Results 31 to 40 of about 911 (226)

Experimental investigation of the effect of the presence of obstacles at the end of the output keys of the C-type piano key weir on its downstream scour [PDF]

علوم آب و خاک
Piano key weirs are a type of non-linear weir that have a higher discharge coefficient than similar linear weirs. These hydraulic structures have a lightweight foundation and a simple structure is designed and installed on dams and drainage channels. Due
A. Khoshfetrat, Y. Neamah Abdulhasan
doaj  

Beyond the Gold Standard: Towards Industrially Viable Electrodes for Durable Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
Transparent and opaque electrode materials are mapped by raw material cost per 1 m2 electrode area and retained median device efficiency after heat–light ageing. FTO offers a lower‐cost and more stable alternative to ITO, while Cr/Al provides the lowest‐cost rear electrode investigated with Au‐like stability and substantially improved durability ...
Tino Lukas, Manuel Kober‐Czerny, Ali Reza Nazari Pour, James McGettrick, Georgios Loukeris, Clemens Baretzky, Shuaifeng Hu, Junke Wang, Chia‐Yu Chang, Sam Teale, Bowei Li, Trystan M. Watson, Martin Stolterfoht, Robert L. Z. Hoye, Philippe Holzhey, Lukas Wagner, Markus Kohlstädt, Henry J. Snaith   +17 more
wiley   +1 more source

Challenges and enablers in fluidization technology

AIChE Journal, EarlyView.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source

Linking community structure and climate vulnerability in desert plant assemblages of southern California

American Journal of Botany, EarlyView.
Abstract Premise Desert plant assemblages in southern California provide an opportunity to link patterns of community structure with climate‐driven vulnerability in a rapidly changing environment. California sustains an exceptionally diverse flora of approximately 4300 plant species, with 31% identified as endemic.
Hector Zumbado‐Ulate, Luis E. Barrios, Danelle A. Baronia, G. Darrel Jenerette, Lynn C. Sweet   +4 more
wiley   +1 more source

Experimental Investigation of Local Scour Downstream of a Type B Piano Key Weir on Sand and Gravel Bed Materials [PDF]

علوم آب و خاک
Piano key weirs are a new form of labyrinth weirs and exhibit nonlinear characteristics. Due to their high efficiency regarding flow capacity, it is crucial to investigate local scour and identify solutions to mitigate it.
L. Babakhah, A. Khoshfetrat, E. Delavari
doaj  

Separation and Valorization of Chlorine From Tail Gas Streams

Angewandte Chemie International Edition, EarlyView.
A commercially available ion exchange resin was found to adsorb chlorine gas selectively in the presence of other gases reversibly forming the corresponding trichloride species [IEx][Cl3]. This discovery was telescoped to an efficient process for the recycling and valorization of chlorine from industrially abundant tail gas streams to base chemicals ...
Gesa H. Dreyhsig, Merlin Kleoff, Patrick Voßnacker, Elisabeth Dorn, Jacob H. Richter, Sebastian Riedel   +5 more
wiley   +1 more source

Multi-Indicator Grading-Based Warning System and Mitigation Strategies of Cross-Sea Bridge Foundations Subject to Scour Risk

Advances in Civil Engineering
The construction of cross-sea bridges is increasingly essential in modern infrastructure, but it poses significant challenges due to complex environmental conditions such as strong tidal forces, waves, and ocean currents.
Guangli Meng, Xiongjie Xiao, Wei Ding, Yungeng Wang, Xiaolong Ma   +4 more
doaj   +1 more source

Local scour depth at piles group exposed to regular waves: On the assessment of expressions based on classification concepts and evolutionary algorithms

Results in Engineering
An accurate estimation of local scour depth around piles group is inevitably essential to provide stability of marine structures. Over the past decades, many investigations have been made to understand the scouring process at piles group exposed to waves
Mohammad Najafzadeh, Razieh Sheikhpour
doaj   +1 more source

Enhanced Artificial Neural Network with Harris Hawks Optimization for Predicting Scour Depth Downstream of Ski-Jump Spillway

Applied Sciences, 2020
A spillway is a structure used to regulate the discharge flowing from hydraulic structures such as a dam. It also helps to dissipate the excess energy of water through the still basins. Therefore, it has a significant effect on the safety of the dam. One
Saad Sh. Sammen, Mohammad Ali Ghorbani, Anurag Malik, Yazid Tikhamarine, Mohammad AmirRahmani, Nadhir Al-Ansari, Kwok-Wing Chau   +6 more
doaj   +1 more source

Revisiting paravertebral muscles in European rabbits (Oryctolagus cuniculus) and European brown hares (Lepus europaeus) (Leporidae; Lagomorpha)

The Anatomical Record, EarlyView.
Abstract Domesticated European rabbits (Oryctolagus cuniculus) have long been chosen as laboratory model organisms. Despite this, there has been no definitive study of the vertebral musculature of wild rabbits. Relevant descriptions of well‐studied veterinary model mammals (such as dogs) are generally applicable, but not appropriate for a species ...
Nuttakorn Taewcharoen, Emma Sherratt, Philip Stott, Rachel Norris   +3 more
wiley   +1 more source