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一、單项填空(共15题;每小题1分,满分15分) 1. More and more countries have come to realize that the world______do without H......
A new high performance charge pump circuit is designed and realized in 0.18μm CMOS process. A wide input ranged rail-to......
This paper introduces a mixed continuous-time/discrete-time,single-loop,fourth-order,4-bit audio-band sigma delta ADC th......
A low power 12-bit 200-kS/s SAR ADC is proposed.This features a differential time domain comparator whose offset is canc......
We propose a novel hybrid phase-locked loop(PLL) architecture for overcoming the trade-off between fast locking time and......
This paper presents a 10 bit successive approximation register(SAR) analog-to-digital converter(ADC)in 0.18 m 1P6 M CMOS......
一、多项选择 1. After two bad, loveless marriages perhaps she would_________ herself to the work she was meant to do.......
China-Russia economic cooperation and trade have achieved remarkable success in recent years.Trade between the two count......
The volume change and shear strength behaviour of tailings slurry with the changes in gravimetric mois-ture content is i......
所有用来加速赤泥悬浮固体颗粒沉降的聚合物絮凝剂,都会使赤泥底流场应力增加,从而使其流动性变差。在某一固体颗粒浓度下,场应力......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Developments in the contents of different typical inclusions in 3104 alloy melt were described during heating and holdin......
Grain-size distribution patterns of suspended sediment in response to hydrodynamics on the Dafeng in
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Factors influencing the removal of fine non-cohesive sediment by vortex settling basin at small rive
Diverted sediment causes a wide range of problems at small diversion works.The difference in water levels between low fl......
通过对微细石英颗粒的表面进行变性处理,研究表面极性对微细石英颗粒沉降速度的影响.石英砂粒群在水中的干涉沉降试验结果表明,干......
通过分析沉淀池内锍液滴的沉降机理,导出了渣中最大锍液滴直径的计算公式。根据闪速炉的实际生产条件,计算出渣中最大锍液滴直径的理......
The slag cleaning(or matte settling)process was experimentally investigated at 1573 K using a fayalitic nickel converter......
介绍了河南油田优选的污泥浓缩剂H-618和研制的污泥浓缩分离设备。新型卧式分离器取代常用的立式锥底浓缩罐,提高了分离效率,实现......
介绍了煤造气含氰污水中悬浮物沉降试验,确定了悬浮物沉降模式,并将其应用于合成氨厂含氰污水预处理装置.......
An old man was sitting with his 25-year-old son on the train. The train was about to leave the station. All passengers w......
Contop工艺利用了旋涡熔炼和顶吹技术两种技术,旋涡熔炼是一种强化熔炼,旋涡室内温度高,热强度大,物料停留时间短,可以处理各种复......
井下采空区利用细颗粒尾砂充填,细颗粒尾砂往往在充填体表面形成一层很薄的细泥层,细泥隔水层阻止了充填体表面上方的澄清水往下渗......
湖泊沉积中的硅藻对环境反应敏感,记录了年际甚至季节尺度的高分辨率的古气候信息,成为古环境研究中重要手段之一。目前,硅藻已普遍用......
本文采用X射线衍射对样品进行了物质组分分析,并通过试验确定了凝聚剂种类和用量、水质条件以及不同离子半径对高泥化煤泥水沉降性......
针对河口海岸工程中翻板滑抛土工包入水后落点位置无法准确预测的问题,对抛投土工包进行了受力分析,提出了落点坐标的理论计算公式......
细颗粒泥沙密实速度问题是认识细颗粒动力过程重要的参数之一,也是决定地貌学数学模型表现能力的核心参数。利用“大型可温控自动搅......
采用气升式间歇反应器研究了好氧污泥颗粒化过程,分别考查了厌氧颗粒污泥和活性污泥为接种污泥时好氧污泥颗粒化过程及其特性的不......
文章提出在调合罐中配置可升降的出口管线,在过滤灌装过程中形成沉降工序,有利于油品中不溶物的沉积,既不影响生产节奏,又有利于提......
以广州大学城杂用水厂排泥水污泥为研究对象,投加阴离子高分子聚合物(简称AP)进行架桥絮凝沉降实验,结合在线显微摄像与图像分析技术......
通过理论计算说明地层沉降和抬升过程中温度对地层压力的影响。沉降过程中流体温度增加所带来的超压大致为孔隙体积减少所带来的超......
应用AKULA 9000C地质雷达,对云南省玉磨铁路新平村#2隧道基底溶洞进行探测,并简要分析了地质雷达探测隧道基底溶洞的机理。结果表......
通过沉降试验、吸附量测试和Zeta电位测试,研究壳聚糖对微细粒蛇纹石的分散及絮凝作用,并考察其作用机理。结果表明:蛇纹石的沉降受......
通过实验表明,叶滤机滤饼中仍含有一定量的有效氧化钙,返回溶出后槽后会继续造成氧化铝的损失。同时,混入叶滤机滤饼后的溶出后槽......
研制了一种新型的磁流变胶(magnetorheological gels),它具有良好的沉降稳定性和优良的磁流变效应。在2500r/min的离心实验中,离心20mi......
由于聚合物驱采出水中聚合物含量的变化,造成已建含油污水处理系统中的沉降部分处理效率和效果降低,过滤部分阻力增大、运行周期缩短......
试验研究了大红山铜矿全尾砂在添加不同絮凝剂条件下的沉降特性,通过实验结果数据的分析和对比,并综合考虑最终沉降面高度和经济成本......
运煤系统中的转载点是产生粉尘的重要源头,为了降低粉尘的产生,文章分析了粉尘的受力、粉尘沉降和风流的关系,以气固两相流理论为基础......
目前广西氧化铝生产的铝土矿其氧化铝含量52%~54%,铝硅比9左右。由于铝土矿资源的减少,对低品位的铝土矿使用成为解决资源短缺的主......
采用EGSB反应器处理含氯苯有机废水,主要研究了氯苯对颗粒污泥性质的影响.结果表明:氯苯对处理葡萄糖自配水的EGSB反应器内颗粒污......
The mature fine oil sand tailings(MFT)remain as slurry in the tailings pond for long time.The dewatering and consolidati......
-- Based on the test data in dynamic water and static water, the main factors, which influence the fine sediment floccul......
The present paper is focussed on the effects of viscous and turbulent shear stresses on both vertical velocity and conce......