Evaluation of commercial Mg(OH)2, Al(OH)3 and TiO2 as antimicrobial additives in thermoplastic elastomers

Pittol, Michele; Tomacheski, Daiane; Simões, Douglas Naue; Ribeiro, Vanda Ferreira; Santana, Ruth Marlene Campomanes

doi:10.1080/14658011.2017.1314412

Cited by 13 publications

(8 citation statements)

References 37 publications

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“…In a turbid water link, B-light suffers from greater scattering, and its advantage in terms of less absorption is not obvious. In conclusion, B-light is better for a piped water-air-piped water interface, whereas R-light is better for a turbid water-air-turbid water interface 30,31 . transmission and that through m free-space transmission with 8.8 m piped water-air-piped water link.…”

Section: Resultsmentioning

confidence: 85%

A 400-Gb/s WDM-PAM4 OWC System Through the Free- Space Transmission With a Water-Air-Water Link

Huang

et al. 2021

Preprint

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A 400-Gb/s wavelength-division-multiplexing (WDM) four-level pulse amplitude modulation (PAM4) optical wireless communication (OWC) system through a 200-m free-space transmission with either an 8.8-m piped water-air-piped water link or a 6.5-m turbid water-air-turbid water link is attainably constructed. Incorporating PAM4 modulation with an 8-wavelength WDM scheme greatly increases the total transmission rate of the WDM-PAM4 OWC system to 400 Gb/s (50 Gb/s/λ × 8 λs). By employing doublet lenses in free-space transmission, a laser beam reducer/expander and a reflective spatial light modulator (SLM) with an angle expander through the water-air-water link, high bit error rate performance and acceptable PAM4 eye diagrams are obtained. Using a reflective SLM with an angle expander not only adaptively adjusts the laser beam, but also effectively solves the marine engineering problems. This demonstrated WDM-PAM4 OWC system outperforms existing OWC systems through free-space transmission with an air-water-air link due to its ability to resolve the practical engineering problems in actual marine environments.

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Section: Resultsmentioning

confidence: 85%

A 400-Gb/s WDM-PAM4 OWC System Through the Free- Space Transmission With a Water-Air-Water Link

Huang

et al. 2021

Preprint

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“…The rectangular water tank is filled with clear ocean water with a particle concentration of 3.86 g/m 3 . The particle concentration of clear ocean water is produced with suspensions of Al(OH) 3 and Mg(OH) 2 , which is acquired by inserting a commercial antacid preparation (Maalox) [29], [30]. It is usually utilized in a laboratory experiment for providing the required particle concentration.…”

Section: Methodsmentioning

confidence: 99%

A WDM PAM4 FSO–UWOC Integrated System With a Channel Capacity of 100 Gb/s

Huang

et al. 2020

J. Lightwave Technol.

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A wavelength-division-multiplexing (WDM) fourlevel pulse amplitude modulation (PAM4) free-space optical (FSO)-underwater wireless optical communication (UWOC) integrated system with a channel capacity of 100 Gb/s is proposed and attainably demonstrated. Analytic results reveal that 1.8-GHz 405-nm blue-violet-light and 1.7-GHz 450-nm blue-light laser diodes (LDs) with two-stage light injection and optoelectronic feedback techniques are competently adopted for 100 Gb/s PAM4 signal transmission through a 500-m free-space transmission with 5-m clear ocean underwater link. Combining dual-wavelength WDM scenario with PAM4 modulation, the channel capacity of FSO-UWOC integrated systems is significantly enhanced with an aggregate transmission rate of 100 Gb/s (25 Gbaud PAM4/wavelength × 2 wavelengths). With doublet lenses in FSO, laser beam reducer and transmissive spatial light modulator in UWOC, a sufficiently low bit error rate of 10 −9 and acceptable PAM4 eye diagrams are acquired. This demonstrated 100 Gb/s PAM4 FSO-UWOC integrated system with a WDM scenario is advantageous for the enhancement of a high-speed optical wireless link with long-reach transmission.

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“…A 2.5 m-long water tank is loaded with piped water with a particle concentration < 0.1 g/m 3 or high-turbidity harbour water with a particle concentration of 33.46 g/m 3 . Water turbidity is made with suspensions of Mg(OH) 2 and Al(OH) 3 , by adding a commercial antacid preparation (Maalox) 37 . In piped underwater links, the underwater transmission distance is enhanced to 12.5 m (2.5 m × 5) with the adoption of plane mirrors on both sides of the water tank.…”

Section: Methodsmentioning

confidence: 99%

A 30 Gb/s PAM4 underwater wireless laser transmission system with optical beam reducer/expander

Tsai

et al. 2019

Sci Rep

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We have, so far as we know, proposed and demonstrated the first 30 Gb/s four-level pulse amplitude modulation (PAM4) underwater wireless laser transmission (UWLT) system with an optical beam reducer/expander over 12.5-m piped underwater channel/2.5-m high-turbidity harbour underwater channel. In piped underwater links, the performances of PAM4 UWLT systems get better with beam reduction given a small amount of light absorbed by the piped water. In highly turbid harbour underwater links, the performances of PAM4 UWLT systems get better with beam expansion given a large amount of scattered light received by the optical receiver. The effect of high-turbidity harbour water that induces scattering angle (beam divergence) on beam diameter is analyzed and optimised to enhance the transmission performances. This proposed PAM4 UWLT system, which uses an optical beam reducer/expander, provides a practical choice for high transmission capacity and considerably develops clarity and high-turbidity scenarios. It presents promising features for affording a high-transmission-rate underwater optical wireless transmission and opening an access to accelerate wide applications of UWLT systems.

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Evaluation of commercial Mg(OH)₂, Al(OH)₃ and TiO₂ as antimicrobial additives in thermoplastic elastomers

Cited by 13 publications

References 37 publications

A 400-Gb/s WDM-PAM4 OWC System Through the Free- Space Transmission With a Water-Air-Water Link

A 400-Gb/s WDM-PAM4 OWC System Through the Free- Space Transmission With a Water-Air-Water Link

A WDM PAM4 FSO–UWOC Integrated System With a Channel Capacity of 100 Gb/s

A 30 Gb/s PAM4 underwater wireless laser transmission system with optical beam reducer/expander

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