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Symmetry, Volume 9, Issue 6

2017 June - 17 articles

Cover Story: The organocatalytic synthesis of enantiomerically-enriched (R)-modafinil, accomplished with the chiral bifunctional BINOL-phosphate was developed. In addition, the successful application of a dipeptide-based ligand in the biomimetic non-heme iron-catalyzed sulfoxidation towards (R)-modafinil is shown. The desired compound could be obtained in both cases via sulfoxidation using H2O2 as an environmentally friendly oxidant. View the paper
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Articles (17)

  • Article
  • Open Access
39 Citations
4,885 Views
12 Pages

21 June 2017

Practical decision situations are becoming increasingly complicated. It is common for a person to select or rank alternatives with respect to multiple attributes, and the TODIM (an acronym in Portuguese of interactive and multiple attribute decision...

  • Article
  • Open Access
9 Citations
4,470 Views
15 Pages

20 June 2017

The Multiple Mobile Robot (MMR) cooperative system is becoming a focus of study in various fields due to its advantages, such as high efficiency and good fault tolerance. However, the uncertainty and nonlinearity problems severely limit the cooperati...

  • Article
  • Open Access
25 Citations
8,028 Views
15 Pages

19 June 2017

Surveillance videos of coal mining faces have close relation to the safety of coal miners and mining efficiency. However, surveillance videos are always disturbed by some severe conditions such as atomization, low illumination, glare, and so on. Ther...

  • Article
  • Open Access
9 Citations
5,184 Views
20 Pages

17 June 2017

This work proposes a new and non-blind steganographic scheme for synthesized pitches. Synthesized music is popularly used to demonstrate early versions of compositions conveniently and at low-cost. They can also be utilized to pass secrets or obtain...

  • Article
  • Open Access
8 Citations
8,793 Views
9 Pages

16 June 2017

The first organocatalyzed sulfoxidation reaction towards enantioenriched (R)-modafinil (Armodafinil®), a drug against narcolepsy, is reported here. A series of chiral organocatalysts, e.g., different chiral BINOL-phosphates, or a fructose-derived N-s...

  • Article
  • Open Access
19 Citations
3,994 Views
9 Pages

16 June 2017

In this note, we discuss when the concave integral coincides with the pan- integral with respect to the standard arithmetic operations + and ·. The subadditivity of the underlying monotone measure is one sufficient condition for this equality. We sho...

  • Article
  • Open Access
2 Citations
4,291 Views
15 Pages

16 June 2017

To improve the accuracy of indoor pedestrian positioning, an indoor pedestrian positioning system with two-order Bayesian estimation based on Extended Kalman Filter (EKF) and Particle Filter (PF) is proposed in this paper. The presented system combin...

  • Article
  • Open Access
2 Citations
4,027 Views
10 Pages

16 June 2017

Searchable encryption mechanism and attribute-based encryption (ABE) are two effective tools for providing fine-grained data access control in the cloud. Researchers have also taken their advantages to present searchable encryption schemes based on A...

  • Article
  • Open Access
10 Citations
6,438 Views
22 Pages

Discrete Optimization with Fuzzy Constraints

  • Primož Jelušič and
  • Bojan Žlender

16 June 2017

The primary benefit of fuzzy systems theory is to approximate system behavior where analytic functions or numerical relations do not exist. In this paper, heuristic fuzzy rules were used with the intention of improving the performance of optimization...

  • Feature Paper
  • Article
  • Open Access
2 Citations
7,742 Views
11 Pages

14 June 2017

The POT family of proton coupled oligopeptide transporters belong to the Major Facilitator Superfamily of secondary active transporters and are found widely distributed in bacterial, plant, fungal and animal genomes. POT transporters use the inwardly...

  • Article
  • Open Access
1 Citations
5,036 Views
23 Pages

Focus Assessment Method of Gaze Tracking Camera Based on ε-Support Vector Regression

  • Duc Thien Luong,
  • Jeon Seong Kang,
  • Phong Ha Nguyen,
  • Min Beom Lee and
  • Kang Ryoung Park

14 June 2017

In order to capture an eye image of high quality in a gaze-tracking camera, an auto-focusing mechanism is used, which requires accurate focus assessment. Although there has been previous research on focus assessment in the spatial or wavelet domains,...

  • Article
  • Open Access
21 Citations
5,739 Views
9 Pages

Early- and Late-Light Embryonic Stimulation Modulates Similarly Chicks’ Ability to Filter out Distractors

  • Cinzia Chiandetti,
  • Bastien S. Lemaire,
  • Elisabetta Versace and
  • Giorgio Vallortigara

8 June 2017

Chicks (Gallus gallus) learned to run from a starting box to a target located at the end of a runway. At test, colourful and bright distractors were placed just outside the starting box. Dark incubated chicks (maintained in darkness from fertilizatio...

  • Article
  • Open Access
169 Citations
7,076 Views
11 Pages

2 June 2017

The Dombi operations of T-norm and T-conorm introduced by Dombi can have the advantage of good flexibility with the operational parameter. In existing studies, however, the Dombi operations have so far not yet been used for neutrosophic sets. To prop...

  • Article
  • Open Access
4 Citations
6,158 Views
12 Pages

2 June 2017

Rice leaves display lateral asymmetry around the midrib, and the narrow side exhibits higher leaf area-based nitrogen concentration (Na) and soil plant analysis development (SPAD) values than the wider side. However, the difference in the relationshi...

  • Article
  • Open Access
13 Citations
6,330 Views
14 Pages

Enhanced Quality of Service of Cell-Edge User by Extending Modified Largest Weighted Delay First Algorithm in LTE Networks

  • Hasibur Rashid Chayon,
  • Kaharudin Bin Dimyati,
  • Harikrishnan Ramiah and
  • Ahmed Wasif Reza

31 May 2017

Long Term Evolution (LTE) is the prominent technology in Fourth Generation (4G) communication standards, which provides higher throughput and better Quality of Service (QoS) to all users. However, users in the cell-edge area are receiving comparative...

  • Communication
  • Open Access
2 Citations
5,173 Views
12 Pages

Path Embeddings with Prescribed Edge in the Balanced Hypercube Network

  • Dan Chen,
  • Zhongzhou Lu,
  • Zebang Shen,
  • Gaofeng Zhang,
  • Chong Chen and
  • Qingguo Zhou

26 May 2017

The balanced hypercube network, which is a novel interconnection network for parallel computation and data processing, is a newly-invented variant of the hypercube. The particular feature of the balanced hypercube is that each processor has its own b...

  • Article
  • Open Access
30 Citations
4,571 Views
10 Pages

26 May 2017

The normal distribution is a usual one of various distributions in the real world. A normal neutrosophic set (NNS) is composed of both a normal fuzzy number and a neutrosophic number, which a significant tool for describing the incompleteness, indete...

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Symmetry - ISSN 2073-8994