Impact of Permeable Lining of the Wall on the Peristaltic Flow of Herschel Bulkley Fluid

The peristaltic motion is modeled for the Herschel Bulkley fluid, considered to flow in a non-uniform inclined channel. The channel wall is supposed to be lined with a non-erodible porous material. The flow is considered to be moving in a wave frame of reference moving with same velocity as of the sinusoidal wave. Low Reynolds number and long wave length assumptions are made to solve the model. Analytical solution is obtained for the pressure difference and also for the frictional force. Graphs are plotted, using Mathematica software, for both the results of pressure difference and frictional force against time average velocity. We observe that increasing the porous thickening, increases the pressure difference while, it decreases the frictional force. It is seen that the behavior of the pressure difference is opposite to the behavior of the frictional force for all the parameters considered

Mechanical property evaluation of an Al-2024 alloy subjected to HPT processing

An aluminum-copper alloy (Al-2024) was successfully subjected to high-pressure torsion (HPT) up to five turns at room temperature under an applied pressure of 6.0 GPa. The Al-2024 alloy is used as a fuselage structural material in the aerospace sector. Mechanical properties of the HPT-processed Al-2024 alloy were evaluated using the automated ball indentation technique. This test is based on multiple cycles of loading and unloading where a spherical indenter is used. After two and five turns of HPT, the Al-2024 alloy exhibited a UTS value of ~1014 MPa and ~1160 MPa respectively, at the edge of the samples. The microhardness was measured from edges to centers for all HPT samples. These results clearly demonstrate that processing by HPT gives a very significant increase in tensile properties and the microhardness values increase symmetrically from the centers to the edges. Following HPT, TEM examination of the five-turn HPT sample revealed the formation of high-angle grain boundaries and a large dislocation density with a reduced average grain size of ~80 nm. These results also demonstrate that high-pressure torsion is a processing tool for developing nanostructures in the Al-2024 alloy with enhanced mechanical propertie

A CONTROLLED CLINICAL STUDY ON THE EFFECT OF CERTAIN INDIGENOUS DRUGS IN SHAKHASHRITA KAMALA WITH SPECIAL REFERENCE TO VIRAL HEPATITIS-B

Hepatitis-B is an infective disease predominantly affecting liver. Along with AIDS, which has been a major concern since 90s. Many of the Ayurvedic herbal medicines have been tried and have been proved to be effective in treating Shakhashrita kamala. The objective of the study was to see the effect of tablet Nirocil and indigenous drugs Kashaya in Shakhashrita kamala (Hepatitis-B) and to compare both of them. A Total of 26 patients, after considering the inclusion and exclusion criteria, having signs and symptoms of Shakhashrita kamala were included in the study and after diagnosing Hepatitis-B by elevated liver function tests and HBsAg (Elisa). Patients were assessed and scores were given with regards to the subjective parameters like Peetata of netra, Peetata of Mootra, Peetata of Jihwa jala, Swethavarchas, Kandu and objective parameters like total bilirubin, and HBsAg. All the subjective parameters are recorded and assessed on initial day, during and after treatment. Objective parameters are assessed before and after treatment. Out of 26 patients, 10 patients got completely cured, 8 patients got improvement and 8 patients got slight improvement. Overall assessment of the study revealed that, after treatment of 26 patients, there were 8 patients having HBsAg positive result and 18 patients were having HBsAg negative result which was highly significant. Both the groups showed significant positive in subjective parameters. Thus study revealed that indigenous drugs Kashaya has significant role to play in the management of Shaksahashrita kamala. To conclude, the study emphasized that indigenous drugs Kashaya has significant role to play in the management of Shaksahashrita kamala

Ranking Product Aspects Based on Consumer Reviews

The Internet has become an excellent source for gathering consumer?s opinions or reviews. For product numerous consumer reviews of product are available on internet .Consumer reviews or opinions are useful for both firms & users as they contain rich & valuable knowledge about product. The business firm needs different reviews of customers for development of product. The user can make wise purchasing decision by looking at customer reviews. There are reviews on various aspects of the products. The reviews are numerous, diverse and not precise leading to difficulties in information gathering and knowledge acquisition. A product may have hundreds of aspects. Some of the aspects are important than the others. Therefore we are developing the system to mine those aspects and rank them which will help for better product development. This proposed method is named as ?A product aspect ranking framework?. Among reviews of consumer for particular product, it first identifies aspects in the reviews by a shallow dependency parser and then analyzes consumer opinions on these aspects via a sentiment classifier. Then a probabilistic aspect ranking algorithm is used, which effectively exploits the aspect frequency as well as the influence of consumer?s opinions given to each aspect over their overall opinions on the product in a unified probabilistic model

FPGA Implementation of Neural Nets

The field programmable gate array (FPGA) is used to build an artificial neural network in hardware. Architecture for a digital system is devised to execute a feed-forward multilayer neural network. ANN and CNN are very commonly used architectures. Verilog is utilized to describe the designed architecture. For the computation of certain tasks, a neural network's distributed architecture structure makes it potentially efficient. The same features make neural nets suitable for application in VLSI technology. For the hardware of a neural network, a single neuron must be effectively implemented (NN). Reprogrammable computer systems based on FPGAs are useful for hardware implementations of neural networks

FPGA Implementation of Neural Nets

The field programmable gate array (FPGA) is used to build an artificial neural network in hardware. Architecture for a digital system is devised to execute a feed-forward multilayer neural network. ANN and CNN are very commonly used architectures. Verilog is utilized to describe the designed architecture. For the computation of certain tasks, a neural network\u27s distributed architecture structure makes it potentially efficient. The same features make neural nets suitable for application in VLSI technology. For the hardware of a neural network, a single neuron must be effectively implemented (NN). Reprogrammable computer systems based on FPGAs are useful for hardware implementations of neural networks

SENSORIMOTOR CONTROL OF THE KNEE IN MALE AND FEMALE ATHLETES

Evidence suggests that the female predisposition to knee injuries may be related to sensorimotor control (Hewett et al., 2005). The purpose of this study was to compare the quadriceps and hamstrings muscle control strategies of male and female athletes using an established method of testing muscle control (Williams et al., 2003)

The role of computed tomography in the evaluation of cerebrovascular accidents

Background:Cerebrovascular accidents (CVA) or stroke ranks first in frequency and important among all the neurological diseases of adult life. 50% of neurological disorders in a hospital are of this type. It is the third leading cause of death throughout the world. The prolonged morbidity and extended hospitalization required by these patients makes the disease one of the most devastating in medicine. The purpose of the present study was to document the presence or absence of hemorrhage or infarct, to determine the size, location of infarct, reasonably assessing the territory to blood vessels involved and to detect the incidence of negative cases of clinically suspected stroke.Methods:100 cases admitted to KIMS, Hubli and those referred to the NMR scan centre, Hubli with the clinical diagnosis of acute stroke were taken up for the study. The study was done from May 2010 to April 2012.Results:Out of 100 patients clinically suspected of CVA, submitted for CT scan study of the brain, 69 patients had infarcts, 21 patients had hemorrhage, 8 patients had CVT, 1 patient had SAH and 1 patient had normal scans. Infarcts (69%) formed the major group of the CVA cases involving most commonly the LMCA territory in 10 (14.49%) patients. Hemorrhage (21%) formed the second major group of CVA cases involving most commonly the RMCA territory 9 (42.85%) patients.Conclusions:CT scanning is a gold standard technique for the diagnosis and management of stroke and can be ideally done in all cases.The role of computed tomography in the evaluation of                cerebrovascular accident