Showing 2,081 - 2,100 results of 6,833 for search '"modulation"', query time: 0.07s Refine Results
  1. 2081

    Channel modeling and testing of wireless transmission for underground in-pipe leak and material loss detection by S Mekid, D Wu, R Hussain, K Youcef-Toumi

    Published 2017-11-01
    “…The purpose of this work is to characterize the radio transmission between underground buried pipes and base station using multi-layer media including both theoretical and experimental approaches by utilizing various modulation schemes. The objective is to identify the range of operating communication frequencies having lower energy loss, lower resulting bit error rate, and the power needed to transfer packets designed to carry data through the media. …”
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  2. 2082

    Beam Shaping by Mode Superposition With Coefficient Optimization by Guowen Zhang, Hang Sun, Ziyang Chen, Yanli Zhang, Jixiong Pu, Jianqiang Zhu

    Published 2024-01-01
    “…In this study, we validate the feasibility of the beam patterns modulation by optimizing the coefficients of the superimposed modes using an optimization algorithm. …”
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  3. 2083

    Localization of Presynaptic Plasticity Mechanisms Enables Functional Independence of Synaptic and Ectopic Transmission in the Cerebellum by Katharine L. Dobson, Tomas C. Bellamy

    Published 2015-01-01
    “…The results suggest that the signalling mechanisms for presynaptic LTP and retrograde depression by endocannabinoids are restricted to the active zone at parallel fibre synapses, allowing independent modulation of synaptic transmission to Purkinje neurons and ectopic transmission to Bergmann glia.…”
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  4. 2084

    Design and Characteristic Analysis of Multicarrier Chaotic Phase Coded Radar Pulse Train Signal by Qiongdan Huang, Yong Li, Yaoping Zeng, Yinjuan Fu

    Published 2014-01-01
    “…In addition, we analyze the influences of subcarrier number, phase-modulated bit number, and period number on the pulse train’s autocorrelation performance. …”
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  5. 2085

    SENSITIVITY ANALYSIS OF AVALANCHE PHOTODIODE AND PIN DIODE DETECTORS IN OPTICAL RECEIVERS by ELECHI PROMISE, ORIKE SUNNY, MINAH-EEBA WINNER, EZINNE IKPO CHIKERENMA

    Published 2018-12-01
    “…The design parameters which were taken into consideration were a constricted transmitter, Zender modulator, attenuator, lowpass Bessel filter, Non-Return-to-Zero modulation format, CW laser, avalanche photodiode (APD) and PIN diode detectors and the type of network coding, Bit Error Rate Analyzer (BER) etc. …”
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  6. 2086

    Ultrasmall Dual-Band Metamaterial Antennas Based on Asymmetrical Hybrid Resonators by Ji-Xu Zhu, Peng Bai, Jia-Fu Wang

    Published 2016-01-01
    “…The resonant model consists of a right hand (RH) patch part and a composite right and left handed (CRLH) part (RH + CRLH), which determines a compact size and also a convenient frequency modulation characteristic for the proposed antennas. …”
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  7. 2087

    Complex regulation of Cav2.2 N-type Ca2+ channels by Ca2+ and G-proteins. by Jessica R Thomas, Jinglang Sun, Juan De la Rosa Vazquez, Amy Lee

    Published 2025-01-01
    “…Studies of these forms of regulation generally employ Ba2+ as the permeant ion, despite that Ca2+ -dependent pathways may impinge upon G-protein modulation. To address this possibility, we compared tonic G-protein inhibition of currents carried by Ba2+ (IBa) and Ca2+ (ICa) in HEK293T cells transfected with Cav2.2. …”
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  8. 2088

    A Power-Efficient Soft-Output Detector for Spatial-Multiplexing MIMO Communications by Hsiao-Chi Wang, Tung-Lin Liu, Yuan-Wei Wu, Hsi-Pin Ma

    Published 2012-01-01
    “…VLSI implementation of a configurable power-efficient MIMO detector is proposed to support 4×4 spatial multiplexing and modulation from QPSK to 64-QAM. A novel tree search algorithm is proposed to enable the detector to provide soft outputs and to be implemented in parallel and pipelined hardware architecture. …”
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  9. 2089

    Roles of Brain Angiotensin II in Cognitive Function and Dementia by Masaki Mogi, Jun Iwanami, Masatsugu Horiuchi

    Published 2012-01-01
    “…Here, we also review the effect of the AT2 receptor on cognitive function. RAS modulation may be a new therapeutic option for dementia including AD in the future.…”
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  10. 2090

    BER Performance of Stratified ACO-OFDM for Optical Wireless Communications over Multipath Channel by Zelalem Hailu Gebeyehu, Philip Kibet Langat, Ciira Wa Maina

    Published 2018-01-01
    “…In intensity modulation/direct detection- (IM/DD-) based optical OFDM systems, the requirement of the input signal to be real and positive unipolar imposes a reduction of system performances. …”
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  11. 2091

    Motor Control and Neural Plasticity through Interhemispheric Interactions by Naoyuki Takeuchi, Yutaka Oouchida, Shin-Ichi Izumi

    Published 2012-01-01
    “…Recently, these brain stimulation techniques were applied in the clinical rehabilitation of patients with stroke by ameliorating the deteriorated modulation of interhemispheric interactions. Here, we review the interhemispheric interactions and mechanisms underlying the pathogenesis of these interactions and propose rehabilitative approaches for appropriate cortical reorganization.…”
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  12. 2092

    Autophagy in Immune-Related Renal Disease by Xin Ye, Xu-jie Zhou, Hong Zhang

    Published 2019-01-01
    “…The understanding of the pathogenesis and regulatory mechanisms of autophagy in these renal diseases may lead to the identification of new diagnostic targets and refined therapeutic modulation.…”
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  13. 2093

    Improved Training Sequence Channel Estimation Scheme in 16QAM MB-OFDM UWBoF System by Changqing Xiang, Xi Yang, Xuan Zhou, Xiaojun Zhu, Jincan Xu, Qiong He

    Published 2020-01-01
    “…In this paper, an improved channel estimation scheme based on time-domain orthogonal gray complementary training sequence (Golay TS) is proposed to resist subcarrier mutual beat interference in 16-quadrature amplitude modulation multiband orthogonal-frequency-division-multiplexing ultrawide band over fiber (16QAM MB-OFDM UWBoF) systems. …”
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  14. 2094

    A New Cooperative MIMO Scheme Based on SM for Energy-Efficiency Improvement in Wireless Sensor Network by Yuyang Peng, Jaeho Choi

    Published 2014-01-01
    “…In this paper, a new CMIMO scheme based on the spatial modulation (SM) technique named CMIMO-SM is proposed for energy-efficiency improvement. …”
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  15. 2095

    A Computational Model of Hybrid Trunk-like Robots for Synergy Formation in Anticipation of Physical Interaction by Pietro Morasso

    Published 2025-01-01
    “…The PMP model is force-based, not motion-based, and it is characterized by two main computational modules: the Jacobian matrix of the hybrid kinematic chain and a compliance matrix that maps generalized force fields into coordinated gestures of the whole-body model. …”
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  16. 2096

    A novel multifunctional chiral metasurface with asymmetric transmission by Muhammad Noman, Hattan Abutarboush, Farooq A. Tahir, Adnan Zahid, Muhammad Imran, Qammer H. Abbasi

    Published 2024-10-01
    “…The multiband, multifunctional chiral metasurface with asymmetric transmission exhibits significant potential for diverse applications in modern communication systems, ranging from enhanced signal modulation and polarization control to advanced beam steering and compact antenna design. …”
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  17. 2097

    Multiantenna Analog Network Coding for Multihop Wireless Networks by Ramesh Annavajjala, Amine Maaref, Jinyun Zhang

    Published 2010-01-01
    “…The proposed protocol extends upon the so-called analog network coding schemes in the literature in that it inherently exploits the multiple antennas at the relay station to reduce the noise enhancement typical of an AF protocol, and can also compensate for link imbalances between the relay and the sources and is agnostic to sources' modulation and coding schemes. We derive the instantaneous signal-to-noise ratio expressions for the received signal by the sources in the downlink and provide extensive link-level simulations for the MMSE-BAF protocol subject to both frequency flat and selective fading. …”
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  18. 2098

    Minimal state models for ionic channels involved in glucagon secretion by Virginia González-Vélez, Amparo Gil, Iván Quesada

    Published 2010-09-01
    “…Then, we simulate dynamic ionic currents following experimental protocols.Our aims are 1) To understand the individual ionic channel functioning and modulation that could affect glucagon secretion, and 2) To simulate ionic currents actually measured in voltage-clamp alpha-cell experiments in mice.Our estimations indicate that alpha cells are highly permeable to sodium and potassium which mainly manage action potentials. …”
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  19. 2099

    ESC PWM Fullbridge Motor DC Berbasis Arduino by budi pramono jati, Jenny Putri Hapsari

    Published 2025-01-01
    “…To overcome this, the motor voltage is regulated using Pulse Wide Modulation (PWM). PWM works by changing the duty cycle of the voltage in the form of pulses so that the average voltage can be changed. …”
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  20. 2100

    Role of Myokines in Myositis Pathogenesis and Their Potential to be New Therapeutic Targets in Idiopathic Inflammatory Myopathies by Vlad Mageriu, Emilia Manole, Alexandra E. Bastian, Florica Staniceanu

    Published 2020-01-01
    “…Some muscle cytokines, through their antagonistic action, may be a helpful contributor to the disease modulation, and thus, they could represent personalized treatment targets. …”
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