Impact of Land Use Change on Climate: A Study of Tripura

Land use is the human utilization for money, private, recreational, conservational and administrative purposes. The idea of land use is firmly interwoven with human network advancement. Examples of human turn of events and land use have molded the earth legitimately and internationally since ancient occasions. Current improvement designs, along with highlights of the common habitat and the outcomes of past advancement exercises, decide future advancement openings, and furthermore the requirement for rebuilding or upgrade of natural assets. North-east India is the abode of highly endemic flora and fauna preserving the pristine environment with little human interference until recent times. However, for past two decades a drastic change in the land use pattern in the region has been observed which may threaten the fragile ecological balance of the region. Tripura, known as one of the seven sisters, is a bamboo resource and second largest rubber producer in India. Tripura has the highest number of primate species found in any Indian state. However, as compared to its other sisters, the state is economically backward. The land use of the state is undergoing rapid change which is facilitated to a great extent by rapidly increasing population. The present paper deals with the changing land use of Tripura especially in the last two and a half decades. The objective of the study is to analyse the changing land use of the state in general and changes in agricultural and non-agricultural land use in particular based upon the data collected from secondary sources like Statistical Abstract of Tripura, Population Tables of Census 1991, 2001 and 2011 along with the information collected from various government websites

Mathematical Analysis for Power Loss Analysis of a Seven Level Aligned Multilevel Inverter

Multilevel inverters are widely used in many applications due to their superior performance over conventional inverter. However, due to increasing number of switches in existed multilevel inverts, the cost, size and losses are increasing continuously and these factors are directly proportional to number of inverter level. Hence, aligned multilevel invert is developed and enhanced the analysis on power loses is presented in this paper. The number of switches are used in aligned multilevel inverter is very less compared to existing multilevel inverters. Moreover, space vector pulse width modulation technique is developed for generating pulses to inverter. The mathematical calculation of power loss analysis for 7 level aligned multilevel inverteris evaluated and presented in this paper

Hybrid Intelligent Optimization Techniques for Grid Integration with Renewable Systems: Review

Renewable energy sources are essential in fulfilling the increasing need for electricity. Researchers are actively exploring eco-friendly alternative energy sources and technologies, particularly in the form of micro grids or gridintegrated systems. A hybrid renewable energy system with battery storage in a small-scale industry was optimized using a blend of traditional and cutting-edge models, employing mixed integer linear programming techniques, as demonstrated in a recent study. The proposed optimization algorithm offers improved accuracy and reduced computational burdens. The model considers the intrinsic stochastic nature of hybrid energy systems and integrates fluctuations in load forecasting. By employing an intelligent computational optimization algorithm, the study focuses on optimizing the PV-Wind, Diesel, and battery storage hybrid system. The findings of this research shed light on the impact of load variations on component sizing in small-scale industries. This review holds significant value for researchers who aim to tackle the intricacies of algorithm analysis and power system design in order to drive future enhancements

Pulmonary hypertension and post-operative outcome in renal transplant: A retrospective analysis of 170 patients

Background and Aims: Renal transplant is the best possible treatment for patients suffering with end-stage renal disease (ESRD). Cardiovascular events are the commonest factors contributing to perioperative morbidity and mortality in this population. These patients have a high incidence (up to 60%) of pulmonary hypertension (PH) and that may affect the perioperative outcome. Methods: In this study, we aimed to study the impact of PH on perioperative outcome after renal transplant. PH was defined as patients with pulmonary artery systolic pressure ≥35 mmHg on pre-operative echocardiography. Medical records of 170 patients who had undergone renal transplantation in the past 3 years were reviewed. Primary outcome was delayed graft functioning and secondary outcomes were perioperative complications such as hypotension, arrhythmias, need of post-operative mechanical ventilation, atelectasis and pulmonary oedema. Results: We observed 46.5% incidence of PH in ESRD patients. Compared to patients without PH, more patients with PH had postoperative hypotension (26.58% vs. 9.89%, P = 0.004) and delayed graft functioning (8.8% vs. 1.1%, P = 0.026). On multivariate analysis, however, PH was not an independent predictor of delayed graft functioning. Conclusion: In ESRD patients, although PH is not an independent predictor of delayed graft functioning, patients having PH are more prone for perioperative hypotension and delayed graft functioning after renal transplant