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461
A Temperature Rise Calculation Method of Gear Transmission Considering Variation of Physical Parameter with Temperature
Published 2019-07-01“…Based on involute spur gear, according to gear meshing theory and friction heat transfer principle, the instantaneous friction heat flow and convection heat transfer coefficient in the transmission process of gear are calculated and solved. …”
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462
Observations of the Electromagnetic Electron Kelvin‐Helmholtz Instability and Its Impact on the Dynamics Inside a Flux Rope
Published 2025-01-01“…Abstract The electromagnetic electron Kelvin‐Helmholtz instability (EM EKHI) and its impact on the dynamics inside a flux rope (FR) is investigated through observations from the Magnetospheric Multiscale mission. The convection term dominated electric field drives E × B drift in the FR, which supports a strong electron shear flow. …”
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463
Analyzing Thermal Module Developments and Trends in High-Power LED
Published 2014-01-01“…This study utilizes thermal performance experiments with the illumination-analysis method and window program (vapour chamber thermal module, VCTM V1.0) to investigate and analyze the high-power LED (Hi-LED) lighting thermal module, in order to achieve the best solution of the fin parameters under the natural convection. The computing core of the VCTM program employs the theoretical thermal resistance analytical approach with iterative convergence stated in this study to obtain a numerical solution. …”
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464
Similarity Solutions for Flow and Heat Transfer of Non-Newtonian Fluid over a Stretching Surface
Published 2014-01-01“…Similarity solutions are carried out for flow of power law non-Newtonian fluid film on unsteady stretching surface subjected to constant heat flux. Free convection heat transfer induces thermal boundary layer within a semi-infinite layer of Boussinesq fluid. …”
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465
Comparative analysis of solar panel output power with variations of Heatsink type cooling systems
Published 2023-12-01“…The heat transfer that occurs in this experiment is by conduction and convection. The heatsink's good performance in releasing heat with high power output can be seen at 12.25 because the resulting thermal efficiency is related to the power released at the same time. …”
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466
The Toulouse–Kleman homotopic classification of topological defects in ordered systems illustrated by experiments
Published 2024-12-01“…We deal first with dislocations in a dissipative periodic pattern of convection rolls in a shear flow instability in nematics. …”
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467
TWSME of a NiTi strip in free bending conditions: experimental and theoretical approach
Published 2014-07-01“…Heating to Af was reached by a hot air stream flow whereas cooling to Mf was achieved through natural convection. The evolution of the curvature with the increasing number of cycles was evaluated. …”
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468
Numerical simulation of subsurface defect identification by pulsed thermography and improvement of this technique for noisy data
Published 2019-09-01“…The simulation has been carried out on the base of the model which takes into account complex heat exchange of the sample with the surrounding by convection, conduction and radiation. Comparison of the temperature contrast with the experimental data has shown that the results are in a good qualitative and quantitative agreement in all stages of the cooling process. …”
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469
RESEARCH ON ACCURATE MODELING OF HYDROSTATIC MOTORIZED SPINDLE BASED ON RESPONSE SURFACE OPTIMIZATION ALGORITHM
Published 2022-01-01“…The mathematical models of air gap heat transfer coefficient between stator and rotor, forced convection heat transfer coefficient of spindle inner hole and temperature are established, which is also called the mathematical model of temperature field. …”
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470
Study on the Distribution of Cycloidal Gear Forming Grinding Temperature Field
Published 2018-01-01“…The heat distribution ratio and convection heat dissipation coefficient of the grinding process are calculated by using the theoretical analysis,and the temperature field distribution of the tooth surface under wet grinding is simulated by means of finite element method and computer simulation software. …”
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471
Effect of Drying Whole and Half Chili Pods Using a Solar Dryer with CaCl2 Desiccant on Quality of Powder Chili
Published 2021-01-01“…This study investigated the quality of dried whole and half chili pods’ powder dried with solar drying combined with CaCl2 desiccant compared with natural convection solar drying to produce the final chili powder product. …”
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472
Laminar Wall Jet Flow and Heat Transfer over a Shallow Cavity
Published 2015-01-01“…When Re increases, the maximum temperature contour distributions take place in shallow cavity region and highest convection heat transfer is obtained in heated walls. …”
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473
The liquid-vapor water generation characteristics of thermo-responsive polymer based on the multi-scale method
Published 2025-01-01“…About 80% of the purified liquid water can be collected directly in closed environment, while the amount decreased to 21%–25% in air convection condition. The results suggested a heating method for improving liquid water collection rate with low energy cost for practical applications.…”
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474
Severe Weather Caused by Heat Island and Sea Breeze Effects in the Metropolitan Area of São Paulo, Brazil
Published 2016-01-01“…This research work aims to characterize MASP heat island (HI) effect and its interaction with the local sea breeze (SB) inflow in rainfall amounts and deep convection. The combined SB-HI produces direct circulation over the MASP and produces severe weather and socioeconomic impacts. …”
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475
Experimental Research of Dynamic Instabilities in the Presence of Coiled Wire Inserts on Two-Phase Flow
Published 2013-01-01“…The aim of this study is to experimentally investigate the effect of the coiled wire insertions on dynamic instabilities and to compare the results with the smooth tube for forced convection boiling. The experiments were conducted in a circular tube, and water was used as the working fluid. …”
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476
STUDY ON STEADY-STATE TEMPERATURE FIELD OF THE MESHING PAIR OF TWO-TOOTH DIFFERENCE SWING-ROD MOVABLE TOOTH DRIVE
Published 2018-01-01“…Based on the basic theory of heat transfer and tribology,the calculation formulas of the friction heat flux density of meshing pair,the meshing tooth surface and the end face convective heat transfer coefficient with two-tooth difference swing-rod movable tooth drive are derived under the slip condition.A finite element model of the thermal analysis of the gear meshing pair is established,and the steady-state temperature field of the meshing pair under thermal balance state is calculated and analyzed by using the ANSYS finite element software.Combined with numerical simulation results,the influence of tooth profile design parameters on the temperature field is revealed.The result shows that:the steady-state temperature field of the meshing pair is determined collectively by the heat flux of the contact zone and the convection heat transfer coefficient of each surface.Because the temperature rise of sliding friction is larger,the maximum temperature appears in the center of the gear meshing face width of the center,the radius of the base circle radius has a great influence on the body temperature of the meshing surface,and the swing rod length is less affected.The research results lay the foundation for the study of the thermal deformation and thermal mechanical coupling characteristics of the meshing pair,so as to guide the dynamic design of the two-tooth difference swing-rod movable tooth drive.…”
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477
Quantifying Contributions of External Drivers to the Global Ionospheric State
Published 2021-09-01“…The solar EUV irradiance and tropospheric deep convection are secondary drivers with comparable contributions at about half of the contribution from migrating tidal sources. …”
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478
Accelerated Permafrost Thaw Linked to Rising River Temperature and Widening Channels
Published 2025-01-01“…River temperature of a representative section (Tuotuohe River) on the central Tibetan Plateau, has increased notably (0.39°C/decade) from 1985 to 2017, facilitating heat transfer into the underlying permafrost via both convection and conduction. Consequently, the permafrost beneath rivers warms faster (0.37°C–0.66°C/decade) and has a ∼0.5 m thicker active layer than non‐inundated permafrost (0.17°C–0.49°C/decade). …”
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479
LOCAL VALUES OF HEAT TRANSFER PARAMETERS ON THE INTERIOR SURFACES OF THE BUILDING ENVELOPE
Published 2016-02-01“…The analysis was based on the distributions of surface temperature, convective heat-transfer coefficient, convective heat flux and radiative heat flux. …”
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480
Impact of land use changes and global warming on extreme precipitation patterns in the Maritime Continent
Published 2025-01-01“…We find that LUC-induced deforestation increases surface warming, enhancing atmospheric instability and favoring local convection, leading to more frequent heavy precipitation. …”
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