模数

The graduation design is based on single chip microcomputer intelligent design of a power source, hardware design is the main task of the circuit design, battery, the three groups of different size power design, system design, manostat ADC0809 adc design, display design, the watchdog circuit module design, 3-8 decoder circuit design, AT89C51 basic circuit design, 74LS161 prescaler design and auxiliary circuit design, Software design task is: initialize program design, and key process design, charge control program design, A/D conversion program design, over-current protection program design, display design program.

本次毕业设计注意是设计一个基于单片机的智能电源，硬件设计的主要任务是：蓄电池充电电路的设计、三组不同大小的电源设计、系统稳压电源设计、ADC0809模数转换电路设计、看门狗电路设计、显示模块设计、3-8译码电路设计、AT89C51基本工作电路设计、74LS161分频器设计和辅助电路设计；软件设计的任务是：初始化程序设计、按键程序设计、充放电控制程序设计、A/D转换程序设计、过流保护程序设计、显示程序设计。

Adopting special lantern gear to minify the drive error of the screw drive chain on CA6140 lathe,high-precision inch-system lead screw and modulus lead screw can be processed.

采用专用挂轮，减小了CA6140螺纹传动链的传动误差，可加工出高精度英制丝杠和模数丝杠。

In this paper,a revised universal soil erosion e-quation was selected, the effects of errors of this neglection on it were tested by non-parametric hypothetical test method of Kolmogorov-Smirnov for a 22-year period within 21 catchments of the middle Huanghe River region,and the resul...

采用非参数假设检验方法，对年产沙模数估计方程中下垫面因素的时变影响作定性分析，结果表明，对于一般流域，如果没有人类活动或自然灾害破坏导致下垫面条件的突变，下垫面因素对产沙的影响可看作是时不变的。

Walling solar energy collector can be produced into many types of building units as nonbearing filled wall, such as "Heat collecting wall filler" and "Heat collecting roof". The walling solar energy collector is a kind of building unit, it can make full use of daylighting area of a whole wall, enhance the heat collection.

墙体太阳能集热器可以根据需要按照一定的模数制成适合各种建筑的&集热填充墙体&和&集热屋面&等建筑构件，做成南、东、西立面非承重式整体填充墙、部分填充墙、集热屋面等，该墙体集热器本身就是一种建筑构件。

Soil erosion intensity presented the characteristics of nubby discontinuous distribution in spatial, which is

采用影响度指数表示评价单元的土壤侵蚀对水质的影响程度，选择土地利用、离沟道距离、K值、坡度和侵蚀模数等作为评价影响度的影响因子，采用专家打分和综合评判法并结合GIS对土壤允许流失量进行判定；研究表明，研究区土壤允许流失量在100～500 t/km~2·a之间，且以200 t/km~2·a占绝大多数，100 t/km~2·a、300 t/km~2·a、400 t/km~2·a和500 t/km~2·a仅有零星的分布。

A sort of image acquisition system of paper's number with CIS based on ARM and CPLD is introduced.A re-al-time approach is brought out to collecting high-speed image information and image pretreatment.This system is mainly designed of hardware,the collected CIS image signal is saved in the SDRAM(synchronous dynamic random access memory) through pretreatment of occulting output com-pensation,secondary filter,analog digital converter and binaryzation,getting ready for further image...

介绍了一种自行设计的基于 ARM 及 CPLD 技术，利用接触式图像传感器采集纸币号码的图像采集系统，提出了一种实时采集高速图像信息及图像预处理的方法；系统以硬件设计为主，采集到的 CIS 图像信号经过明暗输出补偿、二阶滤波、模数转换、二值化等前置调理，保存在同步动态内存中，供 ARM 作进一步图像处理；系统中 CIS 传感器的时序信号由 CPLD 设计，实验表明，采集到的二值化图像清晰；这项研究成果可以推广到证券、票据号码的录入系统以及其他相关领域的字符识别系统。

PeakStop is a smooth well-controlled soft clipper whose behavior is sonically similar to the gentleness of OverEasy compression; its clipping is much preferable to a power amp's or analog-to-digital converter's.

峰值终止是一个平滑的很好控制的软剪切，如同OVEREASY压缩一样具有柔合性。它的剪切作用在功放或模数转换器中有着优越的性能。

The environment light intensity is converted into a high or a low electric level of RA2 which is one of the input ports of single chip microcomputer through a photoresistance MG44-2.The AD module will sample and the result will be stored in the work register then compared with a prestablished quantity.

基于PIC16F877A单片机的电子时间引信LCD背光控制，将环境光强度通过MG44-2光敏电阻器转换为单片机输入端口RA2上的电平高低，经模数转换模块进行采样，其结果存入工作寄存器，并与预先设定值相比较。

An analog prefilter;(2) an ADC;(3) a digital pulse shaper;(4) pulse selection logic;(5) histogram logic, and 6

波器；（2）模数转换器；（3）数字脉冲整形器；（4）脉冲选择逻辑单元；（5）条带逻辑

The evapotranspiration in the groundwater evaporation zone must be pirated and the pumpage of Huanhe irrigation district should be increased.

按平水年袭夺潜水蒸发条件下的最优开采模数调整开采井布局和开采量，袭夺潜水蒸发带潜水蒸发量，扩大环河灌区的井采规模。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。