技术工作

With the development of IT,the IT intra-industry will have higher demand about the software quality.this will absolutely attach importance to test of software.with the IT research and development and instrument,accompanying software engneering and software engneering practices further promotion,software test will be gotten more attention and specialized.the instruments will increase the progress of test,also can put the control and administration into the process of test.under the help of funtional test of data-driven of automatic test intruments,we can increase the coverage of the test,also can save more time and capital for corporations.because of continuous improvement of the process of software development,the continuous software integraton and automation of software test will be absolutely inevitable,also have more and more effects.different technology and research and development circumstances will have different requirements about how to automatize,so it hase more space deserved to research.

随着信息技术的不段发展，行业内对软件的质量要求越来越高，这必然引起对测试工作的重视，随着软件开发技术和工具的提高，软件工程和软件工程实践的推广，软件测试日益得到重视和专业化。工具能够加快测试的进度，可以把控制和管理引入整个测试过程。通过对自动化测试工具的数据驱动来进行功能性的测试，可以提高测试的覆盖率，并且可以为企业节省大量的时间和资金。因为软件开发过程的持续改进，软件项目的持续集成与测试自动化的发展是必然的，其作用也将越来越明显。不同的技术和开发环境对测试如何自动化有不同的要求，所以还有很多值得研究的地方。

ABSTRACT : Objective To bring into the effect of information technology on drug evaluation and furthermore to build the information system platform of drug evaluation.

目的发挥信息技术在药品技术审评工作中的作用，构建药品技术评价信息化平台。

The phytoplasmas diseases were investigated in 30 counties and cities of 10 areas in Yunnan Province. There are 12 phytoplasma diseases, including paulownia witches-broom,chinaberry witches-broom, cactus witches-broom, christmas cactus witches-broom, orange little leaf, petunia flat stem and so on were indentified using PCR with universal primers, which amplified phytoplasma 16SrRNA gene and/or ribosomal protein genes. So the kind of phytoplasma diseases in Yunnnan Province were understood. Identified the characteristic of 16SrRNA and rp gene of phytoplasma and the kind, classification and genitic relativity of these strains using RFLP, clonging and sequence analysis (nearly 20 full-length sequences of phytoplasma 16SrRNA and/or rp gene were submitted in GenBank ); The phytoplasma strains isolated from herbage plants were conserved in storeroom. 9 articles were published in the key journals of China and 1 technique invention patent was applied. The net-page about phytoplasma disease was established. 4 graduate student were bringed up.

对云南省10个地区的30余个县市地区进行了植原体病害的调查采集工作；采用植原体16SrRNA基因通用引物（R16mF2/R16mR1及R16F2/R16R2）和/或植原体核糖体蛋白基因引物（rpF1/R1）对所采集到的病害标样总DNA进行PCR扩增，根据植原体特异扩增条带的出现，共鉴定出泡桐丛枝、苦楝丛枝、仙人掌丛枝、蟹爪兰丛枝、柑桔小叶、矮牵牛扁茎等12种植原体病害，初步明确了云南省植原体病害的种类；通过RFLP技术、克隆及测序技术获得其16SrRNA及部分核糖体蛋白基因的近全长序列（已在GenBank中共登录近20余个相关序列），通过序列比较分析，明确了上述植原体株系中这两个基因的特征并确定了云南省植原体株系的种类、分类地位及遗传相关性；对一些发生在草本植物上的植原体进行了株系保存；在国内核心期刊及一般期刊发表研究论文 9 篇，申请技术发明专利1项；初步建立了有关植原体病害的网页；培养研究生4名。

The main job and contribution of this paper are as follows:Based on narrowband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, compute the cross-correlation function of FH signals from multichannels, then we get the cross power spectral density matrixCSDM Secondly, select the hops of FH signals from the CSDM via processing and analyzing the CSDM, meanwhile reduce the influence coming from noise, fixed frequency signal and other interferences; Lastly, estimating the DOA of every hop and according to the DOA, we can separate the hops, get the number of FH signals and their parameters. Propose a new method for designing the threshold in FH signal detection. This method makes it easy to get the threshold by theoretic computing and it can extremely reduce the interference of non-FH signals.Based on broadband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, get the DOA of the signals by wideband spatial spectrum estimation; secondly, separate the signals by spatial filtering using wideband beamformer; Lastly, we propose two methods for FH signal blind detection and blind parameter estimation, one is for several constant hop-rate FH signals whose dwell-time are different and another is for a single FH signal whose hop-rate is alterable.By employing spatial interpolation in broadband signal beamforming, it can reduce the number of antenna elements and corresponding RF modules, A/D converters, etc. It can also eliminate the mutual coupling between antenna elements while getting the narrower main beamwidth and lower sidelobe level.

本文的主要研究工作和贡献如下：●提出了一种基于窄带处理的FH信号盲检测和参数盲估计的实现方法，即首先求出多路信号之间的互相关，进而得到互功率谱密度矩阵，然后通过对CSDM进行对折处理来抑制噪声、定频信号及其他干扰的影响，并将所有属于FH信号的hop(每一跳的驻留时间在时频图上持续的线段)从CSDM中筛选出来，最后用阵列信号处理中的到达方向估计理论在频域中估计出各个hop的方向参数，利用方位信息完成FH信号分离并得到FH信号的数目及其各自的参数集；●提出了一种确定FH信号检测门限的策略，该策略不仅使得检测门限能够通过理论计算得到，而且还显著地抑制了非跳频信号的干扰，从而能有效地检测出FH信号；●提出了一种基于宽带处理的短波FH信号盲检测和参数盲估计的实现方法，即首先利用宽带空间谱测向技术得到接收信号的DOA，然后采用宽带波束形成技术对特定方向进行空间滤波，实现多个信号的分离，最后分别提出了两种FH信号的盲检测和参数盲估计方法，第一种方法适用于空间某个特定方向上存在着几个驻留时间不同的恒跳速FH信号和其他干扰信号的混合信号，第二种方法适用于空间某个特定方向上仅含一个可变跳速的FH信号和噪声的混合信号；●将空间插值的概念和宽带波束形成技术结合起来，提出了一种基于频域处理的宽带恒定束宽的波束形成方法。

Secondly, the platform of IPTV set-top box named DM6446 is introduced, and then the AVS video coding standard which is implemented as the video coding standard of IPTV is introduced. The kernel architecture, peripheral devices of DM6446 and the key technique of AVS video coding such as transformation, quantization, intra-prediction, inter-prediction, interpolation, and loop filter is introduced in detail. Thirdly, the system procedures of set-top box which are implemented on the ARM side of DM6446 are introduced in detail. This part focuses on the demultiplex of audio and video data, the design of data interface, the playback of audio and video, and the communication between ARM and DSP. Fourthly, the loop filter algorithm of AVS video coding standard is introduced in full detail, and the optimized procedures of the algorithm on the DSP side of DM6446 are introduced, and then the optimized results are presented. Fifthly, the thesis introduces and analyzes the state-of-art technique of deblocking filter, and proposes a deblocking method, and then the results of proposed method are given. Finally, summarize of this thesis and further development is given.

首先对IPTV技术、视频编解码技术以及去块滤波技术做了简要介绍；然后介绍了IPTV机顶盒的实现平台DM6446，并介绍了该处理器的外围接口和内核结构，同时介绍了作为本IPTV系统视频标准的AVS第二部分视频标准，以及该标准中变换量化、帧内预测、帧间预测、插值和环路滤波等多个模块的算法；接着，详细介绍了机顶盒系统相应程序在DM6446 ARM核上的实现，重点介绍了音视频系统码流的解复用、数据接口设计、音视频的播放以及ARM核与DSP核之间的通信；然后，详细介绍了AVS视频标准中环路滤波算法及该算法在DM6446 C64+内核上的优化，并给出优化结果；然后对去块滤波算法进行了研究并提出了一种环路滤波方案，同时给出了此方案的实验结果；最后总结了本文的工作，并提出了可以改进的方向。

Beijing Institute of Technology, Beijing 100081,ChinaIn order to get the high output power, a RF excited diffusively cooled all-metal slab waveguide CO2 laser was reported, in which gas discharge region was constructed by two aluminum side walls and aluminum electrodes. The region dimension was 2 mm height×20 mm width×386 mm length, and the gas composition was CO2:N2:He:Xe=1:1:3:0.26. This technique replaced the old ceramic and metal sandwich waveguide technique.The optimum out power 127 W was achieved from the RF excited diffusively cooled all-metal slab waveguide CO2 laser with the longitudinal voltage uniformity distribution technique and scaling area technique. The electro-optic conversion efficiency was about 14%.

为了获得较高的激光输出功率，介绍了射频激励扩散冷却全金属板条波导CO2激光器，放电区域由左右两个铝合金壁和上下两个铝合金电极构成，放电区域高2 mm，宽20 mm，长386 mm，工作气体混合比CO2：N2：He：Xe=1：1：3：0.26，该技术代替了过去的金属陶瓷结构，结合纵向电压均匀分布技术和面增比技术，获得了127 W的激光输出功率，光电转换效率高达14%。

After Using the off-line data sampling technology and simultaneous lock, parallel A/D convert technology, the time discrimination ratio was decreased to a duration of 0.83μS. The color adjustment panel and unfactual page exchange technology was used to show arc moving procedure in the software design.

采用硬件时序电路控制数据采集过程、同步锁存和并行模数转换等硬件技术大大地提高了测试过程的时间分辨率；软件设计中，采用调色板技术实现图象的灰度显示，采用虚拟页切换技术实现电弧运动过程的动画显示；采取软硬件结合的办法，可随意改变传感器阵列在二维平面的排列形状和疏密程度，这可以扩大电弧研究工作中测试系统的适用范围。

The technical plan in the research on hand tractor attached driving disk plow is expounded with function analysis system technique.

本文从人－机－环境系统出发，综合分析了诸因素之间的内在联系，应用功能系统分析技术，阐述了手扶拖拉机配套驱动式圆盘犁研究过程中有关技术方案，分析了工作偏角α，机组侧向力的平衡、前后圆盘耕深一致等关键技术。

And with the help of research work above mentioned, maintenance management for dredger will be changed over from Time Based Maintenance to Condition Based Maintenance.

本文的研究工作对提高挖泥船泥泵的技术管理水平具有十分重要意义，为对挖泥船泥泵的技术管理方式由定期维修到视情维修的转变提供了技术手段。

Having above 3 years test or design experiences in electrical products. Such as oven, ice cream refrigerator, meat slice, water boiler, rice cooker, etc.2. Solid skills in safety testing knowledge in IEC/EN or UL standards.3. Ability for test Lab and equipment development, improvement and instrument/equipment calibration, familiar with ISO/IEC 17025. 4. Working experience in buying office or knowledge of refrigerating theory is in advantage. 5. Good team work, and can work under pressure

工作经验：1、最少三年以上电器类产品测试及设计工作经验，如烤箱、冰箱、搅肉机，制冰机及电饭煲等。2、要求对安规标准IEC/EN及UL等知识非常熟悉。3、具有实验室测试及设备改良及更新经验，了解常用测试设备的检验标准及方法，熟悉ISO/IEC17025.4、具有外资采购中心的工作验及了解冰箱技术原理的人才将优先考虑。5、优秀的团队合作精神，能在压力下工作。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐