Rajasthan Technical University

About: Rajasthan Technical University is a education organization based out in Kota, Rajasthan, India. It is known for research contribution in the topics: Photovoltaic system & PID controller. The organization has 716 authors who have published 1084 publications receiving 4530 citations. The organization is also known as: RTU.

The Un-Human Beings

Abstract: This essay traces the political and legal discourses around migrants and refugees in two distinct conditions: the postcolonial and the postsocialist of India and Poland, respectively. The two countries have recently turned to nationalist right-wing politics with an increasingly hostile focus on foreign Others, particularly Muslims. In the context of increased global surveillance and criminalization of Muslims, we show how the bodies of Muslim migrants are dehumanized and constructed as threats, denying their humanity in the process. We do this through the two cases of Ayub and Ameer, two Muslim men navigating their “illegality” in two different contexts in India and Poland. This essay is a contribution to the literature on postcolonial and postsocialist theories and critical debates about the possibilities of dialogue between postsocialist and postcolonial geographies. The examples we use demonstrate that the postcolonial and postsocialist nation-states respond to global phenomena such as migration and Islamophobia in ways that have discernible traces of their histories and are constituted distinctively from the western metropoles.

Performance Evaluation of Expansive Soil Using Animal Bone Ash

Abstract: There is a continuous search for improving the geotechnical properties of expansive soil economically due to non-availability of good construction sites for structures to build also to increase the strength of flexible pavements for efficiently withstand applied loads with a reduction in the thickness of pavements and improve the durability of pavements. The present study deals with the performance evaluation of expansive soil using animal bone ash (ABA). Significant changes are observed in mechanical and physical properties of expansive soil after adding ABA. The animal bones obtained from dead animals which are collected from an abattoir at Kota, Rajasthan. These animal bones are crushed and dried for 3 days in an open area. Then these crushed and dried bones are burnt in open air at uncontrolled temperature. The ashes obtained were cooled and sieved with 425-μm sieve to obtained ABA. This ABA was added in proportions of 2, 4, 6, and 8% by weight of samples to the soil to study the improvement in its properties. The local soil selected is highly plastic clay with a liquid limit of 51.68%, a plastic limit of 26.62%, and a plasticity index of 25.06%, which is not suitable for any construction activities purposes, needs stabilization. The results obtained on addition of ABA to the soil at different proportion reduces the plasticity of soil and soil convert from high plasticity clayey to intermediate plasticity and finally turned into low plasticity clayey. On addition of ABA to the soil at different proportions in soil samples reduces the water content and increases the dry density. For the addition of 6% of ABA with black cotton soil, the percentage increment in the value of CBR is more than 100% and beyond 6% of addition of ABA, the value of CBR decreases. The UCS value increases by increasing the percentage of ABA up to 6% and with the further increment in addition of ABA, the value of UCS also decreases. Thus, the optimum dose of ABA is found to be 6%. The value of swelling pressure for virgin black cotton soil is 1.38 kg/cm2 and, after adding of 8% ABA, it decreases to 0.11 kg/cm2. Thus, the percentage decrement in swelling pressure is 92.02%.

Single phase standalone photovoltaic micro system with six level inverter topology

Abstract: The work deals with six-level inverter topology for single phase standalone photovoltaic (PV) based micro system with reduced device count. Fundamental switching scheme has been presented using selective harmonic elimination-pulse width modulation (SHE-PWM) method to calculate the switching angles for optimization of harmonics and to eliminate the lowest order harmonic from the system. The Perturb and Observe algorithm is used for tracking the maximum power point for the triggering of DC–DC boost regulator conversion stage. Complete control scheme has been given with different modes of operation. The PV micro system has been simulated and tested in Matlab simulink environment. Total harmonic distortion analysis for the output voltage and current without and with filter has also been carried out for the system under test.

Framework and Case Study for Optimizing Target Value of a Process Using Taguchi’s Asymmetric Loss Function

Abstract: In manufacturing sector, process designing for meeting the target value, so as to have a trade-off between the scrap and rework, is generally carried out by hit and trial method. In the present study, a framework for implementing the process has been proposed. The framework proposed here is focused to obtain the optimized value of the process target designated by ‘m’ in Taguchi’s loss function through a CAIV cycle of data collection, analysis, implementation, and validation. A case study of piston ring manufacturing company is also given in the study to explain the proposed framework in detail. It is observed that on systematically implementing of the framework using Taguchi’s quadratic loss function, a balance between loss due to scrap and loss due to rework was established. Twenty batches of the rings were further inspected for the average loss incurred per batch which brought down the average loss value for manufacturing of pistons by almost 14% per batch.