Results 81 to 90 of about 70,723 (326)

Structural heredity in the casting of eutectic cast iron

Литьë и металлургия
It has been shown that the effect of structural inheritance in casting eutectic cast irons can be explained from the standpoint of nanostructured crystallization of foundry alloys. Proposed is a mechanism of structural heredity when casting eutectic cast
E. I. Marukovich, V. Yu. Stetsenko, A. V. Stetsenko   +2 more
doaj   +1 more source

Measuring every particle's size from three-dimensional imaging experiments

, 2012
Often experimentalists study colloidal suspensions that are nominally monodisperse. In reality these samples have a polydispersity of 4-10%. At the level of an individual particle, the consequences of this polydispersity are unknown as it is difficult to
A van Blaaderen, A van Blaaderen, A van Blaaderen, AD Dinsmore, AD Dinsmore, CE Zachary, CJ Dibble, CP Royall, DGAL Aarts, ER Weeks, FC Cheong, HJ Schöpe, J Baumgartl, J Brujić, J Hernández-Guzmán, JA Dijksman, JC Crocker, L Berthier, MC Jenkins, MJ Pond, N Xu, O Ueberschär, P D'Haene, P Rein ten Wolde, P Sollich, PJ Steinhardt, PN Pusey, PN Pusey, R Kurita, R Kurita, RPA Dullens, S Asakura, S Auer, S Slotterback, S-H Lee, SI Henderson, T Kawasaki, T Narumi, U Gasser, V Prasad, VJ Anderson, WCK Poon, WK Kegel, Y Gao   +43 more
core   +1 more source

The Centers of Early-Type Galaxies with HST II: Empirical Models and Structural Parameters [PDF]

, 1996
We present a set of structural parameters for the central parts of 57 early-type galaxies observed with the Planetary Camera of the Hubble Space Telescope.
Y. Byun, C. Grillmair, S. Faber, E. Ajhar, A. Dressler, J. Kormendy, T. Lauer, D. Richstone, S. T. U. O. Hawaii, UCOLick Observatory, Kitt Peak National Observatory, The Observatories of the Carnegie Institution of Washington, U. Michigan, Canadian Institute for Theoretical Astrophysics   +13 more
semanticscholar   +1 more source

Thermoelectric Modules Incorporating MgAgSb and Mg3(Sb,Bi)2 Synthesized Using a Melting Method

Advanced Engineering Materials, EarlyView.
A scalable synthesis method for a thermoelectric material of MgAgSb is established. A thermoelectric power module of MgAgSb/Mg3(Sb,Bi)2 is fabricated, showing the conversion efficiency of 7.4% at ΔT = 315 K. The performance is comparable to conventional Bi2Te3 modules when they are operated with an air‐cooled heat exchanger.
Kazuo Nagase, Hironori Ohshima, Kunihiro Kihou, Haruno Kunioka, Ushin Anazawa, Ryosuke Sakagami, Yosuke Goto, Masayuki Murata, Chul‐Ho Lee   +8 more
wiley   +1 more source

On the crystallization of austenitic carbide eutectic of chromium cast iron

Литьë и металлургия
Crystallization of austenitic carbide eutectic of chromium cast iron is a nanostructural process in which iron, graphite and chromium nanocrystals play a major role.
E. I. Marukovich, V. Yu. Stetsenko, A. V. Stetsenko   +2 more
doaj   +1 more source

Coordinated optimization of visual cortical maps (II) Numerical studies [PDF]

, 2012
It is an attractive hypothesis that the spatial structure of visual cortical architecture can be explained by the coordinated optimization of multiple visual cortical maps representing orientation preference (OP), ocular dominance (OD), spatial frequency,
A Antonini, A Das, A Grabska-Barwinska, A Grinwald, A Jacobs, A Shmuel, A Soward, A Zepeda, AA Koulakov, AP Bartsch, B Chapman, BA Malomed, BJ Farley, BS Wang, C Blakemore, C Blakemore, C von der Malsburg, CE Giacomantonio, CF Stevens, CJ Shatz, CJ Shatz, CN Levelt, D Bensimon, D Boyer, D Boyer, D Mitchell, D Shulz, DC Johns, DE Mitchell, DE Mitchell, DE Mitchell, DL Adams, DL Adams, DL Ringach, DL Ringach, Dominik Heide, E Bartfeld, E Bodenschatz, E Erwin, E Erwin, EM Slimko, F Wolf, F Wolf, F Wolf, FH Busse, Fred Wolf, GG Blasdel, GG Blasdel, GG Blasdel, GJ Goodhill, H Nakagama, H Ritter, H Wassle, H Yu, HY Lee, HZ Shouval, JA Bednar, JA Bednar, JB Swift, JE Dennis, JR Villablanca, Justin C. Crowley, K Albus, K Lehmann, K Obermayer, K Obermayer, K Obermayer, K Ohki, KD Miller, KD Miller, KD Miller, KR Duffy, KR Jones, L Reichl, L Reichl, Lars Reichl, LE White, LE White, M Argentina, M Cynader, M Hammele, M Hübener, M Imbert, M Kaschube, M Kaschube, M Kaschube, M Kaschube, M Kaschube, M Sato, M Schnabel, M Weliky, MA Carreira-Perpinan, Matthias Kaschube, MC Crair, MC Cross, MW Cho, MW Cho, N Mayer, ND Mermin, NL Rochefort, NP Issa, NV Swindale, NV Swindale, NV Swindale, NV Swindale, NV Swindale, NV Swindale, NW Daw, Olaf Sporns, P Buisseret, P Buisseret, P Coullet, PC Bressloff, PN Brown, R Engelmann, RAW Galuske, RE Soodak, S Grossberg, S LeVay, S Löwel, S Löwel, S Löwel, S Rathjen, S Rathjen, S Schuett, SB Paik, SC Rao, Siegrid Löwel, SJ Espinosa, T Bonhoeffer, T Bonhoeffer, T Bonhoeffer, TN Wiesel, U Ernst, W Keil, W Keil, W Zhang, W Zimmermann, W Zimmermann, WH Bosking, X Xu, Y Diao, Y Fregnac, Y Fregnac, Y Fregnac, Y Kremer, Y Li, Y Li, Y Pomeau, Y Pomeau   +149 more
core   +4 more sources

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source

THE INFLUENCE OF ACTIVE SURFACE CENTERS ON REACTIVITY OF MINERAL ADDITIVES

Современная наука и инновации, 2022
The paper presents the results of investigations of active centers of crystallization of mineral additives in the form of finely divided fillers formed during stripping and characterizing their reactivity in ...
Said-Alvi Y. Murtazaev, M. Sh. Salamanova, M. S. Saidumov, Z. Kh. Ismailova   +3 more
doaj  

Influence of Chemical Composition on Concentration Undercooling of Structural Steels [PDF]

Archives of Foundry Engineering
The article studies the undercooling of steel melt around the solid particles, which is one of the main factors determining the rates of nucleation and growth of crystallization centers. Particularly, the effect of chemical composition on this factor for
Y. Aftandiliants, S. Gnyloskurenko, H. Meniailo, V. Khrychikov   +3 more
doaj   +1 more source

Direct observation of crystallization and melting with colloids

Proceedings of the National Academy of Sciences of the United States of America, 2019
Significance This paper reports on colloid experiments that provide a unique 3D experimental view at the particle level of the fundamental mechanism by which liquids crystallize and crystals melt.
Hyerim Hwang, D. Weitz, F. Spaepen
semanticscholar   +1 more source