On Commutative Formulae in Conformal Complex Finsler Manifolds

设M为n维复流形,■~=T--(1,0)M-{0},f为M上的强拟凸复fInSlEr度量, ■=E--σf为f的共形变换。本文得到定义在■上的各种HErMITIAn张量场分别关于复fInSlEr流形(M,f)和(M,■)的复rund联络求共变微分的各种交换公式。Let M be a complex manifold of dimension n,■ = T--(1,0)M-{0} be the slit holomorphic tangent bundle of M,F be a strongly pseudoconvex complex Finsler metric on M and ■ =e--σF be a conformal transformation of F.In this paper we obtain various kinds of commutative formulae of Hermitián tensor covariantly derivatived with respect to the complex Rund connections associated to (M,F) and(M,■),respectively.supportedbyProgramforNewCenturyExcellentTalentsinFujianProvinceUniversity;theNaturalScienceFoundationofChina(10601040;10971170

苯并三氮唑和磷酸钠对锌的协同缓蚀术

采用静态失重法、动电位极化曲线法、电化学交流阻抗法、扫描电镜和X射线光电子能谱等方法, 研究了在质量分数为17％(0.534mol/L)的四丁基溴化铵(TBAB)溶液中, 苯并三氮唑(BTA)和Na_3PO_4(SP)单独和复配使用对锌腐蚀的抑制作用.结果表明, BTA和Na_3PO_4及其复配物对TBAB溶液中的锌具有缓蚀作用, BTA和Na_3PO_4对锌的缓蚀效率随缓蚀剂质量浓度的增大而提高; 0.1 g/L的BTA和1 g/L的Na_3PO_4的复配物的缓蚀效率高于93％.文中还结合扫描电镜和X射线光电子能谱的结果对复配物的缓蚀机理进行了讨论, 二者的协同效应在于Na_3PO_4在锌的表面形成含有ZnO、Zn(OH)_2和 Zn_3(PO4)_2的保护层, BTA吸附在该保护层的表面或者是镶嵌在保护层的内

Public Emergency and Social Psychological Service System Construction ( Forum)

十九大报告中提出要&quot;加强社会心理服务体系建设&quot;。社会心理服务体系不仅是心理健康服务体系,更是一种社会治理体系。心理学研究成果既可以直接为民众提供心理服务,提高民众幸福感和积极心态,也可以为风险应对、公共突发事件防控提供有力的支持,辅助民众和政府部门做出更为理性的决策。新冠肺炎疫情给社会治理带来了新的挑战,也凸显了民众对心理学知识的需求与认同。随着社会心理服务体系的全面建设、新格局的显现,心理学各种功能将会充分展现于社会发展进程中。社会心理服务体系在后疫情时代将会整合资源发挥其完整功效,深度服务于国家治理体系和国家治理能力的现代化进程,为中国社会的进一步发展贡献更多的专业智慧。</p

酶法辅助提取、纯化米糠蛋白工艺优化Optimization of enzyme assisted extraction and purification of rice bran protein

旨在为米糠副产品的精深加工利用提供指导，利用碱性蛋白酶辅助碱溶酸沉法提取米糠蛋白，并进一步以纤维素酶纯化米糠蛋白，在单因素实验的基础上通过正交实验优化提取、纯化工艺条件。结果表明：米糠蛋白提取的最佳工艺条件为酶解pH 10.5、酶解温度50 ℃、料液比1∶ 10、酶解时间120 min、加酶量2.5%，在此条件下米糠蛋白提取率为75.2%；米糠蛋白纯化的最佳工艺条件为酶解温度50 ℃、酶解pH 5.0、酶解时间60 min、加酶量4%、料液比1∶ 10，在此条件下米糠蛋白纯度为81.6%，提取率为72.6%。采用此方法可以得到提取率和纯度均较高的米糠蛋白。In order to provide guidance for the deep processing and utilization of rice bran by-products, the rice bran protein was extracted using alkaline protease assisted alkaline dissolution and acid precipitation method, and further purified with cellulase. The extraction and purification process conditions were optimized by orthogonal experimental based on single factor experiment. The results showed that the optimal conditions of extraction of rice bran protein were obtained as follows:enzymatic hydrolysis temperature 50 ℃, enzymatic hydrolysis pH 10.5, enzymatic hydrolysis time 120 min, material-liquid ratio 1∶ 10, and dosage of enzyme 2.5%. Under these conditions, the extraction rate of rice bran protein was 75.2%. The optimal conditions of purification of rice bran protein were obtained as follows:enzymatic hydrolysis temperature 50 ℃, enzymatic hydrolysis pH 5.0, enzymatic hydrolysis time 60 min, material-liquid ratio 1∶ 10, and dosage of enzyme 4%. Under these conditions, the purity and extraction rate of rice bran protein were 81.6% and 72.6%, respectively. The rice bran protein with high purity and extraction rate can be obtained by this method

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