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Artykuły w czasopismach na temat „Temperature-related- thermal effects”

Autor: Grafiati
Data publikacji: 5 czerwca 2025
Data aktualizacji: 1 sierpnia 2025

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1

Hüseyin, Fırat KAYIRAN. "Usabilitiy of Chebyshev Pseudospectral method with finite element method on circular discs." Asia Mathematika 6, no. 1 (2022): 46——53. https://doi.org/10.5281/zenodo.6580397.

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In this study, the thermal stress behavior of a disk modeled under a linear increasing temperature distribution is investigated. The temperature limit conditions are determined as 30°C, 40°C, 50°C, 60°C and 70°C. The stresses were determined analytically using a computer program developed in the study, using the Finite element method (FEM) ANSYS (2022-R1) program, and using the Psedudospectral Chebyshev method. With the Chebyshev method, high-precision solutions can be obtained using a small number of braids. The main purpose of this study is to investigate the th
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2

Liu, Hao, Xia Sheng Sun, and Xiao Dong Li. "Modal Analysis of Wing Considering Transient Thermal Effects." Applied Mechanics and Materials 444-445 (October 2013): 1400–1406. http://dx.doi.org/10.4028/www.scientific.net/amm.444-445.1400.

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The severe aerodynamic heating on the surface of modern hypersonic flight vehicle, that can bring high temperature and large temperature gradients in the structure of the vehicle, will be a challenge for the vehicles design and multidisciplinary optimization. The transient thermal environment consists of high temperature and large temperature gradients will generate two important problems related to vehicle structure, namely: 1) the material property, such as elastic modulus, will be degraded at elevated temperature, and 2) the non-uniform thermal stress cased by large temperature gradients wi
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3

Maes, Marc A., Walter H. Dilger, and Peter D. Ballyk. "Extreme values of thermal loading parameters in concrete bridges." Canadian Journal of Civil Engineering 19, no. 6 (1992): 935–46. http://dx.doi.org/10.1139/l92-112.

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The present paper addresses the question of developing design criteria for thermal effects in concrete bridges. The objective is to determine extreme temperature effects having specified return periods. The parameters of the local meteorological regime which critically affect the extreme thermal effects are identified. Their variation in time is analyzed and related to the thermal loading parameters in a concrete bridge. These include average temperature, temperature difference between sections, linear temperature differential, and residual temperature fields. The analysis of the extreme value
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4

Förster, Andrea, J. Schrötter, D. F. Merriam, and David D. Blackwell. "Application of optical‐fiber temperature logging—An example in a sedimentary environment." GEOPHYSICS 62, no. 4 (1997): 1107–13. http://dx.doi.org/10.1190/1.1444211.

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Continuous‐temperature depth logs, especially when recorded in boreholes under thermal equilibrium conditions, provide detailed information of the subsurface thermal structure, which is necessary for the determination of reliable heat‐flow and rock thermal properties. In conjunction with independent thermal‐conductivity determinations, thermal logging data also allow the separation of heat conduction effects from thermal convection effects by fluid flow driven by various pressure differences such as pore fluid pressure. The Earth's thermal field is related intimately to geothermal resources an
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5

Yuan, Meng, Hanlin Yin, Yitong Liu, Xiaohua Wang, Long Yuan, and Yu Duan. "Synergistic Electric and Thermal Effects of Electrochromic Devices." Micromachines 13, no. 12 (2022): 2187. http://dx.doi.org/10.3390/mi13122187.

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Electrochromic devices are the preferred devices for smart windows because they work independently of uncontrollable environmental factors and rely more on the user’s personal feelings to adjust actively. However, in practical applications, the ambient temperature still has an impact on device performance, such as durability, reversibility and switching performance, etc. These technical issues have significantly slowed down the commercialization of electrochromic devices (ECDs). It is necessary to investigate the main reasons for the influence of temperature on the device and make reasonable o
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6

Wei, Yuehua, Zhenhua Wei, Xiaoming Zheng, et al. "Stress Effects on Temperature-Dependent In-Plane Raman Modes of Supported Monolayer Graphene Induced by Thermal Annealing." Nanomaterials 11, no. 10 (2021): 2751. http://dx.doi.org/10.3390/nano11102751.

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The coupling strength between two-dimensional (2D) materials and substrate plays a vital role on thermal transport properties of 2D materials. Here we systematically investigate the influence of vacuum thermal annealing on the temperature-dependence of in-plane Raman phonon modes in monolayer graphene supported on silicon dioxide substrate via Raman spectroscopy. Intriguingly, raising the thermal annealing temperature can significantly enlarge the temperature coefficient of supported monolayer graphene. The derived temperature coefficient of G band remains mostly unchanged with thermal anneali
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7

OSIŃSKI, MAREK, and WŁODZIMIERZ NAKWASKI. "THERMAL EFFECTS IN VERTICAL-CAVITY SURFACE-EMITTING LASERS." International Journal of High Speed Electronics and Systems 05, no. 04 (1994): 667–730. http://dx.doi.org/10.1142/s0129156494000267.

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A comprehensive review of temperature-related effects and thermal modeling of vertical-cavity surface-emitting lasers (VCSELs) is presented. The paper is divided into two major parts. First, the effects of temperature on device characteristics are discussed, including the temperature dependence of the longitudinal mode spectra, the threshold current, the transverse-mode structure, and the output power. A new condition is formulated for thermal matching of the Bragg mirrors and the spacer region and a comparison is made between characteristic temperatures for the threshold current (T0) and for
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8

Kallis, James, William Hammond, and Edwin Curry. "Stress Screening of Electronic Modules: An Investigation of the Effects of Temperature Rate of Change." Journal of the IEST 33, no. 2 (1990): 60–65. http://dx.doi.org/10.17764/jiet.2.33.2.k755x16667v566h0.

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A study was conducted to investigate the effects of temperature rate of change on the environmental stress screening (ESS) of printed wiring assemblies (PWA). The related effects of chamber air velocity and temperature dwell time on module temperature response also were evaluated. Tests were conducted to investigate the effects of varying thermal cycling parameter levels. The effects of various chamber air temperature rates of change and velocity levels on the temperature responses of two vastly different PWAs were measured. A thermal cycling analysis of a PWA of the same construction as one o
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9

Baldo, J. B., and W. N. dos Santos. "Phase transitions and their effects on the thermal diffusivity behaviour of some SiO2 polymorphs." Cerâmica 48, no. 307 (2002): 172–77. http://dx.doi.org/10.1590/s0366-69132002000300011.

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Thermal diffusivity is a material physical property important in all problems involving non-steady state heat transfer calculations, being a decisive parameter in the response of materials subjected to thermal shock. In this work it is presented a fundamental study related to how the phase transitions may influence the thermal diffusivity behaviour as a function of temperature in the phase transforming SiO2. The experimental technique employed was the flash thermal diffusivity technique, and measurements were carried out from 100 ºC up to approximately 1200 ºC. It was found a strong dependence
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10

Demarchi, M. W., and F. L. Bunnell. "Estimating forest canopy effects on summer thermal cover for Cervidae (deer family)." Canadian Journal of Forest Research 23, no. 11 (1993): 2419–26. http://dx.doi.org/10.1139/x93-299.

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Operative temperatures of five members of the deer family under different forest canopies during summer were estimated. Sky view factors and effective leaf area indices were obtained from hemispherical photography. These were combined with radiation regime, ambient air temperature, wind speed, and other relevant factors to obtain operative temperature. Upper critical temperatures were significantly related to operative temperature in the open (r2 = 0.65; p < 0.05). To assess the thermal cover value of different canopy closures, simultaneous operative-temperature values as a function of cano
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11

Morishige, M. "The thermal structure of subduction zones predicted by plate cooling models with variable thermal properties." Geophysical Journal International 229, no. 3 (2022): 1490–502. http://dx.doi.org/10.1093/gji/ggac008.

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SUMMARY Previous modelling studies have investigated the effects of experimentally constrained thermal properties (i.e. thermal conductivity, specific heat and the thermal expansion coefficient) on the thermal structure of subduction zones. However, these studies have not carefully considered whether the assumed thermal structure of the slab before subduction is consistent with geophysical observations. This study investigates the effects of thermal properties on the thermal structure of the Tohoku subduction zone, northeast Japan, by using the slab temperature at the trench determined from pl
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12

Hansen, Steffen F., Lotte B. Larsen, and Lars Wiking. "Thermal effects on IgM-milk fat globule-mediated agglutination." Journal of Dairy Research 86, no. 1 (2018): 108–13. http://dx.doi.org/10.1017/s0022029918000778.

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AbstractThe process of agglutination causes firm cream layers in bovine milk, and a functioning agglutination mechanism is paramount to the quality of non-homogenized milks. The phenomenon is not well-described, but it is believed to occur due to interactions between immunoglobulins (Ig) and milk fat globules. For the first time, this paper demonstrates how the process of agglutination can be visualized using confocal laser scanning microscopy, rhodamine red and a fluoresceinisothiocynat-conjugated immunoglobulin M antibody. The method was used to illustrate the effect on agglutination of stor
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13

Lee, Sang Yeop, Jae Young Kwon, Tae Woong Kang, Yeon Gil Jung, and Ung Yu Paik. "Effects of Thickness on Thermal and Mechanical Properties of Air-Plasma Sprayed Thermal Barrier Coatings." Materials Science Forum 658 (July 2010): 372–75. http://dx.doi.org/10.4028/www.scientific.net/msf.658.372.

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Thermal barrier coating systems (TBCs) prepared by an air-plasma spray (APS) have been used to protect metallic components of gas turbines because of its economic advantage. To enhance the energy efficiency of gas turbine systems, the operating temperature is increased to over 1300 °C, which requires a new material with low thermal conductivity and an increase of TBC thickness. In this study we have focused the microstructure related to the thickness of TBC and their thermal properties, with specific attention to defect species as well as to its morphology with the thermal exposure time. Resin
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14

Wen, Xin, Qi Meng, Da Yang, and Mengmeng Li. "Effects of thermal-acoustic interaction on comfort under office behaviors - taking air-conditioning noise as an example." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 8 (2023): 241–52. http://dx.doi.org/10.3397/in_2023_0052.

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Thermal-acoustic interaction holds significant importance in the development of subjective perception prediction models. While previous studies on this topic mainly focused on perceptual changes, the differences related to various office behaviors were not fully considered. This study aims to investigate the effects of thermal-acoustic interaction on comfort during different office behaviors (such as rest, reading, writing, and typing) using air-conditioning noise as an example in a laboratory setting. The results, obtained within the near thermal comfort zone, demonstrate that: (1) thermal se
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15

Gurung, D. B., K. C. Gokul, and P. R. Adhikary. "Mathematical model of thermal effects of blinking in human eye." International Journal of Biomathematics 09, no. 01 (2015): 1650006. http://dx.doi.org/10.1142/s1793524516500066.

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Blinking is regarded as the continuous interrupted eyelid closure or opening and its thermal effect will compromise between these two. During a blink, the heat loss via convection, radiation and tear evaporation from cornea is prevented, warm tear is layered across corneal surface and the vessels of the palpebral conjunctiva provide heat to anterior eye. In most of the thermal models in human eye that are found in literatures, effect of blinking is not included, simulation is carried out only in open eye. Thus, in this paper, thermal effects of blinking are investigated using one-dimensional f
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16

Huang, Yun, Weichen Sun, Hongyi You, and Kai Wu. "Influence of Temperature Effects on CPT in Granular Soils by Discrete Element Modeling in 3D." Geotechnics 3, no. 3 (2023): 624–37. http://dx.doi.org/10.3390/geotechnics3030034.

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This study employs a 3D discrete element method (DEM) to simulate cone penetration tests (CPTs) in granular soils, taking into account the effect of temperature. A coupled thermal mechanical model is developed to allow for heat transfer and storage in the granular materials. The CPT simulations are conducted on granular samples prepared at various temperatures, with the specific heat and velocity of thermal conductivity being identified as two critical factors that influence sample heating time. Additionally, the thermal expansion coefficient is a crucial parameter that is closely related to t
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17

Kozakiewicz, Paweł, Michał Drożdżek, Agnieszka Laskowska, et al. "Effects of thermal modification on selected physical properties of sapwood and heartwood of black poplar (Populus nigra L.)." BioResources 14, no. 4 (2019): 8391–404. http://dx.doi.org/10.15376/biores.14.4.8391-8404.

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Black poplar (Populus nigra L.) was subjected to thermal modification in superheated steam. The modification was performed at 160 °C, 190 °C, and 220 °C for 2 h. The equilibrium moisture content of the black poplar wood was examined when it was exposed to 76% ± 2% relative humidity at a temperature of 20 °C ± 2 °C. The thermal modification of the poplar wood changed its moisture-exchange-related physical properties to a large extent. The effects of temperature on individual properties (density, mass loss, hygroscopicity, swelling, and water absorption) were diverse, and the intensity of these
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18

Jin, Juxiang, Scott A. Wells, Defu Liu, et al. "Effects of water level fluctuation on thermal stratification in a typical tributary bay of Three Gorges Reservoir, China." PeerJ 7 (May 15, 2019): e6925. http://dx.doi.org/10.7717/peerj.6925.

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Xiangxi River is a typical tributary of Three Gorges Reservoir (TGR) in China. Based on field observations in 2010, thermal stratification was significant in most months of the year. Through field data analysis and numerical simulations, the seasonal and spatial variation of thermal stratification as related to the impact of the operation of TGR were investigated. Thermal stratification was most pronounced from April to September in the Xiangxi River tributary. Air temperature (AT) and water level (WL) were the two dominant variables impacting thermal stratification. AT affected the surface wa
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19

Yuan, Huang, and Jingyu Sun. "Thermal Gradient Mechanical Fatigue Assessment of a Nickel-Based Superalloy." MATEC Web of Conferences 300 (2019): 07004. http://dx.doi.org/10.1051/matecconf/201930007004.

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Turbine components generally work under thermomechanical loading conditions with varying temperature and significant temperature gradients. In the present work, a radiation heating system was developed to simulate thermal gradient mechanical fatigue (TGMF) loads in turbines. The specimen is externally heated by radiation and internally cooled by compressed air. Experiments showed that the TGMF life of the nickel-based superalloy is significantly shorter than that of the thermomechanical and the isothermal fatigue, although the thermal stress amplitude related to the temperature gradient is sma
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20

Gwak, Jongseong, Motoki Shino, Kazutaka Ueda, and Minoru Kamata. "An Investigation of the Effects of Changes in the Indoor Ambient Temperature on Arousal Level, Thermal Comfort, and Physiological Indices." Applied Sciences 9, no. 5 (2019): 899. http://dx.doi.org/10.3390/app9050899.

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Thermal factors not only affect the thermal comfort sensation of occupants, but also affect their arousal level, productivity, and health. Therefore, it is necessary to control thermal factors appropriately. In this study, we aim to design a thermal environment that improves both the arousal level and thermal comfort of the occupants. To this end, we investigated the relationships between the physiological indices, subjective evaluation values, and task performance under several conditions of changes in the indoor ambient temperature. In particular, we asked subjects to perform a mathematical
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21

Wang, Zheng, K. O. Suen, and Zidong Zhao. "An investigation into the influences of refrigerants’ thermal-physical properties on temperature separation effect of a vortex tube." Thermal Science, no. 00 (2022): 212. http://dx.doi.org/10.2298/tsci220926212w.

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The temperature separation effects of vortex tubes have been widely studied in open systems, using mainly air or N2as the working fluid. When a vortex tube is employed in a closed thermal system, more fluid choices, such as refrigerants, could be considered. Different to air, refrigerants have quite varied thermal-physical properties, and research of the thermal-physical properties? influence on the temperature separation effect is rather limited. Based on CFD simulated temperature separation effect of eight refrigerants (R152a, R290, R134a, R600a, R143a, R245fa, R227ea and R218), this study a
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22

Bača, Petr, Petr Vanýsek, Martin Langer, Jana Zimáková, and Ladislav Chladil. "Heat Effects during the Operation of Lead-Acid Batteries." Batteries 10, no. 5 (2024): 148. http://dx.doi.org/10.3390/batteries10050148.

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Thermal events in lead-acid batteries during their operation play an important role; they affect not only the reaction rate of ongoing electrochemical reactions, but also the rate of discharge and self-discharge, length of service life and, in critical cases, can even cause a fatal failure of the battery, known as “thermal runaway.” This contribution discusses the parameters affecting the thermal state of the lead-acid battery. It was found by calculations and measurements that there is a cooling component in the lead-acid battery system which is caused by the endothermic discharge reactions a
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23

Wang, Nan, and Julian Wang. "Simplified Model for Analyzing Shortwave Solar Effects on Indoor Thermal Comfort." Journal of Physics: Conference Series 2069, no. 1 (2021): 012158. http://dx.doi.org/10.1088/1742-6596/2069/1/012158.

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Abstract Shortwave solar irradiance through building windows may have significant impacts on indoor thermal comfort, especially in near-window zones. Such effects change with intensity and spectral variations of the solar irradiance incident on building windows, which is related to the day of the year, time of day, orientation and dimension of the window, and atmospheric conditions. To assess the effects on thermal comfort, we derived a variable - mean radiant temperature delta based on a proposed spectrally-resolved method to represent the quantity of shortwave solar irradiance incident on oc
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24

Zhao, Yaobing, Zhiqian Wang, Xiaoyu Zhang, and Lincong Chen. "Effects of Temperature Variation on Vibration of a Cable-Stayed Beam." International Journal of Structural Stability and Dynamics 17, no. 10 (2017): 1750123. http://dx.doi.org/10.1142/s0219455417501231.

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This paper is concerned with the temperature effect on the vibration of a cable-stayed beam. The thermal effect is considered by using two non-dimensional factors for the cable tension force and sag. The nonlinear in-plane and out-of-plane vibration equations of motion of the cable-stayed beam with thermal effect are derived by using the extended Hamilton’s principle. Eigenvalue analysis is performed to obtain closed-form eigenvalue solutions. It is shown that the effect of temperature variation plays a dominant role on the vibration behavior of the cable-stayed beam, and the effect is closely
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25

Munch, P. A. "Flow and thermal responses of aortic baroreceptors." Journal of Neurophysiology 70, no. 6 (1993): 2596–605. http://dx.doi.org/10.1152/jn.1993.70.6.2596.

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1. The aims of this study were 1) to determine whether the impulse activity in rabbit aortic baroreceptors (BRs) was influenced by changes in nonpulsatile flow through the aortic lumen and 2) to examine the BR and aortic arch responses to changes in temperature. 2. An in vitro aortic arch-aortic nerve preparation was used to record suprathreshold steady-state discharge in a total of 29 single-unit BRs from 12 New Zealand white rabbits. Changes in BR frequency were measured relative to control and were recorded simultaneously with aortic arch pressure, flow, temperature, diameter, and calculate
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26

Balamurugan, G. Prasath, Rohan N. Pukadyil, Mahdy M. Malayery, et al. "Thermal wrinkling behavior of formable decorative film laminates." Journal of Plastic Film & Sheeting 33, no. 3 (2016): 290–308. http://dx.doi.org/10.1177/8756087916663031.

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This paper focuses on wrinkle development in decorative film laminates during heating operations with the goal to understand their driving factors and develop strategies to overcome such defects. The study looked at temperature and heating rate effects on the wrinkling behavior of a commercial black-out film laminated onto a metal substrate. The 135℃ threshold temperature identified for our film under which no wrinkles formed, related to the stiffness of its different construction layers. Heating rate was also noted by this study to be an important parameter in wrinkling; values between 1℃ and
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27

Yin, Jiahao, Qiao Guan, Minyou Chen, Yanting Cao, Jun Zou, and Lingli Zhang. "Effects of Thermal Environment on Bone Microenvironment: A Narrative Review." International Journal of Molecular Sciences 26, no. 8 (2025): 3501. https://doi.org/10.3390/ijms26083501.

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Research findings reveal that thermal environments precisely regulate the skeletal system through a triple regulation of “structural morphology-cellular dynamics-molecular mechanisms”: At the tissue morphology level, moderate heat exposure can promote increased bone density and longitudinal growth, as well as improved fracture load and yield point, but may negatively affect geometric shape and cortical bone thickness. Continuous high-temperature exposure harms bone structure, manifested as changes in biomechanical characteristics such as decreased toughness and rigidity. At the cellular level,
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28

Rengifo Barbosa, Fernando, Rahman Miri, Mahmood Salimi, and Alireza Nouri. "Thermal Effects on Fines Migration: Insights from Sand Pack Experiments." Energies 18, no. 13 (2025): 3471. https://doi.org/10.3390/en18133471.

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Mobilisation of in situ fine particles within oil sands reservoirs plays a critical role in permeability reduction and pore throat blockage, ultimately impairing reservoir performance and diminishing well productivity during thermal recovery operations. Variations in reservoir fluid conditions, such as changes in salinity and temperature, trigger the detachment, transport, and redeposition of fines within porous media. This study introduces a novel high-pressure high-temperature (HP-HT) sand retention testing (SRT) facility designed for evaluating formation damage by fines migration in SAGD pr
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Soong, C. Y. "Thermal Buoyancy Effects in Rotating Non-Isothermal Flows." International Journal of Rotating Machinery 7, no. 6 (2001): 435–46. http://dx.doi.org/10.1155/s1023621x01000380.

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The present paper is concerned with the non-isothermal flow mechanisms in rotating systems with emphasis on the rotation-induced thermal buoyancy effects stemming from the coexistence of rotational body forces and the nonuniformity of the fluid temperature field. Non-isothermal flow in rotating ducts of radial and parallel modes and rotating cylindrical configurations, including rotating cylinders and disk systems, are considered. Previous investigations closely related to the rotational buoyancy are surveyed. The mechanisms of the rotation-induced buoyancy are manifested by the author's recen
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Kovačević, D., K. Mastanjević, and J. Kordić. "Cryoprotective effect of polydextrose on chicken surimi." Czech Journal of Food Sciences 29, No. 3 (2011): 226–31. http://dx.doi.org/10.17221/201/2008-cjfs.

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Two thermal analysis techniques – Differential scanning calorimetry (DSC) and Differential thermal analysis (DTA), – were used to study the cryoprotective effects of polydextrose on chicken surimi. The samples of chicken surimi were mixed with: (a) different mass fractions of polydextrose (w = 2–10%), (b) κ-carrageenan (w = 0.5%) and different mass fractions of polydextrose (w = 2–10%), and (c) NaCl (w = 2%) and different mass fractions of polydextrose (w = 2–10%). Chicken surimi was produced following a modified procedure of Dawson e
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31

Rebetzke, G. J., and R. J. Lawn. "Adaptive responses of wild mungbean (Vigna radiata ssp. sublobata) to photo-thermal environment. II. Growth, biomass, and seed yield." Australian Journal of Agricultural Research 57, no. 8 (2006): 929. http://dx.doi.org/10.1071/ar05377.

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The leaf growth, dry matter production, and seed yield of 11 wild mungbean (Vigna radiata ssp. sublobata) accessions of diverse geographic origin were observed under natural and artificial photoperiod–temperature conditions, to determine the extent to which genotypic differences could be attributed to adaptive responses to photo-thermal environment. Environments included serial sowings in the field in SE Queensland, complemented by artificial photoperiod extension and controlled-environment growth rooms. Photo-thermal environment influenced leaf growth, total dry matter production (TDM), and s
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Li, Jin Mei, Jia Qing Zhang, Qiang Li, and Zi Dong Guo. "Thermal Aging Effects on Fire Performance of the Cross-Linked Polyethylene Insulated Cable." Materials Science Forum 898 (June 2017): 2399–404. http://dx.doi.org/10.4028/www.scientific.net/msf.898.2399.

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To evaluate the fire performance of the cable in service, the ignition time, heat release rate and insulation failure parameters of the accelerated thermal aging cable on stimulated fire condition were studied. The results show that, the extended ignition time and decreasing peak of heat release rate of the cable in the early stage of aging are the addictive including the lubricant, plasticizer and anti-oxygen. In the aggravating of thermal aging, labile materials with low heating value will be exhausted, while the thermal stability of insulation sheath material decreases, its corresponding ig
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Sahu, Digbash, and Rudra Kanta Deka. "Thermal and Mass Stratification Effects on MHD Flow Past an Accelerated Vertical Plate with Variable Temperature and Exponential Mass Diffusion Embedded in a Porous Medium." East European Journal of Physics, no. 2 (June 1, 2024): 161–71. http://dx.doi.org/10.26565/2312-4334-2024-2-15.

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This study looks at how the impacts of thermal and mass stratification on magnetohydrodynamic (MHD) flow alongside a vertically accelerating plate featuring variable temperature and exponential mass diffusion within a porous medium. The Laplace transform technique is utilized to solve the governing equations related to flow, energy, and mass diffusion. Subsequently, the impact of stratification on the flow field, temperature, and mass diffusion is examined. The study indicates that thermal and mass stratification significantly affects the profiles of velocity, temperature, and mass diffusion.
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Wang, Xianglin, Qian Yang, Yingni Zhai, Haobo Niu, and Xinta Wang. "Effects of Vehicle Air Temperature on Drivers’ Cognitive Abilities Based on EEG." Sustainability 15, no. 2 (2023): 1673. http://dx.doi.org/10.3390/su15021673.

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Vehicle air temperature affects drivers’ physiology, psychology, and cognitive abilities. However, the effects are difficult to quantify, especially for jobs related to driving tasks. In this research, 10 male subjects were directly exposed to four different vehicle air temperatures of 20, 23, 26, and 30 °C for 160 min. They were asked to perform cognitive tasks and subjective questionnaires, and 16 channels of EEG signals were monitored in a vehicle cabin. Based on the assessment of the EEG characteristics, the impacts of vehicle air temperature on cognitive abilities and EEG were investigate
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35

Sharma, Meenakshi, Manju Singh, Rajib K. Rakshit, et al. "Complex Phase-Fluctuation Effects Correlated with Granularity in Superconducting NbN Nanofilms." Nanomaterials 12, no. 23 (2022): 4109. http://dx.doi.org/10.3390/nano12234109.

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Superconducting nanofilms are tunable systems that can host a 3D–2D dimensional crossover leading to the Berezinskii–Kosterlitz–Thouless (BKT) superconducting transition approaching the 2D regime. Reducing the dimensionality further, from 2D to quasi-1D superconducting nanostructures with disorder, can generate quantum and thermal phase slips (PS) of the order parameter. Both BKT and PS are complex phase-fluctuation phenomena of difficult experiments. We characterized superconducting NbN nanofilms thinner than 15 nm, on different substrates, by temperature-dependent resistivity and current–vol
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36

Zhu, Wenliang, Shizuka Nakashima, Elia Marin, Hui Gu, and Giuseppe Pezzotti. "Annealing-Induced Off-Stoichiometric and Structural Alterations in Ca2+- and Y3+-Stabilized Zirconia Ceramics." Materials 14, no. 19 (2021): 5555. http://dx.doi.org/10.3390/ma14195555.

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In the current study, high-temperature stability was investigated in two types of zirconia ceramics stabilized with two different additives, namely, calcia and yttria. The evolutions of structure and oxygen-vacancy-related defects upon annealing in air were investigated as a function of temperature by combining X-ray diffractometry with Raman, X-ray photoelectron and cathodoluminescence spectroscopies. We systematically characterized variations in the concentration of oxygen vacancies and hydroxyl groups during thermal treatments and linked them to structural alterations and polymorphic transf
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Warren, Donald T., and Mark I. McCormick. "Intrageneric differences in the effects of acute temperature exposure on competitive behaviour of damselfishes." PeerJ 7 (July 17, 2019): e7320. http://dx.doi.org/10.7717/peerj.7320.

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Projected increases in global temperatures brought on by climate change threaten to disrupt many biological and ecological processes. Tropical ectotherms, like many fishes, can be particularly susceptible to temperature change as they occupy environments with narrow thermal fluctuations. While climate change models predict temperatures to increase over decades, thermal fluctuations are already experienced on a seasonal scale, which may affect the ability to capture and defend resources across a thermal gradient. For coral reef fish, losers of competitive interactions are often more vulnerable
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38

Yang, Tianqi, Jin Li, Qianqian Xin, et al. "Thermal Performance Analysis of a Prismatic Lithium-Ion Battery Module under Overheating Conditions." Batteries 10, no. 3 (2024): 86. http://dx.doi.org/10.3390/batteries10030086.

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Thermal runaway (TR) of lithium-ion batteries has always been a topic of concern, and the safety of batteries is closely related to the operating temperature. An overheated battery can significantly impact the surrounding batteries, increasing the risk of fire and explosion. To improve the safety of battery modules and prevent TR, we focus on the characteristics of temperature distribution and thermal spread of battery modules under overheating conditions. The heat transfer characteristics of battery modules under different battery thermal management systems (BTMSs) are assessed. In addition,
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39

Lau, Rita. "Sensitivity studies on the thermal beta+ decay and thermal neutrino decay rates in the one-zone X-ray burst model." Monthly Notices of the Royal Astronomical Society 498, no. 2 (2020): 2697–702. http://dx.doi.org/10.1093/mnras/staa2484.

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ABSTRACT We investigated how the thermal beta+ decay rates and their corresponding neutrino energy loss rates affect the properties of X-ray bursts. Previous studies carried out showed how the beta+ decay rates alone affect the properties of X-ray bursts. Here, we performed the sensitivity studies on neutrino energy loss rates and their impact on X-ray bursts. Furthermore, all the experimental beta+ decay rates related to X-ray bursts were measured. However, the temperature of X-ray bursts can be as high as 1.5 GK. Thus, at such a high temperature, the nuclei can be in excited states due to th
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40

Khaled, A. R. A., and K. Vafai. "Cooling Enhancements in Thin Films Supported by Flexible Complex Seals in the Presence of Ultrafine Suspensions." Journal of Heat Transfer 125, no. 5 (2003): 916–25. http://dx.doi.org/10.1115/1.1597612.

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Flow and heat transfer inside thin films supported by flexible soft seals having voids of a stagnant fluid possessing a large coefficient of volumetric thermal expansion βT are studied in the presence of suspended ultrafine particles. The study is conducted under periodically varying thermal load conditions. The governing continuity, momentum and energy equations are non-dimensionalized and reduced to simpler forms. The deformation of the seal is related to the internal pressure and lower plate’s temperature based on the theory of linear elasticity and a linearized model for thermal expansion.
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41

Li, Juan, Wentao Jiang, Chunlin Xia, Yuting Deng, Yue Gao, and Changyi Yang. "Microstructural Evolution and Subsequent Mechanical Properties of Ti65 Titanium Alloy during Long-Term Thermal Exposure." Metals 14, no. 8 (2024): 854. http://dx.doi.org/10.3390/met14080854.

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The microstructural stability and property evolution of high-temperature titanium alloys under long-term high-temperature conditions has been a critical scientific issue in the field of advanced titanium alloys. In this work, we systematically investigated the precipitation behavior of silicides and ordered α2 phase, which are closely related to the microstructural stability of Ti65 high-temperature alloy, during thermal exposure at 650 °C for different periods of time. Furthermore, the effects of thermal exposure on mechanical properties were evaluated using room temperature and high temperat
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42

Boregowda, Satish C., Robert E. Choate, and Rodney Handy. "Entropy Generation Analysis of Human Thermal Stress Responses." ISRN Thermodynamics 2012 (December 13, 2012): 1–11. http://dx.doi.org/10.5402/2012/830103.

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The present study involves application of an open system entropy generation formulation to analyze human thermal stress responses. The time-series human thermal stress response data are obtained by conducting a simulation using a validated finite-element human thermal model (FEHTM). These simulated human thermal response data are used as an input to the entropy generation expression to obtain human entropy generation (HEG) values. The effects of variables such as air temperature, relative humidity, physical activity, and clothing on entropy generation are examined. A design of experiment (DOE)
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43

Migliore, Francesca, Marco Cannas, Franco Mario Gelardi, et al. "Effects of High-Temperature Treatments in Inert Atmosphere on 4H-SiC Substrates and Epitaxial Layers." Materials 17, no. 23 (2024): 5761. http://dx.doi.org/10.3390/ma17235761.

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Silicon carbide is a wide-bandgap semiconductor useful in a new class of power devices in the emerging area of high-temperature and high-voltage electronics. The diffusion of SiC devices is strictly related to the growth of high-quality substrates and epitaxial layers involving high-temperature treatment processing. In this work, we studied the thermal stability of substrates of 4H-SiC in an inert atmosphere in the range 1600–2000 °C. Micro-Raman spectroscopy characterization revealed that the thermal treatments induced inhomogeneity in the wafer surface related to a graphitization process sta
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44

Park, Hyunwoo. "Thermal Behavior in the Inclined Space Connected to Fire Room." Journal of the Korean Society of Hazard Mitigation 22, no. 5 (2022): 185–91. http://dx.doi.org/10.9798/kosham.2022.22.5.185.

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In this study, a model experiment was conducted to understand the effects of the parameters of the inclined space (cross-sectional aspect ratio and angle of incline) connected to the fire room on the hot gas flow in it. The trend of dimensionless temperature (<i>T*</i>) decrease in the vertical direction of hot gas flow in the inclined space was found to not be related to the width of inclined space in the range of <i>T*</i> > 0.3. Additionally, the trend of temperature decrease in the direction of hot gas flow in the inclined space was found to not be related to the
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45

Rahmadyani, H., and M. Fahri. "A study of the microclimate effects on thermal comfort in warm-humid climate for urban parks, Pangkalpinang." IOP Conference Series: Earth and Environmental Science 1267, no. 1 (2023): 012075. http://dx.doi.org/10.1088/1755-1315/1267/1/012075.

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Abstract Nowadays, Urbanization is increasing rapidly in downtown. The increasing phenomenon of urbanization undoubtedly requires special attention, as it significantly influences numerous public health challenges and environmental problems, including the urban heat island effect, flooding, and pollution. Efficient urban planning strategies are vital for mitigating the detrimental effects on the climate, while simultaneously improving the overall quality of life and public health in urban areas. However, the effect of microclimate on urban parks in Pangkalpinang related to thermal comfort has
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46

Li, Xiaojiang, Gensheng Li, Wei Yu, et al. "Thermal Effects of Liquid/Supercritical Carbon Dioxide Arising From Fluid Expansion in Fracturing." SPE Journal 23, no. 06 (2018): 2026–40. http://dx.doi.org/10.2118/191357-pa.

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Summary Liquid/supercritical carbon dioxide (L/SC-CO2) fracturing is an emerging technology for shale gas development because it can effectively overcome problems related to clay swelling and water scarcity. Recent applications show that L/SC-CO2 fracturing can induce variations in temperature. Understanding of this phenomenon is rudimentary and needs to be carefully addressed to improve the understanding of CO2 thermodynamic behavior, and thus helps to optimize CO2 fracturing in the field. In this paper, we develop a numerical model to assess the impact of thermal effect on fracture initiatio
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Deschamps, Frédéric, and Wen-Pin Hsieh. "Lowermost mantle thermal conductivity constrained from experimental data and tomographic models." Geophysical Journal International 219, Supplement_1 (2019): S115—S136. http://dx.doi.org/10.1093/gji/ggz231.

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SUMMARY Heat transfer through Earth's mantle is sensitive to mantle thermal conductivity and its variations. Thermal conductivities of lower mantle minerals, bridgmanite (Bm) and ferropericlase (Fp), depend on pressure, temperature, and composition. Because temperature and composition are expected to strongly vary in the deep mantle, thermal conductivity may also vary laterally. Here, we compile self-consistent data on lattice thermal conductivities of Bm and Fp at high pressure to model lower mantle thermal conductivity and map its possible lateral variations. Importantly, our data set allows
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48

Sydnes, Magnhild, Willy Fjeldskaar, Ivar Grunnaleite, Ingrid Fjeldskaar Løtveit, and Rolf Mjelde. "Transient Thermal Effects in Sedimentary Basins with Normal Faults and Magmatic Sill Intrusions—A Sensitivity Study." Geosciences 9, no. 4 (2019): 160. http://dx.doi.org/10.3390/geosciences9040160.

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Magmatic intrusions affect the basin temperature in their vicinity. Faulting and physical properties of the basin may influence the magnitudes of their thermal effects and the potential source rock maturation. We present results from a sensitivity study of the most important factors affecting the thermal history in structurally complex sedimentary basins with magmatic sill intrusions. These factors are related to faulting, physical properties, and restoration methods: (1) fault displacement, (2) time span of faulting and deposition, (3) fault angle, (4) thermal conductivity and specific heat c
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49

Cui, Xiao, and Boqi Jia. "Thermal Effect on the Instability of Annular Liquid Jet." Aerospace 8, no. 12 (2021): 382. http://dx.doi.org/10.3390/aerospace8120382.

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The linear instability of an annular liquid jet with a radial temperature gradient in an inviscid gas steam is investigated theoretically. A physical model of an annular liquid jet with a radial temperature gradient is established, dimensionless governing equations and boundary conditions are given, and numerical solutions are obtained using the spectral collocation method. The correctness of the results is verified to a certain extent. The liquid surface tension coefficient is assumed to be a linear function of temperature. The effects of various dimensionless parameters (including the Marang
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Oanh, Dinh Quynh, Takashi Gomi, R. Dan Moore, et al. "Stream Temperature Response to 50% Strip-Thinning in a Temperate Forested Headwater Catchment." Water 13, no. 8 (2021): 1022. http://dx.doi.org/10.3390/w13081022.

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Stream temperature is a critical parameter for understanding hydrological and biological processes in stream ecosystems. Although a large body of research has addressed the effects of forest harvesting on stream temperature, less is known about the responses of stream temperature to the practice of strip-thinning, which produces more coherent patches of shade and sunlight areas. In this study, we examined stream temperature response to 50% strip-thinning in a 17 ha headwater catchment. The thinning lines extended through the riparian zone. Paired-catchment analysis was applied to estimate chan
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