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Bear Facts Application Notes (1988-2000)

Bear Facts are published to provide useful insights into the operation and applications
for the DataBear™ Measurer and associated complete instruments.

All data are gathered and plotted at a sample rate of any number of seconds.
How they are used are shown in these two-page summaries of actual measurements
gathered around the world.

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Carbon Monoxide Data

< Motorcycle COp > police officer CO exposure
< EXPOLIS Study > CO Exposure in European cities
< A Field of CO > measuring the dispersion of CO in a large room
< Routine Air Quality > an inexpensive way to standardize data acquisition
< CO in Aircraft > measurements in a commercial aircraft cargo bay
< Big Apple Air > measurements in New York and Washington DC
< A Practical Guide to Measuring Air Exchanges > step-by-step procedures
< Cigars, Cigarettes - CO, Smoke > creating sources to observe air exchanges
< Ventilation Rates - From CO Measurements > the mathematical derivation
< Clean City Air > four weeks along a San Francisco street
< Some CO in Mexico > measurements in Mexico DF and Chiapas
< Automobiles Inside Garages > showing improvements over six years
< CO at 50 ppb > new high resolution capabilities with the Langan T15
< A Class Idea > using CO data gathered by students
< CO in Valencia > measurements along the Mediteranean Coast
< Big City Traffic > high-level CO measurements in Thailand and Mexico
< Overnight Exhaust > CO measurements during the transport of packages using overnight services
< CO in the Neighborhood > a week of CO measurements show commuter trends

Carbon Dioxide Data

< CO2 and CO too > indoor measurements with carbon dioxide AND carbon monoxide
< CO2 Results > initial CO2 measurements with a Langan DataBear™ Measurer

Relative Humidity - Temperature Data

< Measuring Water as a Gas > compares various methodologies for measuring humidity
< A Cessna to Alaska > a week of measurements from California to central Alaska
< XerIC Data > compares humidity measured by the established Xeritron and new MEMS sensor
< Summer Air Cargo > hot summer measurements in air cargo transport
< Prison Cells on Alcatraz Island > four years of measurements within the Cell Block
< Outside on Alcatraz Island > four years of measurements from the center of San Francisco Bay
< An Aircraft Cargo Bay > a week of measurements, with barometric pressure, show each flight
< Touring and Measuring > measurements, with barometric pressure, during a mountain auto tour
< At the Atlanta Olympics > measurements during the XX Olympiad
< Maya Masterpiece Monitoring > data showing inside and out at the Bonampak art rooms
< The Ups and Downs of Aircraft > wintry data showing each flight and the cargo environment
< An Exhibition of Dose > a year of exposure within a library setting
< Precious Cargo - People and Animals > long flights between California and Alaska
< Tracing Humidity > triple calibration procedures for Xeritron humidity sensors
< Exhibited Care > a comparison within a controlled environment, the adjacent room and outside
< Annual Alcatraz > an initial set of year-long outside measurements at Alcatraz
< Dry Storage - in the American Southwest > the environment in storerooms for historical data
< Measuring Ice > watching water freeze, then melt

Hardware, Software and Analysis Descriptions

< USB Connection > connecting a DataBear to new Macintoshes with no DIN connectors
< Measurer's Window > software for retrieving and reseting data
< Y2K Solution > software corrections that adapted to the new millenium
< Condensing Data > concentrating data in useful statistical ways
< An Over View > coordinating graphical views with calendar plots

< Langan Products, Inc. home page > Specifications are subject to change.

© 1997-99 Langan Products, Inc. DataBear, DataBear logo, Sense-Your-World!, IBearM, Measurer are trademarks of Langan Products, Inc.
Xeritron of Hygrometrix, Inc. CiTiceL of City Technology Ltd. Macintosh, MacOS of Apple Computer, Inc.

Last update 24 August 2000. (Page established in August 1997.)