JOSA year 19 no. 2 (47)
eISSN 2068-3049

 

CONTENTS

 

 

 

SECTION A – Mathematics

 

 

1.      SURFACE FAMILY WITH A COMMON NATURAL GEODESIC LIFT OF A TIMELIKE CURVE IN MINKOWSKI 3-SPACE

(Evren Ergun, Ergin Bayram, Emin Kasap) / 265

2.    GENERALIZATION OF PTOLEMY’S THEOREM

(Tran Quang Hung) / 275

3.     ON D-PENCIL SURFACE BY USING DARBOUX FRAME IN MINKOWSKI 3-SPACE

(Muhammed T. Sariaydin, Talat Korpinar) / 281

4.     MORGAN-VOYCE MATRIX METHOD FOR GENERALIZED FUNCTIONAL INTEGRO-DIFFERENTIAL EQUATIONS OF VOLTERRA-TYPE

(Mustafa Ozel, Omur Kivanc Kurkcu, Mehmet Sezer) / 295

5.     ON IDEAL CONVERGENT DOUBLE SEQUENCES OF σ-BOUNDED VARIATION IN 2-NORMED SPACES DEFINED BY A SEQUENCE OF MODULI

(Vakeel A. Khan, Sameera A.A. Abdullah, Ayhan Esi, Kamal M.A.S. Alshlool) / 311

6.     A NEW APPROACH TO BENDING ENERGY OF ELASTICA FOR SPACE CURVES IN DE-SITTER SPACE

(Talat Korpinar, Ridvan Cem Demirkol, Vedat Asil) / 325

7.     A NUMERICAL ANALYSING OF THE GEW EQUATION USING FINITE ELEMENT METHOD

(Seydi Battal Gazi Karakoc) / 339

8.     SOME EXACT SOLUTIONS OF (3+1)-DIMENSIONAL SHALLOW WATER WAVE EQUATION AND (2+1)-DIMENSIONAL FIFTH-ORDER NONLINEAR EQUATION

(Unal Ic) / 349

9.     THE TIMELIKE BEZIER SPLINE IN MINKOWSKI 3-SPACE

(Hatice Kusak Samanci, Ozgur Kalkan, Serkan Celik) / 357

10.     EXTENSION OF VARIATIONAL INEQUALITIES WITH GENERALIZED WEAKLY RELAXED α-SEMI-PSEUDOMONOTONE MAPPING

(Zubair Khan, Khushbu, Mohd. Asif) / 375

11.     ON DUAL BICOMPLEX NUMBERS AND THEIR SOME ALGEBRAIC PROPERTIES

(Serpil Halici, Sule Curuk) / 387

12.     ON THE SOLVABLE OF NONLINEAR DIFFERENCE EQUATION OF SIXTH-ORDER

(Yasin Yazlik, Mujdet Gungor) / 399

13.     STATISTICAL PREDICTION USING TO FORECAST THE THEORY OF MARKOV CHAINS

(Alina Nastase (Bidireanu), Ana-Maria Comandaru (Andrei), Sorina-Geanina Stanescu, Marilena Peichea (Constantinescu), Denisa-Mihaela Coman, Constantin Aurelian Ionescu) / 415



SECTION B – Chemistry

 

 

1.      BIOCHEMICAL CHANGES IN THE EVOLUTION OF CHRONIC KIDNEY DISEASE ASSOCIATED WITH URINARY TRACT INFECTIONS

(Oana Mariana Cristea, Manuel Amzoiu, Cristina Ene, Emilia Amzoiu, Florica Popescu, Florin Dan Popescu, Lucretiu Radu, Rodica Sirbu) / 425

2.      IN VITRO RELEASE STUDIES OF ALENDRONATE FROM HA-AL COMPOSITE DEPOSITED ON TITANIUM METAL SUBSTRATE

(Luciana Teodora Rotaru, Renata-Maria Varut, Oana Nicolaescu, Maria Bubulica, Ionela Belu) / 443

3.      NEW MODEL THEORETICAL OF THE RHEOLOGICAL BEHAVIOR OF COCONUT OIL

(Ioana Stanciu) / 449

4.      ABOUT SUPRAMOLECULAR CHEMISTRY - HOW A MODERN AND REVOLUTIONARY SCIENTIFIC CONCEPT CAN BE PRESENTED TO THE STUDENTS AS CHEMISTRY OF EVERY DAY

(Bogdan-Catalin Serban, Octavian Buiu, Cornel Cobianu, Marius Bumbac, Cristina Mihaela Nicolescu) / 455

5.      IDENTIFICATION OF MOLECULAR FRAGMENTS RESPONSIBLE FOR THE ANTIMICROBIAL ACTIVITY OF ACETAMIDE DERIVATIVES

(Manuel Amzoiu, Emilia Amzoiu, Ionela Belu, Sofia Popescu, Gratiela Cheita, Denisa Amzoiu) / 469

6.      COPPER AND CHROMIUM LEVELS IN CANDIES AND CANDY PACKAGES

(Alina Soceanu, Simona Dobrinas, Ionela Carazeanu Popovici, Viorica Popescu, Adriana Merticariu) / 479



SECTION C – Physics

 

 

1.      PHOTOCATALYSIS OF MANGANESE DOPED SODIUM HEXA-TITANATE (Na2Ti6-xMnxO13)

(Navshad Alam, Vishal Singh Chandel, Ameer Azam) / 485

2.      SEM-EDAX INVESTIGATIONS ON ALUMINUM ALLOYS 2024 (AU4G1)

(Florina Violeta Anghelina, Ileana Nicoleta Popescu, Carmen Otilia Rusanescu, Dan Ungureanu) / 493

3.      TRANSIT TIME STUDY THROUGH THE BASE IN CASE OF DRIFT TRANSISTORS

(Gabriel Predusca) / 499

4.      CHEMICAL REACTION EFFECT ON MHD FLOW PAST AN IMPULSIVELY STARTED VERTICAL CYLINDER WITH VARIABLE TEMPERATURE AND MASS DIFFUSION

(Gaurav Kumar, Atul Kumar, Manoj Kumar Misra, Vibhawari Srivastava) / 513

5.      ANALYTICAL EVALUATION OF HOLTSMARK DISTRIBUTION OF ENERGIES AND ITS ROLE IN PLASMA MICROFIELDS

(Ebru Copuroglu, Tural Mehmetoglu) / 523

6.      TOWARDS NEURAL CONTROL OF THE MOBILE ROBOTS

(Florin Dragomir, Mihai Stefan Caramida, Otilia Elena Dragomir, Eugenia Minca) / 529