A high quality ETL process is the key point to construct data warehouse.

Design and Implementation of ETL Subsystem in Telecommunications Operation Analysis System

电信经营分析系统中抽取转换子系统的设计与实现

An ETL model based on business is designed.

设计了一个基于业务的ETL模型。

Study and design of ETL based on Telecom Data Warehouse

基于电信数据仓库系统的ETL研究与设计

The Application of ETL Technology in Operation Analysis System

ETL技术在电信经营分析项目中的应用

ETL is one step of the data warehouse building.

ETL是数据仓库建设的一个步骤。

Accounting for the bulk-wave effects in SAW devices, it introduces the BAW excitation theory on IDT.

针对声表面波器件中体波效应的影响，介绍了叉指换能器激发声体波的机理。

Frequency response character of BAW fits well with the simulation result.

测量的体声波谐振器频率特性曲线与模拟结果吻合的较好。

Octave Band BAW Microwave Delay Line

倍频程宽带声体波微波延迟线

This paper mainly presents the structure, fabrication, principal properties and applications of the chip BAW devices and SAW devices newly produced in Japan.

本文主要介绍日本新近生产的几种片式体声波（BAW）器件和声表面波（SAW）器件的结构、制法，及其主要性能和应用。

BAW Microwave Delay Line in 18~ 22GHz

18～20GHz体声波微波延迟线

The piezoelectric bulk acoustic wave ( BAW) impedance analysis method was employed to monitor in situ acetylcholinesterase-catalyzed hydrolyzation of acetylcholine and the effect of methamidophos insecticide on the enzyme activity.

采用压电体声波阻抗分析法实时动态监测了乙酰胆碱酯酶对乙酰胆碱的酶促水解过程及农药甲胺磷对酶活性的影响。

Analytic approximation method is introduced in the chapter five and we make an adjustment of BAW formula.

第五章介绍美式期权的近似解析解，并在著名的BAW公式上进行修正，得出新的公式并进行数值试验。

Application Foreground of Transformer Inductive Filtering Technology BAW Study on Growth Kinetics of Synergistic Films of Benzotriazole ( BTA) and Halide Ion

变压器感应滤波技术的发展现状与应用前景卤素离子与苯骈三氮唑协同成膜动力学的体声波传感技术研究

Based on the fundmental principle of airborne radar calibration, this paper puts forward a new static active method to calibrate range and angle errors of an airborne radar with Bulk Acoustic Wave ( BAW) located on ground.

根据机载雷达标校的基本原理，提出了基于声体波延迟线的某型机载雷达距离方位误差的地面静态有源校准方法。

Traditionally, ZnO is used in acoustic wave devices ( SAW), bulk acoustic devices ( BAW), Gas sensors, varistors, transparent electrodes and so on.

传统上，ZnO薄膜被广泛应用于声表面波器件，体声波器件、气敏传感器、压敏电阻、透明导电电极等。

Based of BAW formula, we elicit a new approximation formula.

本文就在BAW公式的基础上，修正了BAW公式，利用微分方程的解法，得出新的近似解析解的计算公式。

Study of BAW resonator using technology of NbN AlN

基于NbN，AlN技术的体声波器件研究

The experimental results confirm that the insertion loss, BAW suppression, passband ripples and receiving loss of the wavelet reconstruction device using the new scheme are remarkably improved using early schemes.

实验结果表明，用新方案实现的小波重构器件比用早期方案实现的小波重构器件在插入损耗、体声波抑制、通带波纹和接收损耗方面均有明显的改善。

The properties and fabrications of some major materials for FBAR such as AlN, ZnO, PZT are introduced systematically, and the structures, devices design and applications of BAW filters are discussed as well.

系统介绍了用于薄膜体声波谐振器的几种主要材料（AlN、ZnO、PZT）的具体特点、制备工艺及薄膜体声波谐振器与滤波器的结构、设计及其应用。

This paper briefly reviewes the recent progress of VHF/ UHF crystal filter, the characters of VHF/ UHF resonator and the performances of VHF/ UHF crys-tal filter, and makes a comparison between BAW crystal filter and SAW resonator filter.

简要评述了近几年来VHF/UHF晶体滤波器的进展，讨论了VHF/UHF谐振器的特点、VHF/UHF晶体滤波器的性能，以及SAW晶体滤波器和谐振器性能的比较。