摘要：提出一种新型的混合永磁记忆电机,采用铁氧体作为低矫顽力永磁体,并对转子拓扑结构进行改进。由于电枢磁动势与铁氧体的磁化密切相关,根据磁动势与极数的关系可确定极数的选取。在不同定子槽数下,分析其空载反电动势及其满载转矩可选取出合适的槽数。该新型电机采用27槽6极结构,并针对该结构分析不同定转子尺寸参数下的反电动势和铁氧体磁化特性,得到不同的尺寸参数对电机性能的影响,从而为该类型电机的设计提供参考。最后设计并制造了一台样机,对样机进行仿真和测试,实验结果验证了理论分析的准确性。

摘要：Oxyfuel combustion with carbon capture and sequestration(CCS) is a carbon-reduction technology for use in large-scale coal-fired power plants. Significant progress has been achieved in the research and development of this technology during its scaling up from 0.4 MWth to 3 MWth and 35 MWth by the combined efforts of universities and industries in China. A prefeasibility study on a 200 MWe large-scale demonstration has progressed well, and is ready for implementation. The overall research development and demonstration(RD&D) roadmap for oxyfuel combustion in China has become a critical component of the global RD&D roadmap for oxyfuel combustion. An air combustion/oxyfuel combustion compatible design philosophy was developed during the RD&D process. In this paper, we briefly address fundamental research and technology innovation efforts regarding several technical challenges, including combustion stability, heat transfer, system operation, mineral impurities, and corrosion. To further reduce the cost of carbon capture, in addition to the large-scale deployment of oxyfuel technology, increasing interest is anticipated in the novel and nextgeneration oxyfuel combustion technologies that are briefly introduced here, including a new oxygen-production concept and flameless oxyfuel combustion.

摘要：Aspect-oriented modeling can uncover potential design faults, yet most existing work fails to achieve both separation and composition in a natural and succinct way. This study presents an aspect-oriented modeling and analysis approach with hierarchical Coloured Petri Nets(HCPN). HCPN has sub-models and well-defined semantics combining a set of submodels. These two characteristics of HCPN are nicely integrated into aspect oriented modeling. Submodels are used to model aspects while the combination mechanism contributes to aspects weaving. Furthermore, the woven aspect oriented HCPN model can be simulated and analyzed by the CPN Tools. A systematic web application case study is conducted. The results show the system original properties are satisfied after weaving aspects and all design flaws are revealed. As such, the approach can support web application design and analysis in an aspect-oriented fashion concisely and effectively.

摘要：层次孔炭材料呈合理的微孔-中孔/大孔结构及孔径分布,具有高的电化学活性表面、极短的扩散距离和较高的传质速率,在用作储能器件电极材料时,表现出优异的功率特性。通过综述近来年层次孔炭材料的设计制备及其在储能领域的应用进展,重点介绍了本课题组自2008年以来的研究成果,进而展望了层次孔炭材料的发展方向。指出:层次孔炭材料主要通过模板法或模板-活化联合法制备。这两种方法可以实现炭材料纳米结构的精确调控。最近,开发出来的更简易的免模板法展现出较好的应用前景。

摘要：An iterative identification and control design method based on v-gap is given to ensure the stability of closed-loop system and control performance improvement. The whole iterative procedure includes three parts： the optimal excitation signals design, the uncertainty model set identification and the stable controller design. Firstly the worst case v-gap is used as the criterion of the optimal excitation signals design, and the design is performed via the power spectrum optimization. And then, an uncertainty model set is attained by system identification on the basis of the measure signals. The controller is designed to ensure the stability of closed-loop system and the closed-loop performance improvement. Simulation result shows that the proposed method has good convergence and closed-loop control performance.

摘要：The idea of functionally gradient material (FGM) theory was used to design ceramic nozzle based on the erosion wear behaviors of the ceramic nozzles and the out- standing properties of FGM. The purpose is to reduce the tensile stress at the entry region of the nozzle during sand blasting processes. The design theory and methods of gradient ceramic nozzle were proposed. The physical, micromechanical, and composition distribution models of gradient ceramic nozzle were established. The optimum composition distribution of the gradient ceramic nozzle material was determined from the solution of the multi-objective optimization calculation by constructing the models of the composition distribution versus the structural in- tegrity of the compact in fabricating process. Results showed that compressive residual stresses appeared at the entry area of the gradient ceramic nozzle. The optimized component distribution exponent p is 0.5. An SiC/(W,Ti)C gradient ce- ramic nozzle material was synthesized by hot-pressing according to the design result. Results showed that the surface Vickers hardness of the FGM-1 gradient ceramic nozzle materials was greatly improved in comparison with that of the other layers.

摘要：为了研究2种动态模量预测模型(基于黏度的Witczak 1-37A模型和基于剪切复数模量的Witczak1-40D模型)在江苏地区的适用性及不同混合料设计参数(级配类型、胶结料种类、体积参数)对动态模量的影响,进行了2种典型面层沥青混合料(Sup-13和AC-13)的动态模量试验研究,并将试验数据用于预测模型的分析.对不同沥青的黏度和动态剪切模量进行试验以获取预测模型的参数.试验结果表明:胶结料种类和沥青含量对动态模量有显著影响;2种预测模型与室内试验结果均有较好的相关度,Witczak 1-37A动态模量的预测模型精度更高.试验结果可用于更高精度动态模量预测模型的修正.

摘要：这份报纸在计划航行在常规波浪的手艺的数字模拟上论述研究。这允许保留高速度手艺的性能的海的精确估计。模拟集合在自由运动六度基于雷纳兹平均 Navier 司烧液体(RANSE VOF ) 的方程体积解答者。整修网孔技术和不可分的动态网孔方法被用来保证水动力学力量的好精确性和数字模拟的高效率。事件头波浪，倾斜的波浪和横梁波浪与三不同速度在模拟被产生(Fn =1.0， 1.5， 2.0 ) 。与波浪让计划手艺的性能来自不同方向的运动和海在流动解答者被显示。轮船设计者在驾驶在造高速度手艺的配置计划手艺的振幅和压力分发上把一个重音放在波浪的效果上。

摘要：A series of new benzimidazole derivatives was synthesized and characterized by IR,1H NMR,13C NMR,MS,and HRMS *** the new compounds were screened for their antimicrobial activities in vitro by a twofold serial dilution *** bioactive evaluation showed that 3,5-bis(trifluoromethyl)phenyl benzimidazoles were comparably or even more strongly antibacterial and antifungal than the reference drugs Chloromycin,Norfloxacin,and *** combination of2,4-difluorobenzyl benzimidazole derivative 5l and its hydrochloride 7 respectively with the antibacterials Chloromycin,Norfloxacin,and the antifungal Fluconazole was more sensitive to methicillin-resistant MRSA and Fluconazole-insensitive *** addition,the interaction of compound 5l with calf thymus DNA demonstrated that this compound could effectively intercalate into DNA to form a compound 5l-DNA complex that might block DNA replication and thereby exert good antimicrobial activity.

摘要：我们在场进有流动和静电干扰的破裂的化学 grouting 上的一系列试验性的测试流水，用透明破裂 grouting 试验性的设备。渗出物压力和薄泥浆繁殖的变化在我们的调查被比较。流动的水导致的结果表演渗出物压力落下，在繁殖区域的在上游的方面和落下的穿入半径的开发在一样的时期期间，与静态的水里的 grouting 相比。在薄泥浆到达联合边界以前，静态的水里的繁殖区域总是是圆的。然而，繁殖形状与流动的水为 grouting 从回合变成到椭圆形的形状破裂。为在就流动速度而言的破裂的薄泥浆穿入半径的一个理论模型被我们的试验性的结果开发并且验证。这些结果在改进破裂 grouting 机制并且在指导的理解是有用的设计惯例。