|The primary business of LeoKrut is promotion of
Dr. Leonid Sakharov
life time work that includes but not limited to:
Data visualization, statistical analysis and modeling software. Scientific and
educational software application LeoDataAnalysis is targeted for the broadest
range of customers from students till scientists and data analysts.
It has very mild limits on the size of data to operate.
|Digital photo images editor.
General features: Open and save image files in most used formats. Enhance, correct colors, paint in, zoom and deform image. Select and modify part of image. Copy/paste image or selected area. Print and print preview images. Use as chroma-meter for quality control and learn physics of color.
|A numerical scientific and educational software simulator of the surface reaction during crystal growth. Artistic visualization in real time of the process including an option of stereo presentation. Illustrative tool for teaching students a concept of transformation of two dimensional nuclei mechanism of layer by layer growth into continuous one with decreasing of surface energy.
|The scientific and educational software application for the robotic internet search and download files. It can use any internet page as a starting point and find all links that it contains.
|Scientific and educational software application
for the reading, altering and saving NetCDF format files.
NetCDF is common used multiplatform binary file format for presentation and sharing experimental data.
|LeoCalculator is an application for performing calculation of mathematical expressions these could include not only basic operations but also functions and brackets. LeoCalculator also permits to use of predefined variables.
Copyrighted materials presented in LeoKrut like original pictures, videos or
articles can be subject of negotiation for copyright transferring limited or
In some cases important know-how part of materials are left outside of free public access and can be bought separately for private use or with full transfer of intellectual property rights.
|LeoConfidential performs encryption-decryption of text in Unicode encoding that means it work for most languages on the planet earth. The algorithm of encoding is our state of art propitiatory development. The general principal of algorithm is to randomly melt needle of the message into random haystack of numbers.
Data analysis is the bridge from observation to conclusion. It is the process
of making sense of reality as one becomes aware of it. In life a subject always
perceive signals via his detectors like eyes, ears, skin, nose and tongue. A
brain of human being continuously analyzes enormous flow of data in routine
subconscious manner when only very small portion is on the level that can be
verbally described and formally mathematically processed at the modern level of
The area of science called artificial intellect, AI, is doing enormous progress in modeling behavior of alive being that is manifesting itself in technological achievements like in self-driving cars, automatic voice callers, personalized web-advertisement, automatic diagnose system such as IBM Watson and robots of all kind. The advanced data analysis is integral part of AI.
Data analysis uses to solve life problems these could be formulated in terms of mathematics. The same is more and more applicable now to the science in general that has experienced evolution from collection and classification of anecdote like observations to mathematically formulated fundamental laws of nature.
Without pretending to cover all areas of data analysis even on its most basic there will be articles describing some problems in life that can be solved by methods of data analysis and shown how to do it with the held of LeoDataAnalysis.
A crystallization phenomena manifests itself in a long list of natural and technological processes. Crystals are solid materials with atoms located in regular position defined by long distance symmetry. The structure of crystals gives each of them special and often unique properties essential for material culture of civilization. The rate of transformation of atomic structure motive of matter from liquid or gas state into crystals plays important role in series of industrial productions of variety construction and other industrial materials as well for research of earth minerals formation in geology and in space bodies in cosmology.There is expanding industry for production of bulk single crystals for subsequent usage in electronics or for gems in jewelry. An optimization of the technology presumes increasing productivity that is equivalent in this case to finding a maximum rate of crystal growth securing in the same time a quality of the crystal that means keeping concentration of defects on atomic and higher scales on acceptable level. In ranking by influence on the product output the kinetics of crystal growth stays comparable very close here to the thermo- and mass- transportation phenomena.
The knowledge of how much lower temperature on the border of the crystal could be set during its growth without deviating from layer-by-layer mechanism of growth that provides the best possible quality of the crystal. For mass produced construction materials like metals and alloys, fine ceramic, Portland and high-alumina cements and for many other materials in industry the crystalline content of the product is strongly depend on time-temperature conditions of treatment of the raw mixture materials. Taking into account that different crystalline phases can have mismatched rates of their spreading out (crystal growth rates could be and mostly are different for them at the same temperature), the knowledge how atomic structure of crystals influences kinetic of crystallization could help in choosing strategy for experiment planning in development of the best quality products. There is necessity to avoid crystals formation during production of materials with amorphous atomic structures like commonly used glasses or more exotic materials like fast frozen amorphous metals.The knowledge of growth rate of crystals in initial melts as a function of temperature can provide guideline to defining minimum cooling rate that is nevertheless fast enough to avoid formation of the crystals in glass forming melts. Formation of thin films on monocrystal substrates in vacuum by physical or vapor deposition demands knowing the rate of crystal growth at given temperature. To obtain crystalline film the velocity of material deposition should be at least slower compare to the crystal growth rate. A petrography analysis of samples in geology or found in meteorite rocks permits to obtain their crystalline content. Additional information about relative growth rate of these different crystalline phases helps to deceiver a history of physical conditions of their places of origin.
Reader are encouraged to discuss content of the materials leaving comments to published pages.
|Link to install page:
|If you are using LeoKrut software or reading material
at LeoKrut.com you should know that virtually
everything here is developed by one person - Dr. L.Sakharov who is on the edge
of total retirement and without your help will abandon this site and everything
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