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Model assessment of Land suitability (MAOLS) is a valuable tool for palm land, and it is used to manage the natural resource in the land clearing of oil palm plantations. This model is applied to a decision support system (DSS) for oil palm plantation land clearing problem. This issue is intended to avoid excessive land clearing, therefore the efficient analysis in decision making is necessary. DSS...
A well defined testing strategy is essential for any software development project. Testing efforts need to be carefully planed and executed in order to ensure effectiveness. Programming failures can represent a high risk for business. In order to mitigate such risk, companies have been increasingly investing more resources on software testing.
A design optimization method based on dependency model is proposed for Built-in test design in Prognostics and Health Management. Firstly, simplify the dependency model, eliminate the redundant test and merge the fuzzy fault model. Secondly identify the minimum test vector matrix to each fault mode. Under the principles of reliability and costs, determine the optimal test vector, which is used as...
There is developed the simulation model of single bit third order sigma-delta modulator. It provides investigation of the influence of components' parameters on modulator's error. It is presented results of investigation of integrator's nonlinearity on integral nonlinearity of this modulator. The presented results provides purposeful selecting of correction function for correction nonlinear error...
The results of development of multi-core recurrent dataflow architecture (MRDA) focused on effective implementation of parallel digital signal processing (DSP) algorithms are being presented. All stages of MRDA development are integrated into a single iterative design cycle including mathematical modeling tools (imitational model); hardware modeling tools (VHDL-model); FPGA prototype and tools for...
The objective of this paper is to introduce a new constraint model for testing the conformity of overriding methods during inheritance operation for an object oriented (OO) system. This model is based on formal specification techniques and can be used to generate test data in derived classes. The key idea of this conformity approach is to use an optimal constraint and a partitioning technique based...
This paper presents an original approach to estimate the accuracy of numerical algorithms of transient analysis for four test problems. The tests are presented as mathematical models and electronic circuits too. Test problems and methods of estimation of numerical analysis algorithms' accuracy proposed in the present paper can be used in circuit simulators and in computer mathematics programs to test...
A/B testing is one of the most successful applications of statistical theory in the Internet age. A crucial problem of Null Hypothesis Statistical Testing (NHST), the backbone of A/B testing methodology, is that experimenters are not allowed to continuously monitor the results and make decisions in real time. Many people see this restriction as a setback against the trend in the technology toward...
Traditional bus-based systems-on-chip (SoCs) are turned to on-chip networks (NoCs) to overcome communication bottleneck. But, fabricating such NoC-based systems without any defect in interconnects or logics is a major challenge. This paper proposes a cost effective and scalable on-line test solution that detects and diagnoses intra-and inter-shorts in NoC interconnects. The proposed solution offers...
The purpose of this study was to incorporate a new format of C-Test, the S-Test, as part of the Computer-Based Test of English Competence (CB TEC). The subjects for the main study were 209 voluntary graduate students at the National Institution of Development Administration, Bangkok, Thailand. Two forms of CB TEC (Form A and Form B), with the only difference in Section II, were used with 105 participants...
State-of-the-art hardware-in-the-loop testing exposes the unit-under-test to emulated virtual system environment dynamics already in the laboratory. Thus the designated environment model has to be simulated in real-time. In this work a real-time-capable high-fidelity model of the complex dynamics of railway catenaries is presented to be utilized in a high-dynamic, high-speed pantograph test rig. The...
The approach proposed in this paper engages FFT to the linear analog circuit specifications determination. The method allows to calculate the observed circuit under test parameter based on the step response analysis. The approximating equation that models the relationship between the selected frequency components and the observed specification is determined by means of multiple linear regression....
This paper presents a real-time co-simulation platform aimed to test control strategies for the management of the interaction between a smart grid and active prosumers. The main feature of the proposed framework relies on the multi-site approach that allows the decoupling between the network model and the system under test. This allows separate testing with the exchange of a limited amount of information...
Simulator of electric drive system based on power converter with control system which realizes in real time model of converter, motor and mechanism is discussed. Power simulator is intended for converters testing and for their operating modes studying. Simulator repeats electric drive instantaneous current and angular velocity.
People write online documents from different personal perspectives. The competitive perspectives they hold reflect the conflicts in their fundamental stances and viewpoints. For many security-related applications, it is both beneficial and critical to identify the competitive perspectives implied in online documents. Previous work on competitive perspective identification is based on word features,...
High precision electronic DC loads are necessary for testing the characteristics of switching power supplies, DC power sources such as photovoltaics, fuel cells. Variable electronic loads can be controlled from a remote computer for testing equipment in remote areas and other specific research & development or educational purposes. Electronic loads can also be used in distant control of the test...
Bad data detection and identification is an important step in state estimation procedures. Finding the values of the state variables relies on real time measurements which are normally contaminated by noise or may suffer some error due to misconfiguration. Furthermore, the data is a target for hackers who try to change some measurement readings that lead operators to take wrong decisions. The need...
Model based event detection and localization states one method to deal with leakage occurrence in water distribution systems (WDS). Since access to hydraulic models and measurement data of real world systems is limited for researchers the opportunities for testing new model approaches on one and the same WDS are scarce. In this article we present an experimental water distribution system (EWDS-TUG)...
Today's highly increasing product diversity and decreasing product life cycles, also in the automotive industry lead to fast changing production systems with a high ratio of mechatronic components and (control) software. That again leads to ever increasing use of Virtual Commissioning during the development process of automated manufacturing plants. Paired with the still increasing request towards...
The continuous need for renewable energy sources is a driving force for a fast development of wind turbine technologies. It is well known that control interactions can arise if the wind farms and the interconnecting system, for example ac collector system or high voltage direct current (HVDC)-link, are not properly integrated. One tool to assess the stability of the system is to analyze the input...
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