目的探讨规范便携式膀胱扫描仪在脊髓损伤患者残余尿液测定的可行性及临床实用价值。方法本研究为病例对照前瞻性研究,将50例残余尿液量(PVR)≥100 m L的部分自主排尿脊髓损伤患者分为2组各25例。其中,研究组规范膀胱扫描仪的使用,当膀...目的探讨规范便携式膀胱扫描仪在脊髓损伤患者残余尿液测定的可行性及临床实用价值。方法本研究为病例对照前瞻性研究,将50例残余尿液量(PVR)≥100 m L的部分自主排尿脊髓损伤患者分为2组各25例。其中,研究组规范膀胱扫描仪的使用,当膀胱内尿液量≥400 m L,行间歇性导尿,临床治愈指标定义PVR量低于100 m L。对照组不对膀胱扫描仪的使用进行规定,比较2组的临床结局。结果 2组比较,平均尿液导出量研究组(427.5±30.5)m L、对照组(352.9±66.9)m L、推迟终止扫描天数研究组(2.6±1.3)d、对照组(9.5±6.2)d、过早终止扫描患者数研究组1例、对照组5例,均有统计学差异(P<0.05);夜间扫描总量和夜间IC总量,研究组低于对照组,但无统计学差异(P>0.05);膀胱过度膨胀、脓尿、有症状尿路感染发生率2组相似。结论规范便携式膀胱扫描仪在脊髓损伤患者残余尿液测定的时机及频率,对间歇导尿时机及对膀胱扫描仪的合理使用的有指导价值。展开更多
Refined carbon(RC) derived from coal fly ash(CFA) as well as powdered activated carbon(PAC) was investigated as adsorbent to remove residual amine collector HAY from aqueous solution.The RC and PAC were characterized ...Refined carbon(RC) derived from coal fly ash(CFA) as well as powdered activated carbon(PAC) was investigated as adsorbent to remove residual amine collector HAY from aqueous solution.The RC and PAC were characterized by scanning electron microscopy(SEM),surface area measurement,Zeta potential measurement and Fourier transform infrared(FTIR) spectroscopy.The effect factors and mechanisms of HAY adsorption onto RC and PAC were studied in detail.The results show that the experimental kinetic data agree well with the pseudo second-order equation,and the Langmuir isotherm model is found to be more appropriate to explicate the experimental equilibrium isotherm results than the Freundlich model.The adsorption capacities of PAC and RC increase with pH.It is found that alkaline condition is conducive to the adsorption of HAY onto PAC and RC and the adsorption efficiency of RC is close to PAC at pH near 11.Zeta potential variation of adsorbents suggests that HAY generates electrostatic adsorption onto RC and PAC.FTIR analysis shows that the adsorption is dominantly of a physical process.The Box-Behnken design optimization conditions of process are RC 1 g/L,pH 11,temperature 302 K and initial HAY concentration 100 mg/L.Under these conditions,the measured adsorption ratio and adsorption capacity are 87.91%and 87.91 mg/g,respectively.Thus,the RC is considered to be a potential adsorbent for the removal of residual amine from aqueous solution.展开更多
The work described in this paper is part of the European Project IBIOLAB, trying to find suitable metalworking fluids based on vegetable oils, such us High Oleic Sunflower Oil （HOSO）. In this paper, the performance ...The work described in this paper is part of the European Project IBIOLAB, trying to find suitable metalworking fluids based on vegetable oils, such us High Oleic Sunflower Oil （HOSO）. In this paper, the performance of the newly developed IBIOLAB water based formulations supplied by SOGELUB and LUBRIX is analyzed and compared with reference Mineral and Synthetic cutting fluids Innovative characterization tests at laboratory scale （3 ball abrasion tests, grinding simulation tests, Tapping torque test） in real grinding machines in combination with advanced characterization techniques （residual stress measurements monitored by RX to predict formation of cracks）, have been used for screening the performance of the emulsions.展开更多
文摘目的探讨规范便携式膀胱扫描仪在脊髓损伤患者残余尿液测定的可行性及临床实用价值。方法本研究为病例对照前瞻性研究,将50例残余尿液量(PVR)≥100 m L的部分自主排尿脊髓损伤患者分为2组各25例。其中,研究组规范膀胱扫描仪的使用,当膀胱内尿液量≥400 m L,行间歇性导尿,临床治愈指标定义PVR量低于100 m L。对照组不对膀胱扫描仪的使用进行规定,比较2组的临床结局。结果 2组比较,平均尿液导出量研究组(427.5±30.5)m L、对照组(352.9±66.9)m L、推迟终止扫描天数研究组(2.6±1.3)d、对照组(9.5±6.2)d、过早终止扫描患者数研究组1例、对照组5例,均有统计学差异(P<0.05);夜间扫描总量和夜间IC总量,研究组低于对照组,但无统计学差异(P>0.05);膀胱过度膨胀、脓尿、有症状尿路感染发生率2组相似。结论规范便携式膀胱扫描仪在脊髓损伤患者残余尿液测定的时机及频率,对间歇导尿时机及对膀胱扫描仪的合理使用的有指导价值。
基金Projects(2013BAB07B03,2013BAC15B01)supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of ChinaProject(51264005)supported by the National Natural Science Foundation of China+1 种基金Project(Qiankehejz[2014]2009)supported by the Key Foundation of Science and Technology of Guizhou Province,ChinaProject([2013]019)supported by“125”Major Special Project of Guizhou Province,China
文摘Refined carbon(RC) derived from coal fly ash(CFA) as well as powdered activated carbon(PAC) was investigated as adsorbent to remove residual amine collector HAY from aqueous solution.The RC and PAC were characterized by scanning electron microscopy(SEM),surface area measurement,Zeta potential measurement and Fourier transform infrared(FTIR) spectroscopy.The effect factors and mechanisms of HAY adsorption onto RC and PAC were studied in detail.The results show that the experimental kinetic data agree well with the pseudo second-order equation,and the Langmuir isotherm model is found to be more appropriate to explicate the experimental equilibrium isotherm results than the Freundlich model.The adsorption capacities of PAC and RC increase with pH.It is found that alkaline condition is conducive to the adsorption of HAY onto PAC and RC and the adsorption efficiency of RC is close to PAC at pH near 11.Zeta potential variation of adsorbents suggests that HAY generates electrostatic adsorption onto RC and PAC.FTIR analysis shows that the adsorption is dominantly of a physical process.The Box-Behnken design optimization conditions of process are RC 1 g/L,pH 11,temperature 302 K and initial HAY concentration 100 mg/L.Under these conditions,the measured adsorption ratio and adsorption capacity are 87.91%and 87.91 mg/g,respectively.Thus,the RC is considered to be a potential adsorbent for the removal of residual amine from aqueous solution.
文摘The work described in this paper is part of the European Project IBIOLAB, trying to find suitable metalworking fluids based on vegetable oils, such us High Oleic Sunflower Oil （HOSO）. In this paper, the performance of the newly developed IBIOLAB water based formulations supplied by SOGELUB and LUBRIX is analyzed and compared with reference Mineral and Synthetic cutting fluids Innovative characterization tests at laboratory scale （3 ball abrasion tests, grinding simulation tests, Tapping torque test） in real grinding machines in combination with advanced characterization techniques （residual stress measurements monitored by RX to predict formation of cracks）, have been used for screening the performance of the emulsions.
