Американизация геометрического образования в России и начертательная геометрия

The article suggests a methodology of historical research of preschool education. The analysis of theoretical and methodical provisions for the education of preschool children. Discusses the importance of the achievements of the Soviet system of preschool upbringing and education. Shows the principles, directions, methods and conditions for their implementation when working with children of preschool age. Discusses the state of childhood in modern Russia, problems of development of preschool children and their causes. Given the number of subjective and objective factors on the issue of child protection. Considers the orientation of the system of preschool education in preparation for school. Is determined by the percentage of preschool children in preparation for school. Analyzed the successes and shortcomings of the Soviet system of preschool education, the limits of their use in modern conditions. It is shown that the use of the method of historical-comparative analysis together with the concept of periodization, helps to ensure all the principles of historical science and to predict areas of preschool education in Russia. Discusses the contradictions of the present stage of development of preschool system form of further education, the ways of their solution in the Soviet Union. It is shown that many of the problems that are expected to allow innovative, have already been successfully resolved by the Soviet system of education.

In order to better meet user needs, user-oriented interactive design introduces computer graphics technology to generate, process, and transmit graphical information more effectively, thereby enhancing the practicality, simplicity, convenience, and enjoyment of interactive media. This paper aims to discuss the application of computer graphics in interactive media design. In order to analyze and compare the use of different computer graphics (CG) technologies in different scenarios, this paper classifies the interactive media into three categories according to the different focuses of the purposes, namely distributed interaction media, commercial interaction media and informational interaction media, and discusses the application of computer graphics in interactive media design with specific examples. This paper analyzes and compares the use of different CG technologies in interactive media according to their different purposes, namely distributed interaction media, commercial interaction media and informational interaction media. The paper concludes with a summary of the current applications of computer graphics in interactive media design, and an outlook on the future use of CG technology in interactive media design.

Computer graphics is receiving much attention in the development of interactive educational software, multimedia systems, and many other applications. It not only adds a new dimension to such applications but also makes them more exciting and dynamic. Furthermore, the use of computer graphics is already well accepted in computer science education. If skillfully and relevantly used, it can be an important component of computer-assisted instruction, which is an educational application area with tremendous potential.

Development of a reservoir simulation model involves collection and analysis of an enormous amount of reservoir and well data for initial input. Computer graphics is the most effective tool for geologists and engineers to visualize, verify, and analyze the input data. After each simulation run, simulation engineers then have to depend heavily on computer graphics to analyze an even more intimidating amount of simulation results data. This is especially true at Saudi Aramco because of the large simulation models used to simulate the world's largest hydrocarbon reservoirs. Saudi Aramco's EXPEC Computer Center supports a wide spectrum of computer graphics applications to aid the exploration and engineering staffs through the entire cycle of reservoir characterization. The graphics applications help during the pre-simulation model data analysis as well as in the post-simulation results analysis. Larger and more accurate simulation models are currently being developed In Saudi Aramco. Computer technology (both software and hardware) needs to advance continually such that computer graphics can be utilized as an effective and efficient engineering tool by reservoir simulation professionals. This paper addresses Saudi Aramco's experience in dealing with very large simulation models and using computer graphics as an engineering tool. The program efficiency, device dependence, and data management problems will be discussed. The computer speed, data storage and access methods, data transmission speed, and graphics devices will also be detailed.

Bezier and B-spline curves are among the most powerful tools used for complex graphical approximation. In this paper, we will use them to recreate the hydrographic map of the Republic of Macedonia. The results obtained in this paper show that cubic spline curves have smaller average deviation in respect to B-spline curves, in contrast to Bezier curves. The results and the images are obtained by using the software package Wolfram Mathematica. Key words: Bezier curves; B-spline; cubic spline REFERENCES [1] Vera B. Anand: Computer Graphics and Geometric Modeling for Engineers, John Wiley & Sons Inc. 1996. [2] V. Andova, S. Atanasova, K. Bacev, Gj. Peev, G.Kostov: Approximation of map borders using Mathematica, ETAI (2015). [3] R. H. Bartels, J. C. Beatty, B. A. Barsky: An Introduction to Splines for Use in Computer Graphics and Geometric Modeling, Morgan Kaufmann Publishers Inc. 1987. [4] R. C. Beach: An Introduction to the Curves and Surfaces of Computer-Aided Design, Van Nostrand Reinhold, 1991. [5] E. Cohen: Discrete B-splines and Subdivision Techniques in Computer Aided Geometric Design and Computer Graphics, International Association for Bridge and Structural Engineering, 1979. [6] C. De Boor: A Practical Guide to Splines, Revised Edition, Springer, 1978. [7] G. Farin: Curves and Surfaces for CAGD. A Practical Guide, fifth edition, Academic Press, 2002. [8] G. Farin, J. Hoschek, M.-S. Kim: Handbook of Computer Aided Geometric Design, Elsevier, 2002. [9] G. Farin: NURBS: From Projective Geometry to Practical Use, 2nd edition, AK Peters, 1999. [10] J. Fiorot, P. Jeannin: Rational Curves and Surfaces, Wiley, 1992. [11] J. Gallier: Curves and Surfaces. In: Geometric Modeling:Theory and Algorithms, Morgan Kofman Publishers,2000. [12] G. G. Lorentz: Bernstein Polynomials, University of Toronto Press, 1953. [13] R. F. Riesenfeld: Applications of B-spline Approximation to Geometric Problems of Computer-Aided Design, Syracuse University, 1973. [14] D. Rogers: An Introduction to NURBS with Historical Perspective, Elsevier, 2001. [15] W. Rudin: Real and Complex Analysis, McGraw-Hill Higher Education, 1986. [16] D. Salomon: Curves and Surfaces for Computer Graphic, Springer, 2006. [17] S. Wagon: Mathematica in Action Problem Solving Through Visualization and Computation, Springer, 2010. [18] S. Wolfram: The Mathematica Book, Fifth Edition, Wolfram Media, 2003.

Perspectives on <i>The Soviet Union and the Horn of Africa during the Cold War</i>

The primary purpose of the research is to investigate long-term memory and its relationship to computer graphics incorporated shots in commercial Tamil films. Also,this research focused on the use of visual effects shots for the effective memory and recalling factors of the Tamil film audience. Throughout the sequels of movies like Enthiran and Bahubali, many of CG incorporated symbols, signs, and shots are extensively used to create visual pleasure among the audience. So, the movie sequels like Enthiran, 2.0, Bahubali 1-The beginning, and Bahubali 2-The conclusion are selected to study the positive impact of CG incorporated shots. According to the psychologist’s views, there are three classifications present in memory. They are sensory memory, short-term memory, and long-term memory. Sensory memory is a very basic type of memory, which present only as long as the visual /sound is present in front of the viewers. The short-term memory is present only up to 20 seconds. Long-term memory has the capability to store unlimited information and data for a few minutes to many years. To store the information in long-term memory the visual or auditory stimulus should be very strong. In this research, the qualitative analysis of interview data is used to study the relationships. Furthermore, the cued recall test is used to gather the information from the film audience. Computer graphics are used in the Enthiran and Bahubali movie series to create visual signs. These visual signs are present in the form of crowns, armours, swords, chariots, architectures, guns, costumes, tattoos, and property materials. This research shows that stories are effectively visualized with the use of computer graphics and visual effects. In addition, the interesting result of this research is the memory and recall ability of the film audience.This research concludes that the effective use of CG incorporated shots gives more effectiveness to the memory due to the individual’s thought engagement with the story.

We review the recent application of computer graphics to problems in the history and interpretation of master artworks. Carefully constructed computer graphics models of tableaus in paintings allow scholars to explore what if scenarios concerning lighting, geometry, placement of subjects, physical properties (such as color and reflectance characteristics), and more. A special application of computer graphics is to dewarp images depicted in spherical mirrors, such as appear in works from the northern Renaissance, thus revealing new views into artists' studios. We present a number of methodological recommendations to help ensure the results of such studies are valid. We describe some successes of these new techniques and conclude by discussing several outstanding problems and future directions for the use of computer graphics in the analysis of realist art.

The article formulates the urgent problem of ensuring the required quality of engineering specialists and concludes that in order to solve this problem it is necessary to ensure the quality of basic engineering and geometric training in junior years during the study of the geometric and graphic course - Descriptive Geometry, Engineering and Computer Graphics. Definitions of engineering geometry, descriptive geometry, engineering graphics and computer graphics are given. It is noted that from the very first lesson on the geometric and graphic course, students study the basis of the engineering method - a constructive approach, according to which the solution of any problem consists of the stages of analyzing the conditions of the problem, synthesizing the solution (prototype production), validation, research. Examples of the application of engineering and geometric methods in various fields are given: in mechanical engineering and robotics, aircraft, shipbuilding and machine tool manufacturing; in instrument making, radio engineering and radio electronics; in thermal, nuclear, hydropower and electric power engineering; in geoinformation and space systems; in chemistry, chemical technology and biotechnology; in materials science and physical and chemical analysis; in medicine. Additionally, a special type of drawings is considered – nomograms. Examples of modern nomograms are given. Conclusions are made that all specialists in engineering specialties without exception must have knowledge, skills and abilities in working with geometric and graphic information. The fundamental basis for this is the basic geometric and graphic course. Improving the general level of engineering training is impossible without a corresponding increase in the level of basic engineering and geometric training of students. References are given to publications devoted to the analysis of the causes of weak engineering and geometric training, and publications that show ways to ensure the required quality of basic engineering and geometric training.

The article examines the historical prerequisites for the formation of the ideology of Ukrainian nationalism, analyzes its main provisions, and its impact on the foreign and domestic policy of the independent Ukrainian state. The Ukrainian national idea was formed in the late 19th first half of the 20th century. It was based on three fundamental provisions: the Russian state is the enemy of Ukrainian independence and therefore in the interests of Ukraine its weakening, and even better disintegration; the Russian population in Ukraine is a very serious obstacle to the formation of an independent Ukrainian state, and therefore it should be assimilated; the independence of the Ukrainian state can be guaranteed only by close cooperation with European countries, which will help it in defending its independence in the confrontation with “Asian” Russia, as Ukraine is a European country, part of Europe. On the basis of these ideological provisions it was supposed to form a Ukrainian identity. As the article emphasizes, the national Ukrainian idea in this form contains a very large charge of conflict with Russia, inevitably leads to a clash of their geopolitical interests. The proclamation of Ukraine’s independence in 1991 meant the emergence of a second Russian state, whose population had to be transformed into a Ukrainian nation. The ruling political elite of the country with the support of the Ukrainian intelligentsia as the ideological basis for the construction of the Ukrainian nation state and the Ukrainian nation adopted the basic tenets of the Ukrainian national idea, which was formed in the first half of the 20th century and put them at the basis of its foreign and domestic policy. All Ukrainian Presidents, though with varying degrees of determination and consistency, implemented them. Kiev’s policy of strengthening the country’s independence implied independence from Russia, which is seen as the main threat to the national security of the young Ukrainian state. The article states that the presidential elections of 2019 and the defeat of P. Poroshenko showed that the majority of Ukrainian society does not accept such an identity. They need an identity on other principles, which in Ukraine have not yet developed and are not visible. So far, there are no political forces, political party, that could formulate them and put them in the basis of statehood and nation-building. The current President V. Zelensky in his policy is guided by old ideas and visions. After the collapse of the Soviet Union and the formation of the New Independent States, Russia did not immediately realize the scale of the challenges and threats to the country’s security from Ukraine. Sobering occurred under the influence of the “Orange Revolution”, when Kiev abandoned the policy of multivectors and began to pursue a pronounced pro-Western policy. At the same time, Moscow begins to realize that it will not be able to enter the community of democratic states on its own terms, and begins to position itself as an independent center of power, opposing the West. Strengthening its positions in this confrontation, it connects with the consolidation of the post-Soviet states around itself within the framework of integration projects, first EvrAzES, and then the EAEU. Moscow linked their successful implementation with Ukraine’s participation in their implementation, because it believed that without it these projects would not be effective. However, Kiev did not want to support these plans, focusing “on entering Europe”. According to the author, from that moment the foreign policy strategies of both countries began to differ in principle and the two countries from strategic partners turned into geopolitical rivals. The West supported Kiev in its pro-Western foreign policy, considering it as an element of deterrence of Russia’s great-power ambitions. Both Moscow and the West tried to drag Kiev to their side. The coup d’etat carried out by nationalist forces in Kiev in February 2014 seemed to mean the West’s victory in this peculiar tug-of-war. In response, Moscow annexed Crimea and supported the struggle of the self-proclaimed DPR and LPR against the Kiev government. As a result, Ukraine has embarked on a tough confrontation with Russia, seeing it as an aggressor and an enemy. The author of the article comes to the conclusion, that overcoming the confrontation between them will take a lot of time and effort and for the foreseeable historical perspective the relations between them will be based on the principles of the zero-sum game. In these circumstances, there is no need to talk about partnership and cooperation, as it is a question of relations between two hostile States. The most that can be expected is to maintain a “cold peace” between them. But such a state can be achieved only if relations between Russia and the West are normalized, and a new Cold War is eliminated.

The organizing committee has asked me to review the use of computer graphics in electron density fitting. Meeting them half way I shall give a brief description of this and then describe some recent developments that I have made in Uppsala.

With the development and popularization of computer application technology, the use of computer graphics and image processing technology has become the main means of modern engineering design and drawing. Learning and mastering 3D modeling technology and mechanical information modeling technology have become an important goal of learning engineering drawing. To meet the teaching requirements of the “New Engineering” program, higher education should cultivate innovative talents with the ability to identify, express, analyze, and solve complex engineering problems; promote the transformation of teaching methods for the course of “Mechanical Drawing and Computer Drawing” from “teaching well” to “learning well.” This change is not only a change in course content, but also a change in training objectives. It introduces modern 3D design concepts into the drawing course, constructs a learning system with 3D modeling technology as the main line, solves the problem of imagination in traditional teaching, makes the learning process more in line with scientific cognitive laws, better meets the needs of modern manufacturing industry for new technologies, and improves students’ drawing skills and ability to use modern tools (computer drawing).

Analytical models of light reflection are in common use in computer graphics. However, models based on measured reflectance data promise increased realism by making it possible to simulate many more types of surfaces to a greater level of accuracy than with analytical models. They also require less expert knowledge about the illumination models and their parameters. There are a number of hurdles to using measured reflectance functions, however. The data sets are very large. A reflectance distribution function sampled at five degrees angular resolution, arguably sparse enough to miss highlights and other high frequency effects, can easily require over a million samples, which in turn amount to over four megabytes of data. These data then also require some form of interpolation and filtering to be used effectively. We examine issues of representation of measured reflectance distribution functions. In particular, we examine a wavelet basis representation of reflectance functions, and the algorithms required for efficient point-wise reconstruction of the BRDF. We show that the nonstandard wavelet decomposition leads to considerably more efficient algorithms than the standard wavelet decomposition. We also show that thresholding allows considerable improvement in running times, without unduly sacrificing image quality.

This paper describes how evolutionary techniques of variation and selection can be used to create complex simulated structures, textures, and motions for use in computer graphics and animation. Interactive selection, based on visual perception of procedurally generated results, allows the user to direct simulated evolutions in preferred directions. Several examples using these methods have been implemented and are described. 3D plant structures are grown using fixed sets of genetic parameters. Images, solid textures, and animations are created using mutating symbolic lisp expressions. Genotypes consisting of symbolic expressions are presented as an attempt to surpass the limitations of fixed-length genotypes with predefined expression rules. It is proposed that artificial evolution has potential as a powerful tool for achieving flexible complexity with a minimum of user input and knowledge of details.

The presented simulation model of surface tension and wettability based on physical properties of liquids is designed for use in computer graphics. Due to the relatively small surface tension forces the model is useful for simulating liquid of small volume such as droplets. This model can be used in conjunction with various fluid simulation methods, one of the most popular - Marker and Cell - has been selected for this paper. The paper describes also a simple and rapid method of determining the liquid surface as a mesh of triangles. The presented method improves the final visual effect and is well suited for determining the surface of the droplets. The simulation method was applied to create realistic animations of flowing liquid droplets of different types.