Results 41 to 50 of about 951,439 (281)
Volatile-Rich Circumstellar Gas in the Unusual 49 Ceti Debris Disk
, 2014 We present Hubble Space Telescope STIS far-UV spectra of the edge-on disk around 49 Ceti, one of the very few debris disks showing sub-mm CO emission.
Grady, Carol A. +4 more
core +1 more source
Indoor wireless channel modeling from 2.4 to 24 GHz using a combined E/H-Plane 2D ray tracing method [PDF]
, 2004 Future wireless systems are moving to high frequencies for additional bandwidth and frequency reuse. This makes it very important to have accurate and time-efficient models for system planning.
Lu, Dai, Rutledge, David
core +1 more source
Empowering IoT: leveraging data sensor communication with LoRAWAN in diverse environments
Acta PolytechnicaThe Internet of Things (IoT) connects countless devices, such as sensors and actuators, necessitating an efficient long-range communication technology.
Noprianto Noprianto +4 more
doaj +1 more source
Semi-Definite Programming Relaxation for Non-Line-of-Sight Localization
, 2012 We consider the problem of estimating the locations of a set of points in a k-dimensional euclidean space given a subset of the pairwise distance measurements between the points.
Ekambaram, Venkatesan +2 more
core +1 more source
Dapagliflozin prevents methylglyoxal‐induced retinal cell death in ARPE‐19 cells
FEBS Open Bio, EarlyView.Diabetic macular oedema is a diabetes complication of the eye, which may lead to permanent blindness. ARPE‐19 are human retinal cells used to study retinal diseases and potential therapeutics. Methylglyoxal is a compound increased in uncontrolled diabetes due to elevated blood glucose.
Naina Trivedi +7 more
wiley +1 more source
UWB Indoor Localization Based on Artificial Rabbit Optimization Algorithm and BP Neural Network
BiomimeticsIn the field of ultra-wideband (UWB) indoor localization, traditional backpropagation neural networks (BPNNs) are limited by their susceptibility to local minima, which restricts their ability to achieve global optimization.
Chaochuan Jia +5 more
doaj +1 more source
, 2007 We present a novel approach for simultaneous extraction of stellar population parameters and internal kinematics from the spectra integrated along a line of sight.
Chilingarian, Igor +3 more
core +1 more source
Energy efficiency of some non-cooperative, cooperative and hybrid communication schemes in multi-relay WSNs [PDF]
, 2013 In this paper we analyze the energy efficiency of single-hop, multi-hop, cooperative selective decode-and-forward, cooperative incremental decode-and-forward, and even the combination of cooperative and non-cooperative schemes, in wireless sensor ...
Brante, Glauber +4 more
core +1 more source
Process‐Informed Analysis of As‐Built Metal Additive Surface Features
Advanced Engineering Materials, EarlyView.This article introduces a novel method for feature‐based surface texture characterisation directly incorporating manufacturing variables into the feature extraction workflow. This marks a major step towards identifying process‐specific surface properties and their influence on part function and hence a holistic understanding of process–structure ...
Theresa Buchenau +5 more
wiley +1 more source
IEEE Photonics Journal, 2021 The non-line-of-sight (NLOS) underwater communication can offer a viable route in signal propagation and coverage, thus mitigating the pointing, acquisition, and tracking difficulties in line-of-sight optical communication. However, implementing the NLOS
Mohammed Sait +5 more
doaj +1 more source