Recent Patents on Engineering - Volume 1, Issue 3, 2007

Many organizations purchase connectionless Virtual Private Network (VPN) services from a telecommunications service provider, who deploys a network of routers, interconnected by high bandwidth trunks, which serve thousands of customers. The nodes in a service provider network are Provider Edge routers (PEs), which store forwarding tables which dictate on which outgoing link to send an incoming packet addressed t Read More

The explosion of both academic and industrial interest in inorganic/organic hybrid materials and membranes over the past decade primarily arised from their practical and potential applications in such fields as chemical separation, electrochemical sensing, and fuel cells. In view of their significance to the academia and industry, this review gave a brief summary on the recent patents reporting the preparation and applic Read More

This article presents a patent review on recent development of dense ceramic membranes for gas separation and catalytic chemical reaction. After a basic introduction of membrane materials including their composition, structure and property, a short discussion on the correlation between material structure and property as well as strategies for new material development and screening is presented. The main part of this pa Read More

This article reviews dozens of recently published patents, patent applications and journal papers for the recent developments in wire bonding for advanced microelectronics interconnections. The problems or challenges related to popular topics such as low-k devices, ultra-fine-pitch wire bonding, insulated wire bonding, low wire loops and copper wire bonding are briefly explained, and a number of new solutions to the pro Read More

Bioabsorbable polymeric stent has been considered to be a possible remedy for occluded vessels since the long-term complications of bare metal and drug eluting stent have surfaced the water. To make the bioabsorbable polymeric stent a competitive product, polymeric stents must have equivalent mechanical and pharmaceutical functionality to metal ones. Therefore, the bioabsorbable polymeric stents need to have suffi Read More

Over the past 20 - 30 years, there has been a tremendous increase in the number of bone replacement procedures annually, and there now have an estimated total cost of US$140 billion worldwide. The conventional engineering approach of repairing bone fracture is to implant a synthetic metallic prosthesis. However, bone healing often or sometimes fails and this result leads to substantial levels of disability and consequen Read More

This review deals with electrochemical methods for water, wastewater, wastes and soils treatment. The electrochemical technique combines both physical chemistry and electronic science and has widely proved to be a clean, flexible and powerful tool for the development of new methods for waste and water treatment. Likewise, electrochemical treatment is generally characterized by simple equipment, ease of operation, sho Read More

The study of the properties of the materials used in the several fields of the mechanical industry requires an analysis of their mechanical characteristics and behaviour under load, or under a combination of loads, which produce multiaxial stress states on the machine components. The analysis of the behaviour under axial and torsional combined loads, either static or time-variable, proves particularly interesting. During Read More

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