有机硅涂料的剖析

采用现代化分析手段———气相色谱 -质谱 (GC -MS)、红外光谱 (IR) ,分析出有机硅涂料的主要成分 ,并对其所用有机硅类型和偶联剂进行定性。     

马铃薯淀粉渣的羧甲基化研究

研究了马铃薯淀粉渣与氯乙酸进行羧甲基化反应的一般规律，考察了反应温度、反应时间、原料配比等因素对产物取代度的影响，通过正交试验，找到了最佳反应条件，并对产物性能进行了测试。     

聚丙烯催化剂进展及应用

介绍了聚丙烯（ＰＰ）催化剂、工艺技术的进展及近十几年世界新开发的金属茂催化剂的结构、特点及用于生产问规聚丙烯的实例。金属茂催化剂用于ＰＰ生产，为开发高性能ＰＰ产品，提高市场竞争能力提供了可能。     

An alternate quantum adiabatic evolution for the Deutsch–Jozsa problem

Deutsch–Jozsa algorithm has been implemented via quantum adiabatic evolutions by Das et al. (Phys Rev A 65:062310, 2002) and Wei et al. (Phys Lett A 354:271, 2006). In the latter literature, the authors have shown a modified version of the adiabatic evolution which can improve the performance of the algorithm of S. Das et al’s to constant time. In this paper, we also improve the algorithm of S. Das et al’s in a constant time but by using a different construction of adiabatic evolution, i.e., adding ancillary qubits. The algorithm in this paper provides an alternative option to potential users.     

Optimality of partial adiabatic search and its circuit model

In this paper, we first uncover a fact that a partial adiabatic quantum search with \(O(\sqrt{N/M})\) time complexity is in fact optimal, in which \(N\) is the total number of elements in an unstructured database, and \(M\) ( \(M\ge 1\) ) of them are the marked ones(one) \((N\gg M)\) . We then discuss how to implement a partial adiabatic search algorithm on the quantum circuit model. From the implementing procedure on the circuit model, we can find out that the approximating steps needed are always in the same order of the time complexity of the adiabatic algorithm.     

Applications of textured surfaces on bubble trapping and degassing for microfluidic devices

This paper introduces a passive degassing mechanism using textured surfaces to trap and transport bubbles, and then using hydrophobic porous membranes to vent out bubbles in a microfluidic system. The bubble trapping ability is achieved by creating nanostructures to promote bubble nucleation and coalescence on the sidewalls of KOH-etched concave pits in a silicon substrate. The substrate, which is bonded with a porous membrane, is placed in a liquid system with chemically generated CO₂ bubbles to examine the degassing ability. The results validate that the bubbles can be easily trapped on the surfaces with nanostructures, and then vented through the porous membrane. Our proposed approach possesses the advantage of simple fabrication, great structure robustness, and effective bubble trapping and removing abilities, which show their great potential as economic, passive means of preventing the gas byproducts from blocking surfaces and improving the efficiency of microfluidic systems during operations.     

When smart grid meets PHEVs: a smart load distribution mechanism in smart grid

Along with the increasing popularity of electric vehicles caused by economic and environmental incentives, the penetration of plug-in hybrid electric vehicles (PHEVs) poses a great threat to the power grid, especially to the aggregated load in the power system. Motivated by this observation, in this paper, we analyze the impact of large-scale usage of PHEVs and address the load distribution problem by solving a decentralized optimization problem and smoothening the peak load with pricing strategies in the power grid. We also investigate the influence of charging time and charging mode on load distribution, as the charging price varies with the changes of these two factors. Our simulation study on PJM’s data warehouse shows that the proposed strategies can well smooth the peak load by pricing on the charging time and mode. The results also indicate that our strategies always distribute the load in a smoother manner at a smaller load fluctuation compared with other schemes (e.g., First Come First Service and PMCS) and thus improving the stability and reliability of the power grid.     

Research on the comprehensive traffic state evaluation model linked with drivers’ perception under the vehicle networking

Unified judgment standards and methods are often adopted to identify traffic state in certain road network based on traffic flow parameters. However, drivers often have different perceptions about the traffic state on different road sections, since their expectations on traffic state vary more or less from each other on different road sections. In particular, under the vehicle networking, out of considerations for safety and other relevant factors, requirements for the correlation and coordination of running vehicles have also raised significantly. Therefore, it is necessary to take driver’s perception about the driving conditions of certain road sections into consideration to adjust the release of traffic state. This paper has provided a comprehensive traffic state evaluation model linked with driver’s perception under the vehicle networking. The authors first establish an ANFIS model based on the T–S model and then conduct statistical analysis on drivers’ perceptions about certain traffic state. At last, the authors use the results of statistical analysis as regulatory factors to amend the parameters input through ANFIS. Through simulation, this paper has demonstrated that the model established has a high rate of convergence, a high identification precision and the generalization ability to conduct researches on the identification of traffic state.     

基于多特征融合和SVM分类器的植物病虫害检测方法

针对农业领域植物病虫害检测问题,提出一种基于高清视频图像融合特征的支持向量机(SVM)的检测方法,实现农业生产中植物病虫害的快速检测。对每幅植物叶片图像的颜色、HSV、纹理和方向梯度直方图四种特征采用基于特征包的多特征融合方法,形成特征向量,并利用SVM分类器进行训练分类。对单特征与融合特征的SVM分类器性能进行试验比较,所提出的方法具有较高的准确率。     

3,4,5-三甲基叔丁基苯的合成与分析

介绍了以连三甲苯和氯代叔丁烷为起始原料 ,在自制的非均相催化剂W 1 0 0作用下一步合成3,4 ,5 -三甲基叔丁基苯的简便方法。经探索性试验、正交试验和单因素试验确定了最佳反应条件 :连三甲苯与氯代叔丁烷物质的量比为n连三甲苯∶n氯代叔丁烷 =1∶1 ,催化剂W 1 0 0的用量占连三甲苯的质量分数为 2 % ,反应温度 5℃ ,反应时间 7～ 8h ,在此条件下 ,3,4 ,5 -三甲基叔丁基苯的收率达到 79%以上