MMA Memo 190 : A System Design for the

MMA Memo 165: System Design Considerations for the Atacama Array

MMA Memo 194 Astronomical Capabilities ofthe Current Design for theMillimeter Array

MMA Memo 164 : MMA Computing Working Group Report

The variability of both calibrators and the atmosphere at millimeter and sub-millimeter wavelengths and the potential complexity of the MMA require that the computer control system for the MMA be much more sophisticated than present day instruments. We propose an instrument where the astronomer will interact with the instrument by specifying scientific goals rather than instrumental parameters ...

ISOGEOMETRIC TOPOLOGY OPTIMIZATION OF STRUCTURES BY USING MMA

The Isogeometric Analysis (IA) method is applied for structural topology optimization instead of the finite element method. For this purpose, the material density is considered as a continuous function throughout the design domain and approximated by the Non-Uniform Rational B-Spline (NURBS) basis functions. The coordinates of control points which are also used for constructing the density func...

Mma Project Book, Chapter 7 Section 2 Local Oscillators: Multiplier System Table 7.2.1 Lo Multiplier System Specifications Item Specification Power Output ~100 Microwatts per Receiver

This section describes a Local Oscillator (LO) system using modern multiplier chains. The conventional approach to generating local oscillator (LO) power for millimeter and submillimeter wave heterodyne mixers is to generate power at a lower frequency using a suitable phase-locked source, and to convert this power to the desired commensurate frequency using a nonlinear diode such as a varactor ...