نتایج جستجو برای: raw clay

تعداد نتایج: 78203  

2013
A. A. Raheem O. A. Olowu

The use of clay materials for the production of emulsion paints was investigated. Two types of clay: White tinged with Purple and Smooth clay (WSP) and Grey Brown and Coarse clay (GBC), were used for the production of Emulsion Clay Paints (ECP). Conventional Chemical pigmented Paint (CP) was also produced as a control. Atomic Absorption Spectroscopy, (AAS) was used to determine the chemical com...

غلامی, محبوبه, هاشمی تنگستانی, مجید,

Mishan Formation with grey marl and sandy lime composition is one of the most important raw material for cement production. Remote sensing is approved as a low-cost and rapidly developing method in exploration of mineral resources. The sub-pixel mixture tuned matched filtering (MTMF) and the whole-pixel spectral angle mapper (SAM) algorithms were used on 6 and 9 bands of the ASTER data from Mis...

2016
Sebastian Oberst Joseph C. S. Lai Theodore A. Evans

Many termite species use clay to build foraging galleries and mound-nests. In some cases clay is placed within excavations of their wooden food, such as living trees or timber in buildings; however the purpose for this clay is unclear. We tested the hypotheses that termites can identify load bearing wood, and that they use clay to provide mechanical support of the load and thus allow them to ea...

Journal: :Soft matter 2015
Li Zhi Zhao Chun Hui Zhou Jing Wang Dong Shen Tong Wei Hua Yu Hao Wang

Clay mineral-containing nanocomposite hydrogels have been proven to have exceptional composition, properties, and applications, and consequently have attracted a significant amount of research effort over the past few years. The objective of this paper is to summarize and evaluate scientific advances in clay mineral-containing nanocomposite hydrogels in terms of their specific preparation, form...

2012
Ahmet Gürses Mehtap Ejder-Korucu Çetin Doğar

The aim of this study was the preparation of polyethylene oxide (PEO)/clay nanocomposites using organoclay produced via micellar adsorption of cethyltrimethyl ammonium bromide (CTAB) and their characterisation by X-ray diffraction (XRD), and Fourier transform infrared (FT-IR) spectra, and the investigation of certain mechanical properties of the composites. The results show that the basal dista...

1999
C. M

A method of clay mineral sample preparation for electron microprobe analysis has been developed in which a film of clay plus 10-12 wt. % colloidal graphite is deposited on a porous ceramic disc using a specially designed suction device. Correction procedures are used to obtain quantitative elemental analyses representing the average chemical composition of the prepared sample. A statistical tec...

Journal: :Archaeological and Anthropological Sciences 2021

Abstract An ethnoarchaeometric approach has been followed to identify the textural and compositional characteristics of ceramic pastes produced in ancient Iaitas / Ietas , an indigenous site located western Sicily on Monte Iato a few tens kilometres from Palermo. This was primarily motivated by lack discovered Archaic kilns or production sites/workshops inability reference groups. Raw clays wer...

2015
Oscar Cabrera Xavier Franch Jordi Marco

Context modelling is one of the stages conducted during the context life cycle. It has the aim of giving meaning and structure to the collected context’s raw data. Although there are different context models proposed in the literature, we have identified some gaps that are not fully covered, particularly related to the reusability of the models themselves and the lack of consolidated and standa...

2004
CLAUS GERHARDT

We consider a brane N = I × S0, where S0 is an ndimensional space form, not necessarily compact, in a SchwarzschildAdS(n+2) bulk N and prove that, for specific negative pressures on the brane, the brane is an ARW space. By reflecting N and N to N̂ and N̂ , the joint branes N ∪ N̂ can be naturally embedded as a C∞hypersurface in R2 ×S0, if n is odd and if ω = − n−1 2 is chosen, a value that corresp...

ژورنال: علوم آب و خاک 2014

In this study, a completely randomized experiment was designed with five irrigation treatments and three replicates. The irrigation programs were raw wastewater (T1), treated wastewater (T2), a combination of 50% raw wastewater and 50% fresh water (T3), a combination of 50% treated wastewater and 50% fresh water (T4), and fresh water (T5). The experiments were run within a greenhouse. The lysim...

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