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[PDF] Top 20 Electromagnetic Energy-Momentum Tensor for Non-Homogeneous Media in the Theory of Relativity

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Electromagnetic Energy-Momentum Tensor for Non-Homogeneous Media in the Theory of Relativity

Electromagnetic Energy-Momentum Tensor for Non-Homogeneous Media in the Theory of Relativity

... — The tensor calculus, using certain suitable transformations, permits to establish the expression of the energy-momentum tensor, also called energy quantity ... See full document

12

Braz. J. Phys.  vol.40 número3

Braz. J. Phys. vol.40 número3

... metric tensor, both in three and four dimensions that con- tain such ...derivatives of the tetrad fields are fea- ...that the difficulties regarding the problem of ... See full document

4

Energy and momentum for the electromagnetic field described by three outstanding electrodynamics

Energy and momentum for the electromagnetic field described by three outstanding electrodynamics

... ways of obtaining the expression for the total energy and momentum related to a given relativistic field such as the Maxwell ...field. The first, which incidentally is ... See full document

7

Braz. J. Phys.  vol.36 número4A

Braz. J. Phys. vol.36 número4A

... survey of the Casimir effect, showing that its origin is related to ex- periments on colloidal ...methods of computing Casimir forces, namely: the global method introduced by Casimir, based on ... See full document

13

Evaluation of susceptibility of the ZRE1 alloy to hot cracking in conditions of forced strain

Evaluation of susceptibility of the ZRE1 alloy to hot cracking in conditions of forced strain

... work in combination with industrial tests of casting welding show that the causes of high-temperature brittleness are the partial tears of the structure and the hot ... See full document

6

Criterion for selection the optimal physical and chemical properties of cobalt aluminate powder used in investment casting process

Criterion for selection the optimal physical and chemical properties of cobalt aluminate powder used in investment casting process

... effect of modification of the surface layer of the castings made from superalloys: Inconel 713C, René 77 and MAR-M 509 was investigated on the cross sections of the ... See full document

6

Angular momentum and energy-momentum densities as gauge currents

Angular momentum and energy-momentum densities as gauge currents

... general relativity, the conservation of the energy- momentum tensor of any matter field is usually obtained as a consequence of the invariance ... See full document

6

The Economics of Sub-optimal Policies for Traffic Congestion

The Economics of Sub-optimal Policies for Traffic Congestion

... is the work of Gallego, Montero, and Salas ...policies, in Mexico City and Santiago (Chile), aimed at reducing congestion and ...find the policies that impose driving restrictions may lead to ... See full document

27

ON THE DEVELOPMENT OF LOGIC IN BRAZIL II: INITIATIVES IN BRAZIL RELATED TO LOGIC AND BRAZILIAN RESEARCH GROUPS DEDICATED TO LOGIC

ON THE DEVELOPMENT OF LOGIC IN BRAZIL II: INITIATIVES IN BRAZIL RELATED TO LOGIC AND BRAZILIAN RESEARCH GROUPS DEDICATED TO LOGIC

... In the city of Rio de Janeiro, logic has been cultivated by a community of ...At the Pontifícia Universidade Católica do Rio de Janeiro (PUC-RJ), Oswaldo Chateaubriand has made ... See full document

19

Braz. J. Phys.  vol.35 número4B

Braz. J. Phys. vol.35 número4B

... compare the value of Ω predicted by general relativity with Ω ST , in the particular situation where the Brans-Dicke theory is under consideration, we must ascribe values ... See full document

5

Energy and angular momentum of the gravitational field in the teleparallel geometry

Energy and angular momentum of the gravitational field in the teleparallel geometry

... theories of gravity have been considered a long time ago in connection with attempts to define the en- ergy of the gravitational field ...studying the properties of ... See full document

12

Assessment Of Some Acceleration Schemes In The Solution Of Systems Of Linear Equations.

Assessment Of Some Acceleration Schemes In The Solution Of Systems Of Linear Equations.

... Abstract: In this paper, assessment of acceleration schemes in the solution of systems of linear equations has been ...studied. The iterative methods: Jacobi, Gauss-Seidel ... See full document

8

CONTINUOUS CREATION IN THE PROBABILISTIC WORLD OF THE THEOLOGY OF CHANCE

CONTINUOUS CREATION IN THE PROBABILISTIC WORLD OF THE THEOLOGY OF CHANCE

... question in the positive: Yes, He can, because He is the most perfect being and His omnipotence is absolutely ...underlying the answer to the last question is that the risk is ... See full document

16

Application of time-series analysis for prediction of molding sand properties in production cycle

Application of time-series analysis for prediction of molding sand properties in production cycle

... sets the information content in re- sidual data was equal ...that the residual data may include important infor- mation and therefore it is advisable to apply a regression model for finding desired ... See full document

5

An Alternative Hypothesis for Special Relativity

An Alternative Hypothesis for Special Relativity

... concept of the refraction index can be used to produce superluminal processes by deploying special optical media with a refraction index n < ...Obviously, the experiments of Nimtz ... See full document

10

Assessment Of NPK In Human Male And Female Urine For Its Fertilising Potential In Agriculture

Assessment Of NPK In Human Male And Female Urine For Its Fertilising Potential In Agriculture

... irrespective of the type of treatment ...is the likelihood of cross-contamination with the use of urine separating (Ecosan) toilets ...part of the total ... See full document

9

Managament quality of tools in the planned housing casting

Managament quality of tools in the planned housing casting

... Subbotko, Methods of distribution of tool at units based on TM software of Guhring, Production Engineering Wroc ł aw University of Technology,(2006) 273- 280 (in Polish).. Bocheński, C[r] ... See full document

4

Bringing together gravity and the quanta

Bringing together gravity and the quanta

... structure of distant parallelism, also referred to as absolute or teleparallelism, was used by Einstein in the late nineteen twenties, in his attempt to unify gravitation with ... See full document

9

Studies of corrosion behaviour in acid environment of binary Mg-Li alloys for plastic forming

Studies of corrosion behaviour in acid environment of binary Mg-Li alloys for plastic forming

... The object of corrosion studies were as-cast samples of M g-Li alloys of 30 x 20 x 10 mm dimensions designated as: - alloy no. 1 containing 3,54% Li (monophase  hcp alloy), - alloy no. 2 ... See full document

4

The Existence Of Leading Islands Securing And The Border Areas Unitary State Of Indonesia An Analysis In Law Perspective

The Existence Of Leading Islands Securing And The Border Areas Unitary State Of Indonesia An Analysis In Law Perspective

... Abstract: The research was carried with the aim to discover the existence of securing the foremost islands and state border region of the Republic of Indonesia ... See full document

4

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