Results 1 to 10 of about 35,599 (288)

A Low-Noise High-Resolution Temperature Measurement Technique Based on Inductive Voltage Divider and Alternating-Current Bridge [PDF]

open access: yesSensors
In the field of space gravitational wave detection, high-precision temperature measurement with a resolution at the micro-Kelvin level in the milli-Hertz frequency range is required to mitigate the interference caused by temperature fluctuations around ...
Shanghua Gao   +10 more
doaj   +2 more sources

Assessment of strong earthquake risk in the Chinese mainland from 2021 to 2030

open access: yesEarthquake Research Advances, 2023
The long-term earthquake prediction from 2021 to 2030 is carried out by researching the active tectonic block boundary zones in the Chinese mainland. Based on the strong earthquake recurrence model, the cumulative probability of each target fault in the ...
Zhigang Shao   +21 more
doaj   +1 more source

NEAR REAL-TIME GEOREFERENCE OF UMANNED AERIAL VEHICLE IMAGES FOR POST-EARTHQUAKE RESPONSE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The rapid collection of Unmanned Aerial Vehicle (UAV) remote sensing images plays an important role in the fast submitting disaster information and the monitored serious damaged objects after the earthquake.
S. Wang   +5 more
doaj   +1 more source

PRELIMINARY STUDY ON EARTHQUAKE SURFACE RUPTURE EXTRACTION FROM UAV IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Because of the advantages of low-cost, lightweight and photography under the cloud, UAVs have been widely used in the field of seismic geomorphology research in recent years.
X. Yuan   +5 more
doaj   +1 more source

北京黄庄—高丽营断裂土壤气体地球化学特征及其对地震活动的指示

open access: yesDizhen xuebao, 2023
通过对2017年5月土壤气CO2,Rn和Hg的野外流动测量以及2020年9月1日至2021年6月30日期间土壤气监测站Rn的连续监测,利用残差法和地震指数KS方法对黄庄—高丽营断裂南北段的活动差异和区域地震活动进行了分析。结果表明,与首都圈地区其它断裂相比,黄庄—高丽营断裂是首都圈地区活动性相对较强的活动断裂,断裂北段的土壤气体浓度和通量较南段更高,且北段上盘的CO2和Rn浓度明显高于下盘,指示断裂北段具有更强的活动性。对土壤气连续监测站数据进行分析,结果显示监测站的Rn浓度与气温 ...
Zhaofei Liu   +6 more
doaj   +1 more source

Hydrogeochemistry of Fault-Related Hot Springs in the Qaidam Basin, China

open access: yesApplied Sciences, 2023
Hydrogeochemical characterization studies are regarded as an important method for determining the origin of hot springs. The major elements, trace elements, and stable isotopes of four groups of hot spring water samples and two groups of gas samples ...
Jie Tang   +10 more
doaj   +1 more source

THE DETERMINATION METHOD OF EXTREME EARTHQUAKE DISASTER AREA BASED ON THE DUST DETECTION RESULT FROM GF-4 DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The remote sensing has played an important role in many earthquake emergencies by rapidly providing the building damage, road damage, landslide and other disaster information. The earthquake in the mountains often caused to the loosening of the mountains
A. Dou, L. Ding, M. Chen, X. Wang
doaj   +1 more source

The VLF-induced ionospheric perturbations detected by DEMETER during solar minimum

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2023
The VLF-induced ionospheric heating events from the powerful transmitter NWC are collected at extremely low solar activity years of 2008–2009, and their spatial and temporal distribution features are investigated.
Xuemin Zhang, Lei Dong, Lei Nie
doaj   +1 more source

STUDY ON SITE CONDITIONS BASED ON TOPOGRAPHIC SLOPE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The travel-time averaged shear-wave velocity to a depth of 30m (Vs30) below the Earth’s surface is widely used to classify sites in many building codes. Vs30 is also used to estimate site classification in recent ground-motion prediction equations (GMPEs)
X. Wu, X. Wang, X. Yuan, M. Chen, A. Dou
doaj   +1 more source

分形插值法在地电场干扰数据处理中的应用

open access: yesDizhen xuebao, 2021
当地电场和地电阻率同场地观测时,地电场观测会受到地电阻率观测的供电干扰,这类干扰时间短、干扰形态和出现时间固定,影响了地电场观测数据的正常变化形态,给数据分析和地震科学研究造成困难。为解决这一干扰问题,本文在比较分形插值方法与传统插值方法优劣的基础上,采用分形插值方法对受干扰的地电场观测数据进行重建,以提高信号重建的精度。结果表明,采用该方法重建的数据是对原数据很好的近似,可有效地恢复观测数据信息,保持观测数据原有的变化趋势。
Lanwei Wang   +3 more
doaj   +1 more source

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