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A novel polymer‐based genosensor for the detection and quantification of Streptococcus pneumoniae in genomic DNA sample

08.09.2017 | Fábio P. Ferreira, Ana C. Honorato‐Castro, Jussara Vieira da Silva, Sara‐Cuadros Orellana, Guilherme C. Oliveira, Jo ..., Polymer Engineering and Science, 2017

The Streptococcus pneumoniae detection plays an important role in the diagnosis and monitoring of pneumococcal diseases. A genosensor based on graphite electrodes modified with polymer was developed for such detection. First, the poly(4‐aminophenol) film was electrochemically deposited on a ...

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Isothermal crystallization kinetics of polypropylene in melt‐mixed composites of polypropylene and multi‐walled carbon nanotubes

07.09.2017 | Joyita Banerjee, Suchitra Parija, Ajay S. Panwar, Kingsuk Mukhopadhyay, A. K. Saxena, Arup R. Bhattacharyya, Polymer Engineering and Science, 2017

The isothermal crystallization behaviour of the polypropylene (PP) phase in PP/multi‐walled carbon nanotubes (MWCNTs) composites has been investigated via differential scanning calorimetric analysis, which showed the influence of the varying dispersion level of MWCNTs in the respective PP ...

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Bubble Dynamic Behaviours at Various Capillary Orifices in a Bioreactor with Methane Oxidizing Bacteria Suspension

07.09.2017 | Qin‐Yuan Tang, Cheng‐Long Guo, Hong‐Shan Pei, Fei‐Qiang Guo, The Canadian Journal of Chemical Engineering, 2017

Abstract Bubble dynamic behaviour has a significant influence on methane bioconversion because a gas mixture including methane and oxygen is usually supplied into a bioreactor with a methane oxidizing bacteria suspension via capillary orifice, forming bubbles. In the work, bubble dynamic ...

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Optimization of reactive extraction of C1–C4 aliphatic monocarboxylic acids from aqueous solutions: modeling solvation effect with extended‐LSER, A‐UNIFAC and SPR

07.09.2017 | Aynur Senol, Süheyla Çehreli, Nur Özparlak, Alfonsina E. Andreatta, Asia-Pacific Journal of Chemical Engineering, 2017

Abstract This paper studies reactive extraction of formic (FA), acetic (AA), propionic (PA) and butyric (BA) acids from aqueous solutions by tri‐n‐butyl amine/diluent, with particular focus on proper optimization and modeling of extraction equilibria. The uptake capacities of amine/diluent and ...

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Simulation and Control of Membrane Reactors for Catalytic Reduction of Dissolved Oxygen from Water

06.09.2017 | Mohsen Karegar Ghavibazoo, Ayub Golmakani, Saeid Hosseinipoor, Mohammad‐Reza Rokhforouz, The Canadian Journal of Chemical Engineering, 2017

Abstract Removal of dissolved oxygen (DO) from water has gained much attention in recent decades to prevent different problems such as corrosion, bio‐fouling, and performance degradation in many industries. The traditional physical and chemical methods for DO removal have found wide ...

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Influence of the Swirling Jet on Pulverized Coal Gasification Performance based on CFD Simulation

06.09.2017 | Yue Zhang, Lei Sang, Ping Li, Zhuangmei Li, Jianjiang Fan, Xiaowen Ren, The Canadian Journal of Chemical Engineering, 2017

ABSTRACT In order to study the influence of the swirling jet of the gasification agent on coal gasification performance, the gasification process of Ningdong pulverized coal inside a GSP gasifier (2000 t/d) was simulated under hot conditions, and the results were compared with actual ...

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La‐modified vermiculites for efficient adsorption of Congo red

06.09.2017 | Wei‐Ya Huang, Changlin Yu, Dan Li, Asia-Pacific Journal of Chemical Engineering, 2017

Abstract In this study, we utilized lanthanum to modify vermiculite (RV) targeting at high dye removal and superior reusability. La‐modified RV materials were synthesized; followed by detailed characterizations and adsorption studies. Compared with the BET surface area (SBET) of RV ...

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Thermal oxidation stability of poly‐α‐olefin lubricating oil

05.09.2017 | Nan Wu, Zhi‐Min Zong, Yi‐Wei Fei, Jun Ma, Feng Guo, Asia-Pacific Journal of Chemical Engineering, 2017

Abstract By simulating high‐temperature and high‐pressure operating conditions of an aviation engine using an autoclave, we studied the physicochemical properties and tribological behaviors of poly‐α‐olefin base oil samples during thermal oxidation at different temperatures. According to ...

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Effect of Sorbent Reactivity on Flue Gas Desulphurization in Fluidized‐Bed Boilers under Air Firing Mode

02.09.2017 | Arkadiusz Szymanek, Margarita Obras‐Loscertales, Anna Pajdak, The Canadian Journal of Chemical Engineering, 2017

ABSTRACT The article presents research into the reactivity and SO2 sorption abilities of calcareous sorbents, which vary in quality. Two sorbents were used: limestone and travertine, with grain sizes between 0.125 and 0.250 mm. The sorbent reactivity tests were performed on a laboratory test ...

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The chain scission extent of polystyrene in different shear flow fields

01.09.2017 | Zhanchun Chen, Shuai Zhang, Feng Li, Fei Wu, Tao Yao, Polymer Engineering and Science, 2017

A mechanochemical reactor providing strong shear‐force has been developed in order to graft the polar groups onto the polymers. The extent of polymers' chain scission is a key factor in grafting process. In order to evaluate the scission extent, the shearing experiments were carried out for ...

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