固体铝电解电容器用导电高分子制备工艺进展

依据近年的相关专利,综述了用于固体铝电解电容器的导电高分子的最新制备工艺,介绍了导电高分子固体铝电解电容器的结构,详细描述了制备导电高分子的两种主要方法——化学聚合和电化学聚合——及其进展历程。介绍了新颖掺杂剂的发现与使用,对各种工艺的特点进行了评述。     

AIRS/Vis near IR instrument

A component of the Atmospheric Infrared Sounder (AIRS) instrument system is the AIRS/Visible Near InfraRed (Vis/NIR) instrument. With a nadir ground resolution of 2.28 km and four channels, the Vis/NIR instrument provides diagnostic support to the infrared retrievals from the AIRS instrument and several research products, including surface solar flux studies. The AIRS Vis/NIR is composed of three narrowband (channel 1: 0.40-0.44 /spl mu/m; channel 2: 0.58-0.68 /spl mu/m, and channel 3: 0.71-0.92 /spl mu/m) and one broadband (channel 4: 0.49-0.94 /spl mu/m) channel, each a linear detector array of nine pixels. It is calibrated onboard with three tungsten lamps. Vicarious calibrations using ground targets of known reflectance and a cross-calibration with the Moderate Resolution Imaging Spectroradiometer (MODIS) augment the onboard calibration. One of AIRS Vis/NIR's principal supporting functions is the detection of low clouds to flag these conditions for atmospheric temperature retrievals. Once clouds are detected, a cloud height index is obtained based on the ratio (channel 2 - channel 3)/channel 1 that is sensitive to the partitioning of water vapor absorption above and below clouds. The determination of the surface solar radiation flux is principally based on channel 4 broadband measurements and the well-established relationship between top-of-the atmosphere (broadband) radiance and the surface irradiance.     

Injection-locked Fabry-Pe/spl acute/rot laser with electronic feedback for clock recovery from high-speed OTDM signals

We demonstrate the use of an injection-locked Fabry-Pe/spl acute/rot laser diode with electronic feedback for base-rate clock recovery in N/spl times/10 Gb/s optical time-division-multiplexing (OTDM) systems. Injection-locking enhances the resonance frequency of the laser and the electrical feedback achieves strong resonance at the base-rate frequency of the injected data streams, enabling ultrastable electrical clock signal generation at the base rate of 10 GHz. Experimental demonstrations for clock recovery at 10 GHz from 40-Gb/s OTDM data streams and 4-1 demultiplexing of the data using the extracted clock after fiber transmission is presented. The timing jitter measured in the recovered electrical clock is less than 0.25 ps.     

3G网络中的IPv6 DNS服务器配置

说明了3G网络中IPv6递归DNS服务器地址配置的三种方法：路由器通告（RA）方案，DHCPv6方案，递归域名系统（DNS）服务器的公认任播地址方案，详细地说明了三种解决方案的操作特点。本文为3G中选择合适的方法进行主机DNS配置提供了指导。     

dU/dt引发的MOSFET误导通分析

分析了MOSFET误导通产生的原因,分别从原理和理论推导两个方面作了分析,主要考虑了开关管中寄生参数对开关特性的影响。通过求解误导通发生的条件,得到哪些参数会导致误触发,最后给出了仿真。文中还提出如何避免MOSFET误导通产生,以及改进方法,对减少实际应用中MOSFET破坏性损坏有一定意义。     

High Power Fiber Bundle Array Coupled LDA Module

1 Introduction High power laser diode arrays (LDA) have many advan- tages such as small volume, long working life, high slope efficiency and high optical density, so they have many applications in medical treatment, material pro- cessing, and for the pumping source of solid laser and etc. But unfortunately, the LDA can not be easy to use directly in these fields because of their poor beam quality and extremely asymmetric divergent beams (!x≈ 5°～10°and !y≈20°～35°, for example), so it …     

Laterally coupled buried heterostructure high-Q ring resonators

All-buried InP-InGaAsP ring resonators laterally coupled to bus waveguides are demonstrated. The buried configurations offer a lower built-in refractive index step along the resonator periphery, which affords enhanced optical coupling coefficients between the waveguides and reduced scattering losses caused by the resonator sidewall imperfections. Very low optical intensity attenuations of 0.4 cm/sup -1/ and coupling-limited quality factors of greater than 10/sup 5/ are observed from 200-/spl mu/m-radii ring resonators. The measured spectral linewidth is as narrow as 0.0145 nm.     

基于循环前缀的单载波直接序列扩频技术(CP/CDMA)

介绍了下行链路中基于循环前缀的单载波直接序列扩频技术(CP/CDMA)。这种技术结合了多载波系统中的循环前缀和频域均衡,具有较低的复杂度。同时保留了单载波系统发射端复杂度低的优点。在时变信道中,利用基于辅助数据的信道估计方法,即每隔一定帧数的数据帧发送一帧训练序列来估计信道。在仿真中使用了信道编码。     

电信运营企业项目融资初探

通过对电信运营企业多渠道融资的必要性的阐述，论证了项目融资是电信运营企业可选的一种融资方式，并有针对性地提出了电信运营企业实施项目融资的模式及应注意的问题。     

基于LotusNotes的文档ID应用剖析

介绍了文档数据库Lotus Domino／Notes的特点．对其文档处理的核心，即Notes文档的ID构成机制作了系统剖析．并在此基础上分析了如何在文档复制中运用ID的不同组件以及如何运用API程序访问文档ID等。