Results 21 to 30 of about 1,723 (258)

Effect of double gate mechanism on scour hole characteristics [PDF]

The Egyptian International Journal of Engineering Sciences and Technology, 2022
Local scour due to free hydraulic jump downstream hydraulic structures may cause damage or complete failure of these structures, so controlling of this phenomenon is very important.
Asmaa Basyoni, Gamal Mostafa, Eman Elnikhili   +2 more
doaj   +1 more source

Amidase‐Catalyzed Desorption of CO2 Captured in Aqueous Monoethanolamine (MEA) Solutions

Angewandte Chemie, EarlyView.
CO2 is captured in aqueous monoethanolamine (MEA) sorbents as carbamate and bicarbonate/carbonate. The subsequent desorption for storage or utilization is energy‐intensive, and this is a major impediment to industrial carbon dioxide removal (CDR) processes. The desorption process can be promoted by enzymes that catalyze the dissociation of distinct CO2‐
Yang Yang, Onur Kırtel, Silke Flindt Badino, Lea Helena Strother, Laura Rotilio, Jerik Mathew Valera Lauridsen, Stefanie Neun, Jens Preben Morth, Ji‐Woong Lee, Ditte Hededam Welner, Peter Westh   +10 more
wiley   +2 more sources

Local scour around complex pier groups and combined piles at semi-integral bridge

Journal of Hydrology and Hydromechanics, 2014
This research presents an experimental study on the scouring mechanism at semi-integral bridge piers. Based on laboratory experiments, this study focuses on the relationship between scour depth in complex pier groups and combined piles bridge and various
Akib Shatirah, Jahangirzadeh Afshin, Basser Hossein   +2 more
doaj   +1 more source

Experimental study on scour at unpaved road shoulder [PDF]

MATEC Web of Conferences
Scour is often found along the shoulder of the road, especially the shoulder without pavement in suburban and rural areas. This can reduce the function of the road shoulder and increase the risk of traffic accidents.
Widiyanto Wahyu, Dey Litan, Purnomo Sanidhya Nika, Santoso Purwanto Bekti, Sugiharto Srigunawan   +4 more
doaj   +1 more source

Mechanism Design for Federated Sponsored Search Auctions [PDF]

, 2011
Recently there is an increase in smaller, domain-specific search engines that scour the deep web finding information that general-purpose engines are unable to discover.
Enrico H. Gerding, Gatti, Nicola, Enrico H Gerding, Nicola Gatti, Gerding, Enrico, Gerding, Enrico H, E. H. Gerding, Sofia Ceppi, Ceppi, Sofia   +8 more
core   +1 more source

Entropy‐Stabilized Aluminate Catalysts That Break the Activity–Stability Tradeoff in CF4 Hydrolysis

Angewandte Chemie, EarlyView.
Entropy‐stabilized aluminate breaks the activity–stability tradeoff in CF4 hydrolysis by combining a multication aluminate framework with an entropy‐stabilized lattice. An electron‐deficient Al–O environment is F‐philic but O‐phobic, enabling C–F activation while suppressing H2O poisoning. Under steam‐rich, strongly fluorinating conditions, the entropy‐
Seunghyuck Chi, Hyungmin Jeon, Yaejun Baik, DongHwan Oh, Jin Seok, Woosung Choi, Seungjun Lee, Minkee Choi   +7 more
wiley   +2 more sources

Scour features at wood bundles [PDF]

, 2021
Structures like blunt-nosed chevrons, log deflectors and double-winged log frames help in modifying the flow regime in the channel by concentrating the flow and increasing navigability.
Pagliara S., Palermo M., Roy D.
core   +1 more source

Estimation of the Maximum Scour Depth at Bridge Pier under Effects of Debris Accumulations using NF-GMDH Model and Evolutionary Algorithms [PDF]

محیط زیست و مهندسی آب, 2019
Rivers accumulate huge amounts of floating debris including the trunk, branches and leaves during the floods, leading to increase the depth of local scour around bridge piers.
Mohammad Najafzadeh, Mohammad Mahmoudi-Rad   +1 more
doaj   +1 more source

Developing empirical formulae for scour depth in front of Inclined bridge piers

Građevinar, 2023
Because of the complex flow mechanism around inclined bridge piers, previous studies have proposed different empirical correlations to predict the scouring depth in front of piers, which include regression analysis developed from laboratory measurements.
Halil İbrahim Fedakar, A. Ersin Dinçer, Zafer Bozkuş   +2 more
doaj   +1 more source

Radiation‐Resistant Kr‐Selective MOF With Record Kr/Xe Selectivity at Elevated Pressure

Advanced Science, EarlyView.
ABSTRACT The separation of Kr/Xe from spent nuclear fuel off‐gas is critical, yet most current adsorbents exhibit Xe‐Kr co‐adsorption under elevated pressures, posing challenges for industrial pressure swing adsorption processes. Herein, we present and evaluate a metal‐organic framework, CALF‐20M‐w, engineered for molecular sieving separation of Kr/Xe ...
Qihang Tian, Yinhui Li, Qingkuan Meng, Shizhen Liu, Yongzheng Wang, Bin Chen, Heping Ma   +6 more
wiley   +1 more source