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  • ERDC’s Centrifuge Research Complex undergoes innovative upgrades

    Upgrades were recently completed to one of the world’s most powerful beam centrifuges, giving modernized functionality to one of the most innovative pieces of technology at the U.S. Army Engineer Research and Development Center (ERDC).
  • Soo Locks upgrading park’s lock model displays

    DETROIT- Soo Locks visitors will see more than $100,000 in improved lock model displays in the coming years thanks to local partner support and the U.S. Army Corps of Engineers’ Handshake Partnership Program. Currently, the park features two original 3-D models dating back to 1893 and 1912, showing locks built on the facility over 100 years ago. The models sit in concrete and glass cases with cracked panes and openings in the bases allowing air, moisture and insects to get inside. The oldest model was built to test the original Poe Lock plans in 1893 as evidenced by a photo discovered by Chief Park Ranger Michelle Briggs while working with historic photos. “I was doing some research when I found a photo dated March 1893 of the workmen posed with the model of the original Poe Lock, which I recognized from the park,” Briggs said. “I am sure this model was finished shortly after the picture was taken since one of the workmen is still holding a paint brush.”
  • Corps partners with Flood Control District 10 to create predictive model to manage the Boise River

    The Corps is using the latest technology to develop tools that communities in Idaho can use to predict flooding. The technology: Two-dimensional modelling.
  • PUBLICATION NOTICE: The Urban Ground-to-Ground Radio-Frequency Channel: Measurement and Modeling in the Ultrahigh Frequency Band

    ABSTRACT:  Ground-to-ground radio communication and sensing within the urban environment is challenging because line of sight between transmitter and receiver is rarely available. Therefore, radio links are often critically reliant on reflection and scattering from built structures. Little is known about the scattering strength of different buildings or whether such differences are important to the urban ground-to-ground channel. We tested the hypotheses that (1) diffuse scattering from built structures significantly impacts the urban channel and (2) scattering strength of urban structures varies with surface roughness and materials.  We tested these hypotheses by measuring urban channels in Concord, New Hampshire, and Boston, Massachusetts, and via channel-modeling efforts with three-dimensional representations of the urban environment. Direct comparison between measured and modeled channels suggest that both of these hypotheses are true. Further, it appears that ray-tracing approaches underestimate the complexity of urban channels because these approaches lack the physical processes to correctly assess the power incident on and scattered from built structures. We developed a radio-geospatial model that better accounts for incident power on both directly visible and occluded buildings and show that our model predictions com-pare more favorably with measured channels than those channels predicted via typical ray-tracing approaches.
  • Corps of Engineers Regional Economic System (RECONS) Version 2.0 Receives Model Certification

    The Corps' Regional Economic System (RECONS) 2.0 model is a nationally-certified model designed for
  • First-of-its-kind workshop focuses on storm surge, coastal flood risk in Maryland

    Storms are becoming stronger and more prevalent, and they are wiping out entire coastal communities - and not just along the Gulf Coast. First-of-its-kind workshop focuses on storm surge, coastal flood risk in Maryland - funded by the Maryland Silver Jackets
  • Hydropower model tests generate positive results for Center Hill rehab project

    YORK, Pa. (Oct. 10, 2014) – Corps experts witnessed a series of tests this week on a “small-scale” turbine model in a laboratory at Voith Hydro Inc. The tests were completely successful and the positive results will keep the Center Hill Hydropower Rehabilitation Project schedule on track.
  • Honey, I Shrunk the Dam!

    Thanks to 3-D printing technology, Sacramento District projects are being shrunk into handheld models in a matter of hours to help team members visualize and explain their work like never before.
  • District, UNM Use Physical Modeling to Improve Jemez Weir

    The U.S. Army Corps of Engineers uses models to reduce uncertainty and to help ensure a structure’s performance will be up to par.