Mathematical models are constructed and used as a methodology of various functioning systems structure investigation and performance analysis. The main goal of mathematical model usage is to perform wholesome diagnost...
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Mathematical models are constructed and used as a methodology of various functioning systems structure investigation and performance analysis. The main goal of mathematical model usage is to perform wholesome diagnostics and correct work resumption of investigated system. In the article topological modeling method has been investigated by giving fundamental basics and application spheres by examples. Authors propose model construction method with an example from medicine by creating multiple diseases (arterial hypertension, atherosclerosis and diabetes mellitus) evolution topological model with formal aspects. Developed modeling method and united diseases model can be used to prognosticate evolution of diseases, perform inspection of used therapies and provide information for optimal therapy complex selection.
Autonomous extraction of information from traffic video surveillance has received widespread attention in recent years due to the capability of analyzing massive data persistently. In this paper, we present a system f...
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Autonomous extraction of information from traffic video surveillance has received widespread attention in recent years due to the capability of analyzing massive data persistently. In this paper, we present a system for extracting vehicle information from traffic video sequence build a framework for defining driver behavior models. We detect the sedans and split them into two categories - taxi and otherwise, according to the color and size. The labeled cars from two categories form two exemplars of driver behavior - professional and standard. We use these two exemplars to compute the unknown parameters of the Hidden Markov Model (HMM) and demonstrate the quantitative discrimination of these two categories, which can be used for many applications of intelligent transportation system, such as abnormality detection and transportation planning. We also demonstrate applications which utilize the proposed model to detect aggressive drivers and professional drivers. The system is extensible with large surveillance databases for automated detection of driver behavior and states in-situ for a variety of traffic event models. Furthermore, statistical information on driver behavior of different vehicle types, demographics and time periods for various locations of interest can be obtained by off-line processing of the surveillance data using the proposed model. The proposed framework can further be integrated with automated surveillance systems for guiding traffic controllers as well as city planners in better management of traffic.
Different type dynamic systems in functional work phase lose performance and it's necessary to establish normal operation level by using external influence. External influence can be defined as recovery method. In...
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Different type dynamic systems in functional work phase lose performance and it's necessary to establish normal operation level by using external influence. External influence can be defined as recovery method. In practice exists different possibilities how to resume performance of system and the main objective is to select the most efficient solution. In the article new approach for normal operation recovery selection is defined, including each recovery and recoveries complex assessment for optimal solution selection. For optimal solution choice benefit and disadvantage criteria are proposed. For practical implementation in case of medicine, arterial hypertension evaluation and pathogenesis therapy selection is described.
As a kind of large metallurgy equipment, liquid iron tank was used more widely. This paper took 130t liquid iron tank as an example. Three dimensions solid model of liquid iron tank lifting lug was constructed by ANSY...
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As a kind of large metallurgy equipment, liquid iron tank was used more widely. This paper took 130t liquid iron tank as an example. Three dimensions solid model of liquid iron tank lifting lug was constructed by ANSYS software in this paper. Grid division, restriction, load and strength finite element analysis were also made on relevant computation model. The relevant equivalent stress distribution rule of liquid iron tank lifting lug was found. The position of maximum equivalent stress was found. Liquid iron tank lifting lug can satisfy the use demand under slow lifting up working condition was proved. This analysis provides a practical and effective research method for research the strength and reliability of liquid iron tank. It also provides a theory base for corporation to recast and design liquid iron tank.
Geometric fault detection and isolation filters are known for having excellent fault isolation properties. However, they are generally assumed to be sensitive to model uncertainty and noise. This paper proposes a robu...
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ISBN:
(纸本)9781457700811
Geometric fault detection and isolation filters are known for having excellent fault isolation properties. However, they are generally assumed to be sensitive to model uncertainty and noise. This paper proposes a robust model matching method to incorporate model uncertainty into the design of geometric fault detection filters. Several existing methods for robust filter synthesis are described to solve the robust model matching problem. It is then shown that the robust model matching problem has an interesting self-optimality property for multiplicative input uncertainty models. Finally, a simple example is presented to study the effect of parametric uncertainty and unmodeled dynamics on the performance of a geometric filter.
Multi-layer integrated neural networks evaluation model of synthesis quality of the products is founded based on the information fusion theory. Quality of the products are synthetically evaluated using this model, mor...
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ISBN:
(纸本)9781424490103
Multi-layer integrated neural networks evaluation model of synthesis quality of the products is founded based on the information fusion theory. Quality of the products are synthetically evaluated using this model, moreover design method is also evaluated and verified, judgment of product performance and grade, as well as performance difference of the products in structural performance, service behavior and processing property. Scientific decision basis for evaluating and improving overall quality of the products is offered.
According to the strict aerodynamic heating environment in the reentry process, a new reentry trajectory planning method is presented. A reasonable Heat Flux Rate (HFR) curve is designed with the energy of the aircraf...
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Structural Health Monitoring(SHM) is one of the research topics that have received growing interest in research communitiesWhile a lot of efforts have been made in detecting damages in structures, very few researches ...
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Structural Health Monitoring(SHM) is one of the research topics that have received growing interest in research communitiesWhile a lot of efforts have been made in detecting damages in structures, very few researches have been conducted for the structure damage classification problemThis paper presents an artificial immune pattern recognition(AIPR) approach for the damage classification in structuresAn AIPR-based Structure Damage Classifier(AIPR-SDC) has been developed, which incorporates several novel characteristics of the natural immune systemThe immune learning algorithm can remember various data patterns by generating a set of memory cells that contain representative feature vectors for each pattern, which are extracted from the compressed data using the auto regression exogenous(ARX) algorithmThe AIPR-SDC approach has been tested using a benchmark structure proposed by the IASC-ASCE Structural Health Monitoring Task GroupThe test results show the feasibility of using the AIPR-SDC method for the structure damage classification.
One of the prerequisites for AFM based nanomanipulation is that the position of the target nanoparticle can be stable controlled within a known area, while this prerequisite is still hindered by the uncertainties incl...
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This article is concerned with the UAV path re-planning problem to be solved by using a novel approach based on the hybrid of virtual force and A* search algorithm (HVFA). The formulation of the UAV path re-planning i...
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This article is concerned with the UAV path re-planning problem to be solved by using a novel approach based on the hybrid of virtual force and A* search algorithm (HVFA). The formulation of the UAV path re-planning is presented, and the hybrid system model of virtual force (VF) is given. The scheme of path re-planning is designed and the corresponding computational complexity is analyzed quantitatively. Simulation results prove the feasibility and usefulness of using HVFA for UAV path re-planning. Performance comparisons between the HVFA method and the fuzzy virtual force (FVF) method demonstrate that the proposed approach is fast enough to meet the real-time requirements of the online path planning problems.
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