When deploying and administering systems infrastructures it is still common to think in terms of individual machines rather than view an entire infrastructure as a combined whole. This standard practice creates many problems, including labor-intensive administration, high cost of ownership, and limited generally available knowledge or code usable for administering large infrastructures. The mod...

this paper addresses the mixed integer reliability redundancy allocation problems to determine simultaneous allocation of optimal reliability and redundancy level of components based on three objective goals. system engineering principles suggest that the best design is the design that maximizes the system operational effectiveness and at the same time minimizes the total cost of ownership (tco...

The location of a well related to surface drainage ways is important in determining the potential for groundwater contamination from surface water flow. Locating a well in a safe place needs careful consideration and planning.To determine the effects of well depth on water quality, the wells up to 4 m. depth and 100 m. far from river were selected in Isfahan. Geologically, the earth in this zon...

Arthritis of the hip is a cause of significant morbidity to the sufferer, for which total hip replacement is firmly established as an effective treatment. In order to assess the cost utility and benefit of total hip replacement, we compared the costs incurred to the health benefit accrued as measured by improvement in pre to post operative Harris hip scores, WOMAC osteoarthritis indices and SF ...

OBJECTIVES The benefits of paternal investment have long been explored by assessing the impact of father's presence on child wellbeing. Previous studies, however, have only examined the average effect of father's presence on child survivorship. Here we assess the total fitness cost to men of deserting (or the benefit of staying), by considering effects on the entire progeny. We estimate the tot...

By a decision process is meant a pair (X, r), where X is an arbitrary set (the state space), and r associates to each point x in X an arbitrary nonempty collection of discrete probability measures (actions) on X. In a decision process with nonnegative costs depending on the current state, the action taken, and the following state, there is always available a Markov strategy which uniformly (nea...

We compared the high-end Intel Xeon processor X5570 (2.93 GHz) with the low-end Intel® Xeon® processor E5504 (2.0 GHz) for two Intel IT computing environments: design and enterprise. In real-world application testing with Intel’s electronic design automation (EDA) workloads, two-socket servers based on the 2.93GHz processor delivered the same performance for an estimated 42 percent lower TCO ov...

The purpose of this paper is to develop a differentiated approach to the cost management tool, Total Cost of Ownership (TCO). Existing TCO related literature has investigated the tool from a focal buyer perspective and has consequently neglected to study TCO from an inter-organisational perspective. Based on empirical data, this paper develops a differentiated approach to the use of TCO consist...