scholarly journals On the Disordered, Collective and Patterned Movements of Media. Qualitative Analysis of Movements

2019 ◽  
Author(s):  
Géza Lámer
Keyword(s):  
Collective Motion ◽  
Physical Space ◽  
Rigid Bodies ◽  
The State ◽  
Deformable Solid ◽  
Flow Image ◽  
Free Particles ◽  
Deformable Solid Body ◽  
State Functions ◽  
Number Of Particles

The motion of elements is classified from a topological aspect. We separate three different, disordered, collective and patterned motion forms of media. We will reveal what concrete shapes the different type media take. In case of a limited number of particles, a discrete description is suitable for tracking the mechanic behavior of the medium. In case of the large of a number of particles we apply in some sense continuous mathematical model according to the motion occurring in the medium instead of a discrete description. We postulate a statistical distribution to the disordered motion; we "distribute" the particles for the collective motion in the physical space and apply a differential geometric description. We assign continuous flow lines to the regular patterned motion of the medium with free particles while we assign energy dissipation to the flow image an irregular patterned motion. In the case of deformable solid body built by periodically arranged rigid bodies the state functions with discrete domain of definition are represented by functions with continuous domain of definition. Granular conglomerations seem to be the only such medium, which allow tracking of the state of all granules.Disordered motion leads to thermodynamic - statistical description. The collective motion of free particles leads to the description of the laminar flow of particles, the collective motion of fixed particles leads to the classical continuum. The patterned motion of free particles leads to the description of vortex or turbulent flow, the patterned motion of fixed particles leads to grid continua.

First passage time for the state of exact chemical equilibrium

1980 ◽  
Vol 45 (3) ◽  
pp. 777-782 ◽  
Author(s):  
Milan Šolc
Keyword(s):  
Chemical Equilibrium ◽  
First Passage Time ◽  
Passage Time ◽  
The State ◽  
Recurrence Time ◽  
First Passage ◽  
First Order ◽  
The Mean ◽  
Passage Times ◽  
Number Of Particles

The establishment of chemical equilibrium in a system with a reversible first order reaction is characterized in terms of the distribution of first passage times for the state of exact chemical equilibrium. The mean first passage time of this state is a linear function of the logarithm of the total number of particles in the system. The equilibrium fluctuations of composition in the system are characterized by the distribution of the recurrence times for the state of exact chemical equilibrium. The mean recurrence time is inversely proportional to the square root of the total number of particles in the system.

scholarly journals Restructuring the State: Policy Transition of Construction Land Supply in Urban and Rural China

Land ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 15
Author(s):  
Renhao Yang ◽  
Qingyuan Yang
Keyword(s):  
Rural China ◽  
Institutional Arrangements ◽  
The State ◽  
Market Forces ◽  
Central State ◽  
Land Supply ◽  
Reform Era ◽  
Construction Land ◽  
Clear Cut ◽  
State Functions

Encountering the articulation of the strongness of local authorities and market forces in China’s development, attention has been paid to the changing central state which recentralised the regulation capability of localities which has more discretional power on resources utilisation, land for example, in the post-reform era. Yet it is still not clear-cut what drives the state rescaling in terms of land governance and by what ways. After dissecting the evolving policies and practices of construction land supply in China with the focus on the roles of state, we draw two main conclusions. First, the policy trajectory of construction land supply entails a complicated reconfiguration of state functions, which is driven by three interwoven relations: land–capital relation, peasant–state relation and rural–urban relation. Second, state rescaling in terms of the governance of construction land provision works via four important approaches: limited decentralism, horizontal integralism, local experimentalism and political mobilisationism. By reviewing the institutional arrangements of construction land provision and the state rescaling process behind them, this article offers a nuanced perspective to the state (re)building that goes beyond the simplified (vertical or horizontal) transition of state functions.

A Convex Complementarity Approach for Simulating Large Granular Flows

2010 ◽  
Vol 5 (3) ◽  
Author(s):  
Alessandro Tasora ◽  
Mihai Anitescu
Keyword(s):  
Granular Flow ◽  
Complementarity Problems ◽  
Particle Interaction ◽  
Granular Flows ◽  
Rigid Bodies ◽  
Integration Time ◽  
Frictional Contacts ◽  
Physical Experiments ◽  
Dense Granular Flow ◽  
Number Of Particles

Aiming at the simulation of dense granular flows, we propose and test a numerical method based on successive convex complementarity problems. This approach originates from a multibody description of the granular flow: all the particles are simulated as rigid bodies with arbitrary shapes and frictional contacts. Unlike the discrete element method (DEM), the proposed approach does not require small integration time steps typical of stiff particle interaction; this fact, together with the development of optimized algorithms that can run also on parallel computing architectures, allows an efficient application of the proposed methodology to granular flows with a large number of particles. We present an application to the analysis of the refueling flow in pebble-bed nuclear reactors. Extensive validation of our method against both DEM and physical experiments results indicates that essential collective characteristics of dense granular flow are accurately predicted.

ADMINISTRATIVE REGULATIONS OF STATE FUNCTIONS AT THE PRESENT STAGE: DYNAMICS OF CHANGES IN THE APPROACH TO THE CONCEPT AND VARIETIES AT THE LEGAL REGULATORY

2021 ◽  
Vol 14 (6) ◽  
pp. 137-141
Author(s):  
ROMAN ZELEPUKIN ◽  
Keyword(s):  
Public Administration ◽  
Administrative Reform ◽  
The State ◽  
Present Stage ◽  
Logical Connection ◽  
Administrative Procedures ◽  
Continuous Activities ◽  
And Function ◽  
And Control ◽  
State Functions

In this article the author analyses the development of administrative regulations in the system of modern public administration. The state of administrative regulations and their institutionalisation as a result of the administrative reform is noted. It has been identified and found that there has now been a change in the approach to the delineation of the administrative regulations of the executive authorities - before 2018, administrative regulations were divided into service regulations and function regulations, where service regulations are related to requests by private persons to the state represented by its bodies and officials - and function regulations are related to the implementation of continuous activities to perform assigned powers and exercise the established competence, after 2018, administrative regulations are divided into service regulations and control (supervision) regulations. According to the author, the established approach has allowed the above varieties of regulations to be merged into such a group of types of administrative regulations as administrative regulations for the implementation of state functions. Also the author concludes that it is necessary to adopt a special legislative act systemising the functions of the executive authorities and the administrative procedures they carry out in a single logical connection.

scholarly journals Functions of the state: concepts, classifications, scientific interpretations

1970 ◽  
pp. 406-410
Author(s):  
Marharyta Butsan
Keyword(s):  
Rule Of Law ◽  
Public Life ◽  
The State ◽  
Political Life ◽  
Historical Period ◽  
Legal Form ◽  
The Rule Of Law ◽  
The Government ◽  
Cultural Functions ◽  
State Functions

In the article the concept of state functions, realizing which the state carries out a targeted management impact on various spheres of a public life. They show that the government should do to achieve and implement the goals and tasks that lie before him in a certain historical period. Purposes of the functions of the state are the results that must be obtained in implementing the functions, goals can be immediate, intermediate, ultimate. On one stage of historical development, priority may be given to economic, the other political or socio-cultural functions, the third function of defense, etc. At the beginning of its inception, the state played a very small list of functions. The contents of most of them was of a pronounced class character. The functions manifest national characteristics of the country, because the state is obliged to provide the geopolitical interests of the ethnic group, to support the development of national culture, language, and the like. The contents and the list of functions to a large extent depend on the nature of the state, its social purpose in public life. The main duty of the state to maintain a level of social organization that would ensure not only the preservation of the integrity and prosperity of society as a whole, but also the needs of individuals. The article studies scientific approaches with respect to interpretation of the concept of functions, given the existing classification of state functions: the areas of activities of the state, duration and the like. The analysis of existing functions in Ukraine. The human rights function is currently the most relevant. Advocacy function has the expression in activities that are aimed at protecting the rights and freedoms of man and citizen, the rule of law and the rule of law in all spheres of public and political life. The peculiarities of exercise of the functions of the state are divided into legal and organizational. The legal form is a homogenous activity of state bodies related to the adoption of legal acts. Organizational form is a homogenous activity of the state aimed at creating organizational conditions to ensure functions of the state. In Ukraine there are three main forms of implementation of the activities of the state depending on types of activities: legislative, Executive, judicial. The basis for this separation is the provision of the Constitution of Ukraine, which is highlighted in these branches of government. In the implementation of all main functions of the state are actively involved all types of public power in Ukraine.

scholarly journals Raumaneignungen, Regeln und Profite in Dhakas Feld des Straßenhandels – Sozialgeographische Erklärungsversuche auf Grundlage von Bourdieus Theorie der Praxis

2014 ◽  
Vol 69 (1) ◽  
pp. 37-48 ◽  
Author(s):  
B. Etzold
Keyword(s):  
Public Space ◽  
Social Space ◽  
Physical Space ◽  
Social Geography ◽  
The State ◽  
Street Vendors ◽  
Street Vending ◽  
Theory Of Practice ◽  
Urban South ◽  
Spatial Appropriation

Abstract. The paper discusses street vendors' spatial appropriations and the governance of public space in Dhaka, the capital of Bangladesh. The much debated question in social geography how people's position in social space relates to their position in physical space (and vice versa) stands at the centre of the analysis. I use Bourdieu's Theory of Practice to discuss this dialectic relation at two analytical levels. On a micro-political level it is shown that the street vendors' social positions and the informal rules of the street structure their access to public space and thus determine their "spatial profits". At a macro-political level, it is not only the conditions inside the "field of street vending" that matter for the hawkers, but also their relation to the state-controlled "field of power". The paper demonstrates that Bourdieu's key ideas can be linked to current debates about spatial appropriation and informality. Moreover, I argue that Bourdieu's theory builds an appropriate basis for a relational, critical, and reflexive social geography in the Urban South.

Introduction

2017 ◽  
pp. 3-7
Author(s):  
Alberto Gianinetti
Keyword(s):  
The State ◽  
Basic Concepts ◽  
State Functions

Basic concepts are defined, such as what thermodynamics aims to, what a system is, which are the state functions that characterize it, what a process is.

Basic laws of thermodynamics

2005 ◽  
Author(s):  
Boris S. Bokstein ◽  
Mikhail I. Mendelev ◽  
David J. Srolovitz
Keyword(s):  
Physical Chemistry ◽  
Equilibrium State ◽  
General Scheme ◽  
Thermodynamic Description ◽  
External Disturbance ◽  
The State ◽  
System Parameters ◽  
Laws Of Thermodynamics ◽  
Small Set ◽  
State Functions

In this chapter, we first introduce the basic laws of thermodynamics and R17the most important thermodynamic functions. Even though many of the concepts introduced here will be familiar to many readers with a background in elementary physics, this chapter should not be ignored as it presents these concepts in the language of physical chemistry. Since these concepts form the basis of physical chemistry, this subject will make no sense without a firm footing in these fundamentals. Thermodynamics focuses on the thermal behavior of macroscopic systems (i.e. systems containing a very large number of particles). Thermal processes include both heat exchange between a system and its surroundings and work. The general scheme of a thermodynamic description of such processes can be described as in the picture: Thermodynamic descriptions are usually based upon experimental observations. Experiments can characterize the thermodynamic state of the system in terms of a small number of measurable parameters (e.g. temperature T and pressure p). The generalization of these measurements yields thermodynamics laws. Thermodynamic laws identify state functions that describe the system behavior solely in terms of the system parameters and not on how the system came to be in a particular state. Changes in the state functions during some process depend on only the intial and final states of the system but not on the path between them. Therefore, these changes can be determined from calculations based on a very small set of data. Thermodynamics can be used to answer such questions as (1) is a particular process possible? (2) can the system spontaneously evolve in a particular direction?, and (3) what is the final or equilibrium state? all under a given set of conditions. Equilibrium can be understood as the state in which the system parameters no longer evolve, there are no fluxes of matter or energy through the system, and for which all small disturbances decay. According to the zeroeth law of thermodynamics any isolated system will eventually evolve to an equilibrium state and will never spontaneously leave this state (without a substantial external disturbance).

scholarly journals Conditions of equivalence of effects for the solid body from incompressible material

2018 ◽  
Vol 196 ◽  
pp. 01031 ◽  
Author(s):  
Elephan Agakhanov ◽  
Murad Agakhanov ◽  
Lyudmila Sultanova ◽  
Zabiya Hizriyeva
Keyword(s):  
Solid Body ◽  
Design Research ◽  
Rotating Disk ◽  
Experimental Methods ◽  
Incompressible Material ◽  
Engineering Practice ◽  
General View ◽  
Deformable Solid ◽  
Special Cases ◽  
Deformable Solid Body

Polemicizing with the existing opinion that modern numerical methods allow to solve practically any problem of mechanics, it should be noted that analytical and experimental methods still are relevant, and a complex of methods leads to development of mechanics of a deformable solid body. At present one of the most important directions of development of mechanics of a deformable solid body is creation of the approaches that allow to combine organically great computing opportunities of modern supercomputers with experimental methods of the material and design research. In engineering practice at production of designs and products incompressible materials are widely used. Assessment of their durability requires detailed studying of deflected mode caused by action of various loadings and forces. For a solid body from incompressible material, using the resolving equations set of mechanics of a deformable solid body, at action of the compelled deformations of a general view, volume and superficial forces conditions of equivalence are established. It is shown that the known solutions are special cases of the established equivalence conditions. The efficiency of the analytical solution of a three-dimensional task on the rotating disk from incompressible material is shown by the method of equivalence of effects.

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