Aerospace engineering ≈ Aerospace engineering
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Google Earth Engine: Planetary-scale geospatial analysis for everyone Open
El presente artículo evidencia principalmente los beneficios de la plataforma Google Earth Engine para el análisis a nivel planetario del clima y la superficie de la tierra. El catálogo de varios petabytes de imágenes satelitales, con un r…
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Overview of the Coupled Model Intercomparison Project Phase 6 (CMIP6) experimental design and organization Open
By coordinating the design and distribution of global climate model simulations of the past, current, and future climate, the Coupled Model Intercomparison Project (CMIP) has become one of the foundational elements of climate science. Howe…
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MobileNets: Efficient Convolutional Neural Networks for Mobile Vision Applications Open
We present a class of efficient models called MobileNets for mobile and embedded vision applications. MobileNets are based on a streamlined architecture that uses depth-wise separable convolutions to build light weight deep neural networks…
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The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2) Open
The Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2), is the latest atmospheric reanalysis of the modern satellite era produced by NASA’s Global Modeling and Assimilation Office (GMAO). MERRA-2 assimilat…
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YOLOv3: An Incremental Improvement Open
We present some updates to YOLO! We made a bunch of little design changes to make it better. We also trained this new network that's pretty swell. It's a little bigger than last time but more accurate. It's still fast though, don't worry. …
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The climate hazards infrared precipitation with stations—a new environmental record for monitoring extremes Open
The Climate Hazards group Infrared Precipitation with Stations (CHIRPS) dataset builds on previous approaches to ‘smart’ interpolation techniques and high resolution, long period of record precipitation estimates based on infrared Cold Clo…
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An overview of gradient descent optimization algorithms Open
Gradient descent optimization algorithms, while increasingly popular, are often used as black-box optimizers, as practical explanations of their strengths and weaknesses are hard to come by. This article aims to provide the reader with int…
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Distance-IoU Loss: Faster and Better Learning for Bounding Box Regression Open
Bounding box regression is the crucial step in object detection. In existing methods, while ℓn-norm loss is widely adopted for bounding box regression, it is not tailored to the evaluation metric, i.e., Intersection over Union (IoU). Recen…
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ERA5-Land: a state-of-the-art global reanalysis dataset for land applications Open
Framed within the Copernicus Climate Change Service (C3S) of the European Commission, the European Centre for Medium-Range Weather Forecasts (ECMWF) is producing an enhanced global dataset for the land component of the fifth generation of …
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YOLOX: Exceeding YOLO Series in 2021 Open
In this report, we present some experienced improvements to YOLO series, forming a new high-performance detector -- YOLOX. We switch the YOLO detector to an anchor-free manner and conduct other advanced detection techniques, i.e., a decoup…
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The 30 m annual land cover dataset and its dynamics in China from 1990 to 2019 Open
Land cover (LC) determines the energy exchange, water and carbon cycle between Earth's spheres. Accurate LC information is a fundamental parameter for the environment and climate studies. Considering that the LC in China has been altered d…
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Estimating the asymptomatic proportion of coronavirus disease 2019 (COVID-19) cases on board the Diamond Princess cruise ship, Yokohama, Japan, 2020 Open
On 5 February 2020, in Yokohama, Japan, a cruise ship hosting 3,711 people underwent a 2-week quarantine after a former passenger was found with COVID-19 post-disembarking. As at 20 February, 634 persons on board tested positive for the ca…
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An Illustrated User Guide to the World Input–Output Database: the Case of Global Automotive Production Open
This article provides guidance to prudent use of the World Input–Output Database ( WIOD ) in analyses of international trade. The WIOD contains annual time‐series of world input–output tables and factor requirements covering the period fro…
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Improvements to the <span>APBS</span> biomolecular solvation software suite Open
The Adaptive Poisson–Boltzmann Solver (APBS) software was developed to solve the equations of continuum electrostatics for large biomolecular assemblages that have provided impact in the study of a broad range of chemical, biological, and …
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Significant Remote Sensing Vegetation Indices: A Review of Developments and Applications Open
Vegetation Indices (VIs) obtained from remote sensing based canopies are quite simple and effective algorithms for quantitative and qualitative evaluations of vegetation cover, vigor, and growth dynamics, among other applications. These in…
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An Overview on 3D Printing Technology: Technological, Materials, and Applications Open
Digital fabrication technology, also referred to as 3D printing or additive manufacturing, creates physical objects from a geometrical representation by successive addition of materials. 3D printing technology is a fast-emerging technology…
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A Review of Global Precipitation Data Sets: Data Sources, Estimation, and Intercomparisons Open
In this paper, we present a comprehensive review of the data sources and estimation methods of 30 currently available global precipitation data sets, including gauge‐based, satellite‐related, and reanalysis data sets. We analyzed the discr…
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Scientific Machine Learning Through Physics–Informed Neural Networks: Where we are and What’s Next Open
Physics-Informed Neural Networks (PINN) are neural networks (NNs) that encode model equations, like Partial Differential Equations (PDE), as a component of the neural network itself. PINNs are nowadays used to solve PDEs, fractional equati…
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Optical Communication in Space: Challenges and Mitigation Techniques Open
—In recent years, free space optical (FSO)
\ncommunication has gained significant importance owing to
\nits unique features: large bandwidth, license free spectrum, high
\ndata rate, easy and quick deployability, less power and low
\nmass …
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Nanozyme: new horizons for responsive biomedical applications Open
Nanozymes are nanomaterial-based artificial enzymes.
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Plasma–liquid interactions: a review and roadmap Open
Plasma–liquid interactions represent a growing interdisciplinary area of research involving plasma science, fluid dynamics, heat and mass transfer, photolysis, multiphase chemistry and aerosol science. This review provides an assessment of…
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Improved protein structure prediction using predicted interresidue orientations Open
The prediction of interresidue contacts and distances from coevolutionary data using deep learning has considerably advanced protein structure prediction. Here, we build on these advances by developing a deep residual network for predictin…
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Fiber-Reinforced Polymer Composites: Manufacturing, Properties, and Applications Open
Composites have been found to be the most promising and discerning material available in this century. Presently, composites reinforced with fibers of synthetic or natural materials are gaining more importance as demands for lightweight ma…
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Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems Open
Spin-orbit coupling in inversion-asymmetric magnetic crystals and structures has emerged as a powerful tool to generate complex magnetic textures, interconvert charge and spin under applied current, and control magnetization dynamics. Curr…
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The collection 6 MODIS active fire detection algorithm and fire products Open
The two Moderate Resolution Imaging Spectroradiometer (MODIS) instruments, on-board NASA's Terra and Aqua satellites, have provided more than a decade of global fire data. Here we describe improvements made to the fire detection algorithm …
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End-to-End Training of Deep Visuomotor Policies Open
Policy search methods can allow robots to learn control policies for a wide range of tasks, but practical applications of policy search often require hand-engineered components for perception, state estimation, and low-level control. In th…
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Commercialization of Lithium Battery Technologies for Electric Vehicles Open
The currently commercialized lithium‐ion batteries have allowed for the creation of practical electric vehicles, simultaneously satisfying many stringent milestones in energy density, lifetime, safety, power, and cost requirements of the e…
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Over-the-Air Deep Learning Based Radio Signal Classification Open
We conduct an in depth study on the performance of deep learning based radio\nsignal classification for radio communications signals. We consider a rigorous\nbaseline method using higher order moments and strong boosted gradient tree\nclas…
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A commentary review on the use of normalized difference vegetation index (NDVI) in the era of popular remote sensing Open
The Normalized Difference Vegetation Index (NDVI), one of the earliest remote sensing analytical products used to simplify the complexities of multi-spectral imagery, is now the most popular index used for vegetation assessment. This popul…
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ITRF2014: A new release of the International Terrestrial Reference Frame modeling nonlinear station motions Open
For the first time in the International Terrestrial Reference Frame (ITRF) history, the ITRF2014 is generated with an enhanced modeling of nonlinear station motions, including seasonal (annual and semiannual) signals of station positions a…