199,277 research outputs found
Steele, David P. - An inaugural dissertation on pneumonia
No full textHandwritten inaugural dissertation on pneumonia by David P. Steele, of Lauderdale County, Tennessee.Inaugural dissertation; no. 77
On the Computation of 16-QAM and 64-QAM Performance in Rayleigh-Fading Channels
No full textSUMMARY Quadrature Amplitude Modulation (QAM) schemes are attractive in terms of bandwidth efficiency and offer a number of subchannels with different integrities via both Gaussian and Rayleigh-fading channels, Specifically, the 16-QAM phasor constellation has two, while the 64-QAM possesses three such subchannels, which become dramatically different via Rayleigh-fading channels. The analytically derived bit error rate (BER) formulae yield virtually identical curves with simulation results, exhibiting adequate BERs for the highest integrity subchannels of both 16-QAM and 64-QAM to be further reduced by forward error correction coding (FEC). However, the BERs of the lower integrity subchannels require fading compensation to reduce their values for FEC techniques to become effective. This property creates ground for a variety of carefully matched, embedded mobile transmission schemes of different complexities. The practical implementation of such an embedded scheme is demonstrated by a low-cost, low-complexity and low consumption 50 kBd mobile video telephone scheme offering adequate speech and image quality for channel SNRs in excess of about 20 dB via Rayleigh-fading channels. key words: QAM theory; modulation for microcellular fading channels
Letter from W. P. Dole to J. P. Usher with a letter from E. Steele, 1863
No full textLate Agent Hanson has nominated Dr. Melendy and Judge McGrew as Supervisors. Agent Steele approves of Melendy, but disapproves that of McGrew, instead nominate E. J. Whipple
Letter from G. M. Hanson to Wm. P. Dole with letter from E. Steele, 1864
No full textEnclosed letter from E. Steele to D. E. Hamblin relative to payment for the cattle furnished by him, and urges the settlement be made by Steele
Effect of Soft and Softer Handoffs on CDMA System Capacity
No full textAbstract? The effect of soft and softer handoffs on code-division multiple-access (CDMA) system capacity is evaluated for unsectorized and sectorized hexagonal cells according to an average bit energy-to-interference power spectral density, which corresponds to a bit-error rate (BER) of 10-3. The effect of imperfect sectorization on sectorization efficiency is also considered. On the reverse link, there is no capacity loss as no extra channels are needed to perform soft handoff, while the macrodiversity provided by soft handoff can improve the reverse-link quality and extend the cell coverage. On the forward link, when soft handoff is employed in unsectorized cells, the capacity loss due to two traffic channels assigned to a user in the handoff zone is 0.2% or 1.1% for a voice activity factor of 3/8 or 1/2, respectively. As the forward-link capacity is higher than that of the reverse link, this small capacity loss does not affect the system capacity. For sectorized cells having three sectors per cell, there are overlapping coverage areas between sectors, where mobiles in these areas are subjected to an increase in cochannel iterference. For an overlapping angle of 5°, the sectorization efficiency is 0.96 and 0.7 for the reverse-link and forward-link systems, respectively. When soft and softer handoffs are employed, the forward-link sectorization efficiency is improved to 0.97. We find the application of soft and softer handoff improves not only the forward-link capacity, but also the signal-to-interference ratio (SIR) for mobiles near the cell and sector boundaries. Index Terms?CDMA, macrodiversity, sectorization efficiency, soft handoff, softer handoff
World War I record of service survey for Fred E. Steele, Jr., signed 3 February 1926
No full textQuestionnaire about Fred Elton Steele, Jr.'s service in World War I, 1917-1919, signed by Steele on 3 February 1926.Questionnaire originally part of a survey of Norwich University alumni. Data from these questionnaires was used in a chapter of "Vermont in the world war, 1917-1919" by Harold P. Sheldon (1928)
Steele, P J R, 418986
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/418979Surname: STEELE. Given Name(s) or Initials: P J R. Military Service Number or Last Known Location: 418986. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 54355.243225
Item: [2016.0049.51240] "Steele, P J R, 418986
2020 Leroy P. Steele Prizes
No full textThe 2020 Leroy P. Steele Prizes were presented at the 126th Annual Meeting of the AMS in Denver, Colorado, in January 2020. The Steele Prize for Mathematical Exposition was awarded to Martin R. Bridson and André Haefliger; the Prize for Seminal Contribution to Research in Analysis/Probability was awarded to Craig Tracy and Harold Widom; and the Prize for Lifetime Achievement was awarded to Karen Uhlenbeck
Steele, (Mrs) W P, [No Service Number]
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/418982Surname: STEELE. Given Name(s) or Initials: (MRS) W P. Military Service Number or Last Known Location: [No Registration Number]. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 30865.243228
Item: [2016.0049.51243] "Steele, (Mrs) W P, [No Service Number]
World War I record of service survey for Edwin H. Steele, signed 22 April 1926
No full textQuestionnaire about Edwin Harrington Steele's service in World War I, 1917-1919, signed by Steele on 22 April 1926.Questionnaire originally part of a survey of Norwich University alumni conducted by a “Norwich in the World War” committee consisting of Charles N. Barber (chairman), Carl V. Woodbury, K.R.B. Flint, and Gustaf A. Nelson. Data from these questionnaires may have been used in a chapter of "Vermont in the world war, 1917-1919" by Harold P. Sheldon (1928). Transcription by Carina Berg. Transcriptions may be subject to error
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