Results 21 to 30 of about 103,620 (267)

An Implementation of Open Source-Based Software as a Service (SaaS) to Produce TOA and TOC Reflectance of High-Resolution KOMPSAT-3/3A Satellite Image

open access: yesRemote Sensing, 2021
The majority of cloud applications are created or delivered to provide users with access to system resources or prebuilt processing algorithms for efficient data storage, management, and production.
Kwangseob Kim, Kiwon Lee
doaj   +1 more source

Generation of a Synthetic Database for the Optical Response of One-Dimensional Photonic Crystals Using Genetic Algorithms

open access: yesMathematics, 2022
This work proposes an optimization tool based on genetic algorithms for the inverse design of photonic crystals. Based on target reflectance, the algorithm generates a population of chromosomes where the genes represent the thickness of a layer of a ...
Cesar Isaza   +5 more
doaj   +1 more source

Development of a Colorimetric Sensor for Autonomous, Networked, Real-Time Application

open access: yesSensors, 2020
This review describes an ongoing effort intended to develop wireless sensor networks for real-time monitoring of airborne targets across a broad area. The goal is to apply the spectrophotometric characteristics of porphyrins and metalloporphyrins in a ...
Brandy J. Johnson   +2 more
doaj   +1 more source

A set of empirical equations describing the observed colours of metal–anodic aluminium oxide–Al nanostructures

open access: yesBeilstein Journal of Nanotechnology, 2020
Structural colours have received a lot of attention regarding the reproduction of the vivid colours found in nature. In this study, metal–anodic aluminium oxide (AAO)–Al nanostructures were deposited using a two-step anodization and sputtering process to
Cristina V. Manzano   +5 more
doaj   +1 more source

Estimation of Leaf Water Content of a Fruit Tree by In Situ Vis-NIR Spectroscopy Using Multiple Machine Learning Methods in Southern Xinjiang, China

open access: yesAgronomy
Water scarcity is one of the most significant environmental factors that inhibits photosynthesis and decreases the growth and productivity of plants. Using the deep learning convolutional neural network (CNN) model, this study evaluates the ability of ...
Jintao Cui   +4 more
doaj   +1 more source

Study on the Physicochemical Characteristics of CI Disperse Blue 56 Dyeing on Polylactide [PDF]

open access: yesNanochemistry Research
Attention to biopolymers has been increased owing to growing environmental awareness, rising crude oil prices, and challenges related to global warming.
Farnaz Sadat Fattahi
doaj   +1 more source

A Solar Trajectory Model for Multi-Spectral Image Correction of DOM from Long-Endurance UAV in Clear Sky

open access: yesDrones
Extracting accurate surface reflectance from multispectral UAV (unmanned aerial vehicle) imagery is a fundamental task in remote sensing. However, most studies have focused on short-endurance UAVs, with limited attention given to long-endurance UAVs due ...
Siyao Wu   +5 more
doaj   +1 more source

Bark spectral signatures of one-year-old twigs of different shrubs mainly depend on their biochemical traits

open access: yesActa Biologica Slovenica, 2021
The interaction of bark with light depends on the optical properties of the bark, which are important for plant energy balance especially out of the vegetation season.
Mateja Grašič   +3 more
doaj   +1 more source

Detecting Symptoms and Dispersal of Pine Tortoise Scale Pest in an Urban Forest by Remote Sensing

open access: yesLand
Forests provide essential ecosystem services but face increasing threats from invasive species like Toumeyella parvicornis (pine tortoise scale). Since its introduction to Italy in 2014, this pest has severely impacted Pinus pinea forests, with a major ...
Marco Bascietto   +6 more
doaj   +1 more source

Bloch Modes and Evanescent Modes of Photonic Crystals: Weak Form Solutions Based on Accurate Interface Triangulation

open access: yesCrystals, 2015
We propose a new approach to calculate the complex photonic band structure, both purely dispersive and evanescent Bloch modes of a finite range, of arbitrary three-dimensional photonic crystals.
Matthias Saba, Gerd E. Schröder-Turk
doaj   +1 more source

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