ID: 57066
Title: Study on Copolymerization of CO/Styrene with [CH3C4Py]+PF6- as Novel reaction medium
Author: Jintang Guo, Shan Gao, Yakai Feng and Jing Wang
Editor: Dr Shankar Gargh
Year: 2010
Publisher: Research Journal of Chemistry and Environment, Vol 14 (2), June 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Ionic liquids, Palladium composite catalyst, carbon monoxide, styrene, polyketones
Abstract: In this paper, pyridine (N-methylimidazole), bromoalkane, potassium hexafluorophosphate (sodium fluoborate) were used to prepare eleven ionic liquids, which were further applied to the copolymerization of CO and styrene as reaction medium. NMR, IR, XPS, TEM were employed to prove the prepared poly (1-oxo-2-phenyltrimethylene) was high crystal and strictly alternating copolymer. Effect of various ionic liquids on the copolymerization was studied to identify that the optimal ionic liquid to the copolymerization was 1-butyl-4-methylpyridine hexafluorophosphate which was then used as solvent of the CO/Styrene reaction. Moreover, effect of volume of ionic liquid, reaction temperature, reaction time, consumption of p-benzoquinone and ligands were also studied in detail. Results showed that the highest catalytic activity reached 723.34gSTCO/(gPd-h) with the reaction conditions as follows: volume of ionic liquid = 3ml, temperature of reaction temperature =600, reaction time = 2h, molar ratio of P-benzoquinone/ acetate palladium = 80 and 0.0225 mmol, [Pd (N(CH3)-N(CH3))2[PF6]2 as composite catalyst; polyketones could still be obtained after 4 times recycles of the catalyst. The application of ionic liquids instead of tranditional solvents in the copolymerization of CO/Styrene supplied a feasible approach to reuse the catalyst and reduce the reaction cost.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57065
Title: Are conservation actions reducing the threat to India ' s vulture populations?
Author: Richard J Cuthbert, Vibhu Prakash, Mohini Saini, Suchitra Upreti, Devendra Swarup, Asit Das, Rhys E Green and Mark Taggart
Editor: P Balaram
Year: 2011
Publisher: Current Science Association, Vol 101, No 11, 10 December 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: Carcass, conservation actions, non-steroidal anti-inflammatory drugs, vultures
Abstract: Veterinary use of the non-steroidal anti-inflammatory drug, diclofenac is responsible for the population collapse of resident vulture species in India. Conservation efforts, including a ban on veterinary diclofenac and the identification of a vulture-safe alternative (meloxicam), were introduced in 2006 in order to address the threat. Sampling of domesticated ungulate carcasses available to vultures in India was undertaken in three surveys prior to, around the time of, and 1-2 years after the ban in order to quantify the prevalence of diclofenac and meloxicam residues. A total of 1445, 1488 and 1251 liver tissue samples were collected from nine states and analysed with a validated LC-ESI/MS methodology. Overall diclofenac prevalence levels declined by almost a half over the three surveys, and there was an increase in meloxican prevalance between the second and third surveys, although some states revealed little change. These surveys indicate that two of the key conservation actions to counter the threat faced by vultures-banning veterinary diclofenac and promoting meloxicam as a safe alterntive-are beginning to take effect. However, because only a small proportion of diclofenac-contaminated carcasses is sufficient to cause vulture population declines, further efforts are needed to eliminate diclofenac from the food supply of India ' s vultures.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57064
Title: The 18 September 2011, North Sikkim earthquake
Author: Kusala Rajendra, C P Rajendran, N Thulasiraman, Ronia Andrews and Nima Sherpa
Editor: P Balaram
Year: 2011
Publisher: Current Science Association, Vol 101, No 11, 10 December 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: Epicentre, focal depth, post-earthquake survey, seismotectonic setting
Abstract: The 18 September 2011, magnitude Mw 6.9 earthquake close to the Nepal-Sikkim border caused significant damage due to ground shaking and caused several landslides. Observations from the post-earthquake surveys in the affected areas within Sikkim suggest that the poorly engineered, multistoried structures were relatively more impacted. Those located on alluvial terraces were also affected. The morphology of the region is prone to landslides and the possibility for their increased intensity during the forthcoming monsoon need to be considered seriously. From the seismotectonic perspective, the mid-crustal focal depth of the North Sikkim earthquake reflects the ongoing deformation of the subducting Indian plate.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57063
Title: Performance evaluation of delay in optical packet switching using various traffic patterns
Author: A Kavitha, V Rajamani and P Anandha Kumar
Editor: P Balaram
Year: 2011
Publisher: Current Science Association, Vol 101, No 11, 10 December 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: Optical packet switching, reservation bit algorithm, traffic pattern, wavelength assignment
Abstract: Delay is an important parameter in optical packet switching networks and it affects the performance of the network. In this communication, a mathematical analysis is carried out to evaluate the delay. Delay values are analysed for variable length packets for various traffic patterns, viz. non-uniform, Poisson and ON-OFF traffic patterns for various service classes using reservation bit algorithm. The results of the class-based models are compared with the existing port-based first-fit wavelength assignment algorithm. Delay values are reduced by 29% in the class-based model than in the port-based model. Furthermore, packet transmission rate in class-based model is higher by 15.4% than port-based model.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57062
Title: Simulating interactive effect of irrigation and nitrogen on crop yield and water productivity in maize - wheat cropping system
Author: Sangeeta Lenka and A K Singh
Editor: P Balaram
Year: 2011
Publisher: Current Science Association, Vol 101, No 11, 10 December 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: Crop water productivity, irrigation, maize-wheat system, nitrogen
Abstract: In this study the CropSyst model was used to quantify the interactive effects of various irrigation and nitrogen levels on crop water productivity in maize-wheat cropping system. Field experiments were carried out on clay loam soil at the research farm of Indian Agricultural Research Institute, New Delhi, with four consecutive crops (maize - wheat - maize - wheat) taken from July 2002 to April 2004. Three levels of irrigation, namely W1, W2 and W3 referring to limited, medium and maximum irrigation, were applied to each crop depending on seasonal rainfall and critical crop with five nitrogen levels from T1 to T5 (T1, 0% N; T2 75% N; T3, 100% N; T4, 150% N and T5, 100% N from organic source) in split plot design for the four crops grown in sequence.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57061
Title: Environmental significance of raised rann sediments along the margins of Khadir, Bhanjada and Kuar Bet islands in Great Rann of Kachchh, Western India
Author: N Khonde, D M Maurya, A D Singh, V Chowksey, L S Chamyal
Editor: P Balaram
Year: 2011
Publisher: Current Science Association, Vol 101, No 11, 10 December 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: None
Abstract: None
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57060
Title: Solanum macrocarpon, a wild brinjal, is not a source of resistance against brinjal shoot and fruit borer, Leucinodes orbonalis Guenee
Author: Vageeshbabu S Hanur, P V Rami Reddy, K Boopal, K N Srividya, S Poorvarasan, Shraddha Bhalewar, M S Saraswathi
Editor: P Balaram
Year: 2011
Publisher: Current Science Association, Vol 101, No 11, 10 December 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: None
Abstract: None
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57059
Title: The source of water on the early Earth
Author: A V Sankaran
Editor: P Balaram
Year: 2011
Publisher: Current Science Association, Vol 101, No 11, 10 December 2011
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: None
Abstract: None
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57058
Title: Investors and global players: Biomass with tailor-made financing
Author: Jorn Iken
Editor: Dr Volker Buddensiek
Year: 2012
Publisher: BVA Bielefelder Verlag GmbH & Co.KG, February 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Sun and Wind Energy - The magazine for Renewable energies
Keywords: Biomass
Abstract: Companies offer a portfolio of financing tools for large-scale biomass projects. There are hardly any standardised solutions.
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57057
Title: Data processing: Savvy solutions for super brains
Author: Ariane Rudiger
Editor: Dr Volker Buddensiek
Year: 2012
Publisher: BVA Bielefelder Verlag GmbH & Co.KG, February 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Sun and Wind Energy - The magazine for Renewable energies
Keywords: Wind turbines
Abstract: In order to get as much as possible out of wind as an energy source, wind turbines and farms need to be optimised. This also represents a challenge for information engineers, as computers and software algorithms are now used for many tasks in wind energy technology.
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57056
Title: Towers: High flyers
Author: Jorn Iken
Editor: Dr Volker Buddensiek
Year: 2012
Publisher: BVA Bielefelder Verlag GmbH & Co.KG, February 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Sun and Wind Energy - The magazine for Renewable energies
Keywords: None
Abstract: If rotor blades can spin at great heights, even weak wind locations become economically interesting. With the tried-and-true steel tower, however, hub heights of more than a hundred meters are just not possible. But alternative concepts are at hand.
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57055
Title: Module market: Solar climate getting rougher
Author: Markus Grunwald
Editor: Dr Volker Buddensiek
Year: 2012
Publisher: BVA Bielefelder Verlag GmbH & Co.KG, February 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Sun and Wind Energy - The magazine for Renewable energies
Keywords: None
Abstract: The bad news for the solar sector keeps coming. High-profile bankruptcies and takeovers are increasingly making the headlines. Some of the more recent examples are the insolvency of the Germany-based company Solon SE whose assets are now sold in a crisis sale, and Sunways, which has been taken over by China-based LDK Solar. Even thoudh the installed PV capacity in Germany again hit a record-setting 7.5 GW in 2011, the industry has been unable to realize its full capacity potential that year. The buzz word in the sector has since been surplus production, forcing the industry representatives to react or throw in the towel.
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57054
Title: Mirrors: Searching for the right specification
Author: Eva Augsten
Editor: Dr Volker Buddensiek
Year: 2012
Publisher: BVA Bielefelder Verlag GmbH & Co.KG, February 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Sun and Wind Energy - The magazine for Renewable energies
Keywords: Mirror, wavelength
Abstract: How much light of each wavelength a mirror can reflect, and in which direction, is information that has been hard to find on manufacturers ' technical specifications up to now. SolarPACES Task III is working on a uniform measuring procedure.
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57053
Title: Integrated storage collectors: all inclusive
Author: Stephanie Banse
Editor: Dr Volker Buddensiek
Year: 2012
Publisher: BVA Bielefelder Verlag GmbH & Co.KG, February 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Sun and Wind Energy - The magazine for Renewable energies
Keywords: Storage collectors
Abstract: Inside their compact housing, integrated storage collectors house the main components of a complete solar system. But the systems differ greatly with regard to construction, capacity and fields of application. S &WE provides an overview.
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 57052
Title: India: Important milestones and well - defined tragets
Author: Markus Grundwald
Editor: Dr Volker Buddensiek
Year: 2012
Publisher: BVA Bielefelder Verlag GmbH & Co.KG, February 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Sun and Wind Energy - The magazine for Renewable energies
Keywords: Solar power, wind power
Abstract: India ' s government plans to fight the energy shortages in the country with solar and wind power. Its "National Solar Mission" promotes projects with up to 20 GW by 2022, and experts believe that wind turbines with an annual 3 to 5 GW could go online.
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None