JOSA year 24 no. 3(68)
eISSN 2068-3049

CONTENTS

SECTION A – Mathematics

1. NON-INVARIANT SUBMANIFOLDS OF ALMOST POLY-NORDEN RIEMANNIAN MANIFOLDS

(Mustafa Gök, Erol Kiliç) / 453

2. A NOTE ON THE THIRD FOCUS OF THE CARTESIAN OVAL

(Aleksandra Rosić) / 465

3. NEW ASYMPTOTIC EXPANSIONS AND INEQUALITIES FOR MILLS RATIO

(Jun-Ling Sun, Chao-Ping Chen, Cristinel Mortici) / 479

4. AN EFFECTIVE TECHNIQUE OF exp(-ϕ(ξ)) - EXPANSION METHOD FOR THE SCHAMEL-BURGERS EQUATION

(Khalid K. Ali, Seydi Battal Gazi Karakoc) / 495

5. THE COMPLEX-TYPE FIBONACCI -SEQUENCES IN FINITE GROUPS

(Ömür Deveci, Yeşim Aküzüm, Gamze Özdemir) / 505

6. TRAVELLING WAVE SOLUTIONS OF (1+1)-DIMENSIONAL MODIFIED BENJAMIN-BONA-MAHONY EQUATION (MBBME) BY (G′/G,1/G)-EXPANSION METHOD

(Azmat Liaqat, Ghulam Farid, Muhammad Bilal) / 515

7. A GENERALIZED APPROACH TO INTEGRATION PROCESS BY AUXILIARY FUNCTIONS

(Mehmet Pakdemirli) / 533

8. HASIMOTO SURFACES WITH POINTWISE 1-TYPE GAUSS MAP

(Kemal Eren, Soley Ersoy) / 545

9. BINARY πg-LOCALLY CLOSED SETS

(Muthu Vinoth, Raghavan Asokan, Annamalai Thiripuram) / 551

10. DIFFERENT PERSPECTIVE OF DARBOUX SLANT RULED SURFACES AND THEIR CONSTRUCTIONS VIA QUATERNIONS

(Emel Karaca, Esra Alpay) / 557

11. GAUSSIAN FERMAT NUMBERS, POLYNOMIALS AND THEIR ASSOCIATED TRANSFORMS

(Bahar Kuloğlu) / 573

12. ANALYSIS OF A NON-LINEAR RECURRENCE FORMULATED USING MATRIX PERMANENTS

(Ahmet Zahid Küçük, Mehmet Özen) / 591

13. NUMERICAL INVESTIGATION OF THE ALPHA PARAMETRIZED DTM WITH THE CLASSICAL DTM

(Ghulam Farid, Faiza Rehman, Muhammad Arshad, Kiran Shahzadi, Tayyba Zafar) / 603

14. GEOMETRIC INTERPRETATION OF MULTIPLICATIVE CALCULUS IN LORENTZIAN SPACE

(Hasan Es) / 613

15. A SIMPLE FORMULA FOR EVALUATING THE KELLER’S SEQUENCE

(Cristinel Mortici) / 627

16. PANEL DATA MODEL – MATHEMATICS ACHIEVEMENT OF COST RE-EDUCATION BASED ON THE IMPACT OF TOTAL COST VARIATION

(Constantin Aurelian Ionescu, Melinda Timea Fülöp, Dan Ioan Topor, Alexandra Delia Bugnariu, Nicolae Magdas) / 631

SECTION B – Chemistry

1. ELEMENTAL ANALYSIS BY XRF OF COLOR SAMPLES USED BY GIORGIO DE CHIRICO SAMPLED IN THE MASTER'S ATELIER AT THE HOUSE MUSEUM LOCATED IN PIAZZA DI SPAGNA IN ROME

(Simone Campanelli, Renato De Leone, Graziella Roselli ) / 645

2. MANNOSE - PEROXYDISULFATE REACTION: QUALITATIVE PRODUCT ANALYSIS, SURFACE EFFECT AND EXPERIMENTAL KINETIC MEASUREMENTS

(Mustafa J.A. Abualreish) / 663

3. WASTE TO VALUABLE MATERIALS: GREEN SYNTHESIS OF SILVER NANO-RODS FROM SPENT COFFEE GROUND EXTRACT

(Kadriye Ozlem Saygi, Ramazan Onay) / 681

4. ASSESSMENT OF DRINKING WATER QUALITY AND ASSOCIATED HEALTH RISK: A STATISTICAL APPROACH BASED ON PHYSICOCHEMICAL PARAMETERS AND HEAVY METALS CONTENT

(Sorina Geanina Stanescu, Andreea Laura Banica, Ioana Daniela Dulama, Raluca Maria Stirbescu, Mihaela Denisa Coman, Cristiana Radulescu) / 689

5. ANALYSIS AND STRUCTURAL INVESTIGATIONS ON NEOLITHIC PAINTED POTTERY FROM SUPLACU DE BARCĂU/PORŢ-CORĂU ARCHAEOLOGICAL SITE

(Anamaria Carstea (Elekes), Mihai Gligor, Ioan Alin Bucurica, Ioana Daniela Dulama, Cristiana Radulescu, Raluca Maria Stirbescu, Sorina Geanina Stanescu, Anca Irina Gheboianu) / 705

6. DETERMINATION OF HEAVY METALS CONTENT FROM CITRUS FRUIT PEELS

(Bradut Bogdan Minea, Cristiana Radulescu, Ioana Daniela Dulama, Andreea Laura Banica, Raluca Maria Stirbescu, Sorina Geanina Stanescu) / 725

SECTION C – Physics

1. ANALYSIS OF THE HYDRATION PROCESS OF CEM II/B-M COMPOSITE CEMENT

(Ionut Cosmin Florea, Crina Maria Bucur, Cristina Elena Diaconescu, Eleonora Andreea Florea, Camelia Elisabeta Ichim) / 735

2. ASSESSMENT OF DELAYED HYDRIDE CRACKING IN CANDU PRESSURE TUBE USING THE PROCESS ZONE WITH CREEP EQUATION FROM ARTIFICIAL NEURAL NETWORK MODELLING

(Livia Stoica, Vasile Radu, Denisa Toma, Alexandra Jinga) / 747

3. THERMODYNAMIC ANALYSIS OF SOLAR THERMAL HEAT INPUT IN HVACR CLIMATE CONTROL SYSTEMS

(Andreea-Mihaela Let, Viviana Filip, Ioan-Alin Bucurica, Simona Mihai, Dorin-Dacian Let) / 759