Results 41 to 50 of about 5,599 (290)

SENTINEL-1 IMAGE MATCHING USING STRONG SCATTERS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
The availability of new radar spaceborne sensors offers new interesting potentialities for the geomatics application: spatial and temporal change detection, generation of Digital Elevation Model(DEM) using radargrametry and interferometry.
M. A. Ghannadi   +2 more
doaj   +1 more source

Rapid report of the March 28, 2025 MW 7.9 Myanmar earthquake

open access: yesEarthquake Research Advances
On March 28, 2025, a moment magnitude (MW) 7.9 earthquake struck Myanmar, marking it as the most powerful seismic event of the year. The earthquake occurred along the Sagaing Fault, a prominent right-lateral strike-slip fault and the most significant ...
Jing Cai   +4 more
doaj   +1 more source

Interpretation of the west segment of the coastal fault zone in the coastal region of South China based on the gravity data

open access: yesGeodesy and Geodynamics, 2018
By systemic processing, comprehensive analysis, and interpretation of gravity data, we confirmed the existence of the west segment of the coastal fault zone (west of Yangjiang to Beibu Bay) in the coastal region of South China.
Lisi Bi   +4 more
doaj   +1 more source

Design, Implementation and Testing of a Network-Based Earthquake Early Warning System in Greece

open access: yesFrontiers in Earth Science, 2021
In this study we implemented and tested the Earthquake Early Warning system PRESTo (PRobabilistic and Evolutionary early warning System, Satriano et al., 2011) on the Greek Ionian islands of Lefkada, Zakynthos and Kefalonia.
M. Bracale   +4 more
doaj   +1 more source

Research on compressive sensing of strong earthquake signals for earthquake early warning

open access: yesGeomatics, Natural Hazards & Risk, 2021
Earthquake early warning is an effective method to reduce casualties and losses. Based on the theory of compressive sensing, this paper proposes a strong earthquake signal processing architecture based on compressive sensing for difficulties of the ...
Jiening Xia   +4 more
doaj   +1 more source

Earthquake early warning

open access: yesBUTSURI-TANSA(Geophysical Exploration), 2007
緊急地震速報は,震源の近くの観測点のデータを用いて,震源とマグニチュードを高速で決定し,強震動の分布を推定し,その情報を利用者へ即座に伝える。震源からある程度はなれたところにいる人には,強い揺れが来る前にある程度の時間的余裕(数秒から数十秒)をもって警報することが可能である。震源の即時決定のためには,利用できる観測点の数によってB-Δ法,テリトリー法(1~2点),グリッドサーチ法(3~5点)などの方法を使う一方で,防災科学研究所が開発した着未着法も活用している。地震のマグニチュードは,P波段階でマグニチュードが推定できるようにP波マグニチュードの式を使い,時間とともに全ての波を使ったマグニチュードの式に切り替える方式になっている。各地の最大震度の推定には ...
openaire   +2 more sources

From Green Governance to Biodiversity Strategy: The Role of Environmentally Experienced Directors in Chinese Firms

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigates how directors with environmental protection (EP) backgrounds influence corporate biodiversity concern (BIO) among Chinese A‐share listed firms from 2008 to 2023. Drawing on Upper Echelons Theory, we argue that directors' environmental expertise shapes firms' biodiversity strategies.
Chengming Huang   +2 more
wiley   +1 more source

Implementation of Shape Memory Alloy Sponge as Energy Dissipating Material on Pounding Tuned Mass Damper: An Experimental Investigation

open access: yesApplied Sciences, 2019
Piping systems are important nonstructural components of most types of buildings. Damage to piping systems can lead to significant economic losses, casualties, and interruption of function.
Jie Tan   +5 more
doaj   +1 more source

Shear behavior of bolt–grout interfaces under constant normal stiffness: Influence of grout strength and thickness

open access: yesDeep Underground Science and Engineering, EarlyView.
The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang   +5 more
wiley   +1 more source

Development of ShakeAlert 2.0 earthquake early warning system in the United States

open access: yes地球与行星物理论评, 2021
ShakeAlert earthquake early warning system in the west coast of the United States can issue alerts to the public before destructive seismic waves arrive, mitigating the hazards of earthquakes.
Heyi Liu, Jindong Song, Shanyou Li
doaj   +1 more source

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