Feasibility of surveying pesticide coverage with airborne fluorometer

Response of a Fraunhofer line discriminator (FLD) to varying distributions of granulated corncobs stained with varying concentrations of Rhodamine WT dye was tested on the ground and from an H-19 helicopter. The granules are used as a vehicle for airborne emplacement of poison to control fire ants in the eastern and southeastern United States. Test results showed that the granules are detectable by FLD but that the concentration must be too great to be practical with the present apparatus. Possible methods for enhancement of response may include: (1) increasing dye concentration; (2) incorporating with the poisoned granules a second material to carry the dye alone; (3) use of a more strongly fluorescent substance (at 5890 A); (4) modifying the time interval after dyeing, or modifying the method of dyeing; (5) modifying the FLD for greater efficiency, increased field of view or larger optics; or (6) experimenting with laser-stimulated fluorescence

Test of airborne fluorometer over land surfaces and geologic materials

Response of an experimental Fraunhofer line discriminator to a wide range of surficial deposits common in deserts and semideserts was tested in the laboratory and from an H-19 helicopter. No signals attributable to fluorescence were recorded during 540 miles of aerial traverses over southeastern California and west-central Arizona. It was concluded that exposed surfaces of target materials throughout the traverses were either nonluminescent at 5890 A or not sufficiently so to be detectable. It cannot be ruled out that the lack of fluorescence is partly attributable to surficial coatings of nonluminescent weathered material. The principal route surveyed from the air was from Needles, California to Furnace Creek Ranch, Death Valley and return, via the Amargosa River valley, Silurian Lake (dry), Silver Lake (dry), and Soda Lake (dry). Principal targets traversed were unconsolidated clastic sediments ranging from silty clay to cobbles, and a wide range of evaporite deposits

Geologic interpretation of the Gemini 5 photograph of the Salt Range-Potwar Plateau region, West Pakistan

Geologic interpretation of Gemini 5 photograph of Salt Range-Potwar Plateau region, West Pakista

Ultraviolet Absorption and Luminescence Investigations

Ultraviolet photographic system for remote detection of luminescent minerals and rocks and discriminating among nonluminescent materials on basis of ultraviolet absorptio

Protection of Privacy of Computerized Records in the National Crime Information Center

The purpose of this article is to describe the social benefits and costs of the NCIC and to indicate the need for a program of operational controls to temper the system\u27s impact on the balance between individual privacy and law enforcement needs. Various approaches which could be incorporated into a program of safeguards are introduced and briefly analyzed. Finally, the article discusses several overall design issues which should be considered in the construction of an adequate program of safeguards. Particular emphasis is placed on the NCCH file since it is the major source of the tensions underlying the issues addressed

Spin-lattice Interaction in Ruby Measured by ESR in Uniaxially Stressed Crystals

Spin-lattice Hamiltonian determined for chromium ions in ruby single crystal

Application of ultraviolet reflectance and stimulated luminescence to the remote detection of natural materials

Ultraviolet reflectance and stimulated luminescence for remote detection of naturally occurring rocks and mineral

Remote detection of solar stimulated luminescence

Development and tests of Fraunhofer line discriminator for detection of luminescence of selected earth materials from low flying aircraf

Strawberry varieties for Missouri

Cover title.Includes bibliographical references

Performance of strawberry varieties in Missouri

Cover title