Optimal Control Policy of a Production and Inventory System for multi-product in Segmented Market

In this paper, we use market segmentation approach in multi-product inventory - production system with deteriorating items. The objective is to make use of optimal control theory to solve the production inventory problem and develop an optimal production policy that maximize the total profit associated with inventory and production rate in segmented market. First, we consider a single production and inventory problem with multi-destination demand that vary from segment to segment. Further, we described a single source production multi destination inventory and demand problem under the assumption that firm may choose independently the inventory directed to each segment. This problem has been discussed using numerical example

Genetic Component and Character Association for Yield and Yield Component Traits in Bread Wheat (Triticum aestivum L.)

The current research involves the implementation of half diallel crosses between ten genotypes of bread wheat in 2018-2019. The parents and their F1 generation, excluding reciprocals, were then cultivated in the 2019-2020 growing season at the agriculture research farm, School of Agricultural Sciences and Engineering, IFTM University, Lodhipur Rajput, Moradabad (U.P.) and R.B. (PG) College, Mudi, Agra, using a randomized complete block design with three replications. Knowledge of type of gene action controlling target traits and genetic behaviour is a basic principle for designing an appropriate breeding procedure for the purpose of genetic improvement. Hence, the success of any selection or hybridization breeding program for developing varieties depends on precise estimates of genetic variation components for traits of interest which may be additive, dominant and non-allelic interaction effects. Significant genotype means squares and its components (parents and crosses) were obtained for all traits in both locations. Genetic components analysis found that additive (D) and Dominance (H1) was significant in all the traits. The value of mean degree of dominance was greater than additive, indicating availability of over dominance for all the traits. The present investigation revealed that grain yield was positively correlated with days to maturity, plant height, number of effective tillers per plant spike length, number of spikelets per spike, days to 50% heading and yield (q ha-1). Hence, more importance should be given to these traits while exercising selection. Based on the correlation and path studies it was reported that days to ear head emergence, days to maturity, plant height, number of effective tillers per plant, number of spikelets per spike, number of grains per spike, grain yield per plant and 1000 grain weight could be used as important selection traits in order of merit to improve productivity during designing a suitable breeding programme in wheat

Egg production in the threatened seabass, Lates calcarifer (Bloch) along Tuticorin coast, Gulf of Mannar

The total annual potential fecundity of mature Lates calcarifer (n = 47) of 855 to 1,255 mm range along Tuticorin coast in Gult of Mannar was estimated. The lowest fecundity was observed to be 3.85 x 10^ and highest 30.18 x 10'^ eggs. The fecundity was positively correlated with the length and weight of the fish

Evaluation of whey protein concentrate as a functional ingredient on quality of goat milk rasogolla - an Indian dessert

In the literature, a variety of dairy products are made from goat milk; however, information related to the manufacture of rasogolla from goat milk is very scant. During preliminary trials, it was observed that chhena prepared from goat milk was not suitable for the preparation of rasogolla because it has a very soft and sticky body that is difficult to handle. Therefore, this investigation was conducted to formulate an acceptable quality goat milk rasogolla using whey protein concentrate (WPC) as a functional ingredient. Chhena (also known as Indian cottage cheese, a heat- and acid-coagulated indigenous dairy product) was prepared from fresh Surati goat milk (3.5% fat/8.5% milk solids-not-fat (MSNF). Twelve batches of rasogolla were prepared from chhena coagulated at three temperatures viz. 75, 80 and 85⁰C containing WPC at 4 levels (i.e., 0, 0.25, 0.50 and 0.75% w/w of milk). Rasogolla prepared from chhena containing 0.50% WPC in milk  and coagulated at 80°C was preferred the most with respect to all the sensory attributes evaluated. It had significantly (P<0.05) highest sucrose content, i.e., 35.73% and a higher sugar absorption ratio, i.e., 2.63, compared to all the other experimental samples. The composition of drained samples of goat milk rasogolla was as follows: moisture 50.07%; protein 7.04%; fat 6.44%; ash 0.45% and sucrose 35.73%. The pH was 6.34 and acidity was 0.76% lactic acid. Based on the results obtained in this study, a method was developed for the preparation of acceptable quality goat milk chhena and rasogolla

Optimal pricing and promotional effort control policies for a new product growth in segmented market

Market segmentation enables the marketers to understand and serve the customers more effectively thereby improving company’s competitive position. In this paper, we study the impact of price and promotion efforts on evolution of sales intensity in segmented market to obtain the optimal price and promotion effort policies. Evolution of sales rate for each segment is developed under the assumption that marketer may choose both differentiated as well as mass market promotion effort to influence the uncaptured market potential. An optimal control model is formulated and a solution method using Maximum Principle has been discussed. The model is extended to incorporate budget constraint. Model applicability is illustrated by a numerical example. Since the discrete time data is available, the formulated model is discretized. For solving the discrete model, differential evolution algorithm is used

Formulation and Characterization of Fexofenadine hydrochloride Fast Dissolving Tablet by using various Superdisintegrants

In the present work, fast dissolving tablets of fexofenadine HCl were designed with a view to enhance patient compliance by direct compression method. The present work studied the effect of superdisintegrants on release rate of fexofenadine HCl in the form of fast disintegrating tablet. For the present study range of superdisintegrants in their different concentrations, were used. The superdisintegrants used were crosscarmellose sodium, crosspovidone and kyron        T-314. The blends were prepared by direct compression technique. The tablets were evaluated for hardness, thickness, friability, drug content, weight variation and in-vitro drug release studies in pH 6.8. Keywords: Fexofenadine hydrochloride, fast dissolving tablets, crosscarmellose sodium, crospovidone, kyron T-31