搜索结果: 1-15 共查到“工学 PS”相关记录78条 . 查询时间(0.078 秒)
中国科学院高能物理研究所专利：基于PS-PMT的探测器信号读出方法和系统
PS无酸高级氧化工艺深度处理制浆造纸废水的工程应用
制浆造纸废水 PS无酸高级氧化 深度处理 溶解性有机物
2021/2/24
相较于Fenton高级氧化深度处理造纸废水，PS无酸高级氧化技术具有无需调节进水pH，药剂稳定等优点。基于此，以某造纸厂废水PS无酸高级氧化处理工程为依托，系统分析了该技术的工艺特点，研究了过硫酸钠、硫酸亚铁、氢氧化钠、聚合氯化铝等处理药剂用量与水量、进水负荷、COD去除量之间的关系。连续运行数据表明，高级氧化深度处理进水COD平均值为116 mg·L−1，出水COD平均值为47 mg...
GROUND SUBSIDENCE ALONG SHANGHAI METRO LINE 6 BY PS-InSAR METHOD
Ground subsidence Shanghai Metro Line 6 PS-InSAR COSMO-SkyMed Envisat ASAR
2018/5/15
With the rapid development of urban economy, convenient, safe, and efficient urban rail transit has become the preferred method for people to travel. In order to ensure the safety and sustainable deve...
以用聚乙烯吡咯烷酮(PVP)表面修饰的聚苯乙烯(PS, 约260 nm)微球为内核并利用PVP与十六烷基三甲基溴化铵之间的液相协同自组装过程,制备出以介孔氧化硅(Mesoporous silica, MSiO2)为包覆层的核/壳结构PS/MSiO2复合颗粒。结果表明,在样品壳层中有大量的放射状介孔孔道,壳层的厚度约为60 nm;样品的比表面积为848 g/m2,平均孔径为2.54 nm。根据单个复...
PS测井在机场隧道地基勘查中的应用
弹性波测井 等效剪切波速 场地类别 岩土动力学参数
2018/4/2
PS测井技术是地震勘探方法之一，也是一种简便、快速、准确的原位测试技术。该文介绍了单孔法PS测井的原理及其在铁路工程勘察中的应用，主要包括根据等效剪切波，进行建筑抗震场地类别划分，铁路工程抗震场地类别划分。根据岩土动力学参数，达到评价岩体质量和划分围岩类别目的,利用剪切波速法估算岩土的承载力基本值。通过青岛机场隧道场地的工程实例说明了PS测井技术在岩土工程勘察设计中的应用情况及应用效果。
LAND SUBSIDENCE MONITORING USING PS-InSAR TECHNIQUE FOR L-BAND SAR DATA
Differential Interferometric synthetic (D-InSAR) Persistent Scatterer Interferometry Levelling Anthropogenic targets
2016/11/24
Differential SAR-Interferometry (D-InSAR) is one of the potential source to measure land surface motion induced due to underground coal mining. However, this technique has many limitation such as atmo...
SUBSIDENCE MEASUREMENT WITH PS-INSAR TECHNIQUES IN SHANGHAI URBAN
DInSAR PS-InSAR Subsidence Measurement Urban
2015/12/30
Spaceborne SAR Differential interferometry (DInSAR) has been used to monitor some geological disasters such as ground subsidence. This paper applies two Permanent Scatterer InSAR(PS-InSAR) techniques ...
Web-based framework for ps-insar data interpretation assisted by geo-spatial information fusion
(PS)-InSAR Interpretation Information fusion
2015/8/21
This study investigates the options of information mining to enhance interpretation of PS-InSAR results of land subsidence analysis.
Persistent Scatterer (PS) Interferometric Synthetic Aperture Radar...
鄂尔多斯盆地是典型的低孔、低渗、低压岩性油气藏，地震预测有效储层难度大，同时SX地区天然气储层特殊的地质条件导致PP波地震资料在有效储层的识别上存在多解性。开展多波地震勘探以获取不受流体影响的横波信息，利用PP+PS波联合解释含气层，尽量规避单纯利用PP波资料的多解性，是解决SX地区地震流体检测问题的新途径。故基于SX地区测井资料岩石物理分析的基础上，主要阐述PP+PS波地震流体检测技术系列，包括...
Assessment of slope stability using PS-InSAR technique
PS-InSAR Landslide StaMPS Deformation
2014/12/15
In this research work, PS-InSAR approach is envisaged to monitor slope stability of landslides prone areas in Nainital and Tehri region of Uttarakhand, India. For the proposed work, Stanford Method fo...
联合高精度的GPS水平位移观测和高密度的PS-InSAR雷达视线位移测量,实现地表三维形变的精确反演.本文在准确计算卫星轨道方位角基础上,使用GPS观测位移与星载雷达LOS方向形变的投影转换模型,将雷达LOS方向形变转换为垂直方向位移,并基于地面GPS与SAR影像PS目标联合构建形变监测网,采用参数平差算法估计区域地表形变场.以地质构造活动极其活跃的台湾岛及其西南屏东高雄地区为例,联合屏东地区48...
基于热重红外联用分析的PE、PS、PVC热解机理研究
PE PS PVC TGA-FTIR联用 热解机理
2014/5/16
利用TGA-FTIR联用技术考察了PE、PS、PVC三种典型塑料的热解特性。结果表明,热稳定性从弱到强依次为PVC、PS、PE。PE热解反应过程为典型的一段式反应,红外光谱分析结果表明,PE热解过程为无规则断链形式,生成产物成分复杂,且随热解过程而改变,开始以饱和烃基团为主,中后期以烯烃基团为主,同时有少量炔烃;PS热解过程同样为一段式反应,红外光谱显示主要热解产物为苯乙烯单体,说明热解过程主要是...
采用聚苯乙烯(PS)包裹 Fe3O4 磁性纳米粒子,制得 Fe3O4@PS 复合微球,以此作为磁性载体, 通过微球表面的羧基将聚酰胺-胺类树形大分子(PAMAM)连接到磁性载体上, 然后使 Ag 纳米粒子镶嵌在树形分子层中,制得可再生的金属复合催化粒子Fe3O4@PS@PAMAM-Ag.并采用红外光谱、扫描电镜、电感耦合等离子体质谱 (ICP-MS) 和 X 射线光电子能谱等方法对复合催化粒子进行...
50 GHz Spaced 4 × 40 Gbit/s WDM Transmission over 700 km Using 6 ps Bandlimited RZ Signals
Telecommunications Fiber Optics Communications Wavelength Division Multiplexing (WDM) Optical Time Division Multiplexing (OTDM)
2013/1/30
In this paper, we present 50 GHz spaced 4 ×40 Gbit/s WDM transmission over 700 km using SMF-based Effective Area Enlarged Positive Dispersion Fiber in a recirculating loop. The paper uses bandlimited ...
Sub-ps Laser Based on a CMOS Compatible Integrated Microring Resonator
Ultrafast lasers Nonlinear wave mixing
2015/5/22
We present a dissipative four wave mixing tunable laser based on a integrated CMOS-compatible high-Q nonlinear ring resonator, emitting subpicosecond pulses at 200GHz-repetition rate.Quasi-sinusoidal ...