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Sensors, Volume 19, Issue 17

September-1 2019 - 184 articles

Cover Story: Portable laser-induced plasma spectroscopy (LIPS) is recognized as a powerful tool for addressing a large variety of elemental composition problems in situ. However, the application of the most sensitive configuration of this technique, which is based on double-pulse laser excitation (DP-LIPS), still remains confined to complex laboratory setups. Here, we demonstrated the possibility to achieve significant signal intensification and reliable quantification using a high-energy passively Q-switched Nd:YAG laser, which can emit pulses with multiple power peaks spaced at several tens of microseconds. Such an excitation source can allow compacting and reducing the costs of DP-LIPS instruments. The validation of this novel system developed was successfully carried out by investigating the alloy compositions of a bronze statuette from the Egyptian Museum of Florence. View this paper.
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Articles (184)

  • Article
  • Open Access
47 Citations
5,889 Views
10 Pages

3 September 2019

In this report, high-brightness green carbon dots were successfully prepared using 3,5-diaminobenzoic acid as the sole precursor and synthesized in one step using a solvothermal strategy. Under the excitation of 365 nm ultraviolet light, the quantum...

  • Article
  • Open Access
23 Citations
5,828 Views
17 Pages

Fusion of Enhanced and Synthetic Vision System Images for Runway and Horizon Detection

  • Ahmed F. Fadhil,
  • Raghuveer Kanneganti,
  • Lalit Gupta,
  • Henry Eberle and
  • Ravi Vaidyanathan

3 September 2019

Networked operation of unmanned air vehicles (UAVs) demands fusion of information from disparate sources for accurate flight control. In this investigation, a novel sensor fusion architecture for detecting aircraft runway and horizons as well as enha...

  • Article
  • Open Access
7 Citations
4,415 Views
17 Pages

3 September 2019

MEMS-based skin friction sensors are used to measure and validate skin friction and its distribution, and their advantages of small volume, high reliability, and low cost make them very important for vehicle design. Aiming at addressing the accuracy...

  • Article
  • Open Access
181 Citations
20,414 Views
26 Pages

Detecting Moments of Stress from Measurements of Wearable Physiological Sensors

  • Kalliopi Kyriakou,
  • Bernd Resch,
  • Günther Sagl,
  • Andreas Petutschnig,
  • Christian Werner,
  • David Niederseer,
  • Michael Liedlgruber,
  • Frank H. Wilhelm,
  • Tess Osborne and
  • Jessica Pykett

3 September 2019

There is a rich repertoire of methods for stress detection using various physiological signals and algorithms. However, there is still a gap in research efforts moving from laboratory studies to real-world settings. A small number of research has ver...

  • Review
  • Open Access
41 Citations
8,701 Views
25 Pages

3 September 2019

Surface-enhanced Raman scattering (SERS) is one of the most special and important Raman techniques. An apparent Raman signal can be observed when the target molecules are absorbed onto the surface of the SERS substrates, especially on the “hot...

  • Article
  • Open Access
17 Citations
5,379 Views
25 Pages

3 September 2019

Ground-penetrating radar (GPR) is an effective tool for subsurface detection. Due to the influence of the environment and equipment, the echoes of GPR contain significant noise. In order to suppress noise for GPR data, a method based on singular valu...

  • Review
  • Open Access
94 Citations
16,578 Views
41 Pages

Multi-Sensor Fusion for Activity Recognition—A Survey

  • Antonio A. Aguileta,
  • Ramon F. Brena,
  • Oscar Mayora,
  • Erik Molino-Minero-Re and
  • Luis A. Trejo

3 September 2019

In Ambient Intelligence (AmI), the activity a user is engaged in is an essential part of the context, so its recognition is of paramount importance for applications in areas like sports, medicine, personal safety, and so forth. The concurrent use of...

  • Article
  • Open Access
35 Citations
6,779 Views
14 Pages

3 September 2019

Deep convolutional neural networks have achieved great performance on various image restoration tasks. Specifically, the residual dense network (RDN) has achieved great results on image noise reduction by cascading multiple residual dense blocks (RDB...

  • Article
  • Open Access
29 Citations
6,646 Views
13 Pages

3 September 2019

This paper presents the first application of the Laser Doppler Vibrometer (LDV) in non-stationary conditions within a hydropower plant powerhouse. The aim of this research is to develop a methodology to include non-contact vibration monitoring as par...

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Sensors - ISSN 1424-8220