适用于高速长途DWDM系统的色散管理线路

对于高速长途密集波分复用（DWDM）传输，必需采用各种各样的色散补偿、色散管理技术，其中，交替使用正负色散光纤构成色散管理线路（DML）是可行的解决方案之一，在国际上已经取得显著进展，正成为人们关注的焦点，国内在这方面的研究报道还少见.文章以高速长途DWDM系统对传输线路的性能要求为基础，综述了有代表性的3种不同类型的DML的特点和最新进展。     

Model-based automated extraction of microtubules from electron tomography volume.

We propose a model-based automated approach to extracting microtubules from noisy electron tomography volume. Our approach consists of volume enhancement, microtubule localization, and boundary segmentation to exploit the unique geometric and photometric properties of microtubules. The enhancement starts with an anisotropic invariant wavelet transform to enhance the microtubules globally, followed by a three-dimensional (3-D) tube-enhancing filter based on Weingarten matrix to further accentuate the tubular structures locally. The enhancement ends with a modified coherence-enhancing diffusion to complete the interruptions along the microtubules. The microtubules are then localized with a centerline extraction algorithm adapted for tubular objects. To perform segmentation, we novelly modify and extend active shape model method. We first use 3-D local surface enhancement to characterize the microtubule boundary and improve shape searching by relating the boundary strength with the weight matrix of the searching error. We then integrate the active shape model with Kalman filtering to utilize the longitudinal smoothness along the microtubules. The segmentation improved in this way is robust against missing boundaries and outliers that are often present in the tomography volume. Experimental results demonstrate that our automated method produces results close to those by manual process and uses only a fraction of the time of the latter.     

Modular and rapid testing of SOCs with unwrapped logic blocks

Extensive research has been carried out for test planning of core-based system-on-a-chip devices. Most of the prior work assumes that all of the embedded cores are wrapped for test purpose. However, some designs may contain user-defined logic or cores that cannot be wrapped due to area constraints or timing violations. This paper discusses how these unwrapped logic blocks can be tested rapidly by adapting the TestRail architecture, which uses only the test control mechanism and the test instructions available through the IEEE 1500 standard for embedded core test. A new test scheduling algorithm, which facilitates a concurrent test of both unwrapped logic blocks and IEEE 1500-wrapped cores, is proposed, and experiments show that it outperforms a previous approach when the available number of tester channels and/or the number of unwrapped logic blocks are small.     

粗甲醇在内燃机上的清洁高效使用

在内燃机排气废热的作用下。液体粗甲醇加压汽化后引入裂解器催化分解为富氢混合气，在上止点附近喷入气缸，发动机采用米勒循环，其功率与效率优于同等结构奥托发动机。     

一维弹道修正模块设计与仿真

简要介绍了一种用于维弹道修正引信的执行机构。通过数学模型，结合MDT三机械设计软件和Working Model动力学仿真软件，对机构的受力情况和工作过程进行了数字仿真和系统分析，并通过对飞行弹道的模拟，得出了一维时间控制射程修正规律。     

p型碲镉汞液相外延材料Ag掺杂的研究

利用SIMS和变温霍尔测量手段对P型Hg0.77Gd0.23Te液相外延材料的Ag掺杂技术、机理及掺杂碲镉汞材料的性能进行了研究。结果表明采用AgNO3溶液直接浸泡方式对该材料进行掺Ag是成功的，掺杂浓度与被掺杂材料中的汞空位浓度是一致的，掺杂后，P型碲镉汞材料的受主能级比掺杂前有明显的减小，从实验结果可看到掺Ag碲镉汞材料的电学性能在室温下保持稳定。     

基于泛布尔代数的结构振动控制机理

本文介绍了泛布尔代数的数学模型、公理体系和化简方法 ;针对高层建筑的特点 ,舍弃寻求被控制对象的精确数学模型 ,提出了“基于泛布尔代数的结构振动控制” ,分析了其的逻辑机理 ,建立了基于泛布尔代数的MR阻尼器的半主动控制算法。应用本文提出的控制方针对 12层的高层结构受控地震反应的模拟仿真 ,结果表明其控制简单、灵活、方便 ,能满足这种结构的控制要求。     

线路故障位置对暂态稳定性的异常影响及其机理

发现稳定裕度除了随线路上的故障位置单调增加、单调减小、凸状变化外，还可能呈现凹状分布的形态。通过扩展等面积准则（EEAC）理论揭示其机理，以解析方式得到稳定裕度随故障位置凹状变化的条件，并在多机系统的仿真中验证了稳定裕度随故障位置的异常变化形式。该现象的发现和剖析不但有利于深入理解电力系统暂态稳定性的物理本质，也对工程分析提出了新的注意点。     

进口VPSA制氧装置的流程特点及配置

详细介绍了进口的VPSA制氧装置的流程特点、工艺参数及主要设备的配置。实际运转证明 ,该制氧装置具有运行可靠、启动时间短、部分负荷性能优越、负荷转换速度快等优点 ,能满足金隆铜业有限公司的实际生产要求。