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Journal articles on the topic 'Geometry synthesis'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Ghica, Dan R. "Geometry of synthesis." ACM SIGPLAN Notices 42, no. 1 (2007): 363–75. http://dx.doi.org/10.1145/1190215.1190269.

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Ianici, Draghiţa. "Contributions to the synthesis and modeling of gear wheels geometry of a double harmonic transmission." Studia Universitatis Babeș-Bolyai Engineering 65, no. 1 (2020): 37–44. http://dx.doi.org/10.24193/subbeng.2020.1.4.

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The paper presents the geometric synthesis and modeling of the geometry of the three gear wheels (flexible, fixed rigid and mobile rigid) of a double harmonic transmission. The geometric design of the wheels and their teeth was made by using particular relationships that resulted by imposing the specific conditions of harmonic engagement that exist between these wheels.Modeling of the 3D geometry of the wheel gears of the considered double harmonic transmission was performed in the SolidWorks CAD program, based on the geometric parameters resulting from performing the geometric synthesis

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Rastegar, J., and B. Fardanesh. "Geometric Synthesis of Manipulators Using the Monte Carlo Method." Journal of Mechanical Design 112, no. 3 (1990): 450–52. http://dx.doi.org/10.1115/1.2912629.

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A new approach to the solution of problems of geometric synthesis of manipulators is presented. It utilizes the Monte Carlo method, is general, and can be applied to any type of manipulator. Joint motion limitations can be included. The task space may have any arbitrary geometry. The allowable manipulator installation space is determined. Synthesis for a specified number of possible configurations (branches), and optimization of task space geometry are discussed.

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Ghica, Dan R., and Alex Smith. "Geometry of synthesis III." ACM SIGPLAN Notices 46, no. 1 (2011): 345–56. http://dx.doi.org/10.1145/1925844.1926425.

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Ghica, Dan R., Alex Smith, and Satnam Singh. "Geometry of synthesis iv." ACM SIGPLAN Notices 46, no. 9 (2011): 221–33. http://dx.doi.org/10.1145/2034574.2034805.

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6

Wang, Lvdi, Yizhou Yu, Kun Zhou, and Baining Guo. "Example-based hair geometry synthesis." ACM Transactions on Graphics 28, no. 3 (2009): 1–9. http://dx.doi.org/10.1145/1531326.1531362.

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7

Girsh, A. "New Problems of Descriptive Geometry. Continuation." Geometry & Graphics 9, no. 4 (2022): 3–10. http://dx.doi.org/10.12737/2308-4898-2022-9-4-3-10.

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Complex geometry is a synthesis of Euclidean E-geometry (circle geometry) and pseudo-Euclidean M-geometry (hyperbola geometry). Each of them individually defines a non-closed system in which a correctly posed problem may not give a solution. Analytical geometry represents a closed system. In it, a correctly posed problem always gives solutions in the form of complex numbers, for each of which, one of the parts may be equal to zero. Finding imaginary solutions and imaginary figures formed by a set of such solutions is a new problem in descriptive geometry. Degenerated conics and quadrics, or cu

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Vysokovych, Yevhen, and Andrii Koval. "Synthesis of basic geometry parameters of excavator working equipment." Bulletin of Kharkov National Automobile and Highway University, no. 99 (December 29, 2022): 105. http://dx.doi.org/10.30977/bul.2219-5548.2022.99.0.105.

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Problem. Single-bucket excavators have become one of the most popular machines today, which are widely used to perform a variety of construction works. The working area or service area is one of the main characteristics of the work equipment of the manipulation type. It must meet certain requirements, which are: the largest digging depth, unloading height and digging radius at the level of the parking lot. To ensure the parameters of the given working area, it is necessary to correctly select the basic geometry of the working equipment: the length of the boom and the handle, the turning radius

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Battocchio, Andrea. "Hilbert's Synthesis on Foundation of Geometry." Journal of Humanities and Education Development 1, no. 6 (2019): 273–85. http://dx.doi.org/10.22161/jhed.1.6.3.

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Qingshan Zhang, Z. Liu, Gaining Quo, D. Terzopoulos, and Heung-Yeung Shum. "Geometry-driven photorealistic facial expression synthesis." IEEE Transactions on Visualization and Computer Graphics 12, no. 1 (2006): 48–60. http://dx.doi.org/10.1109/tvcg.2006.9.

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SEQUIN, CARLO H., and JORDAN SMITH. "PARAMETERIZED PROCEDURAL SYNTHESIS OF ARTISTIC GEOMETRY." International Journal of Shape Modeling 05, no. 01 (1999): 81–99. http://dx.doi.org/10.1142/s0218654399000095.

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12

Braunschweig, Holger, and Frank M. Breitling. "Constrained geometry complexes—Synthesis and applications." Coordination Chemistry Reviews 250, no. 21-22 (2006): 2691–720. http://dx.doi.org/10.1016/j.ccr.2005.10.022.

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13

Levin, Georgii Dmitrievich. "Gnoseological research of geometric (by origin) method of analysis and synthesis." Философская мысль, no. 12 (December 2020): 1–14. http://dx.doi.org/10.25136/2409-8728.2020.12.34503.

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The subject of this research in the method of finding proof of theoretical hypotheses based on their content. It demonstrated that historically this method emerged in geometry, and thus is called geometric (by origin) method of analysis and synthesis. Then it was shifted to mechanics by Galileo, and later to other sciences, never obtaining the status of the universal method for confirming theoretical hypotheses. The author conducts gnoseological analysis of this method. First, gnoseological analysis of the three initial forms is carried out on the basis of the three elementary geometric theore

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14

Zhang, Yan Hua, Xiu Ju Du, and Bai Yong Zhang. "Synthesis and Analysis of 4-DOF Parallel Manipulators of Computer Aided Geometry Approach." Advanced Materials Research 912-914 (April 2014): 1010–16. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.1010.

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A novel computer aided geometry approach for type synthesis and analysis of new spatial 4-DOF parallel manipulators is put forward, and create the computer simulation mechanisms of parallel manipulators using the geometric constraints and dimension driving techniques in CAD software, Based on the computer simulation mechanisms of parallel manipulators, several new spatial 4-DOF parallel manipulators are synthesized, the kinematic characteristics of the moving platforms are analyzed by computer simulation. The results of computer simulation prove that the computer aided geometric approach for s

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Husty, Manfred L., Martin Pfurner, Hans-Peter Schröcker, and Katrin Brunnthaler. "Algebraic methods in mechanism analysis and synthesis." Robotica 25, no. 6 (2007): 661–75. http://dx.doi.org/10.1017/s0263574707003530.

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SUMMARYAlgebraic methods in connection with classical multidimensional geometry have proven to be very efficient in the computation of direct and inverse kinematics of mechanisms as well as the explanation of strange, pathological behavior. In this paper, we give an overview of the results achieved within the last few years using the algebraic geometric method, geometric preprocessing, and numerical analysis. We provide the mathematical and geometrical background, like Study's parametrization of the Euclidean motion group, the ideals belonging to mechanism constraints, and methods to solve pol

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16

Tavakkoli, S., and S. G. Dhande. "Shape Synthesis and Optimization Using Intrinsic Geometry." Journal of Mechanical Design 113, no. 4 (1991): 379–86. http://dx.doi.org/10.1115/1.2912793.

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The present paper outlines a method of shape synthesis using intrinsic geometry to be used for two-dimensional shape optimization problems. It is observed that the shape of a curve can be defined in terms of intrinsic parameters such as the curvature as a function of the arc lenght. The method of shape synthesis, proposed here, consists of selecting a shape model, defining a set of shape design variables and then evaluating Cartesian coordinates of a curve. A shape model is conceived as a set of continuous piecewise linear segments of the curvature; each segment defined as a function of the ar

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Wei, Jiangnan, Ziyi Yue, Shuai Li, et al. "An Index of Refraction Adaptive Neural Refractive Radiance Field for Transparent Scenes." Electronics 14, no. 6 (2025): 1073. https://doi.org/10.3390/electronics14061073.

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Reconstructions and novel view syntheses of transparent object scenes are of great significance in numerous fields such as design, animation, and scientific research. The refraction of transparent objects brings challenges to the reconstruction of the geometry and radiance fields. Traditional photogrammetry methods and Neural Radiance Fields (NeRFs) establish geometric relationships based on the rectilinear propagation of light rays and thus fail in refraction scenes. In addition, different transparent objects have significantly different indexes of refraction (IORs) due to differences in mate

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18

Chan, C., and A. P. Pisano. "On The Synthesis of Cams With Irregular Followers." Journal of Mechanical Design 112, no. 1 (1990): 36–41. http://dx.doi.org/10.1115/1.2912576.

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This paper extends the envelope theory for plate cam geometry design to irregular-surface follower systems. Analytical description of cam profiles for general com-follower systems is derived and an example is solved to demonstrate the method carried out in the numerical form. A constraint equation approach, which uses geometric constraints between two planar objects in contact, is also described and used to verify the results provided by the envelope theory method.

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19

Chen, Shuo, Binbin Yan, Xinzhu Sang, et al. "Bidirectional Optical Flow NeRF: High Accuracy and High Quality under Fewer Views." Proceedings of the AAAI Conference on Artificial Intelligence 37, no. 1 (2023): 359–68. http://dx.doi.org/10.1609/aaai.v37i1.25109.

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Neural Radiance Fields (NeRF) can implicitly represent 3D-consistent RGB images and geometric by optimizing an underlying continuous volumetric scene function using a sparse set of input views, which has greatly benefited view synthesis tasks. However, NeRF fails to estimate correct geometry when given fewer views, resulting in failure to synthesize novel views. Existing works rely on introducing depth images or adding depth estimation networks to resolve the problem of poor synthetic view in NeRF with fewer views. However, due to the lack of spatial consistency of the single-depth image and t

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20

Sonawane, Shirish H., Sarang P. Gumfekar, Kunal H. Kate, et al. "Hydrodynamic Cavitation-Assisted Synthesis of Nanocalcite." International Journal of Chemical Engineering 2010 (2010): 1–8. http://dx.doi.org/10.1155/2010/242963.

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A systematic study was made on the synthesis of nanocalcite using a hydrodynamic cavitation reactor. The effects of various parameters such as diameter and geometry of orifice,CO2flow rate, andCa(OH)2concentration were investigated. It was observed that the orifice diameter and its geometry had significant effect on the carbonation process. The reaction rate was significantly faster than that observed in a conventional carbonation process. The particle size was significantly affected by the reactor geometry. The results showed that an orifice with 5 holes of 1 mm size resulted in the particle

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21

Ma, Xin, Jiguang Zhang, Peng Lu, Shibiao Xu, and Chengwei Pan. "Novel View Synthesis Under Large-Deviation Viewpoint for Autonomous Driving." Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 6 (2025): 6000–6008. https://doi.org/10.1609/aaai.v39i6.32641.

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Novel view synthesis is a critical task in autonomous driving. Although 3D Gaussian Splatting (3D-GS) has shown success in generating novel views, it faces challenges in maintaining high-quality rendering when viewpoints deviate significantly from the training set. This difficulty primarily stems from complex lighting conditions and geometric inconsistencies in texture-less regions. To address these issues, we propose an attention-based illumination model that leverages light fields from neighboring views, enhancing the realism of synthesized images. Additionally, we propose a geometry optimiz

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22

Reiser, Christian, Stephan Garbin, Pratul Srinivasan, et al. "Binary Opacity Grids: Capturing Fine Geometric Detail for Mesh-Based View Synthesis." ACM Transactions on Graphics 43, no. 4 (2024): 1–14. http://dx.doi.org/10.1145/3658130.

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While surface-based view synthesis algorithms are appealing due to their low computational requirements, they often struggle to reproduce thin structures. In contrast, more expensive methods that model the scene's geometry as a volumetric density field (e.g. NeRF) excel at reconstructing fine geometric detail. However, density fields often represent geometry in a "fuzzy" manner, which hinders exact localization of the surface. In this work, we modify density fields to encourage them to converge towards surfaces, without compromising their ability to reconstruct thin structures. First, we emplo

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23

Zbiek, Rose Mary. "The Pentagon Problem: Geometric Reasoning with Technology." Mathematics Teacher 89, no. 2 (1996): 86–90. http://dx.doi.org/10.5951/mt.89.2.0086.

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We value the use of technology in mathematics learning and teaching, and we want students to reason and to explore mathematical ideas in their mathematics courses. In recent years, such computing tools as The Geometer's Sketchpad (1991) and Cabri Geometry II (1994) allow us to devise and operate on geometric figures similarly as symbolic manipulators allow us to work with algebraic expressions. In this article, we call these tools figure manipulators. These tools make it possible for students to explore and connect geometric ideas from synthetic, analytic, and transformational perspectives. Ye

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24

Yu, Shangshu, Xiaotian Sun, Wen Li, et al. "STGC-NeRF: Spatial-Temporal Geometric Consistency for LiDAR Neural Radiance Fields in Dynamic Scenes." Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 9 (2025): 9644–52. https://doi.org/10.1609/aaai.v39i9.33045.

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While Neural Radiance Fields (NeRFs) have advanced the frontiers of novel view synthesis (NVS) using LiDAR data, they still struggle in dynamic scenes. Due to the low frequency and sparsity characteristics of LiDAR point clouds, it is challenging to spontaneously learn a dynamic and consistent scene representation from posed scans. In this paper, we propose STGC-NeRF, a novel LiDAR NeRF method that combines spatial-temporal geometry consistency to enhance the reconstruction of dynamic scenes. First, we propose a temporal geometry consistency regularization to enhance the regression of time-var

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25

Nuriswaty, Kartika Sulistiya, Sadrack Luden Pagiling, and Nurhayati Nurhayati. "Visuospatial reasoning of eighth-grade students in solving geometry problems: A gender perspective." Beta: Jurnal Tadris Matematika 13, no. 2 (2020): 152–67. http://dx.doi.org/10.20414/betajtm.v13i2.400.

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[English]: Visuospatial reasoning is indispensable in solving mathematical problems, especially geometry. However, many students face difficulty in visuospatial reasoning. This qualitative study aims to describe eighth-grade students' visuospatial reasoning in solving geometry problems in terms of gender differences. One male and one female student with high mathematics ability were involved. A test and interview were utilized to collect data. The test was used to investigate students' visuospatial reasoning and the interview was administered to confirm students' reasoning. Students’ test and

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26

Baratti, Greta, Davide Potrich, Sang Ah Lee, Anastasia Morandi-Raikova, and Valeria Anna Sovrano. "The Geometric World of Fishes: A Synthesis on Spatial Reorientation in Teleosts." Animals 12, no. 7 (2022): 881. http://dx.doi.org/10.3390/ani12070881.

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Fishes navigate through underwater environments with remarkable spatial precision and memory. Freshwater and seawater species make use of several orientation strategies for adaptative behavior that is on par with terrestrial organisms, and research on cognitive mapping and landmark use in fish have shown that relational and associative spatial learning guide goal-directed navigation not only in terrestrial but also in aquatic habitats. In the past thirty years, researchers explored spatial cognition in fishes in relation to the use of environmental geometry, perhaps because of the scientific v

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27

Kuang, Zhengfei, Kyle Olszewski, Menglei Chai, Zeng Huang, Panos Achlioptas, and Sergey Tulyakov. "NeROIC." ACM Transactions on Graphics 41, no. 4 (2022): 1–12. http://dx.doi.org/10.1145/3528223.3530177.

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We present a novel method to acquire object representations from online image collections, capturing high-quality geometry and material properties of arbitrary objects from photographs with varying cameras, illumination, and backgrounds. This enables various object-centric rendering applications such as novel-view synthesis, relighting, and harmonized background composition from challenging in-the-wild input. Using a multi-stage approach extending neural radiance fields, we first infer the surface geometry and refine the coarsely estimated initial camera parameters, while leveraging coarse for

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28

Miranda Jr., Gastão F., Gilson Giraldi, Carlos E. Thomaz, and Daniel Millàn. "Composition of Local Normal Coordinates and Polyhedral Geometry in Riemannian Manifold Learning." International Journal of Natural Computing Research 5, no. 2 (2015): 37–68. http://dx.doi.org/10.4018/ijncr.2015040103.

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The Local Riemannian Manifold Learning (LRML) recovers the manifold topology and geometry behind database samples through normal coordinate neighborhoods computed by the exponential map. Besides, LRML uses barycentric coordinates to go from the parameter space to the Riemannian manifold in order to perform the manifold synthesis. Despite of the advantages of LRML, the obtained parameterization cannot be used as a representational space without ambiguities. Besides, the synthesis process needs a simplicial decomposition of the lower dimensional domain to be efficiently performed, which is not c

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29

Voloshinov, Denis Vyacheslavovich. "A single constructive algorithm for constructing foci of second-order curves." Программные системы и вычислительные методы, no. 3 (March 2023): 10–17. http://dx.doi.org/10.7256/2454-0714.2023.3.26429.

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The article is devoted to the analysis of some geometric schemes and discussion of the issues arising in this connection of the theory of constructing second-order curves by methods of constructive synthesis. The article shows that the currently used definitions of the center of the second-order curve and the diameters of these curves conflict with the principle of indistinguishability of conics in projective geometry. The ways of eliminating these contradictions are proposed and a unified algorithm for constructing foci of second-order curves is developed on their basis. The author's reasonin

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Raj, Prem, Ashvin K. Aggarvval, and Kiran Sinchal. "Synthesis and Geometry of Complex Triorcanoantimony(V) Cations." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 22, no. 10 (1992): 1471–94. http://dx.doi.org/10.1080/15533179208020271.

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31

Lattman, Michael, S. A. Morse, A. H. Cowley, J. G. Lasch, and N. C. Norman. "Synthesis, spectral properties, and geometry of a metallophosphorane." Inorganic Chemistry 24, no. 9 (1985): 1364–66. http://dx.doi.org/10.1021/ic00203a020.

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32

Nguyen, Minh X., Xiaoru Yuan, and Baoquan Chen. "Geometry completion and detail generation by texture synthesis." Visual Computer 21, no. 8-10 (2005): 669–78. http://dx.doi.org/10.1007/s00371-005-0315-1.

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33

Razavi, S. M. J., M. R. Ayatollahi, and F. Berto. "A synthesis of geometry effect on brittle fracture." Engineering Fracture Mechanics 187 (January 2018): 94–102. http://dx.doi.org/10.1016/j.engfracmech.2017.10.022.

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34

Ran, Ling-Qiang, and Xiang-Xu Meng. "Geometry Texture Synthesis Based on Laplacian Texture Image." Journal of Computer Science and Technology 25, no. 3 (2010): 606–13. http://dx.doi.org/10.1007/s11390-010-9349-6.

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35

Ilies¸, Horea T., and Vadim Shapiro. "Equivalence Classes for Shape Synthesis of Moving Mechanical Parts." Journal of Computing and Information Science in Engineering 4, no. 1 (2004): 20–27. http://dx.doi.org/10.1115/1.1641794.

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Moving parts in contact have been traditionally synthesized through specialized techniques that focus on completely specified nominal shapes. Given that the functionality does not completely constrain the geometry of any given part, the design process leads to arbitrarily specified portions of geometry, without providing support for systematic generation of alternative shapes satisfying identical or altered functionalities. Hence the design cycle of a product is forced to go into numerous and often redundant iterative stages that directly impact its effectiveness. We argue that the shape synth

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36

Abadjieva, Emilia. "Kinematic Theory of Spatial Rack Drives." Applied Mechanics and Materials 851 (August 2016): 265–72. http://dx.doi.org/10.4028/www.scientific.net/amm.851.265.

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On the basis of performed vector analysis of spatial motion transformation of type rotation into translation is created a kinematic theory of this transformation type. Using the kinematic theory the basic kinematic-geometric characteristics of spatial rack mechanisms, applicable to their analysis and synthesis are initiated. These characteristics: kinematic cylinder of level, kinematic relative helicoids, and kinematic pitch surfaces are elements of kinematic geometry of the spatial rack drives

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Abadjieva, Emilia V. "On the Study of the Active Tooth Surfaces’ Geometry of the Spatial Rack Drives." International Journal of Engineering and Technology 16, no. 1 (2024): 39–45. http://dx.doi.org/10.7763/ijet.2024.v16.1252.

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In this study, a spatial rack system, that transforms a rotation motion into rectilinear translation by means of a cylindrical worm and a helical rack is considered. This type of motions’ transformation is realized by the conjugated active flanks of the worm and the gear rack. This paper deals with the theoretical approach to their synthesis. It is based on the second principle of T. Olivier. The obtained equations of the surfaces of the spatial rack drive are of importance when the algorithms for the synthesis of this type of mechanism are elaborated.

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Liu, Lingjie, Marc Habermann, Viktor Rudnev, Kripasindhu Sarkar, Jiatao Gu, and Christian Theobalt. "Neural actor." ACM Transactions on Graphics 40, no. 6 (2021): 1–16. http://dx.doi.org/10.1145/3478513.3480528.

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We propose Neural Actor (NA), a new method for high-quality synthesis of humans from arbitrary viewpoints and under arbitrary controllable poses. Our method is developed upon recent neural scene representation and rendering works which learn representations of geometry and appearance from only 2D images. While existing works demonstrated compelling rendering of static scenes and playback of dynamic scenes, photo-realistic reconstruction and rendering of humans with neural implicit methods, in particular under user-controlled novel poses, is still difficult. To address this problem, we utilize

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Juneja, H. D., Manisha Joshi, and J. P. Kanfade. "Synthesis and Characterization of Metallic Gel Complexes Derived from Carboxymethyl Cellulose." Journal of Chemistry 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/820328.

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The oxaloyl carboxymethyl cellulose (OCMC) complexes of Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) metal ions have been synthesized and the coordination of OCMC in these complexes has been investigated through IR spectra, reflectance spectra, and thermal analysis. On the basis of spectral and thermal data an octahedral geometry was assigned to[Mn(II)OCMC(H2O)2]nand[Co(II)OCMC(H2O)2]n, square planar geometry was assigned to[Cu(II)OCMC]n, and tetrahedral geometry was assigned to[Ni(II)OCMC]nand[Zn(II)OCMC]nMetallic Gel complexes.

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Zhao, Zhi, Ninad Chamele, Michael Kozicki, Yu Yao, and Chao Wang. "Photochemical synthesis of dendritic silver nano-particles for anti-counterfeiting." Journal of Materials Chemistry C 7, no. 20 (2019): 6099–104. http://dx.doi.org/10.1039/c9tc01473j.

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Han, Youcheng, Weizhong Guo, Changjie Zhao, Ziyue Li, Ze Fu, and Yinghui Li. "Updating structural synthesis methodology of mechanisms: from kinematic geometry to kinematic geometry accompanied with statics." Mechanism and Machine Theory 192 (February 2024): 105516. http://dx.doi.org/10.1016/j.mechmachtheory.2023.105516.

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42

Chen, F. Z., and M. J. Tsai. "CONSTRUCTION OF SCREW GEOMETRY VIA 3-D CAD SYSTEM FOR THE ANALYSIS AND SYNTHESIS OF SPATIAL MECHANISMS." Transactions of the Canadian Society for Mechanical Engineering 24, no. 2 (2000): 401–13. http://dx.doi.org/10.1139/tcsme-2000-0032.

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This paper investigates the application of computer-aided design and drawing (CAD) software to the kinematic analysis and synthesis of spatial mechanisms based upon screw geometry. The advantages of the graphic method for the synthesis and analysis of mechanisms are straightforward, comprehensive, clearly represented, and easy to correlate to a real mechanism. Using conventional 3-D CAD software, the screw axes and joint axes are constructed as virtual parts. The relationships of joint axes that are constrained by screw geometry are the assembly conditions for the virtual parts in the CAD syst

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Durango Idárraga, Sebastián, Mariline C. Delgado Martínez, César A. Álvarez Vargas, Rubén D. Flórez Hurtado, and Manuel A. Flórez Ruiz. "Diseño cinemático de un robot paralelo 2-PRR." Scientia et Technica 25, no. 3 (2020): 372–79. http://dx.doi.org/10.22517/23447214.24161.

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In civil construction Abstract— This paper presents a dimensional synthesis for a 2-PRR planar parallel robot with a structural plane of symmetry. This robot can achieve the translation of the moving platform without changing the orientation, being useful for applications that require controlled positions with high rigidity. Because the performance of parallel robots is highly sensitive to their geometric parameters, many methodologies to state the dimensional synthesis has been developed. We used the method of Parameter - Finiteness Normalization Method (PFNM) to state the dimensional synthes

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A. Aziz, Kawakib, and Farah T. Saeed. "Synthesis and characterization of a number of complexes of Pt(II), Pd(II), Cd(II) and Zn(II) with new ligands containing oxygen." Bulletin of the Chemical Society of Ethiopia 39, no. 7 (2025): 1349–61. https://doi.org/10.4314/bcse.v39i7.9.

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New mononuclear complexes of some transition metal ion with di-dentate ligand have been synthetized and characterized. The Pt(II), Pd(II), Cd(II) and Zn(II) complexes were synthesized by directly reaction of the above ligand with metal chlorides in (1:1) (ligand:metal) molar ratio in ethanolic medium. Formulated complexes classified by elementary analysis, spectral exploration (FTIR, UV/Vis), 1H-NMR measure, conduction measure and electronic spectra rates suggest tetrahedral geometric for every metal complex, with the exception of Pt(II) complexes, which have octahedral geometry, and Pd(II) co

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Cahtarevic, Rada, and Adna Proho. "Geometric modeling and complexity - a conceptual approach in architectural design and education." Spatium, no. 42 (2019): 35–40. http://dx.doi.org/10.2298/spat1942035c.

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By encompassing abstraction and patterned information, the new fields of geometry and mathematical models of complex dynamic spatial systems provide a new method for spatial modeling. Different approaches to the application of spatial modeling in architectural design are possible, taking into consideration on the one hand the theoretical background and knowledge of geometry, and on the other, advanced computational techniques. The generative principles of complex dynamic spatial formation allow parallels between the differentiated representations and directions of approach to spatial organizat

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Peters, David W., and Richard G. Blair. "Mechanochemical synthesis of an organometallic compound: a high volume manufacturing method." Faraday Discuss. 170 (2014): 83–91. http://dx.doi.org/10.1039/c3fd00157a.

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Chemical vapor deposition (CVD) precursor chemicals are held to some of the highest purity levels in industry. Many metal reagents form stable, unbreakable adducts with the coordinating solvents that are necessary for solvating highly polar reagents. These adducts are undesirable and must be removed prior to usage. Herein we describe a mechanochemical approach to the synthesis of bis(n-propyltetramethylcyclopentadienyl)strontium that eliminates the use of strongly coordinating solvents. This method overcomes the solubility problems of the two reagents without the formation of stable, unbreakab

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Lelyukhin, Vladimir Egorovich, and Olga Valeryevna Kolesnikova. "Geometry of real objects in shipbuilding and ship repair." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2020, no. 1 (2020): 31–44. http://dx.doi.org/10.24143/2073-1574-2020-1-31-44.

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The article considers the modern engineering practice of designing and manufacturing that uses various analytical and graphic forms representing geometric objects. Both of these forms are characterized by the presence of two problems in terms of production practice: 1 - tools of modern geometry cannot operate with non-ideal forms and configurations of material objects; 2 - lack of methods and tools for describing patterns of generating geometric objects, from production lines to the structure that characterizes the relative location of surfaces. The generalized provisions of the geometry of no

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Dr Manju Bala. "Singularities and Metric Structures in Sub-Riemannian Geometries with Applications to Control Theory." International Journal of Scientific Research in Science, Engineering and Technology 12, no. 3 (2025): 359–63. https://doi.org/10.32628/ijsrset251248.

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Sub-Riemannian geometry extends classical Riemannian frameworks by defining metrics only on constrained directions within manifolds, naturally modeling systems with nonholonomic constraints. This paper investigates the nature and impact of singularities—points where the geometric structure or metric degenerates—on the local and global properties of sub-Riemannian manifolds. We analyze metric behavior near singularities through nilpotent approximations and study their influence on geodesic existence, uniqueness, and stability, with particular emphasis on abnormal geodesics. Further, we explore

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IVANOVA, Katerina, and Oksana LIBA. "ORGANIZATION OF TEACHING ELEMENTS OF GEOMETRY FOR FUTURE PRIMARY SCHOOL TEACHERS." Cherkasy University Bulletin: Pedagogical Sciences, no. 2 (2024): 94–99. http://dx.doi.org/10.31651/2524-2660-2024-2-94-99.

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Introduction. The article deals with the problem of organizing the teaching of geometric figures to future primary school teachers. The study of this topic is a key aspect of the formation of professional competence of future teachers. The purpose of the study is to analyze the methods of teaching geometry used in the training of future teachers and to offer recommendations for their improvement. Theoretical and practical aspects of teach-ing, including the development of teaching materials, are considered. Modern approaches to teaching geometry that take into account pedagogical technologies

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Levin, Georgy. "Anti-realistic and Non-classical Theories of Analysis and Synthesis." Philosophical anthropology 7, no. 2 (2021): 188–210. http://dx.doi.org/10.21146/2414-3715-2021-7-2-188-210.

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The article shows that three antirealistic theories of classical analysis and synthesis are logically possible: presentationistic, solipsistic and Kantian, but only the latter is actually being developed. Revealed its specific features and features shared with other, logically possible antirealistic theories. The correlation of the Kantian theory of analysis and synthesis of knowledge with his theory of analysis and synthesis of subjects of knowledge is analyzed. Gnoseological problems that forced Kant to assert that new knowledge is provided only by the synthesis of knowledge, and analysis on

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