Effects of He–Ne red and green laser irradiation on purple non-sulfur bacteria for biohydrogen production from food wastes

2021 ◽  
Author(s):  
E. M. Abdelsalam ◽  
M. Samer ◽  
M. A. Moselhy ◽  
A. H. Arisha ◽  
A. A. Abdelqader ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Green Laser ◽  
Biohydrogen Production ◽  
Food Wastes ◽  
Sulfur Bacteria

Photo-enhanced hydrolysis of bis(4-nitrophenyl) phosphate using Cu(ii) bipyridine-capped plasmonic nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 41618-41621 ◽  
Author(s):  
Scott A. Trammell ◽  
Rafaela Nita ◽  
Brett Martin ◽  
Martin H. Moore ◽  
Jake Fontana ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Fold Increase ◽  
Green Laser ◽  
Plasmonic Nanoparticles ◽  
Nitrophenyl Phosphate ◽  
Hydrolysis Of ◽  
Bnpp Hydrolysis

A 1000-fold increase in the rate of BNPP hydrolysis occurs under green laser irradiation of a copper(ii) complex on gold.

Green laser irradiation effects on buffalo semen

2011 ◽  
Vol 75 (6) ◽  
pp. 988-994 ◽  
Author(s):  
Z. Abdel-Salam ◽  
S.H.M. Dessouki ◽  
S.A.M. Abdel-Salam ◽  
M.A.M. Ibrahim ◽  
M.A. Harith
Keyword(s):  
Laser Irradiation ◽  
Green Laser ◽  
Irradiation Effects ◽  
Buffalo Semen

scholarly journals Laser Irradiation Effects at Different Wavelengths on Phenology and Yield Components of Pretreated Maize Seed

2020 ◽  
Vol 10 (3) ◽  
pp. 1189 ◽  
Author(s):  
Mohammed Hasan ◽  
Marlia Mohd Hanafiah ◽  
Ziad Aeyad Taha ◽  
Intsar H. H. AlHilfy ◽  
Mohd Nizam Mohd Said
Keyword(s):  
Laser Irradiation ◽  
Plant Height ◽  
Seed Yield ◽  
Yield Components ◽  
Laser Light ◽  
Second Harmonic ◽  
Block Design ◽  
Green Laser ◽  
Blue Laser ◽  
Growth And Yield

This study aims to compare the effects of different laser wavelengths, exposure times, and low-power-intensity laser irradiation on maize seeds. Seeds were exposed to He–Ne (632.8 nm) red laser, Nd:YAG second-harmonic-generation (532 nm) green laser, and diode (410 nm) blue laser. Four different exposure times (45, 65, 85, and 105 s) with different intensity (2 and 4 mW/cm2), for each laser were tested. Phenology and yield components (plant height, leaf area, number of rows per ear, seed yield, harvest index, yield efficiency, and grain weight) were determined. The experiment was conducted in a randomized complete block design with three replications. Plant height was found comparatively high in blue laser light—211 cm at 85 s. Blue and green laser lights showed significant increases in the number of rows per ear to 39.1 at 85 s and 45 at 65 s, respectively, compared to the control of 36 rows/ear. The order of seed yield was blue (7003.4 kg/ha) > green (6667.8 kg/ha) > red (6568.01 t/ha) based on different exposure times of 85 s, 85 s, and 105 s, respectively, compared to the control of 6.9 kg/ha. The findings indicate the possibility of using blue laser light to manipulate the growth and yield of maize.

scholarly journals Healing of cracks by green laser irradiation in a nanogold particles glass matrix composite

2019 ◽  
Vol 503-504 ◽  
pp. 115-119 ◽  
Author(s):  
Julien Moriceau ◽  
Patrick Houizot ◽  
Maciej Lorenc ◽  
Tanguy Rouxel
Keyword(s):  
Laser Irradiation ◽  
Matrix Composite ◽  
Glass Matrix ◽  
Green Laser ◽  
Glass Matrix Composite ◽  
Nanogold Particles

Biohydrogen Production From Food Waste by Anaerobic Fermentation

2005 ◽  
Author(s):  
Jun Cheng ◽  
Junhu Zhou ◽  
Binfei Xie ◽  
Lin Xie ◽  
Jianzhong Liu ◽  
...  
Keyword(s):  
Butyric Acid ◽  
Anaerobic Fermentation ◽  
Biohydrogen Production ◽  
Food Wastes ◽  
Digested Sludge ◽  
Lean Meat ◽  
Chromatography Analysis ◽  
Gas Chromatography Analysis ◽  
Acid Type ◽  
Fermentation Solution

The biohydrogen production from food wastes by anaerobic fermentation of digested sludge is studied. It is found by gas chromatography analysis that the volumetric ratios of H2 to CO2 in the biogases derived from rice, potato, lean meat and fat are respectively 0.77, 0.82, 0.93 and 0.82. The yield of methane is quite little, because the methane-producing activity is restrained and the hydrogen-producing activity is simultaneously kept when the digested sludge is preheated in the boiling water. Ethanol (0.43%) is the highest volatile fatty acid in the fermentation solution derived from lean meat, implying that it belongs to ethanol-type fermentation. The butyric acid concentrations are the highest (respectively 0.96%, 0.44% and 0.34%) in the fermentation solutions derived from rice, potato and fat, which implies that they all belong to butyric acid-type fermentation.

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