Results 31 to 40 of about 14,940 (225)

Cement bond evaluation using well logs: A case study in Raniganj Block Durgapur, West Bengal, India

open access: yesJournal of Petroleum Exploration and Production Technology, 2021
Cement bond logs (CBL) and variable density log (VDL) are one of the vital logging techniques used to evaluate cement-casing-formation bonds before the well testing or execution of the production operation in the well.
Prashant Saini   +2 more
doaj   +1 more source

Neoplasia and Proliferative Lesions of New World Camelids: A Systematic Literature Review and Retrospective Study of Cases Submitted to Colorado State University From 1995 to 2020

open access: yesFrontiers in Veterinary Science, 2021
Camelid pathology submissions to veterinary diagnostic laboratories are on the rise given the increasing popularity and population of llamas and alpacas especially in the western United States.
Tawfik A. Aboellail   +4 more
doaj   +1 more source

Adaptive Antenna Null Broadening Beamforming against Array Calibration Error Based on Adaptive Variable Diagonal Loading

open access: yesInternational Journal of Antennas and Propagation, 2017
An approach for null broadening beamforming is proposed based on adaptive variable diagonal loading (VDL) and combined with the covariance matrix taper (CMT) approach, aiming at improving the robustness of adaptive antenna null broadening beamforming ...
Wenxing Li, Yu Zhao, Qiubo Ye, Bin Yang
doaj   +1 more source

Simultaneous Multiscale Data Assimilation Using Scale‐ and Variable‐Dependent Localization in EnVar for Convection Allowing Analyses and Forecasts: Methodology and Experiments for a Tornadic Supercell

open access: yesJournal of Advances in Modeling Earth Systems, 2023
This study introduces a simultaneous multiscale data assimilation method by implementing model space spatial scale‐dependent localization (SDL) and variable‐dependent localization (VDL) within an ensemble variational system.
Yongming Wang, Xuguang Wang
doaj   +1 more source

‘At-risk’ places: inequities in the distribution of environmental stressors and prescription rates of mental health medications in Glasgow, Scotland

open access: yesEnvironmental Research Letters, 2015
Using geospatial analytical methods, this study examines the association between one aspect of the built environment, namely, the concentration of vacant and derelict land (VDL), and the prevalence of mental health disorders (using the proxy variable of ...
Juliana Maantay, Andrew Maroko
doaj   +1 more source

Unleashing the power of generative adversarial networks: A novel machine learning approach for vehicle detection and localisation in the dark

open access: yesCognitive Computation and Systems, 2023
Machine vision in low‐light conditions is a critical requirement for object detection in road transportation, particularly for assisted and autonomous driving scenarios.
Md Saif Hassan Onim   +3 more
doaj   +1 more source

Spectrum of stochastic adding machines and fibered Julia sets

open access: yes, 2012
Consider the basic algorithm to perform the transformation n--> n+1 changing digits of the d-adic expansion of n one by one. We obtain a family of Markov chains on the non-negative integers through sucessive and independent applications of the algorithm ...
Messaoudi, Ali   +2 more
core   +4 more sources

An Algorithm for Network and Data-aware Placement of Multi-Tier Applications in Cloud Data Centers

open access: yes, 2017
Today's Cloud applications are dominated by composite applications comprising multiple computing and data components with strong communication correlations among them.
Buyya, Rajkumar   +3 more
core   +1 more source

Analysing the Actual Use of Controller–Pilot Data Link Communications

open access: yesEngineering Proceedings, 2023
Controller–pilot data link communications (CPDLC) is a digital protocol and part of air navigation systems where Air Traffic Control (ATC) can text an aircraft instead of engaging in voice communications.
Erwin Orye, Gabor Visky, Olaf Maennel
doaj   +1 more source

The economical 3-3-1 model revisited

open access: yes, 2018
We show that the economical 3-3-1 model poses a very high new physics scale of the order of 1000~TeV due to the constraint on the flavor-changing neutral current.
Dong, P. V.   +3 more
core   +1 more source

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