DISCOVERY

• Home
• Archive
• Aim & Scope
• For Authors
• Manuscript Submission
• Contact Us

Volume 14 - 16, Issue 35 - 46, April 2014

About the Cover

Heavy metal concentration was determined in water samples of river Yamuna flowing through Yamunanagar. Three sampling stations were selected: Station Y1 at the upstream of the river before the influx of effluents, Station Y2 at the point of influx and Station Y3 at 5 kilometres downstream from station Y2. Six heavy metals were analysed seasonally during the study period, viz., lead, cadmium, nickel, cobalt, copper and zinc from the water samples. The results showed thatPb, Cd, Ni, Cu and Zn were present in recordable concentrations while Co was present in traces at all the stations. Maximum concentration was observed for zinc whereas minimum concentration was observed for nickel in river water at different stations. However, the values were within the permissible limits (WHO, 1993) except for Cd.

Previous | Next

DISCOVERY OF THE MONTH

Discovery of the “name” America as a continent in world map dates to April 25, 1507

Brindha V

AMERICA was named in honor of Amerigo Vespucci, for his discovery of the mainland of the New World. Since the late 19th century, conflicting ideas about the truth of the derivation have been set forth with profound cultural and political implications. The earliest known use of the name America for this landmass dates from April 25, 1507, where it was used for what is now known as South America.

Discovery, 2014, 14(35), 6

Full Text | PDF

ANALYSIS

Rendering cross-cultural transformation using art for peace education: a study of windows project in Delhi

Cherian, Reena Merin & Singh, Jessica

Art is understood as comprehensive and advanced human activity that defines human subjectivity and experiences and helps transcending and transforming the same as a tool for social change. This makes art and related expressions an ideal tool for educating children by affecting the emotional intelligence and thereby positively impacting global peace. Permeating art in the existing educational system will also bring out sensitization for cross-cultural transformation.

Discovery, 2014, 14(35), 7-15

Full Text | PDF

RESEARCH

Environmental Impact Assessment of Missile Test Firing

Satpathy JK, Panigrahi Tanuja, Sahu SK, Panda RB

Combustion of propellant during missile test firing generates a lot of toxic gaseous pollutants in to the local atmosphere. During 2011–13, there were 17 No of test firing of different types of missiles from LC - I, LC-II & LC-III in Chandipur & LC-IV in Dhamra. To find out the concentration of toxic gases after test firing, monitoring of gases were carried out an hour after test firing and tested for different parameters like RPM, SO2, NOX, CO, HCN & Cl.

Discovery, 2014, 14(36), 19-26

Full Text | PDF

ANALYSIS

Constructions of diophantine quadruple with property D (6 pq) 2

Meena K, Vidhyalakshmi S, Gopalan MA, Nancy T

This paper concerns with the study of constructing non-zero integer quadruple (a,b,c,d) such that the product of any two elements of the set increased by a square is a perfect square. Different relations between the elements of the quadruple and special numbers are presented.

Discovery, 2014, 14(37), 30-33

Full Text | PDF

RESEARCH

Limnological study of a Fresh Water Pond, Nashik District (MS), India

Tidame SK, Thakare CV

Present work focused on the seasonal variation in the physico-chemical parameters of the fresh water pond- Prayagtirth, located at Trimbakeshwar in Nashik district, for two consecutive years 2010-2011 and 2011-2012. A total of 15 parameters were analysed and seasonal variation in values of two years is discussed. The data is represented as seasonal mean ± S.D. with coefficient of variation.

Discovery, 2014, 16(43), 7-11

Full Text | PDF

Heavy metal concentration in surface water samples of river Yamuna in Yamunanagar (Haryana), India

Priyanka Malhotra, Girish Chopra, Anita Bhatnagar

Heavy metal concentration was determined in water samples of river Yamuna flowing through Yamunanagar. Three sampling stations were selected: Station Y1 at the upstream of the river before the influx of effluents, Station Y2 at the point of influx and Station Y3 at 5 kilometres downstream from station Y2. Six heavy metals were analysed seasonally during the study period, viz., lead, cadmium, nickel, cobalt, copper and zinc from the water samples.

Discovery, 2014, 16(44), 15-19

Full Text | PDF

Optimization of Biodiesel Yield Using Response Surface Methodology

Anand Parkash Dahiya, Berwal AK, Khan BK

Biodiesel produced from vegetable oils through transesterification is a common practice. The biodiesel yield through this process is affected by various process variables and contents of saturated and unsaturated fatty acids. In this study coconut and sunflower oils have been used and the yield has been optimized by using a Response Surface Methodology, considering molar ratio, catalyst concentration and reaction temperature as a process variable.

Discovery, 2014, 16(45), 23-29

Full Text | PDF

Benign ZnO Nanoparticle as a practical Adsorbent for Removal of As3+ Embedded on Activated silica using Ocimum Sanctum

Gnanasangeetha D, SaralaThambavani D

This new-fangled green synthesis progress shows that the environmentally benign ZnO-NPs-AS is potent adsorbent for the removal of As3+ primed from leaf extract of Ocimum Sanctum. Competently wrecked Zinc oxide nanoparticle ingrained on activated silica (ZnO-NPs-AS) using Zinc acetate, sodium hydroxide and activated silica synthesised had assorted roles.

Discovery, 2014, 16(46), 33-41

Full Text | PDF