Recent Patents on Engineering - Volume 7, Issue 2, 2013

TiO2 nanotubes have recently been studied extensively due to their high surface areas and finite length scales, allowing highly efficiency electron-hole charge separation and reduced recombination. Owing to these properties they can be used for instance in photocatalysis and lithium-ion batteries. The preparation of TiO2 nanotubes through hydrothermal process has received much attention. However, the practical applic Read More

Lipase is an enzyme which catalyzes hydrolysis, esterification and transesterification processes. Type (origin) of lipase affects process conditions and final conversion. Use of these biocatalytic properties of lipase in modification of various vegetable oils is depicted in different patents, leading to varieties of beneficial products. Production and concentration of polyunsaturated fatty acids like eicosapentanoic acid, docosapentan Read More

Pyrolysis is the destructive distillation of the biomass at high temperature in absence of oxygen. Depending upon the heating rate and residence time of vapors during the pyrolysis process, it is classified into slow and fast pyrolysis. Slow pyrolysis generally produces less amount of bio-oil and higher amount of charcoal than fast pyrolysis. This is attributed to the longer residence time for slow pyrolysis. A critical review on this s Read More

This work reviewed the patents related to biobutanol production from biomass, giving the reader an overview of the topic. The main characteristics and trends about biobutanol production were compiled and discussed. It was pointed out that the future production of biobutanol will be driven by the selection of a new microorganism or the development of an engineered strain which will be able to overproduce butanol. In addition Read More

A detailed description of an automated metering reading system development is presented. The project includes visual computing - VSN (Visual Sensor Network), techniques for image treatment implemented at an OCR (Optical Character Recognition) and data treatment through a service-oriented software structure. The elements of image acquisition and treatment are composed of an embedded system which associates Read More

We modeled an ultra wide band (UWB) transmitter system composed of a seventh derivative Gaussian pulse generator and a Vivaldi antenna through the study of recent patents correlated to this system. The system consists of a fifth derivative Gaussian pulse generator (PG) combined with a RLC circuit to generate a seventh derivative Gaussian pulse. The circuit is designed using 180nm CMOS Mosis-IBM process. Spice Read More

In today’s world, the prevalence of insulin dependent patients is increasing worldwide. In light of advancing in technology at biomedical science, the new approach and methods in recent years show the potential to solve the problems. In addition, advances in biomedical instruments have led to new opportunities such as real time patient tracking for mobile healthcare purposes. In this sense, wireless tracking of diabetic patients i Read More