检索结果-南通市图书馆

Study of factors influencing the occurrence rate of 60 Hz power line radiation in the topside ionosphere:A systematic survey using the CSES satellite

引用

Science China(Technological Sciences) 2024年第6期67卷 1879-1892页

作者： MA ZhenHui ZHAO ShuFan LIAO Li SHEN XuHui lu hengxin School of Emergency Management Science and Engineering University of Chinese Academy of SciencesBeijing100049China State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing100190China Key Laboratory of Solar Activity and Space Weather National Space Science CenterChinese Academy of SciencesBeijing100190China National Institute of Natural Hazards Ministry of Emergency Management of ChinaBeijing100085China Institute of Geophysics China Earthquake AdministrationBeijing100081China

We analyze the topside ionosphere power line radiation(PLR)at 60 Hz over the US using electric field data collected by CSES satellite between January 2019 and December *** study aimed to further investigate the month-to-month variation characteristic of PLR occurrence rate observed by satellite and its several influencing factors,including solar radiation,lightning activity,and try to clarify the influence of electricity *** results show that the solar radiation(solar zenith angle and F10.7)plays a major role in the variation of the PLR occurrence rate,and that there is no direct connection with the number of *** the relationship between PLR occurrence rate and electricity consumption,the low occurrence rate associated with decreased weekend electricity consumption was not observed in the ***,there is a significant difference in PLR occurrence rate between the East and West Coasts of the US at the same latitude during the same time period,suggesting that the significant difference in PLR occurrence rate is caused by the significant difference in electricity consumption between the two *** excluding the effect of solar radiation on PLR occurrence rate,we concluded that only a significant difference in regional electricity consumption could lead to a corresponding change in PLR occurrence rate detected by the Low-Earth-Orbit ***,we also found there is seasonal variation in the diurnal differences of the PLR occurrence rate caused by seasonal variation of the lower ionosphere.

关键词： CSES satellite power line radiation occurrence rate solar radiation lightning activity electricity consumption

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Detecting seismic electromagnetic ELF anomalies associated with the 2010 Yushu earthquake in China by DEMETER observations and ELF Lithosphere-Atmosphere-Ionosphere coupling propagating model

引用

Science China(Technological Sciences) 2023年第4期66卷 1192-1202页

作者： LIAO Li ZHAO ShuFan SHEN XuHui ZEREN ZhiMa PENG HuaiYun lu hengxin Institute of Geophysics China Earthquake AdministrationBeijing 100081China National Institute of Natural Hazards Ministry of Emergency Management of ChinaBeijing 100085China China Research Institute of Radiowave Propagation Qingdao 266107China

Over the last century,abnormal electromagnetic(EM)emissions associated with earthquake(EQ)activities have been widely reported and recorded by ground-based and satellite ***,the frequency at which abnormal EM emissions have been detected *** addition,whether low Earth orbit(LEO)satellites can detect EM anomalies from EQs remains *** this paper,we take the Yushu earthquake as an example to address these concerns by DEMETER satellite observations and a newly constructed lithosphere-atmosphere-ionosphere model of extremely low frequency(ELF)wave *** results illustrate that the frequency of ELF EM anomalies of the Yushu earthquake is mainly at 200–400 *** observations and simulations illustrate that the power-frequency curve of the ELF EM wave from an underground source has a peak power frequency at 200–400 Hz,which is significantly different from the ELF EM wave radiated from the ground source.

关键词： seismic electromagnetic anomalies extremely low frequency(ELF)wave low Earth orbit(LEO)satellites lithosphereatmosphere-ionospheremodel

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Disturbance identification of electric field data observed by the CSES-01 satellite before earthquakes

引用

Science China Earth Sciences 2023年第8期66卷 1814-1824页

作者： Jianping HUANG Fuzhi ZHANG Zhong LI Xuhui SHEN Baiyi YANG Wenjing LI Zhima ZEREN hengxin lu Qiao TAN National Institute of Natural Hazards Ministry of Emergency ManagementBeijing 100085China Institute of Intelligent Emergency Information Processing Institute of Disaster PreventionLangfang 065201China

Numerous studies have confirmed that electromagnetic disturbances before earthquakes can be observed by *** this study,we use the C-value method that includes the acoustic whistle signature;pre-seismic ionospheric electromagnetic disturbance signals were acquired based on the CSES-01 satellite electric field data,and the maximum value of C in the earthquake preparation zones increased continuously from 2.0 three days before the earthquake and reached a maximum weight of 3.0 on the day of the earthquake,after the earthquake,it gradually decreased and recovered to about 2.0;its the C values fluctuated between-2 and 3,it is different from the C values range-2–12 of the previous seismic case study using the DEMETER satellite,which may be related to the orbital altitude and revisit period of the ***,the C values were normalized,and the time series analysis of the obtained θ values were done,and the results showed that:In the pregnant zone,the background variation of the disturbance amplitude θ is within 2σ,and the maximum disturbance amplitude of θ starts to increase gradually from the seventh period(one period of 5 days,i.e.,35–39 days before the earthquake),it reached 2σ by the fourth preseismic cycle(20–24 days before the earthquake),and then dropped sharply to about 1.5σ in the third pre-seismic cycle(15–19days before the earthquake),after two cycles of increase,the θ over the epicenter reached a maximum of 2.1σ at the time of the earthquake(combining the time of the earthquake and the satellite flight characteristics,the epicenter period is defined as January25-January 29,2020,and this defines the study time period line),and the θ decreases to within 2 times the standard range after the earthquake;The negative value of the disturbance amplitude θ in the central region of the pregnant seismic zone during the earthquake shows the transient energy release *** comparison,the θ values obtained by normalization based on the C-value method

关键词： The CSES-01 satellite Whistle Electric field C-value method Normalization

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Stability validation on the VLF waveform data of the China-Seismo-Electromagnetic Satellite

引用

Science China(Technological Sciences) 2022年第12期65卷 3069-3078页

作者： YANG DeHe ZHIMA ZeRen WANG Qiao HUANG JianPing WANG XiuYing ZHANG ZhenXia ZHAO ShuFan GUO Feng CHENG WanLi lu hengxin SHEN XuHui National Institute of Natural Hazards Ministry of Emergency Management of ChinaBeijing 100085China Henan Earthquake Agency Zhengzhou 450016China

The China-Seismo-Electromagnetic Satellite(CSES),which was launched in February 2018,carries the search coil magnetometer(SCM)and the electric field detector(EFD)to realize the high-resolution electromagnetic field and wave detection in the upper *** to the complexity and variability of the ionospheric environment,the stability of such a high sampling rate and high-precision electromagnetic field detection systems is always an essential link in data processing and the scientific application of *** work evaluates the stability of the very-low-frequency(VLF)band detection by validating the systemic sampling-time differences between SCM and EFD in the VLF burst-mode *** optimal waveform data preprocessing method is put forward according to the noise levels of the VLF burst-mode observation and the inherent design characteristics of *** VLF waveform data of EFD is rebuilt by filling the data gaps among the sampling sub-periods,making it with a similar sample length to *** by precisely intercepting the maximum and minimum values of the burst-mode waveforms,the variation of the sampling-time difference between EFD and SCM is statistically *** show that during the three years'operation,the sampling-time difference between EFD and SCM predominately keeps below 0.5 s,indicating good stability of EFD and SCM on *** we developed an automatic synchronization tool based on the similarity function and STA/LTA(short time average over long time average)characteristic *** tool can effectively realize the precise synchronization between SCM and EFD in the VLF burst-mode *** work is helpful to upgrade the data quality of CSES and provides technical support for electromagnetic wave propagation studies.

关键词： stability CSES EFD SCM sampling-time difference quasiperiodic waves

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Examples of unusual ionospheric observations by the CSES prior to earthquakes

引用

Earth and Planetary Physics 2018年第6期2卷 515-526页

作者： Rui Yan XuHui Shen JianPing Huang Qiao Wang Wei Chu DaPeng Liu YanYan Yang hengxin lu Song Xu The Institute of Crustal Dynamics China Earthquake Administration

The CSES(China seismic electromagnetic satellite) was launched on February 2, 2018 in a circular polar orbit at an altitude of～507 km. One of the main objectives of CSES is to search for and characterize ionospheric perturbations that can be associated with seismic activities, to better understand the generation mechanism of such perturbations. Its scientific payload can measure a broad frequency range of electromagnetic waves and some important plasma parameters. This paper is a first-hand study of unusual observations recorded by the CSES over seismic regions prior to four earthquakes with M >7.0 since the satellite's launch. CSES detectors measured irregularities near the epicenter of these four earthquakes. It is already clear that data from instruments onboard the CSES will be of significant help in studies of characteristics of ionospheric perturbations related to earthquakes and their generation mechanisms.

关键词： CSES ionospheric perturbations earthquake

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Application system and data description of the China Seismo-Electromagnetic Satellite

引用

Earth and Planetary Physics 2018年第6期2卷 444-454页

作者： JianPing Huang XuHui Shen XueMin Zhang hengxin lu Qiao Tan Qiao Wang Rui Yan Wei Chu YanYan Yang DaPeng Liu Song Xu Institute of Crustal Dynamics China Earthquake Administration Institute of Earthquake Forecasting China Earthquake Administration

The China Seismo-Electromagnetic Satellite, launched into orbit from Jiuquan Satellite Launch Centre on February 2 nd, 2018, is China's first space satellite dedicated to geophysical exporation. The satellite carries eight scientific payloads including high-precision magnetometers to detect electromagnetic changes in space, in particular changes associated with global earthquake disasters. In order to encourage and facilitate use by geophysical scientists of data from the satellite's payloads, this paper introduces the application systems developed for the China Seismo-Electromagnetic Satellite by the Institute of Crustal Dynamics, China Earthquake Administration;these include platform construction, data classification, data storage, data format, and data access and acquisition.

关键词： China Seismo-Electromagnetic Satellite application system geophysical field data classification

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Current Status and Main Scientific Results of In-flight CSES Mission

引用

空间科学学报 2020年第5期40卷 662-678页

作者： SHEN Xuhui ZEREN Zhima HUANG Jianping YANG Yanyan ZHAO Shufan YAN Rui ZHANG Zhenxia LIU Dapeng WANG Qiao CHU Wei lu hengxin XU Song GUO Feng TAN Qiao LI Wenjing ZHOU Na SONG Fuxi Institute of Crustal Dynamics China Earthquake AdministrationBeijing 100085

The CSES(China Seismo-Electromagnetic Satellite)is the electromagnetism satellite of China’s Zhangheng mission which is planned to launch a series of microsatellites within next 10 years in order to monitor the electromagnetic environment,gravitational *** CSES 01 probe(also called ZH-1)was launched successfully on 2 February 2018,from the Jiuquan Satellite Launch Centre(China)and is expected to operate for 5 years in *** second probe CSES 02 is going to be launched in *** scientific objectives of CSES are to detect the electromagnetic field and waves,plasma and particles,for studying the seismic-associated *** meet the requirements of scientific objective,the satellite is designed to be in a sun-synchronous orbit with a high inclination of 97.4°at an altitude around 507 *** carries nine scientific payloads including Search-coil magnetometer,Electric Field Detector,High precision Magnetometer,GNSS occultation Receiver,Plasma Analyzer,Langmuir Probe,two Energetic Particle Detectors(including an Italian one),and Tri-Band *** to now,CSES has been operating in orbit for 2 years with stable and reliable *** using all kinds of data acquired by CSES,we have undertaken a series of scientific researches in the field of global geomagnetic field re-building,the ionospheric variation environment,waves,and particle precipitations under disturbed space weather and earthquake activities,the Lithosphere-Atmosphere-Ionosphere coupling mechanism research and so on.

关键词： CSES mission Magnetic field model Waves Particles LAIC Geomagnetic storm

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

中西药联合治疗功能性消化不良临床研究

引用

光明中医 2019年第5期34卷 777-780页

作者：鲁恒心周口市中医院中医科河南周口466000

目的观察中西药(气滞胃痛颗粒联合西药)治疗肝胃气滞型功能性消化不良的临床疗效,为进一步认识功能性消化不良的病因病机关键及临证用药提供参考依据。方法选择本院2013年3月—2015年12月收治的肝胃气滞型功能性消化不良患者238例,并随... 详细信息

目的观察中西药(气滞胃痛颗粒联合西药)治疗肝胃气滞型功能性消化不良的临床疗效,为进一步认识功能性消化不良的病因病机关键及临证用药提供参考依据。方法选择本院2013年3月—2015年12月收治的肝胃气滞型功能性消化不良患者238例,并随机分为对照1组(口服枸橼酸莫沙必利片,5 mg/次,3次/d)、对照2组(口服气滞胃痛颗粒,5 g/次,3次/d)和联合用药组(对照1组+对照2组)。3组患者均连续用药4周,并在治疗结束后评价各组临床疗效、中医证候积分及血清胃动素(motilin,MTL)、胃泌素(gastrin,GAS)、生长抑素(somatostatin,SS)、胆囊收缩素(cholecystokinin,CCK)的含量。结果联合用药组患者治疗后总有效率明显高于对照1组和对照2组,差异具有统计学意义(P 0. 05)。结论气滞胃痛颗粒联合枸橼酸莫沙必利片治疗肝胃气滞型功能性消化不良有较好的临床疗效,其作用机制可能是协同增效作用,上调患者血清GAS、MTL表达水平,下调SS、CCK、NO水平。

关键词：气滞胃痛颗粒功能性消化不良肝胃气滞证疗效评价

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

中西医结合治疗原发性高血压疗效观察

引用

光明中医 2017年第10期32卷 1494-1495页

作者：鲁恒心河南省周口市中医院中医科周口466000

目的探讨中西医结合治疗原发性高血压患者血压及生存质量改善的临床效果。方法选择2015年1月—2016年1月内在我院住院治疗的原发性高血压患者共计100例,按随机原则将100例患者分成观察组和对照组,每组50例患者。两组患者均给予口服硝苯... 详细信息

目的探讨中西医结合治疗原发性高血压患者血压及生存质量改善的临床效果。方法选择2015年1月—2016年1月内在我院住院治疗的原发性高血压患者共计100例,按随机原则将100例患者分成观察组和对照组,每组50例患者。两组患者均给予口服硝苯地平缓释片进行治疗,观察组患者在此基础上联合中药汤剂口服进行治疗。结果观察组患者的中医证候治疗总有效率为96.0%,显著高于对照组患者的74.0%,差异具有统计学意义(P<0.05)。观察组患者治疗后的收缩压和舒张压水平均得到明显改善,改善程度显著优于对照组,差异具有统计学意义(P<0.05)。观察组患者治疗后的躯体健康、躯体角色功能、躯体疼痛、总体健康、活力、社会功能、情绪角色功能、心理健康等生存质量评分均明显升高,显著高于对照组,差异具有统计学意义(P<0.05)。结论应用中西医结合疗法治疗原发性高血压能够显著改善患者的血压水平和生存质量,从而显著提高患者的整体临床治疗效果。

关键词：中西医结合疗法原发性高血压眩晕

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Current Status and Main Scientific Outcomes of the CSES Mission

引用

空间科学学报 2022年第4期42卷 550-564页

作者： ZEREN Zhima HUANG Jianping LIU Dapeng YANG Yanyan YAN Rui ZHAO Shufan ZHANG Zhenxia LIN Jian CUI Jing CHU Wei WANG Qiao lu hengxin XU Song GUO Feng YANG Dehe ZHOU Na LIU Qinqin HUANG He WANG Jie TAN Qiao LI Wenjing LÜFangxian ZHU Keying SHEN Xuhui National Institute of Natural Hazards Ministry of Emergency ManagementBeijing 100085

This report briefly introduces the current status of the CSES(China Seismo-Electromagnetic Satellite)mission which includes the first satellite CSES 01 in-orbit(launched in February 2018),and the second satellite CSES 02(will be launched in 2023)under *** CSES 01 has been steadily operating in orbit for over four years,providing abundant global geophysical field data,including the background geomagnetic field,the electromagnetic field and wave,the plasma(in-situ and profile data),and the energetic particles in the *** CSES 01 platform and the scientific instruments generally perform *** data validation and calibration are vital for CSES 01,for it aims to monitor earthquakes by extracting the very weak seismic precursors from a relatively disturbing space electromagnetic *** this purpose,we are paying specific efforts to validate data quality *** the CSES 01 observations,we have obtained many scientific results on the ionosphere electromagnetic environment,the seismo-ionospheric disturbance phenomena,the space weather process,and the Lithosphere-Atmosphere-Ionosphere coupling mechanism.

关键词： CSES mission Satellite platform Scientific payloads Data validation Electromagnetic environment Seismic-ionospheric disturbance Space weather process

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：