Results 31 to 40 of about 174,030,414 (303)

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Machine learning-based intelligent localization technique for channel classification in massive MIMO

open access: yesDiscover Internet of Things
Multiple-input multiple-output (MIMO) technology has been widely adopted in wireless communications, which enables the simultaneous transmission of multiple data streams via multiple transmitting and receiving antennas.
Fadhil Ghrabat   +2 more
doaj   +1 more source

Set-based Line-of-Sight (LOS) path following with collision avoidance for underactuated unmanned surface vessel [PDF]

open access: yes2016 24th Mediterranean Conference on Control and Automation (MED), 2016
A cornerstone ability of an autonomous unmanned surface vessel (USV) is to avoid collisions with stationary obstacles and other moving vehicles while following a predefined path. USVs are typically underactuated, and this paper extends recent results in set-based guidance theory to an underactuated surface vessel, resulting in a switched guidance ...
Signe Moe, Kristin Ytterstad Pettersen
openaire   +3 more sources

Structure‐Property Relationships in Catecholamine Coatings for Broad Surface Functionalization

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by mussel adhesive proteins (MAPs), six catecholamine molecules with different molecular structure were systematically characterized and compared based on their ability to form homogeneous, reactive coatings. Highlighting candidates capable of balancing coating properties of interest, their successful use as primer layers for organic and ...
Caroline F. Harms   +5 more
wiley   +1 more source

Adaptive Observer-Based Line-of-Sight Guidance Law for Path Following of Underactuated Unmanned Surface Vehicle With Sideslip Compensation

open access: yesIEEE Access
In this paper, the path following problem of an underactuated unmanned surface vehicle (USV) in the presence of environmental disturbances is considered. To compensate for the sideslip induced by drift forces, an adaptive Kalman-like observer is proposed
Luka Martinovic   +4 more
doaj   +1 more source

Performance Analysis of Dense Small Cell Networks With Practical Antenna Heights Under Rician Fading

open access: yesIEEE Access, 2018
In this paper, we examine the combined impacts of distance-dependent Rician fading channel model and the absolute difference between the heights of base station (BS) and user equipment (UE) antennas on the coverage probability and the area spectral ...
Amir H. Jafari   +3 more
doaj   +1 more source

An Indoor Channel Model for High Data-Rate Communications in D-Band

open access: yesIEEE Access, 2020
This paper proposes a measurement based modeling of D-band indoor channels. Different indoor environments were considered including Line-of-Sight (LOS) and Non Line-of-Sight (NLOS) conditions.
L. Pometcu, R. D'Errico
doaj   +1 more source

DEC-LOS-RRT: Decentralized Path Planning for Multi-robot Systems with Line-of-sight Constrained Communication

open access: yes2021 IEEE Conference on Control Technology and Applications (CCTA), 2021
8 pages, 8 figures, Presented at CCTA ...
Victoria Tuck   +3 more
openaire   +4 more sources

A Hybrid Bioprinting–Microfabrication Approach to Controllable Multitype Spheroid Arrays for Modeling Tumor Heterogeneity

open access: yesAdvanced Healthcare Materials, EarlyView.
This work introduces a “cancer‐in‐a‐well” technology that recreates tumor heterogeneity in vitro using multitype spheroid arrays. Combining bioprinting/microdispensing with microstructured culture devices, the system improves drug screening and modeling of tumor complexity.
Simone Bonetti   +10 more
wiley   +1 more source

Finite Time Guidance Law to Intercept Desired LOS Angle Using NTSM Control [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2018
Nonsingular terminal sliding mode (NTSM) guidance for intercepting the desired line of sight (LOS) angle in terminal phase is proposed in this paper. In order to satisfy the predefined LOS angle and to intercep into target, a nonsingular terminal sliding
Vahid Behnamgol   +2 more
doaj  

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