This paper proposes modeling and simulation of photovoltaic model. Taking in to account the temperature and sun"s irradiance, the PV array is modeled and its voltage current characteristics and the power and voltage characteristics are simulated. This enables the dynamics of PV system to be easily simulated and optimized. It is noticed that the output characteristics of a PV array are influenced by the environmental factors and the conversion efficiency is low. Therefore a maximum power tracking (MPPT) technique is needed to track the peak power to maximize the produced energy. The maximum power point in the power-voltage graph is identified by an algorithm called perturbation & observation (P&O) method or Hill climbing. This algorithm will identify the suitable duty ratio in which the DC/DC converter should be operated to maximize the power output. The results confirm that the photo voltaic array with proposed MPPT controller can operate in the maximum power point for the whole range of assumed solar data (irradiance and temperature).
Short-term (1 year) outcome of 66 male patients with psychosexual dysfunction was studied in the context of patients' sociodemographic and clinical characteristics. A combination of erectile dysfunction and premature ejaculation was the most common diagnosis. Long-term (7 years) outcome of this cohort was evaluated in relation to short-term outcome. Improvement in the short-term indicated favorable long-term outcome. Initial dropout was associated with chronic and continuous sexual dysfunctioning.
Indian flying corps and Israel Aerospace Industries (IAI) forged long standing military ties, Israel aviation enterprises keeping up their strong position as best-in-class UAV manufacturers for both civilian and military use and supplying the Indian military with advanced UAV frameworks. IAI has provided IAF with a sum of 176 Israel-made automatons including 108 IAI Searchers and 68 unarmed Heron-1 airships for observation and surveillance missions including an armada of IAI Harpy rambles. With the expanding request of India's military associations, for example, the DRDO, Aeronautical Development Establishment (ADE), the National Aerospace Laboratories (NAL), Hindustan Aeronautics Limited (HAL) have been creating UAVs with ISR, focusing on, and weapon direction abilities. The first trip of the Rustom-2 model on 16 November 2016 was a turning point for India. This work shows the correlation of the Indian and Israeli UAVs created depending on their main capacities and execution qualities.
The COVID-19 pandemic is considered as the most alarming global health calamity of this century. COVID-19 has been confirmed to be mutated from coronavirus family. As stated by the records of The World Health Organization (WHO at April 18 2020), the present epidemic of COVID-19, has influenced more than 2,164,111 persons and killed more than 146,198 folks in over 200 countries across the globe and billions had confronted impacts in lifestyle because of this virus outbreak. The ongoing overall outbreak of the COVID-19 opened up new difficulties to the research sectors. Artificial intelligence (AI) driven strategies can be valuable to predict the parameters, hazards, and impacts of such an epidemic in a cost-efficient manner. The fundamental difficulties of AI in this situation is the limited availability of information and the uncertain nature of the disease.Here in this article, we have tried to integrate AI to predict the infection outbreak and along with this, we have also tried to test whether AI with help deep learning can recognize COVID-19 infected chest X-Rays or not. The global outbreak of the virus posed enormous economic, ecological and societal challenges into the human population and with help of this paper, we have tried to give a message that AI can help us to identify certain features of the disease outbreak that could prove to be essential to protect the humanity from this deadly disease.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.