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Symmetry, Volume 10, Issue 2

2018 February - 19 articles

Cover Story: The Casimir interaction energy between two compact objects is considered in the framework of the scattering theory. Dissipation, represented by red wavy lines in the figure above, is fully considered in the scattering properties of each object as well as in the propagation through the intervening medium. The casimir interaction energy is expressed in terms of the scattering operator of the whole system.
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Articles (19)

  • Article
  • Open Access
29 Citations
3,827 Views
15 Pages

22 February 2018

This paper aims at developing new methods for multi-attribute decision making (MADM) under a single-valued neutrosophic hesitant fuzzy environment, in which each element has sets of possible values designed by truth, indeterminacy, and falsity member...

  • Article
  • Open Access
141 Citations
7,696 Views
21 Pages

Social Group Optimization Supported Segmentation and Evaluation of Skin Melanoma Images

  • Nilanjan Dey,
  • Venkatesan Rajinikanth,
  • Amira S. Ashour and
  • João Manuel R. S. Tavares

22 February 2018

The segmentation of medical images by computational methods has been claimed by the medical community, which has promoted the development of several algorithms regarding different tissues, organs and imaging modalities. Nowadays, skin melanoma is one...

  • Article
  • Open Access
2 Citations
4,416 Views
10 Pages

15 February 2018

To exploit the influence of the tunnel face and the distance between the diameter and the orifice of a blast pipe on the ventilation effect in symmetric tunnel construction, this paper uses Fluent to establish a three-dimensional model and numerical...

  • Article
  • Open Access
23 Citations
5,009 Views
22 Pages

14 February 2018

Intelligent cooperative multiagent systems are applied for solving a large range of real-life problems, including in domains like biology and healthcare. There are very few metrics able to make an effective measure of the machine intelligence quotien...

  • Article
  • Open Access
148 Citations
15,589 Views
28 Pages

A Hybrid MCDM Technique for Risk Management in Construction Projects

  • Kajal Chatterjee,
  • Edmundas Kazimieras Zavadskas,
  • Jolanta Tamošaitienė,
  • Krishnendu Adhikary and
  • Samarjit Kar

13 February 2018

Multi-stakeholder based construction projects are subject to potential risk factors due to dynamic business environment and stakeholders’ lack of knowledge. When solving project management tasks, it is necessary to quantify the main risk indicators o...

  • Feature Paper
  • Article
  • Open Access
34 Citations
6,036 Views
14 Pages

Data Hiding Based on a Two-Layer Turtle Shell Matrix

  • Xiao-Zhu Xie,
  • Chia-Chen Lin and
  • Chin-Chen Chang

13 February 2018

Data hiding is a technology that embeds data into a cover carrier in an imperceptible way while still allowing the hidden data to be extracted accurately from the stego-carrier, which is one important branch of computer science and has drawn attentio...

  • Article
  • Open Access
4 Citations
4,336 Views
13 Pages

12 February 2018

As shown in former papers, the nonadiabatic Heisenberg model presents a mechanism of Cooper pair formation generated by the strongly correlated atomic-like motion of the electrons in narrow, roughly half-filled “superconducting bands” of special symm...

  • Article
  • Open Access
103 Citations
8,191 Views
31 Pages

12 February 2018

The beginning of the 21st-century resulted in a more developed multi-attribute decision-making (MADM) tool and inspired new application areas that have resulted in discoveries in sustainable construction and building life cycle analysis. Construction...

  • Article
  • Open Access
13 Citations
3,986 Views
23 Pages

10 February 2018

A new enhanced matrix power function (MPF) is presented for the construction of cryptographic primitives. According to the definition in previously published papers, an MPF is an action of two matrices powering some base matrix on the left and right....

  • Article
  • Open Access
13 Citations
3,871 Views
21 Pages

8 February 2018

In this paper, the solution of fuzzy differential equations is approximated numerically using diagonally implicit multistep block method of order four. The multistep block method is well known as an efficient and accurate method for solving ordinary...

  • Article
  • Open Access
1 Citations
3,997 Views
15 Pages

3 February 2018

Lie symmetry classification of the diffusive Lotka–Volterra system with time-dependent coefficients in the case of a single space variable is studied. A set of such symmetries in an explicit form is constructed. A nontrivial ansatz reducing the Lotka...

  • Article
  • Open Access
11 Citations
3,668 Views
15 Pages

30 January 2018

The aggregation operator is a potential tool to fuse the information derived from multisources, which has been applied in group decision, combination classification and scheduling clusters successfully. To better characterize complex decision situati...

  • Feature Paper
  • Article
  • Open Access
6 Citations
4,330 Views
11 Pages

Accounting for Dissipation in the Scattering Approach to the Casimir Energy

  • Romain Guérout,
  • Gert-Ludwig Ingold,
  • Astrid Lambrecht and
  • Serge Reynaud

26 January 2018

We take dissipation into account in the derivation of the Casimir energy formula between two objects placed in a surrounding medium. The dissipation channels are considered explicitly in order to take advantage of the unitarity of the full scattering...

  • Article
  • Open Access
13 Citations
4,360 Views
20 Pages

26 January 2018

The Casimir effect for a scalar field in presence of delta-type potentials has been investigated for a long time in the case of surface delta functions, modelling semi-transparent boundaries. More recently Albeverio, Cacciapuoti, Cognola, Spreafico a...

  • Article
  • Open Access
37 Citations
6,773 Views
18 Pages

25 January 2018

In this paper, an efficient data hiding method that embeds data into absolute moment block truncation coding (AMBTC) codes is proposed. The AMBTC method represents image blocks by trios, and each trio consists of two quantization levels and an asymme...

  • Review
  • Open Access
14 Citations
10,422 Views
75 Pages

Chiral Heterocycle-Based Receptors for Enantioselective Recognition

  • Vaibhav N. Khose,
  • Marina E. John,
  • Anita D. Pandey,
  • Victor Borovkov and
  • Anil V. Karnik

24 January 2018

The majority of biomolecules found in living beings are chiral, therefore chiral molecular recognition in living systems is crucial to life. Following Cram’s seminal work on the crown-based chiral recognition, prominent research groups have reported...

  • Feature Paper
  • Article
  • Open Access
5 Citations
6,223 Views
13 Pages

24 January 2018

A description of the 11 well-known uninodal planar nets is given by Cayley color graphs or alternative Cayley color graphs of plane groups. By applying methods from topological graph theory, the nets are derived from the bouquet B n with rota...

  • Article
  • Open Access
6 Citations
6,824 Views
13 Pages

Three-Dimensional Finite Element Analysis of Maxillary Sinus Floor Augmentation with Optimal Positioning of a Bone Graft Block

  • Peter Schuller-Götzburg,
  • Thomas Forte,
  • Werner Pomwenger,
  • Alexander Petutschnigg,
  • Franz Watzinger and
  • Karl Entacher

23 January 2018

Purpose: the aim of the computational 3D-finite element study is to evaluate the influence of an augmented sinus lift with additional inserted bone grafting. The bone graft block stabilizes the implant in conjunction with conventional bone augmentati...

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Symmetry - ISSN 2073-8994