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Symmetry, Volume 11, Issue 1

January 2019 - 122 articles

Cover Story: Though Lorentz symmetry is a founding principle of the current best theories of physics, some efforts to further unify known interactions have discovered the possibility that Lorentz symmetry might be violated in nature. In this work, we present some examples of symmetry violation in physics with an aim of making these ideas more accessible to those outside of the field. View this paper.
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Articles (122)

  • Article
  • Open Access
9 Citations
4,533 Views
14 Pages

13 January 2019

As cloud computing becomes popular, the security of users’ data is faced with a great threat, i.e., how to protect users’ privacy has become a pressing research topic. The combination of data hiding and encryption can provide dual protect...

  • Feature Paper
  • Article
  • Open Access
3 Citations
4,188 Views
45 Pages

12 January 2019

This work is the extension of author’s research, where the modified theory of induced gravity (MTIG) is proposed. The theory describes two systems (stages): Einstein (ES) and “restructuring” (RS). We consider equations with quadrati...

  • Article
  • Open Access
64 Citations
4,394 Views
15 Pages

11 January 2019

In the age of the knowledge-based economy and the rapid development of information technology, enterprise management is facing great challenges and has entered an era of prudent management. Traditional enterprise performance evaluation focuses on the...

  • Article
  • Open Access
24 Citations
3,658 Views
17 Pages

11 January 2019

In this paper, we investigate the invariant properties of the coupled time-fractional Boussinesq-Burgers system. The coupled time-fractional Boussinesq-Burgers system is established to study the fluid flow in the power system and describe the propaga...

  • Article
  • Open Access
15 Citations
6,264 Views
22 Pages

A DRDoS Detection and Defense Method Based on Deep Forest in the Big Data Environment

  • Ruomeng Xu,
  • Jieren Cheng,
  • Fengkai Wang,
  • Xiangyan Tang and
  • Jinying Xu

11 January 2019

Distributed Denial of Service (DDoS) has developed multiple variants, one of which is Distributed Reflective Denial of Service (DRDoS). With the increasing number of Internet of Things (IoT) devices, the threat of DRDoS attack is growing, and the dam...

  • Article
  • Open Access
1 Citations
4,824 Views
21 Pages

11 January 2019

A subtopic of visual secret sharing (VSS) is information hiding-based VSS (IH-VSS), which embeds secret messages into images using an information hiding technique. In the IH-VSS scheme, stego-images are divided into shadows under the guidance and con...

  • Article
  • Open Access
25 Citations
3,219 Views
9 Pages

11 January 2019

The sampling plans have been widely used for the inspection of a lot of the product. In practice, the measurement data may be imprecise, uncertain, unclear or fuzzy. When there is uncertainty in the observations, the sampling plans designed using cla...

  • Article
  • Open Access
6 Citations
3,066 Views
19 Pages

10 January 2019

The wireless channel is volatile in nature, due to various signal attenuation factors including path-loss, shadowing, and multipath fading. Existing media access control (MAC) protocols, such as the widely adopted 802.11 wireless fidelity (Wi-Fi) fam...

  • Article
  • Open Access
10 Citations
4,845 Views
13 Pages

Outage Probability Analysis in Relaying Cooperative Systems with NOMA Considering Power Splitting

  • Tran Thai Hoc Ly,
  • Hoang-Sy Nguyen,
  • Thanh-Sang Nguyen,
  • Van Van Huynh,
  • Thanh-Long Nguyen and
  • Miroslav Voznak

10 January 2019

In recent years, non-orthogonal multiple access (NOMA) has become a promising technology for the advancement of future wireless communications. In principle, the relay node with better channel conditions can support others to enhance the system perfo...

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Symmetry - ISSN 2073-8994