Mostrando 201 - 220 Resultados de 260 Para Buscar '"Chopper"', tiempo de consulta: 0.19s Limitar resultados
  1. 201
    “…In this technique consonant to drag picks, a specially designed chopper “Terminator” is used to initiate a unique dispersive mechanical force to create a full thickness nuclear crack (crack formation) at the weakest soft and thin equator, which automatically traverses through the center and to the equator on the other side. …”
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  2. 202
    “…In this study, the errors caused by grid side current harmonic distortion in the VSD system have been used depending on SPWM technique to generate switching signals for a four-quadrant chopper circuit that acts like a filter and compensates the harmonic content in the grid current and smooth ripples in both DC-link current and voltage. …”
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  3. 203
    “…By means of an accurate model of the electrical braking circuit (chopper and rheostat) and the frequency characterization of the current transducer, a correction coefficient as a function of the duty-cycle is estimated. …”
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  4. 204
    “…In addition, using the readout circuit of the nested chopper and correlated double-sampling (CDS) to reduce the noise and achieve a smaller resolution, the calibration circuit compensates for errors caused by the manufacturing process. …”
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  5. 205
    “…Input-referred noise is reduced using a high-gain TIA and chopper technique. The proposed circuit achieves 1.8 pA(rms) input-referred noise with a gain of 160 dBΩ and is implemented in a TSMC 130 nm CMOS process. …”
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  6. 206
    “…MATERIALS AND METHODS: In this experimental research, the thoracic region of the adult mouse spinal cord was sliced using a tissue chopper and the slices were incubated in a culture medium in the presence or absence of N/L type voltage sensitive calcium channels blocker (loperamide, 100 µM) or Na(+)/Ca(2+) exchangers inhibitor(bepridil, 20 µM) for 6 hours. 3-(4, 5-dimethylthiazol-2-yl)-2, 5 diphenyl tetrazolium (MTT) staining was used to assess slice viability while morphological features of apoptosis in motor neurons were studied using fluorescent staining. …”
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  7. 207
    “…For better spatial control of heating, a pulsed irradiation method using an optical chopper was introduced. As a result, single cells of C. elegans embryos as early as the 2-cell stage and single neurons in ganglia can be induced to express genes selectively. …”
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  8. 208
    por Ding, Ming, Zhu, Qianlong
    Publicado 2016
    “…This paper proposes an innovative clustering concept for the equivalent modeling of a PMSG-based wind power plant (WPP), in which the impacts of both the chopper protection and the coordinated control of active and reactive powers are taken into account. …”
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  9. 209
  10. 210
    “…When placed between two supermirror neutron polarizers and operated in a pulsed traveling-wave mode it allows to decouple its time- and wavelength-resolution and can therefore be used simultaneously as electronically tunable monochromator and fast beam chopper. As a first ‘real’ scientific application we intend its implementation in the PERC (p roton and e lectron r adiation c hannel) project related to high-precision experiments in neutron beta decay.…”
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  11. 211
    “…Voltage responsivity values were obtained in the range of 4 × 10(4) V/W and detectivity around 2 × 10(7) cm∙Hz(1/2)/W with a polarization current of 70 μA at a chopper frequency of 30 Hz. A minimum value of 2 × 10(−10) W/Hz(1/2) noise equivalent power was obtained at room temperature. …”
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  12. 212
    “…In this work, vibration signals from five components of a combine harvester (thresher, chopper, straw walkers, sieve box, and engine) are obtained by placing four accelerometers along the combine-harvester chassis in non-optimal locations. …”
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  13. 213
    “…This paper provides a hybrid solution for DFIG wind turbines with FRT capabilities, using both a modified switch-type fault current limiter (MSFTCL) and a direct current (DC) chopper. The proposed system has the merit of keeping the rotor current and the DC-link voltage within the permissible limits, enhancing the FRT capability of generators. …”
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  14. 214
  15. 215
    “…In monochromatic mode, a velocity selector and a flexible system of inter-collimation apertures define the neutron beam. A double-chopper system enables a time-of-flight (TOF) mode of operation, allowing an enhanced dynamic q range (q(max)/q(min)) and a flexible wavelength resolution. …”
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  16. 216
    “…To address these challenges, in this study, we use the Chopper algorithm as an alternative approach to graph embedding, which accelerates the iterative processes and thus reduces the running time of the iterative algorithms for three different (nervous system, blood, heart) undirected protein-protein interaction (PPI) networks. …”
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  17. 217
    “…In the VCN the decrease in growth of suppression with increasing suppressor level was largest for chopper units and smallest for onset-type units. The threshold elevations recorded for most unit types are insufficient to account for the magnitude of forward masking as measured behaviourally, however, onset responders, in both the cochlear nucleus and inferior colliculus demonstrate a wide dynamic range of suppression, similar to that observed in human psychophysics.…”
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  18. 218
    “…METHODS: Hippocampal slices were prepared by three different methods: a chopper, a vibratome, and a rotary slicer. To test slice integrity, we compared glycogen levels and immunohistochemistry of selected proteins in rat hippocampal slices immediately after dissection and following 2 and 4 hr of incubation. …”
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  19. 219
    “…Brightness signals of reflected sunlight of the targets were detected by a charged coupled device (CCD). A chopper system was adopted for fast astrometric data sampling, maximum 50 Hz, within a short observation time. …”
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  20. 220
    por Khatib, Moustafa, Perenzoni, Matteo
    Publicado 2018
    “…The readout chain is fabricated in a standard 150-nm CMOS technology and contains a cascade of a preamplification and noise reduction stage based on a parametric chopper amplifier and a direct analog-to-digital conversion by means of an incremental [Formula: see text] converter, performing a lock-in operation with modulated sources. …”
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