查询词典 pattern identification

The holistic design of the system and resolved the designs of software and hardware based on VXI bus are put forward according to the demand of test system. The hardware and software is designed, including the formation and design of hardware system, visual instrument software architecture, program design for instrument driver, high speed real-time data collection. In the dynamic test program, the idea of"software is instrument"was applied to meet the diverse test demands. Last, it is proposed that the VXI test system be developed to more totalization and networked. The basic theory of system identification was introduced briefly at first. The principle of spectrum analysis system identification based on Wiener-Hopf equation was expatiated. and the questions in applying Peusdo Random signal as spectrum analysis methods stimulate signal was studied, The generation principle of the peusdo random signal is researched, the characteristic of peusdo random are analyzed from time domain and frequency domain, the inverse repeat peusdo random signal is brought forward to make up the shortage of ordinary peusdo random signal. And a new chaos genetic algorithmis presented to solve the unprecise problem of the traditional method. In the servo valve dynamic characteristic test system, the spectrum analysis methods was applied successfully, the servo valve dynamic characteristic could be acquired rapidly and exactly, the test results were analyzed and the ameliorate methods were brought forward at last.

结合航天某集团液压测试中心测试系统的需求，提出了基于VXI总线的液压测试系统的整体设计方案，完成了测试系统的硬件设计与软件设计，包括硬件系统构成与设计、虚拟仪器软件结构、仪器驱动程序设计、高速同步实时数据采集等内容；以伺服阀动态特性测试为例设计了测试模块，该模块体现了VXI总线仪器软件开发所倡导的"虚拟仪器"的思想，以软件的灵活应用满足了不同的测试需求；结合自动测试系统的发展，研究了VXI测试系统与网络技术结合，实现各种软硬件资源共享，进一步提高设备及数据的利用率和系统的扩展性，使自动测试向综合化、网络化方向发展；研究了伪随机信号作为谱分析法辨识的激励信号时存在的问题，讨论了伪随机信号的产生机理，从频域和时域分析了伪随机信号的性质及其应用，提出了用逆重复伪随机信号弥补了普通伪随机信号的不足，并以混沌遗传算法对逆重复伪随机信号产生过程中的参数进行优化，可以更合理而不是凭经验产生需要的逆重复伪随机信号。

This paper proposed a new hierarchical speaker identification system based on Multi-Reduced Support Vector Machine and Principal Component Analysis classifier to reduce the recognition time of speaker identification.

提出一种基于主成分分析和多约简支持向量机的多级说话人辨识方法。

A zonal approach damage identification method is proposed for global identification of the concrete-filled steel tube arch bridge.

然后针对钢管混凝土拱桥的结构特点，提出了分区域的损伤识别方法。

All the compounds were isolated and identified from the bituminous coals for the first time, bis(2-ethylheptyl) terephthalate and 18-ethyl-17-(hexan-2\'-yl) docosanoic acid are new compounds.Further more, a Colourless Oil Liquid, a white acerate crystals containing some alkanes, a white tabular crystals consisting of some fatty acid esters and a white powder crystals in which some fatty acids exist were isolated and analysed by GC/MS for the first time.Through this research, a study method of"classification extract of bituminous coal- separation with silica-gel and gelatin column chromatographies- identification of the isolated compounds by FTIR, GC/MS, LC/MS, 1H NMR and 13C NMR analyses"was established and proved to be a practical approach toward separable and non-destructive identification of some organic compounds in bituminous coals for coal chemistry research.

本研究建立了&原煤分级萃取-硅胶与凝胶柱层析分离与纯化-GC/MS或LC/MS检测-FTIR、MS、1H NMR和13C NMR波谱解析&这一煤中有机化学成分的非破坏性分离与分析的研究方法，并验证该研究方法有效可行。

The application of Alit sequence in forensic genomics, include DNA quantitation, race determination, species and gender identification, personal identification, paternity testing and whole-genome amplification.

目前，Alu元件在法医DNA分析中的应用包括：DNA定量、种属鉴定、种族鉴定、性别鉴定、个体识别和亲子鉴定，以及全基因组扩增等。

This invention relates to one large size space coordinate measurement technique and device based on automatic visual guidance, which aims to provide one coordinate measurement and device and adopts the following scheme: altometer fulfills the points to be tested for automatic identification and measurement through variable cameral guidance to realize the large size space coordinate identification and fine measurement by each crossing constraints.

本发明的目的是提供一种基于自动视觉引导的大尺寸空间坐标测量方法及检测装置，该装置具有测量速度快、非接触、能在恶劣的环境中使用、较高的测量重复性特点，本发明采用的技术方案是，经纬仪通过可变焦摄像机的引导完成对被测点的自动识别及测量，由各经纬仪间的交汇约束实现大尺寸内空间坐标的自动识别及精密测量。

Objective To establish a molecular identification method for three cultivars of Amomum villosum Lour., thus to provide scientific evidence for the identification, selection and breeding of AVL.

建立阳春砂不同栽培品种的DNA分子鉴别方法，为阳春砂的优良品种选育提供依据。

RESULTS:In the Chenxiang Lubailu table,the identification of bismuthic salt positive result with dilute nitric acid instead of hydrochloric acid and the white precepitation formed in identification of magnesian was bismuth hydroxide sediments,it was easy and accurate to identify bismuthic salt by adding ascorbic acid.

结果：该片中的铋盐碘化钾鉴别反应，用稀硝酸代替盐酸做溶剂，呈正反应；镁盐氯化铵-磷酸氢二钠鉴别反应，加氨试液后，析出的白色沉淀不是Mg2，而是Bi3，该沉淀在氯化铵试液中不溶，干扰镁盐鉴别；铋盐含量测定项，用加抗坏血酸掩蔽剂的方法，排除Fe3+的干扰，使终点颜色稳定，易于准确判断。

Therefore, the ways to their separation and identification are different, except similar separation method for caproic acid bacteria and butyric acid bacteria and similar property identification method for acetic acid bacteria and lactobacillus, the other methods are quite different.

摘 要：着重研究粮食酒发酵中4类产酸菌的分离，其中己酸菌与丁酸菌同属梭状芽孢杆菌，为厌氧菌，醋酸菌为好氧菌，乳酸菌则微好氧，因此各自有不同的分离鉴定方法，其中己酸菌与丁酸菌分离方法相似，丁酸菌与乳酸菌的性能鉴定方法相似，其他则各有特色。

But alarms with a variety of other congenital dysplasia throat and trachea, such as laryngeal web, laryngeal cleft, tracheal Chondromalacia identification, etc., should also be noted that with a variety of acquired diseases such as throat inflammation, foreign body, trauma, such as phase identification.

但先天性喉鸣须与其他各种先天性喉及气管发育异常如喉蹼、喉裂、气管软骨软化等相鉴别，亦应注意与各种后天性喉部疾病如炎症、异物、外伤等相鉴别。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。