神经网络稳定性的逻辑分析

神经网络稳定性分析的传统方法是采用权矩阵的定量分析。本文提出一种基于推理和矛盾分析的逻辑分析法，并阐明导致网络不稳定的局部结构因素，这有利于神经网络的分析和设计。     

多普勒雷达本振相位噪声导致的目标信噪比损失

本文讨论本振相位噪声产生的运动目标信号与接收机热噪声功率比的损失,得到了本振相噪为白噪声调相和白噪声调频时,目标信噪比损失的计算公式。     

速度/加速度误差补偿对光电跟踪系统稳定性影响分析

高速高精度光电跟踪控制系统采用速度/加速度误差补偿控制策略后,虽降低了系统跟踪误差,对系统稳定性有所影响,但提高了系统跟踪精度.通过Matlab对比加入速度、加速度误差补偿控制策略前后,在提高光电跟踪系统跟踪精度的同时,虽然系统稳定裕度有所降低,但恰当选择参数对系统稳定性几乎无影响.     

复杂电磁环境下联合作战指挥信息系统稳定性与可靠性研究

从复杂电磁环境分析联合作战指挥信息系统的稳定性与可靠性.复杂电磁环境对联合作战指挥信息系统设备的影响涉及计算机系统、战场信息采集的真实性、战场信息传输的稳定性及战场信息显示系统等方面.而提高指挥信息系统的电磁兼容能力的措施则包括屏蔽、接地、隔离、滤波,以及设计优化信息设备的电源.     

液罐汽车转弯制动稳定性的研究

该文研究罐装部分液体汽车在转弯制动工况下，由于液体货物质心位置的变化对行驶稳 定性的影响。文中建立了有关力学模型和数学模型，分析研究了罐体内装载不同量液体对汽车转弯制动时横摆角速度的影响规律。     

精益六西格玛的有效实施

精益六西格玛管理是一项以顾客为中心、以数据为基础,以追求近乎完美为目标的管理理念和方法。该文从实际管理经验出发,提出了管理理念、实施范围、员工稳定以及总结复盘等结论,并特别阐明了精益六西格玛和ISO9001的关系;最后描述了理想的精益六西格玛的管理者形象。     

LDO降压转换器的稳定性分析

通过对LDO降压转换器的原理分析，并借助频域的傅里叶分析方法，对其稳定性和频率响应进行了深入的理论研究，得到了提高系统稳定性的补偿方法。频率响应和瞬态响应的仿真结果表明，这种方法显著改善了LDO降压转换器的频率响应，并极大地提高了其稳定性。     

Enhanced storage/operation stability of small molecule organic photovoltaics using graphene oxide interfacial layer

Graphene and graphene oxide (GO) have been applied in flexible organic electronic devices with enhanced efficiency of polymeric photovoltaic (OPV) devices. In this work, we demonstrate that storage/operation stability of OPV can be substantially enhanced by spin-coating a GO buffer layer on ITO without any further treatment. With a 2 nm GO buffer layer, the power conversion efficiency (PCE) of a standard copper phthalocyanine (CuPc)/fullerene (C₆₀) based OPV device shows about 30% enhancement from 1.5% to 1.9%. More importantly, while the PCE of the standard device drop to 1/1000 of its original value after 60-days of operation-storage cycles; those of GO-buffered device maintained 84% of initial PCE even after 132-days. Atomic force microscopy studies show that CuPc forms larger crystallites on the GO-buffered ITO substrate leading to better optical absorption and thus photon utilization. Stability enhancement is attributed to the diffusion barrier of the GO layer which slow down diffusion of oxygen species from ITO to the active layers.     

栀子蓝色素稳定性的研究

研究了栀子蓝色素的热稳定性，光稳定性，耐氧化还原性和ｐＨ值稳定性，并就食品中常见的几种金属离子：Ｆｅ３＋、Ｆｅ２＋、Ｋ＋、Ｎａ＋、Ｚｎ２＋、Ｍｇ２＋、Ｃｕ２＋、Ａｌ３＋和常用添加剂对蓝色素稳定性的影响进行了探讨。结果表明，该色素性能优良，具有广阔的开发应用前景。     

High performance black-to-transmissive electrochromic device with panchromatic absorption based on TiO2-supported viologen and triphenylamine derivatives

A novel black-to-transmissive electrochromic device based on TiO₂-supported viologen and triphenylamine derivatives was designed and constructed via the absorption-complementary approach. In the device, cathodically coloring electrochromic material 1,4-bis[((N-phosphono-2-ethyl)-4,4′-bipyridinium)-methyl]-benzene tetrachloride acted as working electrode and novel anodically coloring electrochromic material (4-((4-(dimethylamino)-phenyl)(4-methoxyphenyl)-amino)-benzyl) phosphonic acid acted as counter electrode. The assembled electrochromic device achieved panchromatic absorption over entire visible spectrum with almost zero transmittance in colored state. The optical contrast (ΔT) of the device realized in this work was comparable to the highest value (60%) among all reported black-to-transmissive ECDs. Furthermore, excellent cycling stability was achieved, which maintained almost 80% of the initial ΔT value at 570 nm after continuous 100,000 switchings. These outstanding comprehensive electrochromic performances potentially make this device a promising candidate for electrochromic device applications.