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Preserve the Harvest: Canning Goat Meat at Home
No full textDue to its lean composition and nutritional profile similar to those of other tested meats, goat is well-suited for pressure canning. Follow USDA and Utah State University (USU) Extension altitude guidelines. This fact sheet provides guidelines for selecting high-quality meat, using proper equipment, and adhering to tested methods. Home canners can safely preserve goat meat and enjoy its benefits year-round
Effect of Driftwood on the Hydraulic Performance of A-Type Piano Key Weirs Situated In-Stream or at Reservoirs
No full textDriftwood is a natural part of most river ecosystems. The knowledge of its interaction with hydraulic structures, such as PKWs, is essential for two reasons: To (1) avoid uncontrolled inundations because of the level rise initiated by trapped driftwood (reducing the weir discharge coefficient), and (2) initiate the passage of the wood over the PKW, so that it remains in the river to further fulfill its environmental services. Knowledge of the conditions motivating driftwood to block at a PKW is essential. The present study accordingly focuses on the blocking probability of driftwood at PKWs and the resulting head increase – providing a basis to limit both. Extensive physical model tests were conducted with broad boundary conditions to achieve a certain significance of results. This is a challenging goal, since driftwood-related phenomena are known to show a partially random behavior. The observations suggest that driftwood typically blocks up to “mid-level” heads, and that a jam is likely removed during floods (large heads). An acceleration of the flow upstream of the PKWs and wide inlet keys showed less blockage and a reduced level increase. These findings are partially in conflict with the maximum hydraulic PKW efficiency: The reduction of the flow head to an absolute minimum by optimizing the PKW geometry might support blockage of driftwood
Research and Application of Piano Key Weirs in Vietnam (2025)
No full textSince the Piano Key Weirs (PKW) were introduced by F. Lempérière and A. Ouamane (2003) many such structures have been built for irrigation, hydroelectricity and water regulation due to their outstanding efficiency. In Vietnam, PKWs have also attracted significant attention. There have been several laboratory hydraulic model studies to test the discharge capacity, flow characteristics, and energy dissipation downstream the spillway. Vietnam had also issued PKW design standard for easy of application in 2018. This paper describes shortly 18 Piano Key Weirs in operation in Vietnam (among other existing PKWs) : Dak Mi 4B, Dak Mi 3, Dak Rong 3, Da Dang 3, Van Phong, Xuan Minh, Dak Trua 1, Dak Trua 2, Dak Nghe, Dak Sor 2, Buon Triet, Dong Do, Dam Ha Dong, Dong Nai 1 and Canh Tang reservoir, Thuong Song Ong Dak Rong 4 and My Son
Honey, I Shrunk the PK Weir: A Case Study of Burton Pond Dam
No full textBetween a low-head tidal environment, razor-thin hydraulic margins, and a long list of site restrictions, the Burton Pond Dam Rehabilitation project offered the chance to pursue a one-of-a-kind solution: a miniature stainless steel piano key weir as part of a new mixed active-passive spillway. This case study will explore how established hydraulic designs were modified specifically for the site and verified with computational flow dynamics; how the innovative cantilevered geometry was analyzed structurally with finite element modeling; and how detailing, fabrication and constructability were considered throughout the design process. From conceptual-level design submissions to the final construction walkthrough, the whole project was made possible and successful by embracing Building Information Modeling software
Value Added 3D Modeling – Lower Crow Dam Spillway Modification and Rehabilitation Project
No full textThe Confederated Salish and Kootenai Tribes (CSKT) have been operating Lower Crow Dam under restricted reservoir levels since 2008 due to significant structural and spillway capacity deficiencies that have increased risk to dam safety. Stantec was contracted by the CSKT to evaluate rehabilitation options and provide final design for the new spillway. The focus of this paper is to describe the design methodology and spillway selection process with an emphasis on the hydraulic modeling completed to support the final spillway arrangement. The design approach included the evaluation of various spillway types including gated, Obermeyer, fuse gate, ogee, labyrinth, and piano key weirs. Multiple models were developed through the project including one-dimensional computer models for preliminary design purposes and three-dimensional Computational Fluid Dynamics models for alternative evaluation and to confirm the final hydraulic performance of the spillway structure, inlet channel and chute
World Register of Piano Key Weirs
No full textPiano Key Weirs have been proposed in 2003. Since then, more than 40 projects have been commissioned over the world. This presentation details a world register of piano key weir prototypes, freely available online. It also analyses the main characteristics of these structures in operation to highlight trends in design
Healthy Living as a Critical Part of Emergency Preparedness
No full textThis resource presents practical, health-focused actions that individuals and caregivers can take to strengthen resilience before, during, and after emergencies. By integrating long-term wellness habits and short-term readiness strategies, it supports a more comprehensive and inclusive approach to disaster preparedness, enhancing not only personal outcomes but also community-wide response capacity
Assessing the efficacies of passive versus active restoration on heavily disturbed cattle-grazing sites in the Mojave National Preserve
No full textRadiation Hardness Drivers for Mission Success – What We Have Learned
No full textRHA consists of all activities undertaken to ensure that the electronics and materials of a space system perform to their design specifications throughout exposure to the mission space environmen
Atmospheric Waves Experiment (AWE) Mission Overview
No full textThe AWE instrument images atmospheric gravity waves from the ISS, quantifying energy and momentum fluxes into the ionosphere-thermosphere system to better understand how tropospheric weather influences space weathe