Volume 9, Issue 3, March 2018

Improvements in Secure Deletion Mechanism for Crucial Data on Android Gadgets

A. Tariq and M.J. Qureshi

Computer Science and Engineering Department

Abstract– In the current era, due to the advancement of technology and improved services, use of smartphones is becoming more popular day by day. The use of smartphones is not only restricted to instant messages and calls but people also perform business transactions and social networking as well. But with the massive use of phones the safety and security of data is always a critical issue if the phone is stolen, lost or fell into the custody of an adversary. While mostly data communication is secured through encryption but due to the efficiency issues whole data can never be encrypted. Anyhow, normal deletion method also misleads the user into considering that all data had been removed but that’s not the situation. On the other hand, once removed data from normal operations can be retained using various methods. We did analyze work done on the way to secure removal of data. Furthermore, to delete critical data, it offers some mechanism assuring that once data deleted this way can never be retained by any adversary.

Keywords— Secure Deletion, Android OS, Flash Memory, Critical Data and Mobile Security

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Bleaching Efficiency of Kaoma Bentonic Clay Using Methylene Blue Dye as the Adsorbate

Julius S. Banda, Charles Wamulwange and Abraham M. Simwinga

Department of Metallurgy, Copperbelt University, Box 21692, Kitwe
Private Consultant, Lusaka

Abstract– Most clay minerals are fine-grained and are widely used as adsorbents because of large surface area. Activation increases the surface area of clays and leads to more industrial applications. Chemical charaterisation and activation of clay from Kaoma was carried out in order to promote its use in the edible oils industry. Activation was carried out by leaching with sulphuric acid for 2 hours in the temperature range 90–95oC. The effect of activation was assessed by measuring the absorbance of UV radiation of methylene blue dye solutions which were treated with powders activated at varying acid additions. Absorbance data for all solutions was obtained at a pH value of approximately 6.60. The dye solutions were bleached to different extents depending on the amount of acid employed. A bleaching efficiency of up to 99% was achieved. Bleaching efficiency results exhibited an optimum in the acid dosage range, 5–10%.

Keywords— Acid Activation, Bleaching Earth, Cation Exchange Capacity, Bentonite, Bleaching Efficiency and Aluminosilicate

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Real World Big Data Processing Structure: Problems and Solutions

K. Imtiaz

University of Engineering and Technology, Lahore Campus Pakistan, Computer Science and Engineering Department

Abstract– Information sort and sum in human culture is developing in astonishing pace which is brought about by rising new administrations as distributed computing, web of things and area-based administrations, the time of enormous information has arrived. As information, has been principal asset, how to oversee and use enormous information better has pulled in much consideration. Particularly, with the advancement of web of things, how to handling huge sum continuous information has turned into an extraordinary test in research and applications. As of late, distributed computing innovation has pulled in much consideration with elite, yet how to utilize distributed computing innovation for substantial scale ongoing information preparing has not been contemplated. This paper concentrated the difficulties of huge information firstly and finishes up every one of these difficulties into six issues. Keeping in mind the end goal to enhance the execution of constant handling of substantial information, this paper manufactures a sort of real-time big data processing (RTDP) design considering the distributed computing innovation and after that proposed the four layers of the engineering, and various leveled figuring model. This paper proposed a multi-level stockpiling model and the LMA-based application organization technique to meet the continuous and heterogeneity necessities of RTDP framework. We utilize DSMS, CEP, group-based Map Reduce and other handling mode and FPGA, GPU, CPU, ASIC advancements contrastingly to preparing the information at the terminal of information gathering. We organized the information and afterward transfer to the cloud server and Map Reduce the information consolidated with the effective processing abilities cloud design. This paper brings up the general structure for future RTDP framework and computation techniques, is right now the general strategy RTDP framework outline.

Keywords— Big Data, Cloud Computing, Data Stream, Hardware Software Co-Design, CEP and Big Data Cloud Architecture

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The Influence of Organizational Culture on eGov Acceptance By Employees: Case of Morocco

ADERKAOUI Abderazak, OUMLIL Rachid and AQUELMOUN Abdessalam

Ibn Zohr University, LaRGe at ENCG Agadir, Morocco

Abstract– This article aims to shed light on how organizational culture influences the acceptance of Electronic Government (eGov) by employees in a North African country, Morocco. Based on the Technology Acceptance Model (TAM, Davis et al., 1989), the authors propose a model extending TAM to Uncertainty Avoidance (UA) as the most cultural factor used in eGov acceptance researches, and Perceived Risk (PR) as mediator factor between UA and Intention (INT). The study was conducted in a Moroccan public organization named Social Development Agency (SDA), based in Rabat- the administrative capital of Morocco. The sample is composed of 81 employees representing 64% of the target population (136 employees). The structural equation modeling (SEM) technique was employed with the Smart PLS software to assess the causal relationships that were hypothesized in the proposed model. The findings indicated that the proposed model explains 36, 3 % of total variance in the INT to accept eGov by employees. They also showed that UA, PR, Perceived Ease of use (PEU), and Attitude (ATT), exert a notable influence on employees’ Intention to accept eGov. Otherwise, the influence of Perceived Usefulness (PU) was not significant.

Keywords— eGov, TAM, Uncertainty Avoidance, Perceived Risk, Morocco and North African Country

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