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Your search keyword '"Geiger, David"' showing total 18 results
Start Over Author "Geiger, David" Publication Type Conference Materials
18 results on '"Geiger, David"'

11. Drop test reliability of lead-free chip scale packages

Author

Farris, Andrew, primary, Pan, Jianbiao, additional, Liddicoat, Albert, additional, Toleno, Brian J., additional, Maslyk, Dan, additional, Shangguan, Dongkai, additional, Bath, Jasbir, additional, Willie, Dennis, additional, and Geiger, David A., additional

Published
2008
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16. PRECISION AGRICULTURE: A TOOL FOR COTMAN.

Author

Geiger, David W., Searcy, Stephen W., and Fromme, Dan. D.

Abstract

The determination of field sampling locations for COTMAN software is a highly subjective process. COTMAN provides guidelines for sampling with respect to practices and numbers. Many producers do not adhere to the guidelines because of the associated time and logistical requirements. In fields with significant developmental variability, sampling locations that merely represent an average condition of the field fail to address the specific management needs of different regions of the field. In fields with little variability, the general condition of the field can be assessed by a small number of well selected sampling locations. Research was conducted at Texas A&M University (TAMU) in 2003 to explore the utility of using precision farming technologies to assess variability, select sampling locations and monitor plant development throughout the growing season. Test sites which consisted of production irrigated and dryland fields in south and south-central Texas were monitored throughout the growing season by COTMAN and a TAMU developed plant height mapping system called HMAP. Two sampling locations selected from consistently average height regions within a field were able to generate equivalent COTMAN outputs to those generated with three times as many sampling locations from the same field for all sites considered in this study, irrespective of field size. [ABSTRACT FROM AUTHOR]

Published
2004

18. COTMAN AS A SITE-SPECIFIC MANAGEMENT TOOL.

Author

Searcy, Steve, Geiger, David, and Fromme, Dand.

Abstract

COTMAN™ was developed to assist in management decision for average field conditions. In this study, COTMAN data collected from individual sampling locations within a field were compared to average field conditions in two distinct Texas growing regions. Both imagery and spatially dense maps of plant height were used to characterize the variability present in the field. It was found that different management recommendations could result within a particular field when regions of significant variability are considered separately. The results of this study suggest that COTMAN could be a useful tool in making site-specific management decisions, and that spatial data could in turn improve selection of COTMAN sample sites. [ABSTRACT FROM AUTHOR]

Published
2004

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