The 25Cr-35Ni heat resistant steel has been widely used when resistance to oxidation and creep rapture at elevated temperatures is required. In this paper, the microstructural effect on the weldability of this alloy is investigated. The results of this study indicate that this steel has a perfect weldability in the as cast condition but does not possess good weldability in the aged condition. T...

Implant malposition after breast augmentation surgery remains a common complication. Several surgical options exist to correct the resultant deformity; however, all involve additional risks, costs, and the increased potential for patient dissatisfaction. In my practice, I have developed a nonsurgical therapy using shoelaces, which, when tied and placed in a certain fashion, can correct this def...

This technical report describes E-Cast: a uniform causal-total-order multicast protocol designed to implement fault tolerant, highly elastic, yet strongly consistent database engines in the cloud. In contrast to traditional group communication, the model underlying E-Cast defines multicast as a stateful routing problem. In this document, we provide a rigorous formalization of the routing proble...

In a language with non-parametric or ad-hoc polymorphism, it is possible to determine the identity of a type variable at run time. With this facility, we can write a function to convert a term from one abstract type to another, if the two hidden types are identical. However, the naive implementation of this function requires that the term be destructed and rebuilt. In this paper, we show how to...

Cast iron (CI) is one of the oldest materials in commercial use. It has excellent compressive strength and is commonly used for structures that require this property, as well as for water and sewer lines. This article explains CI metallurgy and why the understanding of this metallurgy is key to understanding other ferrous materials and alloys. The composition of cast iron (CI) varies significan...