罗丹明B掺杂ZnQ2的电致发光器件及其性能研究

将8-羟基喹啉锌(ZnQ₂)和8-羟基喹啉铝(AlQ₃)的发光性能进行比较,筛选出ZnQ₂作为掺杂发光层主体材料,与荧光染料罗丹明B(RhB)共掺杂,采用真空热蒸镀法制备有机电致发光器件(OLEDs).掺杂不同浓度RhB可以获得不同波长的光发射,得到不同的发光色调.通过对溶液态荧光光谱和器件发光光谱等特性的测量与分析,探讨了器件的能量转移及发光机理.     

引信侵彻目标发火机构运动分析

该文以某引信为例,研究它在低着速、侵彻软目标时引信发火机构的运动规律。利用实验测得的弹引系统着靶参数,建立雷管的动力学方程,救是雷管相对击针处于不同位置时的位移速度时间曲线。在此基础上,探讨引信着靶时击针和雷管的相对运动规律。     

大功率开关磁阻电机调速系统的研究与设计

介绍一种功率较大、负载强度变化的开关磁阻电机调速系统,论述了电机主电路的结构和计算机的接口与控制,给出功率变换器、ＧＴＯ驱动电路和控制系统的硬件电路及实验结果．     

Nanoscale all-optical devices based on surface plasmon polaritons

Surface plasmon polariton, a kind of surface electromagnetic wave propagating along the interface between metals and dielectrics, provides an excellent platform for the realization of integrated photonic devices due to its unique properties of confining light into subwavelength scales. Our recent research progresses of nanoscale integrated photonic devices based on surface plasmon polaritons, including all-optical switches, all-optical logic discriminator, and all-optical routers, are introduced in detail.     

光波导器件应用及其表面光滑化研究综述

光波导器件在许多领域都有着广泛的应用和良好的发展前景。而波导器件表面粗糙度影响传输光损耗和环形腔Q值,制约光波导器件的发展和应用。目前常用波导器件表面和侧壁光滑化方法有热氧化法、激光束法和氢退火法,其中氢退火法有较好的光滑化效果,但对于氢退火工艺的机理并不清楚,无法进一步优化实验参数,达到最佳实验效果。在对上述内容进行综述的基础上,通过Materials Studio仿真分析,初步研究了退火机理,基于仿真研究结果,分析氢气环境对退火过程的意义,为应用氢退火工艺对波导器件光滑化实验提供理论指导。     

纳米管、纳米线电子器件的研制

介绍了利用微加工方法制做单根纳米管和纳米线电子器件的过程,实现了几百纳米电极间距的器件制做,为进行单根纳米线电子器件的电子输运测量提供了可能.     

Research on the special lifting devices for steel box girders of Sutong Bridge

Sutong Bridge is a cable-stayed bridge with a steel box girder and a main span of 1 088 m. The steel box girder of main span includes five portions ： back span large unit, large block of pylon, standard girder, back span closure girder and middle span closure girder. Each back span large unit is fabricated by welding several deck segments together in factory, and is erected by floating crane. As navigational clearance of the main bridge is high, the traditional truss lifting device can＇ t satisfy the requirement of domestic lifting cranes for this kind of lifting height and weight. Hence, a kind of lighter lifting device for the erection of back span large units was accepted for this bridge. In this paper, the design and use of this lifting device is introduced. The upper structure used lifting gantry to install the standard girder segment by cantilever method. Because the bridge＇ s navigation clearance is high, and the girder segment is wide and heavy, the meteorology and hydrology condition of the bridge district is abominable, and the requirements of long cable girder side pull-in, structure and performance propose high request to the lifting gantry. In this paper, the design and use key point of long cable pull-in angle adjustment device integrate into lifting gantry, is introduced.     

Accuracy and Electromagnetic Safety Evaluation of a Portable Electromagnetic Localization System for Micro Invasive Medical Devices in Vivo

Aiming at localizing the telemetric capsule for detecting gastrointestinal physiological parameters in vivo accurately, a portable alternating current ( AC ) electromagnetic localization system is designed. To verify the feasibility of the method, the model and construction of the localization system are detailed. And static and dynamic accuracy of the localization system are tested by experiments. Next, we compare the simulating results of the electromagnetic radiation aroused by the localization system with the electromagnetic safety standards of human (ICNIRP guidelines and IEEE standard C95. 1 - 1991).Finally, in terms of the results of the static and dynamic experiments, conclusions are drawn that the accuracy of portable positioning system is high (less than 10 mm)enough to satisfy the localization need of the micro invasive medical devices in vivo, and there is no harm of electromagnetic radiation to human.     

原料场的计算机过程控制设计

设计一套基于典型钢铁企业大型原料场的计算机过程控制系统,制定并收集卸料、运输以及料场的配料等日常作业情况,同时收集库存信息,保证混匀料的质量稳定以及后续工序原料的稳定供应,提高管理精度,并讨论了计算机控制皮带等移动传输设备的路径如何优化。结果表明,在原料场进行计算机过程控制管理,能合理化安排各种作业,减少人员工作负荷,对提升原料场的管理水平具有很明显的效用。