2,121 research outputs found

    Securing Internet Protocol (IP) Storage: A Case Study

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    Storage networking technology has enjoyed strong growth in recent years, but security concerns and threats facing networked data have grown equally fast. Today, there are many potential threats that are targeted at storage networks, including data modification, destruction and theft, DoS attacks, malware, hardware theft and unauthorized access, among others. In order for a Storage Area Network (SAN) to be secure, each of these threats must be individually addressed. In this paper, we present a comparative study by implementing different security methods in IP Storage network.Comment: 10 Pages, IJNGN Journa

    Estimation Of Hct Levels in Tobacco Smokers, Non - Tobacco Smokers, Raw Tobacco Chewers and Its Effects -A Study

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    Aim & Objective: The aim of the study was to to compare and correlate with HCT values levels in blood in all the groups i.e.., smokers, Raw tobacco chewers, passive smokers, controls. Methodology: The Methodology followed for preparing this work is mostly the primary and secondary data. The primary data for the study are collected through OPD Department of TRR Medical College and hospital and Camp patients. We have taken Mission Hb [Haemoglobin Testing system] Meter Instrument was used to estimate Hb and HCT values in patient blood, with a Pricking Finger method free flow blood was collected in a graduated capillary tube and gently blood was transferred on the Hb strip and the reading was noticed and documented. Results: when we compare the study subjects there was a increase in HCT Levels in the smokers and raw tobacco chewers when compared with passive smokers and healthy controls. Conclusion: In this study HCT level of all study subjected.e.,. comparison of HCT % levels between different study subject groups has gradually increased from control vs passive smoker’s vs raw tobacco chewer and higher in smokers showed significant P-Value have showed positive correlation as per annova test. As per our study done with per multiple comparison of hb% levels comparison between different study subject groups by post hoc test –bonferroni method analysis results were mixed and showed significant values

    A CLINICAL STUDY ON THE EFFECT OF VIRECANA KARMA WITH TRIVRUTADI MODAKA IN THE MANAGEMENT OF TAMAKA SVASA (BRONCHIAL ASTHMA)

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    Tamaka svasa is a Vatakaphaja vyadhi, originating from Pittasthana and manifested through Pranavaha Srotas. Vata get obstructed by Kapha dosha and travels into Pratiloma gati (opposite direction) and in turn causes Svasa (Dyspnoea). Its clinical features resembles with Bronchial asthma. Objectives: The study was carried out to assess the role of Virecana karma in the management of Tamaka svasa with Trivrutadi Modaka. Materials and methods: The clinical study was conducted at Dr.B.R.K.R.Govt. Ayurvedic Hospital and Research Centre, Erragadda, Hyderabad. 30 patients of either sex fulfilling the clinical criteria for diagnosis of Tamaka svasa (bronchial asthma) were selected in accordance with following inclusion & exclusion criteria. Murchita Tilataila was given for Snehapana and the Virecana yoga was Trivrutadi Modaka. The result was assessed at every 15 days. Subjective and objective parameters were analyzed before and after the treatment. Results: There was moderate relief in 23 Patients (76.66%), Marked relief in 4 Patients (13.33%) and 3 Patients (10.00%) showed mild relief, Complete remission was not found. Conclusion: Virecana karma (Purgative Therapy) has given maximum effect to pacify the almost entire range of signs and symptoms associated with the disease and by reducing its frequency, severity, emergency drug usage and there by providing quality life to the patients

    A NEW SPEECH ENHANCEMENT TECHNIQUE USING PERCEPTUAL CONSTRAINED SPECTRAL WEIGHTING FACTORS

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    This paper deals with musical noise result from perceptual speech enhancement type algorithms and especially wiener filtering. Although perceptual speech enhancement methods perform better than the non perceptual methods, most of them still return annoying residual musical noise. This is due to the fact that if only noise above the noise masking threshold is filtered then noise below the noise masking threshold can become audible if its maskers are filtered. It can affect the performance of perceptual speech enhancement method that process audible noise only. In order to overcome this drawback here proposed a new speech enhancement technique. It aims to improve the quality of the enhanced speech signal provided by perceptual wiener filtering by controlling the latter via a second filter regarded as a psychoacoustically motivated weighting factor. The simulation results shows that the performance is improved compared to other perceptual speech enhancement method

    Comparative study of scoring systems in ICU and emergency department in predicting mortality of critically ill

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    Background: Scoring systems can be used to define critically ill patients, estimate their prognosis, help in clinical decision making, and guide the allocation of resources and to estimate the quality of care.  It remains unclear whether the additional data needed to compute ICU scores improves mortality prediction for critically ill patients compared to the simpler ED scores.Methods: We have done a prospective observational study of consecutively admitted 400 critically ill patients to ICU directly from Emergency Department in Dr PSIMS and RF over a period of 2 years. Clinical and laboratory data conforming to the modified early warning score (MEWS), rapid emergency medicine score (REMS), acute physiology and chronic health evaluation (APACHE II), and simplified acute physiology score (SAPS II) were recorded for all patients. A comparison was made between ED scoring systems MEWS, REMS and ICU scoring systems APACHE II, SAPSII. The outcome was recorded in two categories: survived and non-survived with a primary end point of 30-day mortality. Discrimination was evaluated using receiver operating characteristic (ROC) curves.Results: The ICU scores outperformed the ED scores with more area under curve values. The predicted mortality percentage of ICU based scoring systems is high compared to emergency scores (predicted mortality % of SAPS II-63%, APACHE II-33.3%, MEWS-18.5%, REMS-14.8%).Conclusions: ICU scores showed more predictive accuracy than ED scores in prognosticating the outcomes in critically ill patients. This difference is seemed more due to complexity of ICU scores

    Token Bucket Algorithm with Modernization Techniques to Avoid Congestion in DEC Protocol of Wsn

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    A wireless sensor system is an essential aspect in many fields. It consists of a great deal of sensor nodes. These sensor networks carry out a number of tasks, including interaction, distribution, recognition, and power supply. Data is transmitted from source to destination and plays an important role. Congestion may occur during data transmission from one node to another and also at cluster head locations. Congestion will arise as a result of either traffic division or resource allocation. Energy will be wasted due to traffic division congestion, which causes packet loss and retransmission of removed packets. As a result, it must be simplified; hence there are a few Wireless sensor networks with various protocols that will handle Congestion Control. The Deterministic Energy Efficient Clustering (DEC) protocol, which is fully based on residual energy and the token bucket method, is being investigated as a way to increase the energy efficiency. In the event of congestion, our proposal provides a way to cope with it and solves it using this method to improve lifespan of the sensor networks. Experiments in simulation show that the proposed strategy can significantly enhance lifetime, energy, throughput, and packet loss

    Congestion Detection and Mitigation Technique for Multi-Hop Communication in WSN

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    The primary function of a network system is to gather information from the observation region and transmit it to the base station. The network life span and congestion are the two major concerns in wireless networks. To enhance the lifespan of the sensor system; multi-hopping has been proved as best in class. Congestion is an important factor to be taken, where multiple nodes forward data to one another in the process of communication. Hence to overcome the issue of congestion in WSN, we proposed a congestion detection and mitigation method along with the multi-hop concept. In this technique, we have considered different routes among communication units that were classified on distance, relative attainment rate (RAR) and node storage occupancy. A utility function (U) has been proposed and calculated using the above illustrated factors for every node that acts as a neighbour to the transmitting node. Neighbour node with highest U-valued will be considered as the packet forwarding node's next hop. In this manner congestion free nodes are selected for data transmission

    Catalytic non-thermal plasma reactor for the decomposition of a mixture of volatile organic compounds

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    The decomposition of mixture of selected volatile organic compounds (VOCs) has been studied in a catalytic non-thermal plasma dielectric barrier discharge reactor. The VOCs mixture consisting n-hexane, cyclo-hexane and p-xylene was chosen for the present study. The decomposition characteristics of mixture of VOCs by the DBD reactor with inner electrode modified with metal oxides of Mn and Co was studied. The results indicated that the order of the removal efficiency of VOCs followed as p-xylene > cyclo-hexane > n-hexane. Among the catalytic study, MnOx/SMF (manganese oxide on sintered metal fibres electrode) shows better performance, probably due to the formation of active oxygen species by in situ decomposition of ozone on the catalyst surface. Water vapour further enhanced the performance due to the in situ formation of OH radicals. [Figure not available: see fulltext.

    Room temperature desorption of Self Assembled Monolayer from Copper surface for low temperature & low pressure thermocompression bonding

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    In this paper the utility of Self Assembled Monolayer (SAM) of Propanethiol (C3) for Copper protection from oxidation and subsequent desorption of the Thiol layer from Copper surface by using cold Helium plasma has been investigated. The major bottleneck of achieving low temperature and low pressure bonding is the presence of contamination and oxidation on the Copper surface. Use of Thiol can protect the freshly deposited Copper surface from oxidation and other contamination. Removal of this Thiol layer by Helium plasma just prior to bonding can bring down the required temperature of bonding to 200° and pressure to 4kN. This technique can open up a whole new platform for low temperature bonding for 3D ICs

    OPTIMAL DESIGN OF EQUIVALENT LINEAR INDUCTION MOTOR BASED ON HARMONY SEARCH ALGORITHM AND ANALYSIS USING FINITE ELEMENT METHOD

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    Linear Induction motors (LIM) are used extensively in industrial applications to develop linear motion, especially in transportation systems. These applications need high efficiency with high power factor. Mainly LIM suffer from two major drawbacks, low power factor and low efficiency. These drawbacks cause highenergy consumption and high input current. In this paper, a novel multi objective Harmony Search optimization algorithm (HSA) is proposed to meet required efficiency and power factor in the design of a Linear Induction Motor. Hence, LIM dimensions can then be optimized by using a HSA in an appropriate objective functions. 2-D Finite Element Method is adopted to analyse the flux density in LIM with the parameters obtained using HSA
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