نتایج جستجو برای: ratio of clay

تعداد نتایج: 21180933  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...

2013
Rishi Raj Aditya Kaushik Ravinder Kundu

In mechanical terms, nanocomposites differ from conventional composite materials due to the exceptionally high surface to volume ratio of the reinforcing phase and/or its exceptionally high aspect ratio. The reinforcing material can be made up of particles (e.g. minerals), sheets (e.g. exfoliated clay stacks) or fibres (e.g. carbon nanotubes or electrospun fibres). The area of the interface bet...

Journal: :Geofluids 2021

To study the influence of consolidation stress ratio and history on 1-D permeability saturated clay, one-dimensional tests were carried out with GDS triaxial device. The results indicated that coefficient void normally overconsolidated clay decreased increase under different ratios but same history. And amount final sample’s compression increased ratio. Under condition history, was smaller than...

حمیدرضا کریم زاده, , مصطفی کریمیان اقبال, , احمد جلالیان, , هادی مجدی, ,

Stabilizng sand dunes has been one of the main challenges in the arid regions. So far, different kinds of mulches have been used extensively for sand dune stabilization. This study was carried out to determine the optimum composition, concentration and thickness of clay mulch for sand dune stabilization. For this purpose two soil samples from clay flats of a playa with different amount of salin...

ژورنال: علوم آب و خاک 2006
حمیدرضا کریم زاده, , مصطفی کریمیان اقبال, , احمد جلالیان, , هادی مجدی, ,

Stabilizng sand dunes has been one of the main challenges in the arid regions. So far, different kinds of mulches have been used extensively for sand dune stabilization. This study was carried out to determine the optimum composition, concentration and thickness of clay mulch for sand dune stabilization. For this purpose two soil samples from clay flats of a playa with different amount of salin...

2016
Dongwei Hou Guoping Zhang Rohit Raj Pant Zhongxin Wei Shuilong Shen

Clay-based nanostructured multilayers, such as clay-polymer multilayers and clay-oxide multilayers, have attracted growing attention owing to their remarkable mechanical properties and promising application in various fields. In this paper, synthesis of a new kind of nanostructured clay-oxide multilayers by layer-by-layer self-assembly was explored. Nano-mechanical characterization of 18 clay-b...

2006
Y. Lei C. M. Clemons F. Yao Y. Xu K. Lian Gifford Pinchot WI

Composites based on high density polyethylene (HDPE), pine flour, and organic clay were made by melt compounding and then injection molding. The influence of clay on crystallization behavior, mechanical properties, water absorption, and thermal stability of HDPE/pine composites were investigated. The HDPE/pine composites containing exfoliated clay were made by a two-step melt compounding proced...

2004
Robin H. A. Ras József Németh Cliff T. Johnston Imre Dékány Robert A. Schoonheydt

To control the molecular organization of octadecyl rhodamine B (RhB18), hybrid Langmuir–Blodgett monolayers containing clay minerals were prepared. The orientation and conformation of the RhB18 molecule were analyzed by polarized attenuated total reflection Fourier transform infrared (ATR–FTIR) spectroscopy and fluorescence spectroscopy. Monomers and dimers of RhB18 were observed by UV-Vis abso...

2013
Paul Djomgoue Daniel Njopwouo

The present paper should be considered as a review of the application of Fourier Transform Infra-Red for surface clay characterization. The application of surface clay materials for water treatment, oil adsorption, excipients or as active in drugs has largely increased these recent years. The surface clay material presents hydroxyl groups, which can link very easily water molecules. These hydro...

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