544 research outputs found

    Estimating Node Density and Achieving Energy Efficient In Wireless Sensor Networks

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    In Wireless Sensor Networks, energy consumption is an important issue compared with other parameter. Minimum Energy consumption is achieved by the duty cycle in the network. The concept of a low duty cycle is representing as a periodic wake-up scheme. If the nodes residual energy is higher than the threshold value the node act as a parent node and it creates the leaf node during the transmission finally forwards the packets based on the energy level in the node. If the nodes residual energy is lower than the threshold value the node act as a child node, which is, enter the sleep mode. After finishing the sleep period it will wake up and check the channel if any transmission is there. If packet is to be transmitting or receiving, the nodes forward the packet otherwise again go to the sleep state. In AODV, protocol has the highest energy consumption than the Modified Energy AODV protocol. However, this concept is applicable only in small network. Simulation results show that Modified Energy AODV provides better performance in terms of energy, packet delivery ratio and throughput

    Percolative shunting on electrified surface

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    The surface discharge of electrified dielectrics at high humidity is considered. The percolative nature of charge transport in electrets is established. Particular attention is given to the phenomena of adsorption and nucleation of electrically conducting phase in the cause of percolation cluster growth on electrified surface. The critical index of the correlation lenght for percolation cluster is found, and its value is in good agreement with the known theoretical estimations.Comment: 4 pages with 1 figure, revtex, published in Tech. Phys. Lett. 25 (1999) 877-879 with one additional figur

    IoT Based Industrial Production Monitoring System Using Wireless Sensor Networks

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    The objective of the work is to monitoring the production lines in industry using wireless sensor networks. This work presents the benefits of an automated data collection and display system for production lines. It involves wireless sensor networks for monitoring the productions in industry. Condition monitoring reduces human inspection requirements through automated monitoring, reduces maintenance through detecting faults before they escalate and improves safety and reliability. This work can monitor productions using temperature, voltage and current sensors with support of microcontroller. The relay is acts like a switch to monitor the production lines. In this work, Global System for Mobile communication technique is used to transferring the collected data. The collection of data, it is transferred into computerize spreadsheet in the remote office by authorized personnel for reporting purpose. The system will generate an automated report which stays in place and the management only needs to act base on the results. This work is cost effective automatic data collection is the alternative to manual data collection. It significantly improves the accuracy of the valuable reports for the management. It also reduces the time for identifying the fault using this techniqu

    DeMalFier: Detection of Malicious web pages using an effective classifier

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    The web has become an indispensable global platform that glues together daily communication, sharing, trading, collaboration and service delivery. Web users often store and manage critical information that attracts cybercriminals who misuse the web and the internet to exploit vulnerabilities for illegitimate benefits. Malicious web pages are transpiring threatening issue over the internet becaus

    DETERMINATION OF CHROMATOGRAPHIC ASSAY AND VALIDATION OF OFLOXACIN IN BULK AND PHARMACEUTICAL DOSAGE FORM

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    Objective: The objective of the study is simple, sensitive; eco-friendly reverse phase chromatographic method has been developed and validated for the quantitative determination of ofloxacin in bulk and marketed formulation. Method: The developed method was done using Hypersil silica C18 (250 mm × 4.6 mm, 5 μ particle size) as column and the mobile phase is containing water and methanol in the ratio of (10:90) vol/vol. The mobile phase pass at 1 ml/min flow rate and the eluted solution is measured at 270 nm using a PDA detector. Results: The assay method is linear from the concentration range of 5–30 μg/ml. The corelation coefficient is 0.9998. The mean percentage recovery for the developed method is found to be in the range of 98.4–100.6%. The developed method complies robustness studies. Conclusion: The validation of the developed method was done by as per the ICH guidelines. It obeys the linearity, accuracy, precision, and robustness studies. Validation parameters are within the limitations. The results of the developed process indicated the reverse phase chromatographic method is simple, accurate as well as precise, rapid and eco-friendly method for routine analysis of ofloxacin in bulk and its pharmaceutical dosage form

    Adsorption of Multi-block and Random Copolymer on a Solid Surface: Critical Behavior and Phase Diagram

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    The adsorption of a single multi-block ABAB-copolymer on a solid planar substrate is investigated by means of computer simulations and scaling analysis. It is shown that the problem can be mapped onto an effective homopolymer adsorption problem. In particular we discuss how the critical adsorption energy and the fraction of adsorbed monomers depend on the block length MM of sticking monomers AA, and on the total length NN of the polymer chains. Also the adsorption of the random copolymers is considered and found to be well described within the framework of the annealed approximation. For a better test of our theoretical prediction, two different Monte Carlo (MC) simulation methods were employed: a) off-lattice dynamic bead-spring model, based on the standard Metropolis algorithm (MA), and b) coarse-grained lattice model using the Pruned-enriched Rosenbluth method (PERM) which enables tests for very long chains. The findings of both methods are fully consistent and in good agreement with theoretical predictions.Comment: 27 pages, 12 figure

    PROSPECTIVE STUDY TO COMPARE INSULIN AND INSULIN ANALOGS IN TYPE II DIABETIC PATIENTS

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    Objective: To compare the safety and quality of life of insulin and insulin analogues in Type II Diabetic patients.Methods: 100 patients who are diagnosed with type – II diabetes milletus are taken.In these 50 patients are of insulin analogues and 50 patients are of conventional insulin The safety was based on number of hypoglycemic events.Data was collected by using the EQ-5D questionnaire and EQ Visual Analogue scale (EQ-VAS) to assess the quality of life from the patient.Result:The percentage of the patients who had hypoglycemic events in conventional insulin group is 54% (n=27) and insulin analogues group is 20% (n=10). Mean score points of QOL obtained by conventional insulin patients is 75.9 and by insulin analogues patients is 93.75Conclusion: Insulin analogues group has low risk of hypoglycaemia when compared with the conventional insulin.The patient group who are in No problem category are found to have better QOL. The safety and QOL statistical differences constitute less likely among insulin and insulin analogues. The use of insulin analogues will continue to advance our efforts at improving diabetes care and treated related adverse outcomes can be reduced

    Two-Component Fluid Membranes Near Repulsive Walls: Linearized Hydrodynamics of Equilibrium and Non-equilibrium States

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    We study the linearized hydrodynamics of a two-component fluid membrane near a repulsive wall, via a model which incorporates curvature- concentration coupling as well as hydrodynamic interactions. This model is a simplified version of a recently proposed one [J.-B. Manneville et al. Phys. Rev. E, 64, 021908 (2001)] for non-equilibrium force-centres embedded in fluid membranes, such as light-activated bacteriorhodopsin pumps incorporated in phospholipid (EPC) bilayers. The pump/membrane system is modeled as an impermeable, two-component bilayer fluid membrane in the presence of an ambient solvent, in which one component, representing active pumps, is described in terms of force dipoles displaced with respect to the bilayer midpoint. We first discuss the case in which such pumps are rendered inactive, computing the mode structure in the bulk as well as the modification of hydrodynamic properties by the presence of a nearby wall. We then discuss the fluctuations and mode structure in steady state of active two-component membranes near a repulsive wall. We find that proximity to the wall smoothens membrane height fluctuations in the stable regime, resulting in a logarithmic scaling of the roughness even for initially tensionless membranes. This explicitly non-equilibrium result, a consequence of the incorporation of curvature-concentration coupling in our treatment, also indicates that earlier scaling arguments which obtained an increase in the roughness of active membranes near repulsive walls may need to be reevaluated.Comment: 39 page Latex file, 3 encapsulated Postscript figure

    Natural Dyeing Using Bauhinia Purprea Flower on Selected Fabrics

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    The dyeing process for textiles has been practiced by humans since ancient times. There's been a great deal of focus on in the recent past on the process of natural dyeing because of the awareness of textiles that are eco-friendly and sustainable. As people's awareness of their own health increases, so do their demands that textile products be produced using dyes that are sustainable and friendly to the environment and dyeing techniques. On that basis, the eco-friendly natural dye was produced from the abundantly available "Bauhinia purpurea" flower in the current study. In this study, 100% silk woven fabric, 100% cotton woven fabric, and 100% cotton knitted fabric were used for dyeing (Bauhinia purpurea), and a color fastness test was carried out for all three samples. From the result, it was concluded that, among the three samples, the 100% silk woven fabric was the best due to its good color fastness test and dye absorbency

    PERFORMANCE COMPARISON ON MEDICAL IMAGE SEGMENTATION ALGORITHMS

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    Image segmentation plays a crucial role in many medical-imaging applications, by automating or facilitating the delineation of anatomical structures and other regions of interest. In this paper explaining current segmentation approaches in medical image segmentation and then reviewed with an emphasis on the advantages and disadvantages of these methods and showing the implemented outcomes of the thresholding, clustering
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