Suitable alternatives are made for damaged or diseased organs and tissues in tissue engineering by combining cellular and molecular biology with materials and mechanical engineering. Fibrin is a critical blood component responsible for homeostasis, used extensively as a biopolymer scaffold in tissue engineering. This study summarizes the latest developments in organ and tissue regeneration usin...

Background: Water distribution networks (WDNs) are facilities that require massive investment and their optimization is very important. This study aimed to optimization and development of models for promoting WDNs with using engineering judgment. In this method, instead of controlling all system states, it is possible to search the optimal set of options based on engineering judgment and hydra...

The variational iteration method(VIM) was extended to find approximate solutions of fractional chemical engineering equations. The Lagrange multipliers of the VIM were not identified explicitly. In this paper we improve the VIM by using concept of fixed point iteration method. Then this method was implemented for solving system of the time fractional chemical engineering equations. The ob...

Although many methods have been proposed for engineering services and customer solutions, most of these approaches give little consideration to recombinant service innovation. In an age of smart products and smart data, we can, however, expect that many of future service innovations need to be based on adding, transferring, dissociating, and associating existing value propositions. The purpose ...

A philosopher has argued that there can be no such thing as a provably correct system. Some software reliability and safety experts believe that no system can have a software reliability of 1. These claims are related, and they are both mistaken, which we prove with a simple counterexample. But is this the only kind of counterexample? An interesting question arises: which types of systems admit...

Since the seminal eCash paper by Chaum, Fiat and Naor [4], there have been many improvements to the original protocol. However, a protocol constitutes only a single layer of a production system. We examine the feasibility of using some of these new eCash protocols in a more massive system that replaces our current physical cash system. Our examples are taken from the Australian economy, but sho...

Abstract. Clearly defining, maintaining, and exploiting the system vision is a central prerequisite for successful system engineering. We address the question how the visions are concretized and maintained in information systems evolution. Visions are broken down into goals according to constraints imposed by context, and traded off against other goals or habits which exist in this context. Con...

severe hepatic failure accounts for many deaths and raises medical costs each year worldwide. currently, liver transplantation is the most common therapeutic option for patients with end-stage chronic liver disease. due to decrease in the number of organ donors, many in need of transplantation continue to remain on the waiting list. hepatic tissue engineering is a step toward alleviating the ne...

Using models to capture requirements and to initialize operations concepts for new product development has received attention in the Eighth Annual INCOSE Symposium in Vancouver, with the result that the requirements handling process itself is more efficient. The document-driven design methodology is replaced with models that state subsystem-level requirements in executable form. However, most "...