نتایج جستجو برای: sequential extraction

تعداد نتایج: 249513  

Journal: :Environmental science & technology 2012
Fubo Luan William D Burgos

Iron-bearing phyllosilicates strongly influence the redox state and mobility of uranium because of their limited hydraulic conductivity, high specific surface area, and redox reactivity. Standard extraction procedures cannot be accurately applied for the determination of clay-Fe(II/III) and U(IV/VI) in clay mineral-U suspensions such that advanced spectroscopic techniques are required. Instead,...

2017
Tiehang Duan Sargur N. Srihari

A deep network structure is formed with LSTM layer and convolutional layer interweaves with each other. The Layerwise Interweaving Convolutional LSTM(LIC-LSTM) enhanced the feature extraction ability of LSTM stack and is capable for versatile sequential data modeling. Its unique network structure allows it to extract higher level features with sequential information involved. Experiment results...

Journal: :آب و خاک 0
محمدی ثانی محمدی ثانی آستارایی آستارایی فتوت فتوت لکزیان لکزیان طاهری طاهری

abstract with increasing population, mine activities for metal proceeding are also increasing, so environment will be influenced by contaminant especially heavy metals. in situ immobilization of heavy metals using inexpensive amendments is considered as a simple and cost-effective approach for reducing heavy metal contamination. in this research we used sequential extraction for assessing reduc...

A. Pouraria B. Nowruzi H. Nasrollahzadeh Saravi

Sediments from the Southern Caspian Sea, located in Iranian coast were examined on the basis of P-fractionation (five forms of phosphorus) by a sequential extraction scheme. Ninety-six surface sediment samples (for each season with triplicate) were collected from eight sampling transects in 10 and 100 m depths during summer and winter in 2010-2011. The result indicated that the most abundant fo...

Journal: :Environmental geochemistry and health 2015
Mark Cave Joanna Wragg Charles Gowing Amanda Gardner

The study used 276 urban soils and 447 rural soils collected from in and around the UK town of Northampton and focussed on the fractionation of Pb. The Pb fractionation obtained from total element data was compared to the fractionation of Pb in a subset of 10 urban soils obtained using a sequential extraction method. The fractionation of the Pb from the total element data and from the sequentia...

2008
Per Augustsson Thomas Laurell Simon Ekström

ABSTRACT A flow-through chip for sequential exchange and collection of up to five different liquids, surrounding either cells or microbeads has been developed. The presented device was successfully applied for wash and sequential elution of peptides bound to the surface of beads and cells. Collected fractions containg the eluted peptides were subsequently subjected to microfluidic solid phase e...

2015
Windra Swastika Yoshitada Masuda Takashi Ohnishi Hideaki Haneishi

Thoracic time-sequential MRI can be used to assess diaphragm motion pattern without exposing radiation to subject. Clinicians may employ the motion to evaluate the severeness of chronic obstructive pulmonary disease (COPD). This study proposed a novel method of diaphragm motion extraction method on time-sequential thoracic MRI in sagittal plane. Otsu’s threshold and active contour algorithm are...

2016
Evgueni Dodonov Rodrigo Fernandes de Mello

The knowledge of the application behavior allows predicting the application workload during its execution and forecasting distributed data accesses. In order to obtain such data, different strategies can be employed, varying from simple source code analysis, sequential access pattern extraction (Kotz & Ellis, 1993), history-based approaches (Gibbons, 1997; Smith, Foster & Taylor, 1998) and on-l...

Journal: :International Journal of Environmental Science and Technology 2020

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