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One argument in the discussion about the adoption of UML in industry is the supposedly large effort it takes to do modeling. Our study explores how the creation of UML models can be understood to consist of different cognitive activities: (i) designing: thinking about the design (ideation, key-design decision making), (ii) notation expression: expressing a design in a modeling notation and (iii) layouting:...
The main investigation of the paper is to develop the defuzzification method of type-2 gamma fuzzy variables. For this purpose, we have proposed the deffuzification technique of type-2 gamma fuzzy variables with the help of CV based reduction method. The paper also focuses on the significance to use the type-2 fuzzy variables especially the type-2 gamma fuzzy variables. In this paper, a transportation...
In this paper, details the functioning of a plant of control, air suspension of a sphere, through which it will analyze its mathematical model, its nonlinear behavior, which must be linearized in a point of operation, to subsequently generate a PID control of it, in order to verify the correct behavior of the plant against several perturbations, their respective testing and simulation using MATLAB...
Virtual Reality technology is spreading rapidly, and already existing in many fields nowadays. Education is one of the most important fields in life, therefore it should be in line with new technologies and lifestyles. In fact, applying technology in education, is facilitating the way of teaching and learning techniques. In this paper, a virtual reality application was developed for educational purposes...
With the increasing voltage class of power equipment, the turn number of winding equipment becomes more great and the coupling between the turns becomes stronger. As a result, it is difficult to solve circuit equation by analytical algorithm. This paper provides a method using waveform relaxation (WR) to solve the circuit equation. This method could be applied in calculation of complex computation,...
One difficulty of teaching in mathematics is to present abstract mathematical concepts or laws to students in a simple visual way to promote students' understanding and mastery. Traditionally mathematical teachers tried to explain abstract mathematical concepts and formulas by means of some simple teaching tools and some mathematical models presented by some mathematical software, such as Matlab,...
This paper presents a method for detecting different types of defects in the cable sheaths interconnected in a cross bonding configuration of a HV cable system installed in flat or trefoil layout using the sheath currents as input data. Three different defects have been analyzed: electric continuity loss of earth connection, short-circuit between sectionalized metal sheaths of a cable joint and link-box...
This article describes a remote lab for fruit and vegetable drying, and discusses feedback from students who used the lab in their training. A major conclusion of the survey was that there is interest in the remote laboratory because it provides practical experience in the training of an automation and control engineer. It can be concluded that the remote laboratory has a positive effect on the students'...
The purpose of this study is to create a model of a relationship in which the dependent variable is the result of a project and the independent variables are the characteristics of human resources. We attempted a comparative evaluation of discriminant analyses with a statistical model and a machine learning model using assessments of the results of projects and team characteristics derived from questionnaire...
OpenFOAM is a framework of the open source C CFD toolbox for flexible engineering simulation, which uses finite volume method (FVM) in the discretization of partial differential equations (PDEs). The problem solving procedure in OpenFOAM consists in equations dicretization stage, equations solving stage and field limiting stage. The best parallelism is limited by the equation solving stage, which...
As with the increase of software complexity, software failure has become an important threat to the reliability of software intensive systems. Software fault propagation behaviors, which are prevalent in complex software systems, have a ubiquitous influence on software reliability design and evaluation process. Software fault propagation is a necessary condition for the failure of complex software...
High quality requirements are set for automated production systems (aPS) as malfunctions can harm humans or cause severe financial loss. These malfunctions can be caused by faults in the control software of the aPS or its inability to correctly identify and handle unintended situations and errors in the technical process or hardware behavior. To achieve more dependable control software, software testing...
There are many software-based tools that can be used to evaluate the radio-ecological impacts. Plume Gaussian is a simple dispersion model, easy to be implemented and developed further. This paper describes the application of Plume Gaussian model to simulate the dispersion of I-131 released around the Serpong Nuclear Area (Kawasan Nuklir Serpong, KNS). The software development consists: mathematical...
the most effective way to improve the simulation results is to improve the model itself, different methods established to check the model comparability. Because of the Time-varying, nonlinearity and complexity of the machining process, the traditional PID control has been unable to meet the requirements, which are being high-speed and high-precision, the most active solution methods had been investigated...
The trend of “Smart” concept may have begun with smart vehicles and smart buildings, but as technology advances, the “smart” trend is compelling over entire cities. Around the world, cities with different capacities are converting their infrastructure, systems, and operations to capitalize on new technologies. But these new smart cities are not just forward thinking when it comes to the best ways...
The Internet of things offers a promising future for all stakeholders in technology; from researchers to consumers. It comprises a network of entities i.e. everyday objects; capable of sensing, processing, storing data and communicating with other entities. These entities or “things” can be connected to the internet and monitored or controlled through a service on another module like a mobile device...
The Airplane 3D geometric model is established with unstructured mesh dividing. The numerical simulation of the airplane outflow field is carried out based on the commercial CFD software, the temperature distribution data of aircraft surface is obtained, the radiation process of the tail nozzle and plume radiation is modeled and calculated. The calculation model of infrared radiation characteristic...
This paper focuses on an analysis of data from elderly patients (aged 65 and older) who underwent an elective operation of colon or rectum in the years 2001–2009 at the Department of Surgery of the University Hospital Ostrava. The main purpose is to determine the main risk factors leading to serious postoperative complications or even death in consequence of the operation. Our results will serve as...
In the electricity sector, new sides have emerged with the development of technology and the increasing the electric energy need. Today, electricity has become a product that is bought and sold in the market environment. Forecasting which is the first step of plans and planning have become much more important and have been made mandatory for the market participants by energy market regulators. In...
A 10-year working partnership between engineering instructors and communication instructors for a course called “Computer-Aided Engineering: Applications to Biomedical Process” aims to enrich the professional skills of the engineering students overall. This paper provides a window to the ways the course aids students in improving their engineering/technical writing and presenting skills. This year,...
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