Nuclear Magnetic Resonance and Hyperfine Structure

Contains research objectives and reports on one research project

Nuclear Magnetic Resonance and Hyperfine Structure

Contains reports on four research projects

Nuclear Magnetic Resonance and Hyperfine Structure

Contains research objectives and reports on two research projects

Nuclear Magnetic Resonance and Hyperfine Structure

Contains reports on four research projects

Multiobjective, preference-based search in acyclic OR-graphs

We consider the problem of determining a most preferred path from a start node to a goal node set in an acyclic OR-graph, given a multiattribute preference function, a multiobjective reward structure, and heuristic information about this reward structure. We present an algorithm which is shown to terminate with a most preferred path, given an admissible heuristic set. The algorithm illustrates how Artificial Intelligence techniques can be productively employed to solve multiobjective problems.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/30207/1/0000597.pd

Nuclear Magnetic Resonance and Hyperfine Structure

Contains reports on two research projects

Nuclear Magnetic Resonance and Hyperfine Structure

Contains reports on three research projects

TEM Cell Testing of Cable Noise Reduction Techniques from 2 MHz to 200 MHz -- Part 2

This paper presents empirical results of cable noise reduction techniques as demonstrated in a TEM cell operating with radiated fields from 2 - 200 MHz. It is the second part of a two-paper series. The first paper discussed cable types and shield connections. In this second paper, the effects of load and source resistances and chassis connections are examined. For each topic, well established theories are compared to data from a real-world physical system. Finally, recommendations for minimizing cable susceptibility (and thus cable emissions) are presented. There are numerous papers and textbooks that present theoretical analyses of cable noise reduction techniques. However, empirical data is often targeted to low frequencies (e.g. 100 MHz). Additionally, a comprehensive study showing the relative effects of various noise reduction techniques is needed. These include the use of dedicated return wires, twisted wiring, cable shielding, shield connections, changing load or source impedances, and implementing load- or source-to-chassis isolation. We have created an experimental setup that emulates a real-world electrical system, while still allowing us to independently vary a host of parameters. The goal of the experiment was to determine the relative effectiveness of various noise reduction techniques when the cable is in the presence of radiated emissions from 2 MHz to 200 MHz

Nuclear Magnetic Resonance

Contains research objectives and reports on five research projects

Nuclear Magnetic Resonance and Hyperfine Structure

Contains reports on five research projects