活性钙预防运动员训练比赛中强直性肌肉抽搐的研究──附8例临床报道

运动员在训练比赛中常发生强直性肌肉抽搐,这种现象可能与血浆中［Ｃａ２＋］下降有关。针对其采用活性钙混悬液口服法快速补充［Ｃａ２＋］,预防了大运动量训练和比赛时肌肉抽搐的发生。     

镁合金环保型阳极氧化电解液组成优化的研究

为了提高镁合金耐腐蚀性能,采用正交试验对镁合金环保型阳极氧化电解液进行优化,确定了最佳的电解液组成,并通过全浸试验和动电位极化曲线等检测手段研究膜层的耐腐蚀性能.结果表明:镁合金经组成为50g/L氢氧化钠、100 g/L硼酸钠、20 g/L硅酸钠的电解液氧化后,表面生成的氧化膜光滑、平整、致密性好,腐蚀电位提高75 mV左右,耐腐蚀性能提高45%左右,对镁合金基体有良好的防护性.     

铝合金等离子体电解着色工艺的研究

通过对不同电解液成分和浓度的选取，制备氧化和着色兼容的微弧氧化膜。不同种类的电解液所得到的微弧氧化膜层颜色也不同，同种体系中的主要成分浓度的不同是影响生成微弧氧化膜速率和颜色的原因之一。     

电化学中离子迁移数定义的理解与计算公式的导出

采用几种不同的方式来表述离子迁移数的定义 ,然后导出相应的数学公式并找出它们之间的联系与等同性     

Metal-organic frameworks enable broad strategies for lithium-sulfur batteries

The lithium-sulfur (Li-S) battery is considered to be a potential next-generation power battery system, however, it is urgent that suitable materials are found in order to solve a series of challenges, such as the shuttle effect and lithium dendrite growth. As a multifunctional porous material, metal-organic frameworks (MOFs) can be used in different parts of Li-S batteries. In recent years, the application of MOFs in Li-S batteries has been developed rapidly. This review summarizes the milestone works and recent advances of MOFs in various aspects of Li-S batteries, including cathode, separator and electrolyte. The factors affecting the performance of MOFs and the working mechanisms of MOFs in these different parts are also discussed in detail. Finally, the opportunities and challenges for the application of MOFs in Li-S batteries are proposed. We also put forward feasible solutions to related problems. This review will provide better guidance for the rational design of novel MOF-based materials for Li-S batteries.     

电解质分析仪校准方法的探讨

介绍分析电解质分析仪的工作原理、计量特性、校准标物及校准方法,为临床监护及法定计量机构开展电解质分析仪的检测工作提供了一定的理论依据。     

Cyclic-anion salt for high-voltage stable potassium-metal batteries

Electrolyte anions are critical for achieving high-voltage stable potassium-metal batteries (PMBs). However, the common anions cannot simultaneously prevent the formation of ‘dead K’ and the corrosion of Al current collector, resulting in poor cycling stability. Here, we demonstrate cyclic anion of hexafluoropropane-1,3-disulfonimide-based electrolytes that can mitigate the ‘dead K’ and remarkably enhance the high-voltage stability of PMBs. Particularly, even using low salt concentration (0.8 M) and additive-free carbonate-based electrolytes, the PMBs with a high-voltage polyanion cathode (4.4 V) also exhibit excellent cycling stability of 200 cycles with a good capacity retention of 83%. This noticeable electrochemical performance is due to the highly efficient passivation ability of the cyclic anions on both anode and cathode surfaces. This cyclic-anion-based electrolyte design strategy is also suitable for lithium and sodium-metal battery technologies.     

锂离子电池无水电解质锂盐的研究进展

综述了近年来在锂离子电池无水电解质研究与探索方面的成果,介绍了锂离子电池无水电解质锂盐的电化学性能与结构的关系,并介绍了无水电解质锂盐的量子化学计算研究进展。     

散打、跆拳道运动员赛前体重控制的实验研究

对上海体育学院重竞技训练中心散打、跆拳道运动员在赛前慢性控制体重基础上进行亚急性控重。结果:运动员的体重下降,体脂百分比下降,瘦体重变化不大,运动员的体内离子保持平衡,机能状态和运动能力并没有受到明显影响。     

肾功能不全患者淋巴细胞内,外电解质的变化

为了了解肾功能不全患者细胞内，外电解质的情况，对１０名健康人，１０名肾功能正常的肾脏病人，１５名肾功能不全的患者进行了淋巴细胞风钾、钠、钙、镁含量以及血清相应电解质浓度的测定，结果表明，肾功能不全患者淋巴细胞内钾含量显著增高，血清钙浓度显著下降。