Informatics Publishing Limited

R. Radhika ¹, P. Gajivaradhan ²

Affiliations
1 Manonmaniam Sundaranar University, Tirunelveli
2 Mathematics Department, Pachaiyappa's College, Chennai

Abstract

Electronic waste or e - waste is a collective term for old, end of life electronic and electrical appliances like computers, laptops, televisions, DVD players, cell phones etc., which have been disposed of by their original users. Rapid economic growth, urbanization and increasing technological advancements have contributed to the accumulation of e - waste in alarming amounts. The improper management of e - waste poses environmental hazards. The Union Environment and Forest Ministry of India has rolled out the new E - waste Policy wherein manufacturers of electronic goods are required to collect and treat the e - waste generated by them. In this paper, the multi criteria decision making (MCDM) of choosing the best e - waste management service provider is evaluated using a novel fuzzy TOPSIS approach.

Keywords

E-waste, MCDM, Fuzzy Topsis

Full Text

     

V. Vijay Anand ¹, R. Renganathan ¹, V. Srinivasakumar ¹, S. Balachandran ¹, V. Abarna Vaishaly ¹, S. Sindhuja ¹, R. Radhika ¹

Affiliations
1 School of Management, SASTRA University, Thanjavur - 613401, Tamil Nadu, IN

Abstract

Indian rural market has a vast size and demand base. Considering this huge potential markets, companies started to concentrate more on this markets. One of them is DTH service, the offerings given by cable is not enough so the evolution of DTH came into existence. And its impact is now spread to rural markets also. Though it is a fact the buying behavior of any product or brand is based on the brand preference factors of a consumer. The study reveals the relationship between consumer brand preferences with purchase decision of customers towards DTH services. Finally the researchers found that most of them go with DTH rather than cable, because of its poor network and facilities. Objectives: The objectives of the study are to find the association between demographic factors and brand preference of the respondents of DTH users in rural areas; to study the variation between demographic factors and brand preference; to understand the effect of study variables such as cost, features, convenient services and support facilities on brand preference, to examine the relationship between brand preference and purchase decisions and to find out the effect of brand preference on purchase decisions. Method/Analysis: The researchers have collected primary data from 100 respondents from the customers of DTH by applying the structured questionnaire. The statistical tools such as Chi square test, one-way ANOVA and regression analysis were adopted for analysis purpose. Findings: There is association between the demographic factors viz., age, area, monthly income of the respondents with the Consumer Brand Preference. The research results also revealed that there is no association between the gender of the respondents and the Consumer Brand Preference. From the regression results, the researcher found that the Brand preferences do not vary with the demographic factors namely gender, age and area of the respondents. The results also revealed that the Brand preference do vary with the income of the respondents. The results revealed that there is a significant relationship between Consumer Brand Preference and Purchase Decision. There is a significant effect of Consumer Brand Preference on Purchase Decision. Applications/Improvements: The DTH has to consider the suggestions out the study results for further improvement in sales and services by comparing with other competitors. The study will enhance the organization to come out with best outcomes.

Keywords

Consumer Brand Preference, DTH, Purchase Decision.

Full Text

   

R. Radhika , R. Ramesh

Abstract

In this project a 128-point FFT/IFFT processor for ultra wideband (UWB) systems, FFT algorithm is used to reduce the computational complexity of DFT and to eliminate the redundant complex multiplication. The proposed pipelined FFT architecture called mixed radix multipath delay feedback (MRMDF) can provide a higher throughput rate achieved by using butterfly units. In addition the number of complex multiplications reduced effectively by using a higher radix algorithm. The 128-point mixed radix FFT/IFFT algorithm is implemented to power consumption and hardware cost can also be saved. Here memory based FFT architecture will decompose a larger FFT computation into several cascaded smaller FFTs and utilize a single FFT core to reduce the hardware cost.

Keywords

Fast Fourier Transforms (FFT), Ultra Wideband (UWB), Multiplier

Full Text

   

R. Radhika ¹

Affiliations
1 N.S.S. Hindu College, Changanassery-686 102, Kerala, IN

Abstract

The samples were collected in five sampling campaigns conducted during postmonsoon 2008, premonsoon 2009, monsoon 2009, postmonsoon 2009 and premonsoon 2010. The phytoplankton species dominant in premonsoon were mainly species of Chorella, Asterionella, Ceratium, Coscinodiscus, Nitzschia and Trichodesmium. During monsoon, species of Arthodesmus, Chaetoceros, Closterium, Dinorhysis and Spirogyra were abundant. Species of Volvox, Closterium, Peridinium and Ceratium were mostly represented. Copepods the main secondary producers were represented by species belonging to Acartia, Pseudodiaptomus, Paracalanus, Oithona and Coryceus. Copepods have indicated increase in carnivorous species namely Tortanus, Oithona, Oncaea and Corycaeus spp. The main fish species studied were Oreochromis mossambicus, Mugil cephalus, Channa striatus and Etroplus suratensis. Enumeration of the fish species in 2008 reported only 50 species as against 160 species observed in 1970’s. The changes in hydrochemical properties indicate environmental degradation with the increase of nutrient load. Eutrophication and harmful algal blooms are also observed. The recent reports of octopus in the fishing nets operating in the backwater suggest that salinity of backwater is on par with that of the Arabian Sea during premonsoon period. There is marked alteration in the predator components in the coastal fishery showing a significant rise in puffer fish. Recently, scientists from Central Marine Research Institute have spotted many dolphins in the CBW. Climate change and temperature rise in coastal waters cause damage to marine, estuarine and inland fishes. Vulnerability of plankton and fish in CBW exposed to floods and salinity ingress is causing serious threat to many traditional species.

Keywords

Cochin Backwater, Monsoonal Floods, Nutrients, Plankton Fish.

Full Text

   

P. R. Jayachandran ¹, B. P. Aneesh ¹, Anders Hallan ², N. K. Vishnudattan ¹, M. Jima ¹, R. Radhika ¹, S. Bijoy Nandan ¹

Affiliations
1 Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi - 682016, Kerala, IN
2 Australian Museum Research Institute, William Street, Sydney NSW - 2010, AU

Abstract

The previous confirmed report of planorbid snail genus Amerianna from Indian sub-continent was limited to description of a new species, Bulinus indicus from Pune, Maharashtra, later it was recognised as Amerianna carinata. This study reports first molecular information of genus Amerianna from India and first confirmed report of this genus from southern India. Based on a BLAST query of a cytochrome oxidase subunit I sequence (cox1), the Indian material (Kochi, Kerala) showed 99.2% similarity with Amerianna from New Guinea. Since Amerianna systematic is complex it may require extensive taxonomic revision for the species status to be further studied.

Keywords

Bulinus indicus, Edappally Canal, Freshwater, Kerala, Kochi, Planorbella scalaris.

Full Text