نتایج جستجو برای: zirconium oxide nano fiber

تعداد نتایج: 354082  

Journal: :Journal of colloid and interface science 2010
Cleocir José Dalmaschio Valmor R Mastelaro Pedro Nascente Jefferson Bettini José Luiz Zotin Elson Longo Edson Roberto Leite

Four aluminas were used as supports for impregnation with a zirconium oxide with the aim to achieve a coating, without phase separation, between support and modifier. The supports were impregnated with different concentrations of zirconium aqueous resin, obtained through the polymeric precursor method. After impregnation the samples were calcined and then characterized by XRD, which led to iden...

ژورنال: علمی شیلات ایران 2020

The aim of this study was to evaluate the performance of plant nano-gels as a new adsorbent and to remove nitrite at low cost. At first, plant nano-gels (nano bagasse, chitosan-functionalized nano-fiber and lignocellulose nano-fiber) were prepared by mechanical and top-down mechanism. Batch system medium was designed to measure the adsorbent optimum. Then isotherm and synthetic were calculated ...

2009
Jae-Hyuk Lee Sang-Ha Son Tran Tan Chang-Ha Lee

−The 2-chlorophenol (2-CP) was oxidized in a continuous anti-corrosive supercritical water system. The variation of decomposition efficiency by the corrosion of zirconium 702 was also studied at the variation of feed concentration and reaction time. According to AES depth profile, the oxygen penetration depth to zirconium was not proportional to the exposure time. It might stem from the formati...

Journal: :journal of dental research, dental clinics, dental prospects 0
ezatollah jalalian associate professor of prosthetic dentistry of azaduniversity roghayeh rostami dentist berivan atashkar dentist

background and aims. one of the major problems of all-ceramic restorations is their probable fracture under occlusal force. the aim of the present in vitro study was to compare the effect of two marginal designs (chamfer and deep chamfer) on the fracture resistance of all-ceramic restorations, cercon. materials and methods. this in vitro study was carried out with single-blind experimental tech...

Journal: :IOP conference series 2021

Abstract Environmental space threats are becoming more critical as they affect the optical, thermal, and electrical properties of reinforced fiber polymeric-based materials in spacecraft. Three different Nano-particles Alumina (Al 2 ,O 3 ), Multiwall Carbon Nanotubes (MWCNT), Reduced Graphene Oxide (RGO) were added to epoxy matrix then by bidirectional carbon plain form fiber/epoxy hand lay-up ...

Journal: :iranian journal of catalysis 2014
mohammad a. nasseri ali allahresani heidar raissi

nano-graphene oxide was synthesized by the oxidation of graphite powders. the structural nature of the nano-graphene oxide was characterized by a variety of techniques including xrd, tem, ft-ir and uv/vis. the functional groups on its basal planes and edges of nano-grahene oxide play important role in catalytic activity. the catalytic activity of nano-graphene oxide was investigated on crossed-...

Journal: :Advances in Materials Science and Engineering 2022

The impact of wear factors on composite materials is examined in this article. Stir casting was used to produce AA7075 alloys with varied nano-zirconium boride weight ratios. dry sliding test done utilizing pin-on-disc equipment. L27 orthogonal array built by Taguchi’s experiments for optimization. We calculated the proportion responses that could be attributed input parameters using SNR and AN...

2015
Vuppalapati Giri Prasanth Tummalapalli Kiran Madhvesh Pathak Giri Prasanth

A new derivative of zirconium (IV), [(acac)2Zr{ONC(Me)th-2}2] have been produced by treating bis(acetylacetonato)diisopropoxy zirconium(IV) with internally functionalised oxime HONC(Me)th-2 (where th = thiophene) in 1:2 stoichiometry, while refluxing in anhydrous toluene. After drying and purification, the product appeared as offwhite crystalline solid. Physico-chemical analysis of this derivat...

Journal: :Chemical communications 2009
Cory A Nelson Jeannine R Szczech Qingge Xu Mathew J Lawrence Song Jin Ying Ge

This work represents the first use of mesoporous zirconium oxide nanomaterials for highly effective and selective enrichment of phosphorylated peptides.

Journal: :energy equipment and systems 0
behdad shadidi department of biosystems engineering, faculty of agriculture, bu-ali sina university, hamedan, iran hossein haji agha alizade department of biosystems engineering, faculty of agriculture, bu-ali sina university, hamedan, iran barat ghobadian department of biosystems engineering, faculty of agriculture, tarbiat modaress university, tehran, iran

in internal combustion engines, only about a third of the total fuel input energy is converted into useful work. if the energy rejected into the cooling system and the exhaust gases could be recovered instead and put into useful work, fuel economy would have been substantially improved. the main aim of this research paper was to evaluate the effects of the hybrid nano-catalyst containing cerium...

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