EXERCISES in Visual Studio .NET

Maker QR Code JIS X 0510 in Visual Studio .NET EXERCISES
EXERCISES
Decoding QR Code JIS X 0510 In .NET
Using Barcode Control SDK for Visual Studio .NET Control to generate, create, read, scan barcode image in Visual Studio .NET applications.
exactly one unit is placed each time the on-hand inventory decreases by one unit The lead times of the replenishments are independent and identically distributed random variables with mean Establish an equivalence with the Erlang loss model and give expressions for the long-run average on-hand inventory and the long-run fraction of demand that is lost 514 In an electronic system there are c elements of a crucial component connected in parallel to increase the reliability of the system Each component is switched on and the lifetimes of the components have an exponential distribution with mean 1/ The lifetimes of the components are independent of each other The electronic system is working as long as at least one of the components is functioning, otherwise the system is down A component that fails is replaced by a new one It takes an exponentially distributed time with mean 1/ to replace a failed component Only one failed component can be replaced at a time (a) Use a continuous-time Markov chain to calculate the long-run fraction of time the system is down Specify the transition rate diagram rst (b) Does the answer in (a) change when the replacement time of a failed component has a general probability distribution with mean 1/ (Hint : compare the transition rate diagram with the transition rate diagram in the Erlang loss model) 515 Reconsider Exercise 514 but this time assume there are ample repairmen to replace failed components (a) Use a continuous-time Markov chain to calculate the long-run fraction of time the system is down Specify the transition rate diagram rst (b) What happens to the answer in (a) when the replacement time is xed rather than exponentially distributed (Hint : compare the transition rate diagram with the transition rate diagram in the Engset loss model) 516 Suppose you have two groups of servers each without waiting room The rst group consists of c1 identical servers each having an exponential service rate 1 and the second group consists of c2 identical servers each having an exponential service rate 2 Customers for group i arrive according to a Poisson process with rate i (i = 1, 2) A customer who nds all servers in his group busy upon arrival is served by a server in the other group, provided one is free, otherwise the customer is lost Show how to calculate the long-run fraction of customers lost 517 Consider a conveyor system at which items for processing arrive according to a Poisson process with rate The service requirements of the items are independent random variables having a common exponential distribution with mean 1/ The conveyor system has two work stations 1 and 2 that are placed according to this order along the conveyor Workstation i consists of si identical service channels, each having a constant processing rate of i (i = 1, 2); that is, an item processed at workstation i has an average processing time of 1/( i ) Both workstations have no storage capacity and each service channel can handle only one item at a time An arriving item is processed by the rst workstation in which a service channel is free and is lost when no service channel is available at either of the stations Show how to calculate the fraction of items lost and solve for the numerical data = 10, = 1, 1 = 2, 2 = 15, s1 = 5 and s2 = 5 (Answer: 00306) Verify experimentally that the loss probability is nearly insensitive to the distributional form of the service requirement (eg compute the loss probability 00316 for the data when the service requirement has an H2 distribution with balanced means and a squared coef cient of variation of 4) 518 Consider a stochastic service system with Poisson arrivals at rate and two different groups of servers, where each arriving customer simultaneously requires a server from both groups An arrival not nding that both groups have a free server is lost and has no further in uence on the system The ith group consists of si identical servers (i = 1, 2) and each server can handle only one customer at a time An entering customer occupies the two assigned servers from the groups 1 and 2 during independently exponentially distributed times with respective means 1/ 1 and 1/ 2 Show how to calculate the loss probability
Generating QR In Visual Studio .NET
Using Barcode encoder for VS .NET Control to generate, create Denso QR Bar Code image in .NET applications.
Read QR Code JIS X 0510 In .NET
Using Barcode scanner for .NET framework Control to read, scan read, scan image in VS .NET applications.
Scan Bar Code In .NET
Using Barcode reader for .NET Control to read, scan read, scan image in .NET applications.
Encoding Denso QR Bar Code In .NET Framework
Using Barcode maker for ASP.NET Control to generate, create QR image in ASP.NET applications.
Printing Barcode In Visual Studio .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create barcode image in VS .NET applications.
Bar Code Drawer In Visual Studio .NET
Using Barcode encoder for .NET Control to generate, create bar code image in Visual Studio .NET applications.
Decoding Data Matrix ECC200 In .NET
Using Barcode reader for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Bar Code Creation In VS .NET
Using Barcode generation for ASP.NET Control to generate, create bar code image in ASP.NET applications.
Barcode Drawer In C#
Using Barcode creator for VS .NET Control to generate, create bar code image in Visual Studio .NET applications.
UPC - 13 Generation In Java
Using Barcode printer for Java Control to generate, create EAN-13 image in Java applications.