Results 71 to 80 of about 139,098 (277)

Experiments and Practices on Softening Clay Clogging in Grouting Pipelines of Coal Mine

Meikuang Anquan, 2020
To prevent and cure clay clogging in grouting pipelines of coal mine water control, experiments and practices on softening clay clogging in grouting pipelines of coal mining were studied.
LI Tao, GAO Ying
doaj   +1 more source

Gradient Clogging in Depth Filtration

, 1998
We investigate clogging in depth filtration, in which a dirty fluid is ``cleaned'' by the trapping of dirt particles within the pore space during flow through a porous medium.
A. O. Imdakm, B. Kahng, C. Ghidaglia, C. Ghidaglia, C. Tien, C. Tien, D. G. Harlow, D. Houi, D. Sornette, H. E. Daniels, J. Dodds, J. Galambos, J. H. D. Hampton, J. Lee, L. de Arcangelis, L. M. Schwartz, M. M. Sharma, M. M. Sharma, M. M. Sharma, M. Sahimi, M. Sahimi, P. L. Leath, P. M. Duxbury, S. L. Phoenix, S. Redner, Somalee Datta, W. A. Curtin   +26 more
core   +1 more source

Simulating Dynamical Features of Escape Panic [PDF]

, 2000
One of the most disastrous forms of collective human behaviour is the kind of crowd stampede induced by panic, often leading to fatalities as people are crushed or trampled.
A Mintz, BD Jacobs, D Elliott, D Helbing, D Helbing, DE Wolf, Dirk Helbing, E Quarantelli, GH Ristow, GK Still, HH Kelley, HH Kelley, Illés Farkas, KH Drager, M Ebihara, NR Johnson, R Brown, RA Smith, T Vicsek, Tamás Vicsek, U Weidmann, WM Predtetschenski   +21 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Study on the pore blocking characteristics and cleaning methods of permeable asphalt mixtures based on accelerated clogging simulation experiments

Case Studies in Construction Materials
Clogging in permeable asphalt pavements compromises their functional properties. Understanding clogging characteristics and developing appropriate maintenance methods is crucial.
Yin An, Lizhi Du, Wenting Dai, Kai Zhang, Yong Wang, Wei Guo   +5 more
doaj   +1 more source

Ladle Nozzle Clogging during casting of Silicon-Steel

High Temperature Materials and Processes, 2019
To figure out the reason causing ladle nozzle clogging during a continuous casting process (or CC for short) for the silicon steel and get away to solve it, this paper studied the theoretical calculation of flow rates during casting, inclusions around ...
Kong Wei, Chen Ying-Feng, Cang Da-Giang
doaj   +1 more source

Effect of fulvic acid and Cu(II) on the suspended particles clogging of porous media during artificial recharge

Shuiwen dizhi gongcheng dizhi, 2023
Artificial recharge is an effective technology to solve the problem of groundwater over-exploitation. Clogging of porous media is the bottleneck affecting groundwater recharge. Most studies have focused on the clogging of suspended particles. Few studies
Haozhi LIANG, Huan WANG, Junjie ZHANG, Yongyi LIU, Yunhai FANG   +4 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Precursory arch-like structures explain the clogging probability in a granular hopper flow

Communications Physics
The clogging phenomenon finds extensive application in both industrial processes and daily life events. While this broad spectrum of application motivated extensive research to identify the general factors underlying the clogging mechanism, it results in
Shuyang Zhang, Zhikun Zeng, Houfei Yuan, Zhifeng Li, Yujie Wang   +4 more
doaj   +1 more source

Pollution profiling and particle size distribution within permeable paving units – with and without a geotextile [PDF]

, 2012
The aim of this paper is to investigate the sediment and pollution profiling and particle size distribution with depth within permeable paving structures, both with and without a geotextile.
Jefferies, Chris, Mullaney, Jennifer, Rikalainen, Päivi   +2 more
core   +3 more sources