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Over the past one decade, the Indian Aviation sector has moved from being a closed, poorly managed and excessively regulated industry to a more open, liberalized and investor friendly sector. The growth in this sector has been threatened inter alia by a lot of challenges such as high fares, high operational costs, global slowdown and security and law and order issues. According to the estimates of Centre for Asia Pacific Aviation (CAPA) by 2020, Indian Airports in all probability be able to serve over 100 million passengers every year. The figures revealed by the Ministry of Civil Aviation also indicate that the number of International passengers are expected to increase to 50 million. In such a scenario, it is important to maintain a fool proof security paraphernalia which is capable of adequately dealing with the rapidly changing techniques adopted by the terrorists groups. The security mechanism in the aviation sector needs a reconditioning to bring it in tune with the constantly evolving terror issues. The Aircrafts Act has become obsolete, it does not contain any special provisions with regard to the security of the Aircrafts, it is often felt that a comprehensive legislation pertaining to Civil Aviation Security is required for setting up a legal framework to inter alia provide for deterrent punishment for such offences, a specially trained task force for dealing with such contingencies and a summary disposal of such cases. The paper makes a humble attempt to suggest the procedural and legislative changes in the light of the civil aviation security laws of the other nations. A critical analysis of the current law has been done to show the various anomalies present therein. It is the objective of this paper to suggest a reconciliation between the interests of the passengers and the security of the state.

Electric distribution sub-stations have an important role in energy distribution management. The sub-stations transfer energy from 400V to 20000V in centre of consumption. More decision in utilizing of this sub-station is basically assert on one attribute and most of time some important aspects may be forget. In this paper, the analysis is done by using Analytical Heirachy Process (AHP) method (taking four basic attributes involving Load forecast, Land availability, Cost of land and closeness to load centre) for selecting the best suitable location for placement of sub-station so, an example of a place Greater NOIDA, India, is taken which will grow into metropolis by 2021 as presented in a survey. The place comprises all the major power consuming sectors viz. residential, commercial and industrial. As in this study, the intention is to optimize the position of sub-station for construction of a new sub-station. As to conclude of this study the decision will help the electric managers and designers to be able to get multi aspects of decision making and improve the design, locations and grid reconstruction of the distribution sub-stations.

We consider a singular Sturm-Liouville differential expression with an indefinite weigh and present a sufficient condition for similarity of indefinite Sturm-Liouville operators to self- adjoint operators. Using this result, we construct a example of operator and prove that it is similar to a self-adjoint one.

Reduction in the number of component is a live problem in the domain of power electronics, as it is directly leads to reliability implication. Further reduction in active switches in the inverter topology is also beneficial for the cost factor point of view. In view of this, the present paper reports a novel inverter topology based on only four active switches as against the six switches topology widely reported in the literature. The said design is verified using PSIM software. The result shows good resemblance between our proposed four switches topology and conventional six switches topology.

A single feed circularly polarized c-shaped and circular patch antenna with improved axial ratio bandwidth is presented. In this article, both c-shaped slots and circular patch antenna were designed and by using the concept of switches like PIN diodes the circular polarization have been obtained. In this article the circular polarization was achieved by creating some asymmetry in the structure of an antenna. The performance characteristics of an antenna were explained in terms of its return loss characteristics and elevation radiation pattern of gain by using IE3D simulator.

The concentration and distribution of heavy metals (Cd, Pb, Cr, As, Ni, Zn, Fe and Cu) lead, in soils of Warri and environs were examined using Atomic Absorption Spectrophotometer, in the rainy and dry seasons. A total of forty-eight soil samples were collected from parks, commercial areas, main roadside, from residential areas, and from industrial areas, as well as from control sites. The range of mean heavy metal concentrations during the rainy season were: Pb: >0.01 – 0.21mg/kg, Cd: >0.01 – 0.01, Cr: >0.01 - 2.61, As: >0.01, Ni: >0.01 – 0.17, Cu: >0.01 – 7.21, Fe: 0.44 – 1348.66, and Zn: >0.01 – 21.12. The range of mean heavy metal concentrations during the dry season were: Pb: >0.01 – 1.11mg/kg, Cd: >0.01 – 5.92, Cr: >0.05 – 6.12, As: 0.001- 0.01, Ni: >0.01 – 0.34, Cu: >0.01 – 8.12, Fe: 0.87 – 1451.02, and Zn: >0.01 – 19.58.The mean concentrations of heavy metals obtained in all the soil samples in the study area showed an increasing order of As>Cd>Pb>Ni>Cr>Zn>Cu>Fe in both rainy and dry season. The concentrations of heavy metals studied in soil of all sites in dry season were slightly higher than those in the rainy season. Hierarchical cluster analysis (HCA) was employed in order to further ascertain the sources of heavy metal in soils of the study area, and it revealed that the heavy metals in all the sampled media had a common origin and were associated with anthropogenic activities in the study area. Pearson’s correlation of heavy metals in the samples showed strong relationships among metals suggesting a similar distribution pattern and a combination of natural and anthropogenic sources. Spatial distribution maps of the study area showed that patterns of heavy metals were associated with several factors which include industrial activities such as gas flaring, high traffic density, and the geology of the study area. While measured concentrations are within international limits, there is cause for concern since metal concentrations in the sediment and surface water samples were elevated near some indusrial areas. Therefore, regular monitoring of the soils is essential to prevent excessive build-up of the toxic heavy metals in the soils and water resources of the study area.

This research work deals with analysis of simply supported rectangular plate under two different types of loading viz. centrally applied point load and uniformly distributed load (UDL). Four different sizes of plates were considered depending on the shape of material that allowed in the experiments. These plates were assumed to be constructed by isotropic material and subjected to point loading & UDL. The plates were supported under standard simply supported conditions at the two ends (left & right end views from the operator) so that the moment singularity is assumed at the tip of internal line support. Plate deflections were measured for all the plates under different loading conditions. These values were then validated using the ANSYS software. The results then compared and error was found out. The physical quantities of the plates and the extent of contact related to the level of loading in the case of free contact are provided in the present work.

Tooth wear or tooth surface loss is a term used to define surface loss of dental hard tissues from causes other than developmental ones, dental caries and trauma 1. Often tooth wear is always presented with myriads of clinical presentation such as erosion, attrition, abrasion and abfraction. It is crucial to understand the definition of each tooth wear aetiology and identify them during clinical examination. As this will affect the clinical management of the patients and their treatment outcome later. In the present article, the focus is placed on dental erosion in bulimic patient. Dental erosion is the irreversible loss of dental hard tissue caused by chemical process of acid dissolution but not involving bacterial plaque acid, and not directly associated with mechanical and traumatic factors, or even dental caries. 

Graviola, Annona Muricata, leaves is known for its efficacy in the treatment and management of complex disorders in man. Most research work available however targets on their organic contents, viz. essential oils, glycosides, vitamins, alkaloids and other active components. This research work aimed at investigating their elemental composition which is most often overlooked, though they play important roles in the fight against diseases. In order to determine the presence of these elements, even at trace levels, and to minimize chemical contamination during sample preparation, the sensitive analytical technique (which is free from the use of chemicals), instrumental neutron activation analysis (INAA) was used. Potassium, Ca, Cl, Mg, Fe, Na, Br, Mn, Cu, Cr and Co were present in the leaves at detectable concentrations. The concentrations of the elements Cu, Fe and Mn were found to be below their tolerable upper intake levels. The presence of these elements in the leaves of Annona Muricata indicates its potential for use in medicinal preparations for the management and treatment of certain diseases.

The main propose of this research is the analyses of value added rule as an intellectual index on the financial ,economical and stock market performance of corporations .at this research the effect of value added (intellectual capital and used capital)on the financial ,economical and stock market of corporation in Tehran exchange commission through the 2006 until 2012with the method of regression has survived .results show that the coefficient of intellectual capital value added is effective at corporation performance .although among the coefficient of intellectual capital and financial and economical performance is meaningful relationship .but there is not meaningful relation among used capital corporation performance .that is arising from not being relation among value added coefficient and financial ,economical and market performance of corporations .So we can conclude that intellectual capital value added in comparison with used capital value added has more and important effect on corporation performance especially at financial and economical performance.