Results 61 to 70 of about 16,306,003 (350)

ELECTRICAL CONDUCTIVITY OF BORATE-BARIUM GLASS C78-5 IN THE EDUCATION AND GROWTH OF NANOCRYSTALS [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
The temperature dependence and kinetics of changes in the electrical conductivity at a constant temperature annealing of borate-barium glass C78-5 is investigated experimentally. The values of the activation energy of electrical conductivity in different
A.M. Karmokov, Z.V. Shomakhov, O.A. Molokanov   +2 more
doaj  

Primordial Black Hole Formation during First-Order Phase Transitions [PDF]

, 1999
Primordial black holes (PBHs) may form in the early universe when pre-existing adiabatic density fluctuations enter into the cosmological horizon and recollapse. It has been suggested that PBH formation may be facilitated when fluctuations enter into the
B. D. Fields, B. J. Carr, C. Afonso, C. F. Alcock, C. Flynn, C. Gundlach, C. R. Evans, C. Renault, C. Schmid, C. Schmid, D. S. Graff, E. W. Kolb, G. M. Fuller, H. Kodama, J. C. Niemeyer, J. C. Niemeyer, J. C. Niemeyer, K. Cook, K. Jedamzik, K. Jedamzik, K. Jedamzik, L. J. Hall, M. Crawford, M. W. Choptuik, S. Charlot, S. W. Hawking, T. Koike, T. Nakamura, T. W. Baumgarte, W. C. Hernandez, Ya. B. Zel’dovich   +30 more
core   +2 more sources

Sirolimus for Extracranial Arteriovenous Malformations: A Scoping Review of the Evidence in Syndromic and Non‐Syndromic Cases

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Arteriovenous malformations (AVMs) are rare, high‐flow, vascular anomalies that can occur either sporadically or as part of a genetic syndrome. AVMs can progress with serious morbidity and even mortality if left unchecked. Sirolimus is an mTOR inhibitor that is effective in low‐flow vascular malformations; however, its role in AVMs is unclear.
Will Swansson, Ingrid Winship, Gary Hammerschlag, Laura Scardamaglia   +3 more
wiley   +1 more source

Compositional Design of High-Entropy Alloys: Advances in Structural and Hydrogen Storage Materials

Alloys
High-entropy alloys (HEAs) present a vast compositional design space, characterized by four core effects—high configurational entropy, sluggish diffusion, severe lattice distortion, and the cocktail effect—which collectively underpin their exceptional ...
Shaopeng Wu, Dongxin Wang, Nairan Wang, Xiaobo Ma, Zhongxiong Xu, Le Li, Mingda Han, Cheng Zhang   +7 more
doaj   +1 more source

Evolution of gaseous disk viscosity driven by supernova explosion in star-forming galaxies at high redshift

, 2009
Motivated by Genzel et al.'s observations of high-redshift star-forming galaxies, containing clumpy and turbulent rings or disks, we build a set of equations describing the dynamical evolution of gaseous disks with inclusion of star formation and its ...
Brooks, Chang-Shuo Yan, Chen, Chen Hu, Daddi, Dib, Dib, Fei Xiang, Föster Schreiber, Föster Schreiber, Genzel, Jian-Min Wang, Jun-Qiang Ge, Kato, Kawakatu, Krumholz, Law, Lu, Lynden-Bell, Naab, Noeske, Shakura, Shu Zhang, Tacconi, Tacconi, Thompson, Wada, Wang, Wang, Wang, Wright, Yan-Mei Chen, Yan-Rong Li   +32 more
core   +1 more source

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior, Edmara Bazoni Soares Maia, Soad Fuentes‐Alabí, Courtney E. Sullivan, Monnie Abraham, Mauricio Maza, Liliana Vásquez Ponce, Regina Aparecida Garcia Lima   +7 more
wiley   +1 more source

Formación de fases en materiales cerámicos PZT dopados con fósforo

Boletín de la Sociedad Española de Cerámica y Vidrio, 2001
The surface modification of lead zirconate titanate ceramics with phosphate ester left a phosphorus residue absorved onto the particle surface. During the sintering processes, this surface layer reacts with the PZT to form lead rich compounds, as Pb3(PO4)
Celi, L. A., Caballero, A. C., Villegas, M., Eiras, J. A., Moure, C., Fernández, J. F.   +5 more
doaj  

ZINC MICRO-ALLOYING ADDITIONS IN Sn-0.7Cu LEAD-FREE SOLDER ALLOYS. SHORT REVIEW [PDF]

European Journal of Materials Science and Engineering, 2017
Sn-Pb solder alloy has been replaced with lead-free solder alloys due to the negative effect for environment and human health. The additions of Zinc (Zn) micro-alloying element in Sn0.7Cu lead-free solder alloy were reported by several researchers in ...
Intan Nashasha Amira IBRAHIM, MOHD Arif Anuar MOHD SALLEH   +1 more
doaj  

Laves Phase Formation in High Entropy Alloys

Metals, 2021
One of the intriguing recent results in the field of high-entropy alloys is the discovery of single-phase equiatomic multi-component Laves intermetallics.
Roman Ryltsev, Vasiliy Gaviko, Svetlana Estemirova, Evgenii Sterkhov, Lubov Cherepanova, Denis Yagodin, Nikolay Chtchelkatchev, Nikolay Dubinin, Sergey Uporov   +8 more
doaj   +1 more source

On the mechanism of formation of asymmetric ultra- and hyper-filtration membranes [PDF]

, 1977
A study has been made of the formation of membranes from solutions of poly(2,6-dimethyl-1, 4-phenylene oxide) (P.P.0.2) in trichloro-ethylene/alcohol mixtures and using methanol as the precipitation agent.
Broens, L., Koenhen, D.M., Smolders, C.A.   +2 more
core   +3 more sources