Zobrazeno 1 - 10
of 20 622
pro vyhledávání: '"full width at half maximum"'
Publikováno v:
International Journal of Optomechatronics, Vol 18, Iss 1 (2024)
LEDs employed in portable device flashes are Lambertian light sources, additional optical components such as Fresnel lenses and reflector cups must be incorporated to adjust the light distribution. This results in a need for a certain module thicknes
Externí odkaz:
https://doaj.org/article/e132a0f727fa40058ba7a0489b080a03
Publikováno v:
Frontiers in Cell and Developmental Biology, Vol 12 (2024)
BackgroundTo investigate the correlation between retinal vascular changes and ICA stenosis by measuring retinal vessels using full-width-at-half-maximum (FWHM) and intelligent image recognition.MethodsThis research selected patients who were admitted
Externí odkaz:
https://doaj.org/article/64df731f27e9488199e73befcd7af570
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 20150-20163 (2024)
Image sharpness assesses detail visibility in remote-sensing images and measures sensors' details resolution capability. Sensor aging and environmental changes can degrade image sharpness and quality. The Gaofen (GF) satellites provide diverse remote
Externí odkaz:
https://doaj.org/article/63a00fe3f17c43818bd7061d3e998753
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 5565-5579 (2024)
This article reports on the long-term variation of the spectral smile and the full-width at half-maximum (FWHM) of the sensor response function for the Hyperspectral Imager Suite (HISUI) onboard the International Space Station (ISS). HISUI is an opti
Externí odkaz:
https://doaj.org/article/f04a15d023a84a8eaea04b888603ebbd
Publikováno v:
Molecules, Vol 29, Iss 20, p 4787 (2024)
To obtain carbon dots (CDs) with narrow full width at half maximum (FWHM) and long-wavelength emission, carbon sources with high conjugate sizes and abundant functional groups can be employed to synthesize CDs. In this study, orange-emissive carbon d
Externí odkaz:
https://doaj.org/article/9c9aa5162948473f870c8f0743947b81
Autor:
M. Sasani Ghamsari, M.M. Arghavan
Publikováno v:
Heliyon, Vol 10, Iss 12, Pp e33139- (2024)
The distinctive photophysical characteristics possessed by lanthanides, including europium, neodymium, and ytterbium, render them adaptable molecular tools for studying biological systems. Specifically, their enduring photoluminescence, precise emiss
Externí odkaz:
https://doaj.org/article/aac8a32cdde64e6da6ecfe8a57b99110
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
Hollow beam is a peculiar structure beam, which has been widely used in various areas. Here, we propose a novel diffraction optical element to generate tunable hollow beams. This element is composed of periodic concentric rings. The phase of each rin
Externí odkaz:
https://doaj.org/article/5eff1068f92d49abb3cd0fb7298edbac
Autor:
Jia-Peng Wang, Mei-Ting Yu, Bo-Lun Xu, Jin-Ping Hua, Li-Gang Jiang, Jian-Tao Wang, Wei-Hua Yang, Yu-Hua Tong
Publikováno v:
International Journal of Ophthalmology, Vol 16, Iss 5, Pp 671-679 (2023)
AIM: To measure the retinal vessels of primary open angle glaucoma (POAG) patients on spectral domain optical coherence tomography (SD-OCT) with a full-width at half-maximum (FWHM) algorithm to better explore their structural changes in the pathogene
Externí odkaz:
https://doaj.org/article/35a42549a59c4dabbbae07e4a18cfed5
Publikováno v:
Sensors, Vol 24, Iss 13, p 4260 (2024)
Hyperspectral imaging was used to predict the total polyphenol content in low-temperature stressed tomato seedlings for the development of a multispectral image sensor. The spectral data with a full width at half maximum (FWHM) of 5 nm were merged to
Externí odkaz:
https://doaj.org/article/0fa5747cbaea4fbd96cecf3d3a09cc83
Autor:
Irene Pi-Martín, Alejandro Cebrecos, Juan J. García-Garrigós, Noé Jiménez, Francisco Camarena
Publikováno v:
Photoacoustics, Vol 34, Iss , Pp 100576- (2023)
Limitations associated with linear-array probes in photoacoustic tomography are partially compensated by using advanced beamformers that exploit the temporal and spatial coherence of the recorded signals, such as Delay Multiply and Sum (DMAS), Minimu
Externí odkaz:
https://doaj.org/article/69b9fde4b162416da94d32017e7fc6dd