Hierarchical Principle Research Articles

Partially coupled gradient-based iterative identification methods for multivariable output-error moving average systems

This paper focuses on the identification problems of multivariable output-error moving average systems and develops a partially coupled gradient-based iterative algorithm to estimate the parameters of the systems. The key is combining the hierarchical identification principle and the coupling identification concept to decompose a multivariable system into m subsystems (m is the number of outputs), and then to identify the subsystems one by one. Compared with the gradient-based iterative algorithm, the partially coupled gradient-based iterative algorithm requires less computational efforts. The simulation results show that the proposed algorithms are effective.

Design and Simulation Analysis for Integrated Vehicle Chassis-Network Control System Based on CAN Network

Due to the different functions of the system used in the vehicle chassis control, the hierarchical control strategy also leads to many kinds of the network topology structure. According to the hierarchical control principle, this research puts forward the integrated control strategy of the chassis based on supervision mechanism. The purpose is to consider how the integrated control architecture affects the control performance of the system after the intervention of CAN network. Based on the principle of hierarchical control and fuzzy control, a fuzzy controller is designed, which is used to monitor and coordinate the ESP, AFS, and ARS. And the IVC system is constructed with the upper supervisory controller and three subcontrol systems on the Simulink platform. The network topology structure of IVC is proposed, and the IVC communication matrix based on CAN network communication is designed. With the common sensors and the subcontrollers as the CAN network independent nodes, the network induced delay and packet loss rate on the system control performance are studied by simulation. The results show that the simulation method can be used for designing the communication network of the vehicle.

A escolha e o reconhecimento pela educação: o caso de Antônio

Resumo O artigo sistematiza ganhos teóricos e metodológicos do uso da noção híbridas disposições de habitus a partir de um estudo de caso. Para desenvolver o argumento, considera primeiramente que a escolha pelo projeto escolar, em função da conquista de um reconhecimento social, pode auxiliar na explanação do princípio hierárquico da construção de um híbrido sistema orientador de conduta. A análise permite observar que o biografado pouco a pouco traça sua singularidade fundindo disposições variadas, entre elas a submissão moral proveniente do trabalho braçal, bem como disposições intelectuais e cognitivas provenientes da escola. Injunções históricas e específicas chances de escolarização foram capturadas e apropriadas por ele num jogo e uso singulares do saber difuso disponibilizado pela frequência a vários círculos sociais. Apontando aspectos do comportamento em várias dimensões de sua vida, como práticas éticas, estéticas, religiosas e profissionais, é possível considerar uma articulação singular de disposições de cultura. Por fim, a reflexão permite identificar as relações indissociáveis entre contexto socializador e processos de individuação, na medida em que condições de socialização específicas são capazes de instrumentalizar a composição singular dos indivíduos.

On Configuration Trajectory Formation in Spatiotemporal Profile for Reproducing Human Hand Reaching Movement.

Most functional reaching activities in daily living generally require a hand to reach the functional position in appropriate orientation with invariant spatiotemporal profile. Effectively reproducing such spatiotemporal feature of hand configuration trajectory in real time is essential to understand the human motor control and plan human-like motion on anthropomorphic robotic arm. However, there are no novel computational models in literature toward reproducing hand configuration-to-configuration movement in spatiotemporal profile. In response to the problem, this paper presents a computational framework for hand configuration trajectory formation based on hierarchical principle of human motor control. The composite potential field is constructed on special Euclidean Group to induce time-varying configuration toward target. The dynamic behavior of hand is described by a second-order kinematic model to produce the external representation of high-level motor control. The multivariate regression relation between intrinsic and extrinsic coordinates of arm, is statistically analyzed for determining the arm orientation in real time, which produces the external representation of low-level motor control. The proposed method is demonstrated in an anthropomorphic arm by performing several highly curved self-reaching movements. The generated configuration trajectories are compared with actual human movement in spatiotemporal profile to validate the proposed method.

Two-channel control system of thermal drying

The possibility of increasing the efficiency of thermal processes in rotary kilns by various technological and organizational solutions, the most important of which is the hierarchical principle of the thermal management system based on modern computing tools.

Assessment of water quality in Hussainsagar lake and its inlet channels using multivariate statistical techniques

Concerns about the sediment quality in lake Hussainsagar located in Hyderabad, India have been rapidly increasing recently due to urbanization and industrialization pollution. This study analyzes twelve chemical and heavy metal parameters at the four sampling stations during the year 2013 by using multivariate statistical techniques like Hierarchical clustering, principle component and factor analysis. FA identified five factors responsible for data structure explaining 71.05% total variance and allowed to group selected parameters according to common features. Cd, Cr, Zn, Ag, Ni, & As were associated with similar contributions from anthropogenic sources, whereas SO4 -2 and Cl- are derived from natural sources.

English

Stable evolutionary strategy of Homo sapiens (SESH) is built in accordance with the modular and hierarchical principle and consists of the same type of self-replicating elements, i.e. is a system of systems. On the top level of the organization of SESH is the superposition of genetic, social, cultural and techno-rationalistic complexes. The components of this triad differ in the mechanism of cycles of generation - replication - transmission - fixing/elimination of adoptively relevant information. This mechanism is implemented either in accordance with the Darwin-Weismann modus, or according to the Lamarck modus, the difference between them is clear from the title. The integral attribute of the system of systems including ESSH is the production of evolutionary risks. The sources of evolutionary risk for stable adaptive strategy of Homo sapiens are the imbalance of (1) the intra-genomic co-evolution (intragenomic conflicts); (2) the gene-cultural coevolution; (3) the inter-cultural co-evolution; (4) techno-humanitarian balance; (5) intertechnological conflicts (technological traps). At least phenomenologically the components of the evolutionary risk are reversible, but in the aggregate they are in potentio irreversible destructive ones for bio-social, and cultural self-identity of Homo sapiens. When the actual evolution is the subject of a rationalist control and/or manipulation, the magnitude of the 4th and 5th components of the evolutionary risk reaches the level of existential significance.

Computer-integrated electric-arc melting process control system

Описано формирование общей схемы компьютерно-интегрированной системы управления электродуговой печью, рассматривая её как элемент узла обслуживания системы массового обслуживания с отказами. Предложено рассматривать такие системы в виде иерархических двух- или трехуровневых, и рекомендованы несколько вариантов программно-аппаратного обеспечения. Описанный подход к формированию схемы обеспечивает возможность реализации алгоритма оптимального управления электродуговой плавкой на всех этапах технологического процесса.

Iterative Solutions of a Set of Matrix Equations by Using the Hierarchical Identification Principle

This paper is concerned with iterative solution to a class of the real coupled matrix equations. By using the hierarchical identification principle, a gradient-based iterative algorithm is constructed to solve the real coupled matrix equationsA1XB1+A2XB2=F1andC1XD1+C2XD2=F2. The range of the convergence factor is derived to guarantee that the iterative algorithm is convergent for any initial value. The analysis indicates that if the coupled matrix equations have a unique solution, then the iterative solution converges fast to the exact one for any initial value under proper conditions. A numerical example is provided to illustrate the effectiveness of the proposed algorithm.

Methodological Principles of Piano Technique in the Stages of Development

The technique of the performer’s movements is determinant to the quality of keyboard performance. The performer’s motor development is achieved, in accordance with the stages of age development. The author of this article presents the methodological principles of work in mastering the keyboard movements. Motor skills have age defined characteristics. They functions in a relation to the anatomic and psychophysiological profile of the performer. Their comprising components have different indexes in the separate stages of individual development, which is a direct requirement for a change in the methodological approaches. The piano pedagogue needs to find opportunities to influence the biopsychological potential of the students for processing motor information, to activate it to the maximum extent with the purpose of achieving a quality musical activity as an interpreter. The pedagogic selection of models for motor development should be based on the current profile of the student and should reflect the hierarchical principle of building complex movements. The refinement of methods for pedagogical influence aims at achieving optimal pianist movements with a free command of the body; realization of the interrelation between the state of the piano playing apparatus and the qualities of the achieved sound result; mastering of the motor parameters – strength, temporal and spatial; building skills for constructing motor programs, which correspond to the semantic purposes and achieve a logical and vivid interpretation of the work; improving the sensory-motor coordination during the performance of the motor programs.

Los tribunales económico-administrativos y la disminución de la litigiosidad judicial

The paper begins by mentioning the need to review the institutional goal of the municipal tax appeal boards, known by their Spanish acronym of TEAMs, of reducing administrative litigation which was introduced in the local government modernisation measures act, Law 57/2003 of 16th December 2003. It then goes on to discuss the advisability of framing the redefinition of this institutional goal conferred upon the TEAMs within the wider context of strategic planning to modernise the justice system. It ends with three proposals for the development of the tax appeal boards in the coming decade: 1) extending the TEAM formula to municipalities which are not classified as large towns; 2) reforming the existing system of ordinary administrative appeals by applying the model of a specific administrative body of a technical nature free from the hierarchical principle represented by the TEAMs, at state, regional and municipal level; and 3) for the existing TEAMs to extend the range of their functions so that, within the municipal organisation, these possible new bodies can be charged with the functions of a «multi door service».

Auxiliary model based least squares parameter estimation algorithm for feedback nonlinear systems using the hierarchical identification principle

This paper presents a decomposition based least squares estimation algorithm for a feedback nonlinear system with an output error model for the open-loop part by using the auxiliary model identification idea and the hierarchical identification principle and by decomposing a system into two subsystems. Compared with the auxiliary model based recursive least squares algorithm, the proposed algorithm has a smaller computational burden. The simulation results indicate that the proposed algorithm can estimate the parameters of feedback nonlinear systems effectively.

Gradient-based iterative algorithm for solving the generalized coupled Sylvester-transpose and conjugate matrix equations over reflexive (anti-reflexive) matrices

Linear matrix equations play an important role in many areas, such as control theory, system theory, stability theory and some other fields of pure and applied mathematics. In the present paper, we consider the generalized coupled Sylvester-transpose and conjugate matrix equations [Formula: see text] where [Formula: see text] is a group of unknown matrices and for [Formula: see text], [Formula: see text] in which [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] are given matrices with suitable dimensions defined over complex number field. By using the hierarchical identification principle, an iterative algorithm is proposed for solving the above coupled linear matrix equations over the group of reflexive (anti-reflexive) matrices. Meanwhile, sufficient conditions are established which guarantee the convergence of the presented algorithm. Finally, some numerical examples are given to demonstrate the validity of our theoretical results and the efficiency of the algorithm for solving the mentioned coupled linear matrix equations.

BODILY PARTS VYING FOR POWER: HIERARCHIES AND BODIES IN EARLY CHRISTIANITY

In this essay I argue that a rhetoric of the body exposes the all-pervasiveness of the hierarchical principle as it manifested itself in the Graeco-Roman world. The parts of the ancient body were constructed with the fabrics of the social body. Implications for an engendered interpretation of Biblical writings are indicated and demonstrated via an analysis of selected passages from the Pauline letters.

Ship Flap-Fin Equivalence Analysis Based on AHP

In order to verify the similarity of the servo system of the main-fin and the flap-fin of the established fin-flap control physical simulation system in the drive way with the prototype system, the method of equivalence analysis based on the principle of similarity is proposed in this paper. In order to better determine the weights of each subsystem, the consistency correction method of the judgment matrix is studied combined with hierarchical analysis principle. Finally, the main-fin / flap-fin servo system is taken for example to analyze the equivalence of flap-fin control of physical simulation system, and the proposed method in this paper is proved to be feasible.

DATA FILTERING BASED STOCHASTIC GRADIENT ALGORITHMS FOR MULTIVARIABLE CARAR-LIKE SYSTEMS

This paper considers identification problems for a multivariable controlled autoregressive system with autoregressive noises. A hierarchical generalized stochastic gradient algorithm and a filtering based hierarchical stochastic gradient algorithm are presented to estimate the parameter vectors and parameter matrix of such multivariable colored noise systems, by using the hierarchical identification principle. The simulation results show that the proposed hierarchical gradient estimation algorithms are effective.

Construction of fractal nanostructures based on Kepler-Shubnikov nets

A system of information codes for deterministic fractal lattices and sets of multifractal curves is proposed. An iterative modular design was used to obtain a series of deterministic fractal lattices with generators in the form of fragments of 2D structures and a series of multifractal curves (based on some Kepler-Shubnikov nets) having Cantor set properties. The main characteristics of fractal structures and their lacunar spectra are determined. A hierarchical principle is formulated for modules of regular fractal structures.

Multistage least squares based iterative estimation for feedback nonlinear systems with moving average noises using the hierarchical identification principle

This paper develops a multistage least squares based iterative algorithm to estimate the parameters of feedback nonlinear systems with moving average noise from input–output data. Since that the identification model is bilinear on the unknown parameter space, the solution is to decompose a system into several subsystems with each of which is linear about its parameter vector, then to replace the unknown noise terms in the information vectors with their corresponding estimates at the previous iteration of each subsystem, and estimate each subsystem, respectively. The simulation results show that the proposed algorithm can work well.

The Study and Application of Process Modeling Methods Based on Global Design

With the level of complexity of the products was higher and higher, as a technology which can accelerate the development process, process modeling has become the focus of the domestic and international scholars. This paper studies the association relationship between the components’ structure of product design, and introduces the hierarchical principle of the feedback mechanisms, and constructs a new process modeling method based on the global design method, which improve the ability of description of the process model and the flexibility of the new product’s design. Then this method is applied to the car spraying production line.

Construction of an iterative method for solving generalized coupled Sylvester matrix equations

Solving linear matrix equations has various applications in control theory, in engineering, in scientific computations and various other fields. By applying generalization of the Hermitian and skew-Hermitian splitting (GHSS) iteration and the hierarchical identification principle, we propose a gradient-based iterative method for finding the solution of the generalized coupled Sylvester matrix equations (including (coupled) Sylvester and Lyapunov matrix equations as special cases). We prove that the iterative solution consistently converges to the solution for any initial matrix. Some numerical examples and applications are provided to illustrate the effectiveness of the method.