CURRICULUM VITAE

Yehia Hendawey Hosam el-deen.(Professor)

Email: yhendawy@yahoo.cpm

Phone: Mob.: (+20)10- 1900529

Home: (+20)2-4029044

 

1-PERSONAL DATA:

Name:   Yehia Hendawey Hossam el-deen.

Nationality:   Egyptian

Address: 10 Taamir St. from Zohir Sabry, District # 1, Nasr City, Cairo, Egypt, #11371.

Phone:   Mob.: (+20)10- 1900529, Home: (+20)2-4029044

2- ACADEMIC RANK:

Professor, Supreme council of the Egyptian Universities; 2000.

 

3-EDU CATION:

1986: Ph.D. in Mechanical Engineering (Minor in Electrical Engineering) - University of Wisconsin (UW) - Madison, Madison, Wisconsin, U.S.A. - The thesis is:

"COMPUTER CONTROL OF VEHICLE SKIDDING ON SLIPPERY ROADS"

1981: Ms. in Mechanical Engineering - Military Technical College (MTC), Cairo, Egypt.

1970: Bs. in Mech. Engineering, Automotive specialization , MTC

4-EMPLOYMENT:

Sep. 2006 – Present :

      Professor of Automotive (Vehicle Design& Dynamics) - Mechatronics Engineering, HTI, 10^th of Ramadan, Egypt _ Consultant in the related educational and industrial fields and Auto-tronics (electronics applications in automobiles)

2004-Aug. 2006:

      Professor, Vice Dean of Faculty of Engineering; Chairman of Mechatronics Dept.; University of Philadelphia – Amman; Jordan.

2003-2004:

      Professor, 1^st Chairman of Mechatronics & Automotive Department, Higher Technological Institute (HTI), Tenth of Ramadan City, Egypt.

2002 – 2003:

      Professor, 1^st Chairman of Mechatronics Department; faculty of Engineering; University of Philadelphia – Amman; Jordan.

1996 -2002:

      Associate Professor - Professor (from 2000), In charge of the Mechatronics Section; and supervising the Automotive engineering section (6^th of October City), Mech. Eng. Dept; Higher Technological Institute (HTI), Tenth of Ramadan City, Egypt.

1989- 1996:

      Assistant Professor - Associate Professor (from 1992), Acting Chairman of Automotive Engineering Dept.; MTC, Cairo, Egypt.

1986 - 1989:

      Assistant Professor; Auto. Engineering Dept.; MTC, Cairo, Egypt.

1981- 1986:

      Graduate Student- Research Assistant.; University of Wisconsin (UW) - Madison, Madison, Wisconsin, USA

1975- 1981:

      Assistant Lecturer in the Mech. & Auto. Engineering Dept., MTC.

1970 - 1975:

      Repair & Maintenance Engineer In Field Workshops; The Egyptian Army.

5- ACADEMIC & PROFESSIONAL EXPERIENCE:

The main areas of academic professional experience are: Analysis and design of mechanical and mechatronics systems and also study and research of their applications in industry. Specifically in:

• The Interdisciplinary Field Of Mechatronics: [Design of Smart Machines - Design of mechatronics systems including the necessary multidisciplinary aspects of design (mechanical, electronics, control, and computer), Automatic control, Hydraulics and Pneumatics control Engineering, Sensors & Actuators, and PLC Control ]

• Engineering Mechanics & Applied Mechanics, Mainly in Automotive: [Statics, Dynamics, Strength Of Materials, Vehicle Design (using CAD)- Fatigue and Cyclic loading, Vehicle dynamics (using Computer simulation – MATLAB, SIMULINK- ADAMS ) - Finite element analysis of different stresses - and Automotive electronics (Auto-tronics)].

• The above areas are applied in research projects; supervising of Ph.D. & Ms. Students ; and teaching graduate and undergraduate courses.

 
 

 

A- Applied Research Projects (Examples):

      Being a member or ( a member& and a leader of a team) for the following applied research projects:-

1. Project No. (4/84/6), 1982 “Norms for Performance, Operation, and Maintenance for transporting units (moving on roads) as basis for optimum design of maintenance workshops”; Ain –Shams University, Funded by the Egyptian Scientific Research Academy (The Council of Transport Research), Completed 1991.

 

2. Project No. (880223),” Design and Implementation of an Electronic Device for fuel saving during driving on urban traffic”.,-Field testing gives fuel saving more than 4.9% on driving in Cairo city, Egypt, Military Technical College, (MTC), Funded by the Egyptian Ministry Of Defense (EMOD), Completed 1991.

3. Project No. (920223),” Design, production, and erection of a soil bin for dynamic testing of off-road tires. (With computer control and data acquisition system)”, MTC, Funded by the EMOD, Completed 1994.

4. Project No. (950201), "Developing a computer software package for evaluation of vehicle dynamics performance", MTC, Funded by the EMOD, Completed 1996.

5. Project No. (without), “Proposing and supervising the construction of a National lab for tire and wheel testing in Alexandria , Egypt (Computer controlled with PLC and with data acquisition system )", Arab International Optoronic (AIO) company , Funded by the General Authority for the Quality Control Of Export & Import, The Egyptian Ministry of Industry& Commerce, Completed 1998.

6. Project No. (970244), "Evaluation of the dynamic performance of articulated vehicles using computer simulation technique through different standardized maneuvers", MTC, Funded by the EMOD, Completed 1999.

   B- Supervising Ph.D. & Ms. Thesis (Examples):

      The following are examples of the thesis supervised :

1. Vehicle Dynamics – Analysis and Modeling of Vehicle Rollover. ( Ph.D.), MTC, completed 2005

2. Vehicle Dynamics – Analysis and Modeling of Vehicle Steering. ( Ph.D.), (continuing)

3. Ride Comfort & Vehicle Handling Performance Evaluation, (Ms), MTC, Completed 2005,

4. Dynamics – control and Navigation - of Autonomous Vehicle, Al-Azhar University, (Ms), (continuing).

5. Electronic Control of Vehicle Steering, (Ms), MTC, Completed 2003.

6. Using Computer Control for Improving vehicle transmission, (Ms), MTC, Completed 2001.

7. Analysis and Improving automobile brake lining material, (Ms),MTC, Completed 1999.

8. Using performance Measures for evaluation of heavy vehicle dynamical performance [Computer Simulation based on University of Michigan Transportation Research Institute (UMTRI)]., (Ms), MTC, Completed 1999.

9. Improving Automobile Braking Performance Using Computer Control, (Ms), MTC, Completed 1997.

10. Dynamic testing of automobile tires. (Ms),MTC, Completed 1996.

11. Tire – Terrain Relationship (Ms), MTC, Completed 1996

12. Technical Evaluation of Off-Road Vehicles. (Ms), Al-Azhar University, Completed 1994.

13. Using CAD for Optimization of Automobile Brake Systems (Ms), MTC, Completed 1993.

14. CAD of Motor Vehicle Automatic Transmission (Ms), MTC, Completed 1992.

15. Study of power losses in Automobile transmission. (Ms), MTC, Completed 1992.

16. Influence of Relative Stiffness of Tire and Soil in Vehicle Mobility. (Ms), MTC, Completed 1992.

17. Computer Aided Design of Automobile Suspension MTC, (Ms), Completed 1990.

C-Supervising Bs Senior Projects: 

Most of the Bs Senior projects supervised are in the areas of:

1. Interdisciplinary Field Of Mechatronics: Examples: Robot design, electronic control, and implementation, Elevators, and Smart Vehicles are also considered especially with students with mechatronics background (In Philadelphia University and HTI, where some of the projects are related to the International contest of ROBOCON ).

2. Applied Mechanics& Mechanical Engineering. Examples: Automobile design with emphasis on the fatigue loading considering the different operating conditions of roads, tonnage, and speeds - Also automobile electronics (Auto-tronics) are considered especially with students with automotive background (in MTC, & Philadelphia University).

 

.C-Teaching the following Graduate courses (in MTC and the Egyptian Universities):

1. Computer Aided Design (CAD)

2. Vehicle Dynamics (Continuum Mechanics - Vectors & Tensors approach are used for vehicle modeling equations),

3. Theory & Design of Automobile,
4. Selected topics in Advanced Automobile Engineering (Mechatronics Applications – Special materials for high strength & low weight with objective of high durability & minimum air pollution through maximum fuel economy (minimum fuel consumption – Continuum Mechanics  )).
5. Mechatronics & Measurements.
6. Hydraulics Control ( Classical, Electro-hydraulic, and PLC Control)& Pneumatics Engineering.
7. PLC Control.
8. Sensors & Actuators.

D-Teaching the following Undergraduate courses (in HTI, MTC, the Egyptian Universities and Philadelphia University, Amman, Jordan):

1. Computer Applications in Mechanical Engineering.
2. Strength of Material.
3. Mechanical System Analysis,
4. Modeling and Simulation of Physical Systems
5. Theory of Automobiles,
6. Design of Automobiles,
7. Automotive Technology 
8. Mechatronics.
9. Designing of Smart Machines
10. Hydraulics& Pneumatics Engineering.
11. PLC Control.
12. Sensors & Actuators
13. Automatic Control.
14. Modern Automotive Control Systems (Mechatronics applications)

E- Training courses for Engineers & Technicians:

      Teaching the following training courses for Engineers & Technicians for the industry in Private & National sectors in Egypt:-

1. -Hydraulics (Basic & Advanced including electrical& PLC control)
2. -Pneumatics (Basic & Advanced including electrical& PLC control)
3. -PLC control. (Basic & Advanced)
4. -Sensors & Actuators.
5. -Instrumentations.
6. –Automotive Technology.
7. –Automotive Electronics.(Auto-Tronics).

NOTE: It should be noted that the above training courses could be very efficiently given using the possible available facilities in the HTI (efficient from point of view of Economy & Technical quality). In this regard, I have solid relations with the Technology Competence Centre, TCC (Established by the Egyptian & German governments). I can be an active member or a leader of a team to prepare, share in and/or supervising the execution of a standardized or tailored programs in: Hydraulics, Pneumatics, CNC, Modular Production Systems, Automotive Technology, Automotive Electronics, - Electric, Electronics, Closed Loop Control, Process Control, and Programmable Logic Control (PLC).

 

6: CURRICULUM DESIGN :

                              The activity in curriculum design is as follows:-

1. Being the main member of curriculum design committee for the interdisciplinary mechatronics program at Philadelphia University, Amman, Jordan. Approved by the Jordanian High Education ministry and the department was established as independent entity starting from the academic year 2002/2003 and I was the 1^st chairman..

2. Curriculum Design for a new Section, " Automotive Engineering Section" in HTI; Sixth of October City. Approved by the Egyptian High Education ministry and started to accept students from the academic year 1999/2000.

3. Curriculum Design of a course 1^st time to be taught in MTC " Modern Automotive Control Systems" -Mechatronics applications in Automotive systems (Auto-tronics); Approved by the Higher council of the Egyptian Universities and taught starting from the academic year 1997/1998.

4. A member of the local Experts Committee of Curriculum Design for Industrial Education Colleges (IEC); Courses of Mechanical Engineering (Automotive Specialization), The courses contents were approved in July, 1994 through the Technical Education Development Project (TEDP), Ain-Shams University, Ministry of Higher Education.

7- INITIATIVE PROPOSAL FOR Development & Upgrading the aleady applied Mechatronics Program at HTI.

      Based on the experience mentioned before (Items 3-6 of this curriculum vitae), a preliminary proposal for upgrading the already applied interdisciplinary specialization (Mechatronics) has been proposed and it is being discussed in a committee from Mechanical, Electrical, and Computer departments. This is in order to be approved and applied Considering the technological advance in this field and also the needs of the local and middle eastern countries. 

 

8- LAB PROPOSALS& Constructions:

                        During my official employments, I was an active member and/ or a leader for the following activities:- 

1. Planning and constructing new academic labs in Philadelphia University, Jordan, " Mechatronics labs including: digital lab and microprocessor lab- Hydraulics& Pneumatic lab – PLC lab – CNC lab & Control lab ", 2003 and updated June 2006.

2. Planning and constructing new academic labs in HTI, " Mechatronics labs including: basic electronics lab – digital lab and microprocessor lab- Hydraulics& Pneumatic lab – PLC lab – CNC lab & Control lab ", 1998/1999.

3. Planning and constructing new academic labs in Sixth of October branch, HTI, "Automotive Technology Lab.”,& “ Automotive Maintenance Lab”, 1998/1999.

4. Planning and constructing new academic labs in MTC: " Modern Automotive electronic Control Systems" & "Dynamic tire testing"., 1995/1996

9: ADDITIONAL ACTIVITIES:

1. A member of different technical committees for evaluating the modifications of motor vehicles in the Egyptian Army.

2. A technical consultant for the National Service Projects Organization (N.S.P.O), Arab International Optoronic (AIO) company. An example of activities: “Proposing and supervising the construction of a National lab for tire and wheel testing in Alexandria , Egypt (Computer controlled with data acquisition) [1997-1998].

3. A member of the Society of Automotive Engineers (SAE International)

4. A member of the Egyptian Society of Operation and Maintenance.

5. A member of the organizing and the Scientific committee of the following conferences: The International Conference on Applied Mechanics & Mechanical Engineering , Military Technical College , Cairo, Egypt (1986- 2000) 

6. I have good cooperation links with many Arab Universities in my field of specialization [Mechanical Engineering (Automotive & Mechatronics)]. Examples: Ain-Shams& Cairo universities in Egypt – Philadelphia& Jordan Universities in Jordan – Tishreen University in Lazikia, Syria.

10: PUBLICATIONS :-

      The complete list is as follows.

A-JOURNAL PAPERS:

1] Tarek Tutunjy, Mazen Jumah, Yehia H. Hossam EL-DEEN & Saber Abed Rabbo, “ Mechatronics Curriculum Development at Philadelphia University in Jordan” ; Submitted to Mechatronics Journal, Elsevier, Accepted March 2006.

2]-Yehia H. Hosam EL-DEEN; " Tuning of Heavy Vehicle Parameters For Safe Maneuvers"; Engng. Res Jour, Helwan University , Faculty of Engineering ; Mataria , Egypt., June 1999

3]- Yehia H. Hosam EL-DEEN; " Theoretical & Experimental Evaluation of Losses Due to Axle Differential locking of Wheeled Vehicles."; Scientific Bulletin; Vol.33, No. 1, march 31, 1998, Part II : Electrical and Mechanical Engineering.; Faculty of Engineering; Ain Shams University.

4]- Sayed M. Shaaban, Yehia H. Hosam EL-DEEN, and Emad. S. Anbar; " Statistical Norms for Off-Road Wheeled Vehicles Parameters"; (1995); Heavy Vehicle Systems; Special Series of the Int.l J. of Vehicle Design]; Vol. 2; No. 2.; pp. 124- 142.

5]- Yehia H. Hosam EL-DEEN, Sayed M. Shaaban, and Emad. S. Anbar; “ A Computer Aided System for Evaluation of Off-Road Wheeled Vehicle Mobility”; SAE Paper No. 952120; published in SAE 1995 TRANSACTIONS , JOURNAL OF COMMERCIAL VEHICLES .Section 2- Volume 104, pp252- 260; It is also presented on the 1995 SAE International Off-High Way & Power plant Congress & Exposition; September 11-13; MECCA; Milwaukee; Wisconsin; USA; 1995.

6]-Y.H.Hosamel-deen, "Recent Applications of Microprocessor in the Field of Motor Vehicles."; Tech. & Armament Magazine, Scientific Research Section; January, 1991.

7]-M. El-Gindy and Y.H. Hosamel-deen; (1989) "Sensitivity Parametric Analysis of UMTRI Static Roll Model"; Int. J. of Vehicle Design. vol. 10, no 2, pp. 187-209

9]- T.A.Nosier, Y.H.Hosamel-deen, and M.A.Morsy; "Traction redistribution on Wheels in Case of locked differential."; Scientific Bulletin; Vol.20,1987; Faculty of Engineering; Ain Shams University.

10]-Y.H.Hosamel-deen and A.A.Seireg; "Mechatronics for Cars: Integrating Machines and Electronics to Prevent Skidding on Icy Roads."; Computer In Mechanical Engineering (CIME), Vol.5 No.4, January 1987.

B-CONFERENCE PAPERS

1]- Marwan A.S.Al-Maqtri, Shawky A. Hegazy & Yehia H. Hossam EL-DEEN, “Effect of Shock Absorber Characteristics Approximation in Evaluating the Ride Comfort and Vehicle Handling Performance.” ; Presented and Published on the Eleventh International Conference on Applied Mechanics & Mechanical Engineering , Military Technical College , Cairo, Egypt , May 2006.

2]- Yehia H. Hossam EL-DEEN , Tarek Tutunjy & Saber Abed Rabbo “ Mechatronics Department Experience – Case Study on University on Philadelphia- Jordan” The Private Sector Higher Education in the Arab World Conference, held by Arab Engineers Syndicate Association, Cairo, Egypt, August, 2005.

3]- Yehia H. Hossam EL-DEEN; “Reducing Exhaust Emissions Through Minimizing Vehicle Fuel Consumption ” ; Presented and Published on The First Ain Shams University International Conference on Environmental Engineering, Cairo, Egypt, April, 9-11, 2005.

4]- Yehia H. Hosam EL-DEEN; “Mechatronics In Automobile Engineering- A Proposal for Development of an Automobile Curriculum.”; The 10^th International Conference On Aerospace Sciences & Aviation Technology; MTC , Cairo, Egypt , May 2003.

5]- Yehia H. Hossam EL-DEEN;  M. Hadad & A. Helmy; “ Using Mechatronics For Automation Of An Automotive Manual Gearbox”; Presented and Published on the Ninth International conference on Applied Mechatronics & Mechanical Engineering, Military Technical College,Cairo, Egypt, May 2002.

6]- M.Mousa, Yehia H. Hossamel-deen, & M. Abdel-Azim; " Optimization of Brake Lining Material and Processing “;Presented and Published on the 31^st  International SAMPE Technical Conference (26-30) October, 1999, Chicago, USA.

7]-M.Mousa, Yehia H. Hossamel-deen, M. El-Hadad, & M. Abdel-Azim; "Improving Automotive Brake Lining"; Presented and Published on the 8^th International Conference on Aerospace Sciences & Aviation Technology; MTC , Cairo, Egypt , May 4-6, 1999.

8]- Yehia H. Hosam EL-DEEN, Mohamed A. El-Haddad, M. Mousa, & El-hossieny Sharaf; " Evaluation of the Dynamic Performance of Articulated Vehicles (Case Study)" Presented and Published on the 8^th International Conference on Aerospace Sciences & Aviation Technology; MTC , Cairo, Egypt , May 4-6, 1999.

9]-_ M.A.El-Hddad, M.M. Moussa, Yehia H. Hosam EL-DEEN, & T.A. abd-Allah; "Design of a Gaseous Fuel System for Multi-fuel ICE"; Presented and Published on the Eigth International Conference on Applied Mechanics & Mechanical Engineering, Military Technical College, Cairo, Egypt, May 12 - 14, 1998.

10]- Yehia H. Hosam EL-DEEN, Mohamed A. El-Haddad & Eng. Shawky A. Hegazy.; "A Test Rig for Dynamic Evaluation of Off-Road Tires Characteristics."; 7^th International Conference On Aerospace Sciences & Aviation Technology; Military Technical College , Cairo, Egypt , May 13-15, 1997.

11]- Yehia H. Hosam EL-DEEN, Sayed M. Shaaban, and Emad. S. Anbar; “ A Computer Aided System for Evaluation of Off-Road Wheeled Vehicle Mobility”; SAE Paper No. 952120; Presented on the 1995 SAE International Off-High Way & Power plant Congress & Exposition; September 11-13; MECCA; Milwaukee; Wisconsin; USA; 1995. It is also published in SAE 1995 TRANSACTIONS , JOURNAL OF COMMERCIAL VEHICLES .Section 2- Volume 104, pp252- 260.

12]- Sayed M. Shaaban, Yehia H. Hosam EL-DEEN, and M.F. Abdel-Gowad; "Experimental Investigation of Egyptian Sand Parameters Affecting Vehicle Mobility";Presented and Published on the Second Conference on Civil Engineering, Military Technical College, Cairo, Egypt, November 8-10, 1994.

13]- Yehia. H. Hossamel-deen, S. M. Metwalli, and M. T. Fares; "Optimum Design of Planetary Gear Sets"; Presented and Published on the Sixth Conference on Applied Mechanical Engineering (Second International), Military Technical College, Cairo, Egypt, May 3 - 5, 1994.

14]- A.F. Elsanabary, Yehia. H. Hossamel-deen, A.K. Elbasiony; " Theoretical and experimental Investigations of the Performance of a Cam Actuated Pivoted Shoe Brake"; Presented and published on the Fourth International Conference on Production Engineering and Design for Development , December 27 - 29, 1993, Ain Shams University, Cairo, Egypt.

14)-A.K. Elbasiony, Yehia. H. Hossamel-deen, A.F. Elsanabary; "Computer Aided Optimum Design of A Cam Actuated Shoe Brake" ; Presented and published on the Fifth ASAT Conference, 4 - 6 may 1993, Military Technical college, Cairo, Egypt.

15]-M.A.Elhadad, Yehia. H. Hossamel-deen, A. A. Mohammmed, and B. M. Rabie; "Testing of A Fuel Cutoff System of Motor Vehicle in Urban Traffic", Presented and Published on the Fifth Conference on Applied Mechanical Engineering (First International), Military Technical College, Cairo, Egypt, May 5 - 7, 1992.

16]- Yehia. H. Hossamel-deen, S.M.Metwally, & A.S.Abdel-hameed; "Vehicle Suspension System with An Optimum Nonlinear Shock Absorber."; Paper Des.1.2, Presented and published in the proceeding of the Fifth Cairo University MDP Conference, Cairo, 28 -30 December, 1991 pp. 143-152.

17]- Yehia. H. Hossamel-deen, S.M.Metwally, & A.S.Abdel-hameed; "A CAD Program for Optimum Nonlinear Characteristics of a Vehicle Shock Absorber."; Presented and published in the proceeding of the 1991 ASME International Computer in Mechanical Engineering Conference & Exposition, Sant Clara, USA, Aug.(18 -22), 1991

19]- Yehia. H. Hossamel-deen, "Computer Prediction and Experimental Evaluation of Vehicle Dynamical Performance"; Presented and published in the proceeding of the fourth Conference on Applied Mechanical Engineering , Military Technical College, Cairo, Egypt, May 5-8,1990.

20]- Yehia. H. Hossamel-deen, and A.A.Seireg; "An Integrated Anti Skid System for road vehicles", Presented and published in the proceeding of the International Conference on Advanced Mechatronics, Japan Society of Mechanical Engineers, Tokyo, Japan, May 21-24, 1989, Paper No. 761..

21]- M.A.Elhadad, Yehia. H. Hossamel-deen, "Potential of Fuel Saving by Fuel Cutoff During Coasting in Urban Traffic Driving", Presented and published in the proceeding of the third Conference on Applied Mechanical Engineering, Paper MA-1, Military Technical College, Cairo, Egypt, April 12 - 14, 1988.

 

22]- Yehia. H. Hossamel-deen, M.A.Elhdad, "Using Computer Simulation for Evaluation of Automobile Fuel Consumption in Urban Traffic"; Presented and published in the proceeding of the thirteen International Congress For Statistics, Computer Science, Social, and Demographic Research, Cairo, Egypt, March 26 - 31, 1988.

23]- A.A. Seireg and Yehia. H. Hossamel-deen, "Integrating Mechanics and Electronics to Prevent Skidding on Icy Roads."; SAE Paper No. 880326, Presented and published in the proceeding of the !988 SAE International Congress and Exposition, Detroit, Michigan, February 29 - March 4, 1988.

24]- Yehia. H. Hossamel-deen, T.A.Nosier and M.A.Morsy; "Traction redistribution on Wheels of Locked differential Axles."; DE-Vol. 11; Presented and published in the Winter Annual Meeting of the American Society of Mechanical Engineers (ASME), December 13 - 18, 1987.

25]- Yehia. H. Hossamel-deen, and A.A.Seireg; "Rule - Based Computer Control Of Vehicle Skidding on Slippery Roads."; Presented and published in the proceeding of the National Symposium on Defense Technology, Cairo, Egypt, Nov. 10 - 11, 1987, Part 2, pp 81-92.

C-INVITED LECTURES

1]- Yehia H. Hossam EL-DEEN;  “CAR-TRONICS & INTILLEGENT CONTROL OF AUTOMOBILES”; Presented at the Mechatronics Symposium, Tishreen University, Lazikia, Syria, March, 2006.

2]- Yehia H. Hossam EL-DEEN; “Multiplexing in Auto-tronics ” , Auto-tronics day, 14-10-2004, Jordanian Engineers Syndicate, Amman, Jordan.

3]- Yehia H. Hossam EL-DEEN; “Improving Vehicle Dynamics during Braking.” The Egyptian Society for the Operation& Maintenance, Ain Shams University, 1999.

4]- Yehia H. Hossam EL-DEEN;  “ Standard Tests for Automobile Tires”; The Egyptian Society for the Operation& Maintenance, Ain Shams University, March, 1998.

5]- Yehia H. Hossam EL-DEEN; “Safe Driving”; The Annual Scientific Conference of the Faculty of Medicine, Munofia University; 1998