نتایج جستجو برای: barium fluoride

تعداد نتایج: 28441  

Journal: :Advanced Functional Materials 2021

In article number 2010962, Yuanjie Su, Guangzhong Xie, Jun Chen, and co-workers disperse polydopamine into barium titanate/polyvinylidene fluoride nanofibers to enhance the interfacial adhesion, mechanical strength, piezoelectric properties, creatively mimicking muscle fibers. The enhancement was theoretically verified via phase-field simulation. A nonwoven textile further fabricated for wearab...

2018
Jan Demesko Janusz Markowski Mirosława Słaba Janusz Hejduk Piotr Minias

Game animals, such as the roe deer (Capreolus capreolus), have long been used as bioindicators of environmental contamination. Most ecotoxicological research on ungulates has focused on trace element content in soft tissues and antlers. Also, only fragmentary information exists about whether and how trace element concentrations vary with the age of wild-living animals and whether these age-rela...

1994
H. Newman

This report presents results of optical bleaching for barium fluoride crystals to be used to construct a precision electromagnetic calorimeter at future hadron colliders. A practical technique for in situ bleaching by illuminating crystals with light from a UV lamp through an optical fiber is established. The light attenuation length of current production BaF, crystals can be set to around 200 ...

Journal: :IEEE Transactions on Nuclear Science 2022

Because of its fast scintillation peaked at 220 nm with a decay time less than 0.6 ns, barium fluoride crystals have attracted broad interest in the community pursuing ultrafast detectors for future high energy physics (HEP) experiments and GHz hard X-ray imaging free-electron laser (XFEL) facilities. A crucial issue application is spectral response photodetectors down to vacuum ultraviolet (VU...

2007
V. M. CARR A. V. CHADWICK

We have measured the a. c. conductivity of pure BaFz single crystals up to 1 336 K. At the higher temperatures we observed polarisation effects possibly due to a reaction of the crystal with the atmosphere in the cell. The defect energies derived from the low temperature region agree well with those obtained by Barsis and Taylor [27, 281. The effect of the high temperature phase transition on t...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1390

objective: the objective of this study was to investigate the invitro fluoride release of four new self-adhesive resin cements; set (sdi, australia), breeze (pentron, usa), embrace wetbond (pulpdent, usa), g-cem (gc, japan) and to assess the bonding performance of these self-adhesive resin cements for bonding of orthodontic brackets. materials and methods: for fluoride release experiment, six ...

Journal: :International journal of occupational and environmental health 2014
Phyllis J Mullenix

BACKGROUND Fluoride additives contain metal contaminants that must be diluted to meet drinking water regulations. However, each raw additive batch supplied to water facilities does not come labeled with concentrations per contaminant. This omission distorts exposure profiles and the risks associated with accidents and routine use. OBJECTIVES This study provides an independent determination of...

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