Results 21 to 30 of about 12,009,576 (309)
Application of multispectral UAV to estimate mangrove biomass in Vietnam: A case study in Dong Rui commune, Quang Ninh Province [PDF]
One Ecosystem, 2023 Mangroves play an important role in coastal estuarine areas with different ecological functions, such as reducing the impact of waves and currents, accumulating biomass and sequestering carbon. However, estimation of terrestrial biomass in mangrove areas,
Dung Ngo +6 more
doaj +3 more sources
Fracture permeability estimation utilizing conventional well logs and flow zone indicator
Petroleum Research, 2022 Characteristics of the natural open fractures on the oil and gas reservoirs is crucial in drilling and production planning. Direct methods of fractures studies such as core analysis and image log interpretation are usually not performed in all drilled ...
Hassan Bagheri, Reza Falahat
doaj +1 more source
Multilingual log analysis: LogCLEF [PDF]
, 2011 The current lack of recent and long-term query logs makes the verifiability and repeatability of log analysis experiments very limited. A first attempt in this direction has been made within the Cross-Language Evaluation Forum in 2009 in a track named ...
Nunzio, Giorgio Maria Di +8 more
core +2 more sources
, 2022 Log-log plot of the complementary cumulative distribution functions of the number of followers and number of friends.
Lu Guan (2026915) +4 more
core +1 more source
IET Image Processing, 2021 Many biomedical applications require accurate non‐rigid image registration that can cope with complex deformations. However, popular diffeomorphic Demons registration algorithms suffer from difficulties for complex and serious distortions since they only
Xiaogang Du +5 more
doaj +1 more source
Physical Simulation of Ultrasonic Imaging Logging Response
Sensors, 2022 Ultrasonic imaging logging can visually identify the location, shape, dip angle and orientation of fractures and holes. The method has not been effectively applied in the field; one of the prime reasons is that the results of physical simulation experiments are insufficient.
Lu, Junqiang +6 more
openaire +3 more sources
Improving Petrophysical Interpretation of Conventional Log by Determination of Real Bed Boundaries [PDF]
Journal of Sciences, Islamic Republic of Iran, 2017 Proper determination of bed boundaries in layered reservoirs is vital for accurate petrophysical interpretation of conventional logs. In the wellbore, logs continuously measure physical properties of reservoir while the properties change stepwise ...
F. Khoshbakht +2 more
doaj
Fingerprint image enhancement using multiple filters [PDF]
PeerJ Computer Science, 2023 Biometrics is the measurement of an individual’s distinctive physical and behavioral characteristics. In comparison to traditional token-based or knowledge-based forms of identification, biometrics such as fingerprints, are more reliable.
Haroon Shams +5 more
doaj +2 more sources
Hyperspectral Image Denoising With Log-Based Robust PCA [PDF]
2021 IEEE International Conference on Image Processing (ICIP), 2021 It is a challenging task to remove heavy and mixed types of noise from Hyperspectral images (HSIs). In this paper, we propose a novel nonconvex approach to RPCA for HSI denoising, which adopts the log-determinant rank approximation and a novel $\ell_{2,\log}$ norm, to restrict the low-rank or column-wise sparse properties for the component matrices ...
Yang Liu +4 more
openaire +3 more sources
Earthquake Research Advances, 2022 Shallow conductive heterogeneity can lead to static shifts ain the apparent resistivity sounding curve of controlled-source audio-frequency magnetotellurics (CSAMT).
Enhua Jiang +4 more
doaj +1 more source