462 research outputs found
USE OF FLEET AVIATION ELECTRONIC ATTACK SQUADRONS FOR OPERATIONAL TEST AND EVALUATION OF NEXT GENERATION JAMMER MID-BAND (ALQ-249) PROGRAM
The purpose of this research is to analyze the potential advantages, disadvantages, and risks to cost, schedule, and performance of shifting the role of operational test and evaluation (OT&E) of the Next Generation Jammer Mid-Band (NGJ-MB) program from a dedicated OT&E squadron at Air Test and Evaluation Squadron Nine (AIRTEVRON NINE; VX-9) to a fleet aviation electronic attack squadron. The operational constraints of the modern Naval Aviation Enterprise (NAE) squadron to deploy as part of the warfighting force against a peer adversary is examined to identify the risks to the successful OT&E of the NGJ-MB program. My methodology includes examining fleet operational tempo and the Navy’s Optimized Fleet Response Plan scheduling, resourcing, training, proficiency, tactical expertise, and administration. A strengths, weaknesses, opportunities, and threats analysis, followed by a cost-effective analysis, are used to analyze the risks to test execution and reporting compared to VX-9. In the research conclusion, I recommend the more beneficial, efficient, and effective path to execute OT&E for the NGJ-MB program. The consequences to cost, schedule, and performance to the NGJ-MB program give high confidence that fleet aviation squadrons should not be tasked to perform OT&E. VX-9 should be properly resourced, funded, and supported by the Navy to assess the operational effectiveness and suitability of the NGJ-MB pod.Lieutenant Commander, United States NavyApproved for public release. Distribution is unlimited
Use of Fleet Aviation Electronic Attack Squadrons for Operational Test and Evaluation of Next Generation Jammer Mid-Band (ALQ-249) Program
Symposium Student Poster ShowThe purpose of this research is to analyze the potential advantages, disadvantages, and risks to cost, schedule, and performance of shifting the role of operational test and evaluation (OT&E) of the Next Generation Jammer Mid-Band (NGJ-MB) program from a dedicated OT&E squadron at Air Test and Evaluation Squadron Nine (AIRTEVRON NINE; VX-9) to a fleet aviation electronic attack squadron (VAQ).Approved for public release; distribution is unlimited
Light-cone QCD on the lattice
Ideas and recent results for light-front Hamiltonian quantisation of lattice
gauge theories.Comment: LATTICE99(Plenary), 5 pages, 3 figure
Efficient formation of deeply bound ultracold molecules probed by broadband detection
Using a non-selective broadband detection scheme we discovered an efficient
mechanism of formation of ultracold Cs molecules in deeply bound levels
() of their electronic ground state X. They are formed by
a one-photon photoassociation of ultracold cesium atoms in a manifold of
excited electronic states, followed by a two-step spontaneous emission cascade.
We were able to form about molecules per second in these low
vibrational levels of the ground state. This detection scheme could be
generalized to other molecular species for the systematic investigation of cold
molecule formation mechanisms.Comment: 4 page
Interference in Bohmian Mechanics with Complex Action
In recent years, intensive effort has gone into developing numerical tools
for exact quantum mechanical calculations that are based on Bohmian mechanics.
As part of this effort we have recently developed as alternative formulation of
Bohmian mechanics in which the quantum action, S, is taken to be complex [JCP
{125}, 231103 (2006)]. In the alternative formulation there is a significant
reduction in the magnitude of the quantum force as compared with the
conventional Bohmian formulation, at the price of propagating complex
trajectories. In this paper we show that Bohmian mechanics with complex action
is able to overcome the main computational limitation of conventional Bohmian
methods -- the propagation of wavefunctions once nodes set in. In the vicinity
of nodes, the quantum force in conventional Bohmian formulations exhibits rapid
oscillations that pose severe difficulties for existing numerical schemes. We
show that within complex Bohmian mechanics, multiple complex initial conditions
can lead to the same real final position, allowing for the description of nodes
as a sum of the contribution from two or more crossing trajectories. The idea
is illustrated on the reflection amplitude from a one-dimensional Eckart
barrier. We believe that trajectory crossing, although in contradiction to the
conventional Bohmian trajectory interpretation, provides an important new tool
for dealing with the nodal problem in Bohmian methods
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