Apparatus for changing the orientation and velocity of a spinning body traversing a path Patent

Development of method and apparatus for spinning satellite about selected axis after reaching predetermined orientatio

Simulations of Evolving or Outbursting Molecular Protostellar Jets

The kinematic and radiative power of molecular jets is expected to change as a protostar undergoes permanent or episodal changes in the rate at which it accretes. We study here the consequences of evolving jet power on the spatial and velocity structure, as well as the fluxes, of molecular emission from the bipolar outflow. We consider a jet of rapidly increasing density and a jet in which the mass input is abruptly cut off. We perform three dimensional hydrodynamic simulations with atomic and molecular cooling and chemistry. In this work, highly collimated and sheared jets are assumed. We find that position-velocity diagrams, velocity-channel maps and the relative H$_2$ and CO fluxes are potentially the best indicators of the evolutionary stage. In particular, the velocity width of the CO lines may prove most reliable although the often-quoted mass-velocity power-law index is probably not. We demonstrate how the relative H$_2$ 1--0 S(1) and CO J=1--0 fluxes evolve and apply this to interpret the phase of several outflows.Comment: 13 pages, 15 figures, Accepted for publication in MNRA

Variations in atmospheric angular momentum

Twice-daily values of the atmosphere's angular momentum about the polar axis during the five years from 1976 through 1980 are presented in graphs and a table. The compilation is based on a global data set, incorporating 90 percent of the mass of the atmosphere. The relationship between changes in the angular momentum of the atmosphere and changes in the length of day is described, as are the main sources of error in the data. The variability in angular momentum is revealed in a preliminary fashion by means of a spectral decomposition. The data presented should stimulate comparisons with other measures of the length of day and so provide a basis for greater understanding of Earth-atmosphere interactions

Impact of satellite data on large-scale circulation statistics as determined from GLAS analyses during FGGE-SOP-1

A study using the analyses produced from the assimilation cycle of parallel model runs that both include and withhold satellite data was undertaken. The analyzed state of the atmosphere is performed using data from a certain test period during the first Special Observing Period (SOP) of the Global Weather Experiment (FGGE)

Variations in atmospheric angular momentum and the length of day

Six years of twice daily global analyses were used to create and study a lengthy time series of high temporal resolution angular momentum values. Changes in these atmospheric values were compared to independently determined charges in the rotation rate of the solid Earth. Finally, the atmospheric data was examined in more detail to determine the time and space scales on which variations in momentum occur within the atmosphere and which regions are contributing most to the changes found in the global integral. The data and techniques used to derive the time series of momentum values are described

New York - New Jersey job expansion to moderate in 2001

New York City will set the pace for job growth in the New York-New Jersey region in 2001, with employment advancing 1.9 percent over the year. For the region as a whole, the rate of job growth will drop to 1.5 percent, from 2.2 percent in 2000.Employment - New York (State) ; Employment - New Jersey ; Federal Reserve District, 2nd

The New York - New Jersey job recovery

Modest employment is expected to continue through 1997, with the New York City metropolitan area creating the bulk of new jobs.Federal Reserve District, 2nd ; Employment (Economic theory)

New York - New Jersey job expansion to continue in 2000

Employment growth in the New York-New Jersey region in 2000 is expected to reach 1.8 percent, or 290,000 new jobs--continuing a seven-year expansion trend. However, some moderation in the growth in the national economy over the second half of 2000 may slow the region's job growth and prevent it from matching last year's rate.Employment - New York (State) ; Employment - New Jersey ; Federal Reserve District, 2nd

1997 job outlook: the New York-New Jersey region

Major industrial and government restructurings have dominated employment reports in the New York-New Jersey region, leading to widespread pessimism about the region's job prospects. Nevertheless, for the past several years, the two states have managed to achieve modest job gains. In 1997, employment growth in New York and New Jersey will accelerate slightly as the pace of restructurings slows.Employment (Economic theory) ; New York (State) ; New Jersey ; Federal Reserve District, 2nd

New York-New Jersey region's job growth to continue in 1999, but risks have risen

Employment growth in the New York-New Jersey region in 1998 is likely to match the previous year's pace of 1.7 percent, or 200,000 new jobs. Growth will continue in 1999, but it will slow modestly, to about 1.2 percent, or 145,000 new jobs.Federal Reserve District, 2nd ; Employment - New York (State) ; Employment - New Jersey ; Economic conditions - United States