Results 31 to 40 of about 47,195 (313)

Microstructural evolution and mechanical properties of chip-stacking micro-solder joints under TG bonding process

Journal of Materials Research and Technology
As chip-stacking micro-joints are downsized to less than 20 μm, the microstructural evolution induced by multiple TG bonding has emerged as a critical concern for mechanical properties.
Ye Tian, Hongsheng Xu, Yuejun Li, Zhongyu Liu, Daoming Fan, Chao Wang, Ziqiang Li, Wei Liu, Xing Chen, Fengshun Wu   +9 more
doaj   +1 more source

Microstructural evolution of pre-twinned Mg alloy with annealing temperature and underlying boundary migration mechanism

Journal of Magnesium and Alloys, 2023
This study investigates the variations in the microstructural characteristics of a pre-twinned Mg alloy with the temperature of the subsequent annealing treatment.
Ye Jin Kim, Jong Un Lee, Gyo Myeong Lee, Sung Hyuk Park   +3 more
doaj   +1 more source

Brainstem and Cerebellar Volume Loss and Associated Clinical Features in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Progressive Supranuclear Palsy (PSP) is a neurodegenerative ‘tauopathy’ with predominating pathology in the basal ganglia and midbrain. Caudal tau spread frequently implicates the cerebellum; however, the pattern of atrophy remains equivocal.
Chloe Spiegel, Timothy P. Siejka, Cassandra Marotta, Josh J. Y. Lee, Kelly Bertram, Terence J. O'Brien, Meng Law, Lucy Vivash, Ian H. Harding   +8 more
wiley   +1 more source

Microstructure modelling of hot deformation of Al–1%Mg alloy

, 2009
This study presents the application of the finite elementmethod and intelligent systems techniques to the prediction of microstructural mapping for aluminium alloys. Here, the material within each finite element is defined using a hybrid model.
D.A. Linkens, E.S. Puchi Cabrera, Sellars, C., Sellars, CM, Howard, I., Howard, IC, J. Talamantes-Silva, M.F. Abbod, Puchi Cabrera, ES, Linkens, D., I.C. Howard, Puchi Cabrera, E., Abbod, MF, Beynon, J., Linkens, DA, Talamantes-Silva, J, Talamantes-Silva, J., Beynon, JH, Abbod, M., C.M. Sellars, J.H. Beynon   +20 more
core   +1 more source

Micro-to-nano-scale microstructural evolution and mechanical characteristics of (CrFeNiCu)100-xAlx high entropy alloys with x = 0, 3, 5, 7, 10, 12 and 15 at.%

Journal of Materials Research and Technology
High entropy alloys (HEAs), as advanced materials, have gained significant attention over the past decade owing to their exceptional properties. As-cast (CrFeNiCu)100-xAlx HEAs (x = 0, 3, 5, 7, 10, 12, and 15 at.%) were designed by adding Al as a minor ...
Dilshodbek Yusupov, Sung Hwan Hong, Muhammad Aoun Abbas, Jun Su Ha, Gyeol Chan Kang, Elyorjon Jumaev, Hae Jin Park, Gian Song, Jürgen Eckert, Ki Buem Kim   +9 more
doaj   +1 more source

Complex strain paths in polycrystalline copper: microstructural aspects

Materials Research, 1999
Microstructural aspects of polycrystalline copper sheets subjected to complex strain paths were analysed in this work. Dislocation structures developed during the strain paths (rolling and tension) and the evolution of this microstructure during ...
M.F. Vieira, J.V. Fernandes
doaj   +1 more source

Hot deformation behaviors and microstructure evolution of Mg–Si–Sr alloy

Materials Research Express, 2020
The hot deformation behavior and microstructural evolution of as-extruded Mg-0.55 wt.%Si-0.75 wt.%Sr alloys at 250 °C with the compressive strain rate of 1 s ^−1 , 0.1 s ^−1 , 0.01 s ^−1 and 0.001 s ^−1 were investigated via electron backscatter ...
Lei Zhang, Jinhui Wang, Yunpeng Zhu, Bo Shi, Peipeng Jin   +4 more
doaj   +1 more source

Microstructure Evolution of Tin–Lead Solder [PDF]

IEEE Transactions on Components and Packaging Technologies, 2004
Microstructural length scales are relatively large in typical soldered connections. The microstructure which is continuously evolving is known to have a strong influence on damage initiation and propagation. In order to make accurate lifetime predictions by numerical simulations, it is therefore necessary to take the microstructural evolution into ...
Ubachs, R.L.J.M., Schreurs, P.J.G., Geers, M.G.D.   +2 more
openaire   +2 more sources

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

The evolution of robust development and homeostasis in artificial organisms

, 2008
During embryogenesis, multicellular animals are shaped via cell proliferation, cell rearrangement, and apoptosis. At the end of development, tissue architecture is then maintained through balanced rates of cell proliferation and loss. Here, we take an in
Baum, B, Basanta, D, Miodownik, M, David Basanta, Mark Miodownik, Buzz Baum   +5 more
core   +1 more source