172,362 research outputs found

    Rogasodes Chen and He

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    Rogasodes Chen and He Rogasodes Chen and He 1997, p 88 –89. Previously known only from the type species, Rogasodes masaicus Chen and He; a second species, described below, can be separated using the following key. 1. Fore wing vein cu-a interstitial (Figure 9); second metasomal tergite less than 1.7 times longer than third medially; pterostigma uniformly dirty yellow; mesopleuron and mesosternum pale yellow-brown........ scytaloptericola sp. nov. – Fore wing vein cu-a postfurcal to vein 1-M by approximately three vein widths; second metasomal tergite more than 1.8 times longer than third medially; pterostigma brown with extreme apex yellow; mesopleuron (except spectrum) and mesosternum pitchy brown........ masaicus Chen and HePublished as part of Quicke, Donald L. J. & Shaw, Mark R., 2005, First host records for the rogadine genera Rogasodes Chen and He and Canalirogas van Achterberg and Chen (Hymenoptera: Braconidae) with description of a new species and survey of mummy types within Rogadinae s. str., pp. 3525-3542 in Journal of Natural History 39 (40) on page 3526, DOI: 10.1080/00222930500392782, http://zenodo.org/record/522075

    Blind joint maximum likelihood channel estimation and data detection for SIMO systems

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    A blind adaptive scheme is proposed for joint maximum likelihood (ML) channel estimation and data detection of single-input multiple-output (SIMO) systems. The joint ML optimisation over channel and data is decomposed into an iterative optimisation loop. An efficient global optimisation algorithm called the repeated weighted boosting search is employed at the upper level to optimally identify the unknown SIMO channel model, and the Viterbi algorithm is used at the lower level to produce the maximum likelihood sequence estimation of the unknown data sequence. A simulation example is used to demonstrate the effectiveness of this joint ML optimisation scheme for blind adaptive SIMO systems

    Schooling and education.

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    Schooling and education by Giles R. Wright with Howard L. Green and Lee R. Parks. Number 4 in the New Jersey Ethnic Life Series. Published by New Jersey Historical Commission

    Data for Chen et al. 2019 JGR-Planets.zip

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    All data that went into the paper "Petrogenesis and shock metamorphism of basaltic lunar meteorites Northwest Africa 4734 and 10597".Citation:Chen, J., Jolliff, B. L., Wang, A., Korotev, R. L., Wang, K., Carpenter, P. K., Chen, H., et al., (2019), Petrogenesis and shock metamorphism of basaltic lunar meteorites Northwest Africa 4734 and 10597. submitted to Journal of Geophysical Research: Planets. </div

    Kleist, Johann Joachim Spalding and the Bestimmung des Menschen: Philosophy as a Way of Life?

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    "Bestimmung des Menschen" is a key term belonging to Heinrich von Kleist’s (1777–1811) so-called pre-poetic period, appearing with great frequency in his writings from 1799 to 1801. Besides representing one of the paradigmatic ideas of German thought from the Enlightenment to Idealism, the term serves to clarify the then prevailing intellectual trends, which prioritized practice over theory, hence providing a connection to the well-known view of philosophy as a way of life. Yet, thus far, the term has not received due attention from Kleist scholars, who generally mention it without deeming it worthy of systematic investigation. The aim of this paper is precisely to fill this gap, focusing both on Kleist’s usage of the term while also tracing it back to his most likely source, namely the treatise "Die Bestimmung des Menschen" (first edition 1748–eleventh and final edition 1794) by the Lutheran theologian Johann Joachim Spalding (1714–1804). As a result, the essay will offer a more complete account of Kleist’s early philosophical and theological studies, as well as a re-evaluation of the import of these studies. Along the way, this essay will demonstrate how Kleist’s allegedly immature and dilettante approach to philosophy actually belonged to the well-established, yet often misunderstood paradigm of protreptic, transformative, and performative thinking

    Guest editorial

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    R. Seracino, J.F. Chen and L. Hollawayhttp://www.elsevier.com/wps/find/journaldescription.cws_home/30405/description#descriptio

    Iterative Soft Interference Cancellation Aided Minimum Bit Error Rate Uplink Receiver Beamforming

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    Iterative multiuser receivers constitute an effective solution for transmission over Multiple Access Interference (MAI) infested channels, when invoking a combined multiuser detector and channel decoder. Most reduced-complexity methods in this area use the Complex-valued Minimum Mean Squared Error (CMMSE) Multiuser Detector (MUD). Since the desired output of BPSK systems is real-valued, minimizing the Mean Square Error (MSE) between the beamformer’s desired output and the real part of the beamformer output has the potential of significantly improving the attainable Bit Error Rate (BER) performance. We refer to this MMSE design as the Real-valued MMSE (RMMSE) receiver. In this paper, we explore a new Soft-Input Soft-Output (SISO) interference cancellation multiuser detection algorithm based on the novel Minimum BER (MBER) criterion. We demonstrate that the MBER turbo receiver outperforms both the CMMSE and the RMMSE algorithms, particularly in so-called ‘overloaded’ beamforming systems, where the number of receiver antennas is lower than the number of users supported

    Adaptive Minimum-BER Linear Multiuser Detection for DS-CDMA Signals in Multipath Channels

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    The problem of constructing adaptive minimum bit error rate (MBER) linear multiuser detectors is considered for direct-sequence code division multiple access (DS-CDMA) signals transmitted through multipath channels. Based on the approach of kernel density estimation for approximating the bit error rate (BER) from training data, a least mean squares (LMS) style stochastic gradient adaptive algorithm is developed for training linear multiuser detectors. Computer simulation is used to study the convergence speed and steady-state BER misadjustment of this adaptive MBER linear multiuser detector, and the results show that it outperforms an existing LMS-style adaptive MBER algorithm first presented at Globecom'98 by Yeh, Lopes and Barry

    Adaptive Minimum Bit Error Rate Beamforming

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    An adaptive beamforming technique is proposed based on directly minimizing the bit error rate. It is demonstrated that this minimum bit error rate (MBER) approach utilizes the antenna array elements more intelligently, than the standard minimum mean square error (MMSE) approach. Consequently, MBER beamforming is capable of providing significant performance gains in terms of a reduced bit error rate over MMSE beamforming. A block-data adaptive implementation of the MBER beamforming solution is developed based on the Parzen window estimate of probability density function. Furthermore, a sample-by-sample adaptive implementation is considered, and a stochastic gradient algorithm, referred to as the least bit error rate, is derived. The proposed adaptive MBER beamforming technique provides an extension to the existing work (Mulgrew and Chen 2001, Chen et al 2001} for adaptive MBER equalization and multiuser detection

    Perforator flaps for breast reconstruction/ [edited by] Joshua L. Levine, Julie Vasile, Constance M. Chen, Robert J. Allen, Sr.

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    Includes bibliographical references and index.The history of the use of perforator flaps for microsurgical breast reconstruction / Sarah E. Appleton and Steven F. Morris -- Starting a perforator flap breast program / Christina R. Vargas and Bernard T. Lee -- Essential equipment needed for perforator flap breast reconstruction and -- Operating room setup / David Greenspun -- Deep inferior epigastric perforator flap for breast reconstruction / Robert J. Allen, Sr., Constance M. Chen, and Maria M. Lotempio -- Superficial inferior epigastric artery flap for breast reconstruction / Aldona J. Spiegel -- Gluteal artery perforator flap for breast reconstruction / Richard Mahlon Kline, Jr., and James Ernest Craigie -- Profunda artery perforator flap for breast reconstruction / Robert J. Allen, Sr., Maria M. Lotempio, and Constance M. Chen -- Free lumbar artery perforator flap for autologous breast reconstruction / Koen Van Landuyt and Steven F. Morris -- Pedicled lateral thoracic flap for breast reconstruction / Moustapha Hamdi and Assaf Zeltzer -- Bipedicled (double or stacked) abdominal perforator flap in unilateral breast -- Reconstruction / Julie V. Vasile and Joshua L. Levine -- Venus salvage procedures in the deep inferior epigastric perforator flap for -- Breast reconstruction / Thomas Constantinescu and Ming-Huei Cheng -- Imaging for perforator flap breast reconstruction / Julie V. Vasile -- Lateral thigh perforator flap (septocutaneous tensor fasciae latae flap) / Stephania Tuinder, Arno Lataster, and Rene Remmelt Willie Johan van der Hulst -- Stacked diep/pap flap breast reconstruction / James L. Mayo and Robert J. Allen, Sr -- Deep circumflex iliac artery perforator flap for breast reconstruction / Edward Buchel -- Indocyanine green/spy imaging in perforator flap breast reconstruction / Michael R. Zenn.1 online resource (x, 144 pages)
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