Informatics Publishing Limited

T. Seshunarayana ¹, P. Senthil Kumar ¹, V. Sampath Rao ¹, D. Mysaih ¹, K. Satish Kumar ¹, P. Pavan Kishore ¹

Affiliations
1 National Geophysical Research Institute, Uppal Road, Hyderabad-500007, IN

Abstract

Delineation of shear zones and fracture systems in hard rock areas is essential in locating potential groundwater zones. The Mu1tichannel Analysis of Surface Waves (MASW) is a new developing seismic geophysical technique, which has now been widely used in imaging shallow subsurface, in terms of shear wave velocity. We test its potentiality in Hyderabad granite terrain, at Wailapally watershed, for delineating shear zones and fractures in a shallow granite basement covered with thin weathering and alluvium cover. Surface wave data were obtained at three sites using 24 channel seismograph, and were used to model the shear wave velocity of the subsurface. The study clearly demarcates the bedrock depths, shear zones or faults, fractures, weathering and soi1 covers in the shallow subsurface up to a depth of -30 m, the results are also in good agreement with the surface geological observations. Therefore, the MASW is an excellent geophysical tool that can clearly demarcate the shallow structures favorable for groundwater in hard rock areas.

Keywords

Surface Waves, Shear Zones, Fractures, Granite, Groundwater, Wallapally, Hyderabad, Andhra Pradesh.

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K. Venkatesh Sharma ¹, K. Satish Kumar ²

Affiliations
1 Department of CSE at Sri Indu College of Engineering & Technology, IN
2 Computer Science and Engineering from Sri Indu College of Engineering & Technology, JNTU, Hyderabad, IN

Abstract

Adoption of web applications is increasing for multipurpose services. However, their correct functioning is mission critical for many businesses. At the same time, Web applications tend to be error prone and implementation vulnerabilities are readily and commonly exploited by attackers. The design of countermeasures that detect or prevent such vulnerabilities or protect against their exploitation is an important research challenge for the fields of software engineering and security engineering. In this paper we introduce a single J2EE based web application which can able to handle several vulnerabilities at application level, mainly these are related to injection types, cross site scripting, browser caching and also protecting the session data dependency via changing session identifier at runtime, sequential access and session expiration. By handling all these things together in an application we can protect our web application successfully from the common vulnerabilities.

Keywords

Web Application, Vulnerabilities, Session Data, Security, Injection Flaw, Cross Site Scripting, Web Application Firewall (WAF).

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P. Srinivas ¹, K. Satish Kumar ²

Affiliations
1 Department of Civil Engineering, RVR & JC College of Engineering, Chowdavaram-522 019, A.P., IN
2 Deptt. of Civil Engineering, K. L. College of Engineering, Vaddeswaram-522 502, A.P., IN

Abstract

There is a strong demand for environmentally safe reuse and effective disposal methods for Municipal solid waste (MSW) due to the increasing amount of waste generated by the various residential buildings, commercial establishments and various other institutions. MSW refers to the stream of garbage collected through community sanitation services. Medical wastes from hospitals and items that can be recycled and utilized for generating electricity are generally excluded from MSW. The major portion of MSW that is not recycled is typically sent to landfills after it is collected. As an alternative, MSW can be combusted in waste-to-energy combustors, which facilitates to generate electricity. The combustion of municipal solid waste results in reduction of its quantity. MSW combustion creates a solid waste called ash, which can contain any of the elements which were originally present in the waste. Using it as an engineering construction material attains the ultimate disposal of incinerated solid waste ash. The incorporation of municipal solid waste ash in the manufacturing of cement hollow bricks has been systematically investigated. The effect of proportion of incinerated municipal solid waste (ash) on the strength and quality of the brick has been investigated. The use of incinerated municipal solid waste as construction material and building material converts the waste into useful products that can alleviate the disposal problems. The present work has demonstrated a feasible way of using incinerated municipal solid waste ash as a cement replacement material to produce quality bricks. The bricks manufactured did not show any deformation or uneven surfaces and the bricks can be used for construction purposes.

Keywords

Municipal Solid Waste, Incineration Ash, Cement Hollow Bricks, Compressive Strength, Recycling.

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P. Srinivas ¹, K. Satish Kumar ², S. Bala Prasad ³

Affiliations
1 Deptt. of Civil Engineering, RVR & JC College of Engineering, Chowdavaram-522 019, A.P., IN
2 Deptt. of Civil Engineering, K L University, Vaddeswaram-522 502, Guntur Dist, Andhra Pradesh, IN
3 Deptt. of Civil Engg., Andhra University College of Engineering, Visakhapatnam-530 003, A.P., IN

Abstract

Water auditing is very useful to estimate water losses and savings. Water audit identifies water uses such as sanitation, irrigation, heating and cooling process and maintenance of the distribution system. Unaccountable losses are investigated and areas are identified in which water use efficiency can be improved using alternative technologies or practices. A comprehensive audit can give the utility and detailed profile of the distribution system and water users, allowing appropriate management of water resources and improved reliability. It is an important step towards water conservation and linked with a leak detection plan that can save the utility of a significant amount of fresh water and time. Therefore, water supply balance studies are an important part of water auditing. The water supply balance studies were carried out for industries like Visakha Steel Plant, Visakha Port Trust and Visakha Diary, which are situated in and around Visakhapatnam city. The savings with reference to water quantity and money were estimated for various organizations. It was found from initial water supply balance studies that in VSP, the water that can be saved without any additional investment is 87.372 million gallons per day. This saves an amount of Rs. 0.9783 crore per day. It was also found that the water could be reduced up to 80% by using recycled water.

Keywords

Water Supply Balance, Water Auditing, Water Savings, Water Losses.

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