Ammar M. Sarhan, Ph.D. Statistics
Curriculum Vitae
Department
of Mathematics and Statistics, Dalhousie University, CANADA.
Work
(902) 494-1981 fax (902) 494 - 5130 Cell (902) 266-6423
Ammar.Sarhan@
dal.ca
Education
|
Institute
of Mathematics, Gdansk University, Poland |
1996 |
Doctor of
Philosophy (Mathematical Statistics) |
|
Thesis Title: |
|
Bayesian
Estimation in Reliability Theory |
|
Faculty
of Science, Mansoura University, Egypt |
1989 |
Master of
Applied Mathematics |
|
Thesis Title: |
|
On
the Harmonic Formulation of Super Yang-Mills Theory in 4 and 10 Dimensions |
|
Faculty
of Science, Mansoura University, Egypt |
1985 |
Bachelor of
Mathematics |
|
Grade |
|
“Excellent
with honors”, First in class |
Research Interests
I am generally interested in
the development of statistical methods motivated by applications to real
scientific problems. I have numerous areas of research, including: computational statistics, statistical inference using Bayesian and
non-Bayesian methods in the presence of different kinds of data, competing
risks models, reliability and survival analysis and univariate and multivariate
(discrete and continuous) distributions. Currently, I am looking on applying
competing risks model and masked data in different fields such as life science
and industrial engineering as well as the application of accelerated life
testing with competing risks models in life sciences.
Employment
History
|
August 2012 –
Present |
Instructor -
Department of Mathematics & Statistics, Dalhousie University, Canada |
|
September
2014 – Present |
Sessional
instructor - Department of Mathematics, Mount Saint Vincent University,
Canada |
|
August 2011
–May 2012 |
Assistant
professor - Department of Mathematics,
Statistics and Computer Science, St. Francis Xavier University, Canada |
|
August 2010 –
July 2011 |
Instructor -
Department of Mathematics & Statistics, Dalhousie University, Canada |
|
Sept 2008 –
July 2010 |
Adjunct
Professor - Department of Mathematics & Statistics, Dalhousie University,
Canada |
|
July 2008 –
August 2008 |
Professor –
Department of Mathematics, Faculty of Science, Mansoura University, Egypt |
|
October 2005
– June 24 2008 |
Professor -
Department of Statistics & Operations Research, College of Science, King
Saud University, Saudi Arabia |
|
October 2001
– Sept 2005 |
Associate
professor - Department of Statistics & Operations Research, College of
Science, King Saud University, Saudi Arabia |
|
Sept
1999 - Sept 2001 |
Assistant
professor - Department of Statistics & Operations Research, College of
Science, King Saud University, Saudi Arabia |
|
August 1996 –
August 1999 |
Assistant
professor - Department of Mathematics, Faculty of Science, Mansoura
University, Egypt |
|
October 1992
– July 1996 |
Graduate Research assistant,
Institute of Mathematics, Gdansk University, Poland |
|
March 1989 -
Sept 1992 |
Lecturer –
Department of Mathematics, Faculty of Science, Mansoura University,
Egypt. |
|
Sept 1985 –
Feb 1989 |
Assistant
lecturer - Department of Mathematics, Faculty of Science, Mansoura
University, Egypt |
|
|
|
Graduate Supervision
A) Ph. D. :-
|
Name |
Time |
Thesis Title |
|
Current Students: |
Started |
|
|
Thamer Manshi |
January 2016 |
It is not determined yet |
|
Omar Algamdi |
Sept 2015 |
It is not determined yet |
|
Ahlam Hamdy Mansoura University, Egypt |
September 2014 |
Analysis of Shock Models |
|
Past Students: |
Graduated |
|
|
Mansour A.
Al-Ameri |
July 2009 |
Statistical
analysis of competing risks models |
B) Ms. C. :-
|
Name |
Time |
Thesis Title |
|
|
Current Students: |
Started |
|
|
|
Ismail Furjani |
Sept
2014 |
Bayesian Analysis of a new family of
lifetime distributions |
|
|
Afaf Alzahrani |
Sept
2015 |
Statistical analysis of a competing risks
model |
|
|
Past Students: |
Graduated |
|
|
|
Abdel-Rahmanli Karawia |
June1999 |
Bayes
and empirical Bayes procedures in reliability theory |
|
|
Abdel-Fatah
Mustafa |
Oct. 2002 |
Reliability
equivalence of systems |
|
|
Mansour A.
Al-Ameri |
May 2003 |
Parameter
estimations using partial information |
|
|
Faysal
Al-Motarey |
Jan 2003 |
Study
of queuing network models |
|
|
Najeeb
Al-Matar |
June 2004 |
Effect
of the server capacity distribution on the optimal control of a bulk service
queuing system |
|
|
Ali Al-Fozan |
May 2005 |
Statistical
Estimators for System's Reliability Components using Masked Data |
|
|
Mohamed
Al-Saadi |
June 2006 |
Reliability
equivalence factors of systems |
|
|
Ibtsam
Abdusalam |
April 2007 |
Using
progressive censored data in the statistical inference |
|
|
Saad Al-Malki |
June 2007 |
Some
useful generalized statistical distributions |
|
|
Safar
El-Ghamdy |
May 2008 |
A
new class of generalized distributions |
|
Ph.D. External examiner
|
Ajay Kumar |
Ph.D. (Mathematics) Reliability
Analysis of Industrial Systems using GA and Fuzzy Approach. Department of
Mathematics, Indian Institute of Technology Roorkee, India, August 2009 |
|
Ashok
Shanubhogue |
Ph.D.
(Mathematics) Reliability Analysis using Fuzziness of Real-time Based
Industrial Processes. Department of Mathematics, Indian Institute of
Technology Roorkee, India, April 2010 |
|
Monika Rani |
Ph.D.
(Mathematics) Reliability Optimization of some Industrial Systems using ABC
technique. Department of Mathematics, Indian Institute of Technology Roorkee,
India, October 2013. |
|
Bhoopendra
Pachauri |
Ph.D.
(Mathematics) Modeling and Analysis of Software Reliability Growth Behavior
and Optimal Release Policy using Soft-Computing Techniques. ABV – Indian
Institute of Information Technology and Management Gwalior (M.P.) India,
September 2014. |
|
S. Kasthuri |
Ph.D.
(Mathematics) A study on some stochastic life time models in reliability,
Islamiah College, Bangladesh, November
2014. |
Courses Taught
Dalhousie University (CANADA)
|
Math
1060 / Stat 1060 |
Introductory Statistics for
Science and Health Sciences. I teach this course as well as I am the
coordinator. |
|
Math
1060/Stat 1060 Online |
I developed the online course
and teach it. |
|
Math
2060 / Stat 2060 / Econ 2260 |
Introduction to Probability and
Statistics |
|
Math
2080/ Stat 2080/ Econ 2280 |
Statistical Methods for Data
Analysis and Inference |
|
Math
3360 / Stat 3360 |
Probability |
|
Math
3380/Stat 3380 |
Sampling Techniques |
|
STAT 3460 |
Intermediate Statistic Theory |
|
STAT 4350 crossed with STAT 5350 |
Applied Multivariate Analysis |
|
STAT 5130 |
Bayesian Data Analysis |
|
|
|
Mount Saint Vincent University
(CANADA)
|
Math
2208 |
Introduction to Statistics I |
|
|
MATH
2209 |
Introduction to Statistics II |
|
|
Math
0020 |
College Algebra |
|
St. Francis Xavier University
(CANADA)
|
STAT 201 |
Elementary Business Statistics |
|
STAT 224/ENGR 224 |
Probability and Statistics for
Engineers |
|
MATH 223 |
Linear Algebra for Engineers
with Matlab |
|
MATH 385 |
Numerical Methods |
Saint Mary’s University (CANADA)
|
MGSC 1205 |
Quantitative Methods I |
King Saud University (SAUDI ARABIA)
Undergraduate Level
|
Csc 150 |
Basics in Computer Programming |
|
Csc 151 |
Structural Programming |
|
Stat
101 |
Introductory to Probability and
Statistics |
|
Stat
111 |
Elements of Distribution Theory |
|
Or 211 |
Linear Programming – 1 |
|
Stat
211 |
Probability 1 |
|
Stat
221 |
Basic Statistical Inference |
|
Stat
238 |
Statistical Computations – I |
|
Stat
212 |
Stochastic Processes – I |
|
Stat
421 |
Estimation Theory |
|
OR 361 |
Reliability Theory – I |
|
Stat
322 |
Decision Theory |
|
Stat
439 |
Data Analysis |
|
Stat
499 |
Graduation Project |
|
Or 499 |
Graduation Project |
Graduate Level
|
Stat
520 |
Theory of Statistics – I |
|
Stat
531 |
Analysis of Variance |
|
Stat
559 |
Theory of Statistics – II |
|
Stat
570 |
Stochastic Processes – I |
|
Stat
523 |
Special Topics in Statistics |
|
Stat
574 |
Survival Analysis |
|
Stat
576 |
Sample Survey |
|
Or 563 |
Theory of Reliability and Life
Testing |
|
Stat
621 |
Statistical Inference – I |
|
Stat
622 |
Statistical Inference – II |
|
Stat
623 |
Survival Analysis |
Mansoura University (EGYPT)
First Year
|
Math 1 |
Differentiation and Integration
– I |
|
Math 2 |
Geometry |
|
Math 3 |
Static and Dynamic – A |
|
Computer
Science (1) |
Introduction
to Computer and Operating Systems |
Second Year
|
Math 1 |
Introduction
to Statistics and Probability |
|
Math 2 |
Linear Algebra and Geometry |
|
Math 3 |
Computer Science (Basic
language) |
|
Math 2b |
Advanced Calculus and
Differential Equations |
Third Year
|
Math 1 |
Linear Programming |
|
Stat 1 |
Theory of Probability |
|
Stat 2 |
Statistical Methods – I |
|
Math 3 |
Introduction to Computer Science
and languages |
Fourth Year
|
Stat-Math
(3a) |
Probability Theory |
|
Stat
–Math (3B) |
Statistical Methods – II |
|
Stat-Math
(4a) |
Random Processes |
|
Stat
–Math (4B) |
Statistical Theory |
|
Computer
Science (2) |
Computer Language |
Graduate Level
|
Stat 1 |
Statistical
Inferences |
|
Stat 2 |
Random Processes |
|
Stat 3 |
Data Analysis |
|
Stat 5 |
Reliability Theory |
|
Stat 6 |
Computational
Statistics and Statistical Packages (Minitab, Spss, Sas) |
Suez Canal University (EGYPT)
|
|
Calculus I (Differentiation and
Integration) |
|
|
Differential Equations |
|
|
Algebra |
|
|
Static and Dynamics – I |
|
|
Special functions |
|
|
Real analysis |
|
|
Dynamic Programming |
Professional, Academic and
Administration Contributions
|
Committee |
Tasks |
|
Associate head of Departmental council committee Jan 2005 - June 2008 |
- Announce and arrange the schedules of meetings
in coordination with the department head. - Prepare and provide meeting reports. - Make reports available to the faculty. - Follow-up council directives. |
|
Coordinator
of research committee Sept 2004 - June
2008 |
- Revise the doctorate and master's degrees
proposals. And make sure of its completeness, before sending it to the
department and college councils. |
|
Coordinator of promotions committee Sept 2002 - June
2008 |
- Study applications for promotions and their
fulfillment of necessary conditions, and send report to the department
council. |
|
Coordinator of examinations and schedules committee Sept 2000 - June
2008 |
- Prepare the schedule of the academic load for
the faculty members and the teaching assistants - Prepare course timetable. - Scheduling students in the 499 class and
allocate them to their advisers. - Prepare term-examinations invigilation
timetables and places in coordination with instructors and coordinators of
the courses. - Coordinate make up examinations for the term
and final examinations of the department courses. |
Journals Edited
-
International Journal of Reliability
and Its Applications.
-
International Scholarly Research
Network (http://www.isrn.com/journals/probstat/editors)
Professional Associations
Member of Canadian Statistical Society
Member of Egyptian Mathematical
Society
Visiting Positions
|
June 15 –
July 15, 2004 |
Visiting
Department of Mathematics and Statistics, McMaster University, Canada,
invited by Professor N. Balakrishnan |
Reviews and Referring
o
Journal of Multivariate Analysis
o
Journal of Statistical Planning and
Inferences
o
Communication in Statistics – Theory
and Methods
o
Communication in Statistics –
Simulation
o
Pakistan Journal of Statistics
o
Reliability Engineering and System
Safety
o
Computers and Industrial Engineering
o
IEEE Transi. on Reliability
o
International Journal of Reliability
and its applications
o
Signal Processing
o
Quality Technology and Quantitative Management
o
Bulletin of Statistics and Economics
o
Physica A
Project Grants
|
Authors |
Project Title |
Budget |
|
Ammar M. Sarhan |
Empirical Bayes procedure |
15,000 SR |
|
M. Montaser and Ammar M. Sarhan |
Reliability equivalence factors of a parallel system with
nonidentical components |
19,000 SR |
|
Ammar M. Sarhan
and L. Tadj |
Optimal control of an inventory system with ameliorating
and deteriorating items |
20,000 SR |
|
L. Tadj and Ammar
M. Sarhan |
Parameters estimations of a Weibull model using dependent
masked data |
20,000 SR |
|
Ammar M. Sarhan |
Reliability equivalence factors of a parallel system |
16,000 SR |
|
Ammar M. Sarhan, A. S.
Al-Ruzaiza |
Reliability equivalence of a series-parallel system |
22,000 SR |
|
Ammar M. Sarhan and A. Abuammoh |
Parameters estimators for the generalized exponential
distribution |
20,000 SR |
|
Ammar M. Sarhan, |
Analysis of incomplete, censored data in competing risks
models with generalized exponential distributions |
15,000 SR |
|
Ammar M. Sarhan, L. Tadj |
Inference using record values from generalized Rayleigh
distribution with application, |
21,000 SR |
|
Ammar M. Sarhan, L. Tadj |
Parameter estimations of the generalized Rayleigh
distribution |
20,000 SR |
|
Ammar M. Sarhan and A. Abuammoh |
Statistical Inference using progressively Type-II censored
data with random scheme |
22,000 SR |
|
Ammar M. Sarhan, L. Tadj |
Introduction to Reliability Theory |
25,000 SR |
|
L. Tadj and Ammar M. Sarhan |
Introduction to Stochastic Processes |
20,000 SR |
Publications
A)
Works in Progress / Under review
Ammar M. Sarhan and A. Ismail
Inferences for a Step-Stress
Accelerated Life Test with Competing risks for Exponential Lifetimes, In Progress.
Ammar M. Sarhan
Exponentiated discrete Weibull
distribution, In progress.
Ammar M. Sarhan,
Bayes Inferences of the
Power Lindley distribution, In progress.
B) International Journals
2016 Fahimah A. Alawadhi, Ammar M. Sarhan
and David C. Hamilton,
Marshall-Olkin
extended two-parameter bathtub-shaped lifetime distribution,
Journal of Statistical Computation and Simulation, to appear.
2015 Ammar M. Sarhan, David C. Hamilton and B.
Smith
Estimation of P (Y<X) for a
two-parameter bath-tub shaped failure rate distribution,
International Journal
of Statistics and Probability, Vol. 4, No. 2, May 2015.
Ammar M. Sarhan, Joseph Apaloo,
Inferences for a two-parameter lifetime distribution with bathtub shaped hazard based on censored data,
International
Journal of Statistics and Probability; Vol. 4, No. 4
http://www.ccsenet.org/journal/index.php/ijsp/article/view/53898/28809
2014 Ammar M. Sarhan, Lotfi
Tadj, and David Hamilton,
A New Lifetime Distribution and its
Power Transformation,
Journal of Probability
and Statistics, 2014. http://dx.doi.org/10.1155/2014/532024
Abdelfattah Mustafa and Ammar M. Sarhan,
Availability Equivalence Factors of a General Repairable
Parallel-Series System,
Mathematical Problems in Engineering, 2014, 5, 1713-1723.
http://www.scirp.org/Journal/PaperInformation.aspx?PaperID=47066#.VLKbYCqF_VF
2013 Ammar M. Sarhan, Abd EL-Baset A. Ahmad
and Ibtesam A. Alasbahi,
Exponentiated Generalized Exponential Linear Distribution
Applied Mathematical Modelling,
Volume 37, Issue 5, 1 March 2013, Pages 2838-2849.
Ammar M. Sarhan, Joseph Apaloo,
Exponentiated modified Weibull
extension distribution, Reliability Engineering & System Safety, Volume
112, April 2013, Pages 137-144.
Ammar M. Sarhan, A. Mustafa,
Availability equivalence
factors of a general repairable series-parallel system, International
Journal of Reliability and Applications, Volume 14, (1), 11-26.
Ammar
M. Sarhan,
Bivariate
generalized Rayleigh distribution, International Journal of Reliability and
Application, Accepted.
2012 Ammar M. Sarhan,
David C. Hamilton and B. Smith,
Parameter estimation for a two-parameter
bathtub-shaped lifetime distribution, Applied Mathematical Modelling, Volume 36, Issue 11, November 2012,
Pages 5380–5392.
D.
Kundu , Ammar M. Sarhan and R.D.
Gupta,
On
Sarhan-Balakrishnan bivariate distribution,
Journal of Statistics and Probability, vol. 1, no. 3, 163 - 170, 2012.
Ammar M. Sarhan and A. Karawia
Parameter
estimates of the generalized linear failure rate distribution, International
Journal of Reliability and Application, Vol. 13,
No. 2, 2012; 91-104,
2011 Ammar M. Sarhan, David C.
Hamilton, B. Smith and D. Kundu,
Bivariate generalized linear failure rate
distribution, Computational Statistics and Data Analysis, 644-654
Zaindin M. and
Ammar M. Sarhan,
New
generalized Weibull distribution, Pakistan
Journal of Statistics, Vol. 27(1).
Ammar M. Sarhan and Mamdouh Montaser,
Parameter
estimations of linear failure rate distribution using progressively type-II
censored data, Applied
Science.
2010 Ammar M. Sarhan, David C. Hamilton and
Bruce Smith,
Statistical analysis of competing risks models, Reliab Eng
Syst Safety, Vol. 95 (9), 953-962.
Ammar M. Sarhan and A. S. Al-Ruzaiza,
Statistical inference of Weibull
model using progressively Type-II censored data with random scheme, Pakistan
Journal of Statistics, Vol. 26(1), 267-279.
Ammar M. Sarhan,
A. El-Gohary, A.H. El-Bassiouny and N. Balakrishnan,
Mixture of bivariate linear failure rate
distributions, International Journal of Reliability and its applications.
2009 Ammar M. Sarhan,
Reliability
equivalence factors of a general series-parallel system, Reliability
Engineering & System Safety, Vol. 94, 229-236.
Ammar
M. Sarhan,
Generalized
quadratic failure rate distribution.
International Journal of Applied Mathematics
& Statistics, Volume 14(S09), 94-106.
Ammar M. Sarhan and D. Kundu,
Generalized
linear failure rate distribution, Communication in Statistics – Theory and
Methods, Volume 38(5), 642 – 660.
Ammar
M. Sarhan and M. Zaindin,
Modified
Weibull distribution, Applied Science,
Volume 11, 123-136.
Ammar
M. Sarhan and S. Al-Ghamdi,
Estimations of
the parameters of the generalized quadratic hazard rate distribution using
Type-II censored data, Journal of Mathematical
Sciences - Advances and Application, Vol. 2(1), 85-104.
M.
Zaindin and Ammar M. Sarhan,
Parameters estimation
of the modified Weibull distribution, Applied Mathematical
Sciences, Vol. 3, no. 11, 541 – 549.
A.
Ismail and Ammar M. Sarhan,
Optimal
Design of Step-Stress Life Test with Progressively type-II Censored Exponential
Data, International Mathematical Forum, 4,
2009, no. 40, 1963 - 1976.
2008
Ammar M. Sarhan and D. Kundu,
Bayes
estimators for reliability measures in a geometric distribution model using
masked system life test data, Computational Statistics
and Data Analysis, vol. 52, no. 4, 1821-1836.
Ammar
M. Sarhan, Tadj, L. and Al-Malki,
Estimation of
the parameters of the generalized linear failure rate distribution, Bulletin
of Statistics & Economics (BSE), Vol. 2(S08), 52-63.
Ammar M. Sarhan
and A. Abuammoh,
Statistical Inference
using progressively Type-II censored data with random scheme, International
Mathematical Forum, 3, no. 35, 1713 – 1725.
Ammar
M. Sarhan, L. Tadj,
Inference
using record values from generalized Rayleigh distribution with application, Bulletin
of Statistics & Economics (BSE), Vol. 2(A08), 72-85.
Ammar
M. Sarhan, M. Al-Amrei and I. Al-Wasel,
Analysis of
progressive censoring competing risks data with binomial removals, International
Journal of Mathematical Analysis, Vol.
2, No. 20, 965 - 976.
Ammar
M. Sarhan, L. Tadj, A. Al-Khodari and A. Mustafa,
Equivalence
factors of a parallel- series system,
Applied Sciences, Vol.10, 219-230.
L.
Tadj, Ammar M. Sarhan, and A. El-Gohary,
Optimal control
of an inventory system with ameliorating and deteriorating items, Applied Sciences, Vol.10, 243-255.
M.
Montaser and Ammar M. Sarhan,
Reliability
equivalence factors of a parallel system with nonidentical components, Intrenational
Journal of Reliability and Applications, Vol. 9 (1), 95-112.
A.
Al-Khodairi, Ammar M. Sarhan and
L. Tadj,
Parameter
estimations of the generalized Rayleigh distribution, International Journal
of Reliability & Application, Vol. 9,
1-13.
2007 Ammar M. Sarhan,
Analysis of incomplete,
censored data in competing risks models with generalized exponential
distributions, IEEE Transi. on Reliability, Vol. 56(1), 132-139.
A.
Abuammoh and Ammar M. Sarhan,
Parameters
estimators for the generalized exponential distribution, International
Journal of Reliability and Applications, Vol. 8, 1, 17-025.
Ammar
M. Sarhan, F. M. Guess and J. S. Usher,
Estimators for
reliability measures in a geometric distribution model using dependent masked
system life test data, IEEE Transi. on Reliability, Vol. 56 (2),
312-320.
A.
Mustafa, Ammar M. Sarhan and A.
Al-Ruzaiza,
Reliability
equivalence of a parallel-series system, Pakistan Journal of
Statistics, Vol. 23, (3), 241-254.
Ammar
M. Sarhan and N. Balakrishnan,
A new class of bivariate
distributions and its mixture, Journal of Multivariate Analysis, Vol. 98(7), 1508-1527.
2006 Ammar M. Sarhan,
Estimations
of the parameters in a two-component system using dependent masked data, International
Journal of Reliability and Applications, Vol. 7, No.1, 129-145.
Debasis Kundu and Ammar M. Sarhan,
Analysis
of incomplete data in presence of competing risks among several groups, IEEE
Transi. on Reliability, Vol. 55(2),
270-280.
Awad
El-Gohary and Ammar M. Sarhan.
The
distributions of sums, products, ratios and differences for Marshall-Olkin
bivariate exponential distribution, International Journal of Applied
Mathematics.
Ammar
M. Sarhan and A. Mustafa.
Reliability
equivalence of a series system consists of n independent and
non-identical components, International Journal of Reliability and
Applications, Vol. 7, No. 2.
Ammar
M. Sarhan and L. Tadj.
Parameters
estimations of a Weibull model using dependent masked data, International
Journal of Applied Mathematics, Vol. 19, No. 1, 105-124.
Ammar
M. Sarhan, A. M. Abouammoh, and M. Al-Ameri,
Exact maximum
likelihood estimation using masked system life test data, International
Journal of Reliability and Applications, Vol. 7, No. 1, 41-5.
Awad
El-Gohary and Ammar M. Sarhan,
Optimal control
and synchronization of Lorenz system with complete unknown parameters, Journal
of Chaos, Solitons and Fractals, Vol. 30(5), 1122-1132.
2005 Ammar M. Sarhan,
Reliability
equivalence factors of a parallel system, Reliability Engineering &
System Safety, Vol. 87, 405-411.
Ammar
M. Sarhan and A. El-Gohary,
Parameter
estimations in the complementary Weibull reliability model, International
Journal of Reliability and Applications, Vol. 6, 41-51.
Awad
El-Gohary and Ammar M. Sarhan,
Estimations
of the parameters in a three nonindependent component series system subjected
to sources of shocks, Applied Mathematics and Computation, Vo. 160, Issue
1, 29-40.
A. S.
Al-Ruzaiza and A. M. Sarhan,
Estimators
for parameters included in cold standby systems with imperfect switches,
International Journal of Reliability and Applications, Vol. 6(2), 65-78.
2004 Ammar M. Sarhan,
Reliability
equivalence factors of a bridge network system, International Journal of Reliability
and Applications, Vol. 5(2), 81-103.
Ammar
M. Sarhan,
Parameter
estimations in a general hazard rate model using masked data, Applied
Mathematics and Computation, Vol. 153, Issue 2, 513-536.
Ammar
M. Sarhan,
Parameter
estimations in linear failure rate model using masked data, Applied
Mathematics and Computation, Vol. 151, Issue 1, 233-249.
Ammar M. Sarhan, A. S. Al-Ruzaiza, 1. A.
Alwasel and Awad El-Gohary,
Reliability
equivalence of a series-parallel system, Applied Mathematics and Computation
, Vol. 154, Issue 1, 257-277.
Ahmed
H. El-Bassiouny, Ammar M. Sarhan and M. Al-Garian,
Testing
Exponentiality Against NBUFR (NWUFR), Applied Mathematics and Computation,
149, 351-358.
2003
Ammar M. Sarhan,
Estimations
of parameters in Pareto reliability model using masked data, Reliability
Engineering & System Safety, 82, 75-83.
Ammar
M. Sarhan,
Nonparametric
empirical Bayes procedure, Reliability Engineering & System Safety, 80,
115-122.
Ammar
M. Sarhan,
Empirical
Bayes estimates in exponential reliability model, Applied Mathematics and
Computation, 135(2-3): 319-332.
Ammar
M. Sarhan,
Estimation
of system components reliabilities using masked data, Applied Mathematics
and Computation, Vol. 136(l): 79-92.
Lotfi
Tadj and A.M. Sarhan.
Effect
of the server capacity distribution on the optimal control of a bulk service
queuing system, Journal of Chaos, Solitons and Fractals, Vol. 18,
1101-1110.
Ammar
M. Sarhan and Ahmed H. El-Bassiouny,
Estimation
of components reliability in a parallel system using masked system life data, Applied
Mathematics and Computation, Vol. 138(l): 61-75.
Ammar
M. Sarhan and Awad El-Gohary,
Parameter
estimations of I-out-of-2: G repairable system, Applied Mathematics and
Computation, Vol. 145, Issues 2-3,
469-479.
Ammar
M. Sarhan and Lotfi Tadj,
Parameters
estimation of a repairable system, Applied Mathematics and Computation, Vol.
138(2-3), 217-226.
2002
Ammar M. Sarhan,
Reliability
equivalence with a basic series/parallel system, Applied Mathematics
and Computation, Vol. 132(l): 115-133.
Ammar
M. Sarhan and A. M. Abouammoh,
Joint
Structural Importance of two Components, International Journal of
reliability and applications, Vol. 3(4),
173-183.
2001 Ammar M. Sarhan,
Reliability
estimations of components from masked system life data, Reliability
Engineering & System Safety, Vol.
74(l), 107-113.
Ammar
M. Sarhan,
The
Bayes procedure in exponential reliability family models using conjugate convex
tent prior family, Reliability Engineering & System Safety, Vol.
7(1), 97-102.
Ammar
M. Sarhan and A.M. Abouammoh,
Reliability
of k-out-of-n nonrepairable systems with nonindependent
components subjected to common shocks, Microelectronics Reliability, Vol.
(4), 617-621.
Ammar M. Sarhan
and A.M. Abouammoh,
Reliability of
k-out-of-n cold standby system with imperfect switches, International
Journal of Reliability and Applications, Vol. 2(4), 253-262.
2000 Ammar M. Sarhan,
Reliability equivalence
of independent and non-identical components series systems, Reliability
Engineering & System Safety, Vol.
67(3), 293-300.
1999 Ammar M. Sarhan,
Empirical Bayes
estimators of indexed parameters of exponential families, International
Journal of Applied Mathematics, Vol. 1 (4),
365-3 71.
Ammar
M. Sarhan,
Bayes
estimation of the general hazard rate model, Reliability Engineering
& System Safety, Vol. 66(l), 85-91.
Ammar M. Sarhan
and A. Karawia,
Empirical Bayes
estimators for exponential reliability measures, International Journal of
Applied Mathematics, Vol. ](5), 521-528.
1996 F. Grabski and Ammar M. Sarhan,
Empirical Bayes
estimation in the case of exponential reliability, Reliability Engineering
& System Safety, Vol. 53(2), 105-113.
1995 Ammar M. Sarhan,
Bayesian
estimation of the Service factors of repairable system components, Advances
in Modeling and Analysis, C, AMSE Press, France, Vol. 46, No. 3, 47-53.
F. Grabski and
Ammar M. Sarhan,
Bayesian
estimation in exponential reliability, Advances in Modeling and Analysis, B,
AMSE Press, France, Vol. 34 No. 1, 33-43.
F. Grabski and
Ammar M. Sarhan,
Bayesian
estimation of the Weibull reliability, Zagadnienia Eksplotacjin Masun,
Poland, Vol. 101, No. 1, 29-36.
F. Grabski and
Ammar M. Sarhan,
Bayesian
estimation of parameters of two nonindependent components exponential series
system, Zagadnienia Eksplotacjin Maszyn, Poland, Vol. 102, No.
2, 175-187.
F. Grabski and
Ammar M. Sarhan.
Notes on prior distribution
in Bayesian estimation of the Weibull scale parameter, Preprint in the
University of Gdansk, Poland, No. 109.
1994 Ammar M. Sarhan,
Bayesian
estimation in the Weibull reliability with a known shape parameter, Preprint
in the University of Gdansk, Poland, No. 105.
F. Grabski and
Ammar M. Sarhan,
The Bayesian
point and interval estimation of parameters of exponential reliability, Zeszyty
Nankowe Akademii Marynarki Wojennej, Poland, 1994, Volume
XX-XVNO. 11120.
C) Conferences
|
2016 |
Ammar M. Sarhan, A two parameter Discrete
Distribution with a bathtub hazard shape, 2nd Researchers-Statisticians and
Young Statisticians Congress, May 4-8, 2016, Ankara, Turkey. |
|
2015 |
Ammar M. Sarhan,
Joseph Apaloo, The Bivariate Two Parameter
Bathtub Hazard Rate Distribution, 43rd Annual Meeting of the Statistical Society of Canada, June 14-17,
2015 at Dalhousie University, Halifax, NS, Canada. |
|
2014 |
Ammar M. Sarhan,
Marshall-Olkin extended two-parameter
bathtub-shaped lifetime distribution, The
26th Annual International Conference on Statistics and Modeling in Human and
Social Sciences, March 25-27, 2014, Cairo, Egypt. |
|
2012 |
Ammar M. Sarhan, Exponentiated Modified Weibull Extension
Distribution, 40th Annual Meeting of
the Statistical Society of Canada. June 3-6, 2012 at the University of
Guelph, Guelph, ON, Canada. |
|
2008 |
Ammar M. Sarhan, M. Al-Amrei and
I. Al-Wasel, Analysis of incomplete data in competing
risks models with generalized Weibull distributions, Conference in
Statistics & 25-26 March, Cairo, Egypt. Ammar M. Sarhan and I. Al-Asbahi, Statistical Inference for the linear
exponential model using progressively censored data, Conference in
Statistics & 25-26 March, Cairo, Egypt. |
|
2004 |
Ammar M. Sarhan, M. Abokalam and A. Al-Fozan, Parameters estimations in Pareto reliability model using dependent
masked system life-test data, The seventh Conference of the Saudi
Association of Mathematical Sciences, 7-8 April, Prince Sultan
University, Riyadh, Saudi Arabia. Ammar M. Sarhan and M. Al-Saadi, Reliability equivalence of a non-identical component series parallel
system, The seventh Conference of the Saudi Association of Mathematical
Sciences, 7-8 April, Price Sultan University, Riyadh, Saudi Arabia. |
|
2000 |
Ammar M. Sarhan and A. Mustafa. Reliability equivalence factors of a complex system, The Annual
Conference ISSR December, 7-10, Cairo University, Cairo, Egypt. Ammar M. Sarhan, Components reliability estimations from masked system life test data,
The fifth Conference of the Saudi Association of Mathematical Sciences,
11-12 April, King Saud University, Riyadh, Saudi Arabia. |
|
1999 |
Ammar M. Sarhan and A. Mustafa. Reliability equivalence of independent and non-identical components
series systems, The Annual Conference ISSR Cairo University, Egypt, 1999. Ammar M. Sarhan and A. Karawia, Empirical Bayes estimates of exponential reliability measures, Conference
of Statistics and Computers and their applications, Cairo, Egypt,
1999. |
|
1998 |
Ammar M. Sarhan, An Empirical Bayes procedure. International Congress of Mathematics,
August 18-27, Berlin, Germany. http://www.math.uni-bielefeld.de/ICM98/abstracts/ps/late_ps.html |
|
|
|
D) Workshops
|
2009 |
Ammar M. Sarhan, D.C. Hamilton and B. Smith, Analysis of a competing
risks model with the Chen distribution. Atlantic Mathematical Biology
Workshop, Dalhousie University, Halifax, NS, CANADA, 27 April, 2009. http://www.unb.ca/bid/Halifax09/abstracts.html#sarhan |
E) Books
|
2011 |
Ammar M. Sarhan and L. Tadj Introduction to
Reliability Theory, King Saud University |
|
2008 |
L. Tadj and Ammar M.
Sarhan Introduction to
Stochastic Processes, King Saud University |