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Study of flow through arteries is gaining importance in the recent times due to onset of several cardio-vascular diseases like atherosclerosis (block in artery), aneurysms (bulging of artery), hypertension etc. The application of CFD will be useful in demonstrating the underlying mechanism of flow past the diseased arteries. In the present study, initially an approximate eccentric and concentric 50% stenosed carotid model is generated in ANSYS 12.0 based on patient data obtained from ultrasound Doppler scan. Later the percentage of stenosis is increased to 60%, 70%, 80% and 90% in both the cases. A transient analysis has been performed for several pulse cycles in ANSYS FLOTRAN for various percentage cases. The results obtained from ECN and CCN cases are compared to observe the changes in flow behavior in the downstream of stenosis as compared with normal case. The formation of vortices and flow separation zone in downstream in eccentric case is higher than in concentric case. Comparison of results concludes that, with the increase in severity of stenosis, the flow changes abruptly causing an increase in velocity and WSS at throat region. The simulation results obtained agree well with clinically observed data and available literature.

The Solar and wind energy produce fluctuated output energy when used individually and does not ensure the base size of power continuously required by the center of load. There is a necessity of hybridization of energy sources that is feasible in terms of efficiency and economy. The combination of solar with wind energy is one of the best proven technology either with battery mode or stand alone grid connection. Benefits of utilizing hybrid solar wind turbine are manifold This paper focusses on the designing of hybrid solar wind turbine system for the power generation from solar and wind renewable sources for household purpose in the remote areas that are connected to grid. An investigation is done on the solar and wind energy harness in a required geographic space’s weather data collection of solar radiation and wind speed at respective location from India. Numerical analysis of hybrid solar wind turbine, was conducted with separate standalone system due to the constraint of simulation tool. Simulations of Wind Turbine is done by computational fluid dynamics (CFD) that is found based on velocity of wind. The simulated result which is converted from kinetic form of mechanical energy that converted to electrical energy using analytical formulas. The data for simulation was collected from National thermal power corporation, Ramagundam , Indian Meteorological Department.

Education witnessed great evolution thanks to Technological advances (Raja and Nagasubramani 2018). Although Online learning has many benefits such as flexibility and scalability, many higher education institutions do not opt to it since it was considered less effective than traditional classrooms. The outbreak of COVID19 pandemic and Social distancing measures taken in most countries in the world have revived the need for Online learning and greatly impacted the educational landscape. In this research, we target to study the effectiveness of online teaching through a case study from Middle East College during Spring 2020 semester. A layered approach has been adopted in the form of methodology which could be further elaborated and customized as per the nature and level of module. To this end, assessment of online teaching implementation from both teacher’s point of view and student’s perspective have been accomplished. Challenges will then be analyzed and recommendations in the future will be suggested.

Modern agriculture relies heavily on drip irrigation systems because they effectively distribute water to plant roots, maximising both crop yield and water usage. However, maintaining agricultural output depends on making sure these systems continue to function. In order to provide real-time monitoring and control inside irrigation networks, this article leverages embedded systems technology to investigate the integration of sensor networks for monitoring and fault detection in drip irrigation. Rather than only evaluating the literature, the study attempts to propose a unique sensor network architecture and demonstrate its effectiveness through experimental evaluation. It is determined that defect detection and real-time monitoring are essential for quickly resolving problems and maximising resource use. The suggested architecture makes use of actuators, sensors, embedded systems, and communication protocols that are all thoughtfully placed to gather pertinent data, including readings of soil moisture, temperature, humidity, and pressure. Algorithms for fault detection are designed to examine sensor data and spot irregularities in the irrigation system, allowing for prompt intervention and water-use optimisation. To evaluate how well the suggested sensor network design detects and locates defects, experimental validation in actual agricultural environments is carried out. The importance of sensor networks and embedded systems in improving drip irrigation sustainability and efficiency is highlighted by this study. It highlights the need for more study to address current issues and develop sensor network capabilities especially suited for agricultural applications, and it makes suggestions on possible advantages for agriculture and water management.

In the present work, Banyan and Peepal fibre reinforced hybrid composites are prepared through hand Lay- up technique..The objective of the work is to investigate the hardness and flexural properties of eight varieties of banyan – peepal hybrid composites. The composites include banyan-peepal-banyan-peepal-banyan fibre composite, peepal-banyan-peepal-banyan-peepal fibre composite, banyan-copper-banyan-copper-banyan fibre composite (F1-Cu-F1-Cu-F1), peepal-copper-peepal-copper-peepal fibre composite, banyan-peepal-copper-peepal-banyan fibre composite, peepal-copper-banyan-copper-peepal fibre composite, peepal-banyan-copper-banyan-peepal fibre composite, and banyan-copper-peepal-copper-banyan fibre composite . Each of these composites is prepared in 00 orientations (i.e., fibres parallel each other), 450 (i.e., fibres at 450 to each other) and 900 orientations (i.e., fibres perpendicular to each other). It is observed from the results that, the hardness of F2-Cu-F1-Cu-F2 composite with 900 orientation is high and that of F1-F2-F1-F2-F1 composite with 450 orientation is low. It is also noticed that, the bending strength of F2-Cu-F1-Cu-F2 composite with 00 orientation is high and that of F2-F1-F2-F1-F2 composite with 450 orientation is low, and as far as the composites with 90⁰ orientations are considered, no results are obtained. Further it is noticed that, the hardness of all the eight composites with 90˚ orientation is found to be high compared to their remaining orientations and also the hardness of all the composites with 45˚ orientation is low compared to their 0˚ and 90˚ orientations

Highly hydrophilic, perfectly smooth and spherical microspheres have been synthetized. These non-biodegradable microspheres absorb water in varying degrees and can be injected easily through microcatheters due to their slippery and compressible characteristics. The material was successfully used for embolization of 4 vascular intracranial tumours and 2 spinal vascular lesions in the cervical region, by superselective delivery. Histopathology confirmed absolute inertness of the microspheres.