However, the interpretation of such tests is often very basic, with the result that decision makers and professionals commonly face unreliable results through hasty and empirical interpretation. Elsass, J.Īrtificial tracer tests are widely used by consulting engineers for demonstrating water circulation, proving the existence of leakage, or estimating groundwater velocity. TRAC, a collaborative computer tool for tracer-test interpretation First, we based our methodology on the latest research on design thinking, cognitive learning, and Our research team developed a visualization design methodology to create effective.visualizations that support an analysis story. to analyze visualizations used to support an analysis story. Currently, TRAC does not have a methodology. Therefore, TRAC analysts need a way to analyze the effectiveness of their visualization design choices. QUANTUMWISE DIAGONALIZATION ERROR REGISTRATIONThis report discusses the TRAC sensor registration problem. After the motion, the algorithm determines the transformation matrix from the robot end effector to the camera image plane. The automatic calibration algorithm requires the operator to translate and rotate the robot arbitrary amounts along (about) two coordinate directions. A simple example is if the robot operator thinks the camera is right side up but the camera is actually upside down, the camera feedback will tell the operator to move in an incorrect direction. In addition, if the camera is significantly far from the alignment it is expected to be at, TRAC may give incorrect feedback for the control of the robot. If this location is in error, then the robot may not be able to grapple an object even though the TRAC sensor indicates it should. Previously, when TRAC operated on the end of a robot arm, the camera had to be precisely located at the correct orientation and position. The registration problem is important to solve if TRAC images need to be related to robot position. In the robotics literature this is known as the sensor registration problem. QUANTUMWISE DIAGONALIZATION ERROR HOW TOThe work reported here demonstrates how to automatically compute the position and attitude of a targeting reflective alignment concept ( TRAC) camera relative to the robot end effector. We also discuss how Trac-III can be modified to simulate the wire array Z-pinch. Lastly, we introduce Trac-III, a 3-D MHD code, and illustrate the m = 1 or ``kink'' instability. Special emphasis is placed on trying to explain how instability growth affects the performance of the Z-pinch. In the r-θ plane we examine the merging behavior between neighboring wires. In the r- z plane we examine the growth of the m = 0 or ``sausage'' instability in single wires within the array. Then, using these results as initial radial conditions in 2-D, we investigate the dynamics of wire array configurations in the r-z and r-θ plane. First, in 1-D we examine the behavior of a single wire in the Z-pinch. QUANTUMWISE DIAGONALIZATION ERROR GENERATORSpecifically, Trac-II is used to study the wire array Z-pinch at the PBFA-Z pulse power generator at Sandia National Laboratory. These changes permit a detailed study of fiber and wire array Z-pinches. QUANTUMWISE DIAGONALIZATION ERROR CODERecent modifications to the code include the addition of the 3-T radiation model, a 4-phase (solid- liquid-vapor-plasma) equation of state model (QEOS), a 4- phase electrical/thermal conductivity model, and an implicit solution of poloidal (Bz,Br) magnetic field diffusion. In addition, it can optionally include a self-consistent external circuit. It simulates all three spatial components (r, z, φ) of the magnetic field and fluid velocity vectors, and the plasma is treated as a single fluid with two temperatures (Te,Ti). Trac-II is a two dimensional axisymmetric resistive MHD code. Numerical simulation of fiber and wire array Z-pinches with Trac-II
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |