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Timoshkov Yu.V.,Belarusian State University of Informatics and Radioelectronics | Kurmashev V.I.,Minsk Institute of Management | Timoshkov V.Yu.,ASML Inc
SID Conference Record of the International Display Research Conference | Year: 2011

Projection systems in display technologies are based on MEMS with moveable elements. Realization of the mechanical interaction is the limiting factor for such complex systems. Application of nanocomposite materials solves the problem of moveable elements production of high accuracy and reliability. Implementation of such materials with enhanced physical-mechanical properties is the only way for industrial development of MEMS containing mechanical moveable elements. Source

Loginov V.F.,Minsk Institute of Management
Geography and Natural Resources | Year: 2010

An analysis is made of the magnitudes of the linear trends of daily mean temperature in the city of Minsk for the period from 1966 to 2008. It is found that the largest magnitudes of trends in the annual variation correspond to mid-January as well as to the end of July-August, whereas in May and in November they are poorly pronounced (positive or even negative). The maximum magnitudes of the air temperature trends are in good agreement with maximum warm advection by currents of the Gulf Stream system, while modest warm advection by currents corresponds to weak positive and even negative magnitudes of the temperature trends. Consequently, the magnitude of the temperature trends in the annual variation is modulated by warm advection by currents of the Gulf Stream system which contains a half-yearly component and is determined by natural factors. Therefore, the driving forces of current climate warming cannot be attributed solely to the increase of greenhouse gases in the atmosphere. © 2010. Source

Parfenova L.N.,Russian Academy of Sciences | Selyanina S.B.,Russian Academy of Sciences | Trufanova M.V.,Russian Academy of Sciences | Bogolitsyn K.G.,Northern (Arctic) Federal University | And 4 more authors.
Science of the Total Environment | Year: 2016

Northern wetlands ecosystems play an important role in the hydrological balance of neighboring areas, where they act as chemical barriers against anthropogenic and technogenic contaminations. Studied region is well known for quantity of peat deposits and the volume of peat resources. Peat can be considered as a highly informative marker for assessing change in environmental conditions. The study presents the results of the first investigation of peat samples, collected from representative ecosystems of northern wetland territories with low anthropogenic impact.Component and element composition of various peat types were studied in a relation to hydrologic, climate and sampling conditions. It was found out that organic and ash contents are more dependent on the type of the bog, than geographic location. Climatic factors are more important for the formation of bitumen. The degradation degree in peat increases proportionally to content of humates. High content of biogenic and lithogenic elements was observed in transition- and low-moor peat. The content of trace elements in peat samples do not depend on the type of the peat.The structural properties of peat were studied by the light microscopy, AFM and dynamic light scattering. It was determined that the conformation of studied peat samples is characterized by elements of asymmetry. The observed particles in the solutions exist in dynamic equilibrium with separated globular macromolecules. The size of these nanoparticles is comparable with the size of the particles of other biopolymers of similar nature.Swelling of peat in liquid water was studied. The relationship between structural specificities, origin of peat and its maximum degree of swelling was found. The degree of swelling can be used as structural-sensitive parameter in further research. © 2016 Elsevier B.V. Source

Timoshkov I.,Belarusian State University of Informatics and Radioelectronics | Kurmashev V.,Minsk Institute of Management | Timoshkov V.,Belarusian State University of Informatics and Radioelectronics | Sakova A.,Belarusian State University of Informatics and Radioelectronics
Materials Physics and Mechanics | Year: 2014

Problem of wear and friction of mechanically moving and load carrying elements of micro and nano dimensions is considered. The electrochemical plating technology of metals and alloys with inert hard nanoparticles in micromolds patterned in SU-8 negative photoresist is one of the approaches to solve the problem. The influence of process parameters on the mechanical properties of particle-reinforced coatings is described. The application of nanocomposite materials to improve the mechanical properties of micro and nano components in modern integrated systems is investigated. Codeposition model of nanocomcposite plating is developed. The outlook of these materials and technologies for advanced micro- and nanoelectromechanical systems of high reliability and their application is considered. A method for manufacturing of holographic films with high runability for roll-to-roll technology is described. © 2014, Institute of Problems of Mechanical Engineering. Source

Bucala A.,Polish Academy of Sciences | Margielewski W.l,Polish Academy of Sciences | Starkel L.,Polish Academy of Sciences | Buczek K.,Polish Academy of Sciences | Zernitskaya V.,Minsk Institute of Management
Geochronometria | Year: 2014

The paper presents the analysis of organic and mineral sediments filling the depression, which developed over the landslide located at the slope (767–773 m a.s.l.) of Lubań ridge decscending to the Ochotnica river valley in the Polish Flysch Carpathians. The landslide formed in an early stage of the Subatlantic Phase (2490 ± 35 BP). The top of peat is dated at 1360 ± 50 years BP and is covered by 72 cm of clayey silts with some sandy intercalations, which indicate slopewash after deforestation. The pollen of ruderal plants and Cerealia (undiff.) reflect agricultural activity in the surroundings. The fragments of charcoal indicate the age of the forest clearance to the first half of the 17th century. The late forest clearance at the elevated north exposed slopes followed 200–300 years later in relation to the foundation of the village at the valley floor. © 2013, Versita Warsaw and Springer-Verlag Wien. Source

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