A unified approach to reliability and edge fault tolerance of cube-based interconnection networks under three hypotheses

The Journal of Supercomputing - The topological structures of the interconnection networks of some parallel and distributed systems are designed as n-dimensional hypercube $$Q_n$$ or n-dimensional...     

牛奶纤维理化性能及其开发应用探讨

文章介绍了牛奶纤维的理化性能,利用纤维强伸度测试仪对牛奶纤维的机械性能进行了测试,利用差示扫描量热器和热重分析仪对牛奶纤维的热学性能进行了分析研究。分析了牛奶纤维的化学性能、染色性能及保健护肤、天然抑菌等特殊功能,探讨了牛奶纤维的产品开发和应用。     

纳米微粒作为电池活性材料的前景

介绍了用溶胶凝胶法、微乳法、低热固相反应法制备纳米级电池活性材料——如MnO_2、Ni(OH)_2、Bi—MnO_2、LiCoO_2以及这些纳米材料的充放电性能。数据表明,一般来说这些纳米材料本身的放电容量并不比相应的常规粒径材料好,但若与常规粒径材料混合,则存在一个最佳混合配比,可大大提高其放电容量。因而纳米材料有可能成为有前景的电池活性材料。     

基于级联随机共振与APSO算法相结合的信号检测方法

针对随机共振方法以系统的参数和噪声强度的匹配为研究背景的局限性,为解决级联双稳系统参数的合理选取的问题及克服自适应随机共振单参数优化的不足之处,提出了一种基于级联随机共振与自适应粒子群(APSO)算法相结合的方法。该方法以系统的输出信噪比为优化目标函数,采用自适应粒子群算法较强的全局搜索能力和粒子(待优化参数)的多样性,对级联双稳态随机共振的级联系统参数进行同步优化,使系统处于最佳随机共振工作状态。仿真结果表明,该方法可以提高输出信噪比及算法的收敛速度,实现良好的检测效果。     

Controllable memristive patterns in poly(9,9-dioctylfluorene)-based sandwich device

Currently, there are two prevalent types of I-V memristive patterns for memristive applications, 0-type and 8-type hysteresis loop, and their respective characteristics result in their specific applications in different situations, such as data storage and neuromorphic computing. In spite of the abundant achievements of these remarkable performances, scarce works are specially concerned about the relations and regulations between them for persuing the multiple functions in a single element, and an ideal platform with both the achievements and controllable transformations has been rarely reported. Herein, the novel organic material—poly(9,9-dioctylfluorene) (PFO) is utilized to construct the sandwich prototype. The electrical transporting properties are systematically investigated through particular programming protocols. The 0-type and 8-type memristive patterns are successfully obtained during low and high voltage sweeps, respectively. Then the sectionalized fitting results of the current curves, the carrier transporting behaviors as well as the regulations of device energy levels are associatively demonstrated to analyze the electrical activity-dependent transformations between different memristive patterns. More importantly, the appearance of the 8-type hysteresis loop can be regulated by the rectification property, and the rectification can be largely enhanced by the reconfiguration of device energy levels. Consequently, for the versatile memristive device, based on the 0-type hysteresis, it can serve as a data storage or artificial synapse element, and the rectification-modified memristive behaviors can effectively impede the unintended sneak current paths for high-density integration.     

酱油熟料的微波加压灭菌研究

采用微波加压灭菌酿造酱油熟料的技术方法是可行的,它具有时间短、灭菌效率高、微波功率和灭菌时间容易精确控制的优点,更容易在实现酱油孰料的完全灭菌的同时,最大限度地提高酱油孰料的消化率。     

超临界甲醇法制备文冠果种仁油生物柴油研究

研究超临界甲醇法制备文冠果种仁油生物柴油时温度、醇油摩尔比、反应时间和助溶剂对油脂转化率影响,并对制备生物柴油样品进行质量指标分析。结果表明,文冠果种仁油在超临界甲醇中较为适宜转酯化反应条件为:反应温度350℃,醇油摩尔比40∶1,反应时间15 min,油脂转化率为91.25%;且生物柴油样品多项理化指标基本达到美国ASTM生物柴油标准,并与中国0#柴油标准接近。     

比较研究新疆小茴香不同溶剂提取物的抗氧化活性

研究新疆小茴香4种不同溶剂萃取物的抗氧化活性.采用DPPH、ABTS和还原能力法评估不同萃取物的抗氧化活性,并测定了萃取物中的总酚和总黄酮的含量.结果表明,各样品具有不同程度的抗氧化能力,甲醇萃取物的抗氧化活性显著强于其他溶剂萃取物.小茴香抗氧化活性的主要物质为酚类化合物,与其总黄酮的含量并没有明显的关联.     

不同捻度紧密赛络纺纱与紧密纺纱性能对比

针对不同捻度纺出的紧密赛络纺纱和紧密纺纱性能进行对比分析,结果显示,捻度的不同对紧密赛络纱的条干CV值影响不大;捻度越大,紧密赛络纱的毛羽指数越小,单纱强度越高;紧密赛络纱的条干、毛羽及强力均优于紧密纺单纱,略差于紧密纺股线。     

油莎豆油不同提取方法的比较

全面比较了油莎豆油的溶剂浸提法、水酶法和水酶-冻融技术这3种提取方法,探索不同提取方法的提取机理,为油莎豆油提取产业化生产提供指导。研究比较了3种油莎豆油提取方法的提取率、油品理化性质、油莎豆粕粉扫描电镜图。结果表明,水酶法和水酶-冻融技术相对溶剂浸提法更具开发潜力。