Transactions on Engineering and Computer Science

At present, oil production is characterized by the increased development of new deposits with poor reservoir properties. All of this is leading to the application of ESP units with low capacity and high head in oil production. At some oil-production enterprises, the number of wells equipped with low-capacity ESP units can account for more than half of the existing stock. Moreover, low-capacity ESP units provide for the bulk of oil production. The operation of such ESP units in oil production results in complications associated with the unit’s parameters or the properties of high-pressure product water. To date, over twenty techniques have been developed for estimating the condition of product water, and measures have been taken to control the related complications. One of these measures involves reinforcement of the ESP unit’s cable line and downhole motor. Increasing the thermal strength of the cable line being used as part of the ESP unit reduces the number of electrical failures (R-0) of the equipment. However, the operation of a centrifugal pump at high temperatures leads to salt deposition inside the pump’s internal components. The theory and practice of salt deposition control, as developed by the author of this paper, is described in many works and monographs. It was a theoretically demonstrated that the operation of a low-capacity ESP unit is always accompanied by a temperature rise of the downhole motor and centrifugal pump. A downhole motor with a greater diameter than the centrifugal pump always participates in contact heat exchange with the production string; hence, its temperature is only slightly dependent on the properties of the pumped gas-liquid mixture. The centrifugal pump is the focus of the study of the ESP unit’s thermal behavior. During the pumping of complex mixtures, the centrifugal pump is always impacted by high temperatures. The main point discussed in the aforementioned works deals with identifying the thermal behavior of a centrifugal pump as a function of formation-fluid properties and the parameters of the pump itself. The study of the pump’s temperature as a function of the properties of the pumped gasliquid mixture allows us to solve two major problems: 1) complications during the low-capacity ESP unit’s operation; 2) automation of the centrifugal pump’s control. ESP unit automation will open up the possibility of developing clean oilproduction technology and a transition to “digital oil fields.”

In this article, Vortex Search Algorithm (VSA) has been applied to solve the optimal reactive power problem. It is one of the newly projected metaheuristic algorithms which were stimulated from the vertical flow of the stimulated fluids. By using an adaptive step-size adjustment scheme vortex pattern is modelled to do the explore behaviour in VSA. An adaptive step-size modification scheme used in the projected algorithm, the position of the produced candidate solutions is amplified at each iteration. Projected Vortex Search Algorithm has been tested in standard IEEE 14, 57, 300 bus systems and Simulations results show the better performance of the proposed Vortex Search Algorithm (VSA) in reducing the real power loss.

Encryption is the process of converting the initial text into different text expression, whereby it could protect the original text from exposed to an unauthorized entity. Most of the software-based system would implement the mechanism so that it could protect the data. The need for understanding the variety encryption and their related concepts seems vital as it helps developer to produce better technique and design of encryption, and one of it is string manipulation. In addition, more variety of design could be tested rigorously so that it would might produce relevant important findings for group of people who involved in software security either directly or indirectly, by knowing the possible limitations and advantages in any particular designs. In this research experiment, a light string manipulation module are developed using scripting language of both Hypertext Preprocessor (PHP) and Hypertext Markup Language (HTML).

In this article Moth Search Algorithm (MSA) and Intermingled algorithm (IA) is proposed to solve optimal reactive power problem. Moths are associated in to the order Lepidoptera. Amongst the characteristics of moths, the phototaxis and Levy flights are main features. Phototaxis and Levy flights of moths are used for formulating the algorithm. Moth will impulsively be inclined to do in most excellent mode to regulate the flight orientation such that it moves towards the light source but be the for source for flying moths that tumbling downward. In this article Intermittent search strategy, Eagle strategy, and Flower pollination algorithm has been combined (called as intermingled algorithm) to solve the optimal reactive power problem. At first in the exploration stage Intermittent search strategy is utilized then Eagle strategy is combined; first stage it does the exploration and latter it will do exploitation. Finally, Flower pollination algorithm is utilized to upgrade the process of the algorithm. Proposed Moth Search Algorithm (MSA) and Intermingled algorithm (IA) has been tested in standard IEEE 14, 30 bus test systems and simulation results show the projected algorithms reduced the real power loss efficiently.

In this article, we address the divergence theory and practice related to mixed-criticality systems (MCSs) for real-time scheduling from an industry perspective. We identify the practical problems in consideration of design aspects, such as time partitions, the decomposition of tasks, degradation scenarios, fault handling for safety, and criticality mode of MCS. The identified problems in design will induce theoretical limitations and difficulties for adopting prior works to practice. In prior works, criticality modes were viewed as equivalent to the assurance levels; however, these assumptions seem to be too simplified for studies far from practice. They may lead to solutions for real-time scheduling in MCS going in different directions that are highly divergent from the real-world situation. Hence, we propose new models for MCS that are closer to practice. Here, criticality modes are separate from the assurance levels of tasks since the criticality modes exist for degradation or safety scenarios, whereas the assurance levels of tasks, hardware, and software components exist to represent reliability for requirements, designs, verifications, and validations. Based on the newly proposed system models, we will show a way of extending prior works with the proposed mode-based priority protocol for real-time MCSs. The proposed mode-based protocol is easily implanted with existing real-time schedulers or the Automotive Open System Architecture platform.

This article discusses the production of fancy yarns on a ring spinning machine by installing the special pressure rollers on the drafting rollers. Recommendations for adjusting the load of exhaust devices to reduce breakage are indicated. The dynamics of uneven rolling motion of a non-cylindrical roller along the cylinder is considered.

Detection of face and its recognition in the field of pattern recognition and computer vision has gained an increasing interest over recent decades. It is because of its many applications in a variety of fields such as security systems, videoconferencing, and identity verification. But, for machines like computer, it is very difficult to make distinguish between the faces of different kinds and recognizing them. The objective of this paper is to introduce the Neural Network based algorithm that simplifies the task of recognizing and detecting face. Under Neural Network, this paper has focused on implementation of Haar Filter to detect the face in the captured face image. Also, this paper explains artificial neural network approach in combination with PCA algorithm for recognition of human face. Mapping of Haar filter in face image extracts the facial information and with that facial information, Eigen Face Vector is produced. Then a matching technique is applied to find a match between the new face and all the known faces in the database. And the result of comparison distinguishes any face to be known or unknown.

This is a briefest possible introduction to the absolute geometry of space, time, and matter. Absolute geometry or the post-Euclidean geometry does automatically lead to the superunified theory of quantized fields and fundamental interactions. In general, we have eventually constructed the ultimate system of universal mathematical harmony observed by us as the physical Universe. No work in theoretical physics and pure mathematics directly precedes to this theory we propose. Instead, it accomplishes original Pythagorean (arithmetisation) and Platonic (geometrization) concepts of natural philosophy integrated afterwards by Jiordano Bruno.

It is known the Classic Field Theory describes a field that is spreading by constant velocity. But in nature they prevail movements with variable rate. This report offers using new type of field– accelerating field. The accelerating field suck in free cross vortices (named “free energy“) from environment. It acts through Positive Feedback that turns acceleration process to a generation process. The accelerating (decelerating) field was described in previous articles and reports. The Positive Feedback not only preserves internal energy of input signal, but multiplies it, at the expense of sucking and accelerating the energy of the environment. That is the reason an acceleration process to turn to generation process. The technical generation of this accelerating field is very complicated for now. That is way it is necessary to imitate it using our well-known Electromagnetic field. The secret is in very unique shape of the electrical signal (in input to the antenna). It is imitated by shrinking sharply the signal of Electromagnetic field that sucks the free cross vortices from the environment. The purpose of the proposed development is not to describe a finished design of the generator, but to describe only the principle and logic of such an engine. The similar approach was used by Nikola Tesla (1931) in the creation of “free energy” generator that was installed in “Pierce –Arrow Corporation” car instead of previous gasoline engine. He could run without fuel and it needed of battery as accumulator only at startup.

The paper is an attempt to give physical explanations for the causes of electrostatic, gravitational and inertial forces. This is done by considering an electric charge, of magnitude Q, as an impregnable spherical shell, with its radial field pulling the surface, equally outwards. A stable structure, such as an electron, is maintained with constant radius a, energy En and mass m. It is proposed that the electrostatic field lines of force from adjacent charges, Q and K, are curved to give a resultant pulling force of repulsion or attraction. The electric field due to charge Q, at the location of another charge K, and the field due to K at Q, are curved, becoming slightly reduced for force of repulsion and similarly increased for force of attraction, to make for a net gravitational force of attraction. A charge Q moving at a constant velocity v bears its radial electrostatic field Eo, without distortin. But, due to the finite speed of light c, change in velocity of Q is not instantaneously communicated to all the fields. Consequently, the lateral field lines become curved, to create a reactive electric field Ea opposed to acceleration. The field Ea is supposed to act at time t, on the charge Q, to create the inertial force QEa = -m(dv/dt). For a neutral body of mass M, containing N/2 positive and N/2 negative charges, the forces add to NQEa = -M(dv/dt), thereby explaining the cause of inertia, as a force internal to a body, opposing acceleration or deceleration. An important result of the paper is the replacement of warping of four-dimensional space-time continuum surrounding a body, according the theory of general relativity, with physical curvature of electric field lines from electic charges composing a body. It is hoped to contribute in resolving some of the problems of modern physics, such as the nature of space and gravity.