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Now showing items 541-550 of 608
An integrated farm machinery selection and management system for personal computers
(1991)
An integrated expert system for farm machinery management, titled Farm-machinery Analysis, Research and Management (FARM), was developed at the Agricultural Engineering Department of Texas A&M University for use on personal ...
Mechanisms of action of the synthetic hypertrehalosemic hormone in the fat body of the cockroach, Blaberus discoidalis
(1991)
The hypertrehalosemic hormone (HTH) is a decapeptide that is stored and released from corpora cardiaca (CC) of the cockroach, Blaberus discoidalis. HTH has at least three distinct physiological actions on the fat body. One ...
Autonomous star sensing and pattern recognition for spacecraft attitude determination
(1991)
Autonomous star sensing and pattern recognition for attitude determination provides many technological challenges to modern spacecraft optical sensor design. This is mostly due to the relatively high accuracy requirements ...
The role of the substrate in ion formation produced by fast heavy ion induced desorption
(1991)
The desorption-ionization of organic and inorganic ions ejected from polymer and metal-coated polymer surfaces with salt overlayers was studied using [252]Cf plasma desorption mass spectrometry. The matrix, when bombarded ...
Machine vision inspection of fresh market carrots
(1991)
A machine vision system was developed to inspect fresh-market carrots. Software and hardware components were designed and developed into a working inspection system, INSPECT. The main objectives of this study were to ...
Radiocarbon dating of prehistoric rock paintings
(1991)
Prehistoric rock paintings occur worldwide, but until recently, they could not be dated directly. We have developed a new method utilizing a low-pressure, low-temperature oxygen plasma, that allows direct [^14]C dates to ...
A geostatistical assessment of infiltration for furrow irrigation management
(1991)
Infiltration in irrigated furrows is a complex hydraulic phenomenon that varies in both space and time. The effects of spatially variable infiltration on advance and infiltration of water along a furrow must be well ...
Localization of samarium-153 EDTMP in normal bone
(1991)
The objective of this study was to determine the area and method of localization of samarium-153-ethylenediaminetetramethylene phosphonic acid (153Sm-EDTMP) in normal bone so that this information might.be used to refine ...
Leaf dynamics, stemflow and throughfall water and nutrient inputs in a subtropical savanna parkland, Texas
(Texas A&M University, 1991)
Not available
Supplying nitrogen, phosphorus, and potassium to plants through dissolution and ion exchange using a zeolite-based substrate
(1991)
The National Aeronautics and Space Administration is developing a Controlled Ecological Life Support System (CELSS) for use at a lunar outpost or Mars colony. Plants are an important component of a CELSS because they will ...