Results 11 to 20 of about 4,496,087 (288)

Upgrades of the Earth Networks Total Lightning Network in 2021

Remote Sensing, 2022
The Earth Networks Total Lightning Network (ENTLN) launched a new processor (P2021) in December 2021. Some major upgrades were made in the new processor, including a new classification algorithm, a new propagation model, and regional data processing ...
Yanan Zhu, Michael Stock, Jeff Lapierre, Elizabeth DiGangi   +3 more
doaj   +1 more source

Performance Evaluation of an Earthquake Early Warning System in the 2019–2020 M6.0 Changning, Sichuan, China, Seismic Sequence

Frontiers in Earth Science, 2021
China is currently building a nationwide earthquake early warning system (EEWS) which will be completed in June 2023. Several regions have been selected as pilot areas for instrumentation, software system and dissemination verification. For these regions,
Chaoyong Peng, Chaoyong Peng, Peng Jiang, Qiang Ma, Peng Wu, Jingrong Su, Yu Zheng, Jiansi Yang   +7 more
doaj   +1 more source

A High Performance Privacy-Oriented Location System [PDF]

, 2003
Many mobile applications can be greatly enhanced when provided with the locations of people and devices. Ultrasonic location systems have been shown to supply location information with centimeter accuracy at high update rates.
Ward, Andy, Hazas, Michael
core   +4 more sources

Characteristics of the Blitzortung.org Lightning Location Catalog in Japan

Atmosphere, 2023
We evaluated the detection efficiency and location accuracy of lightning discharges in Japan using Blitzortung.org, a volunteer-based network for locating lightning discharges from sferics measured by very low frequency (VLF) electromagnetic receivers ...
Masashi Kamogawa, Tomoyuki Suzuki, Hironobu Fujiwara, Tomomi Narita, Egon Wanke, Kotaro Murata, Toshiyasu Nagao, Tetsuya Kodama, Jun Izutsu, Atsushi Matsuki, Ning Tang, Yasuhiro Minamoto   +11 more
doaj   +1 more source

Mutualism promotes site selection in a large marine planktivore

Ecology and Evolution, 2021
Mutualism is a form of symbiosis whereby both parties benefit from the relationship. An example is cleaning symbiosis, which has been observed in terrestrial and marine environments.
Asia O. Armstrong, Amelia J. Armstrong, Michael B. Bennett, Anthony J. Richardson, Kathy A. Townsend, Jason D. Everett, Graeme C. Hays, Hugh Pederson, Christine L. Dudgeon   +8 more
doaj   +1 more source

Development of a low-frequency magnetic lightning mapping system (LFM-LMS) in North China: validation and preliminary results

Earth and Planetary Physics, 2023
A low-frequency magnetic lightning mapping system (LFM-LMS) was built during the SHAndong Triggered Lightning Experiment (SHATLE), based on continuous measurements of magnetic field radiation from lightning.
Xiao Li, GaoPeng Lu, FanChao Lyu, HongBo Zhang, Kainat Qamar, RuBin Jiang   +5 more
doaj   +1 more source

Dual Sagnac Interferometer Distributed Optical Fiber Localization Method Based on Hilbert–Huang Transform

Energies, 2023
In order to solve the problem that the dual Mach Zehnder (M-Z) interferometer system is easily affected by external environmental noise, a data signal-processing scheme based on Hilbert–Huang transform (HHT) is proposed to achieve high-precision location
Zhiheng Liu, Yongqing Wang, Jiuxi Cheng, Peijie Han, Zhibin Liu, Zhaoyan Zhang, Xiaoguang Li, Jianquan Yao   +7 more
doaj   +1 more source

Preliminary Application of Long-Range Lightning Location Network with Equivalent Propagation Velocity in China

Remote Sensing, 2022
The equivalent propagation method adopts a variable propagation velocity in lightning location, minimizing the location error caused by various factors in the long-range lightning location network. To verify the feasibility of this method, we establish a
Jie Li, Bingzhe Dai, Jiahao Zhou, Junchao Zhang, Qilin Zhang, Jing Yang, Yao Wang, Jiaying Gu, Wenhao Hou, Bin Zou, Jing Li   +10 more
doaj   +1 more source

Leveraging RSS Data For An Improved Radiolocation Estimation Algorithm Realization In LoRaWAN Using A Two-Tier Normalization

Journal of Applied Science and Engineering, 2023
An attempt to further enhance the accuracy and reliability of M-iWMLR localization algorithm using a new weight matrix that was formulated with two-tier RSS data normalization is presented.
Colette E. Agbo, Udora N. Nwawelu, Mamilus A. Ahaneku   +2 more
doaj   +1 more source

Privacy through uncertainty in location-based services [PDF]

, 2013
Location-Based Services (LBS) are becoming more prevalent. While there are many benefits, there are also real privacy risks. People are unwilling to give up the benefits - but can we reduce privacy risks without giving up on LBS entirely?
Kuijpers, Bart, Othman, Walied, Shawn Merrill, Erik Buchmann, Walied Othman, Erkay Savas, Basalp, Nilguen, Biskup, Joachim, Clifton, Chris, Savaş, Erkay, Başalp, Nilgün, Buchmann, Erik, Joachim Biskup, Bart Kuijpers, Nilgun Basalp, Chris Clifton, Merrill, Shawn   +16 more
core   +1 more source