IMPACT : International Journal of Research in Engineering & Technology

9-14

Authors: MADHUSUDHANAN. R& DIVYA SUBRAMANIYAN

“Personal Assistant “ the word itself means assistant working exclusively for one particular person. The major purpose of any automation system or artificial system is to reduce human labour, effort, time and errors due to his/her nelligence. The major goal of this project is to design and implement a Personal Assistant and Intelligent Home Assistant in a same device (via world –wide-web) or even any mode of Internet-Access, which gives the ability to control your home appliances and to perform task or service for an individual. These tasks or may be services are based on user input, on location and also the ability to access information from variety of online sources. Various sensor based control for this application is being added to improve the security and also the ability to make more accurate decisions.

21-26

Authors: SANDEEP SINGH, LAKHWINDER PAL SINGH & GURUDUTT SAHNI

In the modern period, there a requirement for casting units & foundry to deliver components with less rejection rate i.e. short lead time. The gating framework is assuming essential part in the field of quality. So optimization of gating framework in metal casting delivers the error free components. The principle motivation behind optimization of gating framework is expanding yield of cast items & overcome the defects like shrinkage, gas porosity, slag, inclusion, etc. Many researchers has been studied on optimization of gating system on the basis of Taguchi method, Numerical Simulation, Mold flow Software, Gradient Search Method, Genetic algorithm technique and so forth to diminish the defects. The target of this paper that improper design of gating framework and riser system result in internal shrinkage which is a major defect in cast product. So good design of gating system reduces defects and increase yield.

37-50

Authors: IKPOR ISAAC MONDAY & AGHA NANCY

The main objective of this study is to analyze the determinants of voluntary disclosure quality among listed firms in emerging economy. Unweighted voluntary disclosure quality index was used as the dependent variable, while firm disclosure quality determinants such as size, profitability, Board Composition and Gearing constitute the independent variables. Ex-post facto research method was employed as the research design. Data was sourced from 793 corporate annual reports of firms listed in the Nigeria stock exchange between 2000 to 2014.Two models; one based on the combined sample and the other on the non-financial companies only were developed. Generalized Method of Moment (GMM) regression techniques is used to test the statistical significance of the hypotheses of the study. Using the reduced model and full model, the results indicate that firm size and Board Composition has significant and positive relationship with voluntary disclosure quality. On the other hand, profitability and gearing were found to be significant and negatively related to the voluntary disclosure quality of listed firms in Nigeria. The implication of these findings is that large firm discloses more extensive information than do small firms. Moreover, highly profitable firms in Nigeria tend to disclose less information to avoid political attention in the form of pressure for the exercise of social responsibility and greater regulations such as price control and higher corporate taxes. Moreover, high number of non-executive independent directors on the board promotes extensive disclosure than do firms with less number of non-executive independent directors and finally, firms with more debt in their capital structure tend to provide less information to gain access to the capital markets and to reassure investors of the possibility of continuous going concern by the firms

65-76

Authors: SHARANJEET SINGH, AMARDEEP SINGH & SHRUTI

Whenever we talk about secret information, then in that case confidentiality plays a vital role in between communicating parties. Cryptography and Stegnography are the two main pillars of information security. Cryptography is used just to scramble the information by apply various algorithm e.g Deffie - Hellmen etc, but it is able to reveal secret information: that eavesdropper will come to know that this specific information will contain some confidential data. But Stegnography is completely opposite to it. It simply hide the content, In it only sender and receiver will come to know about the confidential information. Now, in this research article We will show that how an audio message will secretly hides confidential data and send it over a medium without a man in the middle will come to know about it: by using Coagula by sender to embed the message in audio and Sonic Visualizer by receiver for decoding purposes. The message which is to be send it can be audio, video, text, image and etc, but here we concerned about image which contain secret information. When image is embed in audio signal then it become stego-signal. In it quality of audio does not suffer because quality is checked twice before and after the extraction of secret message. Quality of stego-image is measured by peak signal to noise ratio(PSNR), Structural Similarity Index Metric(SSIM), Now extracted image is measured by Signal to noise ratio(SNR) and Squared Pearson correlation coefficients(SPCC). Both the quality measures will show good results.