Discussion: “An Application of Dimensional Analysis to Entropy-Wear Relationship,” (Amiri, M., Khonsari, M. M., Brahmeshwarkar, S., 2012, J. Tribol., 134, P. 011604)

کدهای ثابت دوری از طول p^s روی حلقه (r= f_(p^m )+uf_(p^m

کدهای پایادوری نقش ویژه ای را در نظریه ی کدهای تصحیح کننده ی خطا بازی می کنند. مهمترین نوع از این کدها، کدهای دوری هستند. در این پایان نامه پس از بیان مقدماتی از جبر، قواعد و فواصل همینگ برای کدهای منفی دوری که نوع خاصی از کدهای پایادوری هستند بیان می شوند. در ادامه کدهای پایادوری را روی حلقه r=f_(p^m )+uf_(p^m ) معرفی می کنیم،که در آن f_q=f_(p^m ) از مرتبه q است و u متغیر است. سپس قواعد و فواص...

A Mixed Integer Convexity Result with an Application to an M/M/s Queueing System

Many optimization problems in queueing theory have functions with integer and real variables. Convexity results for these functions can be obtained by fixing either the integer or the real variable where bounds of the considered function play an important role. Tokgöz, Maalouf and Kumin [11] introduces the concept of mixed convexity for functions with real and integer variables and obtain conve...

How , M . J . , Christy , J . H . , Temple , S . E . , Hemmi , J . M . , Justin Marshall , N .

M/M/1 Feedback Queue Subject to Catastrophe and Repairment

‎In this paper‎, ‎an M/M/1 queue with instantaneous Bernoulli feedback is studied in the event of server failure‎, ‎the catastrophe occurs and after repair‎, ‎it starts to work again‎. ‎The transient response for the probability function of the system size is presented‎. ‎The steady state analysis of system size probabilities and some performance measures of system are provided‎. ‎Then the resu...

M m m Queue with Balking, Reneging and Additional Servers

In this paper, we consider a multi-server queuing system in which additional servers are allowed for a longer queue to reduce the customer’s balking and reneging behavior. The customers are assumed to arrive in Poisson fashion and their service- times follow exponential distribution. The number of servers in long run depends on the queue-length. We obtain equilibrium queue size distribution. Th...