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We present the Lie point symmetries admitted by third order partial differential equations (PDEs) which model the pressure of a visco-elastic liquid with relaxation which filtrates through a porous medium. The symmetries are used to construct reductions of the PDEs to ordinary differential equations...

As reflected by the TOP500 list, hypercubes are popular interconnection networks for massively parallel systems, the main reason being the simplicity and ease of implementation of this network topology. In order to retain performance high and avoid bottleneck situation, routing algorithms are critical...

There is a need for more understanding of the technology in Big Data and researching key challenges from the information technology perspective. In this paper, we study the current status, challenges/issues and emerging trends in Big Data. We present key findings and unfolding landscape of technology....

We describe the derivation of a formalism in the context of the governing equations for two-dimensional water waves propagating over a flat bed in a flow with non-vanishing vorticity. This consists in providing a Hamiltonian structure in terms of two variables which are scalar functions.

The Hilbert space representations of a class of commutation relations associated with a Möbius transformation is studied using results on convergence of continued fractions.

Analyzing the spectrum of the Schrödinger-Pauli Hamiltonian for a particle of spin s > 1/2 we find that some energy levels are degenerated while the other are not. We investigate the symmetry (which is neither super- nor parasymmetry) causing this specific degeneration.

Text summarization is a process of distilling the most important content from text documents. While human beings have proven to be extremely capable summarizers, computer based automatic abstracting and summarizing has proven to be extremely challenging tasks. In this paper we report our experience with...

Complex phenomena are perceived from different perspectives, diversified conceptual points of view and at various levels of granularity. Symbolic and sub-symbolic processing becomes an inherently visible computing practice. Distributed nature of perception becomes reflected in topologies of multi-agent...

The novel Coronavirus Disease 2019 (COVID-19) remains a worldwide threat to community health, social stability, and economic development. Since the first case was recorded on December 29, 2019, in Wuhan of China, the disease has rapidly extended to other nations of the world to claim many lives, especially...

Present risk assessment methods so far were majorly based on the primary knowledge and were incapable of combining uncertainty into risk assessment outputs. In order to solve this problem, a new methodology for risk assessment using constrained-random weight method and cloud model is introduced here...

This paper considers robust containment control problem for uncertain multi-agent systems with inherent nonlinear dynamics. A distributed protocol is proposed using local delayed state information, and then the original problem is converted into an H_∞ control problem by defining an appropriate controlled...

To lay the groundwork for understanding the impact of web based support resources use on cancer affected people and devising plans for taking advantage of rapid development of internet technology for health purposes we conducted a systematic literature review. Studies published between 1993 and 2014...

Faced to the weakness of the low efficiency and limitation of the recent search and rescue robot, this paper presents a visualized search and rescue robot based on the Arduino platform. The infrared detector is used to detect life, and the camera can transmit the information back to the mobile phone...

Bäcklund transformations, which are relations among solutions of partial differential equations­usually nonlinear­have been found and applied mainly for systems with two independent variables. A few are known for equations like the Kadomtsev-Petviashvili equation [1], which has three independent variables,...

Crop’s risk assessment induced by natural disasters needs to develop in the fine scale. It is required that risk assessment can be performed on county-level space scale and month-based time scale. But with the thinning of space and time scales, disaster samples would decline greatly and severely limit...

In Japan, sports efforts are actively being carried out to host the 2020 Olympic Games. Especially in the field of sports science, researches on ergonomics, development of sports equipment and pattern recognition technology using artificial intelligence are actively researched. In previous research,...

Objective: Despite the widespread awareness of the harms of smoking, millions continue to smoke around the world partly due to the difficulty it takes to quit smoking. Identifying the factors associated with making quit attempts is an essential pillar to reach successful quitting. The purpose of this...

Aim: This study sought to determine knowledge of and attitude towards human papillomavirus (HPV) infection, HPV-related diseases and HPV vaccines among female undergraduate students at the University of Lagos. Methods: A self-administered questionnaire was administered between May and July 2010, to...

We have developed a real-time system for expressing emotion as a portrait selected according to the facial expression while writing a message. The portrait is decided by a hair style, a facial outline, and a cartoon of facial expression. The image signal is analyzed by the system using image processing...

Traditional medicine which is based on the observations of the patient’s condition after administration of herbal remedies describes a vast number of plant species with potential application in Tuberculosis (TB) treatment. However, only a small number of plant derived secondary metabolites were shown...

This study aims to explore the impact of the integration of computer-assisted language learning into traditional face-to-face English course on the learning effectiveness at Junior college in Taiwan. To achieve the above purpose, this study adopts the pre-experimental design with one-group pretest–posttest...

COVID-19 is an infectious disease caused by severe acute respiratory syndrome (SARS)-CoV-2 virus. So far, more than 20 million people have been infected. With the rapid spread of COVID-19 in the world, most countries are facing the shortage of medical resources. As the most extensive detection technology...

In this paper, we present all constant solutions of the Yang-Mills equations with SU(2) gauge symmetry for an arbitrary constant non-Abelian current in Euclidean space ℝn of arbitrary finite dimension n. Using the invariance of the Yang-Mills equations under the orthogonal transformations of coordinates...

We consider the Hamiltonian function defined by the cubic polynomial H=12(px2+py2)+12(x2+y2)+A3x3+Bxy2+Dx2y , where A, B, D ∈ ℝ are parameters and so H is an extension of the well known Hénon-Heiles problem. Our main contribution for D ≠ 0, A + B ≠ 0 and other technical restrictions are in three...

In this article, we consider a measure of inaccuracy between distributions of the i-th order statistics and parent random variable. It is shown that the inaccuracy measure characterizes the distribution function of parent random variable uniquely. We also discuss some properties of the proposed measure.

The paper focuses on the development of a wheeled intelligent robot that could be applied in hospitals or nursing homes for medical assistance. It includes two microcontrollers, MC9S12XS128 and STC89C52. The program is basically achieved on CodeWarrior 5.0, Keil ?Vision4 with the OpenCV library, porting...

In this paper the system considered consists of two subsystems A and B. Subsystem A has only one unit whereas subsystem B consists of two homogeneous units B1 and B2. Here B2 is in hot standby with B1. In the present study we have incorporated two repairmen namely supervisor and novice to repair the...

We study the problem of non-integrability (integrability) of cosmological dynamcal systems which are given in the Hamiltonian form with indefinite kinetic energy form T = 1 2 g(v, v), where g is a two-dimensional pseudo-Riemannian metric with a Lorentzian signature (+, -), and v TxM is a tangent vector...