磁场与ESA-IA-AMPS共聚物动态协同阻垢研究

利用动态模拟实验装置,研究了环氧琥珀酸(ESA)-衣康酸(IA)-2-丙烯酰胺基-2-甲基丙磺酸(AMPS)共聚物与磁场的动态阻垢性能,采用扫描电镜(SEM)和X-射线衍射仪(XRD)对生成的碳酸钙形貌和晶型的变化进行了表征。结果表明,磁场与ESA-IA-AMPS共聚物之间存在明显的协同阻垢作用,协同作用时的阻垢率达92.21%,比单独使用药剂提高9.3个百分点。空白水样产生的方解石型与文石型碳酸钙质量比约21:4,磁化水中方解石与文石的质量比减少为约1:9,磁场有利于文石产生。单独使用共聚物和磁场与共聚物协同作用时产生的碳酸钙全部为文石,但协同作用下生成的碳酸钙晶粒明显变小,更加分散

磁场与esaiaamps共聚物动态协同阻垢研究

利用动态模拟实验装置,研究了环氧琥珀酸(ESA)-衣康酸(IA)-2-丙烯酰胺基-2-甲基丙磺酸(AMPS)共聚物与磁场的动态阻垢性能,采用扫描电镜(SEM)和X-射线衍射仪(XRD)对生成的碳酸钙形貌和晶型的变化进行了表征。结果表明,磁场与ESA-IA-AMPS共聚物之间存在明显的协同阻垢作用,协同作用时的阻垢率达92.21%,比单独使用药剂提高9.3个百分点。空白水样产生的方解石型与文石型碳酸钙质量比约21:4,磁化水中方解石与文石的质量比减少为约1:9,磁场有利于文石产生。单独使用共聚物和磁场与共聚物协同作用时产生的碳酸钙全部为文石,但协同作用下生成的碳酸钙晶粒明显变小,更加分散

微波辅助下热解麦秆制取生物油的分析

采用微波辅助条件下热解稀硫酸预处理的麦秆制取生物油,产物采用分级萃取进行固液分离,依次分离出了环己烷萃取物、乙酸乙酯萃取物、甲醇萃取物和四氢呋喃萃取物,并用气相色谱/质谱联用仪（GC/MS）分析了各级萃取物。结果表明,本研究制取的生物油中化合物种类较少,有利于生物油中高附加值化学品的分离,其中5,6-二氢吡喃-2-酮在环己烷萃取物中的相对含量为45.0%,糠醛在生物油总产物中的相对含量为45.6%。此外,生物油中酸的相对含量为16.0%,表明该生物油含酸量高而不易于直接作为燃料油使用

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies