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Journal articles on the topic 'Thermal flaw detection'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 May 2022

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1

McLaughlin, P. V., M. G. Mirchandani, and P. V. Ciekurs. "Infrared Thermographic Flaw Detection in Composite Laminates." Journal of Engineering Materials and Technology 109, no. 2 (1987): 146–50. http://dx.doi.org/10.1115/1.3225954.

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Research performed to develop thermography as a routine rapid flaw detection tool for large composite structures is presented. The externally applied thermal field (EATF) technique is described whereby surface cracks or sub-surface impact damage creates detectable surface temperature perturbations when heated. EATF thermographic procedures and flaw detection capabilities in multidirectional and unidirectional graphite and glass fiber composites are described. The method’s advantages and limitations are outlined.

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2

Maldague, Xavier P. "Subsurface flaw detection in reflective materials by thermal-transfer imaging." Optical Engineering 30, no. 1 (1991): 117. http://dx.doi.org/10.1117/12.55760.

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Nucera, Claudio, Robert Phillips, and Francesco Lanza di Scalea. "Ultrasonic Guided Wave Monitoring of Railroad Tracks." Advances in Science and Technology 83 (September 2012): 198–207. http://dx.doi.org/10.4028/www.scientific.net/ast.83.198.

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Among structural concerns for the safety of rail transportation are internal flaws and thermal stresses, both of which can cause disruption of service and even derailments. Ultrasonic guided waves lend themselves to addressing both of these problems. This paper reports on two inspection systems for rails being developed at UCSD under the auspices of the US Federal Railroad Administration. Both systems utilize ultrasonic guided waves as the main probing mechanism, for the two different applications of flaw detection and thermal stress detection.

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Kaufmann, Guillermo H., Matías R. Viotti, and Gustavo E. Galizzi. "Flaw Detection Improvement in Temporal Speckle Pattern Interferometry Using Thermal Waves." Journal of Holography and Speckle 1, no. 2 (2004): 80–84. http://dx.doi.org/10.1166/jhs.2004.011.

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5

Kaufmann, Guillermo H. "Flaw detection using lock-in temporal speckle pattern interferometry and thermal waves." Optical Engineering 46, no. 11 (2007): 115601. http://dx.doi.org/10.1117/1.2801725.

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Kozelskaya, S. "Integrated thermal flaw detection technology of complex spatial composite structures in operation." Journal of Physics: Conference Series 1636 (September 2020): 012023. http://dx.doi.org/10.1088/1742-6596/1636/1/012023.

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Komolikov, Yu I., S. E. Chernykh, I. D. Kashcheev, and V. N. Kostin. "Flaw detection of tubural refractory products by the method of thermal testing." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 9 (November 24, 2021): 55–57. http://dx.doi.org/10.17073/1683-4518-2021-9-55-57.

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Yang, Ping, Ge Jing, and Cui Ming Li. "The Calculation and Analysis of the Infrared Thermal Wave Nondestructive Testing for the Defects of the Parts in the Turnout Point Switch." Applied Mechanics and Materials 328 (June 2013): 393–99. http://dx.doi.org/10.4028/www.scientific.net/amm.328.393.

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This paper did quantitive flaw detection research to the defective parts of turnout point switch by using infrared thermal wave nondestructive testing based of the theory of infrared nondestructive testing. By using ANSYS, I made the numeric simulation test to parts of the inside known defection point switch, and made calculation and analysis for the result of this numeric simulation test. The result demonstrated that this method can achieve the quantitive infrared thermal wave nondestructive testing to defective parts of point switch.

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9

Li, Zhuo Qiu, Xiong Zhang, and Jiang Tao Zhang. "Solution of Transient Temperature Field for Thermographic NDT Under Joule Effect Heating." Journal of Heat Transfer 127, no. 7 (2005): 670–74. http://dx.doi.org/10.1115/1.1924625.

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Conducting infrared thermographic nondestructive testing (NDT) by the internal heat generated by Joule effect of components is a new heating approach for flaw detection. Due to the combination of electric field and thermal field, the irregular geometric boundary and the complicated internal heat source distribution, the theoretical solution of transient temperature field is very difficult. Nowadays numerical solution by FEM and FDM is mainly applied. By adopting certain assumptions, this paper presents a method to obtain the approximate temperature field by using Green’s function, and gives th

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Tang, Jin Jun, Cui Liang, and Chen Guang Xu. "Effect of Pore Defect Size and Location on Damage Tolerance of Aluminum Alloy Piston and Fiber Ring Groove." Materials Science Forum 1053 (February 17, 2022): 205–11. http://dx.doi.org/10.4028/p-tm5h6i.

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The defects of high-power density piston aluminum alloy components involved in this paper include surface crack, internal crack, shrinkage cavity and cold shut. The service condition of piston components is 350°C-420°C, and the explosion pressure of piston crown is 28Mpa. The requirements for eddy current flaw detection of this component are in accordance with a and requirements in GB / T5126-2013 eddy current flaw detection standard, that is, it is not allowed to be greater than 0.12mm × 0.2mm × 3mm volumetric defects, and Ф1.0mm flat bottom hole equivalent point defect. For the piston compon

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11

Karpov, D. "APPLICATION OF ACTIVE AND PASSIVE THERMAL CONTROL IN DEFECTOSCOPY OF CONSTRUCTION MATERIALS AND PRODUCTS, FILLER STRUCTURES OF BUILDINGS AND CONSTRUCTIONS." Construction Materials and Products 2, no. 4 (2020): 39–44. http://dx.doi.org/10.34031/2618-7183-2019-2-4-39-44.

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one of the perspective and modern methods of nondestructive testing – thermal control is considered. The possibilities and advantages of thermal control in the identification of defects in various building materials and products, enclosing structures of buildings and structures are given. The short characteristics of the main defects of building materials and products, buildings and structures are proposed. The basic principles of identification of hidden (invisible) and obvious (visible) defects are briefly considered and practical results of construction flaw detection of objects for various

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Chulkov, A. O., D. A. Nesteruk, B. I. Shagdyrov, and V. P. Vavilov. "Method and Equipment for Infrared and Ultrasonic Thermographic Testing of Large-Sized Complex-Shaped Composite Products." Russian Journal of Nondestructive Testing 57, no. 7 (2021): 619–26. http://dx.doi.org/10.1134/s1061830921070044.

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Abstract The robotic equipment for and the technique of combined thermal nondestructive testing (NDT) of large-sized products by zones with subsequent data synthesis are described. The effectiveness of the combination of two methods, infrared and ultrasonic thermographic testing, is shown by the example of the developed complex-shaped reference sample with 18 simulators of production and operational defects. The developed algorithms for the synthesis of test results, including spatial “matching” of a set of thermograms and automated flaw detection and defect characterization with the use of ne

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Storozhenko, Volodymyr, Roman Orel, and Aleksandr Mjagky. "Optimization of the procedure of thermal flaw detection of the honeycomb constructions by improving the accuracy of interference function." Eastern-European Journal of Enterprise Technologies 5, no. 5 (83) (2016): 12–18. http://dx.doi.org/10.15587/1729-4061.2016.79563.

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Kareva, Nadezhda T., Djomi T. Chungakov, and Nikita A. Zavartsev. "The Research of Heat-Resistant Layer Defects Formed during the Surfacing of Nickel Alloy on the Exhaust Valve Chamfer." Materials Science Forum 989 (May 2020): 133–38. http://dx.doi.org/10.4028/www.scientific.net/msf.989.133.

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The final set of properties of the exhaust valve is formed in the course of the entire set of processes, the most important is the build-up of the valve chamfer which is subjected to constant high temperatures, gas flow and thermal cycling, therefore strict adherence to the whole complex of properties is necessary. In the study two materials were investigated: the deformable part of the base material (steel grade 40X10C2M (EN steel grade X40CrSiMo10)) and surfacing (alloy EP616A), used to manufacture the exhaust valve of the internal-combustion engine.The study was carried out at different sta

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Derkachev, Igor, Alexander Kustov, Mikhail Kulakov, and Oleg Baklanov. "Monitoring of Properties Subjected to Innovative Technological Treatments of Subsurface Layers of Materials by AMD-Methods." Key Engineering Materials 910 (February 15, 2022): 713–19. http://dx.doi.org/10.4028/p-w8c19g.

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In this paper, it is proposed to use modern research AMD-methods to monitor the properties of the subsurface layers of materials subjected to innovative technological treatments. They are based on the analysis of the parameters of acoustic waves reflected from the subsurface layers of the studied materials. The technological processing leads to a change in the acoustic characteristics, the value of which is calculated by the values of the parameters of the material of the samples. The effectiveness of the application of methods of acoustic-microscopic flaw detection for the analysis of the sta

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Qu, Xiu Jie, Fu Zhang, and Ying Zhang. "Feature-Level Fusion of Dual-Band Infrared Images Based on Gradient Pyramid Decomposition." Applied Mechanics and Materials 347-350 (August 2013): 2380–84. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.2380.

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Infrared thermal imager has been widely used in the fields of missile guidance and flaw detection. To identify the target clearly, the advanced one adopts dual bands sensors to capture images. Since of that, there is an urgent need of a fusion of the dual-bands images. The fused result includes much more exhaustive information than any single one, and can better reflect the actual. Among the algorithms used to fuse the dual-band infrared images, the weighted algorithm is the most widely used and easiest to be achieved. Nonetheless, its effect is not desired. We extract the features of the sour

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Бобко, Yuriy Bobko, Синчугов, and Ilya Sinchugov. "Nondestructive Testing of Composite Structures Specimens by Shearography." NDT World 19, no. 4 (2015): 4–7. http://dx.doi.org/10.12737/23494.

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New composite materials call for a new approach to the nondestructive testing. The goal of this article is to show the advantages of shearography in comparison with other testing methods. The article describes the main principles of shearography as one of the interferometric methods. Applying various types of loading (thermal, mechanical, vibration, pressure, etc.) makes it possible to visualize various types of defects. High sensitivity and operativeness of the noncontact method, possibility of using many types of loading on the tested samples, non-contact testing of the object in question, a

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Bosomworth, Chris, Maksym Spiryagin, Sanath Alahakoon, and Colin Cole. "MODELLING RAIL THERMAL DIFFERENTIALS DUE TO BENDING AND DEFECTS." Transport 36, no. 2 (2021): 134–46. http://dx.doi.org/10.3846/transport.2021.14574.

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Rail foot flaws have the potential to cause broken rails that can lead to derailment. This is not only an extremely costly issue for a rail operator in terms of damage to rolling stock, but has significant flow-on effects for network downtime and a safe working environment. In Australia, heavy haul operators run up to 42.5 t axle loads with trains in excess of 200 wagons and these long trains produce very large cyclic rail stresses. The early detection of foot flaws before a broken rail occurs is of high importance and there are currently no proven techniques for detecting rail foot flaws on t

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19

Huang, Haibo, Wenlei Sun, Yong Huang, and Jiangtong Yu. "Properties of Curved Parts Laser Cladding Based on Controlling Spot Size." Applied Sciences 10, no. 2 (2020): 728. http://dx.doi.org/10.3390/app10020728.

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In this study, a method based on controlling the laser spot size was proposed in the process of curved parts laser cladding, and the coatings obtained by this method were analysed through investigation of the microstructure, microhardness, adhesion property and wear resistance properties. The nonuniform rational B-spline surface (NURBS) reconstruction method was used to obtain the workpiece geometrical characteristics of laser cladding, and through the establishment of a mathematical model, the process of the laser beam working on the curved surface was simplified as the intersection of the cy

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20

Chaban, N. I., I. V. Rybitskyi, M. O. Karpash, and V. D. Myndiuk. "APPROBATION AND ANALYSIS OF EXPERIMENTAL RESEARCHES'S RESULTS OF THE EXTENDED METHOD OF PHYSICAL-MECHANICAL CHARACTERISTICS STEELS'S CONTROL." Prospecting and Development of Oil and Gas Fields, no. 4(69) (November 29, 2018): 37–49. http://dx.doi.org/10.31471/1993-9973-2018-4(69)-37-49.

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Most of the oil and gas equipment complex is subjected to cyclic-variable, mechanical, thermal loads and corrosive-active environment. These effects causing a change in the structural statr of the metal contribute to the accelerated development of defects, especially in places with stress concentrators, which ultimately lead to the constructions destruction. Available ultrasonic, electromagnetic, and eddy-current non-destructive testing methods are currently aimed at solving defect detection problems. However, it is more important to timely identify the initial stage of the process of da

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21

Kim, Changmin, Jae-Sol Choi, Hyangin Jang, and Eui-Jong Kim. "Automatic Detection of Linear Thermal Bridges from Infrared Thermal Images Using Neural Network." Applied Sciences 11, no. 3 (2021): 931. http://dx.doi.org/10.3390/app11030931.

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Detecting thermal bridges in building envelopes should be a priority to improve the thermal performance of buildings. Recently, thermographic surveys are being used to detect thermal bridges. However, conventional methods of detecting thermal bridges from thermal images rely on the subjective judgment of audits. Research has been conducted to automatically detect thermal bridges from thermal images to improve problems caused by such subjective judgment, but most of these studies are still in the early stage. Therefore, this study proposes a linear thermal bridge detection method based on image

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22

Ткач, Михаил Романович, Юрий Григорьевич Золотой, Ирина Юрьевна Жук, Юрий Николаевич Галинкин, Аркадий Юрьевич Проскурин та Владимир Сергеевич Ключник. "Экспериментальное определение вибрационных характеристик рабочих лопаток турбин помехоустойчивым цифровым спекл-интерферометром". Aerospace technic and technology, № 4sup2 (27 серпня 2021): 52–61. http://dx.doi.org/10.32620/aktt.2021.4sup2.07.

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The paper notes the wide possibilities and high efficiency of vibration diagnostics of parts and assemblies of power units by the method of electronic speckle interferometry (ESI), shows the feasibility of developing and improving methods for obtaining speckle interferograms of vibrating objects. A patented by the authors' scheme of a digital speckle interferometer (DSI) for determining the dynamic parameters of products is presented. The diffuse reference wave greatly simplifies its alignment, mainly the aligned channels of propagation of interfering beams determine the resistance to mechanic

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23

Lisowska-Lis, Agnieszka, and Piotr Siudut. "Detection of ammonia leak in laboratory conditions using a FLIR 306 camera and a portable gas detector." Science, Technology and Innovation 8, no. 1 (2020): 35–41. http://dx.doi.org/10.5604/01.3001.0014.3703.

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The study aimed to analyse detection methods of ammonia leakage by various electrical methods. Rapid detection of the escape of hazardous technical gases is extremely important in large chemical plants. The basis of the research was the use of a specialized camera, model FLIR GF306, to detect a leak of selected gases in a narrow infrared band. In laboratory conditions, the controlled emission of gaseous ammonia at various concentrations was simulated, and gas detection was performed: a) using a narrow infrared thermography method, and b) by a portable electrochemical detector dedicated to dete

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Shen, Xiao Mei, and Ju Wu Xu. "Research on Method of Building Energy Conservation Based on Infrared Imaging Measurement." Advanced Materials Research 512-515 (May 2012): 2899–903. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.2899.

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With the deepening of the energy conservation of the building, energy saving from the original design of building energy-saving gradually turned to the field detection and completion acceptance, which requires a corresponding energy-efficient means of detection. With the development of infrared technology, the combination of infrared technology and detection methods of building energy-saving, to further promote the development of building energy efficiency testing work. Compared to the traditional heat flow meter or hot-box method, infrared thermal imaging method has no effect on the measured

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Deilamsalehy, Hanieh, Timothy C. Havens, Pasi Lautala, Ezequiel Medici, and James Davis. "An automatic method for detecting sliding railway wheels and hot bearings using thermal imagery." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 231, no. 6 (2016): 690–700. http://dx.doi.org/10.1177/0954409716638703.

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One of the most important safety-related tasks in the rail industry is an early detection of defective rolling stock components. Railway wheels and wheel bearings are the two components prone to damages due to their interactions with brakes and railway track, which makes them a high priority when the rail industry investigates improvements in the current detection processes. One of the specific wheel defects is a flat wheel, which is often caused by a sliding wheel during a heavy braking application. The main contribution of this paper is the development of a computer vision method for automat

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Bedoya-Echeverry, Sebastián, Hernán Belalcázar-Ramírez, Humberto Loaiza-Correa, Sandra Esperanza Nope-Rodríguez, Carlos Rafael Pinedo-Jaramillo, and Andrés David Restrepo-Girón. "Detection of lies by facial thermal imagery analysis." Revista Facultad de Ingeniería 26, no. 44 (2017): 45. http://dx.doi.org/10.19053/01211129.v26.n44.2017.5771.

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An artificial vision system is presented for lie detection by analyzing face thermal image sequences. This system represents an alternative technique to the polygraph. Some of its features are: 1) it has no physical contact with the examinee, 2) it is non-intrusive, 3) it has a potential for private use, and 4) it can simultaneously analyze several persons. The proposed system is based on the detection of physiological changes in temperature in the lacrimal puncta area caused by the subtle increase in blood flow through the nearby vascular network. These changes take place when anxiety appears

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27

Kapiris, P. G., D. S. Mathioulakis, A. Petropoulos, and G. Kaltsas. "Flow reattachment point detection via thermal sensors - PIVevaluation." Procedia Engineering 25 (2011): 487–90. http://dx.doi.org/10.1016/j.proeng.2011.12.121.

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28

Hameed, Mustafa Q., David Zurakowski, Mark R. Proctor, et al. "Noninvasive Thermal Evaluation of Ventriculoperitoneal Shunt Patency and Cerebrospinal Fluid Flow Using a Flow Enhancing Device." Neurosurgery 85, no. 2 (2018): 240–49. http://dx.doi.org/10.1093/neuros/nyy246.

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Abstract BACKGROUND While a noninvasive flow determination would be desirable in the diagnosis of cerebrospinal fluid shunt malfunction, existing studies have not yet defined a role for thermal flow detection. OBJECTIVE To evaluate a revised test protocol using a micropumper designed to transiently enhance flow during thermal testing to determine whether thermal detection of flow is associated with progression to shunt revision surgery. METHODS Eighty-two unique tests were performed in 71 shunts. The primary outcome, need for revision within 7 d of testing, was compared with results of micropu

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Iwasaki, Yoichiro, Masato Misumi, and Toshiyuki Nakamiya. "Robust Vehicle Detection under Various Environments to Realize Road Traffic Flow Surveillance Using an Infrared Thermal Camera." Scientific World Journal 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/947272.

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To realize road traffic flow surveillance under various environments which contain poor visibility conditions, we have already proposed two vehicle detection methods using thermal images taken with an infrared thermal camera. The first method uses pattern recognition for the windshields and their surroundings to detect vehicles. However, the first method decreases the vehicle detection accuracy in winter season. To maintain high vehicle detection accuracy in all seasons, we developed the second method. The second method uses tires’ thermal energy reflection areas on a road as the detection tar

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30

Dušek, Václav, Milan Šípek, and Pavla Sunková. "Determination of Diffusion Coefficients of Gases Through a Flat Polymeric Membrane by the Method of Non-Linear Regression." Collection of Czechoslovak Chemical Communications 58, no. 12 (1993): 2836–45. http://dx.doi.org/10.1135/cccc19932836.

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Non-linear regression was applied for calculation of diffusion coefficients of gases through a flat polymeric membrane from the experimental data obtained by the flow permeation method with the thermal conductivity detection of composition of gaseous mixture. to verify this method a polyethylene and carbon dioxide was chosen. Diffusion coefficients of carbon dioxide in the low-density polyethylene of two different thickness at the temperature of 25 °C were determined with precision about ±2.5% in agreement with literature.

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Ko, Seokcheol, Hyeong-Gon Kang, Sung-Hun Lim, and Byoung-Sung Han. "Superconducting flux flow sensor used for a thermal detection." Sensors and Actuators A: Physical 113, no. 3 (2004): 265–69. http://dx.doi.org/10.1016/j.sna.2004.01.009.

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Madžgalj, A., M. L. Baesso, and M. Franko. "Flow injection thermal lens spectrometric detection of hexavalent chromium." European Physical Journal Special Topics 153, no. 1 (2008): 503–6. http://dx.doi.org/10.1140/epjst/e2008-00494-4.

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Yang, Hong Wei, Zheng Xing, and Kao Wen Zhou. "A Sensitive Formaldehyde Sensor Based on Cataluminescence Coupled with Thermal Desorption." Applied Mechanics and Materials 670-671 (October 2014): 1163–66. http://dx.doi.org/10.4028/www.scientific.net/amm.670-671.1163.

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A sensitive cataluminescence-based detecting technology using nanosized Mo4V6Ti10O47 as a probe was proposed for determination of formaldehyde in air. Trace formaldehyde was firstly absorbed on active carbon at room temperature to concentrate, then desorbed at 75°C to determine. The method showed high selectivity to formaldehyde at wavelength of 575nm, satisfying activity at temperature of 260°C and good stability at carrier flow rate of 145 ml/min. The linear range of CTL intensity versus concentration of formaldehyde was 0.04~78 mg/m3, and the detection limit (3σ) was 0.02 mg/m3. The recover

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Restrepo Girón, Andrés David. "Enhanced method for flaws depth estimation in CFRP slabs from FDTC thermal contrast sequences." Ingeniería e Investigación 35, no. 3 (2015): 61–68. http://dx.doi.org/10.15446/ing.investig.v35n3.50552.

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After the detection of internal defects in materials, the characterization of these plays a decisive role in order to establish the severity of these flaws. Finite difference thermal contrast (FDTC) is a new technique proposed recently for contrast enhancement in sequences of thermal images in order to allow the detection of internal flaws in composite slabs with greater probability of success. Besides FDTC, a criterion was also conceived for the estimation of the depth of the detected defects, which brings good results for shallow and strong contrast defects, but poor estimations for deeper a

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Shimizu, Yuki, Yuki Matsuno, Yuan-Liu Chen, and Wei Gao. "Design and Testing of a Micro Thermal Sensor for Non-Contact Surface Defect Detection." International Journal of Automation Technology 11, no. 5 (2017): 781–86. http://dx.doi.org/10.20965/ijat.2017.p0781.

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This paper presents an experimental study on a new concept of a surface defect detection method, in which surface defects will be detected by monitoring a change in heat flow between a micro thermal sensor and a smoothly-finished measuring surface such as magnetic disks, sapphire substrates and so on. In the proposed method, the micro thermal sensor is designed to detect surface defects without any contacts in between them. Since the change in heat flow across the gap is utilized, the method is expected to find out both the convex and concave defects. Searching for the possibility of the non-c

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Wang, Kangning, Bin Li, and Wenming Wu. "Compressed Air-Driven Continuous-Flow Thermocycled Digital PCR for HBV Diagnosis in Clinical-Level Serum Sample Based on Single Hot Plate." Molecules 25, no. 23 (2020): 5646. http://dx.doi.org/10.3390/molecules25235646.

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We report a novel compressed air-driven continuous-flow digital PCR (dPCR) system based on a 3D microfluidic chip and self-developed software system to realize real-time monitoring. The system can ensure the steady transmission of droplets in long tubing without an external power source and generate stable droplets of suitable size for dPCR by two needles and a narrowed Teflon tube. The stable thermal cycle required by dPCR can be achieved by using only one constant temperature heater. In addition, our system has realized the real-time detection of droplet fluorescence in each thermal cycle, w

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TANIAI, Tetsuya, Hiroshi OHBAYASHI, Takuto YAMAGUCHI, Hitoshi ISHIKAWA, Shunsuke YAMADA, and Naoko TOKUGAWA. "Detection of Flow Seoaration on Aerofoil using Thermal Image Analysis." Journal of the Visualization Society of Japan 29-1, no. 2 (2009): 1137. http://dx.doi.org/10.3154/jvs.29.1137.

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Plaçais, B., and Y. Simon. "Thermal detection of flux-flow noise in type-II superconductors." Physical Review B 39, no. 4 (1989): 2151–54. http://dx.doi.org/10.1103/physrevb.39.2151.

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Mazur-Milecka, Magdalena, Jacek Ruminski, Wojciech Glac, and Natalia Glowacka. "Detection and Model of Thermal Traces Left after Aggressive Behavior of Laboratory Rodents." Applied Sciences 11, no. 14 (2021): 6644. http://dx.doi.org/10.3390/app11146644.

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Automation of complex social behavior analysis of experimental animals would allow for faster, more accurate and reliable research results in many biological, pharmacological, and medical fields. However, there are behaviors that are not only difficult to detect for the computer, but also for the human observer. Here, we present an analysis of the method for identifying aggressive behavior in thermal images by detecting traces of saliva left on the animals’ fur after a bite, nape attack, or grooming. We have checked the detection capabilities using simulations of social test conditions inspire

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Liu, Mingqiang, and Mladen Franko. "Influences of Detection Pinhole and Sample Flow on Thermal Lens Detection in Microfluidic Systems." International Journal of Thermophysics 35, no. 12 (2014): 2178–86. http://dx.doi.org/10.1007/s10765-014-1714-1.

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AHMAD, Akhundzadah Noor, Hirotaka SAITO, Kei ASADA, and Makoto KATO. "Detecting groundwater flow direction from infrared thermal images." Journal of Groundwater Hydrology 51, no. 2 (2009): 113–26. http://dx.doi.org/10.5917/jagh.51.113.

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Hui, Weiwei, Hexiang Zhang, Jianlei Wang, Xuanshi Meng, and Huaxing Li. "Heat transfer characteristics of plasma actuation in different boundary-layer flows." Physics of Fluids 34, no. 3 (2022): 034110. http://dx.doi.org/10.1063/5.0084420.

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The coupling characteristics of the aerodynamic and thermal effects of a surface dielectric barrier discharge plasma actuator and its transfer characteristics in different boundary-layer flows are studied experimentally. The actuator is attached to the surface of a flat-plate airfoil and driving by an alternative-current signal. Different boundary-layer flows are achieved in the wind tunnel by adjusting the airfoil's angle of attack with a Reynolds number of 2.02 × 105. The spatial temperature-rise distributions and velocity fields induced by plasma actuation in quiescent air show that the inf

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Zhou, Wen, Yi Jiang, Jing Zhang, Chunlai Yu, and Hao Zhu. "Research on Test Method of Power Sensor Battery Considering the Influence of Air Flow." Journal of Physics: Conference Series 2025, no. 1 (2021): 012101. http://dx.doi.org/10.1088/1742-6596/2025/1/012101.

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Abstract The reliability of sensor is an important index to determine the outdoor operation efficiency of power sensor, and the reliability detection of power sensor is an important means to ensure the reliability of network equipment. Based on the analysis of the thermal characteristics and thermal behavior of the battery, this paper studies the current detection methods of the low-temperature battery of the power sensor, and proposes a reliability test method of the power sensor considering the influence of outdoor airflow. Through multi-physical field simulation and analysis, the key parame

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Eidelman, A., T. Elperin, N. Kleeorin, A. Markovich, and I. Rogachevskii. "Experimental detection of turbulent thermaldiffusion of aerosols in non-isothermal flows." Nonlinear Processes in Geophysics 13, no. 1 (2006): 109–17. http://dx.doi.org/10.5194/npg-13-109-2006.

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Abstract. We studied experimentally a new phenomenon of turbulent thermal diffusion of particles which can cause formation of the large-scale aerosol layers in the vicinity of the atmospheric temperature inversions. This phenomenon was detected experimentally in oscillating grids turbulence in air flow. Three measurement techniques were used to study turbulent thermal diffusion in strongly inhomogeneous temperature fields, namely Particle Image Velocimetry to determine the turbulent velocity field, an image processing technique to determine the spatial distribution of aerosols, and an array of

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Lapušinskij, Aleksandr, Ivan Suzdalev, Nikolaj Goranin, Justinas Janulevičius, Simona Ramanauskaitė, and Gintautas Stankūnavičius. "The Application of Hough Transform and Canny Edge Detector Methods for the Visual Detection of Cumuliform Clouds." Sensors 21, no. 17 (2021): 5821. http://dx.doi.org/10.3390/s21175821.

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The increase in flying time of unmanned aerial vehicles (UAV) is a relevant and difficult task for UAV designers. It is especially important in such tasks as monitoring, mapping, or signal retranslation. While the majority of research is concentrated on increasing the battery capacity, it is also important to utilize natural renewable energy sources, such as solar energy, thermals, etc. This article proposed a method for the automatic recognition of cumuliform clouds. Practical application of this method allows diverting of an unmanned aerial vehicle towards the identified cumuliform cloud and

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Leith, J. R. "Detection of roll transitions in thermal convection." Experiments in Fluids 5, no. 5 (1987): 354. http://dx.doi.org/10.1007/bf00277716.

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Zhang Ping, 张萍, 童亚拉 Tong Yala, 欧阳光耀 Ouyang Guangyao, and 白禄峰 Bai Lufeng. "Detecting Thermal Flaw Inner Cylinder Head Based on Infrared Thermograph Technology." Laser & Optoelectronics Progress 47, no. 11 (2010): 111103. http://dx.doi.org/10.3788/lop47.111103.

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Dinh, Toan, Hoang-Phuong Phan, Afzaal Qamar, Nam-Trung Nguyen, and Dzung Viet Dao. "Flexible and multifunctional electronics fabricated by a solvent-free and user-friendly method." RSC Advances 6, no. 81 (2016): 77267–74. http://dx.doi.org/10.1039/c6ra14646e.

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Pencil-drawn flexible and multifunctional electronic devices have been proven to show potential for various applications including mass and flow sensors, human-motion detection and wearable thermal therapy.

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Hatch, Andrew C., Tathagata Ray, Kelly Lintecum, and Cody Youngbull. "Continuous flow real-time PCR device using multi-channel fluorescence excitation and detection." Lab Chip 14, no. 3 (2014): 562–68. http://dx.doi.org/10.1039/c3lc51236c.

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We have developed a ‘conveyor belt’ analog for real-time quantitative polymerase chain reaction (qPCR) in a continuous flow thermocycler. The device integrates droplet emulsion technology with LED and fiber optic fluorescence excitation in conjunction with a continuous flow thermal cycler to achieve real-time fluorescence detection.

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Yamaoka, Satomi, Yui Kataoka, Yuto Kazama, Yusaku Fujii, and Akihide Hibara. "Efficient thermal lens nanoparticle detection in a flow-focusing microfluidic device." Sensors and Actuators B: Chemical 228 (June 2016): 581–86. http://dx.doi.org/10.1016/j.snb.2016.01.072.

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