Search is based on the first stage DC/DC in the solar photovoltaic system, where it
was appropriate to use Ripple Correlation Control method for tracking the maximum
power point of photovoltaic arrays. The technique takes advantage of the signal ri
pple,
which is automatically present in power converters, where the ripple is interpreted as a
perturbation from which a gradient ascent optimization can be realized. The Basic feature
of Ripple Correlation Control technique converges asymptotically at maximum speed to
the maximum power point, and has simple circuit implementations. And will validate the
results in practice.
AFM has been used to get microscopic information of the surface structure
and to plot topographies representing the surface relief. AFM technique can be
used to visualize the surface relief, specify the growth of thin films, and
determine Height parameters.
الخشونة
التموج
جذر متوسط مربع الارتفاعات
العزم الإحصائي الثالث
الانحراف عن التناظر
العزم الإحصائي الرابع
وصف التفلطح
المتوسط الحسابي للارتفاعات
كثافة القمم
المتوسط الحسابي لانحناءات القمم
(Roughness (R
(Waviness (W
(Root Mean Square height (RMS
Surface Skewness
Surface Kurtosis
Arithmetical mean height
Density of peaks and Arithmetic mean peak curvature
المزيد..