Results 1 to 10 of about 46,487 (202)
Field diagnostic techniques to determine nitrogen in maize
Terra Latinoamericana, 2021 Few technologies are available to quantify crop's nutritional status during their vegetative cycle, such as in maize. Semiquantitative alternatives could replace the laboratory foliar analysis's classical approach for measuring nitrogen (N) in maize (Zea
Eduhin Roacho-Cortés +2 more
doaj +1 more source
Photon Counting and Direct ToF Camera Prototype Based on CMOS SPADs [PDF]
, 2017 This paper presents a camera prototype for 2D/3D image capture in low illumination conditions based on single-photon avalanche-diode (SPAD) image sensor for direct time-offlight (d-ToF).
Carmona Galán, Ricardo +2 more
core +1 more source
, 2020 Emerging single-photon-sensitive sensors combined with advanced inverse methods to process picosecond-accurate time-stamped photon counts have given rise to unprecedented imaging capabilities.
Faccio, D., Velten, A., Wetzstein, G.
core +1 more source
Analysis of detector performance in a gigahertz clock rate quantum key distribution system [PDF]
, 2011 We present a detailed analysis of a gigahertz clock rate environmentally robust phase-encoded quantum key distribution (QKD) system utilizing several different single-photon detectors, including the first implementation of an experimental resonant cavity
+29 more
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3.3 Gigahertz Clocked Quantum Key Distribution System [PDF]
, 2005 A fibre-based quantum key distribution system operating up to a clock frequency of 3.3GHz is presented. The system demonstrates significantly increased key exchange rate potential and operates at a wavelength of 850nm.Comment: Presented at ECOC 05 ...
Buller, Gerald S. +6 more
core +2 more sources
Wide-Range Optical CMOS-Based Diagnostics [PDF]
, 2017 Colorimetric, chemiluminescence and refractive index based diagnostics are some of the most important sensing techniques in biomedical science and clinical medicine.
Al-Rawhani, Mohammed A. +6 more
core +1 more source
Depth estimation in SPAD-based LIDAR sensors
Optics Express, 2023 In direct time-of-flight (D-TOF) light detection and ranging (LIDAR), accuracy and full-scale range (FSR) are the main performance parameters to consider. Particularly, in single-photon avalanche diodes (SPAD) based systems, the photon-counting statistics plays a fundamental role in determining the LIDAR performance.
Chen, Mingzhe (author) +2 more
openaire +4 more sources
Response of spring wheat to different soil and foliar fertilization [PDF]
Journal of Central European Agriculture, 2017 In the years 2013-2015 a field experiment was carried out, whose aim was to determine the response of spring wheat cultivar Arabella to different levels of soil fertilization with NPK and foliar feeding Plonvit Zboża.
Wacław JARECKI +2 more
doaj +1 more source
Vehicular Visible Light Communications with SPAD Receivers
2019 IEEE Wireless Communications and Networking Conference (WCNC), 2019 Light emitting diodes (LEDs) are increasingly used in automotive exterior lighting. The expected wide availability of LED-based front and back lights makes visible light communication (VLC) a natural vehicular connectivity solution. A major challenge in vehicular VLC systems is their relatively poor performance in adverse weather conditions such as ...
Karbalayghareh, Mehdi +3 more
openaire +2 more sources
Remote Sensing, 2019 Compared to conventional laboratory testing methods, crop nitrogen estimation methods based on canopy spectral characteristics have advantages in terms of timeliness, cost, and practicality. A variety of rapid and non-destructive estimation methods based
Hongjun Li +4 more
doaj +1 more source