Search results for "Husk"

Investigation on Ash Slagging Characteristics During Combustion of Biomass Pellets and Effect of Additives

2017

This study reports a systematic investigation into ash slagging behavior during combustion of barley straw and barley husk pellets with or without additives in a residential pellet burner. The slagging tendencies of the pellets were evaluated based on the amount, chemistry, mineralogy, and morphology of inlet ash formed as slag and sintering degrees of residual ash. The barley straw and husk pellets showed high slagging tendencies with 39 and 54 wt % ingoing ash formed as slag. Analyses using X-ray fluorescence and scanning electron microcopy combined with energy-dispersive X-ray spectroscopy revealed high concentrations of K, Si, and Ca but a minor amount of P in barley straw slag. The sla…

Bilayer graded Al/B4C/rice husk ash composite: Wettability behavior, thermo-mechanical, and electrical properties

2018

In this study, wettability behavior of B4C substrate as well as B4C/crystalline rice husk ash and B4C/amorphous rice husk ash substrates with two aluminum alloys were studied. The electrical resistivity, thermal expansion coefficients, and thermal diffusivity of bilayer Al/B4C/rice husk ash composite fabricated by one-step pressureless infiltration were measured and the obtained data were systemically analyzed using the Taguchi method and analysis of variance. Boron carbide substrates after addition of amorphous or crystalline rice husk ash display good wettability with molten aluminum alloys. The results show that, electrical resistivity of Al/B4C/rice husk ash composites is mainly influe…

Characterization of Silica Extracted from Rice Husk by NIR Spectroscopy and its Application in Separation Science

2020

Rice is one of the major crops and staple food of more than half of the world’s population. Its production generates an abundant by-product, namely rice husk (RH). Rice husk is used as a fuel for power generation. The rice husk ash (RHA) generated during combustion becomes an environmental pollutant and its disposal is difficult. In this work, rice husk was used to produce silica by burning in a furnace at 650°C for 4 hrs. The produced silica was characterized by Near Infrared (NIR) spectroscopy and then used to prepare thin layer chromatography plates (TLC) for testing its efficiency in the separation of organic compounds. The NIR spectrum of rice husk ash showed the presence of combinatio…

Fracture strength of endodontically treated lateral incisors restored with new zirconia reinforced rice husk nanohybrid composite

2020

Background This study aimed to compare the fracture strength, fracture pattern and type of fracture of endodontically treated maxillary lateral incisors restored with new zirconia reinforced rice husk nanohybrid composite. Material and Methods Eighty mature permanent maxillary lateral incisors from patients age range of 30-60 years with single canal were selected and randomly divided into: Group 1 – RCT + nanofilled composite (Filtek), Group 2 – RCT + microhybrid composite (Zmack), Group 3 – RCT + new nanohybrid composite (Zr-Hybrid) and Group 4 - Intact teeth (control). Standardized mesio-palatal-distal cavity was prepared, and endodontic treatment was carried out using crown-down techniqu…

ENERGY REQUIREMENTS BOTH FOR OLIVE OIL AND OLIVE HUSK OIL EXTRACTION

1994

Mafia e antimafia nell'Italia repubblicana

2015

Una vulgata ormai cara alla pubblicistica, ma recisamente negata dalla storiografia, afferma che la mafia prestò il suo aiuto alle armate alleate al fine di assicurare il buon esito dell’‘operazione Husky’, nome in codice dello sbarco in Sicilia. Il primo maggio del 1947 si consuma il tragico eccidio di Portella della Ginestra. La reazione delle istituzioni si concentra, però, più sulla repressione del movimento contadino che della violenza mafiosa. Mentre ‘Cosa nostra’ prospera in assenza di significativi risultati operativi da parte degli inquirenti e per una sottovalutazione del problema da parte del governo e dell’opinione pubblica, a Palermo esplode nel 1962 la cosiddetta ‘prima guerra…

Recovery of bioactive compounds from walnut (Juglans regiaL.) green husk by supercritical carbon dioxide extraction

2021

In this work, the use of supercritical carbon dioxide, a nontoxic solvent, was proposed to extract bioactive compounds from Juglans regia L. green husk and was compared to other traditional techniques based on solvents such as ethanol, methanol and water. Supercritical CO2 was combined with ethanol as an organic modifier at a rate of 20% of the total flow to achieve greater extraction of polar compounds. The extracts were characterised in terms of extraction yields, antioxidant activity, total polyphenol content, phenolic acids, juglone, volatile organic compounds and antifungal activity. The results showed that the extracts obtained with supercritical CO2 were rich in polyphenols (10750 mg…

Sustainable Energy Supply Based on Sunflower Seed Husk for Oil mills

2019

The use of biomass, including sunflower husk, for in-situ energy generation has undergone a development in Ukraine last decades. Within this work, four combined heat and power technologies based on oil utilization, husk combustion, gasification, and methanization have been investigated. Their electricity and heat potential has been determined. Criteria for techno-economical assessment of CHP technologies have been suggested. Husk biogas and gasification technologies are not mature. CHP plants based on husk combustion are competitive. Steam turbine generators with a nominal electric capacity higher 1.5 MW may be profitable too.

Antioxidation, Anti-Inflammation, and Regulation of SRD5A Gene Expression of Oryza sativa cv. Bue Bang 3 CMU Husk and Bran Extracts as Androgenetic A…

2022

Acknowledgments: The authors are grateful to the NRCT for supporting research facilities (grant no. NRCT5-RRI63004-P05), Chiang Mai University for the Fundamental Fund 2022, and the partially support grant. We would like to thank Lanna Rice Research Center, Chiang Mai University, and Saleekam Trading Co., Ltd., Thailand, for providing the rice bran and husk samples.

Kinetics of solid-state fermentation of lupin with Rhizophus oligosporus based on nitrogen compounds balance

2021

Solid-state fermentation could be a potentially effective method for improving the nutritional value of legumes. The objective of this study was to explore this technology in Lupinus mutabilis, a species of lupin, using a strain of Rhizopus oligosporus mold for solid-state fermentation. Three L. mutabilis varieties (INIAP-450, INIAP-451, and Criollo) were evaluated, including the effect of the grain status (whole or ground) and integument or husk (presence or absence). Kinetic parameters of the fermentation process were studied to define the specific speed of nitrogen formation and the digestibility and nutritional quality of the resulting protein. After incubation at 28 °C for 96 h, the ti…