基于数据运营安全的个人信息保护

个人信息因其自身携带隐私特性,与每个个体息息相关.个人信息保护不当,影响公众权益、企业利益以及社会秩序.在互联网、大数据、5G万物互联的时代,个人信息被广泛收集和使用,必须妥善解决个人信息保护问题,才能保障整个数据产业健康发展.而现有的个人信息保护方法或技术,不足以应对新形势下的保护诉求.基于数据运营安全的个人信息保护...     

OTN的线型保护机制研究

介绍了光传输网(OTN)线型保护的体系结构及匹配要求、常用命令,详细分析了OTN线型保护的APS协议,并举例分析了APS协议的传输过程.     

基于集群架构的OTN设备管理系统的实现

针对传统光传送网络(OTN)设备业务单盘数量过少,且槽位扩容会造成业务中断,成本过高的问题,文章提出了基于集群架构的光传送网(COTN)通信系统.COTN设备管理系统的设计是实现现网设备从OTN升级到COTN的可靠技术保障,是保障COTN中业务承载单盘的兼容性与扩展性的有效技术手段,文章采用单网元多子框的形式对COTN...     

小比距离密闭空腔爆炸爆后气体温度和压力测量技术研究

为实现空腔爆炸温度、压力变化趋势的准确测量,基于铠装K型热电偶和压力变送器,建立密闭空腔爆后气体温度、压力测量系统。设计密封隔热防护装置,将传感器的敏感端与信号调理模块分别安装在两个密封腔内,有效提高了传感器在大当量爆炸冲击条件下的存活率。在0.86m/kg^1/3比距离密闭空腔大当量爆炸条件下,对传感器及防护装置的性能进行考核验证,爆后测量采集到了有效的气体温度及压力变化历程,且传感器状态能够最终恢复至正常状态。测试结果表明,使用密封隔热安装的K型热电偶和压力变送器可以满足小比距离密闭空腔爆后气体静态温度、压力测量需求。     

EONs中一种混合路径专有保护算法

为了降低带宽阻塞率,节约频谱资源,在动态业务到达的弹性光网络(EONs)场景下,不同业务请求的路径状况可能不同,因此不能确定单路径专有保护与带宽分割多路径专有保护的优劣.文章结合单路径专有保护和带宽分割多路径专有保护提出了一种混合路径专有保护(HDPP)算法.该算法利用路径的单位频谱效率和路径跳数计算了k条链路不相关候...     

Cardiorenal Protective Effect of Costunolide against Doxorubicin-Induced Toxicity in Rats by Modulating Oxidative Stress,Inflammation and Apoptosis

Doxorubicin (DXB) is one of the most commonly used anticancer agents for treating solid and hematological malignancies; however, DXB-induced cardiorenal toxicity presents a limiting factor to its clinical usefulness in cancer patients. Costunolide (COST) is a naturally occurring sesquiterpene lactone with excellent anti-inflammatory, antioxidant and antiapoptotic properties. This study evaluated the effect of COST on DXB-induced cardiorenal toxicity in rats. Rats were orally treated with COST for 4 weeks and received weekly 5 mg/kg doses of DXB for three weeks. Cardiorenal biochemical biomarkers, lipid profile, oxidative stress, inflammatory cytokines, histological and immunohistochemical analyses were evaluated. DXB-treated rats displayed significantly increased levels of lipid profiles, markers of cardiorenal dysfunction (aspartate aminotransferase, creatine kinase, lactate dehydrogenase, troponin T, blood urea nitrogen, uric acid and creatinine). In addition, DXB markedly upregulated cardiorenal malondialdehyde, tumor necrosis factor-α, interleukin-1β, interleukin-6 levels and decreased glutathione, superoxide dismutase and catalase activities. COST treatment significantly attenuated the aforementioned alterations induced by DXB. Furthermore, histopathological and immunohistochemical analyses revealed that COST ameliorated the histopathological features and reduced p53 and myeloperoxidase expression in the treated rats. These results suggest that COST exhibits cardiorenal protective effects against DXB-induced injury presumably via suppression of oxidative stress, inflammation and apoptosis.     

军用计算机系统中的电磁信息泄漏和防护

分析了计算机电磁信息泄漏的途径、机理、特点及接收和还原,提出了军用计算机系统中电磁信息防护的几种方法。     

星载光学遥感仪器激光防护薄膜技术

激光武器的迅速发展使得激光防护技术研究成为必要,目前,破坏卫星上的遥感仪器是激光反卫星的一个主要可能途径。为了有效防护星载遥感仪器,利用光学薄膜方法,可以对氧碘激光进行防护的薄膜,在不影响遥感仪器正常工作的条件下,可将遥感仪器的激光损伤或致盲阈值提高80倍,大幅度提高了遥感仪器的生存能力。     

P2O5/SiO2 as an Efficient Reagent for the Preparation of Z -Aldoximes Under Solvent-Free Conditions

Abstract

A facile and efficient method for the preparation of Z-aldoximes is improved by means of P₂O₅/SiO₂ reagent in solvent-free media. Advantages of this method are the use of inexpensive and selective reagent, with high yields in simple operation, and short reaction time under solvent-free conditions.     

绿色化学中的环境因子与危险化学品

许多化学品对生态环境和人类健康造成危害,本文综述危险化学品的类型及为控制其污染而提出的环境因子等概念。