sudhanshu mishra - Academia.edu (original) (raw)

Papers by sudhanshu mishra

ABSTRACT Steam curing at atmospheric pressure is one of the techniques for obtaining high early s... more ABSTRACT Steam curing at atmospheric pressure is one of the techniques for obtaining high early strengths in concrete especially in precast concrete production. This technique enables early removal of shuttering and facilitates early vacating of the pre-stressing bed in precast industry providing a major economic advantage as well. It also aids in faster and safer construction as sufficient strength is attained in short period and maintained without any other form of curing. The strength enhancement depends on steam curing cycle. The parameters involved in a steam curing cycle include a delay period, a gradual increase to a temperature where it is to be maintained for a specific curing period followed by gradual cooling. The object of this study is to optimise the steam curing cycle for conventional concrete. For this purpose, a concrete mixture of M 40 grade with water/cement ratio 0.4 was designed and subjected to 3 variable parameters (i.e.) delay period (2 and 4 hours), curing period (6 and 8 hours) and temperature (50, 60 and 70C). The compressive strength of these cubes was measured at 1, 7 and 28 days and compared with cubes subjected to the conventional water curing method. A comparative study between steam curing and conventional curing was carried out. Also, the effects of each of the parameters involved in the steam curing were analysed. From the results, it is observed that the optimum cycle is having a delay period of 4 hours, curing period of 8 hours at a temperature of 60 C. An attempt was also made to understand the vital parameters which affect the compressive strength significantly using Robust Design Engineering methodology.

Steam curing at atmospheric pressure is one of the techniques for obtaining high early strengths ... more Steam curing at atmospheric pressure is one of the techniques for obtaining high early strengths in concrete especially in precast concrete production. This technique enables early removal of shuttering and facilitates early vacating of the pre-stressing bed in precast industry providing a major economic advantage as well. It also aids in faster and safer construction as sufficient strength is attained in short period and maintained without any other form of curing. The strength enhancement depends on steam curing cycle. The parameters involved in a steam curing cycle include a delay period, a gradual increase to a temperature where it is to be maintained for a specific curing period followed by gradual cooling. The object of this study is to optimise the steam curing cycle for conventional concrete. For this purpose, a concrete mixture of M 40 grade with water/cement ratio 0.4 was designed and subjected to 3 variable parameters (i.e.) delay period (2 and 4 hours), curing period (6 ...

Ssrn Electronic Journal, Mar 10, 2010

Ssrn Electronic Journal, Sep 11, 2007

Most of the studies relating to estimation of joint production functions have noted two difficult... more Most of the studies relating to estimation of joint production functions have noted two difficulties: first that allocation of inputs to different outputs is not known, and the second that a method of estimation cannot have more than one dependent variable, which necessitates construction of a composite output transformation function. This study has conducted some simulation experiments on joint estimation of the CES, the Transcendental and the Nerlove-Ringstad functions. Allocation parameters of inputs across the products have been introduced. Estimation has been done jointly, but without constructing a composite macro production function or an output transformation function. We use nonlinear least squares based on the Differential Evolution method of global optimization that permits fitting multiple production functions simultaneously.

Mpra Paper, 2006

As it is well known, the problems of the existence of global order, its integrity, stability, eff... more As it is well known, the problems of the existence of global order, its integrity, stability, efficiency, etc. emerging at a collective level from the selfish nature of individual human beings have been long standing. The laws of development of institutions, formal or informal that characterize 'the settle habits of thinking and acting at a collective level', have been sought in this order. visualized the global system arising out of individual selfish actions. In particular, Adam Smith (1759) postulated the role of invisible hand in establishing the harmony that led to the said global order. The neo-classical economists applied the tools of equilibrium analysis to show how this grand synthesis and order is established while each individual is rational and selfish. The postulate of perfect competition was felt to be a necessary one in demonstrating that. However, Alfred Marshall limited himself to partial equilibrium analysis and, thus, indirectly allowed for the role of the invisible hand (while general equilibrium economists -Leon Walras, Kenneth Arrow, Gerard Debreu and John Nash, etc -have held that the establishment of order can be explained by their approach). Yet, Thorstein Veblen (1898, 1899) never believed in the mechanistic view and pleaded for economics as an evolutionary science. Friedrich von Hayek (1944) believed in a similar philosophy and held that locally optimal decisions give rise to the global order and efficiency. Later, Herbert Simon (1982) postulated the 'bounded rationality' hypothesis and argued that the hypothesis of perfect competition is not necessary for explaining the emergent harmony and order at the global level. Elsewhere, Ilya Prigogine (1984) demonstrated how 'order' emerges from 'chaos'.

Ssrn Electronic Journal, May 28, 2012

ABSTRACT The present study devises a computational scheme (and develops a FORTRAN 77 computer pro... more ABSTRACT The present study devises a computational scheme (and develops a FORTRAN 77 computer program) that may be appropriate to construct Pena’s DP2 (ordinal) synthetic indicator (Z) from the partial indicators (X) all of which are ordinal (ranking scores). An attempt has also been made to empirically apply the method (and the computer program) to obtain an ordinal synthetic indicator from a given ordinal data set.

Ssrn Electronic Journal, 2007

This paper aims at locating the practice of micro-credit system into a larger theoretical canvas ... more This paper aims at locating the practice of micro-credit system into a larger theoretical canvas of economic theory and philosophy. A systems theoretic approach has been adopted. Emergence of the 'excluded' class has been explained with the help of the theory of feedback. Individuals have been assumed to be myopic, local optimizer and bounded rational. In this context, the empirical experiences have been viewed and assessed as to their outcomes.

Ssrn Electronic Journal, Feb 20, 2010

It is also believed that JIFs should follow the Bradford (or Pareto) distribution, although, foll... more It is also believed that JIFs should follow the Bradford (or Pareto) distribution, although, following the arguments of Tol (2009), JIFs are subject to the Mathew effect and, therefore, their distribution would have the tail thicker than that of the Bradford (Pareto) distribution. JIF distributions are always asymmetric and non-mesokurtic. Mishra found that in case of most of the major discipline groups (such as biology, chemistry, economics and statistics, engineering, physics, psychology and social sciences) Burr-XII, Dagum, or Johnson SU distribution are best fit to log 10 (JIF) data for 2006.

Application of Multiobjective evolutionary algorithms (MOEAs) in diversified domains has gained p... more Application of Multiobjective evolutionary algorithms (MOEAs) in diversified domains has gained popularity in wide area ranging from engineering and computer science to ecology, sociology and medicine field. From these diversified application areas of evolutionary algorithms, computational finance constitutes a very promising field. The use of evolutionary algorithms for solving multi-objective optimization problem emerges as a potential field of research in recent years. This paper deals with application of MOEAs for different problems in computational finance. Different applications are explained briefly and exhaustive simulation study has been carried out for one particular application i.e. investment portfolio optimization. In this paper the Portfolio optimization is solved using two different multi-objective algorithms SPEA2 and NSGA-II. Their performances have been compared in terms of Pareto fronts, the delta, and C and S metrics. Index Terms-Multi-objective optimization problem, Pareto-optimal solutions, Pareto Front, Global optimization, Non-dominated shorting.

Ssrn Electronic Journal, 2006

Page 1. Electronic copy of this paper is available at: http://ssrn.com/abstract=946123 [Working P... more Page 1. Electronic copy of this paper is available at: http://ssrn.com/abstract=946123 [Working Paper : SK Mishra 2006] Fitting an Origin-Displaced Logarithmic Spiral to Empirical Data by Differential Evolution Method of Global Optimization SK Mishra Dept. ...

Ssrn Electronic Journal, May 11, 2008

Quality of higher education is a multi-dimensional concept. It lies in effectiveness of transmitt... more Quality of higher education is a multi-dimensional concept. It lies in effectiveness of transmitting knowledge and skill; the authenticity, content, coverage and depth of information; availability of reading/teaching materials; help in removing obstacles to learning; applicability of knowledge in solving the real life problems; fruitfulness of knowledge in personal and social domains; convergence of content and variety of knowledge over space (countries and regions) and different sections of the people; cost-effectiveness and administrative efficiency. Information technology has progressed very fast in the last three decades; it has produced equipments at affordable cost and it has now made their wider application feasible. This technology has made search, gathering, dissemination, storing, retrieval, transmission and reception of knowledge easier, cheaper and faster. Side by side, a vast virtual library vying with the library in prints has emerged and continues growing rapidly. One may hold that the elibraries are the libraries of tomorrow when the libraries in prints will be the antiques or the archival objects of the past. This paper discusses in details how information technology can be applied to enhance the quality of higher education at affordable cost. It also discusses the major obstacles to optimal utilization of information technology and measures to remove them.

This study has presented data relating to human development in Nagaland and made an attempt to ob... more This study has presented data relating to human development in Nagaland and made an attempt to observe regularities in the same that may be meaningful for devising development policies. The findings indicate that per capita income, human development index and gender-related development index are only poorly correlated with the health indicators such as IMR, IMRM and IMRF. Only the measures of educational attainment are appreciably correlated with PCY, HDI and GDI. The paper concludes that the reliability of data reported by a socio-economic system is dependent on the level of development of the system. Underdeveloped socio-economic systems report highly unreliable data. This is not only regarding the figures of income; this is also true of the figures on measures of attainment in matters of health and education. Official data on these variables are thrown up by a system that is administratively motivated and unsupervised with regard to their economic and developmental meaning. Use of such data, whether they pertain to income or any other measure of development, is not dependable for policy decisions meaningful to fostering development.

Ssrn Electronic Journal, Jul 19, 2013

The present paper intends to bring out the position of the North Eastern States vis-à-vis the oth... more The present paper intends to bring out the position of the North Eastern States vis-à-vis the other states of India in matters of prosperity on the basis of the most recent available as well as comparable data compiled from secondary sources. Development or prosperity encapsulates and represents a multidimensional connotation. To capture the multidimensionality of development, this paper visualizes eight aspects of development, namely (i) physical infrastructure, (ii) social or institutional infrastructure (ii) industrial performance (iv) service sector and openness of the region, (v) human development, (vi) employment of the human resources, (vii) privatization of industry and investment and (viii) public efforts expressed in terms of govt. expenditure to facilitate promotion, maintenance and governance of development activities. Applying the Principal Component Analysis the study measures the indices of prosperity and rank of different states accordingly. The findings reveal that although overall infrastructure is unsatisfactory in the entire northeast, the state of Tripura has done commendably well with respect to industrialization and Assam has done well in privatization. In other aspects of development there is a mixed scenario mainly due to rigidities, gaps, and imbalances in priorities and the efforts made to promote different aspects in coordination with each other. Success in achievement in human development in some states is mostly due to the contributions made by the missionaries and easy flow of funds from the Centre. Impact of globalization is unobservable and privatization is at the back end. Private investment from within the region is not coming up and investment from outside is not encouraged due to protectionist attitude. Two important factors such as land and labor that are crucial to private investment are the major stumbling block in the region because of prevalent land laws and the so-called problems associated with migration of laborers from outside the region.

Optimization, Mar 20, 2007

Rueda and Hanson have given sufficient optimality criteria for a nonlinear programming problem by... more Rueda and Hanson have given sufficient optimality criteria for a nonlinear programming problem by introducing pseudo-type I and quasi-type I functions. Recently Hanson defined second order type-I functions. In this paper, second order pseudo-type I, second order quasi-type I, and their natural generalizations are defined and applied to second order duality results for several mathematical programs.

In this paper we construct thirteen different types of composite indices by linear combination of... more In this paper we construct thirteen different types of composite indices by linear combination of indicator variables (with and without outliers/data corruption). Weights of different indicator variables are obtained by maximization of the sum of squared (and, alternatively, absolute) correlation coefficients of the composite indices with the constituent indicator variables. The Differential Evolution method has been used for global optimization. Seven different types of correlation are used: Karl Pearson, Spearman, Signum, Bradley, Shevlyakov, Campbell and modified Campbell. Composite indices have also been constructed by maximization of the minimal correlation. We find that performance of indices based on robust measures of correlation such as modified Campbell and Spearman, as well as that of the maxi-min based method, is excellent. Using these methods we obtain composite indices that are autochthonously sensitive and allochthonously robust. This paper also justifies simple meanbased composite indices, often used in construction of human development index.

Meghalaya, the abode of clouds, is one of the smallest states in India having a geographical area... more Meghalaya, the abode of clouds, is one of the smallest states in India having a geographical area of 22,429 sq km along with a forest cover of 9,496 km². The state is endowed with gift of nature such as lofty mountain ranges with interplay of lush green valley, cascading rivers, sprawling water bodies, waterfalls, caves, and living root bridges. Not only is the state having national parks and wildlife sanctuaries it is an ideal habitat for flora and fauna with a pleasant and bracing climate. The state has over 100 tourist spots. Because of her natural assets, ethnic diversity and the societal ethos, tourism holds high potential in the state. The state government though has taken a number of steps to improve the tourism sector yet it is at the nascent stage and has a long way to develop. Air and road connectivity, infrastructural facilities at tourist sites in terms of accommodation, transport, banking including credit card use, drinking water, sanitation, health care, etc is either lacking or not developed or deplorable. Over and above of all these, tourists do not often find themselves at ease with the local public. The workforce in the transportation and hospitality sector are yet to be sensitized regarding professional ethos, decorum and visitor-friendly courtesy.