Log in

Relevant bibliographies by topics / Dynamic and Interactive geometry / Journal articles

To see the other types of publications on this topic, follow the link: Dynamic and Interactive geometry.

Journal articles on the topic 'Dynamic and Interactive geometry'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Dynamic and Interactive geometry.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Ponchio, F., and K. Hormann. "Interactive Rendering of Dynamic Geometry." IEEE Transactions on Visualization and Computer Graphics 14, no. 4 (2008): 914–25. http://dx.doi.org/10.1109/tvcg.2008.35.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Jasutė, Eglė, and Valentina Dagienė. "Interaktyviojo geometrijos vizualizavimo modelis naudojant dinaminės geometrijos paradigmą." Informacijos mokslai 56 (January 1, 2011): 31–41. http://dx.doi.org/10.15388/im.2011.0.3153.

Full text

Abstract:

Straipsnyje analizuojama interaktyviojo geometrijos vizualizavimo samprata, atskleidžiamos dinaminės geometrijos konstravimo problemos. Pateikiami interaktyviojo vizualizavimo dinaminėje geometrijoje didaktiniai principai: bendrieji, skirti visai veiklos sričiai, ir specialieji, skirti interaktyviam vaizdui. Apibūdinami interaktyviojo vizualizavimo dinaminėje geometrijoje konstravimo principai: geometriniam brėžiniui ir interaktyviam vaizdui. Straipsnyje pateikiamas interaktyviojo vizualizavimo modelis naudojant dinaminės geometrijos paradigmą. Aprašomas modelio taikymo pavyzdys vizualizuojant

APA, Harvard, Vancouver, ISO, and other styles

3

Battista, Michael T. "Learning Geometry in a Dynamic Computer Environment." Teaching Children Mathematics 8, no. 6 (2002): 333–39. http://dx.doi.org/10.5951/tcm.8.6.0333.

Full text

Abstract:

NCTM's Principles and Standards for School Mathematics suggests that interactive geometry software can be used to enhance student learning (2000). This article shows how using such software can foster the development of students' understanding and reasoning about two-dimensional shapes. The article first describes basic principles that underlie high-quality geometry instruction, then gives examples that illustrate how appropriate use of dynamic software can enhance students' geometric reasoning.

APA, Harvard, Vancouver, ISO, and other styles

4

Embse, Charles Vonder, and Arne Engebretsen. "Technology Tips: Using Interactive-Geometry Software for Right-Angle Trigonometry." Mathematics Teacher 89, no. 7 (1996): 602–5. http://dx.doi.org/10.5951/mt.89.7.0602.

Full text

Abstract:

A student's first contact with right-angle trigonometry is usually a diagram like figure 1, showing a right triangle with the vertices labeled A, B, and C; the sides labeled appropliately a, b, and c; and the ratios using the adjacent side, opposite side, and hypotenuse displayed. Students compute the ratios for several, at most, numerical examples that show the trigonometric ratios for different angles. But what if students could actually explore this and other trigonometlic relationships in a straightforward, dynamic, and accurate way? Instead of doing a few static examples, what if students

APA, Harvard, Vancouver, ISO, and other styles

5

Moyer, Todd O. "Non-Geometry Mathematics and The Geometer's Sketchpad." Mathematics Teacher 99, no. 7 (2006): 490–95. http://dx.doi.org/10.5951/mt.99.7.0490.

Full text

Abstract:

The Geometer's Sketchpad (GSP) is a well-known interactive geometry software package. Its usefulness in geometry instruction has been well researched (Choi-Koh 1999; Dixon 1997; Groman 1996; Lester 1996; Moyer 2003; Weaver and Quinn 1999). Finzer and Jackiw (1998) recommend the use of GSP as the dynamic manipulative for geometric concepts. GSP allows students to construct a figure, to perform measurements of lengths and angles, and then to “click and drag” any part or parts of that figure to look for change.

APA, Harvard, Vancouver, ISO, and other styles

6

Bagher, Mahdi Mohammad, Cyril Soler, Kartic Subr, Laurent Belcour, and Nicolas Holzschuch. "Interactive Rendering of Acquired Materials on Dynamic Geometry Using Frequency Analysis." IEEE Transactions on Visualization and Computer Graphics 19, no. 5 (2013): 749–61. http://dx.doi.org/10.1109/tvcg.2012.298.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Medeiros, Margarete Farias, Debora Valletta, Elizete Maria Possamai Ribeiro, Katelyn Luzia Dos Santos Daboit, and Evandro Bitencourt Magagnin. "A Atenção Voluntária na Construção de Conceitos Trigonométricos em Ambientes de Geometria Dinâmica." Revista Brasileira de Informática na Educação 25, no. 01 (2017): 77. http://dx.doi.org/10.5753/rbie.2017.25.01.77.

Full text

Abstract:

This article presents the results of the project, obtained through didactic sequences applications. The objective was to investigate the voluntary attention span of students when subjected to Dynamic Geometry Environment (GDE) in the exploration of trigonometric concepts. To carry out the didactic sequences was used GeoGebra software, a free Dynamic Geometry Environment software that allows the identification of algebraic and geometric concepts simultaneously in an interactive interface and simples. The methodology used, regarding the approach of the problem, was defined as qualitative, regard

APA, Harvard, Vancouver, ISO, and other styles

8

Amghar, B., and M. Daoud. "Quantum state manifold and geometric, dynamic and topological phases for an interacting two-spin system." International Journal of Geometric Methods in Modern Physics 17, no. 02 (2020): 2050030. http://dx.doi.org/10.1142/s0219887820500309.

Full text

Abstract:

We consider a two-spin system of [Formula: see text] Heisenberg type submitted to an external magnetic field. Using the associated [Formula: see text] geometry, we investigate the dynamics of the system. We explicitly give the corresponding Fubini–Study metric. We show that for arbitrary pure initial states, the dynamics occurs on a torus. We compute the geometric phase, the dynamic phase and the topological phase. We investigate the interplay between the torus geometry and the entanglement of the two spins. In this respect, we provide a detailed analysis of the geometric phase, the dynamics v

APA, Harvard, Vancouver, ISO, and other styles

9

Jasute, Egle, and Valentina Dagiene. "Towards Digital Competencies in Mathematics Education." International Journal of Digital Literacy and Digital Competence 3, no. 2 (2012): 1–19. http://dx.doi.org/10.4018/jdldc.2012040101.

Full text

Abstract:

Technological innovation has influenced learning, and teachers have suggested different ways of use for digital equipment, to improve learning and to achieve better outcomes from their students. Today’s youth has grown up with digital technology and has lived immersed in environments populated by computers, video games, digital music players, video cameras, cell phones, and thousands of other toys and tools of the digital age. It is for this reason that the authors are persuaded that education in the 21st century should be directed to use digital resources as well as digital ways of teaching i

APA, Harvard, Vancouver, ISO, and other styles

10

Bautista Niño, Carlos Rene. "Development of the communicative process in teaching and learning geometry through interactive mathematics software." Revista de Investigação e Divulgação em Educação Matemática 3, no. 1 (2019): 73–95. http://dx.doi.org/10.34019/2594-4673.2019.v3.27816.

Full text

Abstract:

This qualitative approach research project, aims to strengthen the communication process in teaching and learning of mathematics, through resolution of geometric problems in an interactive mathematics software environment in 4th and 5th grade students of the escuela rural La Chacara, in the municipality of Santa Bárbara (Santander). Who excels at communicating, can also interpret and express situations in regard of mathematical contexts in a determined and specific language. These communicative abilities in the solution of a mathematical problem are cognitively related actions that imply verba

APA, Harvard, Vancouver, ISO, and other styles

11

Reiten, Lindsay. "Promoting Student Understanding through Virtual Manipulatives." Mathematics Teacher 111, no. 7 (2018): 545–48. http://dx.doi.org/10.5951/mathteacher.111.7.0545.

Full text

Abstract:

The number of collections and the capabilities of virtual manipulatives (VMs) has grown considerably during the past twenty-plus years. A VM is “an interactive Web-based visual representation of a dynamic object that presents opportunities for constructing mathematical knowledge” (Moyer, Bolyard, and Spikell 2002). VMs come in a variety of platforms (e.g., java, html5, flash, cdf, etc.) and as apps for tablets (e.g., iPad and Android). Additionally, I consider preconstructed dynamic geometry objects (e.g., dynamic worksheets constructed and published using GeoGebra) as VMs due to the interacti

APA, Harvard, Vancouver, ISO, and other styles

12

Scher, Daniel. "Teaching with Technology: Dynamic Visualization and Proof: A New Approach to a Classic Problem." Mathematics Teacher 96, no. 6 (2003): 394–98. http://dx.doi.org/10.5951/mt.96.6.0394.

Full text

Abstract:

IN 2001–2002, THREE TEACHERS from Paul Robeson High School in Brooklyn, New York, joined an international collaboration to pilot U.S.-Russian Interactive Geometry (Armontrout et al. 2002) labs in their classrooms.

APA, Harvard, Vancouver, ISO, and other styles

13

Alqahtani, Muteb M., and Arthur B. Powell. "Teachers’ Instrumentation of a Collaborative Dynamic Geometry Environment." Horizontes 36, no. 1 (2018): 172–83. http://dx.doi.org/10.24933/horizontes.v36i1.649.

Full text

Abstract:

We draw on the theory of instrumental genesis (RABARDEL; BEGUIN, 2005) and the notion of co-action (HEGEDUS; MORENO-ARMELLA, 2010) to understand how teachers’ instrumentation of dynamic geometry environment (DGE) and how this instrumentation shapes their geometric knowledge. In small groups, six middle and high school mathematics teachers engaged in solving open-ended geometric problems in an online dynamic geometry environment for 15 weeks. Our analysis of their interactions indicates that the co-action between the teachers and the environment helped them appropriate the dragging feature of D

APA, Harvard, Vancouver, ISO, and other styles

14

Klančar, Andreja, Andreja Istenič Starčič, Mara Cotič, and Amalija Žakelj. "Problem-Based Geometry in Seventh Grade: Examining the Effect of Path-Based Vs. Conventional Instruction on Learning Outcomes." International Journal of Emerging Technologies in Learning (iJET) 16, no. 12 (2021): 16. http://dx.doi.org/10.3991/ijet.v16i12.21349.

Full text

Abstract:

This experimental study examined the impact of learning and teaching ge-ometry in seventh-grade geometry education comparing learning-path and conventional instruction. According to constructivism, a learning path with the use of learning objects should enhance learner autonomy and self-directedness by providing differentiated instruction. We designed a model of path-based geometry learning in a learning management system–based learning environment with the use of dynamic geometry programs and applets, which fosters visualisation and the exploration of geometric concepts through the manipulati

APA, Harvard, Vancouver, ISO, and other styles

15

R. Richard, Philippe, Michel Gagnon, Josep Maria Fortuny, Nicolas Leduc, and Michèle Tessier-Baillargeon. "Means of Choice for Interactive Management of Dynamic Geometry Problems Based on Instrumented Behaviour." American Journal of Computational Mathematics 03, no. 03 (2013): 41–51. http://dx.doi.org/10.4236/ajcm.2013.33b008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Čučaković, Aleksandar, and Biljana Jović. "Constructive geometry education by contemporary technologies." SAJ - Serbian Architectural Journal 3, no. 3 (2011): 164–83. http://dx.doi.org/10.5937/saj1102164c.

Full text

Abstract:

Contemporary technological development (CAD/CAM/CAE, VR, AR, MR) made conventional methods of Descriptive and Constructive Geometry uncompleted. Application and use of new technologies in Constructive geometry requires educational process with the aim to have complete knowledge of all fields that belong to this area. The aspect and results research shows that knowledge acquired in this way by using new technology, develops students' skills that are very important in senior years of studies, particularly in the field of engineering design. Interactive dynamic 3D geometry could not be achieved b

APA, Harvard, Vancouver, ISO, and other styles

17

Westhoven, Tim E., C. L. Philip Chen, Yoh-Han Pao, and Steven R. LeClair. "Episodal associative memory approach for sequencing interactive features in process planning." Artificial Intelligence for Engineering Design, Analysis and Manufacturing 6, no. 3 (1992): 177–97. http://dx.doi.org/10.1017/s0890060400003061.

Full text

Abstract:

Process planning is the function that converts an engineering design into a manufacturing plan. One of the problems in feature-based process planning is the sequencing of features. Features must be given an order for removal. This order, or sequence, is partially dependent on the geometric relationships between the features. If the geometric relationships between features are such that they dictate a particular sequence, the features are said to have an interaction. Identifying these interactions is an important first step in creating the process plan. An approach to solve this problem using c

APA, Harvard, Vancouver, ISO, and other styles

18

Lepellere, Maria Antonietta, Francesco Zucconi, Nizar Salahi Al Asbahi, and Alberto Carminati. "INTERACTIVE TOOLS FOR LINEAR ALGEBRA: GEOUNIUD." SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 6 (May 20, 2020): 678. http://dx.doi.org/10.17770/sie2020vol6.4999.

Full text

Abstract:

GeoUniud is a user-friendly platform built-in interactive tutors which allow students to investigate specific tasks by selecting their own input values and working through a problem in a step-by-step fashion together with immediate feedback at each step. Lessons and exercises are stored and organized with a careful use of randomized controlled contents as exercises, geometrical pictures and abstract reasoning. The lessons are augmented by a virtually infinite collection of examples, and by interactive representations of concepts. As example we show the design of two interactive tools about lin

APA, Harvard, Vancouver, ISO, and other styles

19

Vo, Duc-Hoang, Huu-Hung Huynh, and Jean Meunier. "Geometry-based Dynamic Hand Gesture Recognition." Journal of Science and Technology: Issue on Information and Communications Technology 1 (August 31, 2015): 13. http://dx.doi.org/10.31130/jst.2015.6.

Full text

Abstract:

Hand gestures play an important role in communication in the hard-of-hearing community. They are used to convey information instead of words. Besides, a system which is developed to identify gestures can be also used for human-computer interaction. In this paper, we propose a vision-based approach for recognizing dynamic hand gestures. Our processing consists of three main stages: pre-processing, feature extraction and recognition. The first stage involves two sub-stages: segmentation which locates the hand and extracts the corresponding silhouette using color information; separation that remo

APA, Harvard, Vancouver, ISO, and other styles

20

Pham, Tuan Minh, and Yves Bertot. "A Combination of a Dynamic Geometry Software With a Proof Assistant for Interactive Formal Proofs." Electronic Notes in Theoretical Computer Science 285 (September 2012): 43–55. http://dx.doi.org/10.1016/j.entcs.2012.06.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Pereira, Lucas Rodrigues, Mario Guimarães Gomes, Nicson Nongelle Gomes Pinheiro, Jaqueline Maria da Silva, Deborah Faragó Jardim, and Alexandre Faissal Brito. "USANDO O GEOGEBRA PARA O ENSINO DE SÓLIDOS DE REVOLUÇÃO." Ciência e Natura 39, no. 3 (2017): 666. http://dx.doi.org/10.5902/2179460x25400.

Full text

Abstract:

This research was developed based on the principles of the Didactic Engineering, to study and discuss the contributions that the use of the GeoGebra software may offer to understanding of mathematics concepts often used to evaluate areas and volumes of revolution solids. Was applied a didactic intervention using GeoGebra to a group of students to propitiate them knowledge enough to work with a the interactive dynamic geometry interconnecting it to empirical and formal concepts of Spatial Geometry, improving their dimensional view and preparing them for teaching Geometry. After analysis and dis

APA, Harvard, Vancouver, ISO, and other styles

22

Terzopoulos, Demetri, and Hong Qin. "Dynamic NURBS with geometric constraints for interactive sculpting." ACM Transactions on Graphics 13, no. 2 (1994): 103–36. http://dx.doi.org/10.1145/176579.176580.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

He, Yong, Guo Fu Ding, Yi Sheng Zou, Mei Wei Jia, and Ming Heng Xu. "Object-Oriented Modeling and Simulation of Railway Vehicle Systems." Applied Mechanics and Materials 26-28 (June 2010): 900–904. http://dx.doi.org/10.4028/www.scientific.net/amm.26-28.900.

Full text

Abstract:

An object-oriented modeling method was proposed to develop a simulation software package named GVDS which could be used to predict some aspects of dynamic behavior of railway vehicle. The package based on multi-body dynamics mainly consists of three parts, an interactive pre-processor, the solver and an interactive post-processor. With UML, demands and structure of the software package are represented. By modeling of the geometry and behavior of each object, virtual prototype of railway vehicle is formed and by the simulation, the critical speed of hunting stability, wheel-rail contact forces

APA, Harvard, Vancouver, ISO, and other styles

24

Astafieva, Mariіa М., Dmytro M. Bodnenko та Volodymyr V. Proshkin. "ВИКОРИСТАННЯ КОМП’ЮТЕРНО ОРІЄНТОВАНИХ ЗАСОБІВ ГЕОМЕТРІЇ У ПРОЦЕСІ ФОРМУВАННЯ КРИТИЧНОГО МИСЛЕННЯ МАЙБУТНІХ УЧИТЕЛІВ МАТЕМАТИКИ". Information Technologies and Learning Tools 71, № 3 (2019): 102. http://dx.doi.org/10.33407/itlt.v71i3.2449.

Full text

Abstract:

The article proved that critical thinking is one of the most important and universal competences of a modern teacher of mathematics. It has been established that geometric disciplines, in particular constructive and projective geometries, have the greatest potential for this. The pedagogical technology of critical thinking formation of future teachers of mathematics by means of geometry has been developed. This technology consists of a target, content and legal, and control component. It was found out that the essential element of the technology at all stages (substantive and procedural, contr

APA, Harvard, Vancouver, ISO, and other styles

25

Gansner, Emden R., Yifan Hu, and Stephen C. North. "Interactive Visualization of Streaming Text Data with Dynamic Maps." Journal of Graph Algorithms and Applications 17, no. 4 (2013): 515–40. http://dx.doi.org/10.7155/jgaa.00302.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Wu, Yao, Lihua Yang, Tengfei Xu, and Haoliang Xu. "Interactive Effects of Rarefaction and Surface Roughness on Aerodynamic Lubrication of Microbearings." Micromachines 10, no. 2 (2019): 155. http://dx.doi.org/10.3390/mi10020155.

Full text

Abstract:

The aerodynamic lubrication performance of gas microbearing has a particularly critical impact on the stability of the bearing-rotor system in micromachines. Based on the Duwensee’s slip correction model and the fractal geometry theory, the interactive effects of gas rarefaction and surface roughness on the static and dynamic characteristics were investigated under various operation conditions and structure parameters. The modified Reynolds equation, which governs the gas film pressure distribution in rough bearing, is solved by employing the partial derivative method. The results show that hi

APA, Harvard, Vancouver, ISO, and other styles

27

Cevikbas, Mustafa, and Gabriele Kaiser. "A Systematic Review on Task Design in Dynamic and Interactive Mathematics Learning Environments (DIMLEs)." Mathematics 9, no. 4 (2021): 399. http://dx.doi.org/10.3390/math9040399.

Full text

Abstract:

Task design constitutes a growing core of research in mathematics education. In particular, task design in Dynamic and Interactive Mathematics Learning Environments (DIMLEs) has become very popular, although it remains under-researched. This study aims to systematically analyze the current state of research on task design in DIMLEs. The literature was searched through the Web of Science, and 10 articles were included in the review. Results show that the majority of research studies were undertaken in Asia, with a focus on secondary and higher education. Studies used design-based research, case

APA, Harvard, Vancouver, ISO, and other styles

28

Shawki, T. G. "The Phenomenon of Shear Strain Localization in Dynamic Viscoplasticity." Applied Mechanics Reviews 45, no. 3S (1992): S46—S61. http://dx.doi.org/10.1115/1.3121391.

Full text

Abstract:

This article addresses shear flow localization during high rates of deformation of thermal viscoplastic materials. An overview of several efforts towards an improved understanding of shear band formation is given. This paper aims at extracting a unified framework towards the analysis of shear band formation for the considered class of deformations. For this purpose, we present a number of rigorous exact solutions for the one–dimensional simple shearing deformation of a general class of thermal viscoplastic material response. These solutions are used as benchmarks for the validation of both ana

APA, Harvard, Vancouver, ISO, and other styles

29

Anghel, Anamaria Andreea, Irina Mohora, Alma-Dia Preda (Hapenciuc), Diana Giurea, and Flaviu Mihai Frigura-Iliasa. "ENVIRONMENTAL TENDENCIES IN MODULAR GREEN INSTALLATIONS." Journal of Green Building 14, no. 4 (2019): 195–221. http://dx.doi.org/10.3992/1943-4618.14.4.195.

Full text

Abstract:

There are two main approaches when discussing living green walls: an ecological one and an artistic one. Ecological thinking mainly considers environmental aspects, comfort enhancement and energy consumption and oversees human interaction and actual proximity to plants. In opposition, art or architecture installations that involve vegetation, lack technical and ecological aspects, aiming to raise awareness on environmental issues using human interaction either physically (direct) or emotionally (indirect). The present paper aims to analyze methods of combining the two directions, in a function

APA, Harvard, Vancouver, ISO, and other styles

30

Chen, Yaxiong, and Zhennan Zhang. "Dynamic Fracture Simulation by Using a Discretized Virtual Internal Bond with a Regular Hexagon Cell." International Journal of Computational Methods 14, no. 06 (2017): 1750066. http://dx.doi.org/10.1142/s0219876217500669.

Full text

Abstract:

The discretized virtual internal bond (DVIB) is a newly developed lattice bond method for fracture simulation. The discrete structure of the DVIB method is composed of unit bond cells, which can take any geometry with any number of bonds. Hence, the DVIB is able to represent the meso-structural characters of a material composed of micro-grains. The regular hexagon is fully symmetrical in geometry, isotropic with respect to fracture propagation and has more failure directions than the usual triangular cell. Due to its geometric advantages, the regular hexagon is adopted as the unit cell of DVIB

APA, Harvard, Vancouver, ISO, and other styles

31

Cavalca, Katia Lucchesi, and Fabio Tadeu Peggau Jacon. "Didactic Software for the Design of Rotative Shafts." International Journal of Mechanical Engineering Education 30, no. 3 (2002): 189–203. http://dx.doi.org/10.7227/ijmee.30.3.1.

Full text

Abstract:

The present work proposes the development of a program in Visual Basic to the didactics improvement in teaching machine components design, focusing the calculation procedures adopted in the design of rotative shafts, considering its dynamic behaviour as the fundamental influence in the vibrational response of a rotative machine. The design and diameters evaluation of the component, previous to its integration as a part of the rotative machine group, is done in a software developed in Visual Basic, with an interactive interface with the user, that models a presented shaft with loads, geometry a

APA, Harvard, Vancouver, ISO, and other styles

32

Tuluk, Guler. "Meaningful learning approach in dynamic and interactive learning environment: plan for a geometry class on “point, line, surface, object”." International Journal of Academic Research 5, no. 4 (2013): 384–98. http://dx.doi.org/10.7813/2075-4124.2013/5-4/b.57.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Sanderasagran, Ashwindran Naidu, Azizuddin Abd Aziz, and Daing Mohamad Nafiz Daing Idris. "REAL-TIME COMPUTATIONAL FLUID DYNAMICS FLOW RESPONSE VISUALISATION AND INTERACTION APPLICATION BASED ON AUGMENTED REALITY." Journal of Information and Communication Technology 19, Number 4 (2020): 559–81. http://dx.doi.org/10.32890/jict2020.19.4.5.

Full text

Abstract:

The behaviour of fluid flow is a complex paradigm for cognitive interpretation and visualisation. Engineers need to visualise the behaviour mechanics of flow field response in order to enhance the cognitive ability in problem solving. Therefore, mixed reality related technology is the solution for enhanced virtual interactive learning environment. However, there are limited augmented reality platforms on fluid flow interactive learning. Therefore, an interactive education application is proposed for students and engineers to interact and understand the complex flow behaviour pattern subjected

APA, Harvard, Vancouver, ISO, and other styles

34

Nechaev, Yu I. "Ontological synthesis of non-stationary dynamics models of on-board intelligence systems." Ontology of designing 11, no. 1 (2021): 117–25. http://dx.doi.org/10.18287/2223-9537-2021-11-1-117-125.

Full text

Abstract:

An ontological synthesis of models for interpreting non-stationary dynamics in onboard intelligence systems operating in the emergency computing mode (Urgent Computing - UC) is considered. The ontological system of a dynamic knowledge base is formulated on the basis of theoretical models of the modern catastrophe theory (СT). The analysis and forecast of the evolutionary dynamics of a non-stationary object is implemented in a multiprocessor computing environment. Within the framework of the ontological system, an approach to the interpretation of non-stationary dy-namics using fractal geometry

APA, Harvard, Vancouver, ISO, and other styles

35

Ágh, Csaba. "Comparative Analysis of Axlebox Accelerations in Correlation with Track Geometry Irregularities." Acta Technica Jaurinensis 12, no. 2 (2019): 161–77. http://dx.doi.org/10.14513/actatechjaur.v12.n2.501.

Full text

Abstract:

Stochastic track irregularities influence additional dynamic forces developed in the vehicle-track interaction that lead to faster deterioration of track. For economical track maintenance it is important to understand the relationship between the irregularities recorded by conventional track geometry measuring car and the resulting dynamic vehicle responses. This paper focuses on the correlation between lateral and vertical axlebox accelerations and differently processed track geometry parameters based on a real measurement run on straight track. Decolouring of chord-offset measurement results

APA, Harvard, Vancouver, ISO, and other styles

36

Cheyne, William S., Alexandra M. Williams, Megan I. Harper, and Neil D. Eves. "Heart-lung interaction in a model of COPD: importance of lung volume and direct ventricular interaction." American Journal of Physiology-Heart and Circulatory Physiology 311, no. 6 (2016): H1367—H1374. http://dx.doi.org/10.1152/ajpheart.00458.2016.

Full text

Abstract:

Chronic obstructive pulmonary disease (COPD) is associated with dynamic lung hyperinflation (DH), increased pulmonary vascular resistance (PVR), and large increases in negative intrathoracic pressure (nITP). The individual and interactive effect of these stressors on left ventricular (LV) filling, emptying, and geometry and the role of direct ventricular interaction (DVI) in mediating these interactions have not been fully elucidated. Twenty healthy subjects were exposed to the following stressors alone and in combination: 1) inspiratory resistive loading of −20 cmH2O (nITP), 2) expiratory res

APA, Harvard, Vancouver, ISO, and other styles

37

Gao, Jianmin, Wanming Zhai, and Yi Guo. "Wheel–rail dynamic interaction due to rail weld irregularity in high-speed railways." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 232, no. 1 (2016): 249–61. http://dx.doi.org/10.1177/0954409716664933.

Full text

Abstract:

Rail weld geometry irregularity is one of the main excitation sources for vehicle–track coupled dynamic system, and it has a direct effect on the wheel–rail dynamic interactions, which are responsible further for the wheel–rail noise, railway component damages, and track deteriorations. In many previous studies, the rail weld irregularity was usually modeled as a single or composite concave cosine wave based on field investigations on traditional railway lines or researchers’ experiences. These investigations were mainly concentrated on the maximum value of the rail weld irregularity. However,

APA, Harvard, Vancouver, ISO, and other styles

38

Smith-Johnsen, Silje, Basile de Fleurian, and Kerim H. Nisancioglu. "The role of subglacial hydrology in ice streams with elevated geothermal heat flux." Journal of Glaciology 66, no. 256 (2020): 303–12. http://dx.doi.org/10.1017/jog.2020.8.

Full text

Abstract:

AbstractThe spatial distribution of geothermal heat flux (GHF) under ice sheets is largely unknown. Nonetheless, it is an important boundary condition in ice-sheet models, and suggested to control part of the complex surface velocity patterns observed in some regions. Here we investigate the effect of including subglacial hydrology when modelling ice streams with elevated GHF. We use an idealised ice stream geometry and a thermomechanical ice flow model coupled to subglacial hydrology in the Ice Sheet System Model (ISSM). Our results show that the dynamic response of the ice stream to elevated

APA, Harvard, Vancouver, ISO, and other styles

39

Zou, Chuang, Tao Tao, Gedong Jiang, Xuesong Mei, and Junhui Wu. "A harmonic drive model considering geometry and internal interaction." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 4 (2016): 728–43. http://dx.doi.org/10.1177/0954406215621097.

Full text

Abstract:

A new harmonic drive model considering the geometry, internal interactions and assembly error of key parts is proposed in this paper. In this model, a single tooth pair is used to represent the transmission mechanism of harmonic drive. The meshing stiffness between the flexspline and the circular spline, the torsional stiffness of the flexspline cylinder, and the radial stiffness of the thin-walled ball bearing are included and formulated. The kinematic error is fitted using a low-velocity test, and its generating mechanism is analysed. The friction of the harmonic drive is formulated at the t

APA, Harvard, Vancouver, ISO, and other styles

40

Wahab, Rohani Abd, Abdul Halim Abdullah, Mahani Mokhtar, Noor Azean Atan, and Mohd Salleh Abu. "Evaluation by Experts and Designated Users on the Learning Strategy using SketchUp Make for Elevating Visual Spatial Skills and Geometry Thinking." Bolema: Boletim de Educação Matemática 31, no. 58 (2017): 819–40. http://dx.doi.org/10.1590/1980-4415v31n58a15.

Full text

Abstract:

Abstract The teaching and learning of Geometry should be meaningful and not merely reacting to the teacher's stimuli. Hence, students should be given opportunities to experiment when learning mathematics through exploration and investigation of geometric shapes by themselves. For that reason, a Learning Strategy for 3-dimensional Geometry using the SketchUp Make dynamic software, called LSPE-SUM was designed through a step-by-step instruction to help students to improve their visual spatial skills and geometric thinking. Visual spatial skills were carefully integrated onto each van Hiele level

APA, Harvard, Vancouver, ISO, and other styles

41

Mote, Kevin. "Fast Point-Feature Label Placement for Dynamic Visualizations." Information Visualization 6, no. 4 (2007): 249–60. http://dx.doi.org/10.1057/palgrave.ivs.9500163.

Full text

Abstract:

This paper describes a fast approach to automatic point label de-confliction on interactive maps. The general Map Labeling problem is NP-hard and has been the subject of much study for decades. Computerized maps have introduced interactive zooming and panning, which has intensified the problem. Providing dynamic labels for such maps typically requires a time-consuming pre-processing phase. In the realm of visual analytics, however, the labeling of interactive maps is further complicated by the use of massive datasets laid out in arbitrary configurations, thus rendering reliance on a pre-proces

APA, Harvard, Vancouver, ISO, and other styles

42

Radu, R., and R. Taccani. "SIMULINK-FEMLAB Integrated Dynamic Simulation Model for a PEM Fuel Cell System." Journal of Fuel Cell Science and Technology 3, no. 4 (2006): 452–58. http://dx.doi.org/10.1115/1.2349528.

Full text

Abstract:

The necessity for reliable simulation models, able to support the fuel cell systems development activity, has increased continuously during the last years. The present work proposes a model which integrates the finite element method in a dynamic simulation, in order to achieve higher accuracy and the possibility to investigate the influence of various parameters on the fuel cell dynamics. The model is implemented using MATLAB/SIMULINK and consists of two interacting main subsystems that calculates the fuel cell power response and the stack thermal behavior. The first simulates the mass transpo

APA, Harvard, Vancouver, ISO, and other styles

43

Wang, Yi Jia, and Jing Zeng. "Effect of Wheel-Rail Contact Geometry Relationship on Vehicle Dynamic Performance." Advanced Materials Research 712-715 (June 2013): 1541–44. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1541.

Full text

Abstract:

With the rapid development of high-speed railways, wheel and rail wear has become increasingly serious due to the acute wheel-rail interaction. During the operation of high speed vehicle, complicated wheel-rail contact force will lead to wheel profile wear, which will worsen the dynamic performance of vehicle system, or even influence the safe operation of vehicles. In order to ensure the vehicle dynamic performance, right now regularly wheel re-profiling has to be adopted. Therefore, the study of wheel profile wear and its effect on vehicle dynamic performance is very important [1,. The purpo

APA, Harvard, Vancouver, ISO, and other styles

44

Sun, Y. Q., and C. Cole. "Comprehensive wagon-track modelling for simulation of three-piece bogie suspension dynamics." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 221, no. 8 (2007): 905–17. http://dx.doi.org/10.1243/09544062jmes434.

Full text

Abstract:

A wagon-track dynamics interaction model has been developed to investigate the dynamics of suspensions with friction wedge dampers that are widely used in three-piece bogie wagons in Australia. The wagon is modelled using 66 degrees-of-freedom, accounting for the three-dimensional movements of all wagon components. The mass of the wedge has also been modelled. The track is modelled with rails as Timoshenko beams and discretely supported by the spring and damper elements representing the elasticity of pads, fasteners, and ballast. An assumed track geometry irregularity, i.e. top surface profile

APA, Harvard, Vancouver, ISO, and other styles

45

Huang, Chuang, Ming Liu, and Yongqiang Zhao. "An Analytical Model of Multiarc Sprag Clutch considering Geometry and Internal Interaction during Engagement." Shock and Vibration 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/2393578.

Full text

Abstract:

A new multiarc sprag clutch model considering geometry and internal interaction during engagement is proposed in this paper. To increase the accuracy of the model, an improved model of geometric deformation coordination is presented to describe the basic geometrical quantities after rotation of the sprag. Then, based on this model, a novel nonlinear iteration method focusing on the varied contact radius is proposed to compute the normal contact force and show a good agreement with the FEM model. In addition, the alternate friction model considering stationary and rate-dependency friction is fo

APA, Harvard, Vancouver, ISO, and other styles

46

HAGHVERDI, ESFANDIAR. "Unique decomposition categories, Geometry of Interaction and combinatory logic." Mathematical Structures in Computer Science 10, no. 2 (2000): 205–30. http://dx.doi.org/10.1017/s0960129599003035.

Full text

Abstract:

In another paper (Abramsky et al. 1999), we have developed Abramsky's analysis of Girard's Geometry of Interaction programme in detail. In this paper, our goal is to study the data ow based computational aspects of that analysis. We introduce unique decomposition categories that provide a suitable categorical framework for such computational analysis. The current study also serves to establish connections with the work on proof nets and paths by Girard and Danos and Regnier in this categorical setting. The latter goal is partially achieved here by the presentation of categorical models for dyn

APA, Harvard, Vancouver, ISO, and other styles

47

Shawky, A. M., and M. A. Elbestawi. "An Enhanced Dynamic Model in Turning Including the Effect of Ploughing Forces." Journal of Manufacturing Science and Engineering 119, no. 1 (1997): 10–20. http://dx.doi.org/10.1115/1.2836546.

Full text

Abstract:

In this paper computer simulation of cutting process dynamics in turning, using a mechanistic cutting force model, is significantly enhanced by incorporating a dynamic ploughing force model. The ploughing forces are decomposed into static and dynamic components. The effect of tool feed on increasing the clearance face contact is described mechanistically. The ploughing model is developed for the complex geometry of a multi-edge cutting tool and the effect of integrated tool/workpiece vibrations is considered. The cutting process damping is predicted by tracking the dynamic ploughed volume resu

APA, Harvard, Vancouver, ISO, and other styles

48

Hamano, Masahiro. "A MALL geometry of interaction based on indexed linear logic." Mathematical Structures in Computer Science 30, no. 10 (2020): 1025–53. http://dx.doi.org/10.1017/s0960129521000062.

Full text

Abstract:

AbstractWe construct a geometry of interaction (GoI: dynamic modelling of Gentzen-style cut elimination) for multiplicative-additive linear logic (MALL) by employing Bucciarelli–Ehrhard indexed linear logic MALL(I) to handle the additives. Our construction is an extension to the additives of the Haghverdi–Scott categorical formulation (a multiplicative GoI situation in a traced monoidal category) for Girard’s original GoI 1. The indices are shown to serve not only in their original denotational level, but also at a finer grained dynamic level so that the peculiarities of additive cut eliminati

APA, Harvard, Vancouver, ISO, and other styles

49

Privé, Nikki C., and R. Alan Plumb. "Monsoon Dynamics with Interactive Forcing. Part I: Axisymmetric Studies." Journal of the Atmospheric Sciences 64, no. 5 (2007): 1417–30. http://dx.doi.org/10.1175/jas3916.1.

Full text

Abstract:

Abstract The applicability of axisymmetric theory of angular momentum conserving circulations to the large-scale steady monsoon is studied in a general circulation model with idealized representations of continental geometry and simple physics. Results from an aquaplanet setup with localized subtropical forcing are compared with a continental case. It is found that the meridional circulation that develops is close to angular momentum conserving for cross-equatorial circulation cells, both in the aquaplanet and in the continental cases. The equator proves to be a substantial barrier to boundary

APA, Harvard, Vancouver, ISO, and other styles

50

Waliszewski, P., M. Molski, and J. Konarski. "On the relationship between fractal geometry of space and time in which a system of interacting cells exists and dynamics of gene expression." Acta Biochimica Polonica 48, no. 1 (2001): 209–20. http://dx.doi.org/10.18388/abp.2001_5128.

Full text

Abstract:

We report that both space and time, in which a system of interacting cells exists, possess fractal structure. Each single cell of the system can restore the hierarchical organization and dynamic features of the entire tumor. There is a relationship between dynamics of gene expression and connectivity (i.e., interconnectedness which denotes the existence of complex, dynamic relationships in a population of cells leading to the emergence of global features in the system that would never appear in a single cell existing out of the system). Fractal structure emerges owing to non-bijectivity of dyn

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!