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Performance prediction is critical in embedded system design for reducing the turnaround time of software. Using simulation to measure the performance of the whole source code is often too slow, particularly after the modification of the source code due to changes in problem specification. In this paper we present a comprehensive method that combines analytical modeling and statistical approach to...
Good results have been obtained for face alignment in a single image. This is beneficial from use of auxiliary models or prior information. Compared with a single face image, there is much information available in multiple face images of a person. Rigid joint alignment will use the information as a whole. The paper mainly contain two works, i.e. constructing rigid joint alignment of multiple face...
This paper treats a general method of computing electrical image charges, in case of conductive closed surfaces with meridian plane symmetry. According to this method, which is based on field synthesis, the ill-conditioned system is solved using the binomial coefficient method. Validation of the method was done using a simple physical model that allows for direct verification of synthesis results.
Remote Operated Vehicles(ROV) play an important role in marine economic development, environmental protection and disaster management. This paper introduces the design procedure for the rudder wing of ROV used in marine shallow water areas. First of all, the wing selection of the rudder wing is chosen based on the maneuverability requirements of the ROV Secondly, the 3D model of the rudder wing is...
Flight vehicle attitude control is of great importance. In this paper, a flight controller based on active disturbance rejection control (ADRC) is proposed. Then stability margin tester is utilized to tune the parameters of the controller to meet the specified stability margins, which will serve as a practical tuning method in practice. Moreover, the CAD software based on MATLAB GUI is designed to...
This paper will discuss an embedded system for Structural Health Monitoring (SHM). The system designed is a working proof of concept prototype made for an SHM system using Piezoelectronic transducers as the sensors. The system uses pulse-echo and pitch-catch techniques to find the location of damage and the width of the damage. If damage is present, the system will generate an email and send to the...
The optimal distribution of fuel and energy resources, in particular injected fuel and oxygen, within a group of blast furnaces is a crucial task because process performance of individual furnaces significantly varies. With the preset total consumption of injected fuel and oxygen for the blast-furnace plant, it is important to have an operating methodology for assessment of efficient use of these...
The reliability of the treadmill belt speed using a feedback-controlled treadmill algorithm was analyzed in this study. Using biomechanical factors of the participant's walking behavior, an estimated walking speed was calculated and used to adjust the speed of the treadmill. Our proposed algorithm expands on the current hypotheses of feedback-controlled treadmill algorithms and is presented below...
It is shown that virtual laboratory complexes identical to real physical stands may provide an alternative in laboratory workshop for students of technical specialties of higher educational establishments. The basic requirements for virtual complexes are formulated and graphic programming medium LabVIEW is proposed as a platform for their creation. An example of a virtual laboratory complex for the...
The paper dwells on the design of a diagnostic system and expert assessment of the significance of threats to the security of industrial networks. The proposed system is based on a new cyber-attacks classification and presupposes the existence of two structural blocks: the industrial network virtual model based on the scan selected nodal points and the generator of cyber-attacks sets. The diagnostic...
In this article we consider an example of application of GMSH + GetDP software for the calculation of non-stationary electromagnetic fields of electrotechnical devices. The question of the importance of flexible configuration software designed to solve such problems was raised. The article provides an example of the configuration choice for the software complex GMSH + GetDP for the numerical simulation...
The primary researches are mainly of two measures focused on a suitable control strategy and an additional hard-ware circuit to enhance the LVRT capability of photovoltaic (PV) system. In this paper, according to the Grid Integration Technical Regulation of PV station published by state grid crop, a hybrid control method composed of software and hardware are presented to enhance the capacity of low-voltage...
Information-Centric Networking (ICN) focuses on data dissemination instead of host communication, and it is a promising solution for video streaming in Vehicular Ad-hoc Networks (VANETs). In Information-Based VANETs, content copies can be cached by arbitrary mobile nodes in the networks. Thus, it is required to optimize the routing of content requests (referred to as Interest packets) in order to...
In the last few years, software aging has been reported. The phenomenon of software aging is that the performance of the software system is degradation in a long-running state, which is the result of exhaustion of system resources, the accumulation of internal error conditions and so on. In order to counteract software aging, a technique, which called software rejuvenation, has been proposed, this...
Traffic capacity in an accident site of the lane is investigated by analyzing the urban road traffic accident. The accident is caused by the vehicles in the upstream intersection traffic jam time. A hypothesis model is established to describe a relationship between the vehicle queue length and the cross-sectional actual capacity in the accident. In order to verify the rationality of the assumptions...
A hyperbolic shear deformation theory for thick isotropic beams is developed. This theory satisfies shear stress free boundary condition at top and bottom of the beam and doesn't need shear correction factor. A displacement based finite element model of this theory is formulated using the variational principle. Displacements are approximated using the homogeneous solutions of the governing differential...
Sequence to sequence (seq2seq) prediction is a key to many tasks of machine learning. Personal computer software sequence, as one of these tasks, was regarded as stochastic and unpredictable in the past. However, the deep neural networks (DNNs) have achieved excellent performance recently in sequence to sequence tasks, especially in the field of natural language process (NLP) such as language model,...
An issue of the paper is a summary of existing research of material properties changes of a passive Armor, which depends on a temperature. New quantities for an evaluation of thermal effect on a passive armor material are described there; especially a relative volume and a coefficient of thermal change of an imprint's depth. Direction of other research is indicated in a conclusion.
In this work was used a methodology for the magnetic simulation of power transformers for 12-pulse rectifiers. For the magnetic simulation of transformers the software ANSYS Maxwell was used, while for the model of circuits the software ANSYS Simplorer was used. Parameters such as electric losses in active components due to harmonics were analyzed. In final part of this work a comparison is made between...
A novel approach of a testbed for embedded networking nodes has been conceptualized and implemented. It is based on the use of virtual nodes in a PC environment, where each node executes the original embedded code. Different nodes are running in parallel and are connected via so-called virtual interfaces. The presented approach is very efficient and allows a simple description of test cases without...
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