Results 61 to 70 of about 181,254 (309)
Hot-Wire Calibration at Low Velocities: Revisiting the Vortex Shedding Method
Advances in Mechanical Engineering, 2013 The necessity to calibrate hot-wire probes against a known velocity causes problems at low velocities, due to the inherent inaccuracy of pressure transducers at low differential pressures.
Sohrab S. Sattarzadeh +2 more
doaj +1 more source
Measurement of low-pressure Knudsen force with deflection approximation for gas detection
Results in Physics, 2019 In this paper, experimental examinations are done to evaluate the thermal Knudsen force in Knudsen gauge at low-pressure condition. This work has focused on the simple technique to visibly observe the induced Knudsen force as main parameter which could ...
Dat D. Vo +3 more
doaj +1 more source
Shearing-Stress Measurements by use of a Heated Element [PDF]
, 1954 The rate of local heat transfer from a solid surface to a moving fluid is related to the local skin frinction. Measurements of the heat transmission from small elements embedded in the surface of a solid can thus be used to botain local skin-friction ...
Liepmann, H. W., Skinner, G. T.
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, 2018 In this work, we report the fabrication of a high temperature measurement setup to measure Figure of merit (ZT). This setup facilitates the simultaneous measurement of Seebeck coefficient ({\alpha}), thermal conductivity (\kappa), and electrical ...
Pandey, Sudhir K., Patel, Ashutosh
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Advanced Functional Materials, EarlyView.ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo +10 more
wiley +1 more source
Static and dynamic characteristics of turbulent flow in a closed compound channel
Revista Facultad de Ingeniería Universidad de Antioquia, 2013 The hot-wire anemometry technique was employed to study the velocity distribution and dynamic characteristics of the flow in two types of closed compound channels.
Jhon N. V. Goulart +2 more
doaj +1 more source
Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control
Advanced Functional Materials, EarlyView.A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong +7 more
wiley +1 more source
Measurement of point velocities in turbulent liquid flow [PDF]
Turbulent water flow velocity distribution using hot-wire anemometer and photographic ...
Burt, S. K., Greene, R. W.
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A CFD technique for estimating the flow distortion effects on LiDAR measurements when made in complex flow fields [PDF]
, 2013 The effect of flow distortion on the measurements produced by a LiDAR or SoDAR in close proximity to either complex terrain or a structure creating localised flow distortion is difficult to determine by analytical means.
Astrup, P. +5 more
core
Validation of data analysis routines for a thermal probe apparatus using numerical data sets [PDF]
, 2008 Most thermal properties of construction materials used in the analysis of building performance have been measured under laboratory conditions, using a guarded hot box or hot plate apparatus. As a consequence, these properties seldom reflect the impact of
De, Wilde, Goodhew, S, Griffiths, R
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