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1

Ponderomotive force in laboratory and co-moving frames of reference at the CGS and SI system of dimensional units

Rymarz C.

Journal of Technical Physics

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2001

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Vol. 42, no 3

367-372

EN

In this paper, the influence of the system of dimensional units on the uniqueness of the ponderomotive force has been considered. It was established that at the CGS Gauss system, the ponderomotive force is non-unique. The non-uniqueness follows from the so-called dimensional degeneration, what means that several values have the same dimension. Since all the electromagnetic fields, at the CGS Gauss system, have the same dimension, therefore any pair of them can be treated as the density of electromagnetic momentum. In the SI system of units, due to the lower (dimensional) symmetry, the dimensional degeneration disappears and only the pair of inductions D, B has the proper dimension for a ponderomotive force. Therefore the CGS Gauss system of units should not be used in the theory of combined electro-mechanical fields. The forms of ponderomative force have been formulated in the laboratory and co-moving frames of reference at the Gauss and SI systems of units. It has been also proved that the ponderomotive force is invariant under the change of the frame of reference.

2

Differential geometry in modeling the microstructural material media

Rymarz C.

Journal of Technical Physics

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2001

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Vol. 42, no 1

23-32

EN

The paper contains considerations, which concern an application of differential geometry to construction of a compatible theory of media with microstructure. Technologies of modern materials create a need for modeling the processes and phenomena occurring in such materials. Application of the differential geometry to this end is justified, since this mathematical theory is concisely and logically formulated and exhibits a high level of generality. Therefore the physical theories constructed with application of the geometry are, as usual, very effective. In this paper, a short introduction to the differential geometry is given. Further the outline of geometrical theory of defected media is presented. Main part of the considerations has been devoted to a construction of the micropolar media is a bundle space. The bundle space is a very fruitful extension of the tangent space, because it is Cartesian product of the classical (Euclidean} space and the microstructural fiber space.

3

Formowanie się atmosferycznych frontów głównych jako wynik procesu samoorganizacji

Rymarz C.

Biuletyn Wojskowej Akademii Technicznej

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2000

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Vol. 49, nr 3

51-74

PL

W pracy przedstawiono genezę i budowę atmosferycznego frontu, który oddziela masy o istnieniu różnym stopniu nagrzania. W dotychczasowych rozważaniach uwzględnia się jedynie warunek konieczny powstania i zaniku frontu. Sformułowano nowy warunek dostateczny, który ma związek z wystąpieniem zjawiska samo-organizacji w strukturach dysypatywnych. Zbadano ogólne i asymptotyczne kryteria spełnienia.

EN

Genesis and construction are presented of atmospheric main front, which separates the masses heated to significantly different degrees. In the to date studies the necessary condition for the front creation and decay is only considered. A new sufficient condition is given, which is connected with ocurring of self-organization effect in the dissipate structures. The general and asymptotic criteria of fulfillness are investigated.

4

Chaos and self-organization in living systems

Rymarz C.

Journal of Technical Physics

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1999

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Vol. 40, no 4

407-420

EN

In this paper, continuing the considerations contained in [6], a definition of the Living System (LS) has been introduced. It is determined as a branching chain of elementary links, which form the triade of life: birth, evolution, death. The scope of sciences, which make it possible to investigate the living systems has been presented. Two examples of the elementary links have been given and elements of a triade of "life" have been described. The main role of the phenomenon of self-organization for the LS existence has been underlined. The existence of two approaches to the self organization phenomenon investigation, variational and synergetic have been observed. The physical background of the LS has been presented, attention being paid to the role of entropy in the thermodynamic systems remaining far from the equilibrium. The role of the excess entropy, which enables the fluctuations to be organized, has been described. A double meaning of the entropy has been noticed : energetic and as a set of information on the investigated system, and their mutual relation has been discussed. Applying the synergetic approach, two examples of the elementary links realization have been presented. They are : Rayleigh-Benard problem and the kinetics of chemical reactions.

5

Chaos termiczny i deterministycznyczny oraz samoorganizacja w układach żyjących

Rymarz C.

Biuletyn Wojskowej Akademii Technicznej

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1999

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Vol. 48, nr 2

5-20

PL

W pracy, kontynuując rozważania zawarte w [6], wpro- wadzono definicję układu żyjącego. Określono go jako rozgałęziający się łańcuch ogniw elementarnych, które mają postać triady: narodziny, ewolucja, śmierć. Przedstawiono w skrócie zakres wiedzy umożliwiający rozwój badań struktur żyjących. Podano dwa przykłady ogniw elementarnych i scharakteryzowano elementy triady "życia", wskazując na podstawowe znaczenie zjawiska samoorganizacji. Zasygnalizowano istnienie dwóch metod badań powstawania i rozwoju zjawiska samoorganizacji: wariacyjnej i synergetycznej. Przedstawiono podstawy fizyczne układów żyjących, zwracając uwagę na rolę entropii w układach pozostających z dala od równowagi termodynamicznej. Omówiono rolę entropii nadmiarowej, której obecność umożliwia organizowanie się fluktuacji. Zwrócono przy tym uwagę na dwoistość pojęcia entropii: energetyczną i informacyjną oraz przeanalizowano ich relację. Stosując podejście synergetyczne przedstawiono dwa przykłady realizacji ogniw elementarnych z metrologii (problem Raileigha-Benarda) oraz z chemii (kinetyka reakcji chemicznych).

EN

Continuing discussion of Ref.6 it is introduced definition of a living system. it was defined as a chain branching of elementary cells of a triad from: birth evolution, death. In short, it is presented the knowledge range enabiling development of living structures investigation. Two examples of elementary cells are presented and elements of 'live' triad are characterized, indicating the fundamental meaning of self-organization effect. There are signalized two investigation methods of initiation and development of self-organization: variational and synergetic. The basics of physics of living structures are presented, showing the role of entropy in systems being far from thermodynamical equilibrium. The excess entropy is discussed, the presence of which enables organization of fluctuations. It is also pointed on the twofold meaning of entropy: energetic and informatic and the relation between them are analysed. Using the synergetic approach two examples were presented of elementary cell realization in meteorology (Raileigh-Benarda's problem) and in chemistry (kinematics of chemical reactions).

6

Nonuniqueness of electromagneto-mechanical interactions is condensed matter

Rymarz C.

Journal of Technical Physics

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1998

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Vol. 39, no 3-4

607-616

EN

In this paper some results of studies on the theory of the electromagnetic-mechanical coupled fields formulation are presented. The main attention has been paid to finding the causes of ambiguities in determination of a pondermotive force (PF), which models the electromagnetic fields (EM) action on the condensed matter. The influence of the choice of the system of dimensional units on the uniqueness of the ponderomotive force (PF) has been considered. The reason of the dimensional degeneration in CGS system of units has been explained. It is eliminated in SI units system. The studied are of a cognitive character, but their results are useful in practice (robotics, intelligent materials).

7

Główne fronty atmosferyczne oraz fotointerpretacje ich ewolucji i oddziaływań na podstawie zdjęć satelitarnych. Cz. 1, Główny front atmosferyczny jako osobliwa struktura energetyczna i jego typologia

Rymarz C., Jasiński J. M.

Biuletyn Wojskowej Akademii Technicznej

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1998

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Vol. 47, nr 4

5-26

PL

Przedstawiono analizę ewolucji frontów głównych oraz ich wzajemnych oddziaływań, przeprowadzoną z wykorzystaniem zdjęć satelitarnych. Główne fronty atmosferyczne rozpatrywano jako osobliwe struktury energetyczne. Przedstawiono typologię frontu polarnego.

EN

Main fronts evolution and their interaction analysis based on satellite images interpretation are presented. The main fronts are considered as peculiar energetic structures. Typology of the polar front is presented.