SEARCH THE JOURNAL CONTENT
Enter one or more keywords to search for.
For exact phrase matching use quotation marks (e.g. "speed controller").
Note that '*' and '?' wildcards are supported.
Search results for: frequency
600 results found.
60 pages of results.
Sort by relevance / Sorted by date ▼
Year: 2009, Volume: 9, Issue: 2
... ] (2) 100 100 100δ KC p was based on the hybrid engine built in our laboratory. The number of phases is denoted by m1, the frequency of II. EQUIVALENT CIRCUITS supply voltage by f1 (in [Hz]), the number of coils on phase By analogy with the characteristics of asynchronous ...
Year: 2009, Volume: 9, Issue: 1
... 2002. Oxford university press, 2005. [5] S.Jayalalitha,, V.Jayashankar, "A correlation method for detection [13] V.Jeyabalan, S.Usa, "Frequency domain correlation techniques of partial discharges in transformers," IEEE Transaction on power for location of partial discharge in transformer windings", IEEE- delivery, Vol.21 ...
Year: 2009, Volume: 9, Issue: 1
... technique is Teeth pairing with cogging torque has a periodic shape versus the mechanical different tooth width [5]. Some researchers proposed opti- position thus, from frequency analysis point of view, to mizing of the magnet pole span to pole pitch ratio [2 ], [3 ], cancel the vibration related to ...
Year: 2009, Volume: 9, Issue: 1
... condition is better) using the channel mixer, the frequency synthesizer, the active filters at the estimation result ... T. H. Lee, The Design of CMOS Radio-Frequency Integrated Virtual antenna arrays," in PIMRC, ... 4π )2 d k Ml N f narrowband, frequency-flat Rayleigh fading channels and Gt Gr λ 2 ( ...
Year: 2009, Volume: 9, Issue: 1
... that the rotor speed is estimated from In the following we discuss about the slip frequency and easily available voltages and currents of the induction speed estimation using monitored stator ... said before, the induction motor speed estimator is based on the introduction of a constant-frequency carrier signal in the stator currents. For that the PWM reference voltage ( ...
Year: 2009, Volume: 9, Issue: 1
... 10mH, 15mH, 20mH and 25mH ma (sin ω m t+ 0.16 sin 3ω m t)+; ω m t 2π respectively). The frequency commutation is fc=5kHz, the 3 3 frequency modulation is fp= 50Hz, the frequency modulation ratio is mf= fc/fp=100, ...
Year: 2009, Volume: 9, Issue: 1
... ,t [1 cos(2π • frΔ)]+ (1) TS r =1 source of interference to narrowband systems operating in the 2 same frequency interval and deny harmless coexistence of Sg( f) 2 t 1+ q UWB-PPM and narrowband systems. A new code denoted as+ 2 •[ ...
Year: 2009, Volume: 9, Issue: 1
... The two design. variants are identical in main characteristics, but they differ In-wheel motor is placed inside the front wheel, with in internal geometry and needed pulse frequency. inner stator fixed on the imobile shaft and outer rotor fixed on the front wheel rim through spokes. Mechanical TABLE II. MAIN ELECTROMECHANICAL DATA Component Symbol ...
Year: 2008, Volume: 8, Issue: 2
... University Chernivtsi, Ukraine, Kotsiubynsky str. 2, 58012 m.ivanchuk@chnu.edu.ua Abstract — Improvement of an autodyne Nuclear quadruple resonance spectrometer is offered. The change of frequency of oscillatory LC circuit of the spectrometer is carried out in two ways: by varicap and variable capacitor. A processor module for the capacitor and varicap control ...
Year: 2008, Volume: 8, Issue: 2
... . An autonomous device is built around a low-cost hardware platform, targeting to work with low- power consumption, but without compromising the measurement accuracy or the sampling frequency. While the applications of the system are numerous, ranging from monitoring the angles of large construction structures (bridges, large pipes, etc.) or ...
Search took 0.271 seconds
The search engine database includes all papers published after 2007, including titles, author names, abstracts, keywords, full papers text, references and citations. For papers published between 2001 and 2006, please visit the Archive section.
We invite you to try the most frequently used search terms:
system - power - control - fault - network - load - model - frequency - converter - transformer - harmonic - computer - algorithm - cancer - simulation - computer - estimate - optimal control - expert system - electromagnetic - interference - data transmission - neural network - electrocardiogram signal - model - cluster - design - wavelet - antenna - wireless sensor - coupling - robust - noise - signal processing - system identification - translation - nonlinear systems - induction motor - speed controller - shape optimization - fuzzy network - wireless sensor network
