Design and Development of a Decision Support System for Safety Management of Rotary Pump Systems

Increasing technological advancement and complexity have made it necessary to develop more effective approaches to safety, reliability and quality. This paper presents the design and development of decision support system for safety management of rotary system using computational intelligent techniques. The rotary system considered for this research paper is centrifugal pumping system. This paper presents the application of Neural Network approach for fault detection and fuzzy logic approach for fault diagnosis in centrifugal pumping system. This paper highlights the development of decision support system integrating all the subsystem for a real-world application of computational intelligent techniques to solve a complex problem, which contributes to the prevention of accidents and preparation for emergency response. The results are compared and the conclusions are presented which demonstrate the possible application of industrial use

Colouring matter of the flowers of Hibiscus cannabinus: constitution of cannabiscetin

The colouring matter of the flower petals of Hibiscus cannabinus consists mostly of the glucoside cannabiscitrin along with small quantities of the corresponding aglucone cannabiscetin. The properties and reactions of these two substances are described along with those of some of their derivatives. Cannabiscetin forms a hexaacetate and a hexamethyl ether. It is a flavonol exhibiting similarities with gossypetin and herbacetin particularly in regard to alkali colour reactions and gossypetone reaction. It yields gallic acid on being subjected to alkali fission, its methyl ether producing trimethyl gallic acid. It is, therefore, concluded to be 3:5:8:3':4':5' hexahydroxy flavone

Production, Capacity and Workforce Planning: A Mathematical Model Approach

In the era of globalization, integrated planning for production, workforce, and capacity is the key factor for attaining success in any industry. This paper provides a mathematical model to determine the best possible combination of required capacity, workforce, and lot size for a multi-product, multi-stage, and multi-model production system. The model provides a blueprint of a detailed workforce distribution plan to optimize the available capacity and determine the ideal lot size based on the ways (i.e. tray/trolley) of handling material to control the space required for setup and floor area. This model uses linear programming to reduce the manufacturing cost. A real-world numerical illustration proves the competency of this model, which - for an industry - serves as a practical guide to achieve the best combination of capacity, workforce, and lot size

Chemical components of Indian Tulip (Thespasia populnea) flowers

A sample of the flower-petals of Thespasia populnea is found to contain populnin (0·33%), populnetin (0·07%) and herbacetin (mostly as its glucoside, 0·03%). The proportions vary with different samples depending on seasonal and other factors. Besides these three yellow pigments, a colourless phenolic compound called populneol is also present (0·16%). Populnetin seems to be a new tetrahydroxy flavone and populnin is its monoglucoside

Geometrical inversion in the acids derived from the coumarins Part VI. The behaviour of the acids derived from 4-methylcoumarins

The action of alkali on a number of coumarins with methyl groups in the 4-position has been studied in detail. Each of them yields readily only one acid which, though fairly stable, has the property of undergoing change into the corresponding coumarin under the action of heat and dehydrating agents. The acids, however, cannot be converted into stabler isomers by methods which are definitely effective in converting cis into trans acids. The methyl ethers of the acids are easily obtained by methylating the acids or the original pyrones in the presence of alkali in an aqueous alcoholic medium. Their properties are those of ethers of the trans acids since they cannot be converted into isomeric compounds by methods which are definitely successful in converting cis into trans ethers. It is therefore concluded that the acids and their ethers derived from 4-methylcoumarins are trans compounds. The comparatively ready formation of these acids and their ready conversion again into the coumarins are explained on the basis of the tautomeric mechanism which renders the geometrical inversion very facile