Metallic nanoparticles and carbon nanomaterials have been extensively studied in enhanced oil recovery.Carbon nanotube(CNT)/TiO_(2) nanocomposite is synthesized and investigated in terms of contact angle,interfacial t...Metallic nanoparticles and carbon nanomaterials have been extensively studied in enhanced oil recovery.Carbon nanotube(CNT)/TiO_(2) nanocomposite is synthesized and investigated in terms of contact angle,interfacial tension(IFT),emulsion stability,etc.Its performance in oil displacement in porous media is evaluated through glass micromodel experiment.The synthesized CNT/TiO_(2) is composed of TiO_(2)-based nanocomposites and CNTs as reinforcement phase.TiO_(2) is the dominant crystalline phase,and TiO_(2) nanoparticles cover on the CNTs.CNT/TiO_(2) nanocomposite is able to alter the wetting conditions of the rock from strong oil-wet to hydrophilic conditions and effectively reduce the interfacial tension.CNT/TiO_(2) nanocomposite plays an effective role in stabilizing the Pickering emulsions,and even forms stable emulsions at high temperature as 90℃.For NaCl concentration of up to 2%,a stable emulsion can be formed even after 7 days.It is observed from glass micromodel experiments that the CNT/TiO_(2) nanofluid provides a higher recovery factor denoting its promising performance in enhanced oil recovery.展开更多
Aim:In this study,we would like to determine associations between β2-Adrenergic Receptor(β2AR)polymorphisms at codon 16 and 27 and the response to short acting β2-agonist during asthmatic exacerbation.Methods:This ...Aim:In this study,we would like to determine associations between β2-Adrenergic Receptor(β2AR)polymorphisms at codon 16 and 27 and the response to short acting β2-agonist during asthmatic exacerbation.Methods:This was a prospective cross-sectional study of one year duration.One hundred and thirty two asthmatic patients were recruited.Five mls of venous blood was taken for DNA extraction and then genotyped for the β2AR polymorphisms using multiplex PCR.Patient's clinical responses to β2-agonist nebulization were then compared to their genotype to determine the association.Results:We found that there was no association between β2AR polymorphisms at both codon 16 and 27 with response towards short acting β2-agonist,P=0.315 and P=0.706 respectively.Conclusion:We suggested that β2AR polymorphisms at both codon 16 and 27 had no influent on the response to short acting β2-agonist.展开更多
文摘Metallic nanoparticles and carbon nanomaterials have been extensively studied in enhanced oil recovery.Carbon nanotube(CNT)/TiO_(2) nanocomposite is synthesized and investigated in terms of contact angle,interfacial tension(IFT),emulsion stability,etc.Its performance in oil displacement in porous media is evaluated through glass micromodel experiment.The synthesized CNT/TiO_(2) is composed of TiO_(2)-based nanocomposites and CNTs as reinforcement phase.TiO_(2) is the dominant crystalline phase,and TiO_(2) nanoparticles cover on the CNTs.CNT/TiO_(2) nanocomposite is able to alter the wetting conditions of the rock from strong oil-wet to hydrophilic conditions and effectively reduce the interfacial tension.CNT/TiO_(2) nanocomposite plays an effective role in stabilizing the Pickering emulsions,and even forms stable emulsions at high temperature as 90℃.For NaCl concentration of up to 2%,a stable emulsion can be formed even after 7 days.It is observed from glass micromodel experiments that the CNT/TiO_(2) nanofluid provides a higher recovery factor denoting its promising performance in enhanced oil recovery.
基金This project was carried out under the financial support of USM short-term grant(304/PPSP/6131324)
文摘Aim:In this study,we would like to determine associations between β2-Adrenergic Receptor(β2AR)polymorphisms at codon 16 and 27 and the response to short acting β2-agonist during asthmatic exacerbation.Methods:This was a prospective cross-sectional study of one year duration.One hundred and thirty two asthmatic patients were recruited.Five mls of venous blood was taken for DNA extraction and then genotyped for the β2AR polymorphisms using multiplex PCR.Patient's clinical responses to β2-agonist nebulization were then compared to their genotype to determine the association.Results:We found that there was no association between β2AR polymorphisms at both codon 16 and 27 with response towards short acting β2-agonist,P=0.315 and P=0.706 respectively.Conclusion:We suggested that β2AR polymorphisms at both codon 16 and 27 had no influent on the response to short acting β2-agonist.
