AMSE Periodicals 2002: contents

Advances A-2002

Vol. 39 nº 1

- "Some properties of the periodic groups of shunkov". V.I. Senashov…… 1

- "Properties of groups with points". V.I. Senashov; E.N. Iakovleva……… 21

- "Persistence in a two species nonperiodic coefficient, nonlinear
relation, competition systems". Yinping Xhang; Jitao Sun………………… 33

- "Generalization and application for the solution of a system of
nonlinear matrix equations". Mihra M. Salama…………………………….. 41

- "A norm condition for the convergence of the solution of riccati equation".
Mihra M. Salama…………………………………………………………….. 53

Vol 39 nº 2

- "Error investigation in the interior of an interior Laplace´s problem
using borundary elements". J.M Mango; Y. Kaahwa………………………. 1

- "Maximum-entropy approach in non-linear/programs". P. Jana;
S.K. Mazumder……………………………………………………………… 19

- "Neural network approach for N-dimensional fourier series" J. Praveen;
M.V. Ramana Murthy……………………………………………………….. 29

- "Interaction among error-methods for error-elimination of decision-
making". Liu Shiyong; Guo Kaizhong; Zhang Tianchun…………………… 43

-"Decision making under condition of uncertainty. Entropy change of
fuzzy error system" Liu Shiyong; Guo Kaizhong; Zhang Tianchun………… 53

Vol. 39 nº 3

-"On the graphical representation of semisimple lie algebra".
Medha Ahmed Rahka ( Saudi Arabia )…………………………………… 1
-"Divergence of the matter element systems and its application".
Yang Guowei; Zhou Xianpu; Tu Xuyan ( China )………………………... 29
-"A new solution for the two nonlinear matrix equations for transforming
systems of two-time scale property". M.M. Salama ( Egypt )……………. 49

Vol. 39 nº4
-"Logical relationship between fuzzy error logical decomposition words
and a pre-decomposed no"words". Guo kaizhong; Liu Shiyong ( China ).. 1
-"Exploraton and application of redundancy system in decision making-
relation between fuzzy error logic increase transformation word and
connotative model implication word" Liu Shiyong;
Guo Kaizhong (China)……………………………………………………… 17
- Substantail change of decision-making environment-mutation of fuzzy
error system". Liu Shiyong; Guo Kaizhong (China)……………………….. 29
- Introduction for the theory of error-eliminating" Guo Kaizhong;
Liu Shiyong (China)………………………………………………………. 39

Advances B-2002

Vol. 45 nº 1

- "Recognition process of handwritten and typed arabic letters".Nuhammad Al-Shridah; Ahmad Sharieh. 1

- "Information training technology: learner´s memory state model". M. Karasyova; T. Kovaleva; E. Soruzdaleva.. 21

- "Control strategy for contact tracking of a physically determined contour by an industrial robot end-effector".
Sergiu Boris Cononovici; Wladimir Racovita......................................... 33

- "Otpimal economic dispacht via artificial neural networks".Ebtisam M. Saied....... 45

- "Karhunen-loeve vs. Discrete cosine transform feature extraction for handritten character recognition",
N. Liolios; N. Fahotakis;G. Kokkinakis........................................... 57

Vol. 45 nº 2

- "On the accuracy and asymptotic convergence of widely used estimators for autoregressive approximation
of mixed ARMA models".M.O. Salau............................................ 1

- "Multisensor data fusion and its applications". Shutao Li;Yaonan Wang..... 19

- "Three dimensional analysis of a radial type electromagnetic bearingusing finite element method".
K. Prabhakaran Nair; M.P.Sreejit.................................................................................................................................. 39

- "A hybrid neural network model for character recognition of hand written numerals".
Ali Hamza A.: Mahmoud Majid A.B................................................................................................................. 53

Vol. 45 nº 3

- "A fuzzy approach based goal programming to generate a priory vector in the analytical hierarchy process".
Waied F. Abd El-Wahed.................................................................................. 1

- "A fuzzy interpretative structural model of the facility locations for large-scale construction system".
Hu Zhigen; Fang Debin............................................................................................................................................. 27

- "Extreme value of fuzzy error system with change of time and space-zero faults trend of significant decision".
Liu Shiyong; Guo Kaizhong......................................................... 39

- "Fuzzy error system with change of time and space-the effect of change of time and space on decision making".
Liu Shiyang; Guo Kaizhong.......................................................... 49

-"A novel improved median filter for the removal of impulse noise from highly corrupted images".
Shutao Li; Yaonan Wang........................................................................................................................................ 61

Vol. 45 nº 4

- "Adaptive load frequency control using neuro-genetic algorithm".

Ahmed Bensenouci; Abdel Ghany M. Abdel Ghany;

Mohamed N. Said-Ahmad; Salah A. Alghamdi.. 1

• "A cooperative decision-making multi perspective expert system for

respiratory system diseases". Musbah Jumah Aqel 21

- "Multisensor image fusion: concept, method and applications".

Shutao Li; Yaonan Wang. 29

- "Study of noise overside on the propagated L-bard satellite

electromagnetic waves". A.M. Swidan 57

- "Expert system based automated electrocardiogram measurement

and interpretation". Musbah J. Aqel; Majid A. Al-Taee.. 6

Advances C-2002

Vol. 57 nº1

• "Optimal guaranted cost control of uncertain discrete-time

systems with delayed state". Li Yu 1

• "Robust H_∞ control of discretetime singular systems with

exogeneous disturbance". Xie Xiangsheng.. 13

• "A composite control strategy for a two-link constrained flexible

manipulator". Liu Keping; Li Yuanchun; Hong Tao; Cheng Qing… 21

• "Stability for linear large-scale systems with strong coupling in

single direction". Gong-You Tang. 35

• "DC motors speed asynchronization in nonlinear process by

selective state feedback and integral control". Ashab Mirza;

Sarfraz Hussain.. 45

Vol. 57 nº2

-" Design and analysis of an optimally convex controller in

akgebraic framework for a micro-insulin dispenser system".

A. Sutradhar; A. S. Chaudhuri. 1

-" A new method of multilevel feedback control of interconnected

dynamical time-delay systems" K. Permar; S. Shukla 15

-"Reduction of large scale systems by simplified stability

equation approach". G.V.K.R. Sastry; G. Raja Rao 39

-"Feedforward and feedback optimal control for systems with

setp disturbances". Gong-You Tang; Zhao-Hui Sun;

Zhong-Qing Yu. 53

Vol. 57 nº 3

- "A study of fuzzy logic dead beat controller". M.F. Qureshi;
G.P. Chhalotra; R. Chauhan; S.K. Tiwari; M. K. Misra ( India )……….. 1
- "Coefficients and functionals of sensitivity for dynamic systems
described by integral equations with dead time" Anatolij
Rouban ( Russia )………………………………………………………… 15
- "Constrained generalised predictive control using conjugate
gradient method". Salim Filali; Karim Kemih; Aissa Kiass (Algeria)….. 35
- "Memoryless robust H8 control of uncertain discrete-time systems
with delayed state". Yurong Nan ( China )……………………………….. 47
- "The design of robust stabilizing controller for uncertain linear
system with distributed delay" Jundong Bao; Fieqi Deng;
Qi Luo ( China )…………………………………………………………. 56

Vol. 57 nº 4 page
-"Modelling and control of low frequency oscillation existing in
a synchronous generator connected to infinite bus". K.A.Sattar;
M.A. Al-Taee Jordan; I.I. Hamad ( Iraq )………………………………… 1
- "Variable structure control of distributed parameter systems".
Xiao Huimin ( China )…………………………………………………… 17
- "Optimal decentralized control law for an arbitrary number of
interconnected units" Kasim A. Rachid ( Jordan )……………………… 29
- "Optimization of advanced fusion fuels". D. Rastovic ( Croatia )….. 39
- "Design of robust sliding hyperplanes for parametric uncertain
systems with time-delay". Cun-Chen Gao ( China )…………………….. 49

Advances-D 2002

Vol 7 nº 3

- "Multicast algorithms for all-port wormhole-routed 3D mesh networks"
Ismail Ababneh ( Jordan )……………………………………………………. 1
-"On large scale linear vector optimization problems with single
parameters in the objective functions". Tarek Hanafi
M. Abouelenien ( Egypt )……………………………………………………. 19
- "Fault-tolerant software architecture creation model based on reiability
evalutation". Igor V. Kovalev; Renat V. Younoussov ( Rusia )…………….. 31
- "Two modified estimators for the variance of one-parameter exponential
distribution with type-I censoring". Housila P.
Singh; Sushil K.Shukla ( India )………………………………………………. 45
- "A fault tolerant broadcast routing algorithm based on cube algebra for
hipercube multicomputers". S. Günes; N. Yilmaz; N. Allahverdi ( Turkey)…. 53

Vol. 7 nº 3

- Computer based optimal planning fo engineergin processes".
M. Alboelela ( Egypt )…………………………………………………………. 1
- "Forecasting on a tree with additional ring connections"
Prasanta K. Jana ( India )………………………………………………………. 15
- A novel parallel structure for computation of discrete wavelet transform
of images". V.P. Devassia; M.G. Mini; Tessamma Thomas ( India )…………. 25
- "Design of a wide area network ( WAN ) for Iraq Universities".
W.A. Mahmoud; S.A. Nsayef ( Iraq )………………………………………….. 41
- "Migration as a factor of cyclic epidemic process". V.M. Eskov;
V.A. Rachkovskaya ( Russia )………………………………………………….. 53

Modelling A-2002

Vol. 75 nº 1

- "A study of electrical load diversity factor applicable in senior staff

residential quarters". Usifo F.O.; Ighalo G.I 1

- "Design of shunt filter for steel industry as per IEEE 519-1992"

T.A. Ragavendrian; S.Thiruvengadam.. 13

- "Computer interfacing for data acquisition and system control".

Ndinechi, Michael C. 25

-" Descomposed model of the doubly fed induction machine (DFIM)".

Abdessemed R.; Drid S. 33

-"Eddy current characterization of switched reluctance motor

through finite element analysis". K.N. Srinivas; R. Arumugan.. 41

- "Simulation of a short-circuit in an HVDC link". S.Hadjeri;

M.K. Fellah; S.A. Zidi; D.K.Tran.. 53

Vol. 75 nº 2

- "Study of the influence of enviromental conditions on the

propagated VHF electromagnetic wave´s recorded by designed

data recording system". A.M. Swidan 1

• "Effect of depolarization of microwave/millimeter wave in

microwave terrestrial ling containing sand, silt and clay particles".

S.K. Srivastava; B.R. Vishwakarma 11

- "Low-frequency noise modelling and measurement in submicrometer

MOSFETs processed in 0,7 µm CMOS technology". Hassan Belahrach;

Mohamed Karim; Jean Farre.. 21

- "Motor fault detection-A novel neural network approach".

P. Chattopadhyay ( Bhaduri); D. Ghosh; D. Dasgupta 35

- "Harmonic measurement and power factor correction in a factory".

Belgin Türkay.. 47

- "A procedure for the integrated determination of uranium and metallic

impurities in the nuclear grade uranium trioxide produced by the nuclear

material authority, Egypt". H.M. Serag; A.M. Abadallah; M.A. Akl;

E.M. Hussein; N.T. El-Hazek. 57

Vol 75 nº 3

-"Effect of ternary addition and cooling rate on the structure

and properties of lead-tin based alloy". Abu-Baker El-Bediwi.. 1

-" Field otpimization of high voltage spacers in GIS" H.M.Abdallah 13

-"Waveform synthesis using fourier series". Emad Hamdoon Said 29

-"Modelling and simulating of power electronic systems using

matlab/simulink" A. Kandaswamy; M.R. Vikraman; T.P. Sandeep.. 37

-"Double flexion influence of the coils during the two layer three

phase winding placement on the reliability of induction machines".

Abdessemed R.; Tomachevitch V.F 55

Vol. 75 nº4

-"Effects of magnetic field and volume sources and sinks of

mass on the flow of a viscous electrically conducting fluid in

a channel". S.S. Das; G.C. Dash; N.K. Kamila. 1

-"Modelling of the nMOSFET I-V characteristics in relation

with defects induced by the stress". A. Bouhdada; R. Marrach. 21

-"Fuzzy modelling and control of a three phase induction motor

driven pump". S. Himavathi; B. Umamaheswari 33

-"Complex excitation microstrip antennas arrays synthesis and

numerical computation". Zahéra Mekkiovi.. 49

Modelling B.2002

Vol. 71 nº1

- "MHD free-convection and mass transfer flow on a porous medium in a

rotating fluid due to radiactive heat transfer". C. Israle-Cookey; P. Mebine;

A. Ogulu.. 1

- "Free convective flow of couple stress fluid between vertical parallel

plates in the presence of internal heat servie". J.C. Umavathi.. 9

- "Development of a solar assisted air heater". F.O. Akinbode;

O.V. Ogwvagwu.. 27

- "Design, construction and testing of a hend pump". F.O. Akinbode;

O.V. Ogwvagwu... 43

- "Propane and methane-air combustion in a constant volume vessel".

Soupayan Mitra; Probir Kumar Bose 55

Vol. 71 nº2

- "On the upper-branch stability of accelerating borundary layer flows

over a compliant borundary". S.S. Motsa; P.Sibanda; J.S.B. Gajjar. 1

- " Radiative heat evaluation from gas flaring by computer simulation:

a case study of study of the Niger delta area of Nigeria" A.S. Abudulkareem;

J.O. Odigure 19

- "Electrical modelling of heat transfer for a Cryoreslstive cable end box".

Petre Raducanu 37

- "Extension of the pressure substitution method to three-dimensional

turbulent flows in complex geometries". L. Belhoucine; A.R. Elazehari;

Q.M. Bensalah. 47

- "Generalized MHD Covette flow with variable visosity"

V.M. Sorundalgekar; R.M. Lahurikar.. 61

Vol. 71 nº 3

- "Constrained hybrid/position control of manipulators". W.A. Mahmoud;

M.Z. Alfaiz; E.B. Agals.. 1

- "Thermal effects on the bearing capacity of earth wall in optimal

design". A.A. Adedeji 17

- "Effect of oxygen supply on dual-fuel engine performance using

natural gas as primary fuel". O.M.I. Nwafer.. 29

- "Efrect of hall current on hydromagnetic free convection flow near

an exponentially accelerated prous plate with mass transfer".

G.C. Dash; Pravat Kumar Rath 45

- "A CAD product for inverse thermal problems" Daniela Cârstea;

Ion Cârstea 61

Vol. 71 nº 4

- "Transient flow of a radiating hydromagnetic past an infinite

vertical plate". C. Israel-Cookey; G. Tay.. 1

- "Effects of overtaking disturbances on the flow of shock waves in

uniform medium". Sanjay Kumar Singh.. 15

- "Non-Newtonian shretching coupled-flow in a channel bounded

by a highly porous layer". Dileep Singh Chauhan; Prem Kumar Jakhar.. 33

- "MHD flow of two-component plasma betwen two coaxial clylinders".

M.A. Alabraba; K.D. Alagoa; V.B. Omubo-Pepple 41

- "Magnetohydrodynamic slip flow of a heat generating fluid wiht hall

currents". A. Ogulu; E. Amos 51

- "Numerical model of thermal transfer as regards dispersed material".

H. Boruayad; E. Aaoloui Omari.. 59

Vol. 71 nº 5

• "Linear spectral analysis of a three-dimensional inhomogeneus turbulent

free jet under realistic atmosferic conditions". M. Hasnaoui; M. Agouzoul. 1

- "On the variational formulation of problems in continuum damage

mechanies". E. A. Ibijola; F. Matthew-Ojelabi 23

- "The utilization of the flash method to determine thermal contact resistance".

H. Bouayad; C. Martin; E. Alaoui Omari 41

- "A study of rebum chemistry in relation to NO reduction in diesel

engine combustion". K.D.H. Bob-Manuel. 53

Vol. 71 nº 6

- "Gearing dynamics optimization by 3-D tooth profile modification".

Jianfeng Li; Sang Zhang.. 1

- "Specific heat mesaurement by isoperibolic calorimeter of ceramic

material with regard of thermal losses by radiation". H. Bouayad;

A. Mouhen; C. Martin; E. Alaoui Omari. 15

- "Study of incomprensible flow in tapered annular seals", M.Sriti;

M. Agouzoul 27

- "Non-Newtonian laminar flow and heat transfer in helically coiled pipes".

A. Ogulu; D.D. S. Bawo.. 41

- "MHD Borundary layer flow along a porous vertical wall in slip flow

regime". N.C. Jain; Rajeev Taneja.. 57

Vol. 71 nº 7

• "Stochastic blood flow through an overlapping arterial Stenosis". M.H.Kamel;

M.A. El-Tawil. 1

• "Free convection polar flow through a porous medium under the action of a

magnetic field". N.C. Jain; Rajeev Taneja.. 13

• "Shear band propagation in a mild steel double-notch specimen under impact

loading". O.Oussuaddi; S. Ahzi; A. Zeghloul; D. Bouami. 23

• "Effects of spring stiffness and spring position on the sability of cantilever thick

beams". Mustafa Sabuncu; Hasan Öztürk.. 33

• "Theoretical study and modeling of a sweeping spherical solar still coupled with

a plan collector". Mahamat Barka; S. Gaye; G. Menguy; Ahmat-Charfadine M 53

Vol. 71 nº 8

-" A two-dimensional euler solver using finite volume method for internal flows"

Özlem Mutaf Yardimci; M. Halûk Aksel.. 1

• "Unsteady MHD flow with radiation through porous medium in slip flow regime".

Rajeev Taneja; N.C. Jain 23

• "Propagation of shock waves in a dusty gas with density obeying the power law".

J.P. Vishwakarma; G. Haidar. 37

• "Basic concepts of thermal study through finite element analysis of the switched

reluctance motor". K.K. Srinivas; R. Arumugan.. 49

Modelling C-2002

Vol. 63 nº1

• "Concentration of lanthanide and actinides present in

Sibaiya phosphate ores, ( Aswan, Egypt) ". R.M. Awadallah;

M.E. Soltan; M.A. El Taher; K.M. Taie.. 1

• "Atenuation measurements on shallow seismic refraction data

from the Niger delta marine sediments". M. T. Olowokere;

A.D. Oyega.. 21

-"Geoelectric mapping for basement structures and its

hidrogeologic implications at lafe area, Akure, southwestern

Nigeria". A.O. Adelusi 39

-"Early diagnosis of myocardial damage in Chagas´disease:

a decision tree application". Liana J. Mármol-Herrera;

Kevin Warwick.. 55

Vol. 63 nº2

-"Sedimentological studies of quaternary sediments in

Wadi El-Natrum Depression, Egypt". A.M.A. Badr;

M.A. Shata; E.M Deghedy 1

-" Impact of aromatic hidrocarbons pollutants of fisheries

of etrumeus teres in the Gulf of Suez". Aly Y.El Sayed;

Tarek O. Said; Mohamed I. El Samra.. 17

-" Kinetics of esterification of various saturated fatty acids

with isobutanol". O.S. El-Kinawy; O.A. Megahed; F. A.Zaher 27

-"Modification of RTV Silicone". N.A. Ramadan;

A.M.M. Saleh; M.M.K. Fouad. 39

-"Phytoelectric modelling and simulation of seismic prediction".

H.D. Mahar; A. M. Agrawal; G.P. Chhalotra.. 53

Vol. 63 nº3

• "Effect of some physiological and nutritional factors on the production of

pigments by monascus ruber ATCC 8111"L.A.R. Sallam; A. A. Hamdy;

E.F. Ahmed.. 1

-"Separation and determination of Cu⁰, Cu¹⁺ and Cu²⁺ in copper catalysts".

Amin M. Abadallah; Nadia E. Abd El-Ghany; Tarek M. Wahdan; Saleh S.El-Juaid 17

• "Kinetics and thermodynamics aspects of aluminium extraction from aluminium

slag by sulfuric acid pressure leaching". A.M. Amer 25

- "Enviromental impacts on water and sediments of the river Nile in greater Cairo

(near Helwan city)". Ahmed A. Melegy; Mohamed A-Ahmed; Gamal A.E. Mostafa 41

- "Modeling of brewery effluent ph value". J. O. Odigure; O.D. Adeniyi 55

Vol. 63 nº 4

• "Urea-formaldehyde adhesive formulation by simplex lattice design for solid wood

joints".M. O. Edoga; R.O. Ebewele; F. Peters; B.P. Onaji; R.N. Anosike. 1

• "Microcomputer-based system for pulmonary edema monitoring and diseases

management". Musbah Jumah Aqel 19

• "Computer aided design of CSTR in alcoholic fermetation of sugar cane

malasses". H.A. Ogoni; M.F.N. Abowei; R. Gumus.29

• "Enzimatic browning inhibition and keeping quality of fresh and dried apple rings

by natural leafy vegetable extract". H. A. Essa; M.F. Salama39

• "Optimum variation of breathing rate under exercise: a study based on change in

inspiratory flow and minimum work rate criterion". A. Kandaswamy;

C. Sathish Kumar; Rm-Pl. Ramanathan..59

Supplement 2C-2002 : PARIS (France) - June 13th-14th 2002

- "Assistive robotics for severely disabled people: the commanus project".
B. Abdulrazak; M. Mokhtari; B. Grandjean (France)............................................................. 1
- "Communication devices for persons with motor disabilities: man-machine interaction modelling".
Pierre Pino; Guy Bourhis; Antonio Leal-Olmedo (France) .................................................15
- "H.M.P.H.: Habitat mobile por personnes handicapées. Software for the design of an adapted living area".
Jérôme Leloup; Pierre Gaucher (France) ...............................................................................25
- "A multi-agent control structure for intelligent wheelchair".
Yann Morere; Alain Pruski; Mourad Ennaji (France) ............................................................35
- "Remote control of a biometrics robot assistance system for disabled persons".
Yves Rybarczyk, Omar Ait Aider; Philippe Hoppenot; Etienne Colle (France) ..................47
- "Robotic behaviour adaptation for a locomotion aid".
R. Thieffry; E. Monacelli; P. Henaff; S. Delaplace (France)................................................. 57
- "Biomechanical modelling of seat-to-stand-process on electrical wheelchair".
Philippe Gorce; M. L. Boughiden (France) .............................................................................71
- "Optimization of clinical investigations with the cochlear implant NRT system through the use of several-frequency stimulation".
B. Charasse; T. Pawelczyk; C. Berger-Vachon)........................................................................ 83
- "How can language be written for a palliative vocalized communication ?".
Maryvonne Abraham (France).................................................................................................... 95
- "Usability of vocal interaction to access interactive system by the elderly".
Régis Privat; Nadine Vigouroux; Philippe Truillet (France).................................................. 107
- "An evaluation framework for writing assistance systems: application to VITIPI".
Philippe Boissière; Daniel Dours (France)...............................................................................119
- "Color-blinking code and low cost peripheral monitor for people who are deaf or low vision".
Tatiana Evreinova; Grigori Evreinov; Roope Raisamo (Finland)............................................129
- "Navigational aid for blind pedestrians: towards a localized verbal guidance system".
Florence Gaunet; Xavier Briffault (France) .............................................................................139
- "Macular degeneration: head-mounted visual aid system".
J. C. Kastelich ; M. Pommeray; F. Druart; V. Pardessus; C. Gaudefroy; V. Dedès;
J. Charlier (France) ....................................................................................................................151

Modelling D-2002

Vol. 23 nº 1

- "Farm size and relative efficiency in Nigeria profit function analysis
of ricer farmers". D.O. Ohajianya; c.E. Onyenweaku…………………….. 1

- "Input-output relationship of industrial production fundamentals on
national market". Ranjan Chaudhuri……………………………………… 17

- "Probability models for number of rural out-migrants at micro-level".
Himanshu Pandey; Vivek Shukla………………………………………… . 33

- "Research and development units in business and evaluation of
R. and D projets and measuring their performance". O. Turkbey;
B. Esmergul……………………………………………………………… 43

Vol. 23 nº 2

- "Agent-based analysis and design for industrial process control"
A. El-Fazziki; M. Sadgal……………………………………………………. 1

- "Sample attributive prototypes of small and medium-sized manufacturing
firms". B.I. Niel; R.O. Dichiara……………………………………………… 21

- "A determinstic inventory model for deteriorating items with time
dependent demand and shortages for finite time horizon". Nita H. Shah…… 47

Vol. 23 n°3

-"Telecommunication service personalization ". Zahi Jarir ; Mohammed Erradi
(Morocco)…………………………………………………………………………...…..1
-" Optimizing return on credit union loan portfolios : an application of multiple criteria decision making models". Dinesh K. Sharma (USA); Debasis Ghosh (India);
Dorothy M. Mattison (USA)............................................................................................15
-"Operation planning in the dairy sector using mathematical programming". Doldan-Tié
F.R.; Fernandez-Castro, A.M., Fernandez-Castro, A.S. (Spain)......................................31
-"Computer integrated manufacturing and dependable programming".
Antoni Izworski; Joseph B. Lewoc (Poland)...................................................................43
-"The systematization of a supply chain model applied to the tourism sector through use of simulation and knowledge systems". Adolfo Alberto Vanti; Carlos Hideo Arima; Oscar R. Kronmeyer Filho; Pires Machado (Brasil)..........................................................................51

Vol. 23 n°4

-"Kinetics of colour changes during the processing of ready to eat cereals". H.A.
Moharram (Egypt)...................................................................................................................1
-"Probabilistic multi-item inventory model with varying holding cost under two linear constrainst: a geometric programming approach". Hala A. Fergani; M.E. El-Saadani
(Egypt)………………………………………………………………………………………17
-" Theoretical and procedural framework for measuring the extend of intra-industry specialization and trade within the economic community of West-African states
(ECOWAS).............................................................................................................................29
-"Mathematical model of population distribution within the Christian community of Nigeria". S.C. Inyama (Nigeria)....................................................................................................................................47
-"Multivariable modelling of AGVs and economical design of material flow paths"
Türkbey Orhan; Kalender Tesim (Turkey)...............................................................................55