Results 31 to 40 of about 85,326 (297)

Multi-Objective Optimization of Different Channel Shapes in Heat Exchangers [PDF]

Journal of Chemical and Petroleum Engineering, 2021
The effect of geometric parameters of the zigzag, rectangular, and serpentine channels on convective heat transfer coefficient and pressure drop was investigated using computational fluid dynamics (CFD). In all channels, the same boundary conditions were
Saeid Salimi, Reza Beigzadeh
doaj   +1 more source

Giant serpentine aneurysms [PDF]

Neurosurgical Focus, 2009
Segal and McLaurin first described giant serpentine aneurysms, based on their distinct angiographic features, in 1977. These lesions are ≥ 25 mm, partially thrombosed aneurysms with a patent, serpiginous vascular channel that courses through the aneurysm.
Lana D, Christiano, Gaurav, Gupta, Charles J, Prestigiacomo, Chirag D, Gandhi   +3 more
openaire   +2 more sources

Effect of the disorder in graphene grain boundaries: A wave packet dynamics study [PDF]

, 2013
Chemical vapor deposition (CVD) on Cu foil is one of the most promising methods to produce graphene samples despite of introducing numerous grain boundaries into the perfect graphene lattice. A rich variety of GB structures can be realized experimentally
Alexandre Mayer, Bae, Biró, Chanyong Hwang, Feit, Fleck, Garraway, Géza I. Márk, Haydock, Hwang, Kotakoski, Kurasch, Lherbier, Li, László P. Biró, Malola, Mayer, Monteverde, Márk, Márk, Nemes-Incze, Ni, Novoselov, Peres, Philippe Lambin, Péter Vancsó, Radchenko, Simonis, Suzuura, Tapasztó, Tsen, Tuan, Vancsó, Vancsó, Yazyev   +34 more
core   +2 more sources

Bringing together evolution on serpentine and polyploidy: spatiotemporal history of the diploid-tetraploid complex of Knautia arvensis (Dipsacaceae).

PLoS ONE, 2012
Polyploidization is one of the leading forces in the evolution of land plants, providing opportunities for instant speciation and rapid gain of evolutionary novelties.
Filip Kolář, Tomáš Fér, Milan Štech, Pavel Trávníček, Eva Dušková, Peter Schönswetter, Jan Suda   +6 more
doaj   +1 more source

Study on Process Mineralogy of a Copper-Nickel Polymetallic Sulfide Ore

Kuangchan zonghe liyong, 2022
In this study, the process mineralogy of a copper-nickel polymetallic sulfide ore was studied. Results show that the main useful minerals in the ore are nickel-pyrite and chalcopyrite.
Weijun Tan, Zeping Feng
doaj   +1 more source

A review of mineral carbonation technologies to sequester CO2 [PDF]

, 2014
Carbon dioxide (CO2) capture and sequestration includes a portfolio of technologies that can potentially sequester billions of tonnes of CO2 per year.
A. Sanna, Andersen, Arickx, Baciocchi, Baciocchi, Baciocchi, Baciocchi, Back, Balaz, Baldyga, Balucan, Becker, Berner, Bobicki, Bodénan, Bonenfant, Bonenfant, Bonfils, Boot-Handford, Boudier, Broecker, Chang, Chang, Chang, Chiang, Cooling, Costa, Daval, Declercq, Dessert, Dilmore, Doucet, Drever, Dri, Dri, Ecke, Eisaman, El-Sheikh, Eloneva, Eloneva, Eloneva, Eloneva, Faatz, Fabian, Fagerlund, Fagerlund, Fagerlund, Falkowski, Favre, Fedoročkova, Fernández Bertos, Fernández Bertos, Flaathen, Folger, G. Caramanna, Gahan, Gerdemann, Gerdemann, Gislason, Gislason, Gislason, Goldberg, Goldberg, Goldberg, Goldberg, Gunning, Gunning, Gunning, Hallenbeck, Haug, Haug, Haug, Highfield, Hitch, Hitch, Holmes, House, House, Huijgen, Huijgen, Huijgen, Huijgen, Huijgen, Huijgen, Huntzinger, Huntzinger, Huntzinger, Hänchen, Hänchen, Iizuka, Johnston, Jones, Jones, Kashef-Haghighi, Katsuyama, Kelem, Kirchofer, Kodama, Kondratenko, Krevor, Krevor, Kuusik, Kwak, Kwak, Kwon, Lackner, Larachi, Lee, Lekakh, Levenspiel, Li, Li, Lin, Lindeboom, M. M. Maroto-Valer, M. Uibu, Maguire, Maroto-Valer, Matter, Matter, Matter, Mayoral, McGrail, Meima, Metz, Monkman, Montes-Hernandez, Montes-Hernandez, Munz, Muriithi, Nduagu, Nicholls, Nyambura, O'Connor, O'Connor, O'Connor, O'Connor, O'Connor, Olajire, Olajire, Olsen, Olsen, Olsen, Oskierski, Pacala, Pachauri, Pan, Park, Park, Park, Paukert, Perez-Lopez, Pokrovsky, Polettini, Praetorius, Qiao, R. Kuusik, Raschman, Rau, Reddy, Reddy, Reinhardt, Rendek, Renforth, Rosenthal, Sahoo, Sahu, Said, Salek, Sanna, Sanna, Sanna, Sanna, Santos, Santos, Santos, Santos, Seifritz, Shih, Si, Sigfusson, Sipilä, Soong, Stockmann, Stolaroff, Stolaroff, Sun, Tai, Teir, Teir, Teir, Teir, Teir, Teir, Teramura, Uibu, Uibu, Uibu, Uibu, Van Gerven, Velts, Verduyn, Verduyn, Wang, Wang, Wang, Wang, Wang, Wanjari, Wee, Wilson, Yadav, Yan, Zakharova, Zevenhoven   +214 more
core   +1 more source

Flowering time evolution is independent of serpentine tolerance in the California flora

Ecosphere, 2017
Comparative phylogenetic tests have been only recently applied to the many hypotheses about the role ultramafic (serpentine) soils play in the evolution and ecology of regional floras.
Adam Schneider
doaj   +1 more source

Diagenesis of the Sedimentary Fe–Ni Deposits of Euboea: Evidence Based on Phyllosilicate Mineralogy

Materials Proceedings, 2021
A set of samples with different textures from the sedimentary Fe–Ni deposits of Central Euboea, Greece, were studied with XRD and SEM-EDS to investigate the relationships between phyllosilicates present.
Spyros Cheliotis-Chatzidimitriou, Georgios E. Christidis, Ioannis Marantos   +2 more
doaj   +1 more source

Serpentine tongue [PDF]

Neurology, 2008
A 69-year-old man presented with parkinsonism (asymmetric pill-rolling tremor, bradykinesia, and rigidity) and a distinctive serpentine tongue dyskinesia (video). The movement was constantly present at rest, stopping …
Sheehy, S, Lawrence, T, Thevathasan, A
openaire   +3 more sources

2-hydroxyphosphonoacetic Acid to Eliminate the Adverse Effect of Serpentine on Chalcopyrite Flotation

Kuangchan zonghe liyong
This is an article in the field of mineral processing engineering. For the flotation of sulfide ores whose gangue mineral is serpentine, serpentine can deteriorate the flotation of sulfide ores due to its easy mudification.
Dongdong YAO, Fen JIAO, Wenhao JIA, Qian WEI, Zuchao PAN, Jingjing XIONG   +5 more
doaj   +1 more source