Informatics Publishing Limited

S. Jaireth ¹, A. K. Sen ², O. P. Varma ²

Affiliations
1 Gold Research Group, Geology Department, James Cook University, Townsville, AU
2 Department of Earth Sciences, University of Roorkee, Roorkee, IN

Abstract

The Sung Valley carbonatite complex of Cretaceous age has a core of serpentinized peridotite rimmed by pyroxenite. The complex is intruded by small- to medium-sized bodies of uncompahgrite, ijolite, syenite and carbonatite. The carbonatites occur as stocks, lenses, dykes and veins. Apatite grains in the apatite-magnetite sovite are characterized by three varieties of apparently syngenetic primary inclusions: The type S (solidified) inclusions contain highly birefringent and anisotropic solids along with some gas and liquid; the co-existing type F (fluid) inclusions are of two types-low to moderate salinity gas-liquid inclusions (gas= 15 to 35% by volume) and high salinity gas-liquid inclusions with one or more daughter minerals (halite, sylvite, carbonates). Type S inclusions homogenize into a relatively viscous, melt-like liquid at temperatures between 740 and 806°C whereas type F inclusions homogenize into a liquid phase at temperatures between 177 and 488°C. The large variation in homogenization temperatures between type S and type F inclusions and the difference in their composition are interpreted to be the result of a liquid immiscibility between a volatilerich carbonate melt and a saline aqueous fluid, though contribution of necking down of some original inclusions in generating clusters of type S and type F inclusions cannot be ruled out completely.

Keywords

Carbonatite, Apatite, Fluid Inclusions, Liquid-Immiscibility, Sung Valley.

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Ravi K. Saini ¹, G. J. Chakrapani ¹, A. K. Sen ¹

Affiliations
1 Department of Earth Sciences, Indian Institute of Technology, Roorkee - 247 667, IN

Abstract

The geochemical characteristics of groundwater in Saharanpur city of Uttar Pradesh have been studied with a set of fifty water samples representing shallow groundwater of the area. The samples were collected during January and April 2003 which represent a season not characterized by excessive precipitation or evaporation. The samples were analyzed for various water quality parameters such as pH, electric conductivity, total dissolved solids, calcium, magnesium, sodium, potassium, bicarbonate, sulphate and chloride. Five groundwater samples were analyzed for Sr isotopic composition. The water is mostly Ca-Mg-HCO₃ type and is derived from the carbonate lithology. A few rainwater samples were also analyzed. Chemical weathering process is the dominant factor in the overall water chemistry, however for some parameters like SO₄, industrial effluents and/Or atmospheric precipitation could be a major source. Dominance of carbonate lithology on water chemistry is also observed by the low Sr isotopic ratios (⁸⁷Sr/⁸⁶Sr) in waters. The high carbonate contents could lead to scale formation which is a major problem in the region for domestic and industrial uses of water.

Keywords

Groundwater, Geochemical Study, Saharanpur, Uttar Pradesh.

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N. Harijan ¹, A. K. Sen ¹, S. Sarkar ², J. D. Das ³, D. P. Kanungo ²

Affiliations
1 Department of Earth Sciences, IIT Roorkee, Roorkee - 247 667, IN
2 Central Building Research Institute, Roorkee - 247 667, IN
3 Earthquake Engg., IIT Roorkee, Roorkee - 247 667, IN

Abstract

Sung Valley Carbonatite Complex (SVCC) of the Shillong Plateau is one of the important known carbonatite complexes in India. This complex has intruded the sub-vertical beds of Shillong Group rocks and occur along the major N-S trending pre-existing Um Ngot fault. Topographically, the carbonatite intrusion is marked by a prominent semi-circular depression formed due to weathering of soft nature of the rocks present in the complex. This characteristic is unique in relation to carbonatite and related rocks with the surrounding relatively hard lithological formations. This < feature is prominently displayed on satellite image. The drainage network of the study area is found to be strongly controlled by structure and lithology. The present study is an attempt towards morphotectonic interpretation of the SVCC and adjoining region using satellite imagery and spatial data integration in GIS environment.

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A. K. Sen ¹, E. J. Sanchis ²

Affiliations
1 St. Francis Institute of Technology, Borivli, Mumbai-400103, IN
2 St. Francis Institute of Management & Research, Mumbai-103, IN

Abstract

In the present competitive world, the institutions offering management education will survive only when they will adopt different Quality Improvement (QI) strategies. Most of the institutions in India and world over have adopted successfully quality improvement (QI) strategies like ISO 9000, Total Quality Management (TQM), Benchmarking and Business Process Reengineering (BPR).

Recently six-sigma strategy has been successfully adopted by industries and business world over for quality improvement. Six-sigma is basically a business strategy and systematic methodology, use of which leads to breakthrough in profitability through quantum gains in service quality and customer satisfaction.

In the light of the above, this work presents an investigation in the implementation of six-sigma approach for improving the quality of the management education in India. To increase number of successful graduates from the institutes, the role of six-sigma members such as executive leaders, champions, master black belts and green belts are introduced. The functions of each member are defined and implemented according to the sixsigma life cycle.

The investigation is centered on the detailed study for improving the student result in the university examination, which is one of the important indicators of quality education. In this competitive, globalised wireless world any institute can grow only when they will continuously evaluate their products - the student and the process of making them marketable.

So a study of the process of making the quality product has been taken up using Quality Function Deployment (QFD) chart. The existing product and process or designing new product or process requires a lot of time. So, QFD software has been used for this purpose. The software supports the graphical output of customer competitive evaluation and technical competitive evaluation in addition to providing the demanded weights for the customers' requirements and functional weights for the technical requirements or control parameters. It also provides an indication for the major requirements/ demands of the process improvements.

The six-sigma approach has increased the sigma level significantly. The results are encouraging and the six-sigma approach leads to a successful methodology in encouraging the number of successful candidates with improved quality in management education.

Keywords

Six-Sigma, Quality Function Deployment (QFD), Customer Requirement, Technical Requirement, Education Process, Result Improvements.

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A. K. Sen

Abstract

A year has gone round since my last Presidential Address. It will be remembered, I then invited pointed attention of yourselves as also of the authorities concerned to the fact that the major problem before the engineers and their professional bodies in this country was resting on the Government of India's approach to the question of granting due status to the engineering personnel with or without University Degrees or Diplomas vis-a-vis their professional institutions at the first instance and, secondly, to the policy for incentive management of indigenous talents, indigenous research and indigenous methods.

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A. K. Sen ¹

Affiliations
1 Calcutta Corporation, IN

Abstract

Friends,

I consider it a great honour to have been elected President of our Association-a chair which has stood adorned by quite talented trailblazers of our profession in this country. My embarrassment therefore at the honour you have done to me is not little.

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