Results 41 to 50 of about 178,259 (350)

X‐Ray Tomography Analysis of Damage Mechanisms in Metal Matrix Syntactic Foams During Compression

Advanced Engineering Materials, EarlyView.
In situ synchrotron X‐ray tomography is used to investigate the internal damage mechanisms of AlSi12 metal matrix syntactic foam with ceramic hollow spheres during compressive loading. It is concluded that a homogeneous distribution of the second‐phase filler material results in a sequential collapse in a localized region; this leads to controlled and ...
Indrajeet Tambe, János Endre Maróti, Imre Norbert Orbulov, Zoltan Hegedűs, Markus Ziehmer, Carl E. Krill III, Håkan Hallberg, Pär A. T. Olsson, Johan Hektor   +8 more
wiley   +1 more source

Spin-up of low mass classical bulges in barred galaxies

, 2011
Secular evolution is one of the key routes through which galaxies evolve along the Hubble sequence. Not only the disk undergoes morphological and kinematic changes, but also a preexisting classical bulge may be dynamically changed by the secular ...
Aguerri, Ann, Athanassoula, Athanassoula, Athanassoula, Athanassoula, Athanassoula, Baugh, Bertola, Binney, Binney, Binney, Bournaud, Cappellari, Colín, Combes, Combes, Davies, Debattista, Dubinski, Eggen, El-Zant, Elmegreen, Erwin, Evans, Fall, Franx, Gadotti, Gerhard, Hernquist, Holley-Bockelmann, Hopkins, Hopkins, Illingworth, Immeli, Inma Martinez-Valpuesta, Jesseit, Kanak Saha, Katz, Kauffmann, Kereš, King, Kormendy, Kormendy, Kormendy, Kuijken, Laurikainen, Lynden Bell, Marinova, Martinez-Valpuesta, Martinez-Valpuesta, McMillan, Menéndez-Delmestre, Mo, Morelli, Méndez-Abreu, Nieto, Nowak, Ortwin Gerhard, Pfenniger, Raha, Saha, Sellwood, Sellwood, Sellwood, Sellwood, Sellwood, Sellwood, Shen, Springel, Springel, Stark, Toomre, Tremaine, Villa Vargas, Weinberg, Weinberg, Weinberg, Weinberg, White, Widrow, Zoccali, Zoccali   +82 more
core   +1 more source

Heavy elements Ba, La, Ce, Nd, and Eu in 56 Galactic bulge red giants [PDF]

, 2015
Aims. The aim of this work is the study of abundances of the heavy elements Ba, La, Ce, Nd, and Eu in 56 bulge giants (red giant branch and red clump) with metallicities ranging from -1.3 dex to 0.5 dex. Methods.
Barbuy, B., Gomez, A., Hill, V., Minniti, D., Ortolani, S., Van der Swaelmen, M., Zoccali, M.   +6 more
core   +4 more sources

Unlocking Ultra‐Long Cycle Stability of Li Metal Electrode by Separators Modified by Porous Red Phosphorus Nanosheets

Advanced Functional Materials, EarlyView.
Coating the standard polypropylene separator with a porous red phosphorous nanosheet greatly improves cycling performance in Li electrode cells. The phosphorus‐based surface chemistry deactivates electrolyte solvent decomposition and enhances the cleavage of F‐containing salt, resulting in an inorganic‐dominated electrolyte interphase (SEI) composition
Jiangpeng Wang, Mingzi Sun, Feng Lang, Zhijun Cai, Xitao Hu, Yao Gao, Chao Lin, Xueqiang Zhang, Bolong Huang, Quan Li   +9 more
wiley   +1 more source

Thick disk and pseudobulge formation in a clump cluster

EPJ Web of Conferences, 2012
Bulges in spiral galaxies have been supposed to be classified into two types: classical bulges or pseudobulges. Classical bulges are thought to form by galactic merger with bursty star formation, whereas pseudobulges are suggested to form by secular ...
Inoue S.
doaj   +1 more source

Fermi Surface Nesting and Anomalous Hall Effect in Magnetically Frustrated Mn2PdIn

Advanced Functional Materials, EarlyView.
Mn2PdIn, a frustrated inverse Heusler alloy, showing electronic‐structure driven anomalous Hall effect with Weyl crossings, Fermi‐surface nesting and near‐zero magnetization ideal for low‐magnetization spintronics. Abstract Noncollinear magnets with near‐zero net magnetization and nontrivial bulk electronic topology hold significant promise for ...
Afsar Ahmed, Arnab Bhattacharya, Prashant Singh, Ajay Kumar, Tukai Singha, Anis Biswas, Yaroslav Mudryk, I. Das   +7 more
wiley   +1 more source

Comprehensive Analysis of Stability and Variability of DNA Minimal I-Motif Structures

Molecules
Cytosine-rich DNA sequences form i-motif structures associated with various cellular functions including gene regulation. DNA sequences containing consecutive C residues are widely deemed essential for i-motif formation; however, some sequences lacking C-
Koudai Ashida, Ayumi Kitabayashi, Kazuki Nishiyama, Shu-ichi Nakano   +3 more
doaj   +1 more source

Prepositive Synergistic Bulge Design for Improving Aerodynamic Performance of Submerged Inlet

Aerospace, 2023
A submerged inlet has good stealth characteristics and a low external drag, but it also has the disadvantage of low internal flow efficiency. In view of this, a new efficiency enhancement method based on the prepositive synergistic bulge of the inlet’s ...
Xuan Bai, Baigang Mi
doaj   +1 more source

Probing the X-Ray Binary Populations of the Ring Galaxy NGC 1291 [PDF]

, 2012
We present Chandra studies of the X-ray binary (XRB) populations in the bulge and ring regions of the ring galaxy NGC 1291. We detect 169 X-ray point sources in the galaxy, 75 in the bulge and 71 in the ring, utilizing the four available Chandra ...
A. Zezas, Appleton, Arnaud, B. Luo, Baganoff, Bauer, Belczynski, Belczynski, Belczynski, Belczynski, Belczynski, Brassington, Brassington, Brassington, Broos, Buta, Chomiuk, Colbert, D.-W. Kim, de Vaucouleurs, de Vaucouleurs, Eddington, Evans, Fabbiano, Finoguenov, Fragos, Fragos, Freeman, G. Fabbiano, Gao, Grimm, Grouchy, Higdon, Hornschemeier, Irwin, Irwin, Ivanova, Junfeng Wang, K. Belczynski, Kilgard, Kim, Kim, Kim, Kim, Linden, Linden, Liu, Luo, Lyons, Mebold, N. J. Brassington, P. Tzanavaris, Park, Perrine, Phillips, Prestwich, Prestwich, Ptak, Risaliti, S. Pellegrini, Sarazin, Sell, Smith, Swartz, T. Fragos, Turner, van Driel, Voss, Xue, Zezas   +69 more
core   +3 more sources

Using In Situ TEM to Understand the Surfaces of Electrocatalysts at Reaction Conditions: Single‐Atoms to Nanoparticles

Advanced Functional Materials, EarlyView.
This review summarizes recent advances in closed‐cell in situ TEM strategies for accurate determination of the activity and stability of single‐atom catalyst systems during operation. Operando conditions causing dynamic changes of SAC systems are highlighted and we explain why ensemble average‐based optical techniques may benefit from the technological
Martin Ek, Soshan Cheong, Julie Cairney, Richard D. Tilley, Ingemar Persson   +4 more
wiley   +1 more source