This paper presents a study on applying machine learning algorithms for the classification of a two-phase flow regime and its internal structures. This research results may be used in adjusting optimal control of air pressure and liquid flow rate to pipeline and process vessels. To achieve this goal the model of an artificial neural network was built and trained using measurement data acquired from a 3D electrical capacitance tomography (ECT) measurement system. Because the set of measurement data collected to build the AI model was insufficient, a novel approach dedicated to data augmentation had to be developed. The main goal of the research was to examine the high adaptability of the artificial neural network (ANN) model in the case of emergency state and measurement system errors. Another goal was to test if it could resist unforeseen problems and correctly predict the flow type or detect these failures. It may help to avoid any pernicious damage and finally to compare its accuracy to the fuzzy classifier based on reconstructed tomography images – authors’ previous work.
For decades, the search for alien life forms only used to excite sciencefiction lovers. But now serious researchers - including Polish ones - are following in their footsteps.
According to music sources, the origins of the Polish national dances - the mazurka and polonaise - can be traced back to the 16th century. German composers and theorists of that period were first to notice special Polish rhythms that soon became popular in European music.
The megaliths of Nabta Playa are an expression of an elaborate Late and Final Neolithic ceremonialism unprecedented in Africa. The ceremonial center of Nabta Playa supplies evidence that at least some of the roots of Ancient Egyptian beliefs, magic and religion lie buried in the sands of the South Western Desert.
Following the path taken by of the other countries Poland's occupational and economic structure changes due to expansion of information and communication technologies.
Artificial heart prostheses are a well-accepted method of end-stage heart failure treatment. Interdisciplinary work on constructing new internal prostheses highlights modern medicine's extensive dependence on materials science.
A common question currently linking specialists in various disciplines concerns new sources and carriers of energy that can be used globally in an ecological way in the future.
With more global warming imminent, the MICE project is trying to peer into the future of the Earth's climate and tell just what it holds for Europeans.
The latest Polish research shows that Internet users have greater life satisfaction, more friends, and stronger social bonds than those who do not use the medium.
Even if we are indeed the most advanced social species on this planet, we must remember that the greatest system of cooperating individuals to be found on Earth was not created by humans.
PIONIER - the Polish National Research and Academic Network, which is based on the academic community's own optical fibers - enables extensive partnership in developing the new generation of network technologies, grids and portals, and in advancing the widely- defined field of computational sciences.
Most peptide hormones bind to specific molecules on a cell's surface. Biotechnology offers some clues about how we can use this "key-lock" interaction to defeat cancer.
In the eastern borderlands of the Polish-Lithuanian Commonwealth in the 18th century, there were certain aristocratic courts that implemented and developed modern European social thought and ideas, setting examples in the fields of economy, science, culture, and art. The Szczorse palace was one such center.
In the time of European integration, population dynamics forecasts have to account for the increasing role of migration on the regional, country-wide, and continental level.
The past 7 years have been a time of unprecedented projects in the field of geophysics. Massive seismic experiments have made Central Europe the most thoroughly investigated region in the world. Many scientists believe this is the beginning of a new geology.
During the past two centuries, humans have switched from plant-derived energy materials to coal and oil. But as we gradually exhaust our supplies of such fossil fuels, the time for renewable energy sources is approaching.