Informatics Publishing Limited

R. K. Mohanty ¹, I. N. Basumallick ¹, S. Bhowmik ¹, A. Das ¹, T. K. Bhattacharya ¹

Affiliations
1 Department of Chemistry, Visva-Bharati, Santiniketan-731235, IN

Abstract

Free energies (ΔG⁰_m), Entropies (ΔS⁰_m) and Enthalpies (ΔH⁰_m) of micellisation of Cetyl-Trimethyl Ammonium Bromide (CTAB) in glycerol+water mixtures containing 10,30,40, and 50 weight percent of glycerol and in urea+water mix ures containing 10, 30 and 40 weight percent of urea have been reported from CMC measurements at 25,35 and 45°C using the conductance method. Analysis of ΔG⁰_m vs composition of cosolvent plots indicate that micellisation is favoured in both the solvent systems almost to the same extent except for the fact that micellisation is decreased at high concentration of glycerol and increased at high concentration of urea. Entropy (ΔS⁰_m) - composition profiles and Enthalpy (ΔH⁰_m)-composition profiles are more or less similar for both the systems, except at high cosolvent composition.

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S. Nath ¹, A. Das ¹

Affiliations
1 R. G. Kar Medical College & Hospital, Calcutta, IN

Abstract

No Abstract.

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P. K. Pau ¹, A. Bhuimali ², A. Das ¹, D. Chatterjee ³

Affiliations
1 DCIS, Raiganj University, Raiganj, West Bengal, IN
2 Raiganj University, Raiganj, West Bengal, IN
3 Seacom Skills University, Bolpur, Birbhum, West Bengal, IN

Abstract

Information foundations are the most important and valuable feature in the field of information science which are mainly dedicated to several information activities ranging from collection, selection, organisation, processing, management, and dissemination of information to several clients and users directly or indirectly. Information science and documentation are main aim for information foundations of all types. Information foundations such as information centre, data centre, use so many electronic products which release many harmful chemicals and products which are against environment and human being. Hence possibilities of using alternative technologies may reduce such problem in many ways as far as better and sophisticated environment is concerned. This paper talks about information foundations, including its types and features and ways to integrate computing and allied technologies to promote such services.

Keywords

Information, Data, Information Foundations, Green Computing, Information Technology, Information Systems, Environment, Sustainability.

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A. Das ¹, C. Mondal ¹

Affiliations
1 Department of Chemical Engineering, Jadavpur University, West Bengal, IN

Abstract

In the recent years global energy crisis increased at a fast pace. Demand for the use of fossil fuels for cooking and other commercial activities increased along with the increasing population of India. Use of renewable sources of energy viz. biogas for cooking etc can somewhat be an alternative for the excessive demand of fossil fuels like LPG. In this study, the catalytic effect of tungsten for maximizing biogas have been presented. Essentially, anaerobic digestion process have been conducted in batch reactors for a retention time of 15 days at a constant temperature of 27°C. Necessary cumulative and differential plots between yield of biogas and retention time have been studied for individual anaerobic digestion processes at different slurry and catalyst concentrations so as to observe the optimum slurry and catalyst concentration for maximum biogas production. Maximum yield of biogas have been obtained with 5% slurry concentration at 1.5g/l catalyst concentration.

Keywords

Catalytic Effect, Anaerobic Digestion, Retention Time, Slurry Concentration, Catalyst Concentration.

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R. P. Barman ¹, A. Das ¹, S. S. Mishra ¹

Affiliations
1 Zoological Survey of India, 27, J.L. Nehru Road, Kolkata-700 016, IN

Abstract

The snappers (Perciformes: Lutjanidae) are known to be represented by 9 genera and 41 species in India (Talwar, 1991), while 17 genera with about 105 species are recognized in the world (Nelson, 2006). The genus Lutjanus Bloch is represented by 68 species (Froece and Pauly, 2013), of which a few species are characterized in having pale or yellowish ground colour with 4 to 8 blue longitudinal stripes (brownish in preservative). Such blue striped snappers are namely, L. bengalensis (Bloch, 1790), L. coeruleolineatus (Ruppell, 1830), L. kasmira (Forsskal, 1775), L. notatus (Cuvier, 1828), L. quinquelineatus (Bloch, 1790) and L. viridis (Valenciennes, 1846) (Allen, 1985).

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R. P. Barman ¹, A. Das ¹, S. S. Mishra ¹

Affiliations
1 Fish Division, Zoological Survey of India, Kolkata, IN

Abstract

The snappers (Perciformes: Lutjanidae) are important food fishes throughout its range of occurrence including India. Their flesh is of delicate taste and highly esteemed, but some species have been reported to cause ciguatera poisoning. These fishes usually found near the bottom in tropical and subtropical seas from shallow water to depths of about 550 m.

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S. S. Mishra ¹, A. Das ¹, R. P. Barman ¹

Affiliations
1 Zoological Survey of India, 27 J.L. Nehru Road, FPS Building Kolkata-700017, IN

Abstract

The identity of snakehead fishes (Perciformes: Channidae) in India, particularly species belonging to Channa gachua complex remains to be confusing due to clubbing of a number of species under the synonymy of Channa orientalis Bloch and Schneider by several authors including Talwar and Jhingran (1991), Jayaram (1999) and Menon (1999) as well. Courtenay and Williams (2004) considered most of these synonyms are incorrect and records of C. orientalis from southern parts of India and elsewhere except for Sri Lanka are erroneous.

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Y. Srivastava ¹, A. Kumar ¹, A. Basu Sarbadhikari ¹, D. Ray ¹, V. M. Nair ¹, A. Das ¹, A. D. Shukla ¹, S. Sathiyaseelan ¹, R. Ramachandran ¹, B. Sivaraman ¹, S. Vijayan ¹, N. Panwar ¹, A. J. Verma ¹, N. Srivastava ¹, A. Rani ¹, G. Arora ¹, R. R. Mahajan ¹, A. Bhardwaj ¹

Affiliations
1 Physical Research Laboratory, Ahmedabad 380 009, India., IN

Abstract

No Abstract.

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