نتایج جستجو برای: self-cleaning

تعداد نتایج: 543790  

In this study, thermodynamic and economic analysis of a photovoltaic electricity generation system (PVEGS) with and without self-cleaning panels is reported. In the first part, thermodynamic analyses are used to characterize the performance of the system. In the second part, the economic comparison of photovoltaic electricity generation with and without self-cleaning panels is carried out for a...

Journal: :journal of ultrafine grained and nanostructured materials 2014
hajar poortavasoly majid montazer

here, in situ synthesis of nano zinc oxide, along with aminolysis of polyester fabric, has simultaneously been carried out by using triethanol amine (tea) and zinc acetate. the zno nano particles (nps) were formed and stabilized on the fabric surface by amine compound at 130 °c for 1 h. the synthesis of nano zno particles on the polyester fabric were confirmed by x-ray diffraction (xrd) pattern...

Journal: :علوم و تکنولوژی پلیمر 0
مجید منتظر سمانه هاشمی کیا

cotton/polyester knitted fabrics as a major production of textile industry was treated with titanium dioxide nanosized particles. the treated fabric with nanosized tio2 became whiter with a good self-cleaning property. also the discoloration of reactive black 5 dye was studied and reported. the stabilization of tio2 on cotton/polyester knitted fabrics by citric acid (ca) with sodium hypophospha...

Journal: :journal of computer and robotics 0
majid farahmandjou faculty of computer and information technology engineering, qazvin branch, islamic azad university, qazvin, iran

titanium dioxide (tio2)nanoparticles have been frequently employed in the environmental treatment and purification purposes as a cheap and highly efficient photocatalyst. a photocatalyst can facilitate the breakdown and removal of a variety of environmental pollutants at room temperature. tio2 photocatalyst is the best candidatebecause of its strong oxidized ability, non-toxicity and longtherma...

Journal: :international journal of new chemistry 0

a novel zr,ce-tio2/sio2 nanocomposite thin film was successfully prepared with various amounts of zr4+ and ce4+ as codopant ions for self-cleaning applications. a thin film was coated on a tile substrate by dip-coating and porous zr,ce-tio2/sio2 was obtained after heat treatment for 2 hours at 500 °c. the sem images and xrd pattern showed that the optimum amount of doping ions in relation to ti...

Background: Fear of dental care prevents dental cleaning behavior and increases the prevalence of dental caries. This study was conducted to determine the effect of Trans-Theoretical Model constructs and fear of dental care on the dental cleaning behavior of students. <span style="font-family...

Journal: :Journal of Industrial & Engineering Chemistry 1912

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
سارا توسلی حجتی sara tavassoli hojjati dental school, shahed university, tehran-iran.دانشکده دندانپزشکی، دانشگاه شاهد. محمد مهدوی mohammad mahdavi chemistry school, isfahan university, isfahan-iran.دانشکده شیمی، دانشگاه صنعتی اصفهان فائزه حمزه faezeh hamzeh dental school, kerman university of medical sciences, kerman-iran.دانشکده دندانپزشکی، دانشگاه علوم پزشکی کرمان محمدباقر رضوانی mohammad bagher rezvani dental school, shahed university, tehran-iran.دانشکده دندانپزشکی، دانشگاه شاهد. فاطمه احمدیان بابکی fatemeh ahmadian babaki international branch, dental school, shahid beheshti university of medical sciences, tehran-iran.واحد بین الملل دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی. حوریه صادری hooriyeh saderi medical school, shahed university, tehran-iran.دانشکده پزشکی، دانشگاه شاهد. محمدجواد خرازی فرد

objective: surface coating of dental mirrors using nanotechnology has been done to render them self-cleaning properties. nano-scaled titanium dioxide particles (tio2)show antimicrobial properties when exposed to ultra-violet (uv) light. the aim of this study was to evaluate the effect of surface coating of dental mirrors with nano titanium dioxide on their self-cleaning (from dentists’ perspect...

2016
Yun-Yun Quan Li-Zhi Zhang Rong-Hui Qi Rong-Rong Cai

The self-cleaning property is usually connected to superhydrophobic surfaces (SHSs) where the dust particles can be easily removed by the rolling motion of droplets. It seems that superhydrophobicity (its durability is questionable nowadays) is a necessity. However here, it is disclosed that self-cleaning can also be realized on an ordinary surface by droplet impinging. The effects of surface w...

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