نتایج جستجو برای: three spray levels zinc oxide

تعداد نتایج: 2286034  

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In order to investigate the effect of salinity tension and zinc nano oxide on physiological parameters of Rapeseed and Camelina, a factorial experiment was conducted based on a completely randomized design with three replications in the greenhouse conditions of Department of Biology of Urmia University in 2012-13. The factor of zinc nano oxide was investigated at three levels of zero,  25 and 1...

2017
Hala F. Mohammed Mohammed M. Ibrahim Abd El-Fattah H. Abd El-Fattah Thanaa I. Shalaby

INTRODUCTION: Antibacterial properties of nanoparticles have recently come into the spotlight in endodontic therapy. OBJECTIVES: Evaluation of the antimicrobial efficacy of zinc oxide based sealer incorporated with silver and zinc oxide nanoparticles compared with simple zinc oxide sealer against Enterococcus faecalis. MATERIALS AND METHODS: The study was conducted on 60 human extracted mandibu...

Journal: :journal of medical bacteriology 0
amirhossein mirhashemi dental research center, dentistry research institute , department of orthodontics, tehran university of medical sciences, tehran, ir iran. abbas bahador department of microbiology, school of medicine, tehran university of medical sciences, tehran, ir iran. mohammadzaman kassaee department of chemistry, tarbiat modarres university, tehran, ir iran. ghazaleh daryakenari department of esthetic and restorative dentistry, dental school, babol university of medical sciences, babol, ir iran. mohammadsadegh ahmad-akhoundi dental research center, dentistry research institute , department of orthodontics, tehran university of medical sciences, tehran, ir iran. ahmad sodagar dental research center, dentistry research institute , department of orthodontics, tehran university of medical sciences, tehran, ir iran.

background : incidence of  white  spots due  to  demineralization of  enamel  and  gingival problems  is  an  unacceptable  result  of  orthodontic  treatment.  plaque  accumulation  and bacterial biofilm growth are responsible for these phenomena. the resin-based dental composites used as bonding agents in orthodontics play a major role in mentioned problems. as recent researches assert the an...

Journal: :IOP Conference Series: Materials Science and Engineering 2017

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Xinge Yu Jeremy Smith Nanjia Zhou Li Zeng Peijun Guo Yu Xia Ana Alvarez Stefano Aghion Hui Lin Junsheng Yu Robert P H Chang Michael J Bedzyk Rafael Ferragut Tobin J Marks Antonio Facchetti

Metal-oxide (MO) semiconductors have emerged as enabling materials for next generation thin-film electronics owing to their high carrier mobilities, even in the amorphous state, large-area uniformity, low cost, and optical transparency, which are applicable to flat-panel displays, flexible circuitry, and photovoltaic cells. Impressive progress in solution-processed MO electronics has been achie...

2012
Ting Mei Yong Hu

Quantum dot (QD), also called artificial atom, is a semiconductor nanocrystal with the size on the order of a few nanometers. By modifying its composition, size and shape, its density of electronic states can be engineered and thus many physical properties can be widely and easily adjusted. Strong quantum confinement of electronic carriers at nanometer scale makes band-gap and luminescence ener...

Sara Madeh Khaksar Shahram Lack,

BACKGROUND: Suitable and useful usage of different kind of fertilizers is the main way for reformation and potential of soil fertility and increasing of crops yield. Microelements are the critical elements for plants; also play the important role in crop productivity where it is used in low rate. Optimum plant nutrition and maximum yield is achieved when nutrient elements are a...

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