江苏省地震前方指挥车应急数据信息通信方式的实现

前方指挥车是在有地震灾害事件发生时,能够立即响应,并快速到达地震震中所在地,立即开展现场信息汇集与共享、地震灾情动态评估和修正、辅助决策建议及时生成、现场资源调度和管理,实现前方指挥部与现场工作人员、国家指挥部、区域指挥部的不同应用系统之间的数据信息的共享和传递.本文主要介绍前方指挥车两种不同应急通信方式,并讨论各自的优缺点.     

基于图像处理的金相分析系统研究

在图像研究的基础上,以数学形态学算法为关键步骤,研究开发金相图像分析系统,从噪声较为复杂的金相图像中有效地分割出目标图像,较好地处理晶粒粘连以及重叠问题,从而得到较高准确度的晶粒度。实践结果表明,本系统具有一定的准确度,界面友好,易于操作。     

基于Android的校园报警平台的设计与实现

普通的报警电话存在拨号时间长、隐蔽性差、定位难等缺点。本系统通过Android手机的一键触发就可将所需的报警信息发送出去;也可以把照片、文字描述等提交给服务器。具有安全、易用的特点。     

基于MapXtreme的B/S体系结构模型的设计与实现

基于J2EE机制,结合最新的构件技术和基于构件的开发体系结构,设计了一种分层的基于MapXtreme的B／S体系结构模型,并且按该模型结构开发和实现了武汉WebGIS的应用系统。     

基于Surpac的金昌石墨矿露天转地下优化设计

以金昌石墨矿为研究对象,建立矿体的地表模型、矿体模型和块体模型,并对矿体进行储量估算和品位报告。详细总结了该矿山露天转地下开拓方案和开采方案,论证了Surpac软件的技术优势和应用前景。     

基于GAP技术的地震信息网络系统改造方案

江苏省地震信息网络系统是全省区域地震数据传输、数据交换、数据存储及信息服务的统一平台。针对网络系统目前存在的问题,提出了改造方案,即通过使用隔离网闸将业务传输系统和互连网进行物理隔离,升级网络关键设备和链路带宽,增加网络安全设备等技术手段,使网络系统达到了安全、稳定运行的目标,既满足了地震信息数据传输、交换、存储及多元化应用等的需求,又符合信息系统三级安全管理要求,可以为地震行业信息网络系统优化建设提供有益参考。     

A nanoparticle formation model considering layered motion based on an electrical explosion experiment with AI wires

To study the evolution of nanoparticles during Al wire electrical explosion,a nanoparticle formation model that considered layered motion was developed,and an experimental system was set up to carry out electrical explosion experiments using 0.1 mm and 0.2 mm Al wires.The characteristic parameters and evolution process during the formation of nanoparticles were calculated and analyzed.The results show that the maximum velocities of the innermost and outermost layers are about 1200 m·s^-1     

新疆哈图金矿容矿构造特征及勘探方向

哈图金矿的容矿构造以NW,近EW向断裂为主。矿体多赋存于大的断裂之中,或断裂的交汇部、转折部、膨大部等做为今后的勘探方向。     

Effect of shock wave formation on propellant ignition in capillary discharge

In order to study the effect of shock wave formation on propellant ignition in capillary discharge, the shock wave formation process was analyzed using experimental and theoretical methods; the plasma jet temperature was measured, and closed bomb and 30 mm gun experiments were carried out. The results show that the first shock wave has a smaller value and larger range of influence, while the second shock wave has a larger value and smaller range of influence. A plasma jet can generate a shock wave at the nozzle according to the calculated plasma pressure and velocity, which is well confirmed by experiments and calculations. The plasma jet temperature is high during the formation of a shock wave and then decreases sharply. Plasma ignition can increase the burning rate of a propellant by about 30% by increasing the burning surface area of the propellant. Compared to conventional ignition, the average maximum chamber pressure and average muzzle velocity of plasma ignition are increased by 9.1 MPa and 29.3 m·s−1(∼3%), respectively, in a 30 mm gun. Plasma ignition has strong ignition ability and short ignition delay time due to the generation of a shock wave. By increasing the burning rate of the propellant, the muzzle velocity can be greatly improved when the maximum chamber pressure increases a little. The characteristics of the shock wave can be applied in the application of the capillary discharge plasma. For example, it can be applied in fusion, launching and combustion.     

基于统计学的A2/O工艺脱氮效果诊断及响应面法参数优化

以新疆乌鲁木齐市某污水处理厂二期提标改造A2/O工艺为研究对象,通过监测数据及现场观察分析了该工艺试运行过程中脱氮效果不稳定、出水TN浓度难以达到GB 18918—2002一级A排放标准的影响因素.结果表明,生化反应池微生物活性不够、混合液悬浮固体浓度低、污泥龄短、pH较高、缺氧环境差、回流液中溶解氧浓度高等是主要原因...