Results 11 to 20 of about 13,016,053 (384)
LED Receiver Impedance and Its Effects on LED-LED Visible Light Communications [PDF]
2018 IEEE International Conference on Communications Workshops (ICC Workshops), 2018 This paper experimentally demonstrates that the AC impedance spectrum of the LED as a photodetector heavily depends on the received optical power, which may cause the impedance mismatch between the LED and the post trans-impedance amplifier. The optical power dependent impedance of the LED is well fitted by a modified dispersive carrier transport model
Li, Shangbin +2 more
openaire +3 more sources
Remote plasmonic-enhanced Raman spectroscopy with the plasmon-molecule coupling in distance over 100 nm [PDF]
EPJ Web of Conferences, 2023 We propose remote plasmonic-enhanced Raman scattering (RPERS) spectroscopy for molecular sensing and imaging applications. RPERS requires no contact between analyte molecules and metallic nanostructures, which overcomes the limitations of surface ...
Minamikawa Takeo +7 more
doaj +1 more source
Characterizing long COVID in an international cohort: 7 months of symptoms and their impact
EClinicalMedicine, 2021 Background: A significant number of patients with COVID-19 experience prolonged symptoms, known as Long COVID. Few systematic studies have investigated this population, particularly in outpatient settings.
Hannah E. Davis +8 more
doaj +1 more source
Recovery of Copper and Cyanide from Copper-cyanide Solution by Direct Electrolysis [PDF]
E3S Web of Conferences, 2021 Using direct electrolysis method, the recovery of copper and cyanide from high concentration copper cyanide solution was researched. The distribution of copper cyanide species was calculated by stability constants and balance equation. The results showed
Gao Teng-Yue, Xu Chao, Qin Guang-Lin
doaj +1 more source
Patient-Led Research Collaborative: embedding patients in the Long COVID narrative
PAIN Reports, 2021 . A large subset of patients with coronavirus disease 2019 (COVID-19) are experiencing symptoms well beyond the claimed 2-week recovery period for mild cases. These long-term sequelae have come to be known as Long COVID.
Lisa McCorkell +4 more
doaj +1 more source
LED–LED portable oxygen gas sensor [PDF]
Analytical and Bioanalytical Chemistry, 2012 A portable instrument for oxygen determination, based on the quenching of phosphorescent octaethylporphyrin by gaseous O(2), has been developed using the fluorimetric paired emitter-detector diode technique (FPEDD). The instrument configuration consists of two light-emitting diodes (LEDs) facing each other, with an interchangeable support containing a ...
Perez de Vargas-Sansalvador, Isabel M. +5 more
openaire +4 more sources
The merger that led to the formation of the Milky Way’s inner stellar halo and thick disk [PDF]
Nature, 2018 The assembly of our Galaxy can be reconstructed using the motions and chemistry of individual stars1,2. Chemo-dynamical studies of the stellar halo near the Sun have indicated the presence of multiple components3, such as streams4 and clumps5, as well as
A. Helmi +5 more
semanticscholar +1 more source
Journal of Plant Growth Regulation, 2021 Light quantity (intensity and photoperiod) and quality (spectral composition) affect plant growth and physiology and interact with other environmental parameters and cultivation factors in determining the plant behaviour.
R. Paradiso, S. Proietti
semanticscholar +1 more source
Clinical Case Reports, 2021 PBMT using 630 + 660 nm wavelengths transcutaneously at 7 cm above chest area irradiating lungs and heart regions of patients with acute, infectious respiratory syndrome alleviated their respiratory symptoms, mitigated pulmonary inflammation and hypoxia.
Michèle Pelletier‐Aouizerate +1 more
doaj +1 more source
Frontiers in Rehabilitation Sciences, 2023 Long COVID disproportionately affects premenopausal women, but relatively few studies have examined Long COVID's impact on female reproductive health. We conduct a review of the literature documenting the female reproductive health impacts of Long COVID ...
Beth Pollack +7 more
doaj +1 more source