Structural Health Monitoring: Sensing Device Technology in Recent Industrial Applications

Najeeb, Muhammad Imran; Sultan, Mohamed Thariq Hameed

doi:10.1007/978-981-15-8840-2_1

Cited by 4 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The FTIR spectrum of dry turmeric powder shows spectral peaks with absorption bands in high-frequency bands with variations in intensity, with prominent peaks 3395 cm -1 related to stretching vibrations of -OH groups present in cellulose membranes and in water [46,47], a discrete 2922 cm -1 peak, related to stretching bending of the methylene group (-CH2) components of materials rich in hemicellulose carbohydrate components (Figure 1). Other bands ranging from 1633 cm -1 to 1023 cm -1 are present with poor intensity, being characteristics of the carbonyl group of protein amides, found in propeller-shaped structures deformed in the n-h stretch of the carbonyl amide, methyl esters, ketones with flexion of aliphatics groups CH2 and CH3 (--C -H), respectively [46,47].…”

Section: Analysis Of Chemical Groupings By Infrared Spectroscopy With...mentioning

confidence: 99%

Análise comparativa dos compostos bioativos do rizoma de açafrão in natura (Curcuma longa L.) e seu condimento comercial em pó

Valente de Freitas,

Carvalho,

Silveira

et al. 2023

Sci. Plena

View full text Add to dashboard Cite

O açafrão é um rizoma de alto consumo na forma de condimento em pó. No entanto, suas etapas de processamento podem levar a perdas de compostos bioativos. Nesse contexto, o objetivo principal desta pesquisa foi comparar o teor de compostos bioativos do açafrão in natura e seco (condimento em pó comercial) Curcuma Longa L. A metodologia foi baseada nas Normas Analíticas do Instituto Adolfo Lutz e em referências analíticas publicadas internacionalmente na área de ciência e tecnologia de alimentos. Os resultados mostraram que o açafrão in natura sofre perdas consideráveis durante o processamento para sua conversão em pó comercial. As perdas de 20% na quantidade de compostos fenólicos no pó comercial (de 485,34 ± 43,08 GAE g-1 no açafrão in natura para uma média de 375,72 ± 25,77 GAE g-1 no pó comercial), seguindo comportamento semelhante nos teores de carotenoides (média de 574,41 ± 42,81 g-1 para o açafrão in natura e média de 557 0,27 ± 41,34 g-1 para pó). Diferindo nos valores bioativos para teores de flavonoides com teores maiores para o pó comercial (média de 179,33 e 165,56), maiores em antocianinas 165,56 ± 0,82 e 130,31±0,13 g CE 100 g-1. Medidas de infravermelho mostraram que o processamento não altera os compostos químicos mais termorresistentes, ao contrário dos bioativos. Na análise morfológica, observa-se a presença de amiloplastos e feixes fibrosos, com grânulos de amido aderidos. Esses dados mostram o efeito do processamento desse rizoma e o potencial do açafrão como coadjuvante à saúde humana.

show abstract

Section: Analysis Of Chemical Groupings By Infrared Spectroscopy With...mentioning

confidence: 99%

Análise comparativa dos compostos bioativos do rizoma de açafrão in natura (Curcuma longa L.) e seu condimento comercial em pó

Valente de Freitas,

Carvalho,

Silveira

et al. 2023

Sci. Plena

View full text Add to dashboard Cite

show abstract

“…The application of this tool allows obtaining information related to functional chemical groups and their vibrational states according to interactions and changes in the structure and composition of materials [44]. The chemical groups presented in the broadest spectral bands between 3299 cm -1 to 1387 cm -1 are related to stretching vibrations of -OH groups present in water and cellulose membranes [45][46][47]. The presence of the band at 2930cm -1 and 1387 cm -1 may be related to CH2 bending in hemicellulose and CH vibrations, which commonly appear in carbohydrates and lignans present in large amounts in leafy materials, such as basil [45].…”

Section: Analysis Of Chemical Clusters By Fourier Transform Infrared ...mentioning

confidence: 99%

Analysis of Bioactive Compounds, Spectroscopic Profile, Thermogravimetric and Morphological Pattern of Basil Leaves (Ocimum basilicum) from the Amazon

De Carvalho,

Freitas,

Bezerra

et al. 2023

Preprint

View full text Add to dashboard Cite

The objective of this work is to evaluate and compare the levels of bioactive compounds in basil leaves (Ocimum basilicum), fresh and after thermal drying processing freeze-dried, using methodological procedures that follow internationally recommended and accepted standards. Fresh basil leaves had 9.50 -63.3 mg/100g (vitamin C), 1.8 -3.9 mg EAG/g (total polyphenols), 0.73-1.78 mg/g (flavonoids), 2287.8-1003,8 μg/100g (chlorophyll a), 2606-2287 μg/100g (chlorophyll b), 16.71-20.6 (total carotenoids).Regarding color, there was variation in the parameters L*, a* and b* of the dry sample, but maintained the tendency towards green e (a+) and yellow (b-). Infrared analysis (FTIR) demonstrated the presence of functional groups related to cellulose, hemicellulose and lignin, confirmed by micrography (SEM) with visualization of plant parenchyma residues and fiber bundles. Thermogravimetry (TG/DTG) shows stability in the range of 234 °C, showing more intense mass loss at 294.6 °C. Given the data, it is possible to infer that basil is little affected by freeze-drying, with few changes in bioactive compounds, chemical groups and with good thermal stability. Thus, the application of the freeze-drying technique is a viable alternative to the commercialization of basil leaves, prolonging their useful life and increasing the forms of food applications.

show abstract

“…Non-destructive testing (NDT) is among the various methods available to evaluate damage to materials or components. NDT involves the identification and characterization of damage on the surface as well as to the internal structure without the need to cut or alter the materials [ 7 ]. Hence the NDT technique is vital in evaluating the structural sustainability of a material without damaging its components.…”

Section: Introductionmentioning

confidence: 99%

Low-Velocity Impact Analysis of Pineapple Leaf Fiber (PALF) Hybrid Composites

et al. 2021

Self Cite

View full text Add to dashboard Cite

The low-velocity impact behaviour of pineapple leaf fiber, PALF reinforce epoxy composite (P), PALF hybrid (GPG), and four-layer woven glass fiber (GGGG) composite was investigated. As for post-impact analysis, the damage evaluation was assessed through photographic images and X-ray computed tomography, using CT scan techniques. The key findings from this study are that a positive hybrid effect of PALF as a reinforcement was seen where the GPG shows the delayed time taken for damage initiation and propagation through the whole sample compared to GGGG. This clearly shows that the addition of fibers does have comparable composite properties with a fully synthetic composite. Through the visual inspection captured by photographic image, the presence of woven fiber glass mat in GPG presents a different damage mode compared to P. Moreover, CT scan results show extended internal damage at the cross-section of all impacted composite.

show abstract

Structural Health Monitoring: Sensing Device Technology in Recent Industrial Applications

Cited by 4 publications

References 2 publications

Análise comparativa dos compostos bioativos do rizoma de açafrão in natura (Curcuma longa L.) e seu condimento comercial em pó

Análise comparativa dos compostos bioativos do rizoma de açafrão in natura (Curcuma longa L.) e seu condimento comercial em pó

Analysis of Bioactive Compounds, Spectroscopic Profile, Thermogravimetric and Morphological Pattern of Basil Leaves (Ocimum basilicum) from the Amazon

Low-Velocity Impact Analysis of Pineapple Leaf Fiber (PALF) Hybrid Composites

Contact Info

Product

Resources

About