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The output of transducers which are used in physiological measuring is observed to be nonlinear. This nonlinear characteristic of transducers fails to measure the actual value of physiological parameter like temperature, pulse rate, heart beats, etc. the researcher has developed the body temperature measuring transducer using time base oscillating circuit and thermister as temperature sensing element...
In this paper we report humidity sensing studies of undoped and SnO2 doped WO3. Sensitivity is 13.48 MΩ/%RH for WO3-SnO2 nanocomposite. Hysteresis is less than 3% for WO3-SnO2 nanocomposite. Aging for WO3-SnO2 nanocomposite is 5.7%. Activation energy for conduction obtained from Arrhenius graph are 0.127 eV in 27°C to 200°C and 0.547 eV in 200°C to 600°C temperature range . Response time and recovery...
In this paper, we analyze and compare different keeper design topologies for lowering the active mode power consumption, increasing the speed, enhancing the noise immunity and reducing the subthreshold leakage energy of domino logic circuits. This work briefly surveys domino keeper techniques for high fan-in domino circuits. We compared the power, delay, process tracking and VDD tracking of different...
A new circuit technique is proposed in this literature to simultaneously reduce subthreshold leakage as well as gate-oxide leakage in ultra-deep submicron technology, as gate leakage is dominant for ultra thin gate insulating layer (i.e. tox > 20Å). Here we are using the dual threshold voltage technique to reduce the leakage current as well as propagation delay and sleep switches to further reduce...
A circuit technique is proposed in this paper for simultaneously reducing both subthreshold and gate-oxide leakage power consumption at high and low temperatures in footed domino logic circuits. A high Vt pMOS pull-up technique with feedback control utilizing both multiple-Vt and multiple Tox is added between the footer node and dynamic node to place footed domino logic circuit into a low leakage...
Service high availability is becoming a must in various domains. Services provided by applications originally not designed for high availability can be rendered highly available by integrating them with a middleware compliant to the SAForum specification. Such a middleware offers a number of configuration options. The assessment of service availability at the design of the system configuration facilitates...
With advancement in technology, the needs for high performance computing are increasing tremendously. Cluster computing has developed due to the availability of high performance cost effective processors and high speed networks. The long-term trend in High performance computing requires increasing number of nodes in parallel computing platforms. This however entails a higher failure probability. The...
In CMOS circuits, scaling of threshold voltage results in increase of sub-threshold leakage current. According to the International Roadmap of Semiconductor (ITRS), leakage is projected to grow exponentially during the next decade. LECTOR is a technique for designing CMOS gates in order to reduce the leakage current without affecting the dynamic power dissipation. This paper presents the analysis...
The Earth's limited reserves of fossil fuel are a matter of global concern as these are under threat of continuous depletion due to over exploitation. However, these finite reserves are concentrated in certain region of the world and would soon get exhausted. In view of the above problems, the search for alternative fuel has become extensively important. Thus the use of non edible vegetable oil comes...
In any communication system, the emphasis is on estimating the channel response so as to retrieve the transmitted input signal accurately at the receiver's end. Channel Equalisation at the transmitter refers to pre-distorting the input signal so that the effect of the channel is nullified during transmission. This approach works out for slow fading channels where the channel response remains almost...
In current Chip-multiprocessors (CMPs), a significant portion of the die is consumed by the last-level cache. Until recently, the balance of cache and core space has been primarily guided by the needs of single applications. However, as multiple applications or virtual machines (VMs) are consolidated on such a platform, researchers have observed that not all VMs or applications require significant...
We present the design and implementation of Scepter, a system with explicit infrastructure support to reduce energy consumption and improve battery life of mobile devices. Scepter focuses on effective techniques that can reduce the total number of bits transmitted to communicate the same information from a mobile device to a base station. Scepter combines multiple techniques into a single unified...
Wireless losses play a significant role in determining the performance of many higher-layer protocols. Various measurement studies have presented results that explore the many facets of link behaviour. However, the results have often been contradictory. In the first half of the paper, we delve into understanding the underlying causes of losses and resolve two contradictions that appear in literature...
Extraction of features from images has been a goal of researchers since the early days of remote sensing. This paper presents a statistical approach to detect dark curvilinear features due to ocean disturbances caused by wind, movements of surface or underwater objects and oil spill from SAR images. The image is first enhanced to emphasize the dark curvilinear features using a statistical approach...
Tag recommendation is an integral part of any bookmarking application. With the growing popularity in Web 2.0 usage, recommending tags is of utmost importance in enabling a user to perform bookmarking easily. An issue that most recommendation systems do not consider is that users have a tendency to choose from tags that are suggested to them, which might bias the true popular rankings of tags. In...
Flexible manufacturing system (FMS) has been a focal point in manufacturing related research for improving competitiveness. Machine loading problem in FMS is known to be NP-hard problems and its complexity so extensive that even small problems take excessive computational time to reach the optimal solution. Since the problem has been recognized as one of the most important planning problems, it needs...
Scanning of test vectors during testing causes unnecessary and excessive switching in the combinational circuit compared to that in the normal operation. In this paper, we propose a modified design of a scan flip-flop which eliminates the power consumed due to unnecessary switching in the combinational circuit during scan shift, with a little impact on performance. The new scan flip-flop disables...
With the rapid use of the internet into users' daily lives, it is imperative to capture location-specific information from local database to satisfy the user's local information needs [context]. This is especially true in the increasingly local search environments. There are a number of local Web search engines enabling users to find information which is location specific Web content. In this aspect...
The next generation wireless communication system requires a higher standard in order to provide the customers with high quality of services they demanded. Orthogonal Frequency Division Multiplexing (OFDM) is an attractive modulation method and is a strong candidate for the modulation technique of future wireless systems which can be implemented easily. In this paper an effort is made to analyze how...
In this paper a hybrid fuzzy neural approach is proposed for the image compression. The inputs to the network are the preprocessed data of original image, while the outputs are reconstructed image data, which are close to the inputs. This process is similar to a typical function approximation problem which involves determining or learning the input-output relations using numeric input-output data...
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