Sensing a better technique was needed, FDNY officials met with a few technology companies to come up with a more accurate solution, which turned out to be handheld GPS units that automatically recorded the location of recovered items with an accuracy within 3 to 9 feet. The data then was transferred to nearby laptops connected to a database.Ironically, GPS, which relies on satellite line-of-sight to pinpoint a location, generally does not work well in Manhattan because of the canyon effect created by the city''s skyscrapers. However, the metalworkinglathedrillpressmini large metalworkinglathedrillpressmini space left by the collapse of the twin World Trade towers opened the skyline so the devices could connect to the satellites.

Nagel''s wife, Cindy, and her sister-in-law, Angela Nagel (both pictured on page 34), are trained technicians who go on the road with the equipment, scanning more than 15,000 cattle a year for metalworkinglathedrillpressmini producers across the Midwest and West. Their business, Midwest Sonatech, Inc. (605/369-2628) works with Iowa State University (ISU) to analyze the data. Business is booming."Ultrasound body composition data is the greatest tool a seedstock producers can use to make genetic improvement," says Cindy. "Customers are now demanding the data. Ultrasound results can make or break a bull."The Nagels use two Aloka 500V machines to collect measurements on fat thickness, ribeye area and marbling, and rump fat. The stored images are analyzed by ISU metalworkinglathedrillpressmini with computer software. The Nagels can scan 20 metalworkinglathedrillpressmini cattle an hour. They charge $14 a head, which includes $4 for image analysis.

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