Results 61 to 70 of about 2,467 (253)

Effect of Perforated Sills on Maximum Scour Depth Downstream From a Sluice Gate

The Open Civil Engineering Journal, 2023
Aims: Experiments were conducted to study the effect of using a perforated sill on maximum scour depth downstream from a sluice gate. Background: Previous studies have shown that screens may be utilized efficiently for ...
Elsayed M. Elshahat, Gamal M. AbdelAal, Samar Hassan, Eslam Eltohamy   +3 more
openaire   +1 more source

Design Procedures and Field Monitoring of Submerged Barbs for Streambank Protection: TR-534, June 2007 [PDF]

, 2007
The main objective of this study was to evaluate the hydraulic performance of riprap spurs and weirs in controlling bank erosion at the Southern part of the Raccoon River upstream U.S. Highway 169 Bridge utilizing the commercially available model FESWMS

core  

Ethnobotanical insights into the medicinal and food uses of Lamiaceae in the Mediterranean region: A systematic review and meta‐analysis

PLANTS, PEOPLE, PLANET, EarlyView.
For generations, Mediterranean communities have used Lamiaceae or Labiatae plants like rosemary, thyme or mint to care for their health and to enrich their food. By bringing together dispersed knowledge from across the Mediterranean region, our review revealed the continuing relevance of Lamiaceae while also compiling past uses that may hold future ...
Fuencisla Cáceres, Joan Vallès, Teresa Garnatje, Airy Gras   +3 more
wiley   +1 more source

Nutritional properties, traditional uses and potential new applications for the sotol plant (Asparagaceae, Convallarioideae): A review

PLANTS, PEOPLE, PLANET, EarlyView.
Sotol (Dasylirion spp.) is a resilient desert plant that sustains ecosystems, cultures and livelihoods in Chihuahua Desert. Our review highlights its nutritional properties, traditional uses and potential new applications in food, pharmaceuticals, renewable energy and water remediation. By synthesizing evidence across disciplines, we show how sotol can
Dámaris Leopoldina Ojeda Barrios, Antonio Martínez Ruiz, Marisela Calderón Jurado, Ramón Saúl Luján Aguirre, Juan Luis Jacobo Cuellar, Oscar Sariñana‐Aldaco, María Teresa Martínez Damián, Oscar Cruz Alvarez   +7 more
wiley   +1 more source

Estimation of maximum scour depth downstream of an apron under submerged wall jets [PDF]

Journal of Hydroinformatics, 2019
AbstractAn analysis of laboratory experimental data pertaining to local scour downstream of a rigid apron developed under wall jets is presented. The existing equations for the prediction of the maximum scour depth under wall jets are applied to the available data to evaluate their performance and bring forth their limitations. A comparison of measured
Zulfequar Ahmad, Mohammad Aamir
openaire   +1 more source

Numerical investigation of scour behavior around complex piers under flood conditions

Frontiers in Built Environment
IntroductionLocal scour at bridge piers is a primary cause resulting bridge failure, a risk that is significantly exacerbated under extreme hydrodynamic events such as floods.MethodsThis study presents a numerical investigation of the scour behavior ...
Qiang Qin, Liangliang Shi, Yufei Li, Yujie Li, Haozhou Qin, Gang Ren, Zhiying Yang   +6 more
doaj   +1 more source

Effects of Engineered Dam Releases on Benthic Assemblages During Drought and Comparison With Unregulated Reaches

River Research and Applications, EarlyView.
ABSTRACT River regulation following damming is often associated with deleterious downstream effects, in large part due to reduced total discharge and disruption of seasonal flooding. These effects would be expected to be exacerbated by drought, particularly extended drought.
Jeffrey G. Holmquist, Jutta Schmidt‐Gengenbach   +1 more
wiley   +1 more source

Prediction of Maximum Scour Depth at Bridge Piers in Case of Debris Accumulation

رویکردهای نوین در مهندسی آب و محیط زیست, 2023
Local scour at the bridge piers is one of the most important factors threatening the stability of the bridges constructed on the rivers. This issue is mainly due to wake and horse shoe vortices. One of the key factors which intensify the local scour depth in bridge pier and usually is not considered is the accumulation of wooden debris in front of the ...
Abdolreza Zahiri, Mahdi Meftah
openaire   +1 more source

Fundamental Hydraulic Geometry Relations as an Accessible Tool for Identifying Channel Instability Over National Scales

River Research and Applications, EarlyView.
ABSTRACT The geometry of alluvial river channels can give insight into their stability, which can inform predictions of morphological change, flood risk and ecological degradation. Fundamental hydraulic geometry relations can be used to estimate the equilibrium dimensions of stable river channels by evaluating the balance between the erodibility of bed
David Whitfield, Edwin Baynes, Stephen Rice, Richard Jeffries   +3 more
wiley   +1 more source

Ecological dams: Concept, transformation, and developmental pathways of dam projects under the framework of river ethics

River, EarlyView.
This figure elaborates the scientific connotation and systematic construction path of ecological dams. Adopting a full‐cycle analysis framework centered on ecological impacts and benefits throughout the project lifecycle, it covers four key stages from planning to post‐completion, with core focuses on risk avoidance, impact control, ecological health ...
Jianhua Wang, Yunchang Zhang, Sainan Wu, Peng Hu   +3 more
wiley   +1 more source