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Artigos de revistas sobre o tema "Spectroscopie non destructive"

Autor: Grafiati

Publicado: 23 de novembro de 2024

Última modificação: 31 de julho de 2025

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1

Bergmann, Uwe, Rafaella Georgiou, Pierre Gueriau, Jean-Pascal Rueff, and Loïc Bertrand. "Nouvelles spectroscopies Raman X du carbone pour les matériaux anciens." Reflets de la physique, no. 63 (October 2019): 22–25. http://dx.doi.org/10.1051/refdp/201963022.

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L’identification des composés à base de carbone, bien que difficile, est une source d’information essentielle dans de nombreuses études archéologiques et paléontologiques. La diffusion Raman de rayons X est une méthode de spectroscopie sur synchrotron qui permet d’identifier des signatures organiques, de retracer l’origine chimique des systèmes étudiés et de comprendre l’altération des composés organiques dans le temps. Cette technique, conduite de manière non destructive, dans l’air, avec une sensibilité en profondeur afin de fournir des informations non compromises par la contamination super

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VUILLEMIN, Jerôme. "Le cryptoméria de La Réunion (Cryptomeria japonica) : durabilité naturelle face aux champignons basidiomycètes et aux termites, et apports de la spectroscopie proche infrarouge dans la prédiction de ses caractéristiques." BOIS & FORETS DES TROPIQUES 358 (December 25, 2023): 73–74. http://dx.doi.org/10.19182/bft2023.358.a37418.

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Le cryptoméria (Cryptomeria japonica) est la seule essence de bois locale exploitable dans la construction à La Réunion. Cependant, sa durabilité variable face aux champignons basidiomycètes et aux termites constitue un frein au déploiement de son utilisation locale, où les conditions climatiques sont particulièrement favorables à la dégradation des matériaux biosourcés. Cette thèse a consisté à déterminer avec précision la durabilité naturelle de cette essence face à deux espèces de champignons ubiquistes basidiomycètes (Rhodonia placenta et Coniophora puteana) et deux espèces de termit

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3

Priyanshi, Pandey, Vengurlekar Sudha, and Kumar Jain Sachin. "Raman Spectroscopy: A Review." Pharmaceutical and Chemical Journal 10, no. 2 (2023): 43–48. https://doi.org/10.5281/zenodo.13983760.

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This article reviews recent advances in Raman spectroscopy its types and its applications, from the perspective of pharmaceutical analysis. The emerging concepts enable rapid non-invasive analysis of pharmaceutical formulations and could lead to many important applications in pharmaceutical settings, including quantitative bulk analysis of intact pharmaceutical tablets in quality and process control. Raman spectroscopy is particularly useful as a screening tool for quick evaluation of chemicals and pharmaceuticals since it is simple, non- destructive and information-rich.

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León, L., and A. Gracia. "Non-destructive assessment of olive fruit ripening by portable near infrared spectroscopy." Grasas y Aceites 62, no. 3 (2011): 268–74. http://dx.doi.org/10.3989/gya.089610.

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Lu, Yuzhen, and Renfu Lu. "Non-Destructive Defect Detection of Apples by Spectroscopic and Imaging Technologies: A Review." Transactions of the ASABE 60, no. 5 (2017): 1765–90. http://dx.doi.org/10.13031/trans.12431.

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Abstract. Apples are susceptible to a wide range of defects that can occur in the orchard and during the post-harvest period. Detection of these defects by non-destructive sensing techniques is of great importance for the apple industry and has been an intensive research topic over the past two decades. This review presents an overview of common defects in apples, encompassing physiological disorders, mechanical damage, pathological disorders, and contamination. Presented and discussed in this review is research progress on the detection of defects in apples using various non-destructive spect

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6

Mac, Hoa Xuan, Thanh Tung Pham, Nga Thi Thanh Ha, Lien Le Phuong Nguyen, László Baranyai, and László Friedrich. "Current Techniques for Fruit Juice and Wine Adulterant Detection and Authentication." Beverages 9, no. 4 (2023): 84. http://dx.doi.org/10.3390/beverages9040084.

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Fruit juice and wine are important beverages that are consumed all over the world. Due to their constantly increasing demand and high value, fruit juice and wine are one of the most frequent targets of adulteration. Since adulterated foods are proven to have harmful effects on health, several approaches have been utilized for the detection of fruit juice and wine adulteration. Based on the requirement for sample destruction, analytical techniques to assess food authenticity can be classified into 2 main categories, i.e., destructive and non-destructive techniques. This paper provides an overvi

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7

Gatta, Giacomo Diego, Ilaria Adamo, Andrea Zullino, et al. "A Multi-Methodological Investigation of Natural and Synthetic Red Beryl Gemstones." Minerals 12, no. 4 (2022): 439. http://dx.doi.org/10.3390/min12040439.

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In this study, we report the experimental findings of a multi-methodological and comparative investigation of a natural (from the Wah Wah Mountains of Beaver County, Utah) and three synthetic (hydrothermally grown) gem-quality red beryls by means of: gemmological standard testing, laser ablation inductively coupled mass spectroscopy, infrared and Raman spectroscopy, ultraviolet–visible–near infrared absorption spectroscopy, and single-crystal X-ray diffraction. Gemmological, crystallo-chemical, and spectroscopic features of the natural and synthetic stones enabled us to unveil the causes of th

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Yadav, Vijay Kumar, Kriti Nigam, and Ankit Srivastava. "Forensic investigation of arson residue by infrared and Raman spectroscopy: From conventional to non-destructive techniques." Medicine, Science and the Law 60, no. 3 (2020): 206–15. http://dx.doi.org/10.1177/0025802420914807.

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Arson can result in highly challenging and complicated crime scenes. Much physical evidence undergoes chemical degradation because of the destructive nature of fire, while accelerants either completely burn or evaporate, and may be present in traces within any of the decomposed materials. To identify the original material and the accelerant involved, it is necessary to use advanced analytical techniques. Gas chromatography, with different detectors, is one of the most frequently used instruments in fire debris and accelerant analysis. Among other instruments, capillary electrophoresis and lase

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9

Bicchieri, Marina, Michela Monti, Giovanna Piantanida, Flavia Pinzari, and Armida Sodo. "Non-destructive spectroscopic characterization of parchment documents." Vibrational Spectroscopy 55, no. 2 (2011): 267–72. http://dx.doi.org/10.1016/j.vibspec.2010.12.006.

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Carcione, Rocco, Leonardo Lanzetta, Beatrice D’Orsi, et al. "Gamma Irradiation for Agrifood: Non-Destructive Approaches to Study the Secondary Effects Produced in Italian Wheat Matrices." Polysaccharides 6, no. 2 (2025): 39. https://doi.org/10.3390/polysaccharides6020039.

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This work investigates the effects of gamma irradiation (0.1–10 kGy) on four Italian wheat matrices, such as durum, conventional soft, integrated soft, and biological soft wheat, by coupling Raman, FTIR-ATR and EPR spectroscopies to provide complementary insights into the structural, conformational, and radical-based transformations occurring in starch, the primary polysaccharide in wheat. As a general trend, gamma irradiation up to 10 kGy does not induce drastic degradation or depolymerization of wheat components. However, deeper investigations reveal that wheat composition is crucial in modu

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11

El, Khaled Dalia, Nuria Novas, José A. Gázquez, Salvador Rosa María García, and Francisco Manzano-Agugliaro. "Fruit and vegetable quality assessment via dielectric sensing." Sensors 15, no. 7 (2015): 15363–97. https://doi.org/10.3390/s150715363.

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The demand for improved food quality has been accompanied by a technological boost. This fact enhances the possibility of improving the quality of horticultural products, leading towards healthier consumption of fruits and vegetables. A better electrical characterization of the dielectric properties of fruits and vegetables is required for this purpose. Moreover, a focused study of dielectric spectroscopy and advanced dielectric sensing is a highly interesting topic. This review explains the dielectric property basics and classifies the dielectric spectroscopy measurement techniques. It compre

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Pandiselvam, Ravi, Rathnakumar Kaavya, Sergio I. Martinez Monteagudo, et al. "Contemporary Developments and Emerging Trends in the Application of Spectroscopy Techniques: A Particular Reference to Coconut (Cocos nucifera L.)." Molecules 27, no. 10 (2022): 3250. http://dx.doi.org/10.3390/molecules27103250.

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The number of food frauds in coconut-based products is increasing due to higher consumer demands for these products. Rising health consciousness, public awareness and increased concerns about food safety and quality have made authorities and various other certifying agencies focus more on the authentication of coconut products. As the conventional techniques for determining the quality attributes of coconut are destructive and time-consuming, non-destructive testing methods which are accurate, rapid, and easy to perform with no detrimental sampling methods are currently gaining importance. Spe

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Dold, Jasmin, Caroline Kehr, Clarissa Hollmann, and Horst-Christian Langowski. "Non-Destructive Measuring Systems for the Evaluation of High Oxygen Stored Poultry: Development of Headspace Gas Composition, Sensory and Microbiological Spoilage." Foods 11, no. 4 (2022): 592. http://dx.doi.org/10.3390/foods11040592.

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As poultry is known to be a perishable food, the use-by date is set in such a way that food safety is guaranteed even with a higher initial bacterial count. This means, however, that some products are wasted, even if they are still safe to eat. Therefore, non-destructive measurement devices might be a good opportunity for individual shelf-life prediction, e.g., in retail. The aim of this study was therefore to use non-destructive measurement devices based on fluorescence quenching (oxygen detection) and mid-infrared laser spectroscopy (carbon dioxide detection) for the monitoring of high-oxyge

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14

Manish, Banerjee. "Addressing analytical challenges in estimation of precious metals (Ag, Au, Pd, Pt) across a wide range of samples." Journal of Indian Chemical Society Vol. 97, May 2020 (2020): 693–719. https://doi.org/10.5281/zenodo.5654811.

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Geo-Scientist, Chemical Division, Geological Survey of India, Northern Region, Aliganj, Lucknow-226 024, Uttar Pradesh, India <em>E-mail</em>: manish.banerjee@gsi.gov.in <em>Manuscript received online 30 December 2019, revised and accepted 26 March 2020</em> With the rapid development of technology, new and improved materials have become indispensable in our daily life. Consequently, certain metals have gained immense importance compared to others as more and more mature materials are evolving. One such group is the precious metals comprising mainly silver, gold, palladium and platinum. Their

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15

Tang, Ting, Qing Luo, Liu Yang, Changlun Gao, Caijin Ling, and Weibin Wu. "Research Review on Quality Detection of Fresh Tea Leaves Based on Spectral Technology." Foods 13, no. 1 (2023): 25. http://dx.doi.org/10.3390/foods13010025.

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As the raw material for tea making, the quality of tea leaves directly affects the quality of finished tea. The quality of fresh tea leaves is mainly assessed by manual judgment or physical and chemical testing of the content of internal components. Physical and chemical methods are more mature, and the test results are more accurate and objective, but traditional chemical methods for measuring the biochemical indexes of tea leaves are time-consuming, labor-costly, complicated, and destructive. With the rapid development of imaging and spectroscopic technology, spectroscopic technology as an e

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16

Blanco, Marcelo, Manel Alcalá, Josep M. González, and Ester Torras. "Non-Destructive Dissolution Testing by NIR Spectroscopy." NIR news 18, no. 6 (2007): 9–11. http://dx.doi.org/10.1255/nirn.1039.

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Williams, L. A., S. E. Faidi, S. B. Lyon, R. A. Cottis, and K. R. Baldwin. "Non-destructive testing using electromagnetic impedance spectroscopy." Corrosion Science 35, no. 1-4 (1993): 833–39. http://dx.doi.org/10.1016/0010-938x(93)90222-3.

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18

Mengstu, Mahtem, Alper Taner, and Hüseyin Duran. "Spectroscopy and machine learning in food processing survey." BIO Web of Conferences 85 (2024): 01022. http://dx.doi.org/10.1051/bioconf/20248501022.

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For food safety, quality control from the foodstuff production to the tasting of foods is needed and should be simple and non-destructive. Recent and notable non-destructive measurements of food and agricultural products are based on optical and spectroscopic techniques. Spectroscopy, meets the requirements of industrial applications for continuous quality control and process monitoring. Hence, this article covers a survey of recent research works, highlighting the application of spectroscopy and machine learning in food processing from bibliographic database. The survey was based on relevant

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19

Liu, Mihaela, Zhigao Wang, and Xinyou Liu. "Spectroscopic Techniques for Identifying Pigments in Polychrome Cultural Relics." Coatings 15, no. 1 (2024): 20. https://doi.org/10.3390/coatings15010020.

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This article explores recent advancements in non-destructive spectroscopic techniques for identifying pigments in polychrome cultural relics, emphasizing their significance for sustainability in cultural heritage preservation. Techniques such as infrared spectroscopy, Raman spectroscopy, and X-ray fluorescence spectroscopy facilitate the accurate identification of pigment compositions while ensuring the integrity of the artifacts is maintained. Our findings indicate that integrating multiple spectroscopic methods enhances the accuracy of pigment identification and deepens our understanding of

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Nikopoulou, Maria, Stefanos Karampelas, Ugo Hennebois, et al. "Microscopic, Spectroscopic and Chemical Analysis of Emeralds from Habachtal, Austria." Minerals 15, no. 1 (2024): 22. https://doi.org/10.3390/min15010022.

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Studies on emeralds from Habachtal (Austria) are scarce and non-exhaustive. However, they represent a significant interest to the community, as they have been assumed to be present in historical pieces of jewelry. Along with Egypt, Habachtal is suggested to be one of the main sources of gem-quality emeralds of archaeological significance. In this regard and due to their similar macroscopic look and geological context, it has always been challenging to distinguish Austrian and Egyptian emeralds set in historic jewelry. In this paper, a first comprehensive study of several Habchtal emeralds is p

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21

Mitrani Viggiano, Alejandro, José Luis Ruvalcaba Sil, Mayra D. Manrique Ortega, and Victoria Corregidor Berdasco. "Non-Destructive Micro-Chemical and Micro-Luminescence Characterization of Jadeite." Microscopy and Microanalysis 22, no. 6 (2016): 1304–15. http://dx.doi.org/10.1017/s1431927616012010.

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AbstractJadeite was greatly appreciated by pre-Hispanic cultures in Mesoamerica. Despite its importance, knowledge of its mining sources was lost after the Spanish conquest. In the 1950s the only confirmed jadeite deposits in Mesoamerica were found in the Motagua River Fault (MRF), Guatemala. The aim of this study is to present a methodology that is appropriate for the study of archeological jadeite objects using non-destructive spectroscopic and micro-ion beam analysis techniques. This methodology has been applied to perform mineral, elemental, and luminescence characterization of five jadeit

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22

Sharma, Sweety, Jaskirandeep K. Jossan, and Rajinder Singh. "ATR FT-IR Spectroscopy: A Novel and Non-Destructive Approach for the Detection of Blood on a Single Fiber." Arab Journal of Forensic Sciences & Forensic Medicine 2, no. 1 (2020): 27–41. http://dx.doi.org/10.26735/ayfk5009.

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Murad, Enver. "Instrumental characterization of geological materials and their synthetic analogs." Pure and Applied Chemistry 87, no. 3 (2015): 301–6. http://dx.doi.org/10.1515/pac-2014-0714.

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AbstractThe mineralogy of geological samples is generally determined by optical microscopy or X-ray diffraction. 57Fe Mössbauer and Raman spectroscopies are effective alternative non-destructive nuclear and vibrational instrumental techniques that can – in conjunction with the former procedures, and all the more when these fail – serve for mineral characterization. In favorable cases these spectroscopic techniques enable, beyond a mere general characterization, the conclusive identification of selected minerals.

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24

S., A. Waly, M. Shehata M., and Massoud A. "Destructive and Nondestructive Analysis of Some Modern Coins using ICP-AES and PIXE Techniques." Chemistry Research Journal 3, no. 1 (2018): 1–8. https://doi.org/10.5281/zenodo.13923939.

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In this work, The ICP-AES (Inductively Coupled Plasma Atomic Emission Spectroscopy) and PIXE (Proton Induced X-ray Emission) techniques were used to determine the elemental compositions of some modern coins. The coins of interest were (250, 500LL) Lebanese Lira coins, (50, 100PT) Egyptian coins and (2€) Euro coin. The study showed that the most forming composition in these coins are ten elements namely,  Cr,  Mn,  Fe, Co,  Ni,  Cu,  Zn,  Ti,  Al and  V. For Lebanese Liracoins (250 and 500LL), both (Cu and Fe) are the main structural elements wh

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Zhang, Ying, Dongdong Qi, Jianzhuang Jiang, and Xuan Sun. "A novel photochromic and electrochromic europium tetraazaporphyrinato and phthalocyaninato heteroleptic double-decker for information storage." Journal of Porphyrins and Phthalocyanines 13, no. 12 (2009): 1197–205. http://dx.doi.org/10.1142/s1088424609001558.

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A novel tetraazaporphyrinato and phthalocyaninato mixed heteroleptic double-decker sandwich rare-earth compound with photochromic and electrochromic features has been facilely synthesized by one-pot reaction using Eu(acac)3 ·n H2O , metal-free phthalocyanine H2Pc′ ( Pc′ = 2,3,9,10,16,17,23,24-octakis(decyloxy)phthalocyanine), and the photochromic precursor 1,2-dicyano-l,2-bis(2,3,5-trimethyl-3-thienyl)ethane as starting materials. The compound was well characterized by elemental analysis and various spectroscopic methods including UV-vis, IR, 1H NMR, and mass spectroscopies. The electrochemica

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26

Kashani Zadeh, Hossein, Mike Hardy, Mitchell Sueker, et al. "Rapid Assessment of Fish Freshness for Multiple Supply-Chain Nodes Using Multi-Mode Spectroscopy and Fusion-Based Artificial Intelligence." Sensors 23, no. 11 (2023): 5149. http://dx.doi.org/10.3390/s23115149.

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This study is directed towards developing a fast, non-destructive, and easy-to-use handheld multimode spectroscopic system for fish quality assessment. We apply data fusion of visible near infra-red (VIS-NIR) and short wave infra-red (SWIR) reflectance and fluorescence (FL) spectroscopy data features to classify fish from fresh to spoiled condition. Farmed Atlantic and wild coho and chinook salmon and sablefish fillets were measured. Three hundred measurement points on each of four fillets were taken every two days over 14 days for a total of 8400 measurements for each spectral mode. Multiple

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Tao, Yu Heng, Anthony J. Fitzgerald, and Vincent P. Wallace. "Non-Contact, Non-Destructive Testing in Various Industrial Sectors with Terahertz Technology." Sensors 20, no. 3 (2020): 712. http://dx.doi.org/10.3390/s20030712.

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In this article, we survey various non-contact, non-destructive testing methods by way of terahertz (THz) spectroscopy and imaging designed for use in various industrial sectors. A brief overview of the working principles of THz spectroscopy and imaging is provided, followed by a survey of selected applications from three industries—the building and construction industry, the energy and power industry, and the manufacturing industry. Material characterization, thickness measurement, and defect/corrosion assessment are demonstrated through the examples presented. The article concludes with a di

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Papaspyridakou, Panagiota, Panagiota Giannoutsou, and Malvina G. Orkoula. "Non-Destructive and Non-Invasive Measurement of Ethanol and Toxic Alcohol Strengths in Beverages and Spirits Using Portable Raman Spectroscopy." Biosensors 13, no. 1 (2023): 135. http://dx.doi.org/10.3390/bios13010135.

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The measurement of ethanol and toxic alcohol (methanol and isopropanol) strengths in beverages and spirits is crucial for health reasons but also for the identification of adulterated products. Many methodologies have been reported in the literature, based mainly on chromatographic and on spectroscopic techniques. Chromatographic techniques are laborious and time-consuming, while spectroscopic techniques are rapid and need no special sample pretreatment. All techniques were only applied to off-line or at-line manner. In the present work, Raman spectroscopy was used for fast and non-destructive

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Okere, Emmanuel Ekene, Ebrahiema Arendse, Alemayehu Ambaw Tsige, Willem Jacobus Perold, and Umezuruike Linus Opara. "Pomegranate Quality Evaluation Using Non-Destructive Approaches: A Review." Agriculture 12, no. 12 (2022): 2034. http://dx.doi.org/10.3390/agriculture12122034.

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Pomegranate (Punica granatum L.) is one of the most healthful and popular fruits in the world. The increasing demand for pomegranate has resulted in it being processed into different food products and food supplements. Researchers over the years have shown interest in exploring non-destructive techniques as alternative approaches for quality assessment of the harvest at the on-farm point to the retail level. The approaches of non-destructive techniques are more efficient, inexpensive, faster and yield more accurate results. This paper provides a comprehensive review of recent applications of n

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Chen, Zhi Feng, Yuan Quan Hong, Chang Jiang Wan, and Lian Ying Zhao. "Fast Non-Destructive Detection of Wool Content in Blended Fabrics Based on Near-Infrared Spectroscopy Technology." Key Engineering Materials 671 (November 2015): 356–62. http://dx.doi.org/10.4028/www.scientific.net/kem.671.356.

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A fast non-destructive method of detection of wool content in blended fabrics was studied based on Near Infrared spectroscopy technology in order to avoid the time-consuming, tedious work and the destruction of samples in the traditional inspection. 621 wool/nylon, wool/polyester and wool/nylon/polyester blended fabrics were taken as research objects. To get the wool content, we established the wool near-infrared quantitative model by partial least squares (PLS) method after analyzing the color and composition of the samples. For verifying the validity and practicability of the model, 100 samp

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Smeys, P., U. Magnusson, and J. P. Colinge. "Non-destructive characterisation of SOI wafers using spectroscopic reflectrometry." Solid-State Electronics 36, no. 8 (1993): 1213–16. http://dx.doi.org/10.1016/0038-1101(93)90203-3.

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Tretyakova, L. I., N. B. Reshetnyak, and Yu V. Tretyakova. "A combined spectroscopic method for non-destructive gem identification." Journal of Gemmology 25, no. 8 (1997): 532–39. http://dx.doi.org/10.15506/jog.1997.25.8.532.

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Bicchieri, Marina, Armida Sodo, Giovanna Piantanida, and Carlo Coluzza. "Analysis of degraded papers by non-destructive spectroscopic techniques." Journal of Raman Spectroscopy 37, no. 10 (2006): 1186–92. http://dx.doi.org/10.1002/jrs.1603.

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Schram, T., A. Franquet, H. Terryn, and J. Vereecken. "Spectroscopic Ellipsometry: a Non-destructive Technique for Surface Analysis." Advanced Engineering Materials 1, no. 1 (1999): 63–66. http://dx.doi.org/10.1002/(sici)1527-2648(199909)1:1<63::aid-adem63>3.0.co;2-1.

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Mohd, Fadzli Abd Shaib, Abdul Rahim Ruzairi, Z. M. Muji S., and Abd Aziz Ahmad Azian. "Investigating Maturity State and Internal Properties of Fruits Using Non-Destructive Techniques-A Review." TELKOMNIKA Telecommunication, Computing, Electronics and Control 15, no. 4 (2017): 1574–84. https://doi.org/10.12928/TELKOMNIKA.v15i4.7236.

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The evaluation of internal condition of the fruit via destructive techniques mostly damaged the internal and external fruit structure. However, there are several non-destructive techniques available could be applied in the agricultural industry, specifically for observing internal fruit conditions. Different kinds of internal conditions of fruits are evaluated in terms of their quality and ripeness levels. These nondestructive techniques include fruit evaluation via ultrasonic measurement techniques, light spectroscopy, imaging via Magnetic Resonance Imaging (MRI) and X-Ray, computer vision, e

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Marečková, Martina, Veronika Danková, Lubor Zelený, and Pavol Suran. "Non-destructive near infrared spectroscopy externally validated using large number sets for creation of robust calibration models enabling prediction of apple firmness." Journal of Near Infrared Spectroscopy 30, no. 2 (2022): 97–104. http://dx.doi.org/10.1177/09670335211054299.

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Non-invasive flesh firmness prediction using near infrared spectroscopy has been perfected and validated on three apple varieties. Three novel calibration models were developed following three year's of repeated large-scale sampling of stored commercial apple varieties ‘Gala’, ‘Red Jonaprince’ and ‘Jonagored’. The spectroscopic results were compared directly with those obtained using the invasive method. Increased accuracy of calibration models was achieved with the newly established data collection model. The results exhibited coefficient of determination for calibration, R2, and ratio of pre

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Franceschelli, Leonardo, Annachiara Berardinelli, Sihem Dabbou, Luigi Ragni, and Marco Tartagni. "Sensing Technology for Fish Freshness and Safety: A Review." Sensors 21, no. 4 (2021): 1373. http://dx.doi.org/10.3390/s21041373.

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Standard analytical methods for fish freshness assessment are based on the measurement of chemical and physical attributes related to fish appearance, color, meat elasticity or texture, odor, and taste. These methods have plenty of disadvantages, such as being destructive, expensive, and time consuming. All these techniques require highly skilled operators. In the last decade, rapid advances in the development of novel techniques for evaluating food quality attributes have led to the development of non-invasive and non-destructive instrumental techniques, such as biosensors, e-sensors, and spe

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Luo, Guofang, Qin Xu, Ping Song, Hongtao Chen, Dong Wang, and Xi Chen. "Defect detection of composite materials for cable insulation layer based on terahertz." Journal of Physics: Conference Series 2662, no. 1 (2023): 012023. http://dx.doi.org/10.1088/1742-6596/2662/1/012023.

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Abstract Hidden defects can seriously affect the insulation performance of cables and pose safety hazards. In this article, a novel Non-Destructive evaluation technique for insulation materials based on terahertz time-domain spectroscopy technology is proposed. Firstly, terahertz time-domain spectroscopy technology was used to perform reflective scanning on insulation materials. Various imaging algorithms were used to image terahertz defects. The results showed that the maximum imaging and peak to peak time imaging were effective. At the same time, bilateral filtering was used to process terah

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Petersen, Marlen, Zhilong Yu, and Xiaonan Lu. "Application of Raman Spectroscopic Methods in Food Safety: A Review." Biosensors 11, no. 6 (2021): 187. http://dx.doi.org/10.3390/bios11060187.

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Food detection technologies play a vital role in ensuring food safety in the supply chains. Conventional food detection methods for biological, chemical, and physical contaminants are labor-intensive, expensive, time-consuming, and often alter the food samples. These limitations drive the need of the food industry for developing more practical food detection tools that can detect contaminants of all three classes. Raman spectroscopy can offer widespread food safety assessment in a non-destructive, ease-to-operate, sensitive, and rapid manner. Recent advances of Raman spectroscopic methods furt

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Cappelli, Alessio, Sirio Cividino, Veronica Redaelli, et al. "Applying Spectroscopies, Imaging Analyses, and Other Non-Destructive Techniques to Olives and Extra Virgin Olive Oil: A Systematic Review of Current Knowledge and Future Applications." Agriculture 14, no. 7 (2024): 1160. http://dx.doi.org/10.3390/agriculture14071160.

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Given its huge economic, nutritional, and social value, extra virgin olive oil (EVOO) is an essential food. This flagship product of the countries bordering the Mediterranean basin is one of the most frauded products worldwide. Although traditional chemical analyses have demonstrated to be reliable tools for olive drupes and EVOO quality assessment, they present several drawbacks; the urgent need for fast and non-destructive techniques thus motivated this review. Given the lack of comprehensive reviews in the literature, our first aim was to summarize the current knowledge regarding applying s

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Sinhal, Mudit, Ziv Meir, and Stefan Willitsch. "Non-destructive State Detection and Spectroscopy of Single Molecules." CHIMIA International Journal for Chemistry 75, no. 4 (2021): 291–95. http://dx.doi.org/10.2533/chimia.2021.291.

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We review our recent experimental results on the non-destructive quantum-state detection and spectroscopy of single trapped molecules. At the heart of our scheme, a single atomic ion is used to probe the state of a single molecular ion without destroying the molecule or even perturbing its quantum state. This method opens up perspectives for new research directions in precision spectroscopy, for the development of new frequency standards, for tests of fundamental physical concepts and for the precise study of chemical reactions and molecular collisions with full control over the molecular quan

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Cho, R. K., G. Lin, and Y. K. Kwon. "Nondestructive Analysis for Nitrogens of Soils by near Infrared Reflectance Spectroscopy." Journal of Near Infrared Spectroscopy 6, A (1998): A87—A91. http://dx.doi.org/10.1255/jnirs.172.

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Traditional wet analytical method such as the gravimetric, Kjeldahl or Walkley-Black method are still the most widely used for determining the organic matter (OM), moisture and notal nitrogen (T–N) content of soils. However, these are time-consuming, high in cost and labour intensive as well producing harmfull pollutants making the method undesirable for field measurement. Over three years we have been working on the development of a non-destructive on-site analyser for measuring OM, moisture and T–N. In this research we investigated the possibility of using near infrared (NIR) spectroscopy fo

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Zeng, Wandan, Qi Wang, Chengwei Wu, et al. "Recognition of Foodborne Pathogens Terahertz Spectrum Based on Convolutional Neural Network." Journal of Physics: Conference Series 2226, no. 1 (2022): 012012. http://dx.doi.org/10.1088/1742-6596/2226/1/012012.

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Abstract Foodborne pathogenic bacteria detection is an important work, the traditional laboratory identification method, will cause irreversible damage to the sample, and the detection cycle is long. Compared with traditional biological detection methods, the greatest advantage of terahertz spectroscopy detection is that it can do non-destructive detection of samples, and terahertz spectroscopy technology, combined with computer systems, can reduce analysis time, improve recognition accuracy, and maximize the extraction and mining of effective information in the spectrum. This paper establishe

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Platova, R. A., Yu T. Platov, V. A. Rassulov, and T. Stoikova. "Identification of Porcelain Products by Non-Destructive Optical Spectroscopy." Glass and Ceramics 77, no. 11-12 (2021): 448–51. http://dx.doi.org/10.1007/s10717-021-00330-y.

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Mastroianni, I., Marc Poorteman, G. Moortgat, and F. Cambier. "Impedance Spectroscopy for Non Destructive Characterisation of Ceramic Compacts." Key Engineering Materials 264-268 (May 2004): 113–16. http://dx.doi.org/10.4028/www.scientific.net/kem.264-268.113.

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Siv Sachin, S. D., Vivek Vijayan, and Rajeev N. Kini. "Non-destructive evaluation of coatings using terahertz reflection spectroscopy." Journal of Optics 24, no. 4 (2022): 044014. http://dx.doi.org/10.1088/2040-8986/ac54ea.

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Abstract Terahertz time-domain spectroscopy (THz-TDS) provides a non-contact, non-destructive method for evaluating different materials and their properties. This short review discusses the commonly used numerical models for the non-destructive estimation of thickness, refractive index, surface and interface roughness of paints, thermal barrier coatings, and polymer coatings using THz-TDS in the reflection geometry. To demonstrate the applicability of these models, we used paint layers on metallic substrates and extracted different paraments by fitting the experimental THz-TDS data. We conclud

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OURAK, M., B. NONGAILLARD, J. M. ROUVAEN, and N. IMOULOUDENE. "NON DESTRUCTIVE EVALUATION OF COMPOSITE MATERIALS USING ULTRASONIC SPECTROSCOPY." Le Journal de Physique Colloques 51, no. C2 (1990): C2–1261—C2–1264. http://dx.doi.org/10.1051/jphyscol:19902296.

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Cardinali, Martina Alunni, Irene Bargagli, Valeria Di Tullio, et al. "Multimodal spectroscopic assessment of mechanical and chemical properties of ABS objects in cultural heritage preservation." EPJ Web of Conferences 309 (2024): 14006. http://dx.doi.org/10.1051/epjconf/202430914006.

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The 1960s saw the emergence of plastic as an indispensable component in various fields, including art and design. Acrylonitrile-butadiene-styrene (ABS) is widely used by artists and designers for a range of applications including sculptures and decorative pieces. Consequently, the necessity to conserve ABS from deterioration is a crucial issue in the field of cultural heritage preservation. Many studies have highlighted the criticality of the stability of the polybutadiene component when exposed to light. We propose a new multimodal spectroscopic approach to assess the conservation status of p

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Bodnar, O. B., I. M. Aristova, A. A. Mazilkin, A. N. Chaika, and L. N. Pronina. "Non-Destructive Method of Diffusion Parameters Determination in Solids." Defect and Diffusion Forum 237-240 (April 2005): 438–43. http://dx.doi.org/10.4028/www.scientific.net/ddf.237-240.438.

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Diffusion of nitrogen implanted in tungsten and molybdenum single crystals has been investigated at temperature about 0.3 Tm (Tm is the melting point). Existence of several dopant atom fluxes is found in subsurface region of the ion implanted material. The diffusion coefficients of the nitrogen connected with the radiation damages and that with the bulk diffusion mechanism are determined. Change of the nitrogen surface concentration has been measured by Auger electron spectroscopy. Initial distribution of the nitrogen and diffusion profiles for various annealing time have been determined by se

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Vega-Castellote, Miguel, Dolores Pérez-Marín, Jens Petter Wold, Nils Kristian Afseth, and María-Teresa Sánchez. "Exploring Near-Infrared and Raman Spectroscopies for the Non-Destructive In-Situ Estimation of Sweetness in Half Watermelons." Foods 13, no. 23 (2024): 3971. https://doi.org/10.3390/foods13233971.

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Watermelons are in high demand for their juicy texture and sweetness, which is linked to their soluble solids content (SSC). Traditionally, watermelons have been sold as whole fruits. However, the decline in the mean size of households and the very large size of the fruits, together with high prices, mainly at the beginning of the season, mean that supermarkets now sell them as half fruits. For consumers, it is important to know in advance that the fruits that they are purchasing are of a high quality, based not only on external flesh colour but also on sweetness. Near-infrared spectroscopy (N

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