Department of Management

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Parallel iterative algorithms for solving fundamental mode neutron flux distribution
(Elsevier, 1991) Rajagopalan, Shekhar
Issues relating to implementing iterative procedures, for numerical solution of neutron diffusion equations on a distributed parallel computing system, are discussed. Preliminary investigations for a reactor modelled on a 128 × 128 rectangular grid show that a speed-up of about 3.85 is achievable on a fourtransputer pipeline network.
Microwave-assisted solvent-free synthesis of 3-[(4-substituted piperazin-1-yl)alkyl] imidazo[2,1-b][1,3]benzothiazol-2(3H)-ones as serotonin3 (5-HT3) receptor antagonists
(Avoxa, 2005-06) Mahesh, R.
A series of novel 3-[(4-substituted piperazin-1-yl)alkyl]imidazo[2,1-b][1,3]benzothiazol-2(3H)-ones were prepared by microwave irradiation using alumina as solid support and also by a conventional method. The compounds were characterized by spectral data and the purity was ascertained by microanalysis. The synthesized compounds were evaluated for 5-hydroxytryptamine3 antagonisms in a longitudinal muscle-myenteric plexus preparation from guinea pig ileum against the 5-hydroxytryptamine3 agonist, 2-methyl-5-hydroxytryptamine. Among the test compounds, 3-[2-(4-methylpiperazin-1-yl)ethyl]imidazo[2,1-b][1,3]benzothiazol-2(3H)-one (3b) showed most favorable 5-hydroxytryptamine3 antagonism (pA2 6.7) in the isolated guinea pig ileum.
A model for adoption of successive generations of a high technology product
(Inder Science, 2007) Chanda, Udayan
Modelling the new product sales growth and forecasting future sales has been an important area of research in Marketing Science. Models have been proposed to map the consumer buying behaviour against explanatory variables such as price, promotional effort, quality, time, etc. In comparison, high technology products have received less attention. These products usually have many generations, each succeeding generation being an improvement over the previous one. This paper discusses some well-known models in this area and also proposes a new one. The new model uses the relationship between the repeat purchasers and the new purchasers in the overall diffusion of a new technology over multiple generations, by separately identifying the two types of adopters. This model has been validated on sales-data and has also been compared to an established model.
Understanding consumer’s attitude towards retail store in stockout situations
(Emerald, 2007) Rani, Leela
This study aims to examine empirically how consumers’ attitude towards retail stores gets affected by situational, consumer, store and product characteristic variables when they face outof-stock situations.
Assessing the Neuronal Serotonergic Target-based Antidepressant Stratagem: Impact of In Vivo Interaction Studies and Knockout Models
(Bentham Science, 2008) Mahesh, R.
Depression remains a challenge in the field of affective neuroscience, despite a steady research progress. Six out of nine basic antidepressant mechanisms rely on serotonin neurotransmitter system. Preclinical studies have demonstrated the significance of serotonin receptors (5-HT1-3,6,7), its signal transduction pathways and classical down stream targets (including neurotrophins, neurokinins, other peptides and their receptors) in antidepressant drug action. Serotonergic control of depression embraces the recent molecular requirements such as influence on proliferation, neurogenesis, plasticity, synaptic (re)modeling and transmission in the central nervous system. The present progress report analyses the credibility of each protein as therapeutically relevant target of depression. In vivo interaction studies and knockout models which identified these targets are foreseen to unearth new ligands and help them transform to drug candidates. The importance of the antidepressant assay selection at the preclinical level using salient animal models/assay systems is discussed. Such test batteries would definitely provide antidepressants with faster onset, efficacy in resistant (and co-morbid) types and with least adverse effects. Apart from the selective ligands, only those molecules which bring an overall harmony, by virtue of their affinities to various receptor subtypes, could qualify as effective antidepressants. Synchronised modulation of various serotonergic sub-pathways is the basis for a unique and balanced antidepressant profile, as that of fluoxetine (most exploited antidepressant) and such a profile may be considered as a template for the upcoming antidepressants. In conclusion, 5-HT based multi-targeted antidepressant drug discovery supported by in vivo interaction studies and knockout models is advocated as a strategy to provide classic molecules for clinical trials.
Multi-Objective facility layout problem: A state-of-the-art review paper
(ICFAI, 2008) Matai, Rajesh
It has been over two decade since Rosenblatt (1979) published his work on multi-objective facility layout problem (MFLP). Since then, there have been modifications/ improvements to his work. Many other models to solve MFLP have also been proposed. Similarly, many heuristics and iterative procedures have been proposed to solve multi-objective facility layout problem. However, no comprehensive review work on multi-objective facility layout problem has been undertaken so far. In this paper we review the different works of research that have been carried out in the area of multi-objective facility layout problem particularly and discuss the future research directions.
Modelling innovation and imitation sales of products with multiple technological generations
(Elsevier, 2008) Chanda, Udayan
Majority of consumer durables have multiple technological generations. Each succeeding generation offers some innovative performance enhancements, feature additions etc. distinguishing itself from the past releases. Therefore the consumer's attitude towards each of them can be very different. There is a need to understand consumer psychology and have accurate measure to predict the adoption process of new technology. Mathematical models have proved to be ideal tools to explain the past purchasing-behavior and also for forecasting. This paper focuses on studying the relative changes of diffusion parameters for both first time purchasers and upgraders along with developing a more general sales model for multiple technology generation products. The proposed model explicitly identifies different groups of purchaser viz. first timers and repeaters (upgraders).
A study of the diffusion parameters and marketing decision variables for a family of technological innovations
(Inder Science, 2008) Chanda, Udayan
Business organisations introduce new products in the market to beat competition and increase profit. For high-technology products, continuous innovations promise better performance, feature enhancements and quality improvement. Often, consecutive technology generations compete in the market, which calls for synergistic decision-making on marketing variables. At around the time of its introduction, the time path of prices for two competing technologies can show interesting patterns vis-a-vis their sales. It is important to understand the influence of marketing variables on consumer psychology to predict the adoption process of new technology. This paper focuses on studying the relative changes in diffusion parameters and marketing decision variables through sales models developed for multiple-generation products
A Model for First and Substitution Adoption of Successive Generations of a Product
(ACTA Press, 2008) Chanda, Udayan
Modelling the new product sales growth and forecasting the future sales has been an important area of research in Marketing Science. Models have been proposed to map the consumer buying behaviour against explanatory variables like price, promotional eﬀort, quality, time, etc. In comparison high technology products have received less attention. The proposed model uses the relationship between the repeat purchasers and the new purchasers in the overall diﬀusion of a new technology over multiple generations, by separately identifying the two types of adopters. It also includes the adopters skipping an intermediate generation while buying two diﬀerent generation products. The proposed model imbibes the features of some well- known model and has been validated on historical data.
Consumer reactions to retail out-of-stock: replication into new contexts
(Inder Science, 2008-04) Rani, Leela
This study empirically examines the impact of situational, consumer, store and product characteristic variables on consumers' behavioural reactions in out-of-stock situations in retail. A survey method for data collection was used with a sample of 1,207 retail customers in India's unorganised retail sector across five product categories in Varanasi, India. Results showed that 11 out of 13 independent variables had a significant impact on at least one of the three behavioural responses considered. As the data was collected only for five product categories and for unorganised retail setting, findings are not generalisable beyond these limitations. Empirical research like this helps to develop an understanding about the consumer behaviour which differs widely across settings. It is one of the first studies in an unorganised retail in India. Study provides crucial insights to the retailers by identifying independent variables that must be considered while designing their operations and strategies to fight out-of-stock. Implications for the retailers and the future research are discussed.
Dynamic Optimal Control Policy in Price and Quality for High Technology Product
(World Scientific, 2008-04) Chanda, Udayan
This paper studies optimal control policies of quality level and price for the introduction of a new product with two competing technology generations in a dynamic environment and also proposes a new model in this regard. Lots of work has been done to study the optimal policies pertaining to explanatory variables like price, promotional effort, quality, time etc. In comparison high technology products have received less attention. The proposed model is a combination of diffusion models and the cost function, which is capable of estimating the future profit trends. The new model uses the relationship between the repeat purchasers and the new purchasers in the overall diffusion of a new technology over multiple generations, by separately identifying the two types of adopters.
Evaluating performance of national R&D organizations using integrated DEA‐AHP technique
(Emerald, 2008-06) Tikoria, Jyoti
The purpose of this paper is to evaluate and compare the performance of national R&D organizations in India in terms of their relative efficiencies using a multiple output measurement criteria incorporating the quality of the output measures.
Word of expertise to solve SCM issues
(SCMS, Noida, 2009) Sharma, Satyendra Kumar; Bhat, Anil Kumar
Su p p l y C h a i n M a n a g e m e n t i s a t t r a c t i n g t h e a t t e n t i o n o f a c a d e m i c i a n s a n d p r a c t i t i o n e r s . A l l t h r e e f u n c t i o n s i . e . m a n u f a c t u r i n g s u p p o r t , p r o c u r e m e n t a n d p h y s i c a l d i s t r i b u t i o n a r e t a k e n a s a s i n g l e a n d u n i f i e d f u n c t i o n . D i f f e r e n t c o m p a n i e s a r e i n v o l v e d t o p e r f o r m a l l t h e s e f u n c t i o n s a t t h e i r p r e m i s e s a r o u n d t h e w o r l d a t d i f f e r e n t l o c a t i o n s , b u t t h e u l t i m a t e o b j e c t i v e o f a l l s u p p l y c h a i n e n t i t i e s i s d e l i v e r i n g c u s t o m e r d e l i g h t . G l o b a l i z a t i o n , o u t s o u r c i n g e t c , a r e r e s p o n s i b l e f o r i n c r e a s e d d e p e n d e n c i e s a m o n g f i r m s . F i r m s a r e d e p e n d e n t o n e a c h o t h e r f o r t h e i r g o a l a c c o m p l i s h m e n t . Tw o t y p e s o f d e p e n d e n c i e s e x i s t b e t w e e n f i r ms: time dependencies and functional dependencies. This paper examines how the supply chain management solves the s t r a t e g i c i s s u e s m a i n l y r e l y i n g o n l i t e r a t u r e a n d o p i n i o n s o f e x p e r t s i n t h e f i e l d .
Performance measurement of national R&D organisations using analytic hierarchy process: a case of India
(Inder Science, 2009) Tikoria, Jyoti
Evaluating and comparing the performance of different R&D organisations in a homogeneous or heterogeneous group in the fairest way is a very complex and yet challenging task. This paper provides a framework and a system to the national policy makers and the performance monitoring committee for designing a standard multiple performance measurement criteria for evaluating and comparing the performance of national R&D organisations. In this paper, analytic hierarchy process (AHP) technique has been applied to develop the framework of multiple performance measurement criteria, deriving their respective weights and system for comparing the performance of a group of Indian national R&D organisations involved in applied as well as basic research in chemical and botanical sciences. The framework and the system developed have been applied by taking an illustration to evaluate and compare the performance of six national R&D organisations in terms of their benefit-cost ratio.
Dynamic Optimal Advertising Expenditure Strategies for Two Successive Generations of High Technology Products
(World Scientific, 2009) Chanda, Udayan
Advertising plays a very important role in drawing consumer attention to new-products and in encouraging early adoptions. The problem of drawing optimal advertising plans for innovations have therefore has received a lot of attention from marketing managers and researchers. But there is need for further research on problems pertaining to new-products that are part of technological generations. This chapter deals with the determination of optimal advertising expenditure for two-generation consumer durables. The model considers intergenerational diffusion effect and also introduces a framework for modeling innovation diffusion for two competing generations.
A mathematical model for diffusion of products with multiple generations
(Inder Science, 2009-01) Chanda, Udayan
Modelling the new product sales growth and forecasting the future over the product life-cycle has been an important area of research in Marketing. Many models on this topic have also been extended for describing the diffusion of products having multiple technological generations. But factors influencing diffusion of such products are very distinctive and therefore the modelling approach needs to be different. This paper proposes a model that improves upon some well-know models to study the sales growth of successive generation of products. The model has been validated on a sales-data and has also been compared with an established model.
Traveling Salesman Problem: an Overview of Applications, Formulations, and Solution Approaches
(Intechopen, 2010) Matai, Rajesh
The traveling salesman problem (TSP) were studied in the 18th century by a mathematician from Ireland named Sir William Rowam Hamilton and by the British mathematician named Thomas Penyngton Kirkman. Detailed discussion about the work of Hamilton & Kirkman can be seen from the book titled Graph Theory (Biggs et al. 1976). It is believed that the general form of the TSP have been first studied by Kalr Menger in Vienna and Harvard. The problem was later promoted by Hassler, Whitney & Merrill at Princeton. A detailed dscription about the connection between Menger & Whitney, and the development of the TSP can be found in (Schrijver, 1960)
Determining adoption pattern with pricing using two-dimensional innovation diffusion model
(Elsevier, 2010) Chanda, Udayan
Studying the dynamics of the technology diffusions under the key determinants that influence the adoption of a technology across time and/or space into the market is crucial to assess the business case for new technologies. The topic diffusion has been widely studied by researchers from different disciplines, including Sociology, Economics, Psychology and Marketing. However a substantial amount of research has been focused on one dimension: either to examine the individual's adoption of an innovation or to explain the time path of adoption of technologies typically follows an S-shaped curve. The other dimensions of the diffusion of an innovation, has gained less attention. In this paper, we derive a two-dimensional technology diffusion innovation model which combines the adoption time of technological diffusion and price of the technology product. In the proposed model technological adoptions and the role of other dimensions are explicitly taken into consideration by using the classical Cobb–Douglas production function. The model is based on two main assumptions: the rate of adoption growth decreases in price and that there is diminishing returns to time because initial market size is fixed. The proposed model is also validated on a number of datasets and compared with established models. The empirical analysis shows that the model performs better than other one-dimensional diffusion model in terms of parameter estimation and model validity.
Facility Layout Problem: A State-of-the-art Review
(Vilakshan, 2010) Matai, Rajesh
This paper presents a state-of-the-art review work on facility layout problem (FLP). In the past, various review works have been presented but those were mainly focussed on particular aspects of FLP. However, no comprehensive review work covering all issues of FLP has been undertaken so far. In this paper, authors investigate past and current research work that has been carried out in all areas of FLP. In addition, the paper also reviews all mathematical formulations of FLP available in literature and classifies these accordingly into appropriate categories, such as: single-objective FLP, multi-objective facility layout problem (MFLP), Static facility layout problem (SFLP), Dynamic facility layout problem (DFLP), and Stochastic layout problem (SLP). The paper also reports methodologies to solve various formulations of FLP. Finally, it presents literature gaps and directions for future research work in FLP. [ABSTRACT FROM AUTHOR] Copyright of Vilakshan: The XIMB Journal of Management is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Software Release Policy based on Change Point Considering Risk Cost
(VDM Verlag, 2010)
Advances in Science and Technology in the era of globalization, warrant a need to develop new synergies among the techniques used in various disciplines of Mathematical Sciences. The present book highlights developments in varied themes of Information Theory, Coding Theory, Ecology, Reliability, Marketing, Inventory, Queueing Theory, Pattern Recognition, Artificial Neural Networks, Statistical Techniques and Optimization Theory by distinguished researchers. It aims at addressing the key issues pertaining to these topics and will be helpful to Information Theoreticians, Software Engineers, Biologists, Statisticians and Operational Researchers. The book presents new findings which will add to the knowledge of the scientific community for furtherance of research.