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Artykuły w czasopismach na temat „Testis Thermography”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 31 stycznia 2023

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1

Fernandez, Nicolas, Armando Lorenzo, Anne-Sophie Blais, and Clyde Matava. "Thermographic Patterns for Real-time Intraoperative Monitoring of Testicular Reperfusion Following Surgical Testicular Detorsion." Revista Urología Colombiana / Colombian Urology Journal 27, no. 03 (May 29, 2018): 294–98. http://dx.doi.org/10.1055/s-0038-1656559.

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AbstractA 5-year-old patient presents to the emergency department with testicular torsion. Intraoperative sequential infrared thermographic images were registered in real-time using a FLIR One (FLIR Systems, Inc., Wilsonville, OR, US) infrared camera. The temperatures of the scrotum and the testis prior to scrotal exploration were 43.6°C on the affected side, and 41.7°C on the contralateral side. The core temperature of the patient was 36.8°C. Immediately after the tunica vaginalis had been opened and the testis had been brought out through the incision, the temperature of the testicle was 31.

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Paranzini, C. S., G. S. Cardoso, A. K. Souza, F. M. Perencin, C. A. A. Melanda, A. P. F. R. L. Bracarense, and M. I. M. Martins. "Use of infrared thermography to evaluate the inflammatory reaction in cat testis after intratesticular injection of 0.9% NaCl or 20% CaCl2 with 1% lidocaine." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 71, no. 3 (June 2019): 929–38. http://dx.doi.org/10.1590/1678-4162-10741.

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ABSTRACT Due to the doubts and questions about the inflammatory reaction caused by chemical castration, this study aimed to use infrared thermography to detect, evaluate and monitor the inflammatory reaction caused by the intratesticular injection of calcium chloride (CaCl2) 20% with lidocaine 1%. For this, thermographic measurements were taken before (M0), 10 minutes (M1), 1 and 6 hours (M2 and M3), for 7 consecutive days (M4 to M10), at 15 (M11), 30 (M12) and 60 (M13) days after intratesticular injection. Additionally, changes to testicular tissue and effects over spermatogenesis were evalua

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Vieira Neto, Maurício Francisco, Bruna Farias Brito, Marcimar Silva Sousa, Maria Gorete Flores Salles, Aderson Martins Viana Neto, José Ferreira Nunes, Vicente José de Figueirêdo Freitas, and Airton Alencar de Araujo. "Testicular thermography and seminal quality in bucks submitted to intermittent scrotal insulation in a tropical climate." Semina: Ciências Agrárias 42, no. 2 (February 24, 2021): 721–34. http://dx.doi.org/10.5433/1679-0359.2021v42n2p721.

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Testicular degeneration is highly prevalent in ruminants reared in a tropical climate in Brazil. It is therefore necessary to assess semen quality periodically in this animals. The objective of this work was to define standards images (thermograms) by using infrared thermography (TIV), associated with computerized seminal evaluation (CASA) to predict testicular alterations in a non-invasive way. For this, 10 goat males were selected, and testis insulated to evaluate the seminal quality and testicular superficial temperature recorded in four different moments: before, during and early and later

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Nowakowski, Antoni. "Problems of Active Dynamic Thermography Measurement Standardization in Medicine." Pomiary Automatyka Robotyka 25, no. 3 (September 13, 2021): 51–56. http://dx.doi.org/10.14313/par_241/51.

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Reliability of thermographic diagnostics in medicine is an important practical problem. In the field of static thermography, a great deal of effort has been made to define the conditions for thermographic measurements, which is now the golden standard for such research. In recent years, there are more and more reports on dynamic tests with external stimulation, such as Active Dynamic Thermography, Thermographic Signal Reconstruction or Thermal Tomography. The subject of this report is a discussion of the problems of standardization of dynamic tests, the choice of the method of thermal stimulat

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Garrido, Iván, Susana Lagüela, Stefano Sfarra, Hai Zhang, and Xavier P. V. Maldague. "Automatic Detection and Delimitation of Internal Moisture in Mosaics from Thermographic Sequences. Experimental Tests." Proceedings 27, no. 1 (September 17, 2019): 7. http://dx.doi.org/10.3390/proceedings2019027007.

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InfraRed Thermography, IRT, is one of the most recent techniques to monitor heritage elements, finding existing pathologies in order to implement the required maintenance tasks. However, most IRT results on cultural heritage are interpreted subjectively. Then, this work presents a methodology for the automatic detection and delimitation of moisture inside a heritage element, a mosaic in this case, from a thermographic sequence, based on the analysis of the temperature distribution of the thermal images acquired. Comparing the experimental test results with typical thermographic algorithms, the

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Chudzicka-Adamczak, Marta. "Thermal insulation of a public transport vehicle - tram with the use of thermal imaging measurements." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 20, no. 1-2 (February 28, 2019): 171–75. http://dx.doi.org/10.24136/atest.2019.030.

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The article presents the possibility of using thermography to assess the quality of thermal insulation of public transport vehicles on the example of a tram. Such tests are aimed at detecting places where there is an uncontrolled heat loss. Thermographic tests were carried out for two trams: from the eighties of the twentieth century and from the present.

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Galla, Stanisław, and Alicja Konczakowska. "Application of Infrared Thermography to Non-Contact Testing of Varistors." Metrology and Measurement Systems 20, no. 4 (December 1, 2013): 677–88. http://dx.doi.org/10.2478/mms-2013-0058.

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Abstract Testing of varistors using thermography was carried out in order to assess their protective properties against possible overvoltage phenomena in the form of high-level voltage surges. An advantage of the thermography technique is non-contact temperature measurement. It was proposed to assess the properties of varistors working in electronic devices as protective elements, on the basis of estimating temperature increments on varistor surfaces, registered by an infrared camera during surge resistance tests with standard voltage levels. To determine acceptable temperature increments on a

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8

Lipski, Adam, and Dariusz Boroński. "Use of Thermography for the Analysis of Strength Properties of Mini-Specimens." Materials Science Forum 726 (August 2012): 156–61. http://dx.doi.org/10.4028/www.scientific.net/msf.726.156.

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This paper presents sample applications of passive infrared thermography for research on temperature changes of mini-specimens resulting from monotonously increasing or cyclically variable mechanical load. The MFS system developed in the Department of Machine Design at the University of Technology and Life Sciences in Bydgoszcz (Poland) and designed for testing mechanical properties of microelements were used for tests. The MFS system ensures nanometric measurement accuracy of many static and fatigue-related material properties, including, i.a., static tension curves, cyclic strain curves, fat

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Kaledin, V. O., E. A. Vyachkina, D. A. Galdin, O. N. Budadin, and S. O. Kozelskaya. "ELECTRIC POWER THERMOGRAPHY CONSTRUCTIONS MADE OF COMPOSITE MATERIALS." Kontrol'. Diagnostika, no. 254 (2019): 22–27. http://dx.doi.org/10.14489/td.2019.08.pp.022-027.

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A new control technology for electrically conductive composite materials (electric power thermography) is proposed, based on the excitation of a thermal field in the defect area (cracks) by passing an electric current with simultaneous application of a power load, which makes it possible to detect “stuck” cracks in composite materials using rather simple technical means. Theoretical and experimental studies have shown the possibility of identifying delaminations and cracks in the grids of a complex structure of composite materials using electrodiagnosis with temperature field measurement. The

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10

Liu, Kaixin, Fumin Wang, Yuxiang He, Yi Liu, Jianguo Yang, and Yuan Yao. "Data-Augmented Manifold Learning Thermography for Defect Detection and Evaluation of Polymer Composites." Polymers 15, no. 1 (December 29, 2022): 173. http://dx.doi.org/10.3390/polym15010173.

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Infrared thermography techniques with thermographic data analysis have been widely applied to non-destructive tests and evaluations of subsurface defects in practical composite materials. However, the performance of these methods is still restricted by limited informative images and difficulties in feature extraction caused by inhomogeneous backgrounds and noise. In this work, a novel generative manifold learning thermography (GMLT) is proposed for defect detection and the evaluation of composites. Specifically, the spectral normalized generative adversarial networks serve as an image augmenta

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11

Dziarski, Krzysztof, Arkadiusz Hulewicz, and Grzegorz Dombek. "Thermographic Measurement of the Temperature of Reactive Power Compensation Capacitors." Energies 14, no. 18 (September 12, 2021): 5736. http://dx.doi.org/10.3390/en14185736.

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An excessive increase in reactive power consumption is unfavorable from the point of view of a power system. For this reason, devices compensating reactive power consumption are used. The capacitor is one such device. Capacitors must be tested regularly during their exploitation. One of the activities that should be performed is testing the degree of heating of the cells of a capacitor bank. Thermography can be used to perform such tests. This non-contact method has its limitations. Due to the angular emissivity and the change in the distance between the lens and the object under observation,

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Samborski, Tomasz, and Andrzej Zbrowski. "The Use of Thermography in Verification Tests of a Prototype Calorimeter Chamber." Solid State Phenomena 223 (November 2014): 238–45. http://dx.doi.org/10.4028/www.scientific.net/ssp.223.238.

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The article discusses the use of thermography in verification tests of a prototype calorimeter chamber constituting a part of a test stand for actuators used in smoke and ventilation systems. Based on the prototype control methodology developed at the ITeE – PIB, the authors identified areas posing a potential threat to the proper functioning of the system. The measurements of the temperature distribution on the outer surface of the chamber in the identified areas (trouble spots) are shown. The measurements were taken in thermal conditions related to tests conducted in compliance with the proc

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Meng, Dewei, Shibin Lin, and Hoda Azari. "Reducing Thermal Reflections for Infrared Thermography Applications on Tunnel Liners with Reflective Finishes." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 41 (June 20, 2018): 145–55. http://dx.doi.org/10.1177/0361198118780711.

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Infrared thermography (IRT) has been employed as a non-destructive evaluation (NDE) method to detect delaminations in bridge decks by ASTM standards since 2003. Compared to other NDE methods, IRT is fast in data acquisition and processing. In addition to applications on bridge decks, IRT can be employed to detect defects in other structures such as roadway pavements and tunnel liners. Recent IRT applications on tunnel liners with reflective finishes such as ceramic tiles show that the IRT results can be severely contaminated by infrared reflections of the vehicles and the illuminating systems

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Barbosa, JS, AMAM Amorim, MJALLA Arruda, GBS Medeiros, APLF Freitas, LEM Vieira, DP Melo, and PM Bento. "Infrared thermography assessment of patients with temporomandibular disorders." Dentomaxillofacial Radiology 49, no. 4 (May 1, 2020): 20190392. http://dx.doi.org/10.1259/dmfr.20190392.

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Objectives: To assess patients with and without temporomandibular disorders (TMD) infrared thermography according to the differences in thermal radiance using quantitative sensitivity and specificity tests; and to evaluate the thermal asymmetry and the correlation of the thermal intensity with the intensity of pain upon palpation. Methods: This cross-sectional study performed a quantitative evaluation of clinical and thermographic examinations. The volunteers were evaluated for the presence of TMD using RDC/TMD (Diagnostic Research Criteria for Temporomandibular Disorders), and were divided in

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15

Pinheiro, Andressa Mella, Angélica Tamara Tuono, Nathália Arnosti Vieira, Tiago Marques de Rezende, Sérgio Henrique Borin, Charlini Simoni Hartz, Carlos Roberto Padovani, Fernando Carmelo Torres, and João Paulo Borin. "ACUTE EFFECT OF SPEED TEST ON THE SKIN TEMPERATURE OF ELITE SOCCER PLAYERS." Revista Brasileira de Medicina do Esporte 27, no. 1 (January 2021): 55–59. http://dx.doi.org/10.1590/1517-8692202127012020_0060.

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ABSTRACT Introduction Infrared thermography has been used in several areas, mainly in sports training, and specifically in soccer. Objectives The objectives of the study were to verify the acute effect of a displacement speed test on the skin temperature of elite female soccer players, to observe pre- and post-test thermal asymmetries, and to compare responses in the anterior and posterior regions of lower limbs. Methods Cross-sectional study that evaluated 17 soccer players of the 2018 Brazilian Championship. They were submitted to thermography before and 10 minutes after performing the displ

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Dindorf, Carlo, Eva Bartaguiz, Elena Janowicz, Michael Fröhlich, and Oliver Ludwig. "Effects of Unilateral Muscle Fatigue on Thermographic Skin Surface Temperature of Back and Abdominal Muscles—A Pilot Study." Sports 10, no. 3 (March 8, 2022): 41. http://dx.doi.org/10.3390/sports10030041.

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The present study aimed to assess the effects of asymmetric muscle fatigue on the skin surface temperature of abdominal and back muscles. The study was based on a pre-post/follow-up design with one group and included a total of 41 subjects (22 male, 19 female; age, 22.63 ± 3.91; weight, 71.89 ± 12.97 kg; height, 173.36 ± 9.95). All the participants were asked to perform side bends in sets of 20 repetitions on a Roman chair until complete exhaustion. The pre-, post- and follow-up test (24 h after) skin surface temperatures were recorded with infrared thermography. Subjective muscle soreness and

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Dihtiar, V. A., and D. H. Vernihora. "Varicocele in children and adolescents. History and current view and state of problem (literature review)." Paediatric Surgery. Ukraine, no. 1(70) (March 29, 2021): 68–73. http://dx.doi.org/10.15574/ps.2021.70.68.

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A literature review on the subject of varicocele in children which include historical data and question about: etiopathogenesis, epidemiology, diagnostics, treatment and long-term outcomes. The diagnostic method of varicocele unchanged until the XX century and consisted of visual examination and palpation with or without Valsava maneuver. But after entering in diagnostic protocol contrast venography, thermography of testis and ultrasound examination, this protocol have significant changes. For a long time, phlebography has been considered the «gold standard» for the diagnosis of varicocele. Bu

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Gordiyenko, E. Yu, M. I. Glushchuk, Yu V. Fomenko, G. V. Shustakova, I. I. Dzeshulska, and Yu F. Ivanko. "Nondesructive Testing of Composite Materials of Aircraft Elements by Active Thermography." Science and innovation 14, no. 2 (May 11, 2018): 37–47. http://dx.doi.org/10.15407/scine14.02.037.

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Velázquez-López, J., M. A. Cruz-Gómez, M. A. Ruelas-Oronia, F. Dipp-Velázquez, A. Dib-Kanan, and Z. Méndez-Mancilla. "Analysis and simulation of heat transfer in human tooth during the curing of orthodontic appliance and food ingestion." APOS Trends in Orthodontics 6 (May 30, 2016): 137–46. http://dx.doi.org/10.4103/2321-1407.183153.

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The aim of this study was to analyze and simulate the heat transfer in the human tooth undergoing fixed orthodontic appliances and food intake. An in vivo representative mathematic model of a layered thermographic profile was developed during the LED curing of Gemini bracket 0.022 in slot (conventional ligating system) and Transbond XT adhesive. The characterization of the layered thermic response allowed to identify if during the LED curing process, according to manufacturer’s specification (light curing unit, adhesive) can induce pulpar necrosis. The profile’s thermographic model was the sim

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Pauline, Elizabeth, Carreño-Alvarado, and Gilberto Reynoso Meza. "Water Leak Detection by Termographic Image Analysis, In Laboratory Tests." Proceedings 48, no. 1 (May 15, 2020): 15. http://dx.doi.org/10.3390/ecws-4-06440.

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One of the most undesirable failures is water loss due to leaks in the supplying system; there are mainly two types of water losses: the visible and the non-visible. Within the non-visible we have those that are detectable by acoustic methods and those that are not. Here we decide to study new techniques for leak detection, since non-visible leaks are more difficult to find (detect). This is the aim of this paper. In a previous stage we have been studying the possibility of obtaining thermographic images to develop visualization techniques on pipes as an option for leak detection. Analyzing th

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Liu Yingtao, 刘颖韬, 许路路 Xu Lulu, 何方成 He Fangcheng, 李硕宁 Li Shuoning та 杨党纲 Yang Danggang. "环境因素对闪光灯激励红外热成像外场检测的影响". Infrared and Laser Engineering 50, № 12 (2021): 20210711. http://dx.doi.org/10.3788/irla20210711.

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Cruz-Segura, Alejandro, María P. Cruz-Domínguez, Luis J. Jara, Ángel Miliar-García, Alejandro Hernández-Soler, Pedro Grajeda-López, Michel A. Martínez-Bencomo, and Daniel H. Montes-Cortés. "Early Detection of Vascular Obstruction in Microvascular Flaps Using a Thermographic Camera." Journal of Reconstructive Microsurgery 35, no. 07 (May 8, 2019): 541–48. http://dx.doi.org/10.1055/s-0039-1688749.

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Background In microsurgical reconstruction, vascular obstruction occurs in approximately 20% of patients. Close monitoring is central to their care. Clinical/Doppler detection of vascular obstruction could be enhanced by thermography. Methods A diagnostic test design included consecutive cases of hospitalized patients, ≥18 years old, who underwent surgery with free flaps. Two researchers separately evaluated patients with clinical/Doppler methods and thermographic camera hourly for 24 hours, every 2 hours for the next 24 hours, and then every 3 hours until discharge. The gold standard was visu

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Lerma, C., Á. Mas, E. Gil, J. Vercher, and M. J. Peñalver. "Pathology of Building Materials in Historic Buildings. Relationship Between Laboratory Testing and Infrared Thermography." Materiales de Construcción 64, no. 313 (April 1, 2013): e009. http://dx.doi.org/10.3989/mc.2013.06612.

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Redivo Júnior, Nildo, Camila Dutra de Souza, Ellyn Amanda Fonseca Martins, Tatiana Issa Uherara, Milton Mendes Cattini, Daniel Oliveira Creste, Felipe Rydygier de Ruediger, and Marcelo George Mungai Chacur. "Scrotal thermography to assess the seminal quality in Nelore and Girolando bulls." Semina: Ciências Agrárias 41, no. 1 (January 10, 2020): 131. http://dx.doi.org/10.5433/1679-0359.2020v41n1p131.

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Bull selection by andrological examination aims to estimate the reproductive capacity of the male. Bulls of zebu origin adapt better to high temperatures than bulls of taurine origin, which may influence scrotum temperature and seminal quality due to the imbalance of testicular thermoregulation. The objective of this study was to investigate the relationship between bioclimatic variables, the temperature of body and scrotal areas, assessed with infrared thermography, and the quality of fresh and post-thawed semen in zebu Nelore bulls (Bos taurus indicus) and Girolando bulls (Bos taurus taurus

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Sinan Şahin, Ömer, Murat Selek, and Şirzat Kahramanlı. "Investigation of Bending Fatigue of Composite Plates by Using Infrared Thermography." Advanced Materials Research 268-270 (July 2011): 406–11. http://dx.doi.org/10.4028/www.scientific.net/amr.268-270.406.

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In this study, the temperature rise of composite plates with a hole during fatigue loading was investigated. Woven glass/epoxy composite plates with eight plies were subjected to bending fatigue loading and materials were observed by using a thermal camera during the test. Previous works showed that a heat generation can form due to internal friction and damage formation. Therefore, a thermographic infrared imaging system was used to detect the temperature rise of composite specimens. During the tests, the thermal images of the specimens have been recorded by a thermal camera and then transfer

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Synaszko, Piotr, Michał Sałaciński, and Łukasz Kornas. "The Effect of Environmental Flight Conditions on Damage Propagation in Composite Sandwich Structure." Fatigue of Aircraft Structures 2015, no. 7 (December 1, 2015): 24–27. http://dx.doi.org/10.1515/fas-2015-0004.

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Abstract The aim of the study was to determine the traceability of damage growth caused by inclusions of water in the composite sandwich structure. It was assumed that as a result of temperature changes during the flight and accompanying phase transformation, the zone containing water inclusions increases. The growth is caused by the destruction (mainly the tearing of walls) of the core. As part of the work, this assumption was verified experimentally. For the experiment to be successful it was necessary to simulate actual flight conditions. The simulation involved inducing phase transformatio

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Meola, Carosena, Giovanni Maria Carlomagno, Carmela Bonavolontà, and Massimo Valentino. "Monitoring Composites under Bending Tests with Infrared Thermography." Advances in Optical Technologies 2012 (November 7, 2012): 1–7. http://dx.doi.org/10.1155/2012/720813.

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The attention of the present paper is focused on the use of an infrared imaging device to monitor the thermal response of composite materials under cyclic bending. Three types of composites are considered including an epoxy matrix reinforced with either carbon fibres (CFRP) or glass fibres (GFRP) and a hybrid composite involving glass fibres and aluminium layers (FRML). The specimen surface, under bending, displays temperature variations pursuing the load variations with cooling down under tension and warming up under compression; such temperature variations are in agreement with the bending m

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Ramos Silva, António José, Mário Vaz, Sofia Leite, and Joaquim Mendes. "Infrared Lock-in Thermography Tests with Optical Feedback." U.Porto Journal of Engineering 8, no. 6 (November 28, 2022): 1–12. http://dx.doi.org/10.24840/2183-6493_008.006_0001.

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Thermography using a period light stimulation. However, the results are highly dependent on the accuracy of the stimulation source and its dynamic response. This work aimed to evaluate the quality of a light source as a thermal stimulation and its influence on the quality of the lock-in tests performed in PMMA samples. For this purpose, it was developed an enhanced technique, feedback lock-in thermal testing (FLTT), which uses a light sensor to measure the real light stimulation. With this solution, it was possible to improve the signal-to-noise ratio of the amplitude and phase images by appro

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Park, Jung Yul, Juno Park, Sang Dae Kim, Se Hoon Kim, and Dong Jun Lim. "Role of Intraoperative Infrared Thermography for Prediction of Successful Percutaneous Radiofrequency Sympathectomy for Palmar Hyperhidrosis." Key Engineering Materials 321-323 (October 2006): 813–16. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.813.

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Tests for successful surgical results for refractory palmar hyperhidrosis in the past usually involve starch test, plethysmograpy, and direct measurement of skin temperature. However, these tests are either inconvenient, inadequate or unable to be used during operation. Authors have used IR thermography during percutaneous radiofrequency sympathectomy to verify its usefulness as guide for evaluating the successful results. A total of 14 patients with persistent palmar hyperhidrosis were included. Average age was 28.2 years (range 21-36 years). Average duration of symptom was 24 months. All pro

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Köhn, Horst, Adolf Mostbeck, Otto Lofferer, Beatrix König, and Christa Swetly. "Non-Invasive Screening for Deep Vein Thrombosis: Comparison between 99mTc-labelled Compounds, Thermography, 131 I-Fibrinogen Uptake Test and X-Ray Phlebography." Phlebology: The Journal of Venous Disease 1, no. 1 (June 1986): 65–72. http://dx.doi.org/10.1177/026835558600100113.

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In 81 patients with clinically suspected deep vein thrombosis, the diagnostic accuracy of thermography, 99m Tc-plasmin and 99m Tc-fibrinogen uptake tests for detecting and localizing DVT was compared with a routinely used 131 I-FUT and X-ray phlebography as reference method. Sensitivity of these tests for detection of DVT was high (0.86–1.0). 99m Tc-labelled compounds and thermography should be used for detecting rather than for localizing DVT, since sensitivity of these tests was somewhat lower in the thigh. Clinical examination and exclusion of patients with inflammatory processes, hematoma

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Haraszti, Ferenc. "Thermographic Inspection in the Electric Industry." Acta Materialia Transilvanica 1, no. 2 (October 1, 2018): 77–80. http://dx.doi.org/10.2478/amt-2018-0026.

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Abstract The traditional inspection of fittings used in the electrical industry is a cumbersome, dangerous process in terms of safety and operation. However, with the spread of thermography, these tests can be performed simpler, faster, and more safely through electrical connections. This article presents the possibilities, measurement difficulties and the advantages of thermography analysis [1-2].

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Addepalli, Sri, Yifan Zhao, John Ahmet Erkoyuncu, and Rajkumar Roy. "Quantifying Uncertainty in Pulsed Thermographic Inspection by Analysing the Thermal Diffusivity Measurements of Metals and Composites." Sensors 21, no. 16 (August 14, 2021): 5480. http://dx.doi.org/10.3390/s21165480.

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Pulsed thermography has been used significantly over the years to detect near and sub-surface damage in both metals and composites. Where most of the research has been in either improving the detectability and/or its applicability to specific parts and scenarios, efforts to analyse and establish the level of uncertainty in the measurements have been very limited. This paper presents the analysis of multiple uncertainties associated with thermographic measurements under multiple scenarios such as the choice of post-processing algorithms; multiple flash power settings; and repeat tests on four m

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Constantin, Nicolae, Viorel Anghel, Mircea Găvan, and Ştefan Sorohan. "Contributions in the Study of Hybrid Layered Composites under Static and Variable Loads." Key Engineering Materials 385-387 (July 2008): 485–88. http://dx.doi.org/10.4028/www.scientific.net/kem.385-387.485.

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The research work behind this paper focused a rather extensive assessment of hybrid composites made of pure aluminium sheets, alternating with GFRP and CFRP layers. Static, fatigue and low velocity impact tests were performed, combined with NDI on damaged samples, using Lockin thermography, on specimens obtained from the two hybrid laminates and from genuine GFRP and CFRP laminates, all having five layers. The static and fatigue tests were made on parallel specimens, un-notched and having a central 5 mm drilled hole, with various failure modes. The low velocity impact tests were followed by CA

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Lai, Hong-Shiee, Yuan-Chao Duh, Wen-Shiung Tsai, and Wei-Zen Sun. "Role of Thermography in the Diagnosis of Undescended Testes." European Urology 33, no. 2 (1998): 209–13. http://dx.doi.org/10.1159/000019538.

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XUE, H., D. WAGNER, N. RANC, and E. BAYRAKTAR. "Thermographic analysis in ultrasonic fatigue tests." Fatigue Fracture of Engineering Materials and Structures 29, no. 7 (July 2006): 573–80. http://dx.doi.org/10.1111/j.1460-2695.2006.01024.x.

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Kamińska, Paulina, Jarosław Ziemkiewcz, Piotr Synaszko, and Krzysztof Dragan. "Comparison of Pulse Thermography (PT) and Step Heating (SH) Thermography in Non-Destructive Testing of Unidirectional GFRP Composites." Fatigue of Aircraft Structures 2019, no. 11 (December 1, 2019): 87–102. http://dx.doi.org/10.2478/fas-2019-0009.

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AbstractThis paper presents two techniques of active thermography i.e. the pulsed thermography technique and the step heating technique. The aim of this article is to compare these two techniques and present the possibilities, advantages and limitations of their use in the context of non-destructive testing of composite materials. The experimental section presents the results of tests carried out on samples of the polymer composites reinforced with glass fiber.

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Risitano, Giacomo. "Fatigue strength evaluation of PPGF35 by energy approach during mechanical tests." Frattura ed Integrità Strutturale 16, no. 59 (December 22, 2021): 537–48. http://dx.doi.org/10.3221/igf-esis.59.35.

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Thanks to the progress of research on thermoplastic materials, the properties of composite materials have improved considerably. The aim of this study is the evaluation of fatigue strength of glass-fibre-reinforced polypropylene composite (PPGF35) by applying both the Risitano Thermographic Method (RTM) and the new Static Thermographic Method (STM).

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Wei, Wei, Cheng Li, Yibo Sun, Hongji Xu, and Xinhua Yang. "Investigation of the Self-Heating of Q460 Butt Joints and an S-N Curve Modeling Method Based on Infrared Thermographic Data for High-Cycle Fatigue." Metals 11, no. 2 (January 29, 2021): 232. http://dx.doi.org/10.3390/met11020232.

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In this study, we investigated the fatigue behavior of Q460 welded joints using tensile fatigue tests. Furthermore, real-time temperature profiles of the examined specimens were recorded by infrared thermography. Based on the obtained thermographic data, we calculated the entropy production rate of the specimens under different stress amplitudes. Hypothetically, the entropy production during high-cycle fatigue (HCF) could be divided into two parts. The first is induced by inelastic behavior that corresponds to damage accumulation, and the second originates from anelasticity associated with rec

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Mendioroz, Arantza, Lorenzo Fuggiano, Pablo Venegas, Idurre Sáez de Ocáriz, Umberto Galietti, and Agustín Salazar. "Characterizing Subsurface Rectangular Tilted Heat Sources Using Inductive Thermography." Applied Sciences 10, no. 16 (August 6, 2020): 5444. http://dx.doi.org/10.3390/app10165444.

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In this study, we characterize the lateral dimension, depth, and inclination of buried tilted rectangular heat sources from time domain temperature data measured at the surface. The heat sources are representative for planar defects that emit heat in thermographic tests with internal burst excitation. We present a semi-analytical expression for the evolution of the surface temperature distribution. The emitted flux, dimensions and inclination of the heat source are determined by fitting the model to two perpendicular surface temperature profiles and the temperature history at one point of the

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Gusella, Vittorio, Federico Cluni, and Riccardo Liberotti. "Feasibility of a Thermography Nondestructive Technique for Determining the Quality of Historical Frescoed Masonries: Applications on the Templar Church of San Bevignate." Applied Sciences 11, no. 1 (December 30, 2020): 281. http://dx.doi.org/10.3390/app11010281.

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Thermography is a non-destructive and non-contact technique allowing, without taking samples, gaining information about several aspects of heritage buildings. This contribution presents the last phase of a research path, started with laboratory tests and now aimed at a real case of great cultural value, which involved the use of the thermal imaging camera to unveil in-depth defects and the wall texture, hidden by valuable plasters or frescoes, in order to correlate the quality of the masonry to its mechanical properties. For this, a method has been devised, made of an original integration of t

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Sales, Rosemary Bom Conselho, Maria Teresa Paulino Aguilar, Fernando Augusto Sales, Sebastiana Bragança Lana, and Paulo Roberto Cetlin. "Concrete Study Using Infrared Thermography and Forced Resonant Frequency." Advanced Materials Research 168-170 (December 2010): 778–86. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.778.

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The performance of materials made from Portland cement is usually evaluated by tensile strength under compression loads, elastic modulus and porosity. Modulus of elasticity is usually determined from compression tests, and the results show large dispersions. With the advances in data acquisition and signal processing, the infrared thermography and forced resonant frequency have been increasingly used in the study of materials. However, these studies are devoted almost entirely to metals. In this paper it is evaluates the use of the method of forced longitudinal resonance frequency and infrared

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Majano, Carlos, Jorge García-Unanue, Antonio Hernandez-Martin, Javier Sánchez-Sánchez, Leonor Gallardo, and Jose Luis Felipe. "Relationship between Repeated Sprint Ability, Countermovement Jump and Thermography in Elite Football Players." Sensors 23, no. 2 (January 5, 2023): 631. http://dx.doi.org/10.3390/s23020631.

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Football is a very demanding sport which requires players to exert maximum effort, producing fatigue and eventually injuries. Thermography can be used to detect fatigue and prevent its consequences through thermal asymmetries in the bilateral body areas; however, its adequacy for elite footballers has not been widely studied. Therefore, the objective of the present investigation was to determine the suitability of thermography to detect fatigue in male football players. For this reason, twenty participants were gathered into a pair of subgroups (low [<0.2 °C] vs. high thermal asymmetry [≥0.

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Trevisiol, Francesca, Ester Barbieri, and Gabriele Bitelli. "Multitemporal Thermal Imagery Acquisition and Data Processing on Historical Masonry: Experimental Application on a Case Study." Sustainability 14, no. 17 (August 24, 2022): 10559. http://dx.doi.org/10.3390/su141710559.

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The recent improvement of infrared image quality has increased the use of thermography as a non-destructive diagnostic technique. Amongst other applications, thermography can be used to monitor historic buildings. The present work was carried out within the framework of the Horizon 2020 European project SHELTER, which aims to create a management plan for cultural heritage subject to environmental and anthropogenic risk. Among the chosen case studies is the Santa Croce Complex in Ravenna (Italy), which is exposed to different hazards, including flooding. The church has a peculiar architecture t

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Patil, Yashashri, S. Khirwadkar, S. M. Belsare, Rajamannar Swamy, M. S. Khan, S. Tripathi, and K. Bhope. "R&D on divertor plasma facing components at the Institute for Plasma Research." Nukleonika 60, no. 2 (June 1, 2015): 285–88. http://dx.doi.org/10.1515/nuka-2015-0053.

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Abstract This paper is focused on various aspects of the development and testing of water cooled divertor PFCs. Divertor PFCs are mainly designed to absorb the heat and particle fluxes outflowing from the core plasma of fusion devices like ITER. The Divertor and First Wall Technology Development Division at the Institute for Plasma Research (IPR), India, is extensively working on development and testing of divertor plasma facing components (PFCs). Tungsten and graphite macro-brush type test mock-ups were produced using vacuum brazing furnace technique and tungsten monoblock type of test mock-u

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Addab, Y., M. Richou, M. Ramaniraka, N. Vignal, E. Visca, G. Dose, S. Roccella, H. Greuner, M. Missirlian, and J. H. You. "Typology of defects in DEMO divertor target mockups." Physica Scripta 96, no. 12 (November 24, 2021): 124065. http://dx.doi.org/10.1088/1402-4896/ac3875.

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Abstract We analyzed data from ultrasonic testing and infrared thermography non-destructive examinations performed on a subset of 25 small scale water-cooled target mockups of four target designs developed in the 2nd R&D phase of WPDIV. Examinations were performed before high heat flux tests for the 25 mockups and after high heat flux tests for 18 of them. The detected manufacturing defects are various in size and location. Widths of defects range from 0.2 to 12 mm, which is the entire block width. Angular sizes of defects range from few degrees to 360°. Defects having an angular size less

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Bauer, Elton, Vasco Peixoto de Freitas, Niubis Mustelier, Eva Barreira, and Sara Stingl de Freitas. "Infrared thermography – evaluation of the results reproducibility." Structural Survey 33, no. 1 (April 13, 2015): 20–35. http://dx.doi.org/10.1108/ss-05-2014-0021.

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Purpose – Infrared thermography is increasingly being used to diagnose pathologies in buildings, such as façade defects. The purpose of this paper is to assess the results reproducibility and the equipment influence on the measurements. To do so, it was defined as case study the assessment of rendering delamination. Design/methodology/approach – Two infrared cameras of different makers were used to detect the presence of defects deliberately created in specimens. The tests were done in the laboratory with a heat source. The defects were detected through a temperature gradient between the zones

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Seppey, M., C. Hessler, M. Bruchez, M. Savary, and A. Pécoud. "Facial thermography during nasal provocation tests with histamine and allergen." Allergy 48, no. 5 (July 1993): 314–18. http://dx.doi.org/10.1111/j.1398-9995.1993.tb02399.x.

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Tartarini, P., M. A. Corticelli, and L. Tarozzi. "Dropwise cooling: Experimental tests by infrared thermography and numerical simulations." Applied Thermal Engineering 29, no. 7 (May 2009): 1391–97. http://dx.doi.org/10.1016/j.applthermaleng.2008.06.011.

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Kucharska, Milena, and Justyna Jaskowska-Lemańska. "Active Thermography in Diagnostics of Timber Elements Covered with Polychrome." Materials 14, no. 5 (February 28, 2021): 1134. http://dx.doi.org/10.3390/ma14051134.

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The contribution of natural wood defects such as knots is an important factor influencing the strength characteristics of structural timber. This paper discusses the use of active thermography in the timber diagnostics, particularly in the determination of the knot area ratio (KAR) in elements covered with paint coatings. Moreover, on the basis of thermal images, the localization for the subsequent semi-destructive tests (SDTs) was established. Three different sources of external energy supply were used in the studies: laboratory dryer, air heater and halogen lamps. The active thermography tes

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Żaba, Krzysztof, Sandra Puchlerska, Marzanna Książek, Ryszard Sitek, Paweł Wiśniewski, and Jarosław Mizera. "Investigations of Model Multilayer Ceramic Casting Molds in a Raw State by Nondestructive Methods." Materials 14, no. 24 (December 15, 2021): 7761. http://dx.doi.org/10.3390/ma14247761.

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This article presents the results of research on the use of modern nondestructive methods such as 3D scanning, thermography and computed tomography (CT) to assess the quality of multilayer ceramic molds. Tests were performed on spherical samples of multilayer ceramic molds in the raw state. Samples were made of molding sands composed of quartz and molochite powders, the alcoholic binder hydrolyzed ethyl silicate (ZKE) and an aqueous binder based on colloidal silica. Thickness measurements of spherical forms were made using a 3D scanner. Porosity measurements were made using CT. Additionally, t

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