Results 61 to 70 of about 132,205 (161)

Photonic monitoring of atmospheric fauna [PDF]

open access: yes, 2022
Insects play a quintessential role in the Earth’s ecosystems and their recent decline in abundance and diversity is alarming. Monitoring their population is paramount to understand the causes of their decline, as well as to guide and evaluate the ...
Genoud, Adrien P.
core   +1 more source

Sensor for PCB warping measurement [PDF]

open access: yes, 2022
Tato práce představuje metodu pro detekci deformace DPS založenou na vláknovývh senzorech posunutí, založenou na tradiční metodě měření deformace DPS s mramorovým měřicím stolem.
Dingyuan Yao
core  

Inelastic hyperspectral lidar for aquatic ecosystems monitoring and landscape plant scanning test

open access: yesEPJ Web of Conferences, 2018
We have developed an aquatic inelastic hyperspectral lidar with unrestricted focal-depth and enough sensitivity and spatio-temporal resolution to detect and resolve position and behavior of individual sub-millimeter aquatic organisms.
Zhao Guangyu   +7 more
doaj   +1 more source

Characterisation of a new Laser Guide Star Wavefront Sensor [PDF]

open access: yes, 2023
openAdaptive Optics (AO) is a technology that improves the resolution of large telescopes by correcting aberrations introduced by the Earth’s atmosphere, enabling them to capture sharper astronomical images.
GOMES MACHADO, TANIA SOFIA
core  

Insect remote sensing using a polarization sensitive cw lidar system in chinese rice fields

open access: yesEPJ Web of Conferences, 2018
A joint Chinese-Swedish field campaign of Scheimpflug continuous-wave lidar monitoring of rice-field flying pest insects was pursued in very hot July weather conditions close to Guangzhou, China.
Zhu Shiming   +16 more
doaj   +1 more source

Effects of wind shear and thrust coefficient on the induction zone of a porous disk: A wind tunnel study

open access: yesWind Energy, Volume 27, Issue 8, Page 749-766, August 2024.
Abstract Neglecting the velocity reduction in the induction zone of wind turbines can lead to overestimates of power production predictions, and, thus, of the annual energy production for a wind farm. An experimental study on the induction zone associated with wind turbine operations is performed in the boundary‐layer test section of the BLAST wind ...
Wasi Uddin Ahmed, Giacomo Valerio Iungo
wiley   +1 more source

Short-Wave Infrared Lidar on Atmospheric Aerosols and Insects [PDF]

open access: yes, 2017
This thesis focusses on the implementation of two elastic lidar (light detection and ranging) techniques for the monitoring of atmospheric aerosols and insects at short-wave infrared wavelengths.
Andersson, Mariam
core  

Fotogrametría para minimizar la imprecisión en la recopilación de datos en levantamientos arquitectónicos monumentales, 2023 [PDF]

open access: yes, 2023
Esta investigación abordó el problema del relevamiento arquitectónico monumental para su estudio o análisis el cual, generalmente se realiza de manera manual, ya que las instituciones no tienen personas calificadas o no cuentan con los instrumentos ...
Cosmopolis Lora, Constantino
core   +2 more sources

Photogrammetry as a New Scientific Tool in Archaeology: Worldwide Research Trends [PDF]

open access: yes, 2021
Archaeology has made significant advances in the last 20 years. This can be seen by the remarkable increase in specialised literature on all archaeology-related disciplines.
Manzano Agugliaro, Francisco   +3 more
core  

Digital Multispectral Map Reconstruction Using Aerial Imagery [PDF]

open access: yes, 2021
Advances made in the computer vision field allowed for the establishment of faster and more accurate photogrammetry techniques. Structure from Motion(SfM) is a photogrammetric technique focused on the digital spatial reconstruction of objects based on a
Vong, André Agostinho Cheang do Rosário
core  

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