All-optical 20 Gb/s logic AND gate with tunable single-channel output or dual-channel outputs using a PPLN waveguide

2007 ◽  
Author(s):  
Jian Wang ◽  
Junqiang Sun ◽  
Xinliang Zhang ◽  
Dexiu Huang ◽  
M.M. Fejer
Keyword(s):  
Single Channel ◽  
Channel Output ◽  
Dual Channel ◽  
All Optical

Dual-channel-output all-optical logic AND gate at 20 Gbit/s based on cascaded second-order nonlinearity in PPLN waveguide

2007 ◽  
Vol 43 (17) ◽  
pp. 940 ◽  
Author(s):  
J. Wang ◽  
J. Sun ◽  
Q. Sun ◽  
D. Wang ◽  
M. Zhou ◽  
...  
Keyword(s):  
Second Order ◽  
Optical Logic ◽  
Channel Output ◽  
Dual Channel ◽  
All Optical ◽  
Second Order Nonlinearity

scholarly journals Synchronous control of dual-channel all-optical multistate switching

2013 ◽  
Vol 38 (24) ◽  
pp. 5369 ◽  
Author(s):  
Jiteng Sheng ◽  
Junfeng Wang ◽  
Min Xiao
Keyword(s):  
Synchronous Control ◽  
Dual Channel ◽  
All Optical

Monaural Versus Binaural Discrimination for Normal Listeners

1963 ◽  
Vol 6 (3) ◽  
pp. 263-269 ◽  
Author(s):  
Richard G. Chappell ◽  
James F. Kavanagh ◽  
Stanley Zerlin
Keyword(s):  
Single Channel ◽  
Normal Hearing ◽  
Dual Channel ◽  
Recording Session ◽  
Monosyllabic Words ◽  
Image Separation ◽  
Test Materials ◽  
The Difference

Normal hearing adults demonstrated approximately 20% better intelligibility scores for monosyllabic words presented binaurally (with a background of conversation) than to these words presented monaurally. The test materials were recorded on dual-channel tape through two head-mounted microphones. These microphones were directed toward each of three speakers who in turn produced the monosyllabic words while two simultaneous conversations were carried on by four other participants. Throughout the recording session the experimenters attempted to preserve as naturalistic a situation as possible. The 18 subjects with normal hearing listened through earphones to a single channel of this tape presented monaurally and to both channels delivered binaurally. The difference between the monaural and binaural intelligibility scores is discussed in terms of image-separation in space.

Dual-Channel PolSK Optical Transmissions Using SOA-Based All-Optical Polarization Modulations

2009 ◽  
Vol 29 (1) ◽  
pp. 138-144 ◽  
Author(s):  
王陆唐 Wang Lutang ◽  
方捻 Fang Nian ◽  
王颖 Wang Ying ◽  
黄肇明 Huang Zhaoming
Keyword(s):  
Optical Polarization ◽  
Dual Channel ◽  
All Optical

scholarly journals Speed Calibration and Traceability for Train-Borne 24 GHz Continuous-Wave Doppler Radar Sensor

Sensors ◽  
2020 ◽  
Vol 20 (4) ◽  
pp. 1230
Author(s):  
Lei Du ◽  
Qiao Sun ◽  
Jie Bai ◽  
Xiaolei Wang ◽  
Tianqi Xu
Keyword(s):  
Continuous Wave ◽  
Doppler Radar ◽  
Single Channel ◽  
Full Range ◽  
Calibration Method ◽  
Simulation System ◽  
Radar Sensor ◽  
Dual Channel ◽  
Calibration Methods ◽  
24 Ghz

The 24 GHz continuous-wave (CW) Doppler radar sensor (DRS) is widely used for measuring the instantaneous speed of moving objects by using a non-contact approach, and has begun to be used in train-borne movable speed measurements in recent years in China because of its advanced performance. The architecture and working principle of train-borne DRSs with different structures including single-channel DRSs used for freight train speed measurements in railway freight dedicated lines and dual-channel DRSs used for speed measurements of high-speed and urban rail trains in railway passenger dedicated lines, are first introduced. Then, the disadvantages of two traditional speed calibration methods for train-borne DRS are described, and a new speed calibration method based on the Doppler shift signal simulation by imposing a signal modulation on the incident CW microwave signal is proposed. A 24 GHz CW radar target simulation system for a train-borne DRS was specifically realized to verify the proposed speed calibration method for a train-borne DRS, and traceability and performance evaluation on simulated speed were taken into account. The simulated speed range of the simulation system was up to (5~500) km/h when the simulated incident angle range was within the range of (45 ± 8)°, and the maximum permissible error (MPE) of the simulated speed was ±0.05 km/h. Finally, the calibration and uncertainty evaluation results of two typical train-borne dual-channel DRS samples validated the effectiveness and feasibility of the proposed speed calibration approach for a train-borne DRS with full range in the laboratory as well as in the field.

scholarly journals Comparative Analysis of Fault-Tolerant Dual-Channel BLDC and SR Motors

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2489
Author(s):  
M. Korkosz ◽  
P. Bogusz ◽  
J. Prokop ◽  
B. Pakla ◽  
G. Podskarbi
Keyword(s):  
Comparative Analysis ◽  
Direct Current ◽  
Permanent Magnets ◽  
Single Channel ◽  
Fault Tolerant ◽  
Operating Conditions ◽  
Switched Reluctance ◽  
Dual Channel ◽  
Reluctance Motor ◽  
Two Machines

This article presents the results of a comparative analysis of two electronically commutated brushless direct current machines intended for fault-tolerant drives. Two machines designed by the authors were compared: a 12/14 dual-channel brushless direct current motor (DCBLDCM) with permanent magnets and a 12/8 dual-channel switched reluctance motor (DCSRM). Information is provided here on the winding configuration, the parameters, and the power converters of both machines. We developed mathematical models of the DCBLDCM and DCSRM which accounted for the nonlinearity of their magnetization characteristics in dual-channel operation (DCO) and single-channel operation (SCO) modes. The static torque characteristics and flux characteristics of both machines were compared for operation in DCO and SCO modes. The waveforms of the current and the electromagnetic torque are presented for DCO and SCO operating conditions. For DCO mode, an analysis of the behavior of both machines under fault conditions (i.e., asymmetrical control, shorted coil, and open phase) was performed. The two designs were compared, and their strengths and weaknesses were indicated.

Control of the Ratio of Midline Parietal to Midline Frontal Eeg Alpha Rhythms through Auditory Feedback

1973 ◽  
Vol 37 (3) ◽  
pp. 815-824
Author(s):  
David P. Nowlis ◽  
Edward C. Wortz
Keyword(s):  
Auditory Feedback ◽  
Single Channel ◽  
Test Period ◽  
Voluntary Control ◽  
Biofeedback Training ◽  
Feedback Training ◽  
Significant Control ◽  
Dual Channel ◽  
Channel Feedback ◽  
Eeg Alpha

The study asks whether voluntary control over the relative appearance of EEG alpha in midline frontal and parietal sites can be achieved with auditory biofeedback training. 16 Ss participated in the training and testing regimen. Ss varied in the number of hour-long single-channel feedback training sessions received. In the test period, dual-channel feedback was given, and Ss were asked to increase the ratio of frontal to parietal alpha and then the reverse. Evidence for small but significant control is presented. Amount of control was correlated with number of practice sessions.

Stability of symptom control after replacement of impulse generators for deep brain stimulation

2009 ◽  
Vol 110 (6) ◽  
pp. 1274-1277 ◽  
Author(s):  
Niels Allert ◽  
Holger Kirsch ◽  
Waldemar Weirich ◽  
Hans Karbe
Keyword(s):  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Single Channel ◽  
Short Circuit ◽  
Symptom Control ◽  
Technical Problems ◽  
Dual Channel ◽  
Stimulation Parameters ◽  
The Stability ◽  
Deep Brain

Object Impulse generators (IPGs) for deep brain stimulation (DBS) need to be replaced when their internal batteries fail or when technical problems occur. New IPGs are routinely programmed with the previous stimulation parameters. In this study, the authors evaluate the stability of symptom control after such IPG replacements. Methods The authors retrospectively analyzed the outcome of 56 IPG replacements in 42 patients with various movement disorders treated using DBS. Results Stable symptom control was found in 65% of single-channel IPG replacements and 53% of dual-channel IPG replacements. Worsening of symptoms resulted primarily from changes in stimulation effects requiring reprogramming of stimulation parameters (17% of dual-channel IPG and 25% of single-channel IPG). In 14% of dualchannel IPG replacements, instability resulted from erroneous extension adjustment with change in laterality. A new short circuit of active with previously inactive contacts of the quadripolar stimulation lead resulted in a worsening of symptoms in 4% of replacements. Conclusions Replacement of the IPG requires careful follow-up of patients with DBS to ensure stable symptom control.

Comparison of Optics and Performance of Single Channel and a Novel Dual-channel Fiberoptic Ureteroscope

Urology ◽  
2015 ◽  
Vol 85 (1) ◽  
pp. 268-272 ◽  
Author(s):  
Achim Lusch ◽  
Zhamshid Okhunov ◽  
Michael del Junco ◽  
Renai Yoon ◽  
Ramtin Khanipour ◽  
...  
Keyword(s):  
Single Channel ◽  
Dual Channel ◽  
And Performance
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