Results 131 to 140 of about 61,870 (307)

Investigating the scour at piers of successive bridges with debris accumulation

Journal of Infrastructure Preservation and Resilience
Bridge scour around piers and abutments poses a significant threat to bridge stability, particularly in dynamic river environments like the Tigris River in Baghdad.
Mahmoud Saleh Al-Khafaji, Layth Abdulameer, Aysar Tuama Al-Awadi, Najah M. L. Al Maimuri, Ahmed N. Al-Dujaili   +4 more
doaj   +1 more source

Direct numerical simulation of the oscillatory flow around a sphere resting on a rough bottom

, 2017
The oscillatory flow around a spherical object lying on a rough bottom is investigated by means of direct numerical simulations of continuity and Navier-Stokes equations.
Blondeaux, Paolo, Calantoni, Joseph, Mazzuoli, Marco, Simeonov, Julian   +3 more
core   +1 more source

Update on Ouratea cidiana Sastre (Ochnaceae), a microendemic species from the Amazon: enlightening the identity and conservation status

Nordic Journal of Botany, EarlyView.
Ouratea cidiana (Ochnaceae) is a microendemic shrub species from the Brazilian Amazonia, occurring along the banks of the Trombetas River and restricted to the Cachoeira Porteira region, in western Pará State. Since the original collection nearly forty years ago, no additional records have been made, which is concerning given the continuous decline in ...
Clebiana de Sá Nunes, Mayara Dias Caldas, Fúvio Rubens Oliveira‐da‐ Silva, Anna Luiza Ilkiu‐ Borges, André dos Santos Bragança Gil   +4 more
wiley   +1 more source

Photogrammetric characterization of the scour cavity time evolution around a complex bridge pier [PDF]

, 2015
Bento, Ana Margarida, Maia, Rodrigo, Pêgo, João Pedro, Ramos, Pedro Xavier   +3 more
core   +1 more source

Taxonomic novelties in subgenus Euphorbia (Euphorbiaceae) from South India

Nordic Journal of Botany, EarlyView.
Extensive floristic explorations throughout southern India have uncovered some noteworthy taxonomic additions within the subgenus Euphorbia (Euphorbiaceae). Three distinct taxa of Euphorbia are described and illustrated herein as E. sankarensis, E. bahalita and E. tortilis var. mysorensis.
Sarojini Devi Naidu, Raja Kullayiswamy Kusom   +1 more
wiley   +1 more source

Noise, Hearing, and Communication in the Operating Room: A Mixed‐Methods Study

Otolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective To evaluate noise‐related communication barriers in the operating room and to identify strategies for overcoming them. Study Design Cross‐sectional mixed‐methods survey. Setting Tertiary academic medical center. Methods An anonymous 21‐item electronic survey was distributed to operating room personnel, including surgeons ...
Sarah E. Hughes, Milisa Manojlovich, Eunice Y. Lee, Andrew S. Bolze, Candice Stegink, Dhruv Jain, Devin L. McCaslin, Kyle H. Sheetz, Rishindra M. Reddy, Michael J. Brenner   +9 more
wiley   +1 more source

A report of biological observations at Pacific Beach artificial reef, Oceanside artificial reef, and Santa Monica Bay artificial reef [PDF]

, 1991
(Document pdf contains 16 ...
Grant, John J.
core  

Fire buffers drought impacts on reproduction in a resprouting Mediterranean shrub

Oikos, EarlyView.
Fire and drought increasingly co‐occur, exposing plants to greater drought stress during post‐fire resprouting. Yet, the effect of this combination of disturbances on plant fitness remains poorly understood. Here, we examine how post‐fire resprouting influences reproductive success under drought conditions in the Mediterranean shrub Anthyllis ...
Jaime Saiz‐ Blanco, Conchita Alonso, Juli G. Pausas   +2 more
wiley   +1 more source

Catchment conversion to agriculture alters freshwater macroinvertebrate community responses to flow disturbance: results from a replicated in‐stream experiment

Oikos, EarlyView.
Anthropogenic stressors often co‐occur in ecosystems, but their combined impacts are rarely assessed using field experiments. Press disturbances particularly can reshape community dynamics, altering their capacity to withstand or recover from acute pulse disturbances by modifying response diversity.
Bridget E. White, Anne Watson, Sean T. Atkinson, Belinda J. Robson, Russell G. Death, Mark J. Hovenden, Leon A. Barmuta   +6 more
wiley   +1 more source

Estimation of scour depth at a single non-submerged vertical spur dike under unidirectional currents

Water Science and Engineering
Accurately estimating equilibrium scour depths at spur dikes remains challenging due to the complexity of scour around these structures. Scour critically threatens spur dikes built in river estuaries for enhancing navigability and preventing bank erosion.
HtayHtay Aung, Min-xi Zhang, Giuseppe Oliveto, Beniamino Onorati, Guo-liang Yu   +4 more
doaj   +1 more source