scholarly journals What Is the Real Clausius Statement of the Second Law of Thermodynamics?

Entropy ◽  
2019 ◽  
Vol 21 (10) ◽  
pp. 926 ◽  
Author(s):  
Ti-Wei Xue ◽  
Zeng-Yuan Guo
Keyword(s):  
Second Law Of Thermodynamics ◽  
Fundamental Principle ◽  
Quantitative Relation ◽  
Second Law ◽  
The Real ◽  
Average Temperature ◽  
Temperature Method ◽  
Higher Temperature ◽  
The Difference ◽  
Lower Temperature

In this paper, we first analyze the difference between the second law of thermodynamics and the laws in other disciplines. There are some phenomena in other disciplines similar to the Clausius Statement of the second law, but none of them has been accepted as the statement of a certain law. Clausius’ mechanical theory of heat, published in the nineteenth century, is then introduced and discussed in detail, from which it is found that Clausius himself regarded “Theorem of the equivalence of the transformation of heat to work, and the transformation of heat at a higher temperature to a lower temperature”, rather than “Heat can never pass from a colder to a warmer body without some other change”, as the statement of the second law of thermodynamics. The latter is only laid down as the fundamental principle for deriving the theorem of the equivalence of transformations. Finally, based on the theorem of the equivalence of transformations and the average temperature method, a general quantitative relation among the heat, the work, and the temperatures is obtained for arbitrary cycles, which is thus recommended as an alternative mathematic expression of the second law. Hence, the theorem of the equivalence of transformations is the real Clausius Statement of the second law of thermodynamics.

EFFECTS OF THYROIDECTOMY ON THE CHEQUERED WATER-SNAKE, NATRIX PISCATOR

1974 ◽  
Vol 60 (3) ◽  
pp. 517-NP ◽  
Author(s):  
J. P. THAPLIYAL ◽  
S. C. GUPTA ◽  
R. K. GARG
Keyword(s):  
Fatty Acids ◽  
Body Weight ◽  
Adipose Tissue ◽  
The Body ◽  
Thyroid Activity ◽  
Carbohydrate And Lipid Metabolism ◽  
Water Snake ◽  
Higher Temperature ◽  
The Difference ◽  
Lower Temperature

SUMMARY Thyroidectomy decreased the body weight and the height of the cells lining the sex-segment of the kidney of the Chequered Water-snake, Natrix piscator maintained at 30 °C; at 40 °C the liver, kidney and gonad were also affected. At the higher temperature, thyroidectomy influenced significantly protein, carbohydrate and lipid metabolism. At 30 °C, only a decrease in the rate of esterification of the free fatty acids in the liver and of their release from the adipose tissue was observed. The difference in the effect of thyroidectomy at 30 and 40 °C is explained by suggesting that thyroid activity was low in animals maintained at the lower temperature and high in those kept at the higher temperature.

Dynamics of Zero-Mass Gibbs Interfaces

1998 ◽  
Vol 05 (05) ◽  
pp. 1015-1022 ◽  
Author(s):  
Liqiu Wang
Keyword(s):  
Conservation Laws ◽  
Constitutive Equations ◽  
Second Law Of Thermodynamics ◽  
Second Law ◽  
Interfacial Region ◽  
The Real ◽  
Zero Mass

Conservation laws and the second law of thermodynamics are used to study the dynamics of zero-mass Gibbs interfaces, which can be used to approximate the behavior of the real interfacial region. The work is characterized by the introduction of quantities representing the net action of two bulk phases on the interface and by the use of the second law of thermodynamics to provide the required constitutive equations.

scholarly journals X.—On the Economy of Heat in Expansive Machines, forming the Fifth Section of a Paper On the Mechanical Action of Heat

1853 ◽  
Vol 20 (2) ◽  
pp. 205-210 ◽  
Author(s):  
William John Macquorn Rankine
Keyword(s):  
Constant Temperature ◽  
Mechanical Action ◽  
The Body ◽  
Original Volume ◽  
Higher Temperature ◽  
The Difference ◽  
Lower Temperature ◽  
Quantity Of Heat

(39.) A machine working by expansive power consists essentially of a portion of some substance to which heat is communicated, so as to expand it, at a higher temperature, being abstracted from it, so as to condense it to its original volume, at a lower temperature. The quantity of heat given out by the substance is less than the quantity received; the difference disappearing as heat to appear in the form of expansive power.The heat originally received by the working body may act in two ways: to raise its temperature, and to expand it. The heat given out may also act in two ways: to lower the temperature, and to contract the body. Now, as the conversion of heat into expansive power arises from changes of volume only, and not from changes of temperature, it is obvious, that the proportion of the heat received which is converted into expansive power will be the greatest possible, when the reception of heat, and its emission, each take place at a constant temperature.

scholarly journals LABOUR MARKET REFORM: GENERAL TRENDS, EXISTING CHALLENGES, DIRECTIONS OF ADVISORY SUPPORT

2021 ◽  
pp. 50-59
Author(s):  
Yuriy Bakun ◽  
Mykhaylo Ksenofontov ◽  
Lyudmyla Dudnik
Keyword(s):  
Financial Reporting ◽  
Balance Sheet ◽  
Financial Statements ◽  
Fair Value ◽  
Fundamental Principle ◽  
The Real ◽  
Historical Cost ◽  
Current Accounting ◽  
Financial Position ◽  
The Difference

Introduction. The article describes the concept of valuation of assets, liabilities and capital, as well as the presentation of the information received in the accounting and financial statements. Methods. Methods of structural and logical analysis, comparison and generalization of requirements of national and international accounting standards and current legislation are used in this article. Results. The economic content of the assessment of objects at the reporting date as an important methodological tool of accounting is in-depth. The principal difference between the fundamental principle of accounting - monetary valuation and evaluation as a procedure performed for the purpose of obtaining the real (fair) value of the property of the enterprise as of the reporting date is set out. The expediency of using historical value in current accounting and fair value is substantiated - when the information about the property of the enterprise in the financial statements is displayed. It has been proved that the assessment as one of the fundamental principles of accounting and assessment as a procedure that is carried out in order to obtain the real (fair) value of the property, liabilities and capital of the enterprise as of the reporting date should be distinguished. The expediency of using historical value in current accounting and fair value has been substantiated - when the information about the property of the enterprise in the financial statements is displayed. The assessment has been designated as the principle of accounting and as a procedure performed to establish the fair (fair) value of the property, liabilities and capital of the enterprise at the reporting date. To do this, the balance sheet proposes to reflect the results of their accounting for historical cost, and in the statement of financial position present information about the financial position, taking into account the fair value of assets, liabilities and equity as of the reporting date. Discussion. The difference between the indicators of these reports is recommended to be presented in the notes, accordingly, it will provide interested parties with reliable information about the financial position and will give reasons to recognize the extent to which the revalued methods of revaluation of assets, liabilities, capital and management effectiveness are used. Keywords: accounting, assessment, financial reporting, accounting principles, fair value, accounting procedure.

scholarly journals Investigation of biological peculiarities of Blumeriella jaapii

2017 ◽  
Vol 38 (SI 2 - 6th Conf EFPP 2002) ◽  
pp. 399-401
Author(s):  
A. Valiushkaite
Keyword(s):  
Relative Humidity ◽  
Incubation Temperature ◽  
Microscopic Analysis ◽  
Disease Prevalence ◽  
Optimal Conditions ◽  
Natural Conditions ◽  
Blumeriella Jaapii ◽  
Average Temperature ◽  
Higher Temperature ◽  
Lower Temperature

Leaf spot pathogen is characterized as a highly developed parasite after investigation of development peculiarities of the fungus in pure culture and natural conditions. The degree of correlation depended on the medium. Impact of incubation temperature on Blumeriella jaapii (Rehm) Arx growth was different. Fungi colonies formed more intensively and their diameter increased significantly under higher temperature. Optimal conditions for the disease prevalence are 15–20°C and moisture. Relative humidity and precipitation influenced maturation of ascomycetes and discharge of ascospores (r = +0.89). Microscopic analysis of leaves showed that during winter thaw, when the average temperature is about 0 ± 5°C and relative humidity is higher than 70%, was possible to detect mature ascomycetes and conidia. It is possible to affirm that lower temperature than it was assumed is sufficient for formation of ascomycetes.

INVESTIGATION OF THE CONTRIBUTION FOR THE NONCOLLINEAR CHANNEL OF THE F(2P3/2,2P1/2) + H2/D2 REACTIONS ON FOUR DIABATIC POTENTIAL ENERGY SURFACES

2012 ◽  
Vol 11 (03) ◽  
pp. 561-571 ◽  
Author(s):  
TING-XIAN XIE
Keyword(s):  
Potential Energy ◽  
Barrier Height ◽  
Cross Sections ◽  
Rate Constants ◽  
Potential Energy Surfaces ◽  
Collision Energy ◽  
Higher Temperature ◽  
The Difference ◽  
Lower Temperature ◽  
Energy Surfaces

We performed the nonadiabatic time-dependent wave packet calculation on the four diabatic potential energy surfaces, which have the different barrier height, to investigate the contribution of the noncollinear channel for the F (2P) + H2/D2 (v = j = 0) reactions. The reaction probabilities, integral cross-sections, and rate constants are presented. The results indicate that the probabilities as the function of the collision energy have an obvious translation. The reactive activity of the reactions comes from the noncollinear reactive channel. The bent barrier height would decrease the reactive activity. The integral cross-sections are in the order of AWS < LWA-5 < LWA-78 ≈ MASW, which is opposite to that of the bent barrier height. At the lower temperature, the difference of the rate constants is unambiguous. As the temperature increases, the difference reduces. At the higher temperature, the rate constants computed on the four potential energy surfaces are close.

scholarly journals CONCEPT OF ASSESSMENT OF ACCOUNTING OBJECTS AND THE INFORMATION DISPLAY IN ACCOUNTING AND FINANCIAL STATEMENTS

2021 ◽  
pp. 42-49
Author(s):  
Sofiia Kafka ◽  
Larysa Halyuk ◽  
Olga Stepanyuk ◽  
Yuriy Chuchuk
Keyword(s):  
Financial Reporting ◽  
Balance Sheet ◽  
Financial Statements ◽  
Fair Value ◽  
Fundamental Principle ◽  
Information Display ◽  
The Real ◽  
Current Accounting ◽  
Financial Position ◽  
The Difference

Introduction. The article describes the concept of valuation of assets, liabilities and capital, as well as the presentation of the information received in the accounting and financial statements. Methods. Methods of structural and logical analysis, comparison and generalization of requirements of national and international accounting standards and current legislation are used in this article. Results. The economic content of the assessment of objects at the reporting date as an important methodological tool of accounting is in-depth. The principal difference between the fundamental principle of accounting - monetary valuation and evaluation as a procedure performed for the purpose of obtaining the real (fair) value of the property of the enterprise as of the reporting date is set out. The expediency of using historical value in current accounting and fair value is substantiated - when the information about the property of the enterprise in the financial statements is displayed. It has been proved that the assessment as one of the fundamental principles of accounting and assessment as a procedure that is carried out in order to obtain the real (fair) value of the property, liabilities and capital of the enterprise as of the reporting date should be distinguished. The expediency of using historical value in current accounting and fair value has been substantiated - when the information about the property of the enterprise in the financial statements is displayed. The assessment has been designated as the principle of accounting and as a procedure performed to establish the fair (fair) value of the property, liabilities and capital of the enterprise at the reporting date. To do this, the balance sheet proposes to reflect the results of their accounting for historical cost, and in the statement of financial position present information about the financial position, taking into account the fair value of assets, liabilities and equity as of the reporting date. Discussion. The difference between the indicators of these reports is recommended to be presented in the notes, accordingly, it will provide interested parties with reliable information about the financial position and will give reasons to recognize the extent to which the revalued methods of revaluation of assets, liabilities, capital and management effectiveness are used. Keywords: accounting, assessment, financial reporting, accounting principles, fair value, accounting procedure.

On Hyperbolic Heat Conduction and the Second Law of Thermodynamics

1995 ◽  
Vol 117 (2) ◽  
pp. 256-263 ◽  
Author(s):  
C. Bai ◽  
A. S. Lavine
Keyword(s):  
Heat Conduction ◽  
Heat Conduction Equation ◽  
Model Problem ◽  
Second Law Of Thermodynamics ◽  
Hyperbolic Type ◽  
Conduction Equation ◽  
Second Law ◽  
Hyperbolic Heat Conduction ◽  
The Difference ◽  
Modified Equation

For situations in which the speed of thermal propagation cannot be considered infinite, a hyperbolic heat conduction equation is typically used to analyze the heat transfer. The conventional hyperbolic heat conduction equation is not consistent with the second law of thermodynamics, in the context of nonequilibrium rational thermodynamics. A modified hyperbolic type heat conduction equation, which is consistent with the second law of thermodynamics, is investigated in this paper. To solve this equation, we introduce a numerical scheme from the field of computational compressible flow. This scheme uses the characteristic properties of a hyperbolic equation and has no oscillation. By solving a model problem, we show that the conventional hyperbolic heat conduction equation can give physically wrong solutions (temperature less than absolute zero) under some conditions. The modified equation does not display these erroneous results. However, the difference between results of these two models is negligible except under extreme conditions.

Study of averaged collision strength of non-Maxwellian distribution in plasma

2017 ◽  
Vol 31 (23) ◽  
pp. 1750213
Author(s):  
Jian He ◽  
Qingguo Zhang
Keyword(s):  
Temperature Region ◽  
Electronic Energy ◽  
Atmospheric Plasma ◽  
Maxwellian Distribution ◽  
Kappa Distribution ◽  
Collision Strength ◽  
Higher Temperature ◽  
The Difference ◽  
Lower Temperature ◽  
Lower Temperature Region

In this paper, kappa distribution of electronic energy is discussed for non-Maxwellian distribution. Taking silicon III 189.2 nm line in solar atmospheric plasma as an example, we discuss the kappa distribution and the Maxwellian distribution when temperature varies from [Formula: see text] K to [Formula: see text] K, and we calculate the averaged collision strengths of the kappa distribution and the Maxwellian distribution. Results indicate that the kappa distribution is close to the Maxwellian distribution with the increase of parameter [Formula: see text], and the difference of the averaged collision strength between the kappa distribution and the Maxwellian distribution is not very large in the higher temperature region from [Formula: see text] K to [Formula: see text] K, while that is large in the lower temperature region from [Formula: see text] K to [Formula: see text] K. This discussion will be significant in study of plasma quantitatively.

The dielectric temperature characteristic of additives modified barium titanate having core-shell structured ceramics

1995 ◽  
Vol 10 (11) ◽  
pp. 2770-2776 ◽  
Author(s):  
Yung Park ◽  
Yoonho Kim
Keyword(s):  
Temperature Characteristic ◽  
Chemical Inhomogeneity ◽  
Temperature Characteristics ◽  
Ferroelectric Transition ◽  
Curve Versus ◽  
Higher Temperature ◽  
The Difference ◽  
Lower Temperature ◽  
Grain Core ◽  
Ferroelectric Transition Temperature

The dielectric temperature characteristics and microstructures of BaTiO3-based ceramics sintered with additives such as Sm2O3, CeO2, and Bi2O3:Nb2O5 were investigated using TEM, XRD, and EDS. For a Sm2O3-modified BaTiO3 ceramic whose additives were uniformly distributed in grains, the ferroelectric transition temperature (Tc) was shifted to a lower temperature, while the transition temperatures (T1 and T2) were shifted to a higher temperature. The additions of CeO2 and Bi2O3: PbO to BaTiO3 formed the chemical inhomogeneity which was composed of grain core, grain shell, and concentration gradient region. The dielectric curve versus temperature of CeO2-modified BaTiO3 has the shape of one strong peak, whereas BaTiO3 ceramics sintered with Bi2O3:Nb2O5 exhibit the broad dielectric constant at the low temperature region and 130 °C ferroelectric transition peak. The dielectric temperature characteristics of additives modified BaTiO3 were determined in terms of the chemical inhomogeneity and stress induced by the difference of the unit cell volume between grain core and grain shell.

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