a laboratory stirred tank bioreactor with six single and dual-impeller configurations was tested to obtain the optimum operating conditions for future biological processes. six impeller combinations consisting of three basic impeller types, namely rushton turbine (rt), pitched 4blade (p4b) and pitched 2blade (p2b) downward flow were investigated in 1.77 l bioreactor working volume. power consum...

The interest in low-cost and small size video surveillance systems able to collaborate in a network has been increasing over the last years. Thanks to the progress in low-power design, research has greatly reduced the size and the power consumption of such distributed embedded systems providing flexibility, quick deployment and allowing the implementation of effective vision algorithms performi...

This paper highlights a comparative analysis of eight diverse techniques for 2 to 1 multiplexer implementation. The functionality is identical but significant differences in dynamic power consumption and propagation delay are observed. aims enable the designer pick out best fit structure specific application keeping with their design requirement. multiplexers designed at 90 nm technology node s...

scaling challenges and limitations of conventional silicon transistors have led the designers to apply novel nano-technologies. one of the most promising and possible nano-technologies is cnt (carbon nanotube) based transistors. cnfet have emerged as the more practicable and promising alternative device compared to the other nanotechnologies.  this technology has higher efficiency compared to t...

In this paper, we present an efficient low power scan test technique which simultaneously reduces both average and peak power consumption. The selective scan chain activation scheme removes unnecessary scan chain utilization during the scan shift and capture operations. Statistical scan cell reordering enables efficient scan chain removal. The experimental results demonstrated that the proposed...

Power consumption plays an essential role in VLSI design. Earlier, the VLSI designers were more concentrated on performance and area, but, gradually, low power consumption became one of the most important factors in VLSI design. Increasing demand and growth of portable devices have increased the demand of power efficient VLSI circuits. In this paper, various conventional low power designs are a...

In modern processors, a cache system becomes the main contributor of the total power consumption as it greatly improves the performance. Most of the power consumption is caused by its complex architecture, very frequent access and progressively increased size. This thesis presents three techniques in a cache system in order to reduce both power consumption and access latency. We also propose a ...

Due to limited battery capacity, electronics in biomedical devices require low power consumption. On the other hand, biomedical devices that integrate multiple functions like sensing, amplification, signal conditioning, signal processing, data storage, etc. have put a greater constraint on power consumption for each functional unit. This paper presents a low power design of a decimator for a si...