Results 281 to 290 of about 8,818,903 (344)
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Hysteresis during contact angles measurement
Journal of Colloid and Interface Science, 2010A theory, based on the presence of an adsorbed film in the vicinity of the triple contact line, provides a molecular interpretation of intrinsic hysteresis during the measurement of static contact angles. Static contact angles are measured by placing a sessile drop on top of a flat solid surface.
M Elena, Diaz +3 more
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Contact angle measurement and contact angle interpretation
Advances in Colloid and Interface Science, 1999Recent progress in the correlation of contact angles with solid surface tensions are summarized. The measurements of meaningful contact angles in terms of surface energetics are also discussed. It is shown that the controversy with respect to measurement and interpretation of contact angles are due to the fact that some (or all) of the assumptions made
D.Y. Kwok, A.W. Neumann
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2017
Contact angle has been an important parameter to determine the wetting ability of the polymer membrane surface. Contact angle has gained interest in surface science in regards to its fundamental aspects and application point of view. This chapter will give an insight into fundamentals of contact angle including the theoretical backgrounds, brief ...
Hebbar, R. S. +2 more
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Contact angle has been an important parameter to determine the wetting ability of the polymer membrane surface. Contact angle has gained interest in surface science in regards to its fundamental aspects and application point of view. This chapter will give an insight into fundamentals of contact angle including the theoretical backgrounds, brief ...
Hebbar, R. S. +2 more
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Review of Scientific Instruments, 1999
The apparatus described uses polarized light to trace the rotation angle of an object. The result of the measurement does not depend on the distance between the object and the base surface within a wide range, and the resolution is better than 0.25° with the full range of 180°. There are no electrical contacts to the rotating object.
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The apparatus described uses polarized light to trace the rotation angle of an object. The result of the measurement does not depend on the distance between the object and the base surface within a wide range, and the resolution is better than 0.25° with the full range of 180°. There are no electrical contacts to the rotating object.
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Applied Mechanics and Materials, 2012
Laser is widely used in angle measurements. This paper presents several frequently used methods of angle measurement that utilize laser, including：autocollimation angle measurement, angle measurement based on internal-reflection effect, laser interference angle measurement, angle measurement with ring laser and angle measurement with CCD. The principle,
Yang Wang +2 more
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Laser is widely used in angle measurements. This paper presents several frequently used methods of angle measurement that utilize laser, including：autocollimation angle measurement, angle measurement based on internal-reflection effect, laser interference angle measurement, angle measurement with ring laser and angle measurement with CCD. The principle,
Yang Wang +2 more
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Measuring mislocalization of angle vertices.
Canadian Journal of Experimental Psychology / Revue canadienne de psychologie expérimentaleLocalisation of simple stimuli such as angle vertices may contribute to a plethora of illusory effects. We focus on the Müller-Lyer illusion in an attempt to measure and characterise a more elementary effect that may contribute to the magnitude of said illusion. Perceived location error of angle vertices (a single set of Müller-Lyer fins) and arcs in a
Pavle Valerjev, Marin Dujmović
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1989
In this chapter the term grain angle will be used from time to time to refer to deviations other than those due to spiral grain or its related phenomena of interlocked and wavy grain. Sloping grain in sawn timber, commonly called cross grain (Anderson et al. 1945), can arise in many ways.
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In this chapter the term grain angle will be used from time to time to refer to deviations other than those due to spiral grain or its related phenomena of interlocked and wavy grain. Sloping grain in sawn timber, commonly called cross grain (Anderson et al. 1945), can arise in many ways.
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Measurement of Small Surface Angles
Nature, 1949IT has been established that multiple-beam fringes of equal chromatic order are particularly sensitive for the evaluation of small surface angles. Yet they suffer from a disadvantage in that the angle shown by the fringes depends upon the orientation of the surface relative to the spectrograph slit.
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