30 research outputs found
Tampa Bay Mass Transit: Planning for Tomorrow
Tampa Bay Region, Florida
Tampa Bay mass transit: planning for tomorrow. Summary report. Prepared for the Tampa Bay Regional Planning Council. Washington, D.C. : TRW Systems Group, 1970
Mission science requirements AS-511 /CSM-112/ LM-10 Apollo Mission J-1 (Apollo 16)
This document contains the science requirements for the Apollo J-1 Mission. It is intended for use by the Manned Spacecraft Center (MSC) and offsite personnel in program and mission planning and in the integration and implementation of mission science requirements.Contract NAS 9-8166prepared by TRW Systems for Lunar Missions Office Science and Applications Directorate Manned Spacecraft Center ; [submitted by Richard R. Baldwin].General science requirements -- Experiments requirementsReview draf
AS-512/CSM-114/ LM-12 Apollo Mission J-3 (Apollo 17) mission science planning document
The Mission Science Planning Document (MSPD) is intended primarily as a science overview for use by experiment Principal Investigators, members of the scientific community, and personnel involved in planning science activities for the Apollo Mission J-3. It is also intended to provide detailed interim data for use in implementing the science requirements presented in the MSC-controlled J-3 Mission Requirements Document (MRD) until such data are published in other MSC-controlled documents.Contract NAS 9-12330prepared by TRW Systems for Science Missions Support Division, Science and Applications Directorate, Manned Spacecraft Center ; submitted by Richard R. Baldwin.General mission science planning -- Experiment descriptions -- Photographic plan -- Lunar surface science plan -- Science recovery plan -- Lunar receiving laboratory planPreliminar
Tampa Bay Region Mass Transportation: Phase II Appendixes
Tampa Bay Region, Florida
Tampa Bay region mass transportation: Phase II. Prepared for the Tampa Bay Regional Planning Council, by Harvey N. Kreisberg. McLean, Va : TRW Systems Group, 1971. With appendixes document
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Meteorological Monitoring Program, Particulate Matter Ambient Air Quality Monitoring Report, January Through December 1996
Statistical characterisation of bio-aerosol background in an urban environment
In this paper we statistically characterise the bio-aerosol background in an
urban environment. To do this we measure concentration levels of naturally
occurring microbiological material in the atmosphere over a two month period.
Naturally occurring bioaerosols can be considered as noise, as they mask the
presence of signals coming from biological material of interest (such as an
intentionally released biological agent). Analysis of this 'biobackground' was
undertaken in the 1-10 um size range and a 3-9% contribution was found to be
biological in origin - values which are in good agreement with other studies
reported in the literature. A model based on the physics of turbulent mixing
and dispersion was developed and validated against this analysis. The Gamma
distribution (the basis of our model) is shown to comply with the scaling laws
of the concentration moments of our data, which enables us to universally
characterise both biological and non-biological material in the atmosphere. An
application of this model is proposed to build a framework for the development
of novel algorithms for bio-aerosol detection and rapid characterisation.Comment: 14 Pages, 8 Figure
The Pioneer Anomaly
Radio-metric Doppler tracking data received from the Pioneer 10 and 11
spacecraft from heliocentric distances of 20-70 AU has consistently indicated
the presence of a small, anomalous, blue-shifted frequency drift uniformly
changing with a rate of ~6 x 10^{-9} Hz/s. Ultimately, the drift was
interpreted as a constant sunward deceleration of each particular spacecraft at
the level of a_P = (8.74 +/- 1.33) x 10^{-10} m/s^2. This apparent violation of
the Newton's gravitational inverse-square law has become known as the Pioneer
anomaly; the nature of this anomaly remains unexplained. In this review, we
summarize the current knowledge of the physical properties of the anomaly and
the conditions that led to its detection and characterization. We review
various mechanisms proposed to explain the anomaly and discuss the current
state of efforts to determine its nature. A comprehensive new investigation of
the anomalous behavior of the two Pioneers has begun recently. The new efforts
rely on the much-extended set of radio-metric Doppler data for both spacecraft
in conjunction with the newly available complete record of their telemetry
files and a large archive of original project documentation. As the new study
is yet to report its findings, this review provides the necessary background
for the new results to appear in the near future. In particular, we provide a
significant amount of information on the design, operations and behavior of the
two Pioneers during their entire missions, including descriptions of various
data formats and techniques used for their navigation and radio-science data
analysis. As most of this information was recovered relatively recently, it was
not used in the previous studies of the Pioneer anomaly, but it is critical for
the new investigation.Comment: 165 pages, 40 figures, 16 tables; accepted for publication in Living
Reviews in Relativit
Development of a polymeric cementing and encapsulating process for managing hazardous wastes /
Mode of access: Internet
Gaining Confidence in Using Return on Investment and Earned Value
The terms “earned value ” and “return on investment ” (ROI) are frequently heard in the world of project management; however, they are often used incorrectly or inconsistently. This article summarizes the major principles and purposes of these management tools with the intent on moving them into the mainstream of proper use. Throughout the Department of Defense (DoD) and private industry, the terms “return on investment ” and “earned value ” are becoming more commonplace. Their use also is becoming more appropriate, visibly demonstrated, and validated. These terms tend to frustrate some program managers and corporate executives, while other organizations revel in their daily application. It is interestin