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Ahmad Mohamad Ghaddar

Associate professor
Computer Science - Statistics department - Section I - Hadath
Speciality: Computer Science
Specific Speciality: Informatique

Positions
1992 - 2015 : Professor

Lebanese University- Faculty of Sciences
Hadath

Teaching 5 Taught Courses
(2014-2015) Phys 456 - Aerodynamics

M1 Hydrodynamics

(2014-2015) Phys 456 - Aerodynamics

M1 Hydrodynamics

(2014-2015) Math 272 - Numerical Analysis

BS Physics

(2014-2015) Math 272 - Numerical Analysis

BS Physics

(2014-2015) Info 371 - Programming III

BS Physics

Education
1989 - 1992: Ph.D

l'Université des Sciences et techniques de Lille
mechanic, Informatic, Aerodynamic

1988 - 1989: DEA

University of Lille
mechanic

1987 - 1988: maîtrise

Ecole Nationale Supérieure d’Ingénieur de Constructions Aéronautiques de Toulouse
Aeronautical Engineering

1985 - 1987: Bachelor

University of Lille
Dynamic Fluid

Publications 2 publications
Bassam Mourada, Hassan Abbasb, Ayman Mouradb, Ahmad Ghaddarb, Issam Kaddoura An algorithm for constructing doubly stochastic matrices for the inverse eigenvalue problem Linear Algebra and its applications 2013

In this note, we present an algorithm that yields a new method for constructing doubly stochastic and symmetric doubly stochastic matrices for the inverse eigenvalue problem. In addition, we introduce new open problems in this area that lay the ground for future work.

Z. Saad, K. Slim, A. Ghaddar, M. Nasreddine and Z. Kattan Chemical composition of rain water in Lebanon Journal Européen d’Hydrologie 2010

Samples of rainfall water were collected from fifteen stations in Lebanon during the period between October 1999 and April 2000 (the rainy season in Lebanon). Nine of these stations are distributed along the urban coastal cities, from the north to the south. The remaining 6 stations, which have different altitudes ranging from 400m to 1200m high, are distributed in the mountainous rural areas. The concentrations of major cations (H+, Na+, Ca2+, Mg2+ and NH4+) and major anions ( Cl-, NO3-, HCO3- and SO42-) are determined for the first time in Lebanon. It has been found that the rain water is not acidic, due to the presence of carbonate dust particles in the atmosphere, which arise from the natural carbonate rocks, especially predominance in the mountains and internal regions of Lebanon. The high predominance of Na+ and Cl- in the coastal investigated stations, is attributed to marine aerosol spray. The concentrations of SO42- and NO3- are close to the concentrations expected in typical urban areas. The correlation between the concentration of chemical species confirms the influence of natural and anthropogenic sources.

Languages
Arabic

Native or bilingual proficiency

English

Full professional proficiency

French

Professional working proficiency