Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"millimeter-wavelength"”.
-
Testing general relativity using millimeter wavelength radio interferometry of Sgr A*
… is difficult to test in the strong-field regime. Millimeter wavelength VLBI offers a unique opportunity to resolve the black hole structure on event-horizon scales. The ability of millimeter wavelength VLBI observations of Sgr A* to constrain black hole parameters such as mass, spin, and deviation …
-
Millimeter-wavelength remote sensing of the atmospheric structure and composition of Venus
… has been to further understanding of the millimeter-wavelength spectrum of Venus. Over 400 laboratory measurements have been made of the opacity of H2SO4 vapor at W, F, and Ka Band in mixtures containing up to 3 bars of CO2 at temperatures ranging from 535-585 K, simulating the conditions …
-
The millimeter-wavelength source catalog from the third-generation South Pole Telescope survey
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-08-01
-
Low frequency, millimeter wavelength, interdigital dielectrometry of insulating media in a transformer environment
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1987.
-
A Millimeter Wavelength Interferometric Study of Organic Molecules in Comet Hale -Bopp (C/1995 O1)
… the discovery of HCO + in comet Hale-Bopp. (2) Millimeter wavelength interferometric maps of comet spectral line emission have been made for the first time, proving the concept that comets can be successfully observed with the BIMA Array. (3) A new technique, the ""difference map"", has been …
-
Laboratory Measurements of the Millimeter Wavelength Opacity of Phosphine (PH3) and Ammonia (NH3) Under Simulated Conditions for the Cassini-Saturn Encounter
… gases and various cloud layers influence the millimeter wave spectra of the outer planets; however phosphine and ammonia are the main microwave absorbers at Saturn at pressures less than two bars. Understanding the pressure induced absorption of both constituents at observational frequencies …
-
Design and Implementation of an Ultrabroadband Millimeter-Wavelength Vector Sliding Correlator Channel Sounder and In-Building Multipath Measurements at 2.5 & 60 GHz
… they must operate at very high microwave and millimeter-wave frequencies, where large segments of spectrum are readily obtained. Unfortunately, little is known about the propagation characteristics at these frequencies and bandwidths. As a consequence, there has been a significant demand for …
-
Orion B--Anatomy of a Star-Forming Region
… continuum and H$\sb2$ emission line at a wavelength of 2 $\mu$m, and in several millimeter-wavelength molecular transitions (of HCO$\sp+$, SO, H$\sp $CN, and HC$\sp $N) with the Hat Creek Array.
-
Radio-polarimetric observations of gravitational lenses
… of fringe-fitting estimators as needed in millimeter-wavelength VLBI.
-
Multiwavelength Study of Photodissociation Regions and a Near -Infrared Imager
… of photodissociation regions (PDRs) in the millimeter, far-infrared, and near-infrared wavelength regimes are interpreted in the context of PDR theory. Three modifications to the standard Tielens & Hollenbach PDR model are considered. The first modification adds nitrogen chemistry to the TH …
-
Power Transmission Loss Due to Periodic Loading In Multi-Gigabit Data Signaling Interconnects
… pushing the interconnect bandwidth demand to the millimeter wave regime. As the Frequency content of the signals increase, micro scale structures of an interconnect medium, such as the woven glass fabric reinforcements of PCB's, can negatively influence the performance of PCB signal transmission. …
-
Self-consistent dynamical and radiative models of low-luminosity active galactic nuclei
… Sgr A* has been the target of extensive multiwavelength observing campaigns for decades, providing a wealth of information on its mean and fluctuating broadband spectrum. In the last few years, millimeter wavelength very long baseline interferometry has begun to resolve structure on the scale …