نتایج جستجو برای: unbalanced superelevation
تعداد نتایج: 9550 فیلتر نتایج به سال:
A delta-connected STATCOM with cascade multilevel full H-bridge (FHB) converter has been applied for phase balancing and power factor correction of unbalanced load in a three-phase, three-wire power distribution system. In this paper, a feedforward compensation formula is presented for the STATCOM by using the symmetrical components method to compensate unbalanced load. Computer simulation is p...
A collision search for a pair of n-bit unbalanced functions (one is R times more expensive than the other) is an instance of the meet-in-the-middle problem, solved with the familiar standard algorithm that follows the tradeoff TM = N , where T and M are time and memory complexities and N = 2. By combining two ideas, unbalanced interleaving and van Oorschot-Wiener parallel collision search, we c...
EDITOR—In the October 2000 issue of the journal, five new cases of unbalanced translocations with partial monosomy 4p and partial trisomy 8p were described by Wieczorek et al and the authors concluded that de novo translocations causing Wolf-Hirschhorn syndrome (WHS) are more frequent than previously estimated. In particular, unbalanced de novo translocations involving the short arms of chromos...
In this study, an alternative control method is proposed to improve the harmonic suppression efficiency of the active power filter in a distorted and unbalanced power system to compensate the perturbations caused by unbalanced non-linear loads. The proposed method uses a selftuning filter (STF) to process the grid voltage in order to provide a uniform reference voltage to obtain the correct ang...
Distributed generations are renewable sources that do not create environmental pollution and install near the site of consumption. Also, the generated power of wind and solar sources are faced with uncertainty due to the dependence on external factors. With determination of the appropriate location and size of these sources in distribution networks their positive effects can be realized. But it...
Two further cases of WHS with unbalanced de novo translocation t(4;8) characterised by CGH and FISH.
EDITOR—In the October 2000 issue of the journal, five new cases of unbalanced translocations with partial monosomy 4p and partial trisomy 8p were described by Wieczorek et al and the authors concluded that de novo translocations causing Wolf-Hirschhorn syndrome (WHS) are more frequent than previously estimated. In particular, unbalanced de novo translocations involving the short arms of chromos...
To minimize power losses, it is important to determine the location and size of local generators to be placed in unbalanced power distribution systems. On account of some inherent features of unbalanced distribution systems, such as radial structure, large number of nodes, a wide range of X/R ratios, the conventional techniques developed for the transmission systems generally fail on the determ...
Notwithstanding it was originally proposed to estimate Error Component Models (ECM) using balanced panels, most applications use unbalanced panels. When unbalanced panels include both time and individual random effects, special computational problems arise. Wansbeek and Kapteyn (1989) analyze algorithms for estimating unbalanced two-way ECM; Baltagi et al. (2002) compares three classes of estim...
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