摘要：针对实现温度无源无线传感的问题,设计了一种用于测试液体温变介电特性的微流体温度传感器。其主体结构为加载了2个对称缺陷结构的共面波导(Co-Planar Waveguide,CPW)传输线,2个缺陷结构上方放置了相同结构的微流通道。1个微流通道内注入蒸馏水用于温度感知,另1个微流通道内为空腔,作为参照以抵消环境影响。通过在电路仿真软件ADS中建立该传感器的等效电路模型,分析了带阻频率和温度之间的关系,以验证所设计温度传感器的理论可行性。然后利用液体介电特性的Debye弛豫模型获取不同温度下水的介电常数,并在电磁仿真软件HFSS中对该传感器结构进行仿真,进一步验证了用电磁参数实现温度传感的可行性。电磁仿真结果与电路仿真结果高度一致,证明了带阻频率与温度之间的高度相关性。因此,本设计利用带阻频率测试可实现30~95℃范围内的温度传感。

摘要：Perovskite solar cells(pero-SCs)performance is essentially limited by severe non-radiative losses and ion *** numerous strategies have been proposed,challenges remain in the basic understanding of their ***,we report a dielectric-screening-enhancement effect for perovskite defects by using organic semiconductors with finely tuned molecular structures from the atoms *** method produced various perovskite films with high dielectric constant values,reduced charge capture regions,suppressed ion migration,and it provides an efficient charge transport pathway for suppressing non-radiative recombination beyond the passivation *** resulting pero-SCs showed a promising power conversion efficiency(PCE)of 23.35%with a high open-circuit voltage(1.22 V);and the 1-cm^(2) pero-SCs maintained an excellent PCE(21.93%),showing feasibility for scalable *** robust operational and thermal stabilities revealed that this method paved a new way to understand the degradation mechanism of pero-SCs,promoting the efficiency,stability and scaled fabrication of the pero-SCs.

摘要：对一款采用行星排的混合动力商用车的能量管理策略进行研究,通过对整车动力系统参数的分析,制定了基于规则的能量管理策略。所设计的能量管理策略包括驾驶员扭矩需求模块、模式转换模块、SOC控制模块和扭矩分配模块,在MATLAB/simulinlk软件中完成对能量管理策略的搭建。利用AVL Cruise软件对该款商用车进行整车模型的搭建,并完成与MATLAB/simulink的联合仿真。仿真表明:所设计的能量管理策略能够较好的实现对整车的基本控制,合理的进行模式的切换,扭矩分配较为合理。