Results 211 to 220 of about 501,521 (263)
Analyzing the geometric dependence of thermoelastic Q-factor in micro hemispherical resonators via a data-augmented CNN-transformer model. [PDF]
Microsyst NanoengYao Y, Yang G, Cheng R, Li W, Liu X.
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Uncertainty in sap flow of Brazilian mahogany determined by the heat ratio method
Journal of Forestry Research, 2020The tropical arboreal species Brazilian mahogany (Swietenia macrophylla) is very important economically and ecologically, for which understanding ecophysiological variables such as sap flow will improve understanding of the species and its cultivation. This paper aims to measure uncertainties (U) involved in the application of the heat ratio method for
Alisson Macendo Amaral +3 more
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Ratio of Specific Heats of Air, N2, and CO2 as a Function of Pressure by the Ultrasonic Method
The Journal of Chemical Physics, 1937Measurements have been made by Hodge of ultrasonic velocities at 27°C at pressures from 1 to 100 atmos. in air and N2 and at 1 to 60 atmos. in CO2. The results for air and N2 combined with the respective compressibility data of Holborn and Otto give at 27°C for air, values of γ between 1.406 at 1 atmos.
J. C. Hubbard, Alfred H. Hodge
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An on-off regulation method by predicting the valve on-time ratio in district heating system
Building Simulation, 2015Good room temperature control is beneficial for users’ thermal comfort and health. It also helps reduce energy consumption and carbon dioxide emissions inside the buildings. However, there are certain limitations with the current thermostatic valves commonly used in central heating systems, especially the ones used in China, since they cannot ...
Lanbin Liu, Lin Fu, Yi Jiang
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Transient Exhaust Gas Recirculation Ratio Measurement Utilizing Heated NDIR Method
SAE Technical Paper Series, 2012<div class="section abstract"><div class="htmlview paragraph">Most of the recent clean diesel engines are equipped with an exhaust gas recirculation (EGR) technology in order to meet the strict criteria of NOx and particulate matter (PM) as required in the current emission regulations.
Tomoshi Yoshimura +2 more
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An Intelligent On-Off Regulation Method by Predicting the Valve On-Time Ratio in District Heating
Volume 1: Combined Energy Cycles, CHP, CCHP, and Smart Grids; Concentrating Solar Power, Solar Thermochemistry and Thermal Energy Storage; Geothermal, Ocean, and Emerging Energy Technologies; Hydrogen Energy Technologies; Low/Zero Emission Power Plants and Carbon Sequestration; Photovoltaics; Wind Energy Systems and Technologies, 2014Good room temperature control is beneficial for user thermal comfort and health. It also helps reduce energy consumption and carbon dioxide emissions inside the buildings. However, there are certain limitations with the current thermostatic valves commonly used in central heating systems, especially the ones used in China, since they cannot ...
Lanbin Liu, Yufei Ma
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International Journal of Thermophysics, 1998
The measurement of specific heat by heat flux differential scanning calorimetry using the “ratio method” requires three consecutive runs (baseline, reference and sample) to be performed using identical temperature programs. Traditionally measurements are taken as the sample of interest is subjected to a controlled heating rate, but it is also possible ...
T. L. Shaw, J. C. Carrol
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The measurement of specific heat by heat flux differential scanning calorimetry using the “ratio method” requires three consecutive runs (baseline, reference and sample) to be performed using identical temperature programs. Traditionally measurements are taken as the sample of interest is subjected to a controlled heating rate, but it is also possible ...
T. L. Shaw, J. C. Carrol
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International Journal of Computational Methods, 2016
Two-dimensional (2D) and axisymmetric minimum length nozzles (MLN) with constant and variable specific heat were strictly designed using the method of characteristics. Requirements for the exit Mach number and flow field uniformity were proposed for the nozzles design.
Fu, Lei, Zhang, Shuai, Zheng, Yao
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Two-dimensional (2D) and axisymmetric minimum length nozzles (MLN) with constant and variable specific heat were strictly designed using the method of characteristics. Requirements for the exit Mach number and flow field uniformity were proposed for the nozzles design.
Fu, Lei, Zhang, Shuai, Zheng, Yao
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Journal of Atmospheric and Oceanic Technology, 1989
Abstract An analysis technique is outlined that calculates the sensible and latent heat fluxes by the Bowen ratio and aerodynamic methods, using profile measurements at any number of heights. Field measurements at two sites near Churchill, Manitoba, comprising over 4000 hours of data from June through September, are used to assess the relative accuracy
David H. Halliwell, Wayne R. Rouse
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Abstract An analysis technique is outlined that calculates the sensible and latent heat fluxes by the Bowen ratio and aerodynamic methods, using profile measurements at any number of heights. Field measurements at two sites near Churchill, Manitoba, comprising over 4000 hours of data from June through September, are used to assess the relative accuracy
David H. Halliwell, Wayne R. Rouse
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Journal of Chemical Education, 1988
The authors present a student experiment in which γ is measured using Ruchardt's method. The experiment yields good results, is visually appealing, and there is a meaningful, yet simple, interfacing of experimental equipment to a microcomputer.
S. Walter Orchard, Leslie Glasser
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The authors present a student experiment in which γ is measured using Ruchardt's method. The experiment yields good results, is visually appealing, and there is a meaningful, yet simple, interfacing of experimental equipment to a microcomputer.
S. Walter Orchard, Leslie Glasser
openaire +1 more source