Results 11 to 20 of about 4,950,651 (314)

Characterization of RGB LEDs as Emitter and Photodetector for LED-to-LED Communication [PDF]

open access: yes2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), 2020
Visible Light Communication (VLC) has rapidly grown over the last decade. However, unlike RF technologies, VLC has a simplex channel since two different devices are used for transmitting and receiving. This increases the cost and complexity of the transceiver circuit when a bidirectional link is required.
Mariam M. Galal   +3 more
openaire   +1 more source

Remote plasmonic-enhanced Raman spectroscopy with the plasmon-molecule coupling in distance over 100 nm [PDF]

open access: yesEPJ 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

open access: yesEClinicalMedicine, 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

Patient-Led Research Collaborative: embedding patients in the Long COVID narrative

open access: yesPAIN 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

Recovery of Copper and Cyanide from Copper-cyanide Solution by Direct Electrolysis [PDF]

open access: yesE3S 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

LED-to-LED based VLC systems [PDF]

open access: yesProceedings of the Workshop on Internet of Lights, 2021
Visible light communication (VLC) is an emerging short-range wireless communication technology using the unlicensed light spectrum. Light Emitting Diode (LED) is used as VLC transmitter, while photodiodes or image sensors are used as receiver, depending on the applications and hardware constraints.
Muhammad Sarmad Mir   +4 more
openaire   +4 more sources

Early cases of acute infectious respiratory syndrome treated with photobiomodulation, diagnosis and intervention: Two case reports

open access: yesClinical 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

Female reproductive health impacts of Long COVID and associated illnesses including ME/CFS, POTS, and connective tissue disorders: a literature review

open access: yesFrontiers 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

Angular Color Uniformity Enhancement for Color-Mixed LEDs by Introducing a Diffusing Coating Layer

open access: yesIEEE Photonics Journal, 2020
In this study, a simple and low-cost method is proposed to enhance angular color uniformity (ACU) of color-mixed light-emitting diodes (cm-LEDs) by introducing a diffuse coating layer.
Xin Zhu   +5 more
doaj   +1 more source

Real-time hybrid angular-interrogation surface plasmon resonance sensor in the near-infrared region for wide dynamic range refractive index sensing

open access: yesScientific Reports, 2023
Herein, we integrated angle-scanning surface plasmon resonance (SPR) and angle-fixed SPR as a hybrid angular-interrogation SPR to enhance the sensing performance.
Hidenori Koresawa   +8 more
doaj   +1 more source

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