搜索结果: 1-15 共查到“electrical conductivity”相关记录37条 . 查询时间(0.078 秒)
中国地质大学科学技术发展院陈思博(硕士研究生), 郭新转等GPMR国家重点实验室 GEOLOGY, JAN 2018, Dehydration of phengite inferred by electrical conductivity measurements: Implication for the high conductivity anomalies relevant to the subduction zones
多硅；白云母；脱水；对俯冲带；高导；异常
2021/10/21
2018年1月，《GEOLOGY》刊发了中国地质大学地质过程与矿产资源国家重点实验室郭新转副教授研究团队的研究论文：多硅白云母的脱水及其对俯冲带高导异常的启示（Dehydration of phengite inferred by electrical conductivitymeasurements: Implication for the high conductivity anomalies...
中国地质大学科学技术发展院蔡建超，胡祥云等地空学院 Earth-Science Reviews，30 June 2017. Electrical conductivity models in saturated porous media: A review
饱和；多孔介质；电导率；模型
2021/10/21
2017年6月30日，中国地质大学地空学院蔡建超教授于国际著名期刊《Earth-Science Reviews》（IF=7.051）上在线发表了综述论文《饱和多孔介质中电导率模型的研究进展》(Electrical conductivity models in saturated porous media: A review)。
Evaluations of the effects of soil properties and electrical conductivity on the water content reflectometer calibration for landfill cover soils
soil electrical conductivity soil index properties time domain reflectometry volumetric water content WCR calibration
2017/4/6
This study presents soil-moisture calibrations using low-frequency (15–40 MHz) time domain reflectometry (TDR) probe, referred to as water content reflectometer (WCR), for measuring the volumetric wat...
Evaluations of the effects of soil properties and electrical conductivity on the water content reflectometer calibration for landfill cover soils
soil electrical conductivity soil index properties time domain reflectometry volumetric water content WCR calibration
2016/8/2
This study presents soil-moisture calibrations using low-frequency (15–40 MHz) time domain reflectometry (TDR) probe, referred to as water content reflectometer (WCR), for measuring the volumetric wat...
Assessment of deep electrical conductivity features of Northern Victoria Land (Antarctica) under other geophysical constraints
Magnetovariations electrical conductivity lithosphere
2015/9/28
The lithospheric and crustal structure of the Victoria Land continental block (Antarctica) has been studied by geological and geophysical surveys. Among them magnetovariational investigations (MV) hav...
面向车载式测量的土壤含水量与电导率复合传感器设计（On-the-go Measurement Oriented Combined Sensor Design for Soil Moisture Content and Electrical Conductivity）
复合传感器 土壤含水量 土壤电导率
2010/12/28
基于介电方法设计了符合车载测量要求的四环电极结构土壤含水量与电导率复合传感器。分别在NaCl电导率溶液、含水土样和混合土样中进行标定试验分析，结果证实了复合传感器的可行性。通过分析混合土样中含水量和电导率与传感器输出信号之间的相关性，分别建立土壤含水量与电导率的统计预测模型。
Proof of universality of electrical conductivity at finite chemical potential
electrical conductivity finite chemical potential
2010/12/23
It was proposed in arXiv:1008.2944 that, for certain gauge theories with gravity duals, electrical conductivity at finite chemical potential is universal. Here we provide a general proof that, when m...
Proof of universality of electrical conductivity at finite chemical potential
electrical conductivity finite chemical potential
2010/12/23
It was proposed in arXiv:1008.2944 that, for certain gauge theories with gravity duals, electrical conductivity at finite chemical potential is universal. Here we provide a general proof that, when m...
Small Scale Spatial Variability of Apparent Electrical Conductivity within a Paddy Field
Spatial Variability Apparent Electrical Conductivity a Paddy Field
2009/12/2
This study aims to characterize the variability of soil ECa within a Malaysian paddy field with respect to the spatial and seasonal variability. The study was conducted at Block C, Sawah Sempadan, Sel...
Diurnal Variations in Electrical Conductivity of Water in a Small Stream
Diurnal Variations Electrical Conductivity of Water Small Stream
2009/10/28
Diurnal fluctuations in electrical conductivity of water have been observed in
a small streBm draining a basin 12 km2 in size. An attempt to explain the cause
of these variations is presented. The t...
测试土壤含水率和电导率的时域反射仪系统（Design of Time Domain Reflectometry for Application of Soil Moisture and Bulk Electrical Conductivity Measurements）
土壤 含水率 电导率 相对介电常数
2009/8/11
研究了用于土壤参数测试的时域反射仪（TDR）系统原理与电路实现方法。根据系统设计要求设计出时域反射仪样机，该样机脉冲发生电路产生140ps上升沿的时域脉冲，接收电路等效采样精度为8.69ps，并设计了时域反射仪系统控制程序，给出了程序的系统控制和数据处理流程图。利用研制的TDR样机对两种土壤样本的相对介电常数进行了测试，反演了土壤样品的体积含水率，同时利用采集波形反演计算出不同湿度土壤样品的体积含...
农田土壤pH值和电导率采集仪设计与试验（Design and Experiment on the Field Information pH Value and Electrical Conductivity Acquisition Instrument）
土壤 pH值 电导率 采集仪
2009/8/11
设计开发了测量pH值和电导率的农田信息采集仪。在探讨该仪器测量原理和软硬件设计的基础上，分别采用两点校正法和配比KCl溶液法对采集仪的pH值和电导率测量进行了标定试验，并在一块黄豆田间隔14m×14m进行土壤采样，共采土样15个，对标定方程进行了验证试验。结果表明，土壤pH值标定结果和准确值的相对误差小于1%，土壤电导率相对误差小于14%；土壤pH值标定结果和准确值线性回归模型检验显著性概率为0....
Electrical Conductivity of the Lithosphere-Implications for the Evolution of the Fennoscandian Shield
electrical conductivity lithosphere lower crust terrane boundaries Precambrian Fennoscandia
2009/6/10
The electromagnetic induction research on the deep structure in the Fennoscandian Shield and
the airborne surveys in Finland have provided a globally unique electromagnetic data set to estimate litho...
Broadband magnetotelluric instruments for near-surface and lithospheric studies of electrical conductivity: A Fennoscandian pool of magnetotelluric instruments
magnetotelluric audiomagnetotelluric geophysical instruments
2009/6/9
A set of three new tensor audiomagnetotelluric – magnetotelluric (AMT-MT) instruments have
been assembled in Oulu. Their design is based on the MTU2000 magnetotelluric equipment that was developed ea...
Continuous pH, electrical conductivity and temperature measurement at Plynlimon：towards an integrated, reliable and low maintenance instrument system
Water quality Continuous pH temperature measurement electrical conductivity
2009/6/8
Water quality data for the Nant Tanilwyth stream, Plynlimon (an acidic upland stream, the waters of which are of such low ionic strength that measurement is difficult), has been recorded using a new i...