摘要：面对称高速飞行器在大攻角机动过程中存在气动耦合性强、稳定性弱及非线性、非定常特征显著的问题，这给飞行器气动特性研究、控制系统设计和地面验证提出了新的挑战。本文针对新型高速飞行器控制特性评估需求，以面对称高速飞行器模型为研究对象，在1 m量级高速风洞进行了虚拟飞行试验，设计了低阻尼滚转-偏航两自由度运动机构、小型化舵控装置和高性能无线测控系统，成功完成了多种控制策略下的倾斜转弯（bank-to-turn, BTT)机动试验，实现了控制特性评估与控制律对比、验证，为飞行器气动和飞控设计提供了可靠的试验依据和验证平台。

摘要：Internal SET has become a great concern in normal radiation-hardened flip-flops with increases in *** investigate the internal SET problem in the traditional hardened flip-flops in this *** also propose a novel structure to eliminate the internal SET ***-dimensional technology computer-aided design(TCAD)was adopted to verify the hardened performance of this proposed novel ***,the power and setup time were compared with the traditional hardened flip-flops.

摘要：在当前社会快速发展与科技进步的推动下,地下空间利用水平不断提高,为尽可能减小基坑开挖对周边环境的影响,排砖加钢筋混凝土内支撑方式得到广泛应用。多圆环内支撑体系能够有效控制基坑变形,确保支撑体系安全性,基于某市深基坑支撑布置项目,深入探讨了多元换内支撑体系在软土基坑的具体应用实践,结合工程需要阐述了软土基坑支护设计和施工技术,从而为地下基坑建设领域提供一种更加经济、高效且质量卓越的解决方案。

摘要：本研究深入分析了钢管桩-锚杆联合支护技术在具体房建工程中的应用。该工程由于基坑周边地形地质的复杂性,采用了钢管桩与锚杆联合的方法进行基坑支护,确保了施工的安全性与结构的稳定性。详细描述了钢管桩的设计、锚杆的安装及关键施工技术,并对施工过程中的关键控制点进行了讨论,以展示该技术在解决复杂地质条件下的有效性。

摘要：The real Direction Of Arrival (DOA) varies with time in mobile communication system. In such situation, the performance of conventional beamformers will be degraded obviously. Quantum Signal Processing (QSP) beamformer is insensitive to DOA errors, thus it can achieve stable output performance in such circumstance. This letter verified the effectiveness and feasibility of the QSP beamformer by simulation results.

摘要：Using Geant4 Monte Carlo code and Technology Computer-Aided Design(TCAD) simulation,energy deposition and charge collection of single event effects(SEE) are studied,which are induced by low-energy protons and α particles in small feature size *** analyzed charge collection of SEE especially at Bragg's peak and obtained two types of deposited energy distributions of protons and α particles at different incident *** two components of the total charge collected are quantified,which are due to drift current of the space charge region and current in the funnel region *** explain the high soft error rate in experiments of low energy proton.

摘要：Since single event transient pulse quenching can reduce the SET(single event transient) pulsewidths effectively,the charge collected by passive device should be maximized in order to minimize the propagated *** the perspective of the layout and circuit design,the SET pulsewidths can be greatly inhibited by minimizing the layout spacing and signal propagation delay,which sheds new light on the radiation-hardened ICs(integrated circuits) *** show that the SET pulsewidths of propagation are not in direct proportion to the LET(linear energy transfer) of incident particles,thus the defining of the LET threshold should be noted when SET/SEU(single event upset) occurs for the radiation-hardened *** capability of anti-radiation meets the demand when LET is high but some soft errors may occur when LET is ***,radiation experiments should be focused on evaluating the LET that demonstrates the worst response to the circuit.

摘要：研究在任意轴对称边界条件下和任意轴对称分布载荷作用下体积保持常数的圆柱壳的两类优化设计问题:极小化圆柱壳的最大挠度和极小化圆柱壳的柔度。采用阶梯折算法,用传递矩阵导出变厚度圆柱壳平衡问题的初参数解的显式表达式,将优化设计转化为极小化目标函数的非线性规划问题,并采用广义简约梯度法进行优化计算。对典型问题的计算表明,该方法能解决受应力、几何等约束的离散变量结构优化设计问题,计算过程具有编制程序方便、收敛快和精度高的优越性,是一种理想的优化设计方法。

摘要：设计了一种新型整体式SO2转化钒催化剂,催化剂内部设计了若干平行排列的交错的规则气流通道.研究结果表明,与传统散堆条形催化剂相比,流动阻力降低2/3左右.用于整体式钒催化剂成型的料浆经过特殊的处理,可以使催化材料机械强度提高近10倍.应力分布计算表明,整体式钒催化剂在孔道边角部分存在应力集中的问题,最大应力比所施压力高出8～8.5倍.通过优化处理后的新型整体式钒催化剂,具有与商业催化剂相当的催化活性,抗压机械强度约为1.10MPa.

摘要：针对航天器在大角度机动模式下的姿态控制问题。提出两种以相似反对称非线性结构作为期望闭环系统结构的姿态控制器设计方法。第一种方法是一种直接构造方法,其关键思想是利用运动学子系统的零输入稳定性,使设计一步完成,而且得到的控制器具有简单的结构。在第二种方法中,姿态误差的积分变量被引入姿态运动模型中,然后进行面向系统结构的逆推设计,得到含有积分作用的姿态控制器,与常规逆推设计的姿态控制器相比,设计过程较简单。仿真结果表明了设计方法的有效性。