Search Results - "Keefe, Robert F."

Development and validation of smartwatch-based activity recognition models for rigging crew workers on cable logging operations by Zimbelman, Eloise G, Keefe, Robert F

“…Analysis of high-resolution inertial sensor and global navigation satellite system (GNSS) data collected by mobile and wearable devices is a relatively new…”
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Real-time positioning in logging: Effects of forest stand characteristics, topography, and line-of-sight obstructions on GNSS-RF transponder accuracy and radio signal propagation by Zimbelman, Eloise G, Keefe, Robert F

“…Real-time positioning on mobile devices using global navigation satellite system (GNSS) technology paired with radio frequency (RF) transmission (GNSS-RF) may…”
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A novel smartphone-based activity recognition modeling method for tracked equipment in forest operations by Becker, Ryer M, Keefe, Robert F

“…Activity recognition modelling using smartphone Inertial Measurement Units (IMUs) is an underutilized resource defining and assessing work efficiency for a…”
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Lost in the woods: Forest vegetation, and not topography, most affects the connectivity of mesh radio networks for public safety by Zimbelman, Eloise G, Keefe, Robert F

“…Real-time data- and location-sharing using mesh networking radios paired with smartphones may improve situational awareness and safety in remote environments…”
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Design and evaluation of an inexpensive radiation shield for monitoring surface air temperatures by Holden, Zachary A., Klene, Anna E., F. Keefe, Robert, G. Moisen, Gretchen

“…•We design a low-cost solar radiation shield for measuring surface air temperature.•The shield performs as well as a commercial passive shield.•Our design…”
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Positioning Methods and the Use of Location and Activity Data in Forests by Robert F. Keefe, Ann M. Wempe, Ryer M. Becker, Eloise G. Zimbelman, Emily S. Nagler, Sophie L. Gilbert, Christopher C. Caudill

“…In this paper, we provide an overview of positioning systems for moving resources in forest and fire management and review the related literature. Emphasis is…”
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Characterizing Rigging Crew Proximity to Hazards on Cable Logging Operations Using GNSS-RF: Effect of GNSS Positioning Error on Worker Safety Status by Ann M. Wempe, Robert F. Keefe

“…Logging continues to rank among the most lethal occupations in the United States. Though the hazards associated with fatalities are well-documented and safe…”
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Small Landowner Production of Pellets from Green, Beetle-Killed, and Burned Lodgepole Pine by Qin, Xuexian, Keefe, Robert, Daugaard, Daren

“…To meet the growing need for raw materials to produce pellets and wood-based biofuels, trees killed by natural disturbances have increasingly been considered…”
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Use of Real‐Time GNSS‐RF Data to Characterize the Swing Movements of Forestry Equipment by Ryer M. Becker, Robert F. Keefe, Nathaniel M. Anderson

“…The western United States faces significant forest management challenges after severe bark beetle infestations have led to substantial mortality. Minimizing…”
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Human Factors Affecting Logging Injury Incidents in Idaho and the Potential for Real-Time Location-Sharing Technology to Improve Safety by Newman, Soren M, Keefe, Robert F, Brooks, Randall H, Ahonen, Emily Q, Wempe, Ann M

“…Human factors, including inadequate situational awareness, can contribute to fatal and near-fatal traumatic injuries in logging, which is among the most…”
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Accuracy of WAAS-Enabled GPS-RF Warning Signals When Crossing a Terrestrial Geofence by Grayson, Lindsay M, Keefe, Robert F, Tinkham, Wade T, Eitel, Jan U H, Saralecos, Jarred D, Smith, Alistair M S, Zimbelman, Eloise G

“…Geofences are virtual boundaries based on geographic coordinates. When combined with global position system (GPS), or more generally global navigation…”
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Active ground optical remote sensing for improved monitoring of seedling stress in nurseries by Eitel, Jan U H, Keefe, Robert F, Long, Dan S, Davis, Anthony S, Vierling, Lee A

“…Active ground optical remote sensing (AGORS) devices mounted on overhead irrigation booms could help to improve seedling quality by autonomously monitoring…”
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Intent to Adopt Location Sharing for Logging Safety Applications by Wempe, Ann, Keefe, Robert, Newman, Soren, Paveglio, Travis

“…Logging entails work in remote areas with multiple hazards and consistently ranks among the most fatal occupations in the United States. Location-sharing (LS)…”
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Lost in the woods: Forest vegetation, and not topography, most affects the connectivity of mesh radio networks for public safety by Eloise G. Zimbelman, Robert F. Keefe

“…Real-time data- and location-sharing using mesh networking radios paired with smartphones may improve situational awareness and safety in remote environments…”
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Use of Individual Tree and Product Level Data to Improve Operational Forestry by Keefe, Robert F., Zimbelman, Eloise G., Picchi, Gianni

“…Purpose of Review Individual tree detection (ITD) methods and technologies for tracking individual forest products through a smart operational supply chain…”
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Development of activity recognition models for mechanical fuel treatments using consumer-grade GNSS-RF devices and lidar by Becker, Ryer M, Keefe, Robert F

“…Mobile technologies are rapidly advancing the field of forest operations and providing opportunities to quantify management tasks in new ways through increased…”
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An Accuracy Assessment of Field and Airborne Laser Scanning–Derived Individual Tree Inventories using Felled Tree Measurements and Log Scaling Data in a Mixed Conifer Forest by Sparks, Aaron M, Corrao, Mark V, Keefe, Robert F, Armstrong, Ryan, Smith, Alistair M S

“…On-the-ground sample-based forest inventory methods have been the standard practice for more than a century, however, remote sensing technologies such as…”
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Effects of Harvesting Systems and Bole Moisture Loss on Weight Scaling of Douglas-Fir Sawlogs (Pseudotsuga Menziesii var. glauca Franco) by Jarred D. Saralecos, Robert F. Keefe, Wade T. Tinkham, Randall H. Brooks, Alistair M. S. Smith, Leonard R. Johnson

“…Characterizing the moisture loss from felled trees is essential for determining weight-to-volume (W-V) relationships in softwood sawlogs. Several factors…”
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Remote sensing the vulnerability of vegetation in natural terrestrial ecosystems by Smith, Alistair M.S., Kolden, Crystal A., Tinkham, Wade T., Talhelm, Alan F., Marshall, John D., Hudak, Andrew T., Boschetti, Luigi, Falkowski, Michael J., Greenberg, Jonathan A., Anderson, John W., Kliskey, Andrew, Alessa, Lilian, Keefe, Robert F., Gosz, James R.

“…Climate change is altering the species composition, structure, and function of vegetation in natural terrestrial ecosystems. These changes can also impact the…”
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Hazards in Motion: Development of Mobile Geofences for Use in Logging Safety by Zimbelman, Eloise G, Keefe, Robert F, Strand, Eva K, Kolden, Crystal A, Wempe, Ann M

“…Logging is one of the most hazardous occupations in the United States. Real-time positioning that uses global navigation satellite system (GNSS) technology…”
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