نتایج جستجو برای: phase to single
تعداد نتایج: 10956920 فیلتر نتایج به سال:
In present study, using Least Squares (LS) method, we determine the position smoothing in GPS single-frequency receiver by means of pseudo-range and carrier phase measurements. The application of pseudo-range or carrier phase measurements in GPS receiver positioning separately can lead to defects. By means of pseudo-range data, we have position with less precision and more distortion. By use of...
Template-free CuO nanorods were synthesized through a three-step chemical method with no water-insoluble materials. The first step included the preparation of a Cu-complex, which was obtained from dipicolinic acid, L-lysine, and copper nitrate. Then, as the second step, the obtained solution was allowed to be relaxed for a week to and formation of some blue single-crystals single crystals, whic...
This work aims to implement the control system of a single-phase, multi-port AC-DC converter with high-frequency isolation based on dual active bridge (DAB) topology associated three-state switching cell (3SSC) applied distributed generation system. The has one ac port and two dc ports, this being multi-input, multi-output (MIMO) in which there is coupling between input output variables. genera...
the performances of two-phase polymer-liquid pebax®/polyethylene glycol (peg) and three-phase polymer-liquid-solid pebax®/peg/mwnt thin film composite membranes for co2 and ch4 permeation were studied. the effect of temperature and mwnt/pebax® ratio on single gas (co2 and ch4) permeability was investigated. the permeation of both gases was measured at different temperatures from 303 to 323 ˚k. ...
In this paper a new topology is introduced for three-phase inverter that includes a multi-level module, a three-phase inverter bridge and middle levels selection unit. The main advantage of proposed topology is using fewer switches and diodes to reach the maximum level of output voltage. The structure consists of a single-phase multilevel module; three bidirectional switches and a three-phase i...
background: previous studies reported that neonatal and maternal complications as well as duration of labor could be diminished through labor management. therefore, we aimed to evaluate the effect of intramuscular (im) administration of atropine and hyoscine combination on labor progress and maternal and neonatal outcomes in primigravid women admitted to taleghani hospital of arak, iran. method...
In this paper, the phase properties of waves reflected from one-dimensional double-periodic quasi-crystals consisting of single-negative materials are investigated using transfer matrix method. It is observed that, by increasing the double-periodic generation number, a large omnidirectional band gap is created in the single-nagative frequency range. We limit our studies to the frequency range o...
b ackground : tuberculosis is a crucial health problem. establishing a rapid, reliable and still inexpensive diagnostic method for tuberculosis seems to be substantial in developing countries where tb has very high incidence rate . methods: an indirect enzyme-linked immunosorbent assay (elisa ) was established to detect serum antibodies against mycobacterium tuberculosis. three kinds of...
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