Results 71 to 80 of about 161,361 (250)
Development and Validation of a Seismic Design Method for Anchored Retaining Walls
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT Retaining walls with multiple anchor levels are widely used as permanent excavation support systems for the construction of linear infrastructures. Yet, their seismic behaviour remains largely unexplored, and current design approaches rely on conventional procedures that do not adequately reflect the actual dynamic response of these systems ...
Luigi Callisto +2 more
wiley +1 more source
Performance Upper Bound of Adaptive QAM in Slow Rayleigh-Fading Environments
, 1996 The performance of adaptive modulation schemes that employ either no transmission, BPSK, QPSK, 16 Square QAM and 64 Square QAM is characterised for transmissions over Rayleigh channels.
J. M. Torrance +3 more
core +1 more source
Energy Science &Engineering, EarlyView.This study addresses hard roof coal seam conditions by optimizing key stratum blasting‐cutting parameters through theoretical analysis, numerical simulation, and field tests. It proposes calculation methods for blast hole spacing and delay timing based on stress wave theory, controlling roadway deformation within 35 mm, thereby enhancing resource ...
Qiong Liu, Duanxiang Fu, Hongbin Li
wiley +1 more source
INTERFERENCE REJECTION OF SIGNALS BY ADAPTIVE MINIMUM MEAN SQUARE ERROR CRITERION OVER RAYLEIGH FADING CHANNELS [PDF]
Journal of Engineering Science and Technology, 2009 Channel time-variation (or fading) is the major source of impairment in digital wireless communications. This occurs due to mobility of the user or of the objects in the propagation environment.
AMITA SONI, NEENA GUPTA
doaj
Efficient TTI for 3G Multimedia Applications
Advances in Multimedia, 2007 Time transmission interval (TTI) or outer block interleaving is an important task for the implementation of UMTS turbo coding in flat Rayleigh fading environment. An efficient TTI choice can save computational complexity.
Costas Chaikalis
doaj +1 more source
Body‐integrated photonic biosensors: Illuminating the path to active healthcare
FlexMat, EarlyView.Body‐integrated photonic biosensors are promising tools for active healthcare. These optical devices can be worn, implanted, or swallowed to monitor health signals continuously. This review introduces key sensing modalities, including fluorescence, colorimetry, SPR, LSPR, SERS, and light‐modulating materials.
Jiayue Gu +10 more
wiley +1 more source
Fundamental performance limits of CPM coded modulation system
Tongxin xuebao, 2014 The study of the capacity of CPM systems was concerned with.The definition as well as the Finite-State-Machine (FSM) model of CPM was introduced.The development of calculating the capacity of CPM over AWGN channels was first reviewed.Then this ...
Bing LI, Fan WEI, Bao-ming BAI, Xiao MA
doaj +2 more sources
On the Computation of 16-QAM and 64-QAM Performance in Rayleigh-Fading Channels
, 1992 SUMMARY 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 ...
Fortune, P.M., Steele, R., Hanzo, L.
core +1 more source
From Physiology to Bioheat Simulation: A Data‐Driven Framework for Core Temperature Initialization
Heat Transfer, EarlyView.ABSTRACT Accurate initialization of core body temperature is a critical yet often overlooked component of bioheat transfer models, particularly when such models are applied to heterogeneous populations and real‐world environmental conditions. Conventional bioheat simulations typically rely on fixed or idealized core body temperature values derived from
David S. Rodríguez +6 more
wiley +1 more source