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Trend

  • This code is Trend chart for realtime monitor

    This code is Trend chart for realtime monitor

    标签: realtime monitor chart Trend

    上传时间: 2015-07-12

    上传用户:lvzhr

  • 此文件为VC++开发环境下的OPC client Trend 源代码

    此文件为VC++开发环境下的OPC client Trend 源代码

    标签: client Trend OPC VC

    上传时间: 2015-10-04

    上传用户:源码3

  • The new Trend nowadays is Enterprise Java Beans(EJB). The book gives you an insight on what EJB is a

    The new Trend nowadays is Enterprise Java Beans(EJB). The book gives you an insight on what EJB is and how to use it.

    标签: Enterprise The EJB nowadays

    上传时间: 2013-12-19

    上传用户:cx111111

  • 机器视觉的现状及发展趋势 Machine Vision of the status quo and development Trend

    机器视觉的现状及发展趋势 Machine Vision of the status quo and development Trend

    标签: development Machine Vision status

    上传时间: 2013-12-25

    上传用户:yuzsu

  • Multiscale Trend Analysis

    Multiscale Trend Analysis

    标签: Multiscale Analysis Trend

    上传时间: 2017-08-26

    上传用户:hebmuljb

  • 传感器信号调节 - 用于信号调节的ADC

    The Trend in ADCs and DACs is toward higher speeds and higher resolutions atreduced power levels. Modern data converters generally operate on ±5V (dualsupply) or +5V (single supply). In fact, many new converters operate on a single +3Vsupply. This Trend has created a number of design and applications problems whichwere much less important in earlier data converters, where ±15V supplies and ±10Vinput ranges were the standard.

    标签: ADC 信号调节 传感器

    上传时间: 2013-11-16

    上传用户:sjw920325

  • 陶瓷输入电容可导致过压瞬变

      A recent Trend in the design of portable devices has beento use ceramic capacitors to filter DC/DC converter inputs.Ceramic capacitors are often chosen because of theirsmall size, low equivalent series resistance (ESR) and highRMS current capability. Also, recently, designers havebeen looking to ceramic capacitors due to shortages oftantalum capacitors.

    标签: 陶瓷 输入电容 过压

    上传时间: 2013-11-05

    上传用户:comer1123

  • 低噪声,低压差稳压器的性能验证

      In an increasing Trend, telecommunications, networking,audio and instrumentation require low noise power supplies.In particular, there is interest in low noise, lowdropout linear regulators (LDO). These components powernoise-sensitive circuitry, circuitry that contains noisesensitiveelements or both. Additionally, to conserve power,particularly in battery driven apparatus such as cellulartelephones, the regulators must operate with low input-tooutputvoltages.1 Devices presently becoming availablemeet these requirements (see separate section, “A Familyof 20mVRMS Noise, Low Dropout Regulators”).

    标签: 低噪声 低压差稳压器 性能

    上传时间: 2013-10-30

    上传用户:yeling1919

  • 基于IC卡的新型供暖计费系统设计

    将现行的供暖计费方式由按建筑面积计费变为按消耗的热能计费是供暖计费方式发展趋势,为了满足这一计费方式变化的需要,设计了基于IC卡的预付费式新型供暖计费系统,通过测量用户采暖系统进出口的温度和流量,计算用户消耗的热能,利用IC卡记录用户预付费的金额和当年热能的单价,根据热能消耗和当年热能的单价计算用户采暖费,根据实际发生的供暖费用和预付费金额控制供暖的开停,这一计费方式的变化使供暖计费更趋合理。 Abstract:  It is Trend that the mode of heat charging is changed from billing by building area to by thermal energy. In order to meet the needs of heat charging mode changing, a new system of heat charging based on IC card is proposed. The user?蒺s energy consumption is calculated by measuring the user inlet and outlet temperature and flow,using the IC card to record the prepaid amount and the current price of heat. The user?蒺s heating costs is calculated according to energy consumption and current price, according to actual heating costs and prepaid amount,the system controls the heating opening or stopping. It is more reasonable that calculated heating costs by user heat consumption

    标签: IC卡 计费 系统设计

    上传时间: 2013-10-14

    上传用户:大融融rr

  • WP151 - Xilinx FPGA的System ACE配置解决方案

    Design techniques for electronic systems areconstantly changing. In industries at the heart of thedigital revolution, this change is especially acute.Functional integration, dramatic increases incomplexity, new standards and protocols, costconstraints, and increased time-to-market pressureshave bolstered both the design challenges and theopportunities to develop modern electronic systems.One Trend driving these changes is the increasedintegration of core logic with previously discretefunctions to achieve higher performance and morecompact board designs.

    标签: System Xilinx FPGA 151

    上传时间: 2014-12-28

    上传用户:康郎