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Applied Sciences, Volume 10, Issue 1

January-1 2020 - 424 articles

Cover Story: Tunable terahertz functional devices have exhibited superior performances due to the use of active materials, such as liquid crystals, graphene, and semiconductors. Unlike other phase change materials, vanadium dioxide (VO2) undergoes an insulator–metal phase transition, causing its conductivity to change by five orders of magnitude. This article demonstrates a terahertz active switching using hybrid VO2 metamaterials. Simulations show the highly temperature-sensitive nature of Fano resonances that can be switched at very low external thermal pumping (68 °C). The findings of this work would enable thermally-induced high-Q Fano resonance metamaterials for ultrasensitive sensors, modulators, and low threshold switching in metadevices.View this paper.
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Articles (424)

  • Article
  • Open Access
6 Citations
3,162 Views
17 Pages

Performance Analysis of Maximal Risk Evaluation Formulas for Spectrum-Based Fault Localization

  • Tingting Wu,
  • Yunwei Dong,
  • Man Fai Lau,
  • Sebastian Ng,
  • Tsong Yueh Chen and
  • Mingyue Jiang

5 January 2020

The effectiveness analysis of risk evaluation formulas has become a significant research area in spectrum-based fault localization (SBFL). The risk evaluation formula is designed and widely used to evaluate the likelihood of a program spectrum to be...

  • Article
  • Open Access
14 Citations
9,845 Views
12 Pages

A 24.88 nV/√Hz Wheatstone Bridge Readout Integrated Circuit with Chopper-Stabilized Multipath Operational Amplifier

  • Kwonsang Han,
  • Hyungseup Kim,
  • Jaesung Kim,
  • Donggeun You,
  • Hyunwoo Heo,
  • Yongsu Kwon,
  • Junghoon Lee and
  • Hyoungho Ko

5 January 2020

This paper proposes a low noise readout integrated circuit (IC) with a chopper-stabilized multipath operational amplifier suitable for a Wheatstone bridge sensor. The input voltage of the readout IC changes due to a change in input resistance, and is...

  • Article
  • Open Access
32 Citations
5,905 Views
20 Pages

Nanofiltration of Simulated Acid Mine Drainage: Effect of pH and Membrane Charge

  • Ye Wee Siew,
  • Karina Listiarini Zedda and
  • Svetlozar Velizarov

5 January 2020

Acid mine drainage (AMD) is a severe form of environmental pollution that has the potential to contaminate surface and ground waters by introducing heavy metals and lowering the pH. The feasibility of using nanofiltration (NF) as a potentially attrac...

  • Article
  • Open Access
5 Citations
4,384 Views
11 Pages

5 January 2020

The scope of our study was to analyze the impact of implant prosthetic rehabilitation, in bilateral terminal partial edentulism with mandibular bone atrophy, and potential benefits of mandibular bone augmentation through finite element analysis. A 3D...

  • Article
  • Open Access
5 Citations
3,741 Views
16 Pages

5 January 2020

Water shortage threatens agricultural sustainability in Horqin Sandy Land, northeast China. To explore the effects of various surface mulching patterns with micro-spray irrigation on the yield, water consumption (ETc), and water-saving potential of m...

  • Article
  • Open Access
21 Citations
5,843 Views
9 Pages

5 January 2020

Capacitive deionization (CDI) is a promising desalination technology because of its simple, high energy efficient, and eco-friendly process. Among several factors that can affect the desalination capacitance of CDI, wettability of the electrode is co...

  • Article
  • Open Access
4 Citations
6,567 Views
15 Pages

Quantitative Analysis of Melanosis Coli Colonic Mucosa Using Textural Patterns

  • Chung-Ming Lo,
  • Chun-Chang Chen,
  • Yu-Hsuan Yeh,
  • Chun-Chao Chang and
  • Hsing-Jung Yeh

5 January 2020

Melanosis coli (MC) is a disease related to long-term use of anthranoid laxative agents. Patients with clinical constipation or obesity are more likely to use these drugs for long periods. Moreover, patients with MC are more likely to develop polyps,...

  • Article
  • Open Access
12 Citations
3,935 Views
21 Pages

Kinetics and Optimization by Response Surface Methodology of Aerobic Bioremediation. Geoelectrical Parameter Monitoring

  • Carla Maria Raffa,
  • Fulvia Chiampo,
  • Alberto Godio,
  • Andrea Vergnano,
  • Francesca Bosco and
  • Barbara Ruffino

5 January 2020

This study aimed to investigate the kinetics of an aerobic bioremediation process of diesel oil removal by indigenous microorganisms, and to define the optimal operative conditions by means of response surface methodology. This was carried out by set...

  • Article
  • Open Access
1 Citations
2,861 Views
21 Pages

A Time Correlation Based Clustering Method for a Design of a Transformable Product

  • Jinpu Zhang,
  • Guozhong Cao,
  • Qingjin Peng,
  • Runhua Tan,
  • Huangao Zhang and
  • Wei Liu

5 January 2020

A single-function product cannot meet various needs of different users when the product user or use environment changes. A transformable product with multiple functions can meet different needs of users. It is critical to determine product functions...

  • Article
  • Open Access
7 Citations
4,567 Views
20 Pages

Enhancement of Conventional Beat Tracking System Using Teager–Kaiser Energy Operator

  • Matej Istvanek,
  • Zdenek Smekal,
  • Lubomir Spurny and
  • Jiri Mekyska

4 January 2020

Beat detection systems are widely used in the music information retrieval (MIR) research field for the computation of tempo and beat time positions in audio signals. One of the most important parts of these systems is usually onset detection. There i...

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Appl. Sci. - ISSN 2076-3417