International Journal of Advanced Research in

Science and Technology (IJARST)


Volume 4 - Issue 8 | 2015


01. Multitude based Quiz System: Targeted Crowd Sourcing.

A. Prakasa Rao* and G. Syam Prasad

Graphical abstract

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Highlights

The multitude (Crowd) based Quiz System is described as gamified system that simultaneously accesses the knowledge of users and acquires the new knowledge from them. This QS operates by asking the users some basic questions to know their basic knowledge. To acquire the new knowledge QS also incorporates new questions that we don’t have known answers. The answers given by the competent users provide useful information for selecting the correct answers. QS Also tries to identify the competent users on the Internet by running the advertisement campaign. This QS quantifies the user contribution by the principle of Information Gain and sends feed back to the each user about their contribution. The cost and quality of this approach is optimized in terms of less cost and good quality respectively for this paid crowd sourcing.

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02. Water Quality of Fox Sagar Lake, Hyderabad, Telangana State, India, Its Suitability for Irrigation Purpose.

Manchala Lingaswamy* and Praveen Raj Saxena

Graphical abstract

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Highlights

Water quality indices provide a simple and understandable tool for managers on the quality and possible uses for irrigation water, however an individual quality factor alone is not enough to evaluate the irrigation water quality because it could be restrictive and sometimes it could give an unfavorable qualification. The aim of this paper is to assess water quality and its suitability for irrigation purpose of Fox Sagar Lake, Hyderabad, Telangana State. As a part of this, fourteen samples were collected from the lake during monsoon season of 2014 and analyzed for various physico-chemical parameters like pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Total Hardness (TH), Carbonates (CO32-), Bicarbonates (HCO3-), Total Alkalinity (TA), Chloride (Cl-), Sodium (Na+), Potassium (K+), Calcium (Ca2+) and Magnesium (Mg2+) were analyzed. To assess the suitability of lake water for irrigation, various indices like Hydrogen Ion Activity (pH), Salinity Hazard, Sodium Adsorption Ratio (SAR), Soluble Sodium Percentage (SSP), Residual Sodium Carbonate (RSC), Scott quality factor (alkali-metric coefficient or K), Permeability Index (PI) and Kelly's Index (KI) were calculated and found that lake waters falls under good quality.

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03. Effect of Hydroxyapatite on Structure, Morphology and Tensile Properties of Polyethylene/Starch Blend.

B.O. Asimeng*, B. Kwakye-Awuah and E. Effah Kaufmann

Graphical abstract

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Highlights

Linear low-density polyethylene (LLDPE)/starch blends filled with hydroxyapatite were synthesized by injection moulding to study the effect of hydroxyapatite (HAp) on surface modification of polyethylene/starch blend and its influence on tensile properties. Hydroxyapatite contents were varied from 1.0% to 3.0% in intervals of 0.5% by parts and the blends were characterised. Seven different samples were formed for the study and each sample was tested in five replicates for the tensile modulus, strength and elongation to failure. Two of the samples, one composed of only LLDPE and the other of 60% LLDPE, 40% starch, and 0% hydroxyapatite, were used as controls. The 2Theta peak transpositions of the XRD patterns, crystallinity and microstructure of the blends have been noticed to affect the tensile strength, modulus, and elongation to failure. The incorporation of HAp content into LLDPE/starch returned an increase in strength from 11.05±0.3 to 11.98±0.2 (p = 0.0008).

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04. Study of the effect of saliva on the static surface tension of water and some soft drinks using capillary rise method.

J B Yerima*, E I Emmanuel, Simon Solomon and Dikko A. B.

Graphical abstract

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Highlights

The effect of saliva on the surface tension of water, Schweppes, Coca-Cola, Fanta and sprite has been measured at 22.50C using capillary rise method. The results show that saliva decreases the surface tension of these liquids with water having the largest % decrease (60.4%) and Fanta the least (29.1%). This implies that when saliva breaks the surface tension of water, the increase in the surface area of the water which fastens digestion is greater than those of the soft drinks. Consequently, water-saliva mixture creates a better medium for digestion and transport of food in the mouth than the soft drinks. It is ascertained that even though water is tasteless and gives lesser comfort and satisfaction to consumers than soft drinks, it still remains the best medium for digestion of food in the mouth.

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05. Assessment of Water Quality around Jawaharnagar Dumpsite, Hyderabad using Water Quality Index (WQI).

B. Soujanya Kamble* and Praveen Raj Saxena

Graphical abstract

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Highlights

Hyderabad is a metropolitan city with a population of more than six million and the extent of municipal solid wastes ranges from 2500-5000 Metric tons per day. The present work is aimed to assess the quality of water resources surrounding Jawaharnagar Dumpsite and its suitability for drinking purpose using Water Quality Index (WQI). As a part of study, 2 surface and 12 ground water samples were collected during the pre-monsoon (March-2015) and have been analyzed for various physico-chemical parameters as per standard procedures. Results were compared with the standards as prescribed by World Health Organization (WHO, 2006) for drinking purpose. Results indicate that almost all the 14 water samples are of poor quality and unfit for drinking purpose.

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