半导体激光泵浦掺钕铍酸镧固体激光器

报道了用国产二极管激光端面泵浦自行研制的掺铵铍酸镧（Ｎｄ：ＢＥＬ）晶体得到１．０７μｍ线偏振激光输出的研究结果。分别用非球面透镜成像、加棱镜对扩束、加光纤传输三种方式将泵浦光耦合到增益介质中，由此得到不同的斜效率，并对此作了分析。     

输出千瓦级基模CO_2激光的七折光学谐振腔

报道了一种成功地在横向磁场约束的直流辉光放电激励横向流动ＣＯ２激光器上输出千瓦级基模光束的七折腔的结构、参数及实验结果，并对其进行了讨论。     

原发性纤毛运动障碍电镜观察

本文报道一例原发性纤毛运动障碍患者的超微结构表现，该例病人具有典型的Ｋａｒｔａｇｅｎｅｒ氏综合征的临床表现，电镜观察到支气管粘膜上皮纤皮弯曲倒伏，部分相互融合，发育不主发，可呈连体状，质膜有丝状突起，有的纤毛呈正方形或多角形，中央及周围微管缺失，移位和增加，内外动力臂缺失，本文对该病的超生病理学进行了讨论。     

A Study of the Parasitic Properties of the Schottky Barrier Diode

In this paper, we present a newly designed parameter extraction method of the Schottky barrier diode (SBD) with the purpose of measuring and studying its parasitic properties. This method includes three kinds of auxiliary configurations and is named as three-configuration parameter extraction method (TPEM). TPEM has such features as simplicity of operation, self-consistence, and accuracy. With TPEM, the accurate parasitic parameters of the diode can be easily obtained. Taking a GaAs SBD as an example, the pad-to-pad capacitance is 7 fF, the air-bridge finger self-inductance 11 pH, the air-bridge finger self-resistance 0.6 Ω, and the finger-to-pad capacitance 2.1 fF. A more accurate approach to finding the value of the series resistant of the SBD is also proposed, and then a complete SBD model is built. The evaluation of the modeling technology, as well as TPEM, is implemented by comparing the simulated and measured I-V curves and the S-parameters. And good agreements are observed. By using TPEM, the influence of the variation of the geometric parameters is studied, and several ways to reduce the parasitic effect are presented. The results show that the width of the air-bridge finger and the length of the channel are the two largest influencing parameters, with the normalized impact factors 0.56 and 0.29, respectively. By using TPEM and the modeling technology presented in this paper, a design process of the SBD is proposed. As an example, a type of SBD suitable for 500–600 GHz zero-biased detection is designed, and the agreement between the simulated and measured results has been improved. SBDs for other applications could be designed in a similar way.     

基于箱粒子滤波的鲁棒标签多伯努利跟踪算法

针对在未知杂波和检测概率的跟踪环境中标准的标签多伯努利（LMB）算法跟踪精度较低、粒子覆盖集过大致使复杂度较高的问题,引入区间分析技术,提出基于箱粒子滤波的鲁棒LMB跟踪算法。建立目标增广空间模型,基于箱粒子滤波方法,推导出有杂波状态标签和LMB元素标签的预测、更新方程,并用多目标箱粒子LMB滤波递推估计目标状态。仿真结果表明,当杂波和检测概率先验未知,与现有非标签、非鲁棒算法相比,所提算法可实现在低检测概率和高杂波强度环境下对目标的稳定跟踪,同时大幅度提高算法的运行效率。     

小型无人机发动机控制系统 CAN 总线通信技术

为了提高小型无人机发动机控制系统通信的实时性和可靠性,设计一种基于CAN总线通信的小型无人机机载设备通信系统.该系统采用响应式和分时式2种发送机制,设计一种基于PIC单片机的多ID CAN总线通信程序和同步时序,详细设计了发动机控制系统CAN总线通信的实现方法,并在发动机热试车和飞行试验中进行验证.试验结果表明:该系统设计合理,提高了发动机控制系统的通信速率,增强了抗干扰能力,满足发动机控制系统与机载各设备之间实时可靠通信的要求,可广泛应用在小型无人机通信系统中.     

基于SPA+AHP的空潜无人攻势布雷方案优选

为解决无人机、无人潜航器等新型无人平台攻势布雷方案优选的问题,提出无人攻势布雷作战指标评估体系.在传统布雷作战指标评估基础上,利用集对分析法计算预选方案与理想方案组成集对的同一对立程度,采用层次分析法和特征属性值计算权值,并通过算例进行验证.结果表明:方案优选中应重点考虑隐蔽性要素,由于无人潜航器具有较大的隐蔽性优势,应成为攻势布雷作战的首选平台.该方法能为无人攻势布雷方案优选提供新思路.     

间隔纸靶测试弹丸章动试验数据拟合分析

针对引信技术关注的火炮外弹道起始段弹丸章动规律问题,结合理论分析得到的数学模型,利用MATLAB拟合间隔纸靶试验得到的章动数据,得到外弹道起始段弹丸章动规律半经验表达式.该方法解决了纸靶法离散化测试数据处理和判读问题,可较准确得出章动周期,并解决传统章动测试离散化数据无法给出最大章动角真值且系统偏小的问题.     

Engineering Sensor Arrays Using Aggregation‐Induced Emission Luminogens for Pathogen Identification

Lacking rapid and reliable pathogen diagnostic platforms, inadequate or delayed antimicrobial therapy could be made, which greatly threatens human life and accelerates the emergence of antibiotic‐resistant pathogens. In this contribution, a series of simple and reliable sensor arrays based on tetraphenylethylene (TPE) derivatives are successfully developed for detection and discrimination of pathogens. Each sensor array consists of three TPE‐based aggregation‐induced emission luminogens (AIEgens) that bear cationic ammonium group and different hydrophobic substitutions, providing tunable logP (n‐octanol/water partition coefficient) values to enable the different multivalent interactions with pathogens. On the basis of the distinctive fluorescence response produced by the diverse interaction of AIEgens with pathogens, these sensor arrays can identify different kinds of pathogens, even normal and drug‐resistant bacteria, with nearly 100% accuracy. Furthermore, blends of pathogens can also be identified accurately. The sensor arrays exhibit rapid response (about 0.5 h), high‐throughput, and easy‐to‐operate without washing steps.