optimization techniqu...

SAR simulators are important for a huge variety of applications. Realistic SAR simulations need realistic 3D models, which are often not available. Less realistic models can be used in the less accurate real-time simulation approach. Using modern graphic cards for SAR simulation even complex environments can be simulated in real-time. This is realised by implementing of SAR geometry and radiome...

We present a simulation system that can simulate a three-dimensional urban model over time. The main novelty of our approach is that we do not rely on land-use simulation on a regular grid, but instead build a complete and inherently geometric simulation that includes exact parcel boundaries, streets of arbitrary orientation, street widths, 3D street geometry, building footprints, and 3D buildi...

cage roll forming is one of the new methods of cold roll forming process which is widely used for producing erw pipes. in addition to less production cost and time, using cage roll forming provides smooth deformation on the strip. few studies can be found about cage roll forming because of its complexity, and the available knowledge is more experience-based and not science-based. in this paper,...

Most of the Iranian oil and gas wells in the Persian Gulf region are producing through their natural productivity and, in the near future, the use of stimulation methods will be undoubtedly necessary. Hydraulic fracturing as a popular technique can be a stimulation candidate. Due to the absence of adequate research in this field, numerical simulation can be an appropriate method to investigate ...

We developed an efficient computation scheme for the phase-field simulation of grain growth, which allows unlimited number of the orientation variables and high computational efficiency independent of them. Large-scale phase-field simulations of the ideal grain growth in two-dimensions (2D) and three-dimensions (3D) were carried out with holding the coalescence-free condition, where a few tens ...