The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Let X be a space of homogeneous type. Assume that an operator L has a bounded holomorphic functional calculus on L2(X) and the kernel of the heat semigroup {e−tL}t>0 satisfies the Davies–Gaffney estimates. Without the assumption that L is self-adjoint, we develop a theory of Hardy spaces HLp(X), 0<p⩽1, which includes a molecular decomposition, an atomic decomposition, a square function characterization,...
A thorough research on the high-accuracy estimation for the electrical harmonic parameters by using the Interpolated FFT algorithm was conducted. The window type and width are the main factors influencing the analysis precision. Like Bartlett, Hann, and Hamming windows, Bartlett-Hann window has a main lobe at the origin and asymptotically decaying side lobes on both sides. It is a linear combination...
Project survey measures usual transform the GPS geodetic height into the normal height instead of fourth level of measurement in highway, railway and water conservancy works. Because of the linear measurement of the region is banded, the compound surfaces are bound to appear a great error. In this paper, GPS leveling point is a curve which put on an elevation as the function, the two proposed to simplify...
To improve compression capacity, motion compensation (MC) is utilized in H.264, which includes 6-tap FIR for 1/2-pel interpolation and 2-tap filter for 1/4-pel interpolation. MC uses up most decoding time, and is the expensive part of H.264 decoder. Some consumer electronics, such as smartphones, may not have enough processing capability to decode high definition video program in real time. MC must...
Under the four-component wind speed model, the wind turbine output power was researched based on the Jensen wake model, which combined of the dynamic wind turbine model; anglicizing with the distribution of wind power from the theoretical, optimization method that named quadratic interpolation was used, and the optimization tool of Matlab\Simulink verified that the correct conclusion has a certain...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.