Realisations of Quantum GL_p,q(2) and Jordanian GL_h,h'(2)

The quantum group GL_p,q(2) is known to be related to the Jordanian GL_h,h'(2) via a contraction procedure. It can also be realised using the generators of the Hopf algebra G_r,s. We contract the G_r,s quantum group to obtain its Jordanian analogue G_m,k, which provides a realisation of GL_h,h'(2) in a manner similar to the q-deformed case.Comment: 6 pages LaTex, Contribution to Proceedings of "8th International Colloquium on Quantum Groups and Integrable Systems", Prague, June 17 - 19, 199

Spectral irradiance curve calculations for any type of solar eclipse

A simple procedure is described for calculating the eclipse function (EF), alpha, and hence the spectral irradiance curve (SIC), (1-alpha), for any type of solar eclipse: namely, the occultation (partial/total) eclipse and the transit (partial/annular) eclipse. The SIC (or the EF) gives the variation of the amount (or the loss) of solar radiation of a given wavelength reaching a distant observer for various positions of the moon across the sun. The scheme is based on the theory of light curves of eclipsing binaries, the results of which are tabulated in Merrill's Tables, and is valid for all wavelengths for which the solar limb-darkening obeys the cosine law: J = sub c (1 - X + X cost gamma). As an example of computing the SIC for an occultation eclipse which may be total, the calculations for the March 7, 1970, eclipse are described in detail

Validating Hypothetical Surveys Using Binding Public Referenda: Implications for Stated Preference Valuation

This study presents a criterion validity test in which stated choices are compared to subsequent binding referendum votes. The study is distinguished by identical hypothetical and actual choice contexts, and results that show no evidence of hypothetical bias. Results suggest a number of possibilities for amelioration of hypothetical bias.Research Methods/ Statistical Methods,

Analysis of Power Sector in India: A Structural Perspective

The inhibitors to growth in power sector were many—small and big but the main roadblock in the growth path was Government Policy, which made it difficult or rather impossible for a private player to enter. This further aggravated the problem that Indian entrepreneurs didn’t have enough knowledge and experience in developing power projects. To worsen the scenario, the SEBs and other Government Agencies became financially weak to propel any future expansion or growth in the sector. Electricity Act, 2003 was a major step in solving the above underlying problems of the power sector. A whole new system was evolved where private players were invited to be an active participant. The system demanded financial, political and other infrastructural growth—with major requirement in roads and communication. Some of the bold steps taken in the Act were moving generation and distribution out of ‘License Raj’ regime, opening access to national grid and demolishing the ‘Single Buyer’ model. The failure of the huge federal structure and the changing global scenario have forced Government to think of ways to revive this fundamental infrastructure sector. Two of the avenues that government can count on for future growth of this sector is “Midgets or Small Power Plants” and “CDM—Clean Development Mechanism” .Power Sector , India

Particle phase function measurements by a new Fiber Array Nephelometer: FAN 1

A fiber array polar nephelometer of advanced design, the FAN I is capable of in-situ phase function measurements of scattered light from man-made or natural atmospheric particles. The scattered light is measured at 100 different angles throughout 360 degrees, thus providing a potential measurement of the asymmetry of irregularly shaped particles. Phase functions can be measured at 10 to 100 Hz rates and the range of measurable single particle sizes is from 5 micron m to as large as 8mm. For particles smaller than 5 micro m the ensemble average can be measured. The FAN I is microprocessor controlled and the data may be stored on floppy disk or printed out in tabular and/or graphical form. The optical head may be separated from the computer system for operation in field or adverse conditions. Examples of laboratory measured scattering phase functions obtained with the FAN I for spherical particles is given to illustrate its measurement capabilities

Application of Geographic Information System For Irrigation Management

Water plays an important role in crop production. A good irrigation water management system has to be provided to give adequate and timely supply of water to improve the crop production. In order to achieve this, it is necessary to have adequate water source, a good conveyance system, a good distribution system and a strong database to store all the required data. Improved management can be achieved when the study area has been provided with a good database to store the real time data according to the seasons that will help the users and the decision makers to make a firm decision with respect to the management aspect. Visual Basic and GIS can greatly help to achieve efficient water management. The Tanjung Karang Rice Irrigation Project in Northwest Selangor Malaysia was selected for this study and three compartments Sawah Sempadan, Sungai Burong and Sungai Nipah were considered for the study. The Visual Basic program designed in this study with several screens provides unique results based on the water management. The program was designed, tested and the results stored in MS-Access database. This study concentrates on creating an irrigation water management database and providing a user-friendly on-farm decision support system to benefit the farmers and the farm managers. Critical solutions can be achieved by creating a useful database for irrigation management. The designed database can store, edit, update and delete the data records whenever necessary. The GIS user interface for the irrigation system promIses to provide comprehensible results to improve the decision making process in the operation and management of the scheme. MapInfo Professional Software 5.0 was used to digitize the Tanjung Karang study area. The digitized maps were exported from MapInfo to ArcView GIS 3.1 using Universal Translator. ArcView GIS 3.1 was used for analysis and the results shown in the form of thematic maps, tables, graphs and charts to benefit the users and decision makers involve with irrigation water management