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Design of Next Generation Auto Theft Prevention System
T. Senthil kumar, K. Praveen
International Journal of Scientific Engineering and Technology , 2013,
Abstract: This paper introduces an design of next generation auto theft prevention system. As vehicles become more sophisticated, vehicle security systems must be stronger than ever before. A modern vehicle utilizes remote keyless entry system and immobilizer system as the main weaponry against vehicle theft.Project proposed here aims to design a next generation auto theft prevention system by adding significant enhancements and modernizing the existing system and thus try to overcome the drawbacks. There is a long list of features implemented in this project smart gravitational lock, cryptographic keyless entry, touch screen ignition, etc., The features are implemented with the help of 3-axis MEMS Accelerometer, 3-axis MEMS Magnetometer, IEEE 802.15.4 wireless networking protocol, TFT display, GPS Receiver, GSM cellular modem.
PHYTO-CHEMICAL AND PHARMACOLOGICAL PROFILES OF CLERODENDRUM SERRATUM LINN. (BHARNGI): A REVIEW
Praveen Kumar A.,K. Nishteswar
International Journal of Research in Ayurveda and Pharmacy , 2013, DOI: 10.7897/2277-4343.04239
Abstract: Bharngi is one of the drugs of Ayurvedic meteria medica which is mainly indicated in the respiratory disorders. One the botanical sources of Bharngi is Clerodendrum serratum Linn. another species Pygmaeopremna herbacea is being in use for Bharngi. Clerodendrum serratum Linn. (Family: Verbenaceae) is very widely distributed in tropical and subtropical regions of the world. In Ayurveda it is used to cure various disorders like shwasa (breathlessness), kasa (cough), vrana (wound), shotha (swelling) and many vataja disorders (neurological disorders). Some of the chief constituents found in the plant are D-mannitol, hispidulin, cleroflavone, apigenin, scutellarein, serratagenic acid, acteoside, verbascoside, oleanolic acid, clerodermic acid, γ-sitosterol, β-sitosterol, cholestanol, clerosterol, campesterol and 24-ethyl cholesterol etc. C. serratum is used as an anti-oxidant, anti-bacterial, anti- carcinogenic, hepatoprotective, wound healing, anti-allergic etc. Besides these activities the bronchodilator activity of this herbal plant has also been reported in its leaves.
Preliminary Phytochemical, antimicrobial and toxicity studies on Clerodendrum paniculatum Linn leaves
Praveen.M,Radha K*,Ajith Kumar
Hygeia : Journal for Drugs and Medicines , 2012,
Abstract: Plan: The present study was undertaken for investigating and scientifically validating the traditional claims of Clerodendrum paniculatum Linn for its therapeutic activity.Methodology: Phytochemical screening demonstrated the presence of carbohydrates, glycosides, and tannins and Phenolic compounds in methanolic and aqueous extracts and sterols in all the extracts used. The brine shrimp toxicity assay was carried out on Petroleum ether, Chloroform, Ethyl acetate, Methanol and aqueous extracts using standard procedure. Brine shrimp assay (BSA) test showed LC50 of 400, 1600, 1700, and 1700 μg for the Petroleum ether, Chloroform, Ethyl acetate, Methanol extracts respectively. The degree of lethality was found to be directly proportional to the concentration of the extract. Maximum mortality rate of 100% was observed in the petroleum ether extract at 1600μg/ml while least mortality was observed in methanolic extract of 100 and 200μg/ml and 10% at 400 and 800μg/ml Outcome: In summary petroleum ether extract has the highest mortality rate than compared to methanolic extract. The methanolic and chloroform extracts of the leaves of C.paniculatum showed effective antimicrobial activity against Staphylococcus aureus, Pseudomonas aeruginosa and Candida albicans.
Comparative Analysis of Linear and Nonlinear Pattern Synthesis of Hemispherical Antenna Array Using Adaptive Evolutionary Techniques
K. R. Subhashini,A. T. Praveen Kumar
International Journal of Antennas and Propagation , 2014, DOI: 10.1155/2014/987140
Abstract: Hemispherical antenna arrays are subjected to linear and nonlinear synthesis and are optimized using adaptive based differential evolution (ADE) and fire fly (AFA) algorithm. The hemispherical shaped array with isotropic elements is considered. Antenna element parameters that are used for synthesis are excitation amplitude and angular position. Linear synthesis is termed as the variation in the element excitation amplitude and nonlinear synthesis is process of variation in element angular position. Both ADE and AFA are a high-performance stochastic evolutionary algorithm used to solve -dimensional problems. These methods are used to determine a set of parameters of antenna elements that provide the desired radiation pattern. The effectiveness of the algorithms for the design of conformal antenna array is shown by means of numerical results. Comparison with other methods is made whenever possible. The results reveal that nonlinear synthesis, aided by the discussed techniques, provides considerable enhancements compared to linear synthesis. 1. Introduction Design of antenna arrays that conforms an arbitrary shape has triggered the electromagnetic researchers since they have a potential of coverage, either with an omnidirectional beam, multiple beams, or a narrow beam that can be steered over . One of the geometrical solutions that can be provided through a hemispherical shape. The linear arrays have good directivity and they can form the narrowest main lobe in a given direction but cannot be steered in all azimuth directions. The circular array is a high side lobe geometry. The lacuna of the regular arrays leads to the aid of arrays that can perform/radiate in azimuth range also [1]. These arrays have to be mathematically formulated for their array factor. Since the array elements are conformal to the surface of the sphere, the phase at each element becomes critical for synthesizing low side lobe patterns [2, 3]. Primitive methods such as Schelkunoff, Fourier, and Woodwardlawson cannot be applied for this hemispherical array because of its curvature effects; the phase adjustments of each array element become complex. The stochastic pattern synthesis [4–7] can be adopted for these conformal shapes. The literature instructs the advantages of stochastic process over deterministic methods that can be stretched out for large size arrays [8–11]. One of the greatest advantages of using these evolutionary techniques such as Genetic Algorithm and Particle Swarm optimization [12–14] is their ability to deal with a huge parameter set up with out getting trapped in
Selection of Multi-Cloud Storage Using Cost Based Approach
Sai Kiran M,Gowtham Kumar Neredumilli,Praveen Kumar Rao K
International Journal of Computer & Electronics Research , 2013,
Abstract: Companies are often challenged to increase the functionality of IT while minimizing capital expenditures. Cloud providers operated on proprietary closed architectures that make migration a headache. In this paper we present a Cost based approach for selecting Multi-Cloud Storage. We found that our model fits the practical requirements and supports decision making in Cloud Computing. In this work we observed that, from customer’s point of view relying upon a solo service provider for his outsourced data is not very promising, so we propose a Cost Based Approach model in cloud computing which holds an economical distribution of data among the available service providers in the market to provide customers with data availability.
Accuracy of WHO Verbal Autopsy Tool in Determining Major Causes of Neonatal Deaths in India
Arun K. Aggarwal, Praveen Kumar, Sadbhawna Pandit, Rajesh Kumar
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0054865
Abstract: Objectives This study was conducted to evaluate the performance of World Health Organisation (WHO) verbal autopsy tool in determining major causes of neonatal deaths. Methods From a tertiary care hospital and a government multispecialty hospital, the attending paediatricians ascertained a clinical cause of death for 371 neonatal deaths. Trained field workers conducted verbal autopsy (VA) interviews. Two independent paediatricians, who had no access to the clinical information, assigned cause of death as per verbal autopsy. Analysis was based on 313 cases in which both clinical diagnosis and VA diagnosis was obtained. Findings As per the clinical diagnosis, four most common causes of neonatal deaths were sepsis (29.1%), preterm birth (27.8%), birth asphyxia (27.2%), and congenital anomalies (11.5%). Cause specific mortality fractions by VA diagnosis were statistically similar to those obtained by clinical diagnosis except for birth asphyxia (16.3%). Diagnostic accuracy of verbal autopsy diagnosis against clinical diagnosis ranged from 78% to 92% in ascertaining different underlying causes of death. Area under the Receiver-Operator Characteristics curve (95% confidence interval) was 0.75 (0.69–0.80) for sepsis, 0.74 (0.68–0.80) for preterm birth, 0.73 (0.65–0.82) for congenital anomaly and 0.70 (0.64–0.75) for birth asphyxia. Kappa for all four causes was moderate (0.46–0.55). Interpretation The WHO verbal autopsy tools can provide reasonably good estimates of predominant causes of neonatal deaths in countries where neonatal mortality is high. Caution is required to interpret cause specific mortality fraction (CSMF) for birth asphyxia by VA because it is likely to be an underestimate.
A Survey on Target Tracking Techniques in Wireless Sensor Networks
K. Ramya,K. Praveen Kumar,V. Srinivas Rao
International Journal of Computer Science and Engineering Survey , 2012,
Abstract: Target Tracking as it moves through a sensor network has become an increasingly important application in Wireless Sensor Networks. This paper examines some of the target tracking techniques in use today. An analysis of each technique is presented along with it advantages, problems and possible improvements. There are seven main categories explored in this paper. The survey promotes overview of recent research literature along with their performance comparison and evaluation.
Neurodegenerative changes in different regions of brain, spinal cord and sciatic nerve of rats treated with sodium fluoride
P. Yugandhar Reddy,K. Pratap Reddy,K. Praveen Kumar
Journal of Medical and Allied Sciences , 2011,
Abstract: Fluoride is known to cross the blood-brain barrier and alter the structure and function of neural tissue. There are few authoritative reports on neurodegenerative changes in hippocampus, neocortex, cerebellum, spinal cord and sciatic nerve in fluoride intoxication. We report the alterations in the structure of neuronal tissue after chronic administration of sodium fluoride (for 60days) to rats. Twelve male Wistar rats were divided equally into two groups: one group received 20 ppm of sodium fluoride (NaF) and the other group (which served as a control) received tap water for 60days.The body weights and organic somatic index of brain in the sodium fluoride treated animals were significantly reduced, relative to the control group. Tissue fluoride levels of hippocampus, neocortex, cerebellum, spinal cord and sciatic nerve, all increased significantly in fluoride treated rats. Electron microscopy of the hippocampus, neocortex, cerebellum, spinal cord and sciatic nerve showed neurodegenerative changes in the NaF treated group compared to controls. Axon deterioration, myelin sheath degeneration and dark cells with scanty cytoplasm were observed in spinal cord and sciatic nerve in the treated group. Other distinctive morphological alterations observed were: vacuolated swollen mitochondria in neocortex, hippocampus and cerebellum; myelinated fibers with breaks in continuity (axon partly preserved and partly vacuolated) in hippocampus; myelin splitting and vacuolated schwann cell within the cerebellum and sciatic nerve respectively. Thus, neurodegeneration was clearly evident in the hippocampus, neocortex, cerebellum, spinal cord and sciatic nerve on fluoride exposure.
Chaotic Properties on Time Varying Map and Its Set Valued Extension  [PDF]
Ayub Khan, Praveen Kumar
Advances in Pure Mathematics (APM) , 2013, DOI: 10.4236/apm.2013.33051
Abstract: Every autonomous dynamical system X, finduces a set-valued dynamical system \"\"on the space of compact subsets of X. In this paper we have investigated some chaotic relations between a nonautonomous dynamical system and its set valued extension.
A Novel Argument to Use 8-BIT Media Processor for Low Power VLSI Design
P. Karthigai Kumar,K. Baskaran,C. Praveen Babu
Lecture Notes in Engineering and Computer Science , 2008,
Abstract:
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