JOSA year 9 no.2 (11)
eISSN 2068-3049


CONTENTS

 

SECTION A Mathematics

 

1.      ON THE HYERS-ULAM STABILITY OF THE ARITHMETIC AND GEOMETRIC MEANS

(VASILE POP) / 160

2.      COMBINATORICS PROBLEMS ON A TRIUNGHIULAR BOARD

(VASILE POP) / 165

3.      COMPACTNESS OF SOME CLASSES OF CONVEX FUNCTIONS

(CORNELIU UDREA) / 173

4.      ABOUT SOME PARTICULAR CLASSES OF BOUNDED OPERATORS ON PSEUDO-HILBERT SPACES II

(LOREDANA CIURDARIU) / 178

5.      A NUMERICAL SOLUTION FOR AN INITIAL VALUE PROBLEM FOR ODE USING ARTIFICIAL NEURAL NETWORK

(EMIL LUNGU) / 188

6.      THE USING OF THE INTEGRATING FACTOR IN SOLVING OF DIFFERENTIAL STOCHSTIC EQUATION

      (DOINA CONSTANTA MIHAI) / 194

7.      SOME QUADRATURE FORMULAS BASED ON LINEAR AND POSITIVE OPERATORS

      (DAN BARBOSU, OVIDIU T. POP, DAN MICLAUS ) / 198

8.      SELF-PROPULSION OF THIN PROFILES. AN ANALYTIC APPROACH

      (STELIAN GRADINARU) / 206

9.      PATH COALGEBRA kQ AND RIGHT COMODULES OVER kQ

      (GEORGIANA VELICU) / 218

10.   Z-VALUED FUNCTION ON SEMIGROUPS, Z-VALUED SESQUILINEAR FORMS

      (LOREDANA CIURDARIU, P.GASPAR) / 224

11.   REVISITING THE POPOVICIU-BOHMAN-KOROVKIN THEOREM

      (ANDREI VERNESCU) / 236

12.   A FINITE DIFFERENCE SCHEME TO APPROXIMATE THE SOLUTION OF A TWO POINT BVP FOR A SEMILINEAR EQUATION

      (DINU TEODORESCU, EMIL LUNGU) / 242

13.   DECAYS ON SHORT TIME INTERVALS OF GLOBAL SOLUTION OF THE NAVIERSTOKES EQUATION IN GENERAL DOMAINS

      (ZDENEK SKALAK) / 248

 

SECTION B - Chemistry

 

1.      ANTIOXIDANT AND RADIOPROTECTIVE FEATURES OF ROSEMARY (ROSMARINUS OFFICINALIS) EXTRACTS

(MARIA MARIS, DAN A. MARIS, SILVIU JIPA, TRAIAN ZAHARESCU, ECATERINA TANASE, LAURA MONICA GORGHIU, MARIUS MARIS) / 262

2.      A QUARTZ CRYSTAL MICROBALANCE METHOD FOR THE CHARACTERIZATION OF NEW PHOTOCHROMIC MATERIAL

(CRISTIANA RADULESCU, IONICA IONITA, ANA MARIA ALBU, VALERICA GH. CIMPOCA, ION V. POPESCU, IOANA DANIELA DULAMA, ELENA IRINA MOATER, CLAUDIA STIHI) / 268

 

SECTION C - Physics

 

1.      WAXD INVESTIGATION OF THE SECOND ORDER RESIDUAL STRESS INTO THREE HIGH ALLOYED STEELS

(ION V. POPESCU, FLORINA VIOLETA ANGHELINA, ION I. PENCEA, EUGEN CATALIN SFAT) / 278

2.      CONSIDERATION REGARDING THE ANALYSIS TROUGH SPECTRAL METHODS OF LEADUM IN STEEL

(GHEORGHE VLAICU, IULIAN BANCUTA, PAVEL NICOLAE, ANCA GHEBOIANU, MARIANA BAHRIM, ION V. POPESCU) / 286

3.      ANALYSIS OF Cr, Fe, Mn, Ni AND Zn FROM MOSSES BY NAA, AAS AND ICP-AES METHODS

(ION V. POPESCU, MARINA FRONTASYEVA, CLAUDIA STIHI, GH. V. CIMPOCA, CRISTIANA RADULESCU, ANCA GHEBOIANU, CALIN OROS, GH.VLAICU, IULIAN BANCUTA, IOANA DANIELA DULAMA) / 292

4.      FUZZY LOGIC MODELING OF SOLAR RADIATION USED IN PHOTOVOLTAICS

(DORIN LET, ANDREEA STANCU) / 300

5.      VIRTUAL LABORATORY OF OSCILLATIONS

(MARIANA BAHRIM, MIHAELA VISINOIU) / 310

6.      CHARGE TRANSPORT IN SEMICONDUCTOR MATERIALS

(ANDREEA STANCU, DORIN LET, ZORICA BACINSCHI) / 316

7.      STUDY OVER OPTICAL ABSORPTION AND EMISSION IN SEMICONDUCTORS

(DORIN LET, ANDREEA STANCU, VALERICA GH. CIMPOCA) / 327

 

SECTION D - Arts

 

1.      THE MEDIEVAL ROYAL COURTS AND THE ARTS. CONSIDERATIONS REGARDING POLITICAL INTERPRETATION OF RELIGIOUS ART

      (ELISABETA NEGRAU) / 336

2.      BREATHING TECHNIQUES

      (FELIX GOLDBACH) / 341