radiotracer studies of the fate and persistence of insecticides in seed, feed, oil and related products of groundnut. part of a coordinated programme on isotopic-tracer-aided studies of chemical residues in cotton seed, oil, feed and related products. fin

extensive usage of hexachlorocyclohexane (hch), 1-naphthyl-n-methyl-carbamate (carbaryl) and 2,2-bis-(p-chlorophenyl) -1,1,1-trichloro-ethane (p,p-ddt) in india for control of groundnut pests prompted the research team to investigate possible appearance of chemical residues in seed, oil and cake and to determine the effects of commercial ..

kynol/nomex fabrics for fire retardant shipboard utility uniforms final rept. jan 84-jan 85

at the request of the naval sea systems command, the navy clothing && textile research facility (nctrf) conducted a seven-phase investigation of kynol/nomex fabrics for possible use in fire-retardent (fr) shipboard utility uniforms in place of fire-retardent-treated (frt) cotton. nctrf first surveyed the u.s protective clothing market and..

cellulose iii cotton fiber resists abrasive wear. ntis tech note

this citation summarizes a one-page announcement of technology available for utilization. the quest to improve on nature has led scientists to such well-known innovations as durable-press, fire-resistant, and stain-release finishes for cotton textiles. one of the latest fibers developed in the laboratory is a rare crystalline form of cell..

nanosecond laser photolysis of opaque heterogeneous photosensitizers. final rept. 1 may 85-30 apr 88

the new technique of diffuse reflectance laser flash photolysis has been used to study the photochemistry of molecules, such as acridine and diphenylpolyenes adsorbed on metal oxide surfaces and electronic energy transfer between benzophenone and methylnaphtalene at interfaces. triplet-triplet absorption spectra and decay kinetics have be..

can crops tolerate acid rain. ntis tech note

this citation summarizes a one-page announcement of technology available for utilization. many farm crops, from lettuce to winter wheat, do not appear to suffer under acid rain, according to research at the ars air quality-plant growth and development laboratory in raleigh, north carolina. botanist denis t. dubay, plant pathologist allen ..

world tobacco situation, december 1989. foreign agriculture circular

in world developments, the australian federal cabinet has endorsed a national ban on tobacco advertising in printed media. in canada 21, 619 metric tons of flue-cured tobacco have been sold through the first 35 days of the 1989-90 auction season

feasibility of inspection of fungicidal finishes on textiles by x-ray, infrared and ultrasonic methods. final rept. jun 87-mar 88

a series of methods for determining the amount of copper-8-quinolinolate on a cellulose textile have been investigated several methods were selected for detailed calculations and experimental confirmation. these included x-ray fluorescence, dual energy x-ray transmission, fourier transform infrared (ftir) spectroscopy, and ultrasonic puls..

effects of in-stream mining on channel stability. volume 3 appendices. rept. for aug 86-jun 89

the report contains the appendices to volume ii, final report, addressing the impacts of in-stream sand and gravel mining on channel stability in arizona. the information contained in the appendices provides further documentation in support of the major chapters of the final report. topics addressed in the appendices include: summary of r..

sizing riprap for the protection of approach embankments and spur dikes and limiting the depth of scour at bridge piers and abutments volume 2. design procedure. final rept. feb 87-jun 89

the report presents methodologies currently available for sizing riprap protection measures. the five riprap performance areas identified in the report are: riprap quality, riprap-layer characteristics, hydraulic requirements, site conditions, and river conditions. localized design considerations include: the protection of approach embank..

effects of in-stream mining on channel stability. volume 2. final rept. aug 86-jun 89

the report consists of the executive summary of volume ii, final report addressing the impacts of in-stream sand and gravel mining upon the stability of river systems in arizona. the executive summary is a condensed version of the final report and includes discussion relative to all major categories such as: regulatory practices, structur..