Modern Means of Graphic Disciplines Teaching for Extramural Students

When studying ''Engineering and Computer Graphics'' discipline, extramural students are faced with a number of difficulties. Age groups of these students differ from full-time students from behind a greater number of students related to more age categories. Also, unlike full-time students, the level of extramural students’ primary education is higher, but it has been acquired for a long time, and knowledge, in the vast majority of cases, leaves much to be desired. In addition to the described differences it is possible to report a lesser amount of free time, which an extramural student can use for his independent work because of his primary employment’s strained activity timetable. An important moment that plays a key role in discipline understanding is the complexity of "Engineering and Computer Graphics" subject itself, which requires drawing skills (in the school some students did not even have such a discipline) and the ability for spatial thinking. In the presented paper have been considered features on age groups, primary education and drawing skill level for two streams of extramural students learning on the "Railway Operations" specialty in the Russian University of Transport (MIIT). In view of students’ contingent peculiarities the use of modern teaching tools in the process of studying "Engineering and Computer Graphics" discipline has been suggested as a method for enhancement of effectiveness for understanding of educational material. As an illustration of obtained theoretical concepts has been presented a plan for carrying out a laboratory work on "Engineering and Computer Graphics" discipline using modern teaching techniques. In the process of performing the laboratory work, modern teaching tools are used, and after its completion the trainees receive a useful solid piece (a stand for a smartphone) made on a 3D printer, obtained with the help of a three-dimensional model prepared by students, that increases the efficiency of received material’s understanding.

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Lehen Hezkuntzarako kirol-jarduera fisikoko inplikazioaren galdeketa: faktore-analisi baieztatzailea

Tantak ◽

10.1387/tantak.19731 ◽

2019 ◽

Vol 30 (2) ◽

pp. 79-97

Author(s):

Iker Izar de la Fuente Díaz de Cerio ◽

Arantzazu Rodríguez Fernández ◽

Naira Escalante Mateos

Keyword(s):

Primary Education ◽

Internal Consistency ◽

Sport Activity ◽

Three Dimensional ◽

Sixth Grade ◽

Self Concept ◽

Three Dimensional Model ◽

Confirmatory Factor ◽

Variance Explained ◽

Activity Questionnaire

ABSTRACTBased on a previous pilot validation, once the internal consistency of the questionnaire of engagement in physical-sport activity (IMAF) for Primary Education is improved, a confirmatory factor analysis is carried out. In addition, external validity evidences are obtained by correlating the questionnaire with the physical self-concept. Finally, the variability of the physical-sport activity engagement regarding the sex and the intensity of the practice of physical activity is analysed. All that with a sample of 100 students of sixth grade of Primary Education (41% girls; 59% boys) aged between 11 and 12 (M = 11.89; SD = .314). The questionnaires IMAF (physical-sport engagement) and CAF-A (Shorten physical self-concept) have been used. The results of the research certify an improvement in internal consistency and in the percentage of total variance explained. Additionally, the structure of the questionnaire fits the proposed three-dimensional model. Lastly, it has been demonstrated that boys and people who practice physical-sport activity with high intensity show higher values in physical-sport engagement.KEYWORDS: engagement, physical-sport activity, questionnaire, validation, Primary Education. LABURPENAAurreko baliozkotze pilotu batetik abiaturik, Lehen Hezkuntzarako kirol-jarduera fisikoko inplikaziorako galdeketaren (IMAF) barne trinkotasuna behin hobetuta faktore-analisi baieztatzailea egiten da. Horretaz gain, itaunketa autokontzeptu fisikoarekin korrelazionatzean kanpo baliotasuneko ebidentziak lortzen dira. Azkenik galdeketaren aldagarritasuna sexuaren eta jarduera fisikoko praktikaren intentsitatearen arabera aztertzen da. Ikerketan Lehen Hezkuntzako seigarren mailako 100 ikaslek (% 41 neskak; % 59 mutilak) parte hartu dute, guztiak, 11 edo 12 urte izanez. Erabilitako itaunketak IMAF (kirol-jarduera fisikoko inplikazioa) eta CAF-A (autokontzeptu fisikoa laburbilduta) izan dira. Emaitzek barne trinkotasunean eta azaldutako bariantza totalaren portzentajean hobekuntza erakusten dute. Horretaz gain, itaunketaren egitura proposaturiko eredu tridimentsionalarekin bat dator. Amaitzeko, mutilak eta jarduera kirol-fisikoa intentsitate altuan praktikatzen dutenek inplikazio kirolfisikoan balio alturagoak erakusten dituztela frogatu da.GAKO-HITZAK: inplikazioa, kirol-jarduera fisikoa, galdeketa, baliozkotzea, Lehen Hezkuntza.

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Three-dimensional modelling of wheelchair contrived with lower limb exoskeleton for right hemiplegic dysfunction

Proceedings of the Institution of Mechanical Engineers Part H Journal of Engineering in Medicine ◽

10.1177/0954411920909053 ◽

2020 ◽

Vol 234 (7) ◽

pp. 651-659

Author(s):

AN Nithyaa ◽

S Poonguzhali ◽

N Vigneshwari

Keyword(s):

Lower Limb ◽

Computer Aided Design ◽

Age Groups ◽

Three Dimensional ◽

The Body ◽

Three Dimensional Model ◽

Design Quality ◽

Lower Limb Exoskeleton ◽

Repeated Exercise ◽

Aided Design

Hemiplegia is a type of paralysis that affects one side of the body due to stroke, characterizing severe weakness or rigid movement. Many people of different age groups are affected by this condition which cannot be completely cured but can be minimized through proper physiotherapy. A continuous and repeated exercise has to be given to the hemiplegic subjects to regain their motor function. To serve this purpose, a three-dimensional model of wheelchair contrived with lower limb exoskeleton is designed and motion analysis is done using SolidWorks. This virtual model of the object is created with the assistance of computer-aided design software. Professionals can be able to do the experiment on what-if scenarios with their three-dimensional designs, which helps to validate their devices and identify any snags with design quality. The pattern of behaviour of lower limb exoskeleton is predicted using SimMechanics in MATLAB.

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Serial Section-Based Three-Dimensional Reconstruction of Anaxagorea (Annonaceae) Carpel Vasculature and Implications for the Morphological Relationship between the Carpel and the Ovule

Plants ◽

10.3390/plants10102221 ◽

2021 ◽

Vol 10 (10) ◽

pp. 2221

Author(s):

Ya Li ◽

Wei Du ◽

Ye Chen ◽

Shuai Wang ◽

Xiao-Fan Wang

Keyword(s):

Three Dimensional ◽

Three Dimensional Model ◽

Floral Organogenesis ◽

Dimensional Reconstruction ◽

Long Time ◽

The Relationship ◽

Morphological Relationship ◽

Anatomical Evidence ◽

Bearing Part ◽

Complex Organ

Elucidating the origin of flowers has been a challenge in botany for a long time. One of the central questions surrounding the origin of flowers is how to interpret the carpel, especially the relationship between the phyllome part (carpel wall) and the ovule. Recently, consensus favors the carpel originating from the fusion of an ovule-bearing part and the phyllome part that subtends it. Considering the carpel is a complex organ, the accurate presentation of the anatomical structure of the carpel is necessary for resolving this question. Anaxagorea is the most basal genus in a primitive angiosperm family, Annonaceae. The conspicuous stipe at the base of each carpel makes it an ideal material for exploring the histological relationships among the receptacle, the carpel, and the ovule. In the present study, floral organogenesis and vasculature were delineated in Anaxagorea luzonensis and Anaxagorea javanica, and a three-dimensional model of the carpel vasculature was reconstructed based on serial sections. The results show that in Anaxagorea, the vasculature in the carpel branches in the form of shoots. The radiosymmetrical vasculature pattern is repeatedly presented in the receptacle, the carpel, and the funiculus of the ovule. This provides anatomical evidence of the composite origin of the carpel.

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Burnout among call center staff in the Rabat Sale Kenitra Region

E3S Web of Conferences ◽

10.1051/e3sconf/202131901074 ◽

2021 ◽

Vol 319 ◽

pp. 01074

Author(s):

E. Drissi ◽

S. Boulbaroud ◽

H. Hami ◽

A. Ahami ◽

F-Z. Azzaoui

Keyword(s):

Protective Effect ◽

Mental Health Professionals ◽

Call Center ◽

Age Groups ◽

Three Dimensional ◽

Dimensional Model ◽

Three Dimensional Model ◽

Center Staff ◽

Minimum Age ◽

The One

In Morocco, burnout remains a syndrome that is very little managed, but which nevertheless remains present and significantly affects the aids professions such as call center’s teleadvisors. The aim is to study burnout among call center staff in the Rabat, Sale and Kenitra Region using Maslash's three-dimensional model by detecting the socioeconomic factors that influence it. This study involved 121 individuals (59 men and 62 women) who responded to the MBI and to an informative questionary developed by us. The subjects have a minimum age of 22 years and a maximum age of 60 years and an average age of 31.74± 7.93.On the one hand, 13 subjects (10.74%) have a high risk of burnout, high scores of emotional exhaustion and depersonalization, and low personal achievement. The results of the gender impact were not significant. On the other hand, burnout is rarer in older age groups, which suggests that the experience of age would have a protective effect. Spirituality and sport could also have a protective effect. Burnout, very common in the aid professions, must be prevented in companies screened and taken care of by mental health professionals.

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Study on Statistical Method of Steel Bridge Parts Information Based on Three-Dimensional CAD

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.156-157.511 ◽

2010 ◽

Vol 156-157 ◽

pp. 511-516

Author(s):

Lei Chen ◽

Ming Ran Deng ◽

Zheng Feng Jiang

Keyword(s):

Computer Graphics ◽

Three Dimensional ◽

Steel Bridge ◽

Assembly Process ◽

Assembly Model ◽

Dimensional Model ◽

Three Dimensional Model ◽

Cad Systems ◽

Geometrical Information ◽

Relationship Of

Parts information of steel bridge with tens of thousands of parts is difficult to be managed and be executed statistics. On the platform of three-dimensional CAD systems, steel bridge node is the study object in this paper, according to the assembly relationship of all parts in the three-dimensional assembly model, the parts list, quantity, geometrical information and weight of the parts of the steel bridge nodes are extracted from a three-dimensional model by the application interface provided by three-dimensional CAD systems. On the basis of geometrical information of the parts, the minimum boundary dimension of the parts is computed by use of the principle of computer graphics. The method can rapidly and accurately obtain parts information, and can provide basis for assembly process and processing technology.

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Design and Workspace Analysis of a Differential Motion Rotary Style Breast Interventional Robot

Applied Bionics and Biomechanics ◽

10.1155/2020/8852228 ◽

2020 ◽

Vol 2020 ◽

pp. 1-15

Author(s):

Yongde Zhang ◽

Liyi Sun ◽

Dexian Liang ◽

Haiyan Du

Keyword(s):

Physical Model ◽

Interventional Procedure ◽

Three Dimensional ◽

Hydraulic Drive ◽

Positioning Error ◽

Three Dimensional Model ◽

Differential Motion ◽

Working Space ◽

Control Research ◽

Long Time

Introduction. Magnetic Resonance Imaging has better resolution for soft tissue; at the same time, the robot can work in a stable manner for a long time. MRI image-guided breast interventional robots have attracted much attention due to their minimally invasive nature and accuracy. In this paper, a hydraulic-driven MRI-compatible breast interventional robot is proposed to perform breast interventional procedure. Methods. First is the analysis of the design requirements of the hydraulic-driven MRI-compatible breast interventional robot, and then the design scheme is determined. Second, the three-dimensional model and the link frames are established. The workspace of the robot end point is solved by MATLAB/Simulink software. Then, the 3D printing technology is used to make a physical model of the MRI-compatible breast interventional robot. After assembly and debugging, the physical model is used for workspace verification, and the simulation result of the workspace shows that it is correct. Finally, the experimental research on the positioning error of the hydraulic drive is carried out, which established the theoretical foundation for the follow-up control research of the robot. Results. The positioning error has nothing to do with the motion distance, speed, and length of the selected tubing. The errors are 0.564 mm, 0.534 mm, and 0.533 mm at different distances of 40 mm, 80 mm, and 120 mm, respectively. The errors are 0.552 mm, 0.564 mm, and 0.559 mm at different speeds of 3 mm/s, 5 mm/s, and 8 mm/s, respectively. The errors are 0.564 mm, 0.568 mm, and 0.548 mm for different lengths of 0.5 m, 1 m, and 1.6 m, respectively. Then, the robot’s working space on the X O Z plane and the X O Y plane meets the conditions. Conclusion. The structure of a differential rotary breast interventional robot is determined, with the link frames assigned to the mechanism and the Denavit-Hartenberg parameters given. Workspace simulation of MRI-compatible breast interventional robot is done in MATLAB. The 3D printed MRI-compatible breast interventional robot is assembled and debugged to verify that its working space and positioning error meet the requirements.

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The walking dead: Blender as a tool for paleontologists with a case study on extinct arachnids

Journal of Paleontology ◽

10.1666/13-088 ◽

2014 ◽

Vol 88 (4) ◽

pp. 735-746 ◽

Cited By ~ 45

Author(s):

Russell Garwood ◽

Jason Dunlop

Keyword(s):

Computer Graphics ◽

Learning Curve ◽

Three Dimensional ◽

Data File ◽

Dimensional Model ◽

Three Dimensional Model ◽

Steep Learning Curve ◽

The Walking Dead ◽

Data Files

This paper serves two roles. First, it acts as an introduction to Blender, an open-source computer graphics program, which can be of utility to paleontologists. To lessen the software's otherwise steep learning curve, a step-by-step guide to create an idealized reconstruction of a fossil in the form of a three-dimensional model in Blender, or to use the software to render results from ‘virtual paleontology' techniques, is provided as an online supplemental data file. Second, here we demonstrate the use of Blender with a case study on the extinct trigonotarbid arachnids. We report the limb articulations of members of the Devonian genusPalaeocharinuson the basis of exceptionally preserved fossils from the Rhynie Cherts of Scotland. We use these newly reported articulations to create a Blender model, and draw comparisons with the gait of extant arachnids to produce as accurate a representation of the trigonotarbid flexing its limbs and walking as possible, presented in additional online supplemental data files. Knowledge of the limb articulations of trigonotarbid arachnids also allows us to discuss their functional morphology: trigonotarbids' limbs and gait were likely comparable to extant cursorial spiders, but lacked some innovations seen in more derived arachnids.

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Improved 3-D reconstruction using stereo computer graphics and multiple tilt EM images

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100139524 ◽

1995 ◽

Vol 53 ◽

pp. 630-631

Author(s):

Lee D. Peachey ◽

Lou Fodor ◽

John C. Haselgrove ◽

Stanley M. Dunn ◽

Junqing Huang

Keyword(s):

Computer Graphics ◽

High Performance ◽

Transverse Section ◽

Three Dimensional ◽

Stereo Pair ◽

3D Reconstructions ◽

Video Cameras ◽

Biological Objects ◽

Microscope Images ◽

High Performance Computer

Stereo pairs of electron microscope images provide valuable visual impressions of the three-dimensional nature of specimens, including biological objects. Beyond this one seeks quantitatively accurate models and measurements of the three dimensional positions and sizes of structures in the specimen. In our laboratory, we have sought to combine high resolution video cameras with high performance computer graphics systems to improve both the ease of building 3D reconstructions and the accuracy of 3D measurements, by using multiple tilt images of the same specimen tilted over a wider range of angles than can be viewed stereoscopically. Ultimately we also wish to automate the reconstruction and measurement process, and have initiated work in that direction.Figure 1 is a stereo pair of 400 kV images from a 1 micrometer thick transverse section of frog skeletal muscle stained with the Golgi stain. This stain selectively increases the density of the transverse tubular network in these muscle cells, and it is this network that we reconstruct in this example.

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