The reserves of fossil fuels have been decreasing, and the combustion of fossil fuels shows negative impacts on environment. There is necessity to find clean, sustainable energy sources that could substitute fossil fuels. Hydrogen is a clean and renewable energy carrier with a high energy yield, thereby being considered as available alternative energy carrier of future. However, the major problem in utilization of hydrogen gas …

Global warming has caused a lot of changes in Polar Regions, particularly in the western Antarctic Peninsula that has experienced the biggest temperature increase on Earth, rising by 0.5 degree Celsius per decade in the past 50 years. As a result, a string of ice shelves that have collapsed in the West Antarctic Peninsula in the past thirty years, including the Larsen B, Prince Gustav Channel, …

Most of the existing quantum key distribution protocols (QKDP) assume that every communicating party is equipped with quantum devices (QD), e.g., the qubit generating machine, or the quantum memory, or the qubit measuring machine. However, in the practical situation, these QDs are expensive and a center may be the only party that affords to own these devices. Though Phoenix et al. …

Activity improvement and personal hygiene related issues are the most popular research focuses within assistive technology for people with limited mobility, however, most of the researchers have been paying more attention to the topics of assistive technology than personal hygiene, although the hygiene issue seems to be as important as the assistive devices development. …