This investigation presents a heuristic method for consumable resource allocation problem in multi-class dynamic Project Evaluation and Review Technique (PERT) networks, where new projects from different classes (types) arrive to system according to independent Poisson processes with different arrival rates. Each activity of any project is operated at a devoted service station located in a node...

The cellular composition of heterogeneous samples can be predicted using an expression deconvolution algorithm to decompose their gene expression profiles based on pre-defined, reference gene expression profiles of the constituent populations in these samples. However, the expression profiles of the actual constituent populations are often perturbed from those of the reference profiles due to g...

Of the mutationally defined rhythm genes in Drosophila melanogaster, period (per) has been studied the most. We have molecularly characterized three older per mutants-perT, perClk, and per04-along with a novel long-period one (perSLIH). Each mutant is the result of a single nucleotide change. perT, perClk, and perSLIH are accounted for by amino acid substitutions; per04 is altered at a splice s...

In this research, both resource allocation and reactive resource allocation problems in multi-server dynamic PERT networks are analytically modeled, where new projects are expected to arrive according to a Poisson process, and activity durations are also known as independent random variables with exponential distributions. Such system is represented as a queuing network, where multi servers at ...

Abstract This research conducted in one construction company Indonesia, the was facing several problems, many projects that already ended have delays. Overdue payment of can reach Rp 252.544.148.-. For calculating late save researcher using Critical Path Method (CPM)-Crashing. CPM-Crashing method accelerate project duration by increase resource budget, so doesn’t need to pay overdue payment. Th...

Ad Ad Addr dr dres es ess s s fo fo for r r Co Co Corr rr rres es espo po pond nd nden en ence ce ce: : : Ra Rach chel el L Lam ampe pert rt, MD MD

Ad Ad Addr dr dres es ess s s fo fo for r r Co Co Corr rr rres es espo po pond nd nden en ence ce ce: : : Ra Rach chel el L Lam ampe pert rt, MD MD

The Critical Path Method (CPM) and its development to probabilistic environment, the Program Evaluation and Review Technique (PERT), are the most common tools for predicting and managing different short time or long time projects. However, one of the main difficulties in using mathematical models in real world applications is the vagueness and uncertainty of data and parameters such as activity...