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.
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.
Shelterbelts and forested patches surrounding cultivated fields are far more than just an aesthetic component of the rural landscape. They have an impact on vital cycles of matter and energy.
Fluid motions are responsible for most of the transport and mixing that take place in the environment, in industrial processes and vehicles, and within living organisms.
While the people and enterprises of Poland have numerous international contacts, the extent, nature and direction of such contacts differ greatly across various regions. These patterns manifest a historical legacy that dates back to the 18th century, a time when Poland was missing from maps of Europe.
The transplantation of adult or embryonic cells offers high hopes in the treatment of diabetes, burns or neurological diseases. But why is progress so slow?
The Polish education system lags behind in terms of the number of computers in schools, access to the Internet, and teachers' computer skills. New programs are now being implemented to better prepare young people for the modern job market.
Ruminants ingest plants, but they in fact derive the main source of the nutrients they truly utilize from microorganisms inhabiting the first chamber of their complex stomachs.
Change has traditionally been one of the fundamental interests of management research and management practice. The debate between proponents of "revolutionary" and "evolutionary" change remains open. Rather unexpectedly, history has offered us a unique opportunity to study management change of the post-Communist transition economies.
On January 29, 2004 an unmanned Progress spacecraft was launched from the Baikonur Cosmodrome in Kazakhstan, heading for the International Space Station (ISS). Scientists who study the radiation environment in space, including a group of Polish researchers, were watching this launch with special interest.
Systemic change in Poland since 1989 and the EU integration process has brought new economic functions to rural areas. Our research projects focus on the problems of transformation and strive to identify the right path of development.
The Lublin Branch of the Polish Academy of Sciences is one of the Academy's seven regional branches. All of them are situated in large academic centers; in addition to Lublin, these include Kraków, Łódź, Katowice, Poznań, Gdańsk and Wrocław.
The beginnings of genetic engineering date back to the 1970's. Today this technology permits us to produce animals that manufacture human proteins - one of the most expensive medicines.
Attempts to increase gene activity can sometimes have the opposite result: switching off the gene in question. We are now trying to exploit this phenomenon to control plant physiology.
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