Showing 2,921 - 2,940 results of 14,821 for search '"temperature"', query time: 0.07s Refine Results
  1. 2921

    Late-Age Properties of Concrete with Different Binders Cured under 45°C at Early Ages by Hu Jin

    Published 2017-01-01
    “…It is commonly accepted that high curing temperature (near 60°C or above) results in reduced mechanical properties and durability of concrete compared to normal curing temperature. …”
    Get full text
    Article
  2. 2922

    Dissipation of Magnetohydrodynamic Waves in the Solar Stratified Flux Tubes by Zahra Fazel

    Published 2023-12-01
    “…The increase of the temperature and the decrease of the density are observed in this layer. …”
    Get full text
    Article
  3. 2923

    Density-functional theory formulated in terms of functional integrals by Gérald Faussurier

    Published 2025-01-01
    “…It was valid at zero and finite temperature. It was possible to derive the Hohenberg and Kohn formulation at zero temperature and the Mermin formulation at finite temperature of the density functional theory, which states that the energy or the grand potential are functionals of the true density of the system considered. …”
    Get full text
    Article
  4. 2924

    Analysis of the Composite Transmission of Magnetorheological Fluids and Shape Memory Alloy by Chen Song, Jian Kailin, Huang Jin, Huang Xia

    Published 2015-01-01
    “…The magnetorheological effect of magnetorheological fluid reduce under a high temperature condition,which causes so many problems like the uncontrollability of the variation of shearing stress,and even failure of the transmission device.Based on the rheological property of magnetorheological fluid and the temperature characteristics of shape memory alloy,a composite transmission device of magnetorheological fluid and shape memory alloy is designed,which rely on magnetorheological fluid to transfer torque under a lower temperatures condition,shape memory alloy spring assisted power transmission when the magnetorheological performance reduce under a high temperature condition.The performance of drive force transmission device is analyzed,and the formula of power transmission of transmission device is derived.The study results show that the composite transmission device can work at the external magnetic field and the temperature control,the torque can maintain continuous,controllable under a high temperature condition,the stability and efficiency of transmission device are improved.…”
    Get full text
    Article
  5. 2925

    Evolution of Dry/Wet Climate in Xichang from 1961 to 2016 by XIAO Xiwen, ZHANG Yunlu, LIU Chunhong, WANG Yuefeng

    Published 2022-01-01
    “…Regional climate analysis can optimize and supplement global climate research,and it is of vital significance for predicting regional climate changes and extreme weather.Based on the daily temperature and precipitation data from 1961 to 2016 in Xichang city,this paper systematically reveals the characteristics of temperature,precipitation,and dry and wet climate changes at annual and inter-annual scales by using the cumulative anomaly method,nonparametric trend analysis of time series (innovative trend analysis (ITA) method and ITA-change boxes (ITA-CB) method) and standardized precipitation evaporation index (SPEI).The results show that:① The distribution characteristics of annual temperature and precipitation in Xichang are similar,with the maximum value of both appearing in July.Moreover,the minimum temperature and precipitation appear in January and February,respectively.The average inter-annual and inter-decadal temperatures increase obviously,and the average inter-decadal precipitation improves slowly.② For the past 56 years,Xichang has witnessed apparent dry and wet climate changes.SPEI has dropped in a fluctuating tendency.In addition,it is negatively correlated with temperature (p<0.05) but positively correlated with precipitation (p<0.01).As temperature increases significantly,the drought degree has become more and more serious since 2003,and the negative value of SPEI accounts for 78.6%.The proportion of drought to extreme drought has increased to 28.6% in 2010.③ The average annual precipitation increases in low-value regions but decreases in high-value regions.The average annual temperature rises both in low-value regions and high-value regions and basically maintains an increasing tendency in median regions.SPEI increases in low-value regions but decreases in median and high-value regions.The research results can provide a reference for Xichang in dealing with climate change and formulating disaster prevention and mitigation plans.…”
    Get full text
    Article
  6. 2926

    Magnetic Resonance Thermometry of Focused Ultrasound Using a Preclinical Focused Ultrasound Robotic System at 3T by Antria Filippou, Nikolas Evripidou, Andreas Georgiou, Leonidas Georgiou, Antreas Chrysanthou, Cleanthis Ioannides, Christakis Damianou

    Published 2024-12-01
    “…At 3T, temperature changes between 41°C and 50°C were recorded for the three phantoms produced with varied silica and evaporated milk, with the addition of 2% w/v silica resulting in a 20% increase in temperature change. …”
    Get full text
    Article
  7. 2927

    CONTACT STRENGTH ANALYSIS OF FINGER SEAL CONSIDERING THERMAL EFFECT by ZHANG YanChao, JIAO Dandan, WU LuJi, ZHAO Rui, CUI YaHui, RAN BaoChun, WANG Wei

    Published 2019-01-01
    “…However,Under high-speed and high temperature conditions, friction heat and ambient temperature have a significant impact on contact strength and sealing performance of the finger seal. …”
    Get full text
    Article
  8. 2928

    Investigating the distribution of heat transfer in a thick-walled functionally graded cylindrical shell under heat flux by Buqing Zhang, Zhiqiang Long, Guoqing Liu, Zhengxin Wu, Qiang Yan

    Published 2025-01-01
    “…By contrast, the ceramic shell thermal insulation reduces the outer wall temperature by 85%: the inner surface temperature is 149 °C and the outer surface 28 °C. …”
    Get full text
    Article
  9. 2929

    Forest plantations influence on the thermophysical properties of southern chernozems by V. A. Gorban, N. A. Bilova

    Published 2024-07-01
    “…It was established that the growth of forest plantations led to a decrease in the surface temperature, the temperature at a depth of 50 cm, and the average temperature of the 0–50 cm layer of southern chernozems compared to zonal southern chernozems. …”
    Get full text
    Article
  10. 2930

    Quality Improvement of Polycarbonate Medical Device by Moldex3D and Taguchi DOE by Upoma Saha, Wael Mokhtar

    Published 2025-01-01
    “…Process parameters like melt temperature, injection speed, coolant temperature, and packing pressure were considered to address those defects. …”
    Get full text
    Article
  11. 2931

    RESEARCH ON MULTI-FIELD COUPLING CHARACTERISTICS OF FLUID, THERMAL AND SOLID IN ROTARY EXCITATION VALVE (MT) by LU ShengDong, WANG SiHan, ZHAO ZiYan, ZHAO GuoChao, WANG Hui

    Published 2023-01-01
    “…The temperature of fluid near the valve core and the wall of valve body is higher, and the center temperature is lower.Due to the impact of the fluid at the outlet of rotary excitation valve, a local high temperature will be generated, resulting in thermal deformation of the valve core groove and the valve body outlet port.When the pressure difference between inlet and outlet at 15 MPa, the thermal deformation is 3.789 4 μm, and the oil inlet temperature at 60℃, the thermal deformation is 7.701 7 μm. …”
    Get full text
    Article
  12. 2932

    Clinical utility of smartphone-based digital infrared thermal imaging in predicting vascular compromise in free flaps by Padmalakshmi Bharathi Mohan, S. Dineshkumar, Devi Prasad Mohapatra, Prasanth Penumadu, M.T. Friji, Ravi Kumar Chittoria

    Published 2024-01-01
    “…This is useful in assessing temperature difference between two surfaces, as well as variation of temperature. …”
    Get full text
    Article
  13. 2933

    Laboratory Study on Properties of Diatomite and Basalt Fiber Compound Modified Asphalt Mastic by Yongchun Cheng, Chunfeng Zhu, Guojin Tan, Zehua Lv, Jinsheng Yang, Jiansheng Ma

    Published 2017-01-01
    “…In summary, the high temperature and low temperature properties of DBFCMAM had been improved.…”
    Get full text
    Article
  14. 2934

    Experimental and Numerical Study of the Interfacial Shear Strength in Carbon Fiber/Epoxy Resin Composite under Thermal Loads by Hongxiao Wang, Xiaohui Zhang, Yugang Duan, Lingjie Meng

    Published 2018-01-01
    “…To evaluate the change in IFSS as a function of the increase in temperature, a microbond test was performed under controlled temperature environment from 23°C to 150°C. …”
    Get full text
    Article
  15. 2935

    Correlation analysis between micro and macro indicators of high modulus modified asphalt for asphalt pavement. by Jiarong Wang, Zhengqi Zhang, Zhongnan Tian

    Published 2025-01-01
    “…Secondly, Molecular models of two kinds of HMA were established through molecular dynamics (MD) simulations, and the high temperature parameters of LLDPE/SBS composite modified asphalt were obtained with the two methods, namely the micro molecular dynamics simulation and high temperature rheological test, respectively. …”
    Get full text
    Article
  16. 2936

    A Gas Sensor Design and Heat Transfer Simulation with ZnO and TiO2 Sensing Layers by Gözde Konuk Ege, Hüseyin Yüce, Garip Genç

    Published 2021-06-01
    “…It is compatible with the literature. The temperature on the ZnO surface increases to three times the TiO2 surface temperature. …”
    Get full text
    Article
  17. 2937

    Physical Properties, Chemical Structure, and Microstructure of Thermoplastic Polyurethane Recycled Material-Modified Asphalt by Peng Yang, Peiliang Cong, Hongjie Hao, Pengfei Xiong

    Published 2025-01-01
    “…The results show that the TPRM particles improved its high-temperature performance, low-temperature crack resistance, and shear behavior due to its increased cohesion and low-temperature fracture energy levels. …”
    Get full text
    Article
  18. 2938

    Study on Spatio-temporal Variation Characteristics of Hydro-meteorological Factors in the Source Region of Yellow River by WANG Dong, WU Dongdong, JIE Xiaobai, LI Xuehui

    Published 2020-01-01
    “…The results show that; for the annual precipitation,its rising trend isinsignificant, without significant mutation and with significant periodicity of 30 years;for theannual average temperature,its increasing trend is significant, with strong mutations around 1997and without significant periodicity;for the annual runoff,its decreasing trend is significant,with strong mutations around 1989 and significant periodicity of 30 years; the spatialdistribution difference of annual precipitation and average temperature are significant, withdecreasing trend for spatial distribution difference of annual precipitation and with obviousvariation trend for that of annual average temperature; before 2000, the spatial distributiondifference of annual average temperature was obvious, but that was even after 2000. …”
    Get full text
    Article
  19. 2939

    Analysis of the Thermal Characteristics of Surrounding Rock in Deep Underground Space by Liu Chen, Jiangbo Li, Fei Han, Yu Zhang, Lang Liu, Bo Zhang

    Published 2019-01-01
    “…The results indicate that the surrounding rock temperature decreases with long heat transfer times, high airflow velocities, and low air temperatures.…”
    Get full text
    Article
  20. 2940

    Catalytic Chemical Vapor Deposition of Methane to Carbon Nanotubes: Copper Promoted Effect of Ni/MgO Catalysts by Wen Yang, Yanyan Feng, Wei Chu

    Published 2014-01-01
    “…The effect of Cu on the carbon yield and structure was investigated, and the effects of calcination temperature and reaction temperature were also investigated. …”
    Get full text
    Article