电动汽车充换电智能服务框架研究

电动汽车充换电服务是中国电动汽车产业大规模发展的基础,485总线、CAN总线、以太网、公众无线通信( GPRS/CDMA/TD-SCDMA/WCDMA/CDMA2000)等各种通信技术的融合是实现充换电智能服务的核心技术.分析了国内外电动汽车充换电智能服务技术现状,提出了一种以各类通信技术融合为核心的电动汽车充换电智能服务框架模型,描述了该服务体系能够为电动汽车用户提供的具体服务,并对该技术将来的发展进行了展望.     

Investigation of Coulomb scattering on sSi/Si0.5Ge0.5/sSOI quantum-well p-MOSFETs

sSi/Si_0.5Ge_0.5/sSOI quantum-well (QW) p-MOSFETs with HfO₂/TiN gate stack were fabricated and characterized. According to the low temperature experimental results, carrier mobility of the strained Si_0.5Ge_0.5 QW p-MOSFET was mainly governed by phonon scattering from 300 to 150 K and Coulomb scattering below 150 K, respectively. Coulomb scattering was intensified by the accumulated inversion charges in the Si cap layer of this Si/SiGe heterostructure, which led to a degradation of carrier mobility in the SiGe channel, especially at low temperature.     

一种引入内容控制模块的改进PCC架构模型

现有移动通信的策略与计费控制(PCC)架构无法完全满足数据业务精细化运营管理的要求。为了提升对数据业务内容的控制能力,提出了对现有策略与计费规则功能单元(PCRF）进行扩充,追加内容控制模块CCRF(Content Control Rules Function）来改进传统PCC架构的设想。通过广东移动一个实验性CCRF实施案例可以看出,改进后的PCC架构有可能进一步改善移动运营商在数据业务内容管理、客户体验和满意度管理,以及数据业务颗粒化营销、业务管控中心建设等领域的工作。     

浅谈高能量NiMH电池

为了解NiMH电池的工作特性，评价其在电动车辆上的使用性能，对NiMH电池进行了充电试验测试。基于实验结果，给出了NiMH电池的工作电压、工作电压下降率和温升等特性曲，并对这些特性进行了详细的研究和分析，同时也对NiMH电池单体在充放电过程中的一致性行了分析评价。摘．放线进     

一种太阳能供电LED照明系统电路设计

文章以太阳能供电的LED照明系统为研究对象,探讨了其基本构成,重点探讨了太阳能充电控制器的设计及其电路实现。设计了以PWM控制器CS51221为控制核心的充电控制器的电路,探讨了相关元器件参数的计算方法：分析了LED照明驱动系统的组成及其功能,设计了以NCP3066为核心的LED驱动电路、光敏二极管开关电路、PWM波调光电路;完成了简易太阳能供电LED照明系统电路的硬件,并对其功能及工作性能参数进行了测试和分析。结果表明,该LED照明系统满足设计要求,系统运行良好。     

An Instance-Learning-Based Intrusion-Detection System for Wireless Sensor Networks

This paper proposes an instance?learning?based intrusion?detection system (IL?IDS) for wireless sensor networks (WSNs). The goal of the proposed system is to detect routing attacks on a WSN. Taking an ...     

钢芯自动双发装压药技术

介绍大口径机枪弹钢芯双发全自动分步装压药生产线的组成和工作原理,对由于半成品一致性和药剂流散性造成的误差进行分析,并采用特制计量板装药技术进行装药,采用双发浮动压药技术进行压药,压药压力采用全数字双闭环反馈进行控制。长期使用结果表明,该技术能提高产品的质量和各项技术指标,实现安全可靠高效的全自动化生产,可广泛应用于国内多个弹种装压药生产。     

Solution‐Processed Nickel Oxide Hole Transport Layers in High Efficiency Polymer Photovoltaic Cells

The detailed characterization of solution‐derived nickel (II) oxide (NiO) hole‐transporting layer (HTL) films and their application in high efficiency organic photovoltaic (OPV) cells is reported. The NiO precursor solution is examined in situ to determine the chemical species present. Coordination complexes of monoethanolamine (MEA) with Ni in ethanol thermally decompose to form non‐stoichiometric NiO. Specifically, the [Ni(MEA)₂(OAc)]⁺ ion is found to be the most prevalent species in the precursor solution. The defect‐induced Ni³⁺ ion, which is present in non‐stoichiometric NiO and signifies the p‐type conduction of NiO, as well as the dipolar nickel oxyhydroxide (NiOOH) species are confirmed using X‐ray photoelectron spectroscopy. Bulk heterojunction (BHJ) solar cells with a polymer/fullerene photoactive layer blend composed of poly‐dithienogermole‐thienopyrrolodione (pDTG‐TPD) and [6,6]‐phenyl‐C71‐butyric acid methyl ester (PC₇₁BM) are fabricated using these solution‐processed NiO films. The resulting devices show an average power conversion efficiency (PCE) of 7.8%, which is a 15% improvement over devices utilizing a poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) HTL. The enhancement is due to the optical resonance in the solar cell and the hydrophobicity of NiO, which promotes a more homogeneous donor/acceptor morphology in the active layer at the NiO/BHJ interface. Finally, devices incorporating NiO as a HTL are more stable in air than devices using PEDOT:PSS.     

FAE战斗部爆炸威力评价方法的分析

在对 FAE的爆炸威力评价方法分析和应用的基本上 ,提出对 FAE战斗部爆炸威力评价的观点 :超压 -冲量毁伤准则是毁伤威力普遍适用的评价依据 ,但在国内外目前冲量测试误差较大的情况下 ,用一定条件下的超压 TNT当量评价 FAE战斗部威力 ,实际证明是可靠和实用的方法 .     

复合控制算法在榴弹螺旋装药中的应用

榴弹螺旋装药的压药压力控制系统中,采用开环补偿控制和闭环控制结合的复合控制.开环补偿控制根据扰动量直接产生相应的补偿,以抵消其影响.而闭环反馈控制则用于克服各种干扰和对控制效果最终检验.其PID控制采用位置算法,并对控制量输出和积分增量限幅.该算法在具体的项目中得到成功的应用.