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Journal articles on the topic 'Temperature variation monitoring'

Author: Grafiati

Published: 31 August 2024

Last updated: 31 July 2025

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1

Zhou, HF, LJ Lu, ZY Li, and YQ Ni. "Performance of videogrammetric displacement monitoring technique under varying ambient temperature." Advances in Structural Engineering 22, no. 16 (2019): 3371–84. http://dx.doi.org/10.1177/1369433218822089.

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There has been an increasing number of attempts to apply videogrammetric technique to displacement measurement of civil engineering structures. Its potentials in structural health monitoring have also gained more attention. This study carried out an investigation on the effect of temperature variation on the measurement accuracy of videogrammetric technique in an effort to examine its feasibility for structural health monitoring. Long-term indoor videogrammetric measurement tests have been conducted, and the performance of the videogrammetric displacement monitoring technique under ambient tem

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2

Todoran, Tudor Paul, and Mugur Ciprian Balan. "Ground Temperature Variation around the Horizontal Collectors of a Heat Pump." Applied Mechanics and Materials 659 (October 2014): 481–86. http://dx.doi.org/10.4028/www.scientific.net/amm.659.481.

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The manuscript presents results of a 3 years experiment concerning the monitoring of temperature variation around a horizontal collector, coupled to a ground – water heat pump. Ground temperature was monitored in 7 (seven) measurement points: 1 (one) in the center of the collector area and 6 (six) at 15 cm, 30 cm and 60 cm of the collector boundary. The data processing methodology, described in the manuscript, allowed corrections, comparison with natural ground temperature variation and calculation of important characteristics of temperature variation in each measurement point. The main obtain

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SATO, Masahiko, Naoki TAMURA, and Hisataka TANAKA. "D12 Transient Temperature Variation beneath Rake Face in End Milling(Monitoring of machining process)." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2009.5 (2009): 457–60. http://dx.doi.org/10.1299/jsmelem.2009.5.457.

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Wen, Tao, Zheng Hu, Yankun Wang, Zihan Zhang, and Jinshan Sun. "Monitoring and Analysis of Geotemperature during the Tunnel Construction." Energies 15, no. 3 (2022): 736. http://dx.doi.org/10.3390/en15030736.

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High geotemperatures are encountered during tunnel construction in areas with complex geological structures, which can seriously affect personnel and equipment in the process of tunnel construction and operation. The Nige tunnel, a deep-buried extra-long tunnel, was selected to monitor the geotemperature during construction. The air, rock, and water temperatures during the tunnel construction were measured at the tunnel face, and the actual temperatures of the rock or water body at the tunnel face were measured by advanced drilling. The variation trends of the water temperature, air temperatur

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Berry, R. J., A. D. Kennedy, S. L. Scott, B. L. Kyle, and A. L. Schaefer. "Daily variation in the udder surface temperature of dairy cows measured by infrared thermography: Potential for mastitis detection." Canadian Journal of Animal Science 83, no. 4 (2003): 687–93. http://dx.doi.org/10.4141/a03-012.

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The daily and within-day variation in udder temperature was monitored in dairy cows (n = 10) using infrared thermography (IRT). The initial assessment and prediction of udder surface temperature variation would hopefully form the basis for future development of an early detection method for mastitis. Our initial objective was to determine the magnitude and pattern of udder temperature variation. To accomplish this, we measured daily fluctuations in udder temperature and the influence of environmental factors upon these values in non-mastitic cows. Udder temperature rose significantly after an

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Banerjee, Tathagata, and Sumedha Moharana. "Monitoring thermal defects in rail and rail joints using piezo impedance-based structural health monitoring (PISHM)." Engineering Research Express 4, no. 1 (2022): 015014. http://dx.doi.org/10.1088/2631-8695/ac4e9a.

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Abstract Rail track derailment has been proven to be the cause of most of the rail accidents in recent years. High-temperature strains in railways caused by rail traction and thermal variation are the main causes of derailment, which lead to buckling. The likelihood of passenger deaths and maintenance costs will be reduced if thermal strains and failure in rails are detected early. This research attempts to provide a preventative strategy for detecting thermal strains and deformation caused by temperature fluctuations at railways. Using the electromechanical impedance (EMI) technique, piezoele

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Wu, Junpeng, Jian Cai, Jiyuan Yang, Jian Zhang, and Zhiquan Zhou. "A High Reliability Damage Imaging Method Under Environmental Temperature Variations." Journal of Physics: Conference Series 2184, no. 1 (2022): 012036. http://dx.doi.org/10.1088/1742-6596/2184/1/012036.

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Abstract In Lamb wave-based structural health monitoring (SHM), the environmental temperature variations can easily affect Lamb wave monitoring signals and seriously reduce the reliability of final damage detection results. To resolve the temperature effect problem, a temperature compensation method of improved baseline signal stretch (IBSS) is presented and applied for high reliability damage imaging under large environmental temperature variations in this paper. After the basic principle of IBSS is analyzed, the realization of IBSS is discussed. Then, a IBSS-based high reliability damage ima

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Huynh, Thanh-Canh, Young-Hwan Park, Jae-Hyung Park, Dong-Soo Hong, and Jeong-Tae Kim. "Effect of Temperature Variation on Vibration Monitoring of Prestressed Concrete Girders." Shock and Vibration 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/741618.

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The effect of temperature variation on vibration monitoring of prestressed concrete (PSC) girders is experimentally analyzed. Firstly, vibration features such as autoregressive (AR) coefficient, correlation coefficient of power spectral density (CC of PSD), natural frequency, and mode shape are selected to estimate the effect of temperature variation on vibration characteristics of PSC girders. Secondly, vibration experiments on a lab-scale PSC girder are performed under the condition of temperature variation. Finally, the vibration features with respect to the temperature variation are analyz

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Moreddu, Rosalia, Mohamed Elsherif, Haider Butt, Daniele Vigolo, and Ali K. Yetisen. "Contact lenses for continuous corneal temperature monitoring." RSC Advances 9, no. 20 (2019): 11433–42. http://dx.doi.org/10.1039/c9ra00601j.

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10

Rose, Mark A., and John W. White. "SPATIAL AND TEMPORAL TEMPERATURE VARIATION IN A GREENHOUSE." HortScience 25, no. 9 (1990): 1114e—1114. http://dx.doi.org/10.21273/hortsci.25.9.1114e.

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Temperature affects all major plant physiological processes. Traditional methods of controlling greenhouse temperatures use aerial sensors that do not monitor temperatures within each component of the soil-plant-atmosphere continuum.Bench, pot, plant canopy, and aerial temperatures were monitored using thermocouples and thermistors processed by environmental computers during a wide range of greenhouse conditions. These include diurnal cycles of high and low solar radiation, night periods with and without artificial lighting, and various ventilation and heating conditions. Spatial temperature g

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Carvajal Rodriguez, Felipe Andrés, Luis Augusto Koenig Veiga, and Wilson Alcântara Soares. "Temperature Acquisition System for Real Time Application of First Velocity Correction by EDM (Electronic Distance Measurement)." Geoplanning: Journal of Geomatics and Planning 8, no. 1 (2021): 61–74. http://dx.doi.org/10.14710/geoplanning.8.1.61-74.

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The first velocity correction is used to correct the measured distance affected by the velocity variation of the electromagnetic wave propagation in a medium. This correction depends on the refractive index of the propagation medium and reference refractive index. The influence of the temperature in the medium refractive index is critical; some estimates establish that variation 1°C causes 1ppm of error in distances. In the measuring processes with total stations, the temperature is usually collected at only one point, for example, in the position where the measuring instrument is setup. Howev

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Freytes, M. V., A. Donofrio, and A. E. Juarez. "THERMAL MONITORING IN MICROCHANNELS." Anales AFA 36, no. 1 (2025): 16–20. https://doi.org/10.31527/analesafa.2025.36.1.16.

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This article presents a method for temperature monitoring in microchannels. A microfluidic platform was designed fortemperature sensing. The variation in fluorescence intensity emitted by a sample marked with rhodamine B, whose fluorescence strongly depends on temperature, was monitored. A microfluidic device with a copper insert capable of inducing a temperature gradient in the fluid flowing through a microchannel, by passing a current intensity through the insert, was constructed. It was found that the recorded fluorescence intensity profiles are consistent with the expected temperature grad

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Zhou, Yi, and Limin Sun. "Insights into temperature effects on structural deformation of a cable-stayed bridge based on structural health monitoring." Structural Health Monitoring 18, no. 3 (2018): 778–91. http://dx.doi.org/10.1177/1475921718773954.

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Structural deformation is an important consideration in the health monitoring of bridges, and its dependence on temperature variations is quite complex. Based on field measurements performed for an operational cable-stayed bridge, the proposed study investigates mechanisms of thermally induced variations in girder length and mid-span deflection through plane geometric and finite element analyses. The objective of this study is to understand the behaviour of such bridges over annual and diurnal cycles. It has been observed that the girder length and mid-span deflection of a cable-stayed bridge

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Lopes, Thiago Glissoi, Renata Maia Rocha, Paulo Roberto Aguiar, Felipe Aparecido Alexandre, and Thiago Valle França. "Evaluating Temperature Influence on Low-Cost Piezoelectric Transducer Response for 3D Printing Process Monitoring." Proceedings 42, no. 1 (2019): 26. http://dx.doi.org/10.3390/ecsa-6-06571.

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The 3D printing process deals with the production of three-dimensional objects with defined geometries. However, this manufacturing process has a crucial point established at the beginning of the object manufacturing, where anomalies can occur and compromise the entire object produced. The piezoelectric diaphragm has been studied as an alternative to the conventional acoustic emission (AE) sensor concerning the monitoring of structures and processes. It has in its assembling a ceramic element with piezoelectric properties, which makes its response sensitive to temperature variations. The Penci

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Li, Gao, Fubiao Zhou, Zhandong Su, Jingshan Bo, Xiang Chen, and Chi Li. "In Situ Research on the Spatiotemporal Variations in the Temperature and Deformation of Aeolian Sand-Modified Soil Roadbed Constructed in Cold Regions." Advances in Civil Engineering 2022 (August 12, 2022): 1–18. http://dx.doi.org/10.1155/2022/7323463.

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Aiming at the cracking phenomenon of an aeolian sand-modified soil roadbed in an actual project near Tongliao city in eastern Inner Mongolia, Northeast China, an in situ test was conducted. Temperature-compensated fiber Bragg grating (FBG) strain sensors and moisture sensors were embedded into the test roadbed to monitor and observe the relationships between the temperature, moisture, and deformation of the roadbed with respect to variations in climate conditions in such a cold region. For the core issues of roadbed soil deformation and impact on the project, two climate conditions, namely, te

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Ehrlich, P. F., G. Vedulla, N. Cottrell, and P. A. Seidman. "Monitoring intraoperative effectiveness of caudal analgesia through skin temperature variation." Journal of Pediatric Surgery 38, no. 3 (2003): 386–89. http://dx.doi.org/10.1053/jpsu.2003.50113.

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17

Sepehry, N., M. Shamshirsaz, and F. Abdollahi. "Temperature variation effect compensation in impedance-based structural health monitoring using neural networks." Journal of Intelligent Material Systems and Structures 22, no. 17 (2011): 1975–82. http://dx.doi.org/10.1177/1045389x11421814.

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In this article, a new method for temperature compensation on the basis of artificial neural networks (ANNs) in impedance-based structural health monitoring (ISHM) has been introduced. ISHM using piezoelectric wafer active sensors (PWAS) has been extensively developed to provide detection of fault in structure. The principle of this method is based on the electromechanical coupling effect of PWAS materials. Any change in structure leads to changes in mechanical impedance of structure. The electrical impedance of PWAS can sense this change by the electromechanical coupling effect of PWAS. There

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Liu, Tao, Tao Jiang, Gang Liu, and Changsen Sun. "Transfer-Learning-Based Temperature Uncertainty Reduction Algorithm for Large Scale Oil Tank Ground Settlement Monitoring." Sensors 24, no. 1 (2023): 215. http://dx.doi.org/10.3390/s24010215.

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Sensors operating in open-air environments can be affected by various environmental factors. Specifically, ground settlement (GS) monitoring sensors installed in oil tanks are susceptible to non-uniform temperature fields caused by uneven sunshine exposure. This disparity in environmental conditions can lead to errors in sensor readings. To address this issue, this study aimed to analyze the impact of temperature on GS monitoring sensors and establish a mapping relationship between temperature uncertainty (fluctuations of measurement caused by temperature variation) and temperature variation.

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Shan, Wenchen, Xianqiang Wang, and Yubo Jiao. "Modeling of Temperature Effect on Modal Frequency of Concrete Beam Based on Field Monitoring Data." Shock and Vibration 2018 (2018): 1–13. http://dx.doi.org/10.1155/2018/8072843.

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Temperature variation has been widely demonstrated to produce significant effect on modal frequencies that even exceed the effect of actual damage. In order to eliminate the temperature effect on modal frequency, an effective method is to construct quantitative models which accurately predict the modal frequency corresponding to temperature variation. In this paper, principal component analysis (PCA) is conducted on the temperatures taken from all embedded thermocouples for extracting input parameters of regression models. Three regression-based numerical models using multiple linear regressio

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Pathak, Prasad, Pranav Pandya, Sharvari Shukla, Aamod Sane, and Raja Sengupta. "A Sensor Placement Strategy for Comprehensive Urban Heat Island Monitoring." ISPRS International Journal of Geo-Information 12, no. 1 (2022): 11. http://dx.doi.org/10.3390/ijgi12010011.

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Urban heat islands (UHIs) increase the energy consumption of cities and impact the health of its residents. In light of the correlation between energy consumption and health and UHI variations observed at a local level within the canopy layer, satellite-derived land surface temperatures (LSTs) may be insufficient to provide comprehensive information about these deleterious effects. For both LST and air temperatures to be collected in a spatially representative and continuous manner, and for the process to be affordable, on-ground temperature and humidity sensors must be strategically placed. T

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Baral, Sushmita, Prateek Negi, Sailesh Adhikari, and Suresh Bhalla. "Temperature Compensation for Reusable Piezo Configuration for Condition Monitoring of Metallic Structures: EMI Approach." Sensors 23, no. 3 (2023): 1587. http://dx.doi.org/10.3390/s23031587.

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This paper presents a novel algorithm for compensating the changes in conductance signatures of a piezo sensor due to the temperature variation employed in condition monitoring using the electro-mechanical impedance (EMI) approach. It is crucial to consider the changes in an EMI signature due to temperature before using it for comparison with the baseline signature. The shifts in the signature due to temperature can be misinterpreted as damages to the structure, which might also result in a false alarm. In the present study, the compensation values are calculated based on experiments on piezo

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Doubenskaia, Maria, Sergey Grigoriev, Ivan Zhirnov, and Igor Smurov. "Parametric analysis of SLM using comprehensive optical monitoring." Rapid Prototyping Journal 22, no. 1 (2016): 40–50. http://dx.doi.org/10.1108/rpj-04-2014-0046.

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Purpose – This paper aims to propose methods for on-line monitoring and process quality assurance of Selective Laser Melting (SLM) technology as a competitive advantage to enhance its implementation into modern manufacturing industry. Design/methodology/approach – Monitoring of thermal emission from the laser impact zone was carried out by an originally developed pyrometer and a charge-coupled device (CCD) camera which were integrated with the optical system of the PHENIX PM-100 machine. Experiments are performed with variation of the basic process parameters such as powder layer thickness (0-

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Küsel, Frank, Elsabe Kearsley, Liam J. Butler, Sarah A. Skorpen, and M. Z. E. B. Elshafie. "Measured temperature effects during the construction of a prestressed precast concrete bridge beam." MATEC Web of Conferences 199 (2018): 11013. http://dx.doi.org/10.1051/matecconf/201819911013.

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Prestress losses in precast concrete beams include the short-term effects of elastic shortening and the long-term effects of concrete shrinkage, concrete creep and steel relaxation. Temperature effects are, however, excluded. The aim of this research was to monitor the behaviour of a prestressed precast concrete bridge beam, focussing on temperature effects and destressing. Successful monitoring assists in comparing the real performance of a structure to the expected design performance, and in managing the durability of the monitored structure. The effect of temperature variation on strains in

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Ghorat, Mohsen, Gevork B. Gharehpetian, Hamid Latifi, Maryam A. Hejazi, and Mehdi Bagheri. "High-Resolution FBG-Based Fiber-Optic Sensor with Temperature Compensation for PD Monitoring." Sensors 19, no. 23 (2019): 5285. http://dx.doi.org/10.3390/s19235285.

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This paper presented a new sensor to detect and localize partial discharge (PD) in power transformers based on a fiber Bragg grating (FBG). The fundamental characteristics of the proposed sensor, as a PD detector, were temperature compensation and direction independence. The proposed high-resolution PD detector operated based on the FBG wavelength shift. It is necessary to evaluate the physical parameters of the sensor to achieve the best results. Therefore, in this paper, the detected signal strength was investigated for different angles and temperatures. A Teflon hollow mandrel and two FBGs

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Watson, D. K., and RKND Rajapakse. "Seasonal variation in material properties of a flexible pavement." Canadian Journal of Civil Engineering 27, no. 1 (2000): 44–54. http://dx.doi.org/10.1139/l99-049.

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Seasonal variation of temperature and moisture causes considerable changes in the load-carrying capacity of pavements in geographical areas subjected to extreme freeze/thaw conditions. The Seasonal Monitoring Program (SMP) of the Long Term Pavement Performance (LTPP) study of the Federal Highway Administration (FHWA) monitors seasonal variations in Falling Weight Deflectometer (FWD) deflections, air temperature, rainfall, soil temperature, moisture content, and soil electrical resistance at numerous sites across North America. This study relates changes in pavement load carrying capacity repre

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Miesner, F., A. Lechleiter, and C. Müller. "Reconstructing bottom water temperatures from measurements of temperature and thermal diffusivity in marine sediments." Ocean Science 11, no. 4 (2015): 559–71. http://dx.doi.org/10.5194/os-11-559-2015.

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Abstract. Continuous monitoring of oceanic bottom water temperatures is a complicated task, even in relatively easy-to-access basins like the North or Baltic seas. Here, a method to determine annual bottom water temperature variations from inverse modeling of instantaneous measurements of temperatures and sediment thermal properties is presented. This concept is similar to climate reconstructions over several thousand years from deep borehole data. However, in contrast, the presented method aims at reconstructing the recent temperature history of the last year from sediment thermal properties

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Nilesh M. Patil, P M. Krishna, G. Deena, C Harini, R.K. Gnanamurthy, and Romala V. Srinivas. "Exploring real-time patient monitoring and data analytics with IoT-based smart healthcare monitoring." Scientific Temper 14, no. 04 (2023): 1196–201. http://dx.doi.org/10.58414/scientifictemper.2023.14.4.21.

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This research study endeavours to explore the dynamic temporal variations in patient health parameters, specifically heart rate, temperature, and Systolic Blood Pressure (SBP), within the context of a synthetic patient dataset. The analysis of heart rate data revealed distinct patterns of temporal variation, characterized by cyclic fluctuations within each hour and an overall increasing trend over the observation period. These findings Highlights the influence of circadian rhythms, potential associations with physical activity and stress, and the broader physiological implications for patient

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Vu, Nga T. T. "A Simulation Method for Temperature Monitoring of Medium Voltage Underground Cables Insulation." International Journal of Electrical and Electronic Engineering & Telecommunications 14, no. 3 (2025): 180–87. https://doi.org/10.18178/ijeetc.14.3.180-187.

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Temperature is one of the primary causes of medium voltage cable failures. When the temperature exceeds the allowable limit, the cable components may degrade, affecting the lifespan and operational efficiency of the power system. In order to maintain the safe operation of power systems and minimize the likelihood of severe accidents, it is crucial to analyze the temperature distribution in medium voltage underground cables. In this study, the time-dependent temperature distribution within the 5.5 mm thick Cross-Linked Polyethylene (XLPE) insulation layer of medium voltage cables is analyzed us

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Chillitupa-Palomino, Luis, Carlos M. C. Renedo, Jaime H. García-Palacios, and Iván M. Díaz. "Long-Term Dynamic Monitoring of Post-Tensioning External Tendons: Temperature Effect Evaluation." Buildings 15, no. 1 (2024): 69. https://doi.org/10.3390/buildings15010069.

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Cables and tendons are crucial elements in bridge engineering but also are vulnerable structural elements because they are usually subjected to fatigue and corrosion problems. Thus, vibration-based non-destructive techniques have been used for external post-tensioning tendon assessment. Regarding continuous monitoring systems, tendon assessment is carried out through the continuous tracking of its natural frequencies and the subsequent estimation of the tension force, as this parameter is essential for the bridge’s overall structural performance, thus providing useful information about bridge

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Abouellail, A. A. "THERMOELECTRIC MONITORING OF THERMAL RESISTANCE IN ELECTRONIC SYSTEMS." Eurasian Physical Technical Journal 20, no. 3(45) (2023): 52–61. http://dx.doi.org/10.31489/2023no3/52-61.

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The article proposes to apply the method of thermoelectric testing to determine the thermophysical parameters of the thermal interface. A thermal interface is located between metal surfaces, between which, thermoelectromotive force occurs during heating at any stage of the device operation. The obtained graphs of the temperature difference dependence on the heating time, measured by thermocouples, and measured using thermoelectromotive force confirm the accuracy of the thermoelectric method of testing. Graphs visualize the heat transfer process with thermal resistance variation, temperature fl

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Shi, Yu Liang, Ming Dong Chen, and Min Li. "Comparing of Temperature Variation with Different Types Greenhouse." Advanced Materials Research 594-597 (November 2012): 2128–31. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.2128.

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Greenhouse temperature of the three different types was measured under sunny winter weather conditions. The variation regularity of greenhouses temperature with outdoor temperature was studied according to the monitoring data of experimental greenhouse, which was different roof and floor structure. The results showed that the greenhouse temperature of the herringbone roof construction higher than the greenhouse of the serration roof construction; the greenhouse temperature of the serration roof construction is higher than the greenhouse of arch roof construction. Through analysis of temperatur

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Nelson, C. F., and L. D. Nelson. "107 UNEXPLAINED VARIATION IN EMBRYO FREEZER DIGITAL READOUT." Reproduction, Fertility and Development 24, no. 1 (2012): 166. http://dx.doi.org/10.1071/rdv24n1ab107.

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Differences among frozen embryo transfer results are often observed but are usually unexplainable. One cause of possible variability in pregnancy rates could be faulty digital readout of the biological freezer unless adequate controls are routinely used. By monitoring temperatures throughout the freezing process independently of the freezer readout, differences between the embryo freezer digital readout (EFDR) vs thermocouple (TC) and digital thermometer (DT) were observed when using a Bio Cool II Alcohol Freezer. The difference between EFDR and actual temperature (TC and DT) ranged from –4.9°

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Liu, Ping, Wentao Shi, Bo Sun, Qian Wang, Xiaokun Xie, and Changqing Li. "Characteristics of the Temperature and Humidity Variations of Burial-Type Stone Relics and a Fitting Model." Applied Sciences 14, no. 5 (2024): 2157. http://dx.doi.org/10.3390/app14052157.

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Burial stone relics remain in a humid, semi-enclosed environment for long periods, and temperature and humidity variations can cause deterioration acceleration. Yang Can’s tomb was selected as the research object, and field monitoring and simulations were performed to investigate the characteristics of temperature and humidity variations, after which the simulation results were evaluated. The monitoring results showed that solar radiation, rainfall, wind speed, and depth of entry are important factors affecting the variation in the temperature and humidity of burial stone relics. The temperatu

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Lanza, Gustavo, Jaime Andres Perez-Taborda, and Alba Avila. "Improving Temperature Adaptation for Food Safety: Colorimetric Nanoparticle-Based Time–Temperature Indicators (TTIs) to Detect Cumulative Temperature Disturbances." Foods 14, no. 5 (2025): 742. https://doi.org/10.3390/foods14050742.

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The global commitment to ending hunger by 2030 has driven Colombia to align its Sustainable Development Goals (SDGs) toward reducing food waste and ensuring access to safe, nutritious food. A critical need is monitoring cumulative temperatures across food supply networks, prioritizing products over transport or storage infrastructure. This study introduces a Functional Time–Temperature Indicator (TTI) using nanodispersions of silver (Ag) and gold (Au) nanoparticles housed in 3D-printed plant-based resin containers. Nanoparticles were synthesized via three methods: in situ reduction (AgNPs), se

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Toshkova, Nia, Maksim Kolev, Stanimira Deleva, Tzvetan Simeonov, and Vasil Popov. "Winter is (not) coming: Acoustic monitoring and temperature variation across important bat hibernacula." Biodiversity Data Journal 13 (January 24, 2025): e141801. https://doi.org/10.3897/BDJ.13.e141801.

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Little is known about the winter bat activity in Bulgaria, which poses challenges in monitoring potential deviations in their behaviour as a consequence of the warming climate. Using passive acoustic monitoring, we investigated the winter activity in some of Europe's largest hibernacula. Our findings reveal cave and species-specific activity patterns. Activity was observed throughout each month of the survey, with distinct peaks on specific days. At one high-elevation site, bat activity was restricted to a single night, while the highest overall activity occurred at the highest elevation site

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Lakshmi Narayanan, Sabarigirivasan, and Umamaheswari Nambiappan. "Long-Term Impacts of Temperature Gradients on a Concrete-Encased Steel I-Girder Experiment—Field-Monitored Data." Buildings 13, no. 3 (2023): 780. http://dx.doi.org/10.3390/buildings13030780.

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This article delves into an investigation of an experimental steel I-girder section encased in concrete and its instrumentation for the purpose of analyzing temperature distributions in concrete bridges. The study aims to examine the effect of differing air temperatures and thermal loads resulting from solar radiation. Structural health monitoring sensors, including a range of temperature sensors, were connected with the girder to monitor the structural performance using the data acquisition system constantly. The collection of experimental data took place during an exceptionally cold season,

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Ji, Jun, and Hou De Han. "Inside Temperature Monitoring System of Marine Reefer Containers Based on RFID." Applied Mechanics and Materials 120 (October 2011): 485–88. http://dx.doi.org/10.4028/www.scientific.net/amm.120.485.

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The inside temperature monitoring system of marine reefer containers based on RFID is developed to make up for the shortcomings that the traditional system only depended on supply air temperature or return air temperature of the container to reflect the cargo temperature. The RFID temperature collection tags, the RFID reader and the software are designed and developed. Results of the inside temperature monitoring experiment showed that the system featured multi-points real-time monitoring, 100% readability, long reading distance and rapid reflection of the temperature variation, which may effe

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Khan, Zakir Hossain. "Relation Among Temperature, Salinity, pH and DO of Seawater Quality." Technium: Romanian Journal of Applied Sciences and Technology 2, no. 4 (2020): 39–45. http://dx.doi.org/10.47577/technium.v2i4.777.

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Worldwide coastal and marine resources provide a wide range of essential ecological, economic and social benefits. Temp (OC), pH, Salinity (ppt) and DO (mg/L) measured monthly at sampling point of seawater for twelve months monitoring period in the Bay of Bengal to monitor the variation of selected parameters at six selected locations near Moheshkhali Upazila of Cox’s Bazar District. Water samples collected from a depth of 0.5m. Temperature, pH, Salinity and DO levels and variation of respective monitoring location found consistent for a twelve months monitoring period. While temperature decre

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Liu, Ziying, Tianlai Yu, Ning Yan, and Lipeng Gu. "Variation of Ground Temperature along the Stratum Depth in Ice-rich Tundra of Hinggan Mountains Region, NE China." Geosciences 10, no. 3 (2020): 104. http://dx.doi.org/10.3390/geosciences10030104.

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A pile foundation in a permafrost region is in a negative-temperature environment, so concrete is affected by the negative temperature of the surrounding soil. It not only affects the formation of concrete strength but also leads to engineering quality accidents in serious cases. With the support of the two permafrost bridge projects of the national highway from Beijing to Mohe in the Greater Khingan Mountains region, a systematic remote dynamic monitoring method for ground temperature in ice-rich tundra is proposed. Based on the actual measurement of temperature at different strata depths and

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Han, Ye, Shuo Xia, Qingchang Wen, Pengfei Zhang, Fuzai Lv, and Zhifeng Tang. "Nonuniform Temperature Compensation in Ultrasonic Guided Wave Pipeline Health Monitoring Using Local Phase Matching." Applied Sciences 14, no. 22 (2024): 10526. http://dx.doi.org/10.3390/app142210526.

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Faced with a complex working environment, pipelines are prone to nonuniform temperature variations, which cause nonuniform phase changes in the guided wave signals during structural health monitoring, thereby increasing the difficulty of monitoring. To address this, a simulation model is established in this paper to analyze the effects of temperature on material parameters and the variation patterns of guided wave signals. A nonuniform temperature compensation method based on local phase matching is proposed. The algorithm first uses cosine similarity to find the locally best-matched signal se

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Zegeye Teshale, Eyoab, Dai Shongtao, and Lubinda F. Walubita. "Evaluation of Unbound Aggregate Base Layers using Moisture Monitoring Data." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 3 (2019): 399–409. http://dx.doi.org/10.1177/0361198119833681.

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The behaviors of unbound aggregate base (UAB) and subgrade layers are considerably affected by seasonal moisture fluctuations which ultimately affect both their load-bearing capacity and the overall performance of the pavement structure. As part of an effort towards designing optimal performing pavements, this study was undertaken to evaluate, characterize, and quantify the effects of moisture and temperature variations on UAB and subgrade materials commonly used in Minnesota. The scope included analyses of subsurface moisture and temperature measurements and characterization of moisture varia

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Kosugi, Akira, Iwao Matsuya, and Ikuo Ihara. "Feasibility Study on Noncontact Monitoring of Temperature Distributions of Rotating Tool." Applied Mechanics and Materials 372 (August 2013): 336–39. http://dx.doi.org/10.4028/www.scientific.net/amm.372.336.

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In the fields of materials science and engineering, measuring temperature has become one of the most fundamental and important issues. In particular, there are growing demands for monitoring temperature gradient and its transient variation of materials being processed at higher temperatures because the temperature state during processing crucially influences the quality of final products. Such temperature monitoring is also required for rotating machining processes such as tuning, milling and friction stir welding (FSW). In this work, a new noncontact method for monitoring temperature distribu

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Gao, Lei, Baoquan Ji, Gangqiang Kong, Xu Huang, Mingkun Li, and Ali H. Mahfouz. "Distributed Measurement of Temperature for PCC Energy Pile Using BOFDA." Journal of Sensors 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/610473.

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PCC energy pile is a new technology for sustainable development of urban areas. Learning and understanding the temperature variation of PCC energy pile are very important to its development and application. In this study, the Brillouin optical frequency domain analysis (BOFDA) technology is firstly used to measure the temperature variation of PCC energy pile from a model test. The aim is to provide an optical fiber sensing method for monitoring the temperature distribution of PCC energy pile. When the temperatures of circulating water are 70°C, 60°C, 50°C, and 40°C, the result shows that the t

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Jiang, Zhao Hui, Chun Sheng Wang, Jing Zhang, Yi Yue, and Shao Wen Li. "Online Monitoring and Analysis of Plant Photosynthetic Physiology and Environmental Factors." Applied Mechanics and Materials 241-244 (December 2012): 75–80. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.75.

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It is very important for researching the growth and cultivation of plants that real-time monitoring of photosynthetic physiology & environmental parameters and analysis of relationship between these parameters. In this paper, an indoor cultivated Michelia alba monitoring system was built, which could continuously monitor leaf's CO2 exchange rate, transpiration rate, air temperature and humidity, soil moisture, photosynthetically active radiation and other parameters in real time, and could also analyze the relationship between the photosynthetic physiological parameters and environmental p

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Ourabit, S., B. Choukri, A. Benchattou, and M. Elghachi. "Implementation of a Temperature Monitoring and Measurement Network in the Urban Context: A Case Study of Kasba Tadla, Morocco, 2022." IOP Conference Series: Earth and Environmental Science 1398, no. 1 (2024): 012024. http://dx.doi.org/10.1088/1755-1315/1398/1/012024.

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Abstract In the context of climate change, this study focuses on the impact of heatwaves, which have become the dominant meteorological phenomenon in terms of duration and intensity. The objective is to understand the temporal variation of temperatures in the urban domain, highlighting thermal differences on an hourly scale. The city of Kasba Tadla, located in the Tadla plain in Morocco, is at the core of this research. This rapidly expanding urban area is traversed by the Oum Er-rbia River. The selection of this region allows for a specific analysis of the climate challenges a rapidly growing

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Xu, Xiaohua, Jia Luo, and Kefei Zhang. "An Analysis of the Structure and Variation of the Tropopause over China with GPS Radio Occultation Data." Journal of Navigation 64, S1 (2011): S103—S111. http://dx.doi.org/10.1017/s0373463311000336.

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The status of the tropopause has impact on weather phenomena and climate change occurring in the atmosphere of the Earth. The investigation of structure and variation of the tropopause plays a significant role in an in-depth understanding of water vapour exchange, mass and chemical materials across the tropopause, and their impacts on climate change and ecological environment. With the advantages of high vertical resolution, global coverage, unbiased instrumentation, and long-term stability, GPS Radio Occultation (RO) data is ideal for the monitoring of tropopause structure. In this research,

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Dai, Lingquan, Haibo Liu, Wei Li, Zhengyang Tang, and Yang Xu. "Monitoring and analysis of vertical thermal structure of the Three Gorges Reservoir." E3S Web of Conferences 118 (2019): 03035. http://dx.doi.org/10.1051/e3sconf/201911803035.

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Water temperature plays a crucial role in water ecological environment both in the reservoir and downstream area. Three Gorges Project (TGP) is the largest hydraulic engineering in the world, and changes of water quality attract much more attention, especially in the thermal structure since impoundment. In order to clearly understand water temperature distribution after impoundment in the Three Gorges Reservoir (TGR), we monitored the temperature distribution of the Taipingxi section which was not far from the dam from early April to the end of July. According to the analyzing of the monitorin

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Caputi, N., S. de Lestang, M. Feng, and A. Pearce. "Seasonal variation in the long-term warming trend in water temperature off the Western Australian coast." Marine and Freshwater Research 60, no. 2 (2009): 129. http://dx.doi.org/10.1071/mf08199.

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Previous studies have demonstrated that one area of greatest increase in surface sea temperatures (SST) (0.02°C per year) in the Indian Ocean over the last 50 years occurs off the lower west coast of Australia, an area dominated by the Leeuwin Current. The present paper examines water temperature trends at several coastal sites since the early 1970s: two rock lobster puerulus monitoring sites in shallow water (<5 m); four sites from a monitoring program onboard rock lobster vessels that provide bottom water temperature (<36 m); and an environmental monitoring site at Rottnest (0–50 m dep

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Hermenean, Ioana Sinziana, Ion Visa, Anca Duta, and Dorin Valentin Diaconescu. "MODELING TEMPERATURE VARIATION IN A CPV SYSTEM." Environmental Engineering and Management Journal 10, no. 2 (2011): 263–69. http://dx.doi.org/10.30638/eemj.2011.039.

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Xu, Shijie, Fengyuan Yu, Xiaofei Zhang, Yiwen Diao, Guangming Li, and Haocai Huang. "Monitoring Thermal Exchange of Hot Water Mass via Underwater Acoustic Tomography with Inversion and Optimization Method." Remote Sensing 16, no. 6 (2024): 1105. http://dx.doi.org/10.3390/rs16061105.

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Thermal exchange of underwater water mass caused by marine heat wave is a hot point of research recently. In particular, because the water temperature observation along hot water mass transportation is hard work. Acoustic tomography is an advanced method to measure water temperature variations via sound signal transmission with multi-station network sensing. The 5 kHz frequency acoustic tomography used for observing water temperature variations caused by ocean heat waves is interesting work. In this paper, the numerical simulation of hot water mass is completed first, then floatation and diffu

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