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Sensors, Volume 20, Issue 17

September-1 2020 - 360 articles

Cover Story: The Karlsruhe Tritium Neutrino experiment aims to measure the electron neutrino mass with a sensitivity of 0.2 eV/c2. It is based on the direct, model-independent method of investigating the electron energy spectrum of the tritium β-decay. We describe KATRIN’s laser Raman monitoring system, which continuously measures the composition of the gas injected into its windowless gaseous tritium source here. The gas is not isotopically pure, meaning that besides the majority component T2 all other hydrogen isotopologues (DT, D2, HT, HD, H2) are also present, albeit mostly at low concentrations. All isotopologues were monitored simultaneously, every 60 s, with a precision of 10−3 or better for individual components. This is important since the isotopic mass differences influence the β-decay kinetics, thus, affecting the systematic error in the neutrino mass determination.View this paper

Articles (360)

  • Article
  • Open Access
3,780 Views
15 Pages

3 September 2020

The Short-range-controlled communication system (RCC) based on a subscriber identity module (SIM) card is a replacement for the standard near-field communication (NFC) system to support near-field payment applications. The RCC uses both the low-frequ...

  • Article
  • Open Access
15 Citations
5,464 Views
21 Pages

3 September 2020

Classification of foot–ground contact phases, as well as the swing phase is essential in biomechanics domains where lower-limb motion analysis is required; this analysis is used for lower-limb rehabilitation, walking gait analysis and improveme...

  • Article
  • Open Access
12 Citations
6,763 Views
14 Pages

3 September 2020

Fluorescence resonance energy transfer (FRET)-based biosensors have advanced live cell imaging by dynamically visualizing molecular events with high temporal resolution. FRET-based biosensors with spectrally distinct fluorophore pairs provide clear c...

  • Article
  • Open Access
7 Citations
6,784 Views
18 Pages

3 September 2020

Lower and upper limb maximum muscular force development is an important indicator of physical capacity. Manual muscle testing, load cell coupled with a signal conditioner, and handheld dynamometry are three widely used techniques for measuring isomet...

  • Article
  • Open Access
13 Citations
3,279 Views
22 Pages

Robust Wavelength Selection Using Filter-Wrapper Method and Input Scaling on Near Infrared Spectral Data

  • Divo Dharma Silalahi,
  • Habshah Midi,
  • Jayanthi Arasan,
  • Mohd Shafie Mustafa and
  • Jean-Pierre Caliman

3 September 2020

The extraction of relevant wavelengths from a large dataset of Near Infrared Spectroscopy (NIRS) is a significant challenge in vibrational spectroscopy research. Nonetheless, this process allows the improvement in the chemical interpretability by emp...

  • Article
  • Open Access
33 Citations
5,293 Views
19 Pages

3 September 2020

Many low-cost sensors (LCSs) are distributed for air monitoring without any rigorous calibrations. This work applies machine learning with PM2.5 from Taiwan monitoring stations to conduct in-field corrections on a network of 39 PM2.5 LCSs from July 2...

  • Article
  • Open Access
47 Citations
6,250 Views
29 Pages

Empirical and Comparative Validation for a Building Energy Model Calibration Methodology

  • Vicente Gutiérrez González,
  • Germán Ramos Ruiz and
  • Carlos Fernández Bandera

3 September 2020

The digital world is spreading to all sectors of the economy, and Industry 4.0, with the digital twin, is a reality in the building sector. Energy reduction and decarbonization in buildings are urgently required. Models are the base for prediction an...

  • Article
  • Open Access
10 Citations
3,779 Views
19 Pages

3 September 2020

In the process of fault diagnosis and the health and safety operation evaluation of modern industrial processes, it is crucial to measure important state variables, which cannot be directly detected due to limitations of economy, technology, environm...

  • Letter
  • Open Access
13 Citations
4,923 Views
17 Pages

3 September 2020

In order to analyze the complex interactive behaviors between the robot and two humans, this paper presents an adaptive optimal control framework for human-robot-human physical interaction. N-player linear quadratic differential game theory is used t...

  • Article
  • Open Access
6 Citations
3,385 Views
18 Pages

3 September 2020

The aim of this research was to produce a new methodology for a special river bottom hazard mapping for the stability purposes of the biggest Polish water power plant: Włocławek. During the operation period of the water power plant, an engineering-ge...

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Sensors - ISSN 1424-8220