Logixpro Based Scada Simlations Model for Packaging System in Dry ICE Plant

Supervisory Control and Data Acquisition (SCADA) systems control and monitor industrial and critical infrastructure functions, such as electricity, gas, water, waste, railway, and traffic. The main objective of this work is to develop SCADA simulation model for packaging system in dry ice plant. Dry ice is an important refrigerant for keeping foods cold and preventing bacterial growth during shipment. Dry ice used for cooling or freezing foods must be very clean and considered food grade to ensure that food it may touch will not be contaminated. Some recent developments for its use include using the pellets in blasting or cleaning and its increasing use in transporting medical specimens, including hearts, limbs, and tissues, for reattachment and transplantation. The manufacturing process of dry ice has not changed significantly in many decades and is a relatively simple process of pressurizing and cooling gaseous carbon dioxide. But because of its growing demand, packaging becomes vital. An attempt has been made to develop and automate LOGIXPRO based SCADA simulations for dry ice plant to improve packaging and extensively reduce operating labor costs

Approach to Manage Resources in Linux

Abstract:-The paper reviews of research are an effort to develop a resource management framework for Linux. The framework consists of a basic infrastructure that allows resources such as CPU, Memory, Disk I/O to be controlled and monitored. It investigates the development of resource management, the alternative solutions proposed and the challenges faced for developing such a framework The paper describes the most essential concepts, such as an infrastructure, controllers, feedback and monitoring of resources. Each resource controller has its own set of problems to solve. Since the work is being done for a large community of Linux users, the addition of a new feature such as this, should not impact existing users or users who are not interested in using resource management. The paper looks at two commonly used resources, CPU and memory. The resource control and monitoring mechanisms developed for them is described in great detail in two separate chapters devoted to the

A numerical treatment of unsteady three-dimensional hydromagnetic flow of a Casson fluid with Hall and radiation effects

The study of the unsteady magnetohydrodynamic three-dimensional radiative flow of a viscous incompressible electrically conducting Casson liquid along a stretching surface including the effects of Hall current is presented in this article. The fluid flow model consists of time-dependent partial differential equations which are highly non-linear. Similarity transformations are utilized to obtain ordinary differential equations in similarity form. Further, a numerical approach, namely spectral quasilinearization method (SQLM), is used to solve resulting highly nonlinear ordinary differential equations. A detailed analysis is carried out to study the influences of significant parameters, such as Casson liquid parameter, Hall current parameter, magnetic parameter, unsteadiness parameter, radiative parameter, on the profiles’ of the velocity field and temperature field. The behavior of emerging quantities of engineering interest such as skin friction coefficient and the Nusselt number is also studied. Fluid flow model as presented in the paper finds applications in silicon suspensions, blood flow, polymer engineering, and printing industry. Keywords: Casson fluid, Hall effect, Radiation, Stretching surface, Spectral quasilinearization metho

Electrocatalytic behaviour of self-assembled Cu-chitosan/f-MWCNT on glassy carbon electrode for detection of erythromycin in various samples

Although antibiotics are class of compounds that are administered to fight bacterial infections in human and animals, its abuse is ensuing its occurrence in natural resources producing drug resistant strains, which in turn affect human health. Therefore, it is important to develop rapid and effective detection techniques for such antibiotics which are contaminating various natural resources. In this study, a novel electrochemical sensor was developed for determination of one of the most used macrolide antibiotic “Erythromycin” based on self- assembled cu-chitosan/f-MWCNT modified glassy carbon electrode. The negatively charged f-MWCNT holds the positively charged chitosan and Cu2+ ions, leading to formation of Cu-chitosan/f-MWCNT/GCE. FE-SEM, FT-IR, EDS as well as electrochemical methods such as CV, DPV and EIS were used to characterize formation of Cu-chitosan/f-MWCNT/GCE at every step of fabrication. From thermo-gravimetric analysis the composite was found to be stable up to 120 °C and further heating results in breakdown of the skeletal structure between 300 °C to 500 °C. Results from Cyclic voltammetry and electrochemical impedance spectroscopy indicated that after modification, the value of charge transfer resistance (Rct) decreased, and the electron transfer kinetics increased, significantly. In comparison to bare GCE, the Cu-chitosan/f-MWCNT/GCE displayed excellent electrocatalytic activity for the oxidation of erythromycin, as indicated by an increased oxidation peak current. The differential pulse peak current was linear for erythromycin concentration from 0.5 × 10−6 to 10 × 10−6 and 10 × 10−6 to 150 × 10−6M, with LOD 0.2 × 10−6M. The sensor demonstrated high selectivity, excellent stability, and impressive repeatability, during erythromycin determination. Thus, the proposed sensor demonstrates promising analytical applicability towards erythromycin detection in various samples