超级电容电池容量自动检测系统的研究

超级电容电池又叫双电层电容器,是一种新型储能装置,目前国内外对于超级电容电池容量的检测系统自动化程度不高,多数工作由人工控制完成。本文总结了相关蓄电池的自动检测系统,在此基础上提出了适合于超级电容电池的自动检测装置,并通过此装置检测出超级电容电池的常温容量,低温容量以及高倍率放电能力,为今后超级电容电池的自动化检测提供一套可行方案。     

基于二阶广义全变差的多帧图像超分辨率重建

图像超分辨率重建是图像处理领域的重要问题.本文将二阶广义全变差用于基于正则化的多帧图像超分辨率重建问题,构建了基于二阶广义全变差正则项的图像超分辨率模型.为了更好地保持重建图像的边缘和细节,采用图像空域自适应正则化参数,并针对该重建模型的非光滑性,给出了基于半二次正则化和交替方向法的求解算法.实验结果表明该模型和数值算法能够较好地提高图像的分辨率,同时可以较好地保持图像的细节信息.     

Generation of Phosphide Anions from Phosphorus Red and Phosphine in Strongly Basic Systems to Form Organylphosphines and -Oxides

Abstract

Generation of phosphide anions from phosphorus red or phosphine under the action of strong bases followed by their reactions with organyl halides, electrophilic alkenes and alkynes proves to be the most straightforward and well-controlled route to mono-, di- or triorganylphosphines or phosphine oxides of diverse structure.     

利用高吸水树脂优化3个中学化学实验*

尝试利用高吸水树脂对“酸碱中和反应、碳酸钠和碳酸氢钠分别与稀盐酸反应、探究分子运动现象”这3个实验进行创新改进,充分利用了高吸水树脂特殊的结构作用,使3个实验的现象更加显著。改进实验操作简便,高效简洁,值得推广到一线化学课堂的演示实验或学生分组实验。     

Special tensors in the deformation theory of quadratic algebras for the classical Lie algebras

Using deformation theory, Braverman and Joseph constructed certain primitive ideals in the enveloping algebras of the simple Lie algebras. Except in the case sl(2,C)$\mathfrak{s}\mathfrak{l}(2,\mathbb{C})$, there is a special value of the deformation parameter giving an ideal of infinite codimension. For the classical Lie algebras, the uniqueness of the special value is equivalent to the existence of tensors with very particular properties. The existence of these tensors was concluded abstractly by Braverman and Joseph but here we present explicit formulae. This allows a rather direct computation of the special value of the deformation parameter.     

超重现毛细管电泳的理论与例证

毛细管电泳经常遭受结果不稳定、不重现的困扰。该文从理论上推导了一些新模式并以例证说明,这些模式能在一定条件下抵抗条件变化,获得超重现电泳谱图。它们是加权淌度谱、迁移电量谱、电荷密度谱、摩尔电荷密度谱、扩散系数谱、液相质量谱,以及它们各自的比例谱等,其中前4种为实时测量模式,其余的为实验后模式。这些模式需要发展新的仪器或算法,但都有发展潜力,值得深入研究。     

Unraveling Dual Aggregation‐Induced Emission Behavior in Steric‐Hindrance Photochromic System for Super Resolution Imaging

Unprecedented dual aggregation‐induced emission (AIE) behavior based on a steric‐hindrance photochromic system is presented, with incorporation one or two bulky aryl groups, resulting in different flexibleness. The dual AIE behavior of open and closed isomers can be explained by restriction of intramolecular rotation (RIR), restriction of intramolecular vibration (RIV), and intermolecular stacking. The large bulky benzothiophene causes restricted rotation, enhancing the emission of open form in solution and weak π–π molecular packing, thereby efficiently enhancing the luminescence performance in the solid state. With incorporation of two large bulky benzothiophene groups, BBTE possesses the most outstanding AIE activity, undergoing highly efficient and reversible off‐to‐on fluorescence in film upon alternating UV and visible light irradiation along with excellent fatigue resistance. The off‐to‐on fluorescent photoswitch is successfully established in super resolution imaging.     

特高含水期油气水混输管道压降计算方法研究

在油田开发后期,产出液的含水率已超过80％,集输管道内介质的流动属于特高含水油气水混合流动。准确的油气水混输管道压降计算,对油田集输系统运行管理有着重要的意义。利用井口到计量间的现有设施,对特高含水期油气水管道的液量、气量、含水率、温度及压降进行了测试。介绍了Baker冲击流压降计算模型,用实测数据对Baker模型进行了修正。计算与测试数据对比分析结果表明,所给的修正压降模型适合特高含水采油期油气水三相冲击流水平管道压降计算。     

壳聚糖接枝丙烯酸制备高强吸水材料

甲壳素（Chitin）年产量约为10-100亿吨,是仅次于纤维素（约为100亿吨）的第二大天然资源。开发利用这一自然资源宝库,具有十分重要的意义。甲壳素的脱乙酰化产物称为壳聚糖（Chitosan）。本工作对壳聚糖进行丙烯酸接枝改性,制得对蒸馏水吸水率大于800倍、吸自来水大于500倍,吸0．9％NaCl溶液吸液率130倍的吸液保液材料,该材料具有生物降解性,无环境污染,且制备工艺简单,成本低。     

现代酸碱理论在有机化学中的应用

简要介绍现代酸碱理论的建立及其基本概念。现代酸碱理论包括了Brφnsted-Lowry酸碱理论、Lewis酸碱理论、HSAB理论和超酸理论。举例介绍了与物理有机化学、有机合成、有机催化等领域相关的现代酸碱理论的广泛应用。