Texas Journal of Engineering and Technology
Not a member yet
487 research outputs found
Sort by
Building Models of Their Functions According to SingleValued and Multivalued Compatibility Truth Table of Cryptographic Accelerations
Get PDFThe article describes the features and properties of constructing models of these functions according to the truth table of single-valued and multi-valued cryptographic representations
Technology for Working with Graphic Programs
Get PDFThis article provides information about working with graphic programs on a computer, their types and capabilities. Some problems encountered in working with graphic programs are discussed
Teacher's Choice of Organizational Forms of Learning in a Virtual Educational Environment as a Pedagogical Problem
Get PDFThe educational environment today is rapidly changing due to new realities and new learning needs. One of the currently most demanded areas of innovation is the organization of new forms of education in a virtual educational environment. The article discusses the role of a teacher in a virtual educational environment, new functions that a modern teacher should take on, which requires new knowledge and competencies from him
On Generalized Derivations Of Jordon Algebras
Get PDFIn the present article the concept of generalized derivations of Jordan algebras is introduced and the general properties of generalized derivations are studied. In particular, invariants are constructed in Jordan algebras using generalized derivations. Also, a description, for some values of the parameters a, b, g, of the sets of all (a, b, g) -derivations of Jordan algebrasis given
Model of the evaporation apparatus for concentrating fruit and vegetable juice
Get PDFIn the article, the process of evaporation of fruit and vegetable juice in an evaporating apparatus, despite its relatively low productivity, can be attributed to continuous-acting apparatuses, which excludes the possibility of complete evaporation of juice, but at the same time its evaporation is necessary to the required density
Development of Technology for the Production of Grease Based on Local and Secondary Raw Materials
Get PDFThe article investigates the possibility of obtaining a plastic lubricant based on secondary raw materials and local raw materials. Obtaining grease from waste allows replacing industrial raw materials, which will affect the economy of their production. At the same time, the use of waste ensures the environmental safety of the environment. The resulting grease in laboratory conditions is not inferior to general-purpose lubricants in terms of its quality
Solar Photoenergy – The Future Photoenergy
Get PDFThe sun is the source of all energy on Earth. In temperate climates, 25-30% of the total energy consumed is used for heating, hit water supply and air conditioning. Solar energy is very convenient is supplying energy to remote and low energy facilities. Solar photovoltaics is one of the unconventional and renewable types of energy the converts solar optical radiation energy into electricity and provides consumcts with electricit
The most significant methods of mastering of communicative competence in target language
Get PDFHigher education plays an important role in developing communicative skills of ESP learners. ESP is oriented towards mastering the skills for professional communication. However, most of the students find themselves incompetent in the course of their work. The article discusses the benefits of using a project work to history students to improve their speaking skills as well as professional communication. The topicality of the article is determined by the fact that the projects proposed have not been actively introduced into curriculum designed for history students. The article is aimed at analyzing the problems the teachers face in teaching process. It proposes six methods for teachers as practical advice that can be used effectively to master students’ speaking skills at the end of the project. The results show that implementing project is very effective in improving speaking, critical thinking skills, creativity, and how to manage the time. The purpose of the article is to encourage ESP students to learn English through introducing new approaches to teaching. The author indicates that apply project work to language learning raises the academic achievement in which students explore the real world challenge
Main Requirements of the O'zDSt ISO\IEC Standard 17021:2009
Get PDFOn September 15, 2006, ISO/IEC 17021:2006 Conformity assessment -Requirements for bodies providing audit and certification of management systems In December, on the eve of 2007, the International Accreditation Forum (IAF) and the International Organization for Standardization (ISO) issued a joint communiqué establishing a global two-year transition period for meeting its requirements until September 15, 2008
Model and Chattering Free Adaptive Fuzzy SMC for Robotic Manipulator Systems
Get PDFThis In recent decades, many researchers proposed fuzzy Sliding Mode Control (SMC) strategies that aim to eliminate the chattering problem in control of Multi-Input-Multi-Output (MIMO) nonlinear robotics manipulator systems. All these methods impose the need to determine the dynamic model of system under control, which is a challenging task in many practical cases. This paper presents a new model free and chattering free SMC method for MIMO nonlinear robotics manipulator systems based on Proportional-Derivative (PD) and fuzzy logic control. Proposed controller combines the robustness feature of SMC, simplicity of Proportional-Integral-Derivative (PID) control and ability of fuzzy technique in function approximation of discontinuity part of traditional SMC. In this paper, PD control is used as equivalent control in order to stabilize the system while adaptive fuzzy SMC is used to handle uncertainty of the system. Lyapunov’s second method is utilised to prove stability of proposed controller. Two different robotic manipulator configurations; two-links with payload and three links robotic manipulator under external disturbance and system uncertainties are simulated to demonstrate the efficiency of the proposed method