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A) International Journals

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  • Ammar M. Sarhan, (2017 ). A two-parameter discrete distribution with a bathtub hazard shape, Communications for Statistical Applications and Methods, accepted.

  • Fahimah A. Alawadhi, Ammar M. Sarhan and David C. Hamilton, (2016). Marshall-Olkin extended two-parameter bathtub-shaped lifetime distribution,  Journal of Statistical Computation and Simulation, 86(18):1-14.

  • Ammar M. Sarhan, David C. Hamilton and B. Smith, (2015). 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.

  • Ammar M. Sarhan, Joseph Apaloo, (2015). 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

  • Ammar M. Sarhan, Lotfi Tadj, and David Hamilton, (2014). 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, (2014). 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   

  • Ammar M. Sarhan, Abd EL-Baset A. Ahmad and Ibtesam A. Alasbahi, (2013). Exponentiated Generalized Exponential Linear Distribution Applied Mathematical Modelling, Volume 37, Issue 5, 1 March 2013, Pages 2838-2849.

  • Ammar M. Sarhan, Joseph Apaloo, (2013). Exponentiated modified Weibull extension distribution, Reliability Engineering & System Safety, Volume 112, April 2013, Pages 137-144.

  • Ammar M. Sarhan, A. Mustafa, (2013). Availability equivalence factors of a general repairable series-parallel system, International Journal of Reliability and Applications, Volume 14, (1), 11-26.

  • Ammar M. Sarhan, (2013). Bivariate generalized Rayleigh distribution, International Journal of Reliability and Application, Accepted.

  • Ammar M. Sarhan, David C. Hamilton and B. Smith, (2012). 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, (2012). On Sarhan-Balakrishnan bivariate distribution, Journal of Statistics and Probability, vol. 1, no. 3, 163 - 170.

  • Ammar M. Sarhan and A. Karawia, (2012). Parameter estimates of the generalized linear failure rate distribution, International Journal of Reliability and Application, Vol. 13, No. 2, 2012; 91-104,          

  • Ammar M. Sarhan, David C. Hamilton, B. Smith and D. Kundu, (2011). Bivariate generalized linear failure rate distribution, Computational Statistics and Data Analysis, 644-654.

  • Zaindin M. and Ammar M. Sarhan, (2011). New generalized Weibull distribution, Pakistan Journal of Statistics, Vol. 27(1).

  • Ammar M. Sarhan and Mamdouh Montaser, (2011). Parameter estimations of linear failure rate distribution using progressively type-II censored data, Applied Science.

  • Ammar M. Sarhan, David C. Hamilton and Bruce Smith, (2010). Statistical analysis of competing risks models, Reliab Eng Syst Safety, Vol. 95 (9), 953-962.

  • Ammar M. Sarhan and A. S. Al-Ruzaiza, (2010). 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, (2010). Mixture of bivariate linear failure rate distributions, International Journal of Reliability and its applicationsAmmar M. Sarhan, (2009). Reliability equivalence factors of a general series-parallel system, Reliability Engineering & System Safety, Vol. 94,   229-236.

  • Ammar M. Sarhan, (2009). Generalized quadratic failure rate distribution. International Journal of Applied Mathematics & Statistics, Volume 14(S09), 94-106.

  • Ammar M. Sarhan and D. Kundu, (2009). Generalized linear failure rate distribution, Communication in Statistics – Theory and Methods, Volume 38(5), 642 – 660.

  • Ammar M. Sarhan and M. Zaindin, (2009). Modified Weibull distribution, Applied Science, Volume 11, 123-136.

  • Ammar M. Sarhan and S. Al-Ghamdi, (2009). 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, (2009). Parameters estimation of the modified Weibull distribution, Applied Mathematical Sciences, Vol. 3, no. 11, 541 – 549.

  • A. Ismail and Ammar M. Sarhan, (2009). Optimal Design of Step-Stress Life Test with Progressively type-II Censored Exponential Data, International Mathematical Forum, 4, 2009, no. 40, 1963 - 1976.

  • Ammar M. Sarhan and D. Kundu, (2008). 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, (2008). 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,  (2008). Statistical Inference using progressively Type-II censored data with random scheme, International Mathematical Forum, 3, no. 35, 1713 – 1725.

  • Ammar M. Sarhan, L. Tadj, (2008). 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, (2008). 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, (2008). Equivalence factors of a parallel- series system, Applied Sciences, Vol.10, 219-230.

  • L. Tadj, Ammar M. Sarhan, and A. El-Gohary, (2008). Optimal control of an inventory system with ameliorating and deteriorating items, Applied Sciences, Vol.10,   243-255.

  • M. Montaser and Ammar M. Sarhan, (2008). Reliability equivalence factors of a parallel system with nonidentical components, Intrenational Journal of Reliability and Applications, Vol. 9 (1),    95-112.

  • Al-Khodairi, Ammar M. Sarhan and L. Tadj, (2008). Parameter estimations of the generalized Rayleigh distribution, International Journal of Reliability & Application, Vol. 9,   1-13.

  • Ammar M. Sarhan, (2007).  Analysis of incomplete, censored data in competing risks models with generalized exponential distributions, IEEE Transi. on Reliability, Vol. 56(1), 132-139.

  • Abuammoh and Ammar M. Sarhan, (2007). 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,  (2007). 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.

  • Mustafa, Ammar M. Sarhan and A. Al-Ruzaiza,  (2007). Reliability equivalence of a parallel-series system, Pakistan Journal   of Statistics, Vol. 23, (3), 241-254.

  • Ammar M. Sarhan and N. Balakrishnan,  (2007). A new class of bivariate distributions and its mixture, Journal of Multivariate Analysis, Vol. 98(7), 1508-1527.

  • Ammar M. Sarhan,  (2006). 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,  (2006). 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.  (2006). 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.  (2006). 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.  (2006). 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,  (2006). 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,  (2006). Optimal control and synchronization of Lorenz system with complete unknown parameters, Journal of Chaos, Solitons and Fractals, Vol. 30(5),   1122-1132.

  • Ammar M. Sarhan,  (2005). Reliability equivalence factors of a parallel system, Reliability Engineering & System Safety, Vol. 87,   405-411.

  • Ammar M. Sarhan and A. El-Gohary, (2005). 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, (2005). 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, (2005).  Estimators for parameters included in cold standby systems with imperfect switches, International Journal of Reliability and Applications, Vol. 6(2),   65-78.

  • Ammar M. Sarhan, (2004). Reliability equivalence factors of a bridge network system, International Journal of Reliability and Applications, Vol. 5(2),   81-103.

  • Ammar M. Sarhan, (2004). Parameter estimations in a general hazard rate model using masked data, Applied Mathematics and Computation, Vol. 153, Issue 2,   513-536.

  • Ammar M. Sarhan, (2004). 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, (2004). 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, (2004). Testing Exponentiality Against NBUFR (NWUFR), Applied Mathematics and Computation, 149, 351-358.

  • Ammar M. Sarhan, (2003). Estimations of parameters in Pareto reliability model using masked data, Reliability Engineering & System Safety, 82, 75-83.

  • Ammar M. Sarhan, (2003). Nonparametric empirical Bayes procedure, Reliability Engineering & System Safety, 80, 115-122.

  • Ammar M. Sarhan, (2003). Empirical Bayes estimates in exponential reliability model, Applied Mathematics and Computation, 135(2-3): 319-332.

  • Ammar M. Sarhan, (2003). Estimation of system components reliabilities using masked data, Applied Mathematics and Computation, Vol. 136(l): 79-92.

  • Lotfi Tadj and A.M. Sarhan. (2003). 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, (2003). 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, (2003). 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, (2003). Parameters estimation of a repairable system, Applied Mathematics and Computation, Vol. 138(2-3),   217-226.

  • Ammar M. Sarhan, (2002). Reliability equivalence with a basic series/parallel system, Applied Mathematics and Computation, Vol. 132(l): 115-133.

  • Ammar M. Sarhan and A. M. Abouammoh, (2002). Joint Structural Importance of two Components, International Journal of reliability and applications, Vol. 3(4),   173-183.

  • Ammar M. Sarhan, (2001). Reliability estimations of components from masked system life data, Reliability Engineering & System Safety, Vol.  74(l),   107-113.

  • Ammar M. Sarhan, (2001). 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, (2001). 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, (2001). Reliability of k-out-of-n cold standby system with imperfect switches, International Journal of Reliability and Applications, Vol. 2(4),   253-262.

  • Ammar M. Sarhan, (2000). Reliability equivalence of independent and non-identical components series systems, Reliability Engineering & System Safety, Vol.  67(3),   293-300.

  • Ammar M. Sarhan, (1999). Empirical Bayes estimators of indexed parameters of exponential families, International Journal of Applied Mathematics, Vol. 1 (4),   365-3 71.

  • Ammar M. Sarhan, (1999). Bayes estimation of the general hazard rate model, Reliability Engineering & System Safety, Vol.  66(l),   85-91.

  • Ammar M. Sarhan and A. Karawia,  (1999). Empirical Bayes estimators for exponential reliability measures, International Journal of Applied Mathematics, Vol. ](5),   521-528.

  • F. Grabski and Ammar M. Sarhan,  (1996). Empirical Bayes estimation in the case of exponential reliability, Reliability Engineering & System Safety, Vol. 53(2),   105-113.

  • Ammar M. Sarhan,  (1995). 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,  (1995). 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,  (1995). Bayesian estimation of the Weibull reliability, Zagadnienia Eksplotacjin Masun, Poland, Vol. 101, No. 1, 29-36.

  • F. Grabski and Ammar M. Sarhan,  (1995). 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.   (1995). Notes on prior distribution in Bayesian estimation of the Weibull scale parameter, Preprint in the University of Gdansk, Poland, No. 109.

  • Ammar M. Sarhan,  (1994). 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,  (1995). The Bayesian point and interval estimation of parameters of exponential reliability, Zeszyty Nankowe Akademii Marynarki Wojennej, Poland, 1994, Volume XX-XVNO. 11120.

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B)  Conferences

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  • Ammar M. Sarhan, (2016). A two parameter Discrete Distribution with a bathtub hazard shape, 2nd Researchers-Statisticians and Young Statisticians Congress, May 4-8, 2016, Ankara, Turkey.

  • Ammar M. Sarhan, Joseph Apaloo, (2015). 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.

  • Ammar M. Sarhan, (2014). 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.

  • Ammar M. Sarhan, (2012). 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.

  • Ammar M. Sarhan, M. Al-Amrei and I. Al-Wasel, (2008). 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, (2008). Statistical Inference for the linear exponential model using progressively censored data, Conference in Statistics & 25-26 March, Cairo, Egypt.

  • Ammar M. Sarhan, M. Abokalam and A. Al-Fozan, (2004). 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, (2004). 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.

  • Ammar M. Sarhan and A. Mustafa. (2000). Reliability equivalence factors of a complex system, The Annual Conference ISSR December, 7-10, Cairo University, Cairo, Egypt.

  • Ammar M. Sarhan, (2000). 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.

  • Ammar M. Sarhan and A. Mustafa, (1999). Reliability equivalence of independent and non-identical components series systems, The Annual Conference ISSR Cairo University, Egypt, 1999.

  • Ammar M. Sarhan and A. Karawia, (1999). Empirical Bayes estimates of exponential reliability measures, Conference of Statistics and Computers and their applications, Cairo, Egypt, 1999.

  • Ammar M. Sarhan, (1998). 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

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C) Workshops

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  • Ammar M. Sarhan, D.C. Hamilton and B. Smith, (2009). 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

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D) Books​

  • Ammar M. Sarhan and L. Tadj, (2011).  Introduction to Reliability Theory, King Saud University

  • L. Tadj and Ammar M. Sarhan, (2008). Introduction to Stochastic Processes, King Saud University

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