Efficiency of Photovoltaic Systems in Mountainous Areas

Photovoltaic (PV) systems have received much attention in recent years due to their ability of efficiently converting solar power into electricity, which offers important benefits to the environment. PV systems in regions with high solar irradiation can produce a higher output but the temperature affects their performance. This paper presents a study on the effect of cold climate at high altitude on the PV system output. We report a comparative case study, which presents measurement results at two distinct sites, one at a height of 612 meters and another one at a mountain site at a height of 1764 meters. This case study applies the maximum power point tracking (MPPT) technique in order to determine maximum power from the PV panel at different azimuth and altitude angles. We used an Arduino system to measure and display the attributes of the PV system. The measurement results indicate an increased efficiency of 42% for PV systems at higher altitude

The Pink Tax: A Comparative Case Study Between Tennessee and Washington State

The imposition of an additional luxury tax on menstrual health products, otherwise referred to as the “Pink Tax” or the “Tampon Tax”, is present in some states while absent in others. The decision to repeal such a tax is one that has proven to be critical, as it removes the connotation that such products are of “luxury” and make them more accessible to menstruators throughout the state. As of 2023, twenty-three states have eliminated the tax. The state of Washington falls under that parameter while Tennessee does not. The purpose of this undergraduate honors thesis is to explore the potential causes behind Tennessee’s continual imposition of the additional luxury tax in comparison to Washington’s decision to do away with it due to similar fiscal profiles of the two states. By examining bill histories, key players, local NGO involvement, and respective civil society agendas in the two states, it was clear that Washington’s treatment of this issue as partisan versus the political implications behind this issue in Tennessee fueled by their separate civil societies is a major factor that contributes to the existence and absence of the tax in Tennessee and Washington, respectively

MyBookStore-eshopping for books

Master of ScienceDepartment of Computing and Information SciencesDaniel A. AndresenThe Web is a shopper's paradise boasting every kind of product imaginable — plus many more that are almost unimaginable. People find it easy and secure to shop online these days thereby saving time and also have more options to choose from at their fingertips. Based on this comes MyBookStore, a neat web application designed to exclusively cater the needs of students for purchasing books online. Primary focus of this application is to ease the use of searching for a particular book by the user and also navigability within the website. A sophisticated search engine has been designed in this application which filters the products based on various user criterions. Searching and viewing the details about a book is available. This also has an administrator side through which the administrator can update the website with new products, remove any of the available products, and add new categories, subcategories and products along with updating the shipping status of orders placed. This section is majorly responsible for user accounts maintenance, product maintenance as well as orders maintenance. Major emphasis of this application is to build user interactive search techniques for simplifying user needs and to provide specific products as required by the user

Drug-induced liver injury: What would a liver doctor do?

Drug-induced liver injury is a significant cause of morbidity. Practical management strategies for suspected drug-induced liver injury, including useful investigations and appropriate referral, are proposed in this case-based article