Results 271 to 280 of about 1,468,668 (317)
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The Journal of the Acoustical Society of America, 1996
A high gain acoustic transducer (200) is formed of a voice coil (218) and a magnetic material (238) housed within a transducer housing (202). The transducer housing (202) includes flexible, symmetrical dome halves (204, 206). Vibrations of the magnetic material (238) of the transducer (200) induce a current in the voice coil (218).
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A high gain acoustic transducer (200) is formed of a voice coil (218) and a magnetic material (238) housed within a transducer housing (202). The transducer housing (202) includes flexible, symmetrical dome halves (204, 206). Vibrations of the magnetic material (238) of the transducer (200) induce a current in the voice coil (218).
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SPIE Proceedings, 2005
Beryllium was incorporated in InGaAsN single quantum well (SQW). Comparing with the conventional InGaAsN SQW structures, photoluminescence (PL) investigations show a significant improvement. After 3000 sec of annealing at 700 °C, the PL peak area is about 20 times higher while the wavelength keeps 25 nm longer.
C. S. Peng +3 more
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Beryllium was incorporated in InGaAsN single quantum well (SQW). Comparing with the conventional InGaAsN SQW structures, photoluminescence (PL) investigations show a significant improvement. After 3000 sec of annealing at 700 °C, the PL peak area is about 20 times higher while the wavelength keeps 25 nm longer.
C. S. Peng +3 more
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IEEE Transactions on Nuclear Science, 1978
Improvements in the performance of high gain microchannel plates over the conventional Chevron are reported. The performance characteristics of a curved channel, a laminated MCP and a Chevron with an interposed mesh are reported. The curved channel MCP exhibits a pulse amplitude distribution as narrow as 45% FWHM at a gain of 106, whereas the laminated
Paul Henkel, Ray Roy, Joseph Wiza
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Improvements in the performance of high gain microchannel plates over the conventional Chevron are reported. The performance characteristics of a curved channel, a laminated MCP and a Chevron with an interposed mesh are reported. The curved channel MCP exhibits a pulse amplitude distribution as narrow as 45% FWHM at a gain of 106, whereas the laminated
Paul Henkel, Ray Roy, Joseph Wiza
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SPIE Proceedings, 1986
High Gain Nd:YLF AmplifierM. D. Thomas, M. G. Knights, E. P. ChicklisSanders Associates, Inc.95 Canal StreetNashua, New Hampshire 03061AbstractA small signal gain >40 db is reported in a single flashpumped Nd :YLF amplifier rod of9cm length. This remarkably high gain is achieved in a simple, double pass configuration.IntroductionAmplification of low ...
M. D. Thomas +2 more
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High Gain Nd:YLF AmplifierM. D. Thomas, M. G. Knights, E. P. ChicklisSanders Associates, Inc.95 Canal StreetNashua, New Hampshire 03061AbstractA small signal gain >40 db is reported in a single flashpumped Nd :YLF amplifier rod of9cm length. This remarkably high gain is achieved in a simple, double pass configuration.IntroductionAmplification of low ...
M. D. Thomas +2 more
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Proceedings of the IEE - Part II: Power Engineering, 1952
Various methods of measuring small currents and voltages with particular reference to the theoretical and practical limits of such measurements are discussed. Most of the methods described employ thermionic valves to amplify the signals to a level suitable for indication on a robust instrument. The more important methods of converting the signal into a
K. Kandiah, D.E. Brown
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Various methods of measuring small currents and voltages with particular reference to the theoretical and practical limits of such measurements are discussed. Most of the methods described employ thermionic valves to amplify the signals to a level suitable for indication on a robust instrument. The more important methods of converting the signal into a
K. Kandiah, D.E. Brown
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2008 IEEE Antennas and Propagation Society International Symposium, 2008
A modular high-gain antenna, installed at a relatively low height, has been shown to provide link budget improvement over a large part of the serviced cell, including near the cell border which shows the potential for larger site separations. Signal strength below the relatively narrow main beam is maintained by using null-filling.
M. Johansson, S. Petersson, S. Johansson
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A modular high-gain antenna, installed at a relatively low height, has been shown to provide link budget improvement over a large part of the serviced cell, including near the cell border which shows the potential for larger site separations. Signal strength below the relatively narrow main beam is maintained by using null-filling.
M. Johansson, S. Petersson, S. Johansson
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High gain decentralised control
IEE Proceedings D Control Theory and Applications, 1993Decentralised control of an interconnected power system is attempted using high gain feedback methodology. Two cases are presented treating the interactions as unknown in the first case and as known in the second case. The effect of interactions is nullified by using a high gain factor in the first case whereas a bound on the high gain factor is ...
Hanmandlu, M., Suryanarayana, N. V.
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2018
The improvement of teacher performance requires the accurate identification of a teacher's strengths and weaknesses. However, effective teachers, in addition to utilizing certain effective teaching skills, are strengthened by certain affective skills which are difficult to identify and, consequently, to measure. The research has identified a whole host
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The improvement of teacher performance requires the accurate identification of a teacher's strengths and weaknesses. However, effective teachers, in addition to utilizing certain effective teaching skills, are strengthened by certain affective skills which are difficult to identify and, consequently, to measure. The research has identified a whole host
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High power gain-clamped EDFAs with flat gain
OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171), 2001A two-stage all optical gain-clamped EDFA is designed for high output power to handle 64 channel WDM network systems. The EDFA has gain-clamped output powers up to 22 dBm with a flat gain bandwidth over 30 nm.
H. B. Choi +4 more
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High-Gain Avalanche Photodiode
Physics Today, 1997As optical communications systems get faster and faster, approaching 10 Gbit/second, near-infrared receivers are struggling to keep pace with them. What's needed are avalanche photodetectors with enough gain to amplify the much shorter pulses that come in at these higher bit rates.
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