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Determination of metal ion concentrations by SERS using 2,2'-bipyridyl complexes

26-Aug-2015 | Julie Ann Docherty; Samuel Mabbott; Ewen Smith; John Reglinski; Karen Faulds; Christine Davidson; Duncan Graham, Analyst, 2015

Surface enhanced Raman scattering (SERS) can generate characteristic spectral “fingerprints” from metal complexes, thus providing the potential for the development of methods of analysis for the identification and quantitation of a range of metal ions in solution. The advantages include ...

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Energies, Vol. 8, Pages 8873-8886: Thermal System Analysis and Optimization of Large-Scale Compressed Air Energy Storage (CAES)

21-Aug-2015 | Fu, Zhongguang ; Lu, Ke ; Zhu, Yiming, Energies, 2015

As an important solution to issues regarding peak load and renewable energy resources on grids, large-scale compressed air energy storage (CAES) power generation technology has recently become a popular research topic in the area of large-scale industrial energy storage. At present, the ...

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Sensors, Vol. 15, Pages 20873-20893: A Context-Aware EEG Headset System for Early Detection of Driver Drowsiness

21-Aug-2015 | Li, Gang ; Chung, Wan-Young, Sensors, 2015

Driver drowsiness is a major cause of mortality in traffic accidents worldwide. Electroencephalographic (EEG) signal, which reflects the brain activities, is more directly related to drowsiness. Thus, many Brain-Machine-Interface (BMI) systems have been proposed to detect driver drowsiness. ...

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Image signal‐to‐noise ratio estimation using adaptive slope nearest‐neighbourhood model

20-Aug-2015 | K. S. SIM, V. TEH, Journal of Microscopy, 2015

Summary A new technique based on nearest neighbourhood method is proposed. In this paper, considering the noise as Gaussian additive white noise, new technique single‐image‐based estimator is proposed. The performance of this new technique such as adaptive slope nearest neighbourhood is ...

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Adsorptive removal of dyes from synthetic and real textile wastewater using magnetic iron oxide nanoparticles: Thermodynamic and mechanistic insights

20-Aug-2015 | Nashaat N. Nassar, Nedal N. Marei, Gerardo Vitale, Laith A. Arar, The Canadian Journal of Chemical Engineering, 2015

Abstract Magnetic iron‐oxide nanoparticles exhibit high efficiency in wastewater treatment for many important reasons, including that they can remove contaminants from wastewater rapidly owing to their high external surface area/unit mass and interstice reactivity. Additionally, this type of ...

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Vacuum-driven power-free microfluidics utilizing the gas solubility or permeability of polydimethylsiloxane (PDMS)

19-Aug-2015 | Linfeng Xu; Hun Lee; Deekshitha Jetta; Kwang W Oh, Lab on a Chip, 2015

Suitable pumping methods for flow control remain a major technical hurdle in the path of biomedical microfluidic systems for point-of-care (POC) diagnostics. Vacuum-driven power-free micropumping method provides a promising solution to such a challenge. In this review, we focus on vacuum-driven ...

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An efficient non‐Newtonian fluid‐flow simulator for variable aperture fractures

19-Aug-2015 | Joseph P. Morris, Gocha G. Chochua, Andrey V. Bogdan, The Canadian Journal of Chemical Engineering, 2015

Abstract Many natural and industrial applications involve non‐Newtonian fluids with high effective viscosity ratios flowing between surfaces with spatial variations in aperture. In particular, hydraulic fracturing operations often require pumping sequences of non‐Newtonian fluids with ...

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Determination of ion pairing on capping structures of gold nanoparticles by phase extraction

19-Aug-2015 | Han-Wen Cheng; Mark J. Schadt; Kaylie Young; Jin Luo; Chuan-Jian Zhong, Analyst, 2015

As nanoparticles with different capping structures in solution phases have found widespread applications of wide interest, understanding how the capping structure change influences their presence in phases or solutions is important for gaining full control over both the intended nanoactivity and ...

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Assessment of the Role Played by N‐propanol Found in Postmortem Blood in the Discrimination Between Antemortem Consumption and Postmortem Formation of Ethanol Using Rats

18-Aug-2015 | Hao Liang, Shenyi Kuang, Lin Guo, Tianfang Yu, Yulan Rao, Journal of Forensic Sciences, 2015

Abstract This study disproves the reliability of n‐propanol as a biomarker to establish whether the ethanol found in postmortem blood is derived from antemortem ingestion or postmortem putrefactive processes. Two groups of rats were given ethanol or normal saline solution, respectively, and ...

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Preparation and characterization of nanostructured thin films of Au and Ag nanoparticles synthesized by ascorbic acid on modified glass surface

18-Aug-2015 | Saadat Rastegarzadeh, Mohammad Azarkish, Shirin Abdali, Surface and Interface Analysis, 2015

Immobilization of Ag and Au nanoparticles (NPs) synthesized by ascorbic acid on chemically modified glass surface has been studied. 3‐[2‐(2‐Aminoethylamino)ethylamino]propyl‐trimethoxysilane (AMPTS), N‐(2‐aminoethyl)‐3‐aminopropyltrimethoxysilan, and 3‐trimethoxysilyl‐1‐propanethiol (MSPT) were ...

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