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Nonstandard Problems with Parameters for Teaching Gifted Students in High Schools
( Lev P Yugay ) 한국수학교육학회 2013 수학교육 학술지 Vol.2013 No.2
How can we teach gifted students of high schools to solve nonstandard problems from different parts of the school mathematics program? For the solution of the above question it is offered the course "Nonstandard problems with parameters", created by author for teaching gifted students of first and second grades of high schools. In the article an analysis of academic load by mathematics of students from different countries, approximate teaching program, methodology and technology of teaching gifted students are considered. The samples of lessons contain, examination`s tests, mathematical IQ tests and puzzles are represented. In conclusion some results of the teaching is discussed.
Lev Kartovitskiy,Anton tsipenko,Jihyung Lee 한국추진공학회 2009 한국추진공학회 학술대회논문집 Vol.2009 No.11
Analysis of the uncertainty to have engineering solution of gas-dynamic and hydrodynamic problems is based on the comparison the prospective engineering solution with experimental result. ln this paper, the mathematical model to estimate heat t1ux along gas-dynamic channel wall and the solution sequence are shown. Statistical informahon and generalizing experimental characteristics about gas- and hydro-dynamic channels were applied to the mathematical model. As the results, it is possible to draw a conclusion that models of the integrated approach, using the averaged statistical data of generalizing characteristics for a turbulent t1ow, without consideration of the turbulent mechanism (characteristic pulsations), can predict a nominal operating regime for gas-dynamic and hydrodynamic systems. The probable deviation of operating regime for newly designed the gas-dynamic channel can achieve 20% from a regime predicted on a basis l-D or 3-D modelling irrespective of a kind of used models.
Bacterial Aggregates Formation After Addition of Glucose in Lake Baikal Water
Lev P. Spiglazov,Valentin V. Drucker,Tae Seok Ahn 한국미생물학회 2004 The journal of microbiology Vol.42 No.4
For determining the process of bacterial aggregation, glucose was added into water from Lake Baikal which had been stored for seven months. In the presence of a higher concentration of glucose, the abundance of single bacteria and aggregates were higher, but the biovolumes of both bacteria were similar. Theses results mean that both free-living and aggregated bacteria have similar maximum sizes and that aggregates are forming with available organic materials. With available organic materials, the biovolume of aggregates becomes larger.
Lev Vozchikov 한국색채학회 2017 AIC 2017 Jeju Vol.2017 No.10
This work defines demand for design-based color research, which reflects routine trends in urban complex transportation, redesign, and reconstruction technologies. Color isochromatic technology discussed in this article is aimed at improving commercial vehicle construction effectiveness and can be utilized for remote hyperspectral image visualization. Extant studies on the pre-historic fossil remains of fish species, dinosaurs, and primates have helped elucidate the color discrimination of natural vision. To develop ergonomically effective machinery, technologists must perform color analysis and incorporate their findings into the redesign. However, those that rigidly follow laws of nature might never extend the limits of machinery standards. Labor-intensive practices require machine operator alertness, which can be enhanced by pushing the boundaries of ergonomics. Chemical substrates emit, absorb, and reflect light from different spectral ranges. This phenomenon is referred to as light spreading. Experimental findings indicate that sunlight color spectrum continues above the visible range, differentially engaging environmental sources in those parts of the spectrum. In this work, effective working ergonomic solutions aimed at resolving security issues are discussed, aiming to provide no-risk color scheme. As industrial color technology isolates image clusters, it permits discrimination of construction elements as a part of non-destructive aircraft imaging.
MINIMAX PROBLEMS WITH PARAMETERS FOR GIFTED STUDENTS OF HIGH SCHOOLS AND LICEUMS
( Lev P. Yugay ) 한국수학교육학회 2016 수학교육 학술지 Vol.2016 No.1
The new minimax problems with parameters are posed and methods of their solving are represented. The methodology of teaching gifted students to solve such extremum problems and correspondence examples are considered. Gifted students may learn new methods of global extremum searching, which are not connected with the classical methods based on derivatives of functions.
Bibliography of bibliographies and some references on Korea In European languages
Lev Kontsevich 고려대학교 민족문화연구소 1997 民族文化硏究 Vol.30 No.-
[BACKMEISTER J.] Opyt o biblioteke Dabineta redkostey i istorii natural'noy Sankt-Peterburgskoy Imperatorskoy Akademii Hauk/Izd. na francuzskom yazyke Johann Backmeister, per. na russky Vasily Kostygov [Experience of the Library of the Cabinet of Rarities and Natural History in the St. -Petersburg Academy of Sciences/Ed. im French by J. Backmeister and transl. into Russian by Vasily Kostygov]. -St. - Petersburg, 1779. -191 pp.