Results 51 to 60 of about 1,731,507 (269)

Formación de fases en materiales cerámicos PZT dopados con fósforo

open access: yesBoletín 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.   +5 more
doaj  

Synthesis of Mo–Ti–Ta–Cr Alloy Powders by Calciothermic Reduction

open access: yesJournal of Manufacturing and Materials Processing
In this work, the synthesis of Mo–Ti–Ta–Cr alloy powders via the calciothermic reduction (CTR) of MoO3, TiO2, Ta2O5, and Cr2O3 was investigated. The synthesis process was supported by thermodynamic calculations and TG–DSC thermal analysis.
Mariia Teslia   +2 more
doaj   +1 more source

Formation of nanostructured steels by phase transformation

open access: yesScripta Materialia, 2004
A thermodynamic criterion is developed to define the finest grain size that can be achieved during phase transformation, as a function of the driving force, interfacial energies and the parent phase grain size. It is found that at large undercoolings below the equilibrium temperature, the grain size achieved in practice is far greater than predicted ...
Yokota, T.   +2 more
openaire   +1 more source

Formation of Chromatin Subcompartments by Phase Separation [PDF]

open access: yesBiophysical Journal, 2018
Chromatin is partitioned on multiple length scales into subcompartments that differ from each other with respect to their molecular composition and biological function. It is a key question how these compartments can form even though diffusion constantly mixes the nuclear interior and rapidly balances concentration gradients of soluble nuclear ...
Fabian, Erdel, Karsten, Rippe
openaire   +2 more sources

Measurable Residual Disease Monitoring During Treatment for Pediatric Acute Myeloid Leukemia in First Relapse

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survival after relapse in pediatric acute myeloid leukemia (AML) remains poor, highlighting the critical importance of identifying prognostic factors to guide optimal relapse management. Methods We investigated the prognostic impact of multiparameter flow cytometry (MFC) measurable residual disease (MRD) in 188 patients with first ...
Camilla Poulsen   +21 more
wiley   +1 more source

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

open access: yesEuropean 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   +1 more
doaj  

Survival by Race and Ethnicity in Children and Adolescents/Young Adults With Relapsed/Refractory Hodgkin Lymphoma: A Pooled Analysis of Children's Oncology Group Trials

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Despite 5‐year survival rates of over 90% among children and adolescents/young adults (CAYAs) with classic Hodgkin lymphoma (cHL), 15%–20% relapse after frontline therapy. Prior analysis of frontline Children's Oncology Group (COG) clinical trials demonstrated that, despite similar rates of relapse, non‐Hispanic Black (NHB) and ...
Mallorie B. Heneghan   +14 more
wiley   +1 more source

Formation of topological defects in phase transitions [PDF]

open access: yesPhysical Review D, 1989
It was argued, and fought through numerical work that the results of non-dynamical Monte Carlo computer simulations cannot be applied to describe the formation of topological defects when the correlation length at the Ginzburg temperature is significantly smaller than the horizon size.
openaire   +2 more sources

The Relationship Between Physical Activity and Left Ventricular Remodeling in Childhood Cancer Survivors Treated With Anthracyclines: A Cross‐Sectional Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Anthracycline‐related cardiac remodeling precedes heart failure in childhood cancer survivors. The objectives of this study were to determine the relationships between patient‐specific factors, moderate‐to‐vigorous physical activity (MVPA), and cardiac remodeling.
Hari K. Narayan   +15 more
wiley   +1 more source

Local lattice distortions and chemical short-range order in MoNbTaW

open access: yesMaterials Research Letters
Extended X-ray absorption fine structure (EXAFS) conducted on an equiatomic MoNbTaW bcc medium-entropy alloy that was annealed at 2273 K reveals unexpectedly small 1st and 2nd shell element-specific lattice distortions.
Andrea Fantin   +4 more
doaj   +1 more source

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