Virtually every piece of electronic equipment, e.g., computers and their peripherals, calculators, TV and hi-fi equipment, and instruments, is powered from a DC power source, be it a battery or a DC power supply. Most of this equipment requires not only DC voltage but voltage that is also well filtered and regulated. Since power supplies are so widely used in electronic equipment, these devices...

Virtually every piece of electronic equipment, e.g., computers and their peripherals, calculators, TV and hi-fi equipment, and instruments, is powered from a DC power source, be it a battery or a DC power supply. Most of this equipment requires not only DC voltage but voltage that is also well filtered and regulated. Since power supplies are so widely used in electronic equipment, these devices...

The ship electrification process is the of installing or providing electric power to supply all electrical needs for ships. In general, main electricity will be provided, and emergency supplies in form batteries generators that are able survive supplying loads such as navigation equipment, lights, lighting about 3 hours. Another consideration on fishing vessels also aimed at reducing dependence...

The International Energy Agency (IEA), an autonomous agency, was established in November 1974. Its mandate is twofold: to promote energy security amongst its member countries through collective response to physical disruptions in oil supply and to advise member countries on sound energy policy. The IEA carries out a comprehensive programme of energy cooperation among 28 advanced economies, each...

We conducted an analytic study of concentrated solar photovoltaic and hot water co-generation based on various solar cell technologies and micro channel heat sinks. By co-optimizing the electricity generation and heat transport in the system, one can minimize the cost of the key materials and compare different tradeoffs as a function of concentration ratio or other parameters. Concentrated sola...

In recent years, several factors such as environmental pollution, declining fossil fuel supplies, and product price volatility have led to most countries investing in renewable energy sources. particular, the development of photovoltaic (PV) microgrids, which can be standalone, off-grid connected or grid-connected, is seen one viable solutions that could help developing Rwanda minimize problems...

The study was conducted to know the impact of natural gas prices on electricity tariffs in UK. Although United Kingdom doesn’t rely directly Russian supplies, still, we are acutely vulnerable energy catastrophe that has resulted from invasion Ukraine. UK is part European Union and a reason tariff closely connected EU. literature review will elaborate more price by using an unrestricted vector a...

the prevalence of atrial fibrillation (af) is 1-2 % in the general population, and the risk of embolic stroke in af patients is 4-5 times higher than that in the general population. af-related strokes are often severe, and the rate of permanent disability is much higher among individuals who have af-related strokes than in those who have strokes unrelated to af. in patients with af, more than 9...