The role of two oxygen sources, and water vapor, in the initiation KCl-induced high-temperature corrosion was addressed by studying high-alloyed commercial materials at 550 °C. differentiation between sources implemented with 18O-enriched 16O2. Based on results, solid-solid reaction KCl(s) protective oxide alloy surface appeared to be more responsible for than gas-solid KCl(g) oxide. Water invo...

introduction: in the current study, we evaluated the feasibility of body outlining using tc-99m filled flood source for lymphoscintigraphy imaging. methods: 80 patients were included in the study. sentinel node mapping was done using tc-99m antimony sulfide colloid. for outlining the body a tc-99m filled flood source was used which was placed behind or lateral to the patients for anterior and ...

Let (* ) u,, du + q(x, t) u = 0 in D x [0, T], where D c R3 is a bounded domain with a smooth boundary dD, T> d, d: =diam D, q(x, I) E C( [O, 2’1, L”(D)). Suppose that for every (**) ~I,+~=f(x, l)EC’(dDx [0, T]), the value u*,;,:= h(s, t) is known, where N is the outer normal to dD, u solves (* ) and ( ** ) and satisfies the initial conditions u = U, = 0 at I = 0. Then q(x, I) is uniquely deter...

Most of Africa is focused on alleviating poverty and starvation, so IT practice does not enjoy the prominence in Africa. However, developing the IT Industry, and ensuring that practitioners are professional, will provide an industry that can create wealth. After a brief discussion on what is meant by professionalism, this paper will explore the issues relating to IT in Africa, especially South ...

This article is a reflection on significant recent growth in engineering education programs devoted to service-learning, sustainable development, humanitarian engineering, and so on, which we group under the term “engineering to help” (ETH). ETH programs are touted for their ability to provide engineering students, mainly from wealthy nations, with an opportunity to practice small-scale enginee...

Informal rewards, also known as pats on the back, are shown to be extremely effective rewards in some settings, prompting some managers to declare them as more “valuable” to employees than monetary rewards. On the other hand, salary and benefits continue to be the main motivators used by firms, and are clearly not substitutable by pats on the back. We name this puzzling dichotomy “the pat on th...

IMPORTATION AS AN EXCLUSIVE RIGHT ¶1 Making, selling, or using a U.S.-patented product or process in a foreign country does not infringe the United States patent. United States law cannot govern in other countries, and the patentee’s remedy is therefore dependent on the laws of the relevant foreign country. But when the patented product (or the product of the patented process) is brought into t...