A study of the introduction of ions into the region of strong fields within a quadrupole mass spectrometer Quarterly progress report, 17 May - 17 Aug. 1966

Introduction of ions into region of strong fields within quadrupole mass filte

A Survey To Determine The Relationship Between The Elderly\u27S And The Family’S Perception Of Aging

The purpose of this study was to determine the relationship between the elderly*s and family\u27s perceptions of aging. The null hypothesis stated that when the elderly\u27s and family\u27s perceptions of aging were compared, as determined by scores on the Perceptions about Aging survey, there would be no significant difference at the .05 level. Data were collected from 60 subjects. Thirty were individuals age 65 and above, and 3 0 were non-elderly family members, one for each participant, who had had contact with the elderly subject at least once a week. All subjects were administered the Perceptions about Aging survey. The scores of the elderly and family member were then compared utilizing the t-test at the .05 level of significance. The results demonstrated a significant difference between the elderly\u27s and family\u27s perceptions of aging, Thus, the researcher rejected the null hypothesis

Field study of currents at Norfolk Naval Shipyard, Portsmouth, Virginia

As a component of an investigation into biofouling problems near the Norfolk Naval Shipyard, a field study of currents was conducted in the Southern Branch of the Elizabeth River in the vicinity of the shipyard\u27s aircraft carrier slips. The objective of this study was to determine the magnitude and direction of currents in an area encompassing the turning basin adjacent to the slips, and the transitional regions to the north and south where the river tapers from a width of approximately 600 m in the turning basin to its more typical width of 150 m. To the north, the transition is gradual; to the south it is abrupt

The formation of longitudinal fronts in a coastal plain estuary

Longitudinal estuarine fronts, aligned parallel to the axis of the estuary, are characteristic of the York River. Their time scale for genesis and decay is of the order of hours; they are usually located at the inner edge of the shoals or over the main channel. Field measurements have shown marked intratidal differences in density and current speeds across this estuary. These can be correlated with changes in depth and the strength of the advective processes. Differential advection between the channel and shoal regions, when acting upon a constant longitudinal density gradient, is shown to be of sufficient magnitude to generate strong lateral density gradients, and thus fronts, at particular times within the tidal cycle

Quadrupole mass spectrometer Final report

Quadrupole mass spectrometer operation in presence of high background pressure of hydroge