Results 21 to 30 of about 1,317,455 (253)

The Double Difference Property for the Class of Locally Hölder Continuous Functions

Moscow Mathematical Journal, 2022
8 ...
Aliev, Rashid A., Asgarova, Aysel A., Ismailov, Vugar E.   +2 more
openaire   +3 more sources

Improving the Performance of Multi-GNSS (Global Navigation Satellite System) Ambiguity Fixing for Airborne Kinematic Positioning over Antarctica

Remote Sensing, 2019
Conventional relative kinematic positioning is difficult to be applied in the polar region of Earth since there is a very sparse distribution of reference stations, while precise point positioning (PPP), using data of a stand-alone receiver, is ...
Min Li, Tianhe Xu, Frank Flechtner, Christoph Förste, Biao Lu, Kaifei He   +5 more
doaj   +1 more source

Microseismic Source Location Estimation Using Reverse Double-Difference Time Imaging

IEEE Access, 2021
To locate microseismic sources, the reverse double-difference time imaging method is proposed in this paper. The traditional time-reversal imaging method requires an accurate velocity model.
Qiang Feng, Baozhi Pan, Liguo Han, Pan Zhang   +3 more
doaj   +1 more source

hypoDD-A Program to Compute Double-Difference Hypocenter Locations [PDF]

Open-File Report, 2001
HypoDD is a Fortran computer program package for relocating earthquakes with the double-difference algorithm of Waldhauser and Ellsworth (2000). This document provides a brief introduction into how to run and use the programs ph2dt and hypoDD to compute double-difference (DD) hypocenter locations.
openaire   +2 more sources

Preliminary Results of Double Difference Tomography at Sunda-Banda Arc [PDF]

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The Sunda-Arc transition to the Banda Arc is located on the south of the Flores Island, Indonesia, where the Australian lithosphere is moving to the north direction. On-going subduction process dictates the tectonic setting though some studies also suggest a collision and obduction may occur in the past due to of plate buoyancy.
null Haolia, M. I. Sulaiman, P. T. Brilianti, R. P. Nugroho, I. Madrinovella, A. Abdullah, D. A. Zaky, S. K. Suhardja, A. Priyono, S. Widiyantoro, M. Ramdhan, A. M. S. Nugraha   +11 more
openaire   +1 more source

Examining the Effectiveness of a Pilot Waste Classification Policy in Facilitating the Low-Carbon Transition Regarding Solid Waste in China

Atmosphere
The pilot waste classification policy is pivotal in tackling the challenges associated with the decarbonization of solid waste disposal in China; nevertheless, the efficacy of these pilot policies continues to be a topic of ongoing debate.
Yanshuang Yang, Huimin Li
doaj   +1 more source

Hypocenter relocation to identify hidden faults and their environmental implications in the karst region of Maros-Pangkep, South Sulawesi

Journal of Degraded and Mining Lands Management
The Maros-Pangkep region in South Sulawesi is a tropical karst landscape not officially mapped as an active fault zone, yet it has exhibited increasing micro-seismic activity in recent years.
Kevin Hanyu Clinton Wulur, Subaer Junaedi, Agus Susanto, Joshua Purba, Ramadhan Priadi   +4 more
doaj   +1 more source

Collaborative Double Difference Sparse Regularization and Convex Optimization for Bearing Fault Detection

IEEE Access, 2021
The localized faults of bearings often produce a series of periodic impacts. However, how to extract these repetitive transients from the signals with strong noise interference is still a challenging problem.
Feng Liu, Xinxin Li, Kexue Huang, Jiangshu Xiang, Wenxian Chen, Yanan Xiao, Hanling Mao, Zhenfeng Huang   +7 more
doaj   +1 more source

Multiple Periodic Solutions for Difference Equations with Double Resonance at Infinity

Advances in Difference Equations, 2011
By using variational methods and Morse theory, we study the multiplicity of the periodic solutions for a class of difference equations with double resonance at infinity.
Xiaosheng Zhang, Duo Wang
doaj   +2 more sources

Four-dimensional generalized difference matrix and some double sequence spaces

Journal of Inequalities and Applications, 2017
In this study, I introduce some new double sequence spaces B ( M u ) $B(\mathcal {M}_{u})$ , B ( C p ) $B(\mathcal{C}_{p})$ , B ( C b p ) $B(\mathcal{C}_{bp})$ , B ( C r ) $B(\mathcal {C}_{r})$ and B ( L q ) $B(\mathcal{L}_{q})$ as the domain of four ...
Orhan Tuǧ
doaj   +1 more source