Results 41 to 50 of about 2,019,206 (282)

Study of the structural, ferroelectric, dielectric, and pyroelectric properties of the K0.5Na0.5NbO3 system doped with Li+, La3+, and Ti4+

open access: yesJournal of Advanced Ceramics, 2020
Pure K0.5Na0.5NbO3 (KNN) and KNN doped with Li+ (6% mole), La3+(1.66%, 5%, 6% mole), and Ti4+ (10% mole) were prepared by mixture of oxides using high-energy milling and conventional solid-state reaction.
C. Montero-Tavera   +3 more
doaj   +1 more source

Microstructure and Intrinsic Strain of Nanocrystals in Ferroelectric (Na,K)NbO3 Nanofibers

open access: yesNanomaterials, 2022
Densely woven highly crystallized biocompatible sodium–potassium niobate Na0.35K0.65NbO3 fibers with an average diameter of 100–200 nm and several hundreds of microns in length were sintered by the sol–gel calcination-assisted electrospinning technique ...
Alexander M. Grishin
doaj   +1 more source

Evolving morphotropic phase boundary in lead-free (Bi1/2Na1/2)TiO3–BaTiO3 piezoceramics [PDF]

open access: yes, 2011
The correlation between structure and electrical properties of lead-free (1-x)(Bi(1/2)Na(1/2))TiO(3)-xBaTiO(3) (BNT-100xBT) polycrystalline piezoceramics was investigated systematically by in situ synchrotron diffraction technique, combined with ...
Damjanovic, Dragan   +7 more
core   +4 more sources

The Ontology based FMEA of Lead Free Soldering Process [PDF]

open access: yes, 2009
Paper is directed to improvement of a FMEA (Failure Mode and Effects Analysis) procedure in the area of reflow lead free soldering by the use of an ontology paradigm. Some ontology editor tools suitable for our intention are presented.
Mach, Pavel, Molhanec, Martin
core   +1 more source

Surdat: Database of physical properties of lead-free solders [PDF]

open access: yes, 2007
The results of investigations, carried out since 1998, of surface tension by the maximum bubble pressure method, and of density by the dilatometric method for pure metals, binary and multicomponent systems have been used to create an electronic database ...
Debski A.   +3 more
core   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

Lead-Free Solders for Superconducting Applications [PDF]

open access: yesIEEE Transactions on Applied Superconductivity, 2016
In this paper, the low-temperature properties of some commercial Pb-free solders developed for electronics and aerospace applications were investigated for possible use as superconducting solder materials. Their properties are also compared with in-house Sn 35In 50Bi 15 solders being developed to replace the widely used Pb-Bi alloys. Of these materials,
Aksoy, C.   +4 more
openaire   +3 more sources

Pazopanib Combined With Vincristine and Irinotecan in Relapsed Wilms Tumor: Encouraging Outcomes in a Heavily Pretreated Pediatric Cohort

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background While Wilms tumor (WT) typically has a favorable prognosis, relapsed cases—especially those with high‐risk histology—remain therapeutically challenging after intensive frontline therapy. The combination of vincristine and irinotecan has demonstrated activity in pediatric solid tumors, and pazopanib, a multi‐targeted tyrosine kinase ...
Maria Debora De Pasquale   +6 more
wiley   +1 more source

Psychosocial Outcomes in Patients With Endocrine Tumor Syndromes: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction The combination of disease manifestations, the familial burden, and varying penetrance of endocrine tumor syndromes (ETSs) is unique. This review aimed to portray and summarize available data on psychosocial outcomes in patients with ETSs and explore gaps and opportunities for future research and care.
Daniël Zwerus   +6 more
wiley   +1 more source

The Impact of Grain Growth on the Functional Properties in Room-Temperature Powder Aerosol Deposited Free-Standing (Ba,Ca)(Zr,Ti)O3 Thick Films

open access: yesCrystals
This study investigates the development of freestanding thick films (FSFs) of lead-free (Ba,Ca)(Zr,Ti)O3 and the role of grain growth on the electromechanical response.
Juliana G. Maier   +6 more
doaj   +1 more source

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