身份加密多云多副本完整性审计协议

为解决现有可证明数据持有(PDP)协议只适用于单云存储服务器且过度依赖公钥基础设施的问题,提出一种新的基于身份的多云多副本PDP协议。该协议采用身份加密来简化证书管理,并设计双层默克尔哈希树作为新的安全数据结构,以维护多副本的新鲜性和一致性。安全性分析和实验结果均验证了该协议具备安全性和高效性,能够在多个云存储服务器上实现多副本完整性审计,并在标签生成、证据生成和证据验证3个阶段的效率上明显优于对比算法。

气相色谱检测榄香烯复合脂质体中榄香烯含量

目的:建立榄香烯复合脂质体中榄香烯含量的检测方法。方法:选用正己醇作为内标,采用DB-225毛细管色谱柱,气相色谱法检测榄香烯复合脂质体中榄香烯含量。结果:榄香烯与内标分离良好,回归方程为Y=1.0650X-0.0067,榄香烯浓度在20～700μg/mL的范围内线性良好(r=0.9998),平均加样回收率103.44%,RSD%为2.47%,精密度良好,重复性良好,耐用性良好,符合要求。结论:此法可用于榄香烯复合脂质体中榄香烯含量的检测,精确、简便、快速。

连续结构PC轨道梁临时支撑施工技术

连续结构PC轨道梁安装时,不能利用现有桥墩作为支撑点。论文介绍了一种临时支撑体系,可作为轨道梁吊装后的临时支撑点,确保轨道梁稳定,为类似工程提供参考。

温郁金化学成分、药理作用、临床应用的研究进展及其质量标志物的预测分析

温郁金作为传统中药材“浙八味”之一,为浙江省道地药材,应用广泛,具有消淤散结、行气活血和清心解郁等功效。现代研究表明其具有抗肿瘤、抗炎、抗氧化、抗血栓和保肝等药理作用,主要含有倍半萜类、单萜类、二萜类和姜黄素类等多种化学成分。该文对温郁金近十年来化学成分和药理作用的研究进展进行综述,结合传统功效探讨现代临床应用,并以质量标志物(quality marker,Q-marker)概念为理论依据,从植物亲缘、药性、药效、炮制和化学成分可测性等方面对其质量标志物进行预测分析,为未来建立更科学的质量评价体系及其进一步研究应用提供参考。

Review of Anemone Raddeana Rhizome and Its Pharmacological Effects

The chemical compositions of Anemone raddeana Rhizome, a kind of traditional Chinese medicine, were reviewed, along with its bioactivity and pharmacological properties and method improvements of extracting and detecting triterpenoid saponins. A. raddeana Rhizome is used to treat neuralgia and rheumatism, and is rich in triterpenoid saponins, most of which are pentacyclic, with oleanane as the nucleus. So far, 37 triterpenoid saponins have been determined from the herb. Its reported bioactivity and pharmacological properties have been described as anticancerous, antimicrobial, anti-inflammatory, analgesic, antipyretic, anticonvulsive, antihistaminic, and sedative. It has also been used for the induction of the humoral immune response and treatment of liver fibrosis in chronic hepatitis. However, the herb also has hemolytic effects and can be toxic, which limits its clinical application. Further studies are needed on the pharmaceutical functions, mechanisms, and immunological responses to contribute to the herb＇s clinical applications.