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).

Development of a State Tax Risk Management System

2020 ◽  
Vol 17 (6) ◽  
pp. 62-75
Author(s):  
A. V. Tikhonova
Keyword(s):  
Risk Management ◽  
General Scheme ◽  
Value Added ◽  
Comparison Method ◽  
The State ◽  
Scientific Methods ◽  
Traceability System ◽  
Road Map ◽  
State Tax ◽  
Presentation Methods

The article is devoted to the development of the concept of the state to manage its tax risks, based on a systematic approach. The author's concept presupposes the presence of the following elements logically arranged according to the principle "from the general to the particular": 1) mechanisms for managing tax risks, 2) disclosing methodological recommendations, 3) specific proposals for changing legislation. To achieve this goal, the author used general scientific methods (deduction and induction, analysis and synthesis, observation, description, generalization) and private scientific methods of cognition (comparison method, graphical and tabular data presentation methods). We have presented a brief overview of the main tax risks of the Russian Federation in the current economic environment, which are classified in four areas: 1) risks in the field of value added taxation; 2) risks in the field of taxation of profits and income; 3) risks, the source of which is Russia's membership in the Eurasian Economic Union; 4) customs risks. The author presents a general scheme of tax risk management by the state, which includes the context, goals and management strategy. The priority mechanisms for managing the tax risks of the state are formulated on the basis of the presented classification of tax risks. These areas include: introduction of an end-to-end product traceability system; substantiation of taxation methods; joint elimination of tax risks (Federal Tax Service, Federal Customs Service, Ministry of Labor, Federal Service for Financial Monitoring); optimization of tax administration costs on the part of both tax authorities and taxpayers; harmonization of indirect taxation, including duty-free trade; harmonization of international tax rules at the international level; selection of the most effective tools for eliminating multiple taxation. A draft "road map" has been developed to improve the management of state tax risks.

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.

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.

Ensemble-based deep meta learning for medical image segmentation

2021 ◽  
pp. 1-7
Author(s):  
Usman Ahmed ◽  
Jerry Chun-Wei Lin ◽  
Gautam Srivastava
Keyword(s):  
Image Segmentation ◽  
Deep Learning ◽  
Learning Algorithm ◽  
State Of The Art ◽  
Medical Image Segmentation ◽  
The State ◽  
Data Set ◽  
Deep Learning Algorithm ◽  
Meta Learning ◽  
Small Set

Deep learning methods have led to a state of the art medical applications, such as image classification and segmentation. The data-driven deep learning application can help stakeholders to collaborate. However, limited labelled data set limits the deep learning algorithm to generalize for one domain into another. To handle the problem, meta-learning helps to learn from a small set of data. We proposed a meta learning-based image segmentation model that combines the learning of the state-of-the-art model and then used it to achieve domain adoption and high accuracy. Also, we proposed a prepossessing algorithm to increase the usability of the segments part and remove noise from the new test image. The proposed model can achieve 0.94 precision and 0.92 recall. The ability to increase 3.3% among the state-of-the-art algorithms.

RESEARCH OF WAYS TO DEVELOP ACCURATE DIGITAL MODELS FOR OBJECTS AND NODES OF TRANSPORT INFRASTRUCTURE

2021 ◽  
Vol 4 (30) ◽  
pp. 114-121
Author(s):  
N. N. Maiorov ◽  
◽  
A. A. Dobrovolskaya ◽  
V. E. Taratun ◽  
◽  
...  
Keyword(s):  
General Scheme ◽  
The State ◽  
Unmanned Aircraft ◽  
Transport Network ◽  
Transport Infrastructure ◽  
Digital Model ◽  
Transport Systems ◽  
Digital Models ◽  
Other Information ◽  
System Nodes

The article solves the problem of finding a solution for building a digital model of the transport network or transport infrastructure object. On the basis of the analysis, the limitation of available solutions is given and the limited state of implementation of digital models in new modernizations of transport systems is fixed. The paper provides a general scheme of using documentation of the state of the transport system, nodes and elements and considers examples based on real transport systems. The paper examines the basic requirements for digital transport models and proposes a solution based on the use of unmanned aircraft systems. A model of formation of flight task variants is proposed and, as a proof of relevance of the research, the results of a real experiment are given. The task of modernizing a segment of the transport network of the city, the identification of the state of the site on the basis of data from unmanned aircraft system is considered. The article presents a solution to the problem, which has a high quality of building a digital model and the possibility of integration into other information systems for monitoring the condition and forecasting of development.

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.

Modeling and Control of a Rotary Crane

1985 ◽  
Vol 107 (3) ◽  
pp. 200-206 ◽  
Author(s):  
Y. Sakawa ◽  
A. Nakazumi
Keyword(s):  
Feedback Control ◽  
Equilibrium State ◽  
Open Loop ◽  
The State ◽  
Control Input ◽  
Loop Control ◽  
Modeling And Control ◽  
Control Scheme ◽  
Rotary Crane ◽  
And Control

In this paper we first derive a dynamical model for the control of a rotary crane, which makes three kinds of motion (rotation, load hoisting, and boom hoisting) simultaneously. The goal is to transfer a load to a desired place in such a way that at the end of transfer the swing of the load decays as quickly as possible. We first apply an open-loop control input to the system such that the state of the system can be transferred to a neighborhood of the equilibrium state. Then we apply a feedback control signal so that the state of the system approaches the equilibrium state as quickly as possible. The results of computer simulation prove that the open-loop plus feedback control scheme works well.

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