نتایج جستجو برای: silver resistance

تعداد نتایج: 419228  

1995
David R. Smith F. R. Fickett

Pure silver is used extensively in the preparation of high-temperature superconductor wires, tapes, films, and other configurations in which the silver not only shields the superconducting material from the surrounding materials, but also provides a degree of flexibility and strain relief, as well as stabilization and low-resistance electrical contact. Silver is relatively expensive, but at thi...

Mahmoudi, Fariba, Mahmoudi, Farzaneh, Nourizadeh, ٍEzzat, Saie, Elaheh,

Background: Hypoglycaemic effects of Galega officinalis and  silver nanoparticles are established. In the present study, the effects of silver nanoparticles synthetized by Galega officinalis extract were investigated on gene expression of TNF-α, IL-6 and serum levels of liver enzymes in diabetes type 2. Methods: In the present study 20 male Wistar rats in 4 group(n= 5 in each group) weighing 1...

2016
Federica Paladini Cinzia Di Franco Angelica Panico Gaetano Scamarcio Alessandro Sannino Mauro Pollini

Multidrug-resistant organisms are increasingly implicated in acute and chronic wound infections, thus compromising the chance of therapeutic options. The resistance to conventional antibiotics demonstrated by some bacterial strains has encouraged new approaches for the prevention of infections in wounds and burns, among them the use of silver compounds and nanocrystalline silver. Recently, silv...

2011
D. D. L. Chung

This comment is on the paper ‘‘Piezoresistive Effect in SiOC Ceramics for Integrated Pressure Sensors’’, by Riedel et al. The experimental method of testing the piezoresistive behavior is flawed in this paper, as explained below. A similar flaw exists in Zhang et al. which is referenced by the subject paper. Due to this flaw, the piezoresistive results are not reliable. Piezoresistivity refers ...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2006
Max Hain Ashish Dhopatkar Peter Rock

INTRODUCTION An elastomeric module with a polymeric coating has been developed to reduce the friction of sliding mechanics. This in-vitro study examined the stability of the coating and compared the frictional properties of coated modules with those of other common ligation methods. METHODS Six ligation methods (regular uncoated, slick [coated], conventional silver, easy-to-tie, silicone-impr...

2010
Vikram Srinivas Nicholas Williard Preeti Chauhan Michael Osterman

To improve the durability of lead free solder joints under high strain rates, such as drop and shock loading, some area array manufacturers have converted to low silver (Ag) content tin silver copper (SAC) solder spheres instead of the commonly accepted SAC305 solder. While the lower silver content SAC solder joints may address high strain rate shock loads, the durability of these joints under ...

Journal: :Nano letters 2010
Hui Wu Liangbing Hu Michael W Rowell Desheng Kong Judy J Cha James R McDonough Jia Zhu Yuan Yang Michael D McGehee Yi Cui

Transparent electrodes, indespensible in displays and solar cells, are currently dominated by indium tin oxide (ITO) films although the high price of indium, brittleness of films, and high vacuum deposition are limiting their applications. Recently, solution-processed networks of nanostructures such as carbon nanotubes (CNTs), graphene, and silver nanowires have attracted great attention as rep...

2015
Zongtao Li Yong Tang Xinrui Ding Cheng Li Dong Yuan Yifan Lu

This paper proposed a half-experimental model to reconstruct the die-bonding thermal path of highpower light-emitting diodes (HP-LEDs). In this model, the partially insufficient filling of bonding materials and their directional/random distributions (“filling state” for short) have been taken into consideration. Both the silver-paste structure and the Au/Sn-eutectic structure were analyzed and ...

2016
Irina Petrik Natalia Smirnova Liudmyla Romanenko Elena Surmasheva Oksana Tananaiko Mykola Ishchenko

The bactericidal activity, optical spectra, electron-microscopic images and electrical resistance of cotton textile modified with bimetallic silver/copper nanoparticles (Ag/CuNPs) against the series of the microorganisms (Escherichia coli, Staphylococcus aurous, and Pseudomonas aeruginosa) are studied. NPs’ modified fabrics were produced by the developed by us method of soft heat treatment of t...

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