On the Right Parameterization of 3D Models - Case Study

2014 ◽  
Vol 657 ◽  
pp. 715-719
Author(s):  
Ionuţ Lambrescu ◽  
Ion Pană
Keyword(s):  
Degrees Of Freedom ◽  
3D Models ◽  
Point Of View ◽  
Geometric Constraints ◽  
Teaching Process ◽  
E Learning ◽  
On Line ◽  
The Right ◽  
Independent Parameters

All students in mechanical engineering courses receive training in using at least one parametric and associative 3D modeler. From the point of view of the logic behind the geometric design, a very important issue is how to parameterize the model, or put in other words, how to achieve the right balance between dimensions, as independent parameters, formulas (linking dimensions) and geometric constraints (parallel, concentric, horizontal etc.). We arrive following this logic to the notion of degrees of freedom of the model, as expressing the number of dimensions still free for a dynamic edit. The papers aim is to provide a case study capable to assist students in understanding how a good model could be built. The case study will be integrated in an on-line course, offered by our university as an expression of its commitment in developing e-learning applications [.The paper proposes a slightly different approach, compared with the ones presented in [2, 3, . While in the mentioned sources a graph approach is considered, our paper proposes a matrix oriented analysis, coupled with a live analysis of the model behavior. The paper also proposes different other models as good examples to be used in the teaching process.

scholarly journals An Analysis of the Skill Shortage Problems in Indian IT Companies

2018 ◽  
Vol 7 (9) ◽  
pp. 159
Author(s):  
Suchandra Paul
Keyword(s):  
Social Issue ◽  
Final Section ◽  
Point Of View ◽  
Theoretical Point ◽  
Skills Shortage ◽  
Depth Analysis ◽  
The Right ◽  
Skill Shortages

Skill shortage is a crucial social issue which needs to be analyzed thoroughly in any organization. In this paper, the problems related to the skill shortage are analyzed and possible solutions are provided to deal with the problem of skill shortages effectively. This paper will facilitate in helping the organization to find the right talent for the organization thus removing or decreasing the problem of skill shortages. The paper begins with the importance of skills shortage from a theoretical point of view. The problems associated are highlighted and analyzed. The factors which are an integral part of skill shortages are elaborated. Also, an in-depth analysis is carried out by considering the organizations, Tata Consultancy Services and Infosys as a case study. In the final section, various solutions and approaches are laid down to tackle the problems incorporated with skill shortages.

scholarly journals DISCOVERING AND SHARING OF SECRET ARCHITECTURES: THE HIDDEN TOMB OF THE PHARAOH OF EL-KHASNEH, JORDAN

2017 ◽  
Vol XLII-2/W3 ◽  
pp. 459-465 ◽  
Author(s):  
E. S. Malinverni ◽  
R. Pierdicca
Keyword(s):  
3D Models ◽  
Research Community ◽  
Ease Of Use ◽  
Environmental Condition ◽  
Web Based ◽  
Archaeological Heritage ◽  
Close Proximity ◽  
On Line ◽  
Minimal Hardware

The documentation of the archaeological heritage through 3D models to know ancient findings, has become a common practice within the international panorama. Using minimal hardware, as well as its ease of use in almost every environmental condition, make 3D sampling solutions based on Multiple View Stereo (MVS) matching and Structure from Motion techniques ideal for on-site documentation of excavations or emergencies. Moreover, the availability of inexpensive platforms for web-based visualization represents great benefit in the field of archaeology, where generally the low budged and the limitation of more complex instruments are a must. The case study presented in these pages, experienced in Petra, Jordan, moves towards this direction. In the close proximity of the El- Khasneh façade, is situated an excavation where two entrance, well preserved, give access to the Tomb of Pharaoh. The documentation described in these pages has the twofold objective of providing the research community with a priceless dataset, acquired for one of the most important heritage of the world that is partially still unknown and to share on line these computations. This work confirms how cultural heritage documentation and dissemination of architectural rests, that are important for tourism and their interactive visualization, can strongly benefit from the creation of 3D models and their sharing on the web. This particular archaeological setting is an interesting base for investigation, given the complexity of the structure and its precarious condition.

scholarly journals The Modeling of Redundantly Actuated Mechanical Systems

2019 ◽  
Vol 11 (6) ◽  
Author(s):  
Yaojun Wang ◽  
Bruno Belzile ◽  
Jorge Angeles ◽  
Qinchuan Li
Keyword(s):  
Degrees Of Freedom ◽  
Screw Theory ◽  
Mechanical Systems ◽  
Coefficient Matrix ◽  
Dynamics Modeling ◽  
Norm Minimization ◽  
Redundantly Actuated ◽  
The Right ◽  
And Control

Abstract Dynamics modeling is essential in the design and control of mechanical systems, the focus of the paper being redundantly actuated systems, which bring about special challenges. The authors resort to the natural orthogonal complement (NOC), based on an adaptation of screw theory, to derive the dynamics model. Benefiting from the elimination of the constraint wrenches, the NOC offers a simple, systematic alternative to the modeling of redundantly actuated mechanical systems. The optimum actuator-torque distribution is determined via Euclidean-norm minimization; then, by relying on the QR-decomposition, an efficient and robust method is produced to compute explicitly the right Moore–Penrose generalized inverse of the coefficient matrix. The methodology is illustrated via a case study involving a redundantly actuated parallel-kinematics machine with three degrees of freedom and four actuators.

Development of a Transnational Framework for E-Learning Technologies

2010 ◽  
pp. 187-202 ◽  
Author(s):  
Deryn Graham
Keyword(s):  
Environmental Factors ◽  
Cooperative Work ◽  
Original Study ◽  
Learning Technologies ◽  
Point Of View ◽  
Computer Supported Cooperative Work ◽  
Political Factors ◽  
E Learning ◽  
Political Economic

This case study looks at the creation of a Transnational Framework for e-Learning Technologies. It describes how the original study which aimed to “Develop a Framework for e-Learning” through a given exemplar in a United Kingdom institution, has gone through several iterations. From initially considering e-Tutoring/e-Moderating from a Human-Computer Interaction (HCI) point of view, to the adoption of Blended Learning as a solution to problems revealed by the Framework. Proceeding to evaluate e-Learning in terms of PESTE (Political, Economic, Social, Technical and Environmental) factors, restated here in the form of STEP (Social, Technological, Economical and Political) factors, which led to the realization of major external issues for e-Learning. Most recently, the study evolved to revisit e-Learning from an HCI and Computer-Supported Cooperative Work (CSCW) perspective, by applying a Cooperative Work Framework. The resulting final incarnation, a Transnational Framework for e-Learning, is thus presented.

scholarly journals Training and Instruction Skills Through the Test of Time

2021 ◽  
Vol 11 (3) ◽  
pp. 15
Author(s):  
Sharon Tzur ◽  
Nitza Davidovich ◽  
Adi Katz
Keyword(s):  
Air Force ◽  
Educational Software ◽  
Added Value ◽  
Technological Advancement ◽  
Dynamic Learning ◽  
Teaching Process ◽  
First Case ◽  
E Learning ◽  
Self Instruction

This study involves e-learning skills via educational software, compared to instruction via educational software with the mediation of an instructor. In the last two decades, the role of the teacher-lecturer has changed, from teaching to guidance and instruction. The technological tools have changed the nature of the learning space and the manner in which the teacher interacts with his students. Educational software is a collection of digital pages, packaged as a learning unit, and is a common tool for delivering self-instruction in academia on a range of issues. This is despite the fact that the effectiveness of this tool in academia has not yet been tested. In addition, the educational software is a technological tool but it is not being updated regularly, therefore the development of the topics in educational software is low. The key motif of technological advancement is to enable constant updates, and therefore, the effectiveness of this learning tool, which has the potential of countering the need for the dynamics of content transfer with its static nature, must be examined. The current study aims to examine the use of this tool in teaching and instruction, and to examine the ways to bridge over this gap of a "static" tool and a "dynamic" learning world. The study focuses on a case study in the Israeli Air Force and integrates instruction with technologies means. We have looked into the skills of e-learning through educational software, as well as the contribution of the instructor to the teaching process. The study's literature reveals that e-learning focuses on the cognitive aspect of learning and on the knowledge of the instruction field. Yet there are studies that engage in reinforcing the in-person communication, meaning, the significance of a “face-to-face” encounter between the student and his instructor. We examined the probability and the extent of the added value of the teacher/instructor in e-learning through educational software. An examination of e-learning through educational software is conducted by a test that consists of questions broken down into levels according to the STEM Model. The findings of the study demonstrate the contribution of educational software as a means of instruction, when it is combined with an in-person encounters between the students and their instructor. We found that combining the in-person meetings with the educational software practice has vastly improved the motivation of the technicians in training, their learning experience and the learner’s ability to understand the learning material.The results of our study shed a spotlight on the instruction, which are a major part of the teaching process in general, as well as the use of educational software as a relevant and applicable mean in the training process in particular. The case study, conducted in the Israeli Air Force, which guides the training processes that are held in the army, is the first case study of its kind, which tracks the use of educational software as a means of instructional work. Our assumption is that training work using educational software has a high influence in the context of teaching and training in different and diverse institutions and organizations, such as in academia.

scholarly journals The evolution of e-learning practices at the University of Tehran: A case study

2019 ◽  
pp. 20-37
Keyword(s):  
Qualitative Method ◽  
Point Of View ◽  
Learning Practices ◽  
Learning Programs ◽  
Comprehensive Picture ◽  
E Learning ◽  
Enterprise Level ◽  
Educational Paradigm ◽  
The University

e-Learning is a new educational paradigm in the age of information technology. These days, most universities worldwide consider e-learning as a strategic asset to make education accessible to everyone. The current paper evaluates the e-learning programs at the University of Tehran from an organizational point of view, and seeks to realize how it evolved over time and adapted to the changing environment. Using a qualitative method, this study draws a comprehensive picture of e-learning events and challenges in different phases, as well as their impacts in multiple aspects. The evolution also shows a gradual decentralization in the administration processes and the transformed e-learning programs from a standalone effort into teamwork at the enterprise level.

scholarly journals A personal account of the expert of the Ministry of Internal Affairs of the Russian Federation

2019 ◽  
Vol 2019 (3) ◽  
pp. 130-135
Author(s):  
Дмитрий Жидков ◽  
Dmitriy Jidkov
Keyword(s):  
Russian Federation ◽  
Law Enforcement Officers ◽  
Relevant Information ◽  
3D Models ◽  
Professional Activity ◽  
On Line ◽  
The Russian Federation ◽  
Internal Affairs ◽  
Exact Size ◽  
The Right

The article proposes the creation of personal electronic offices within the ISOD of the Ministry of internal Affairs of Russia for law enforcement officers who are able to solve gaps in the methodological support of official activities. The basic problem directions of methodical maintenance of professional activity of employees of expert divisions are considered. Part of the article deals with the organization of methodological support of new relevant types of forensic examinations, such as: construction and technical, video, automotive, computer, radio, describes the basic functionality of a single system of information and analytical support of the Ministry of internal Affairs of the Russian Federation (ISOD MIA). The author noted that one of the main criteria, the presence of which must necessarily be contained in the virtual offices of ATS experts is relevant information. So it is offered to reflect in private offices the following information: data on the tolerances available for the employee on independent production of judicial examinations; data on improvement of qualifications, with possibility of their increase in the mode on-line; actual information on the latest and already existing techniques on examinations on the right of production of which the expert has the confirmed admissions; information on instrument base on each type of examinations on which there is an active admission (with indication of the nearest availability); electronic library of literature, including secret, corresponding to the level of admission to it from the expert, with the possibility of acquaintance; electronic collections of forensic objects (if possible 3D models), with examples of their descriptions, the main features and in some cases the functional purpose, the exact size.

scholarly journals Recognition of architectural patterns in the houses of the Niakie neighborhood in Amol

2020 ◽  
Vol 11 (29) ◽  
pp. 173-192
Author(s):  
Zohreh Sanaei ◽  
Jamshid Mirhadi ◽  
Ali Asgharzadeh
Keyword(s):  
Field Research ◽  
Physical Review ◽  
Point Of View ◽  
Architectural Elements ◽  
Architectural Patterns ◽  
Key Issues ◽  
The Right ◽  
The Relationship ◽  
Physical Components

Traditional housing fabrics are an obviously valuable heritage to be reviewed and analyzed, as they present the right pattern for native architecture because it is considered the main core in the creation of cities, as well as the architectural elements and buildings located in them. The objective of this study is to review and recognize the physical and social behavior patterns of these buildings to improve these valuable fabrics and save them from their presence of unusual buildings. First, this study would review the key problems on the design of patterns in the architecture of the house, obtaining an analytical-descriptive point of view; This research first reviews the key issues of the patterns in the architecture of the house, and then identifies the physical components that are effective in traditional buildings, contrasting with the theoretical foundations obtained. The next step has been the identification and physical review using the field research method to physically identify and review the case study buildings in the historical fabric. After the analysis, the most effective physical components would be prioritized by hierarchical method. Finally, considering the results obtained, not only the principles of native architecture are identified, but also some approaches are introduced to improve the relationship between physical behavior environments in the Niakie neighborhood in Amol.

scholarly journals E-learning megvalósítások tapasztalatai és eredményei az Eszterházy Károly Egyetemen

2021 ◽  
Author(s):  
Péter Antal
Keyword(s):  
Distance Learning ◽  
Research Group ◽  
Point Of View ◽  
Learning System ◽  
Knowledge Transmission ◽  
Learning Framework ◽  
University Experiences ◽  
E Learning ◽  
On Line ◽  
Framework System

A hagyományostól eltérő tudásközvetítés szerepe világszerte megnőtt. Ez egyrészt a meglévő kompetenciák, minőségi és tartalmi változásának köszönhető, másrészt a hagyományos oktatás tartalmi és strukturális rugalmatlanságából fakad. Annak ellenére, hogy a technika által támogatott tudásátadás néhány előnye kézenfekvőnek tűnhet, a távoktatás alkalmazásának mindenhol vannak korlátai. Az Eszterházy Károly Egyetemen 2010 óta használjuk a MOODLE távoktatási keretrendszert többkevesebb sikerrel. Az EFOP-3.4.3-16-2016 pályázat keretein belül létrejött egy kutatócsoport, amelynek feladata az interaktív, online kurzusokhoz kapcsolódóan a tanulási eredmények monitorozását lehetővé tévő eszközök, alkalmazások kísérleti beépítése illetve újak kifejlesztése. Ennek egyik része az a vizsgálat, amely a felhasználók elégedettségét (tanár, diák) és kompetenciáját méri. A koronavírus járvány okozta hirtelen változások nyilvánvalóvá tették, hogy mind a diákok mind a tanárok, egyetemi oktatók jó része nem készült fel a digitális oktatás kihívásaira, sem módszertani sem technikai szempontból. Előadásomban ennek a felmérésnek az eredményeiről szeretnék beszámolni. ----- The implementation of e-Learning solutions at the Eszterházy Károly University: experiences and results ----- The increasing global role of non-traditional knowledge transmission methods is partly due to the quality and content-based modifications of existing competences along with the inflexible content and structure of the traditional school. While technologically supported knowledge transmission has obvious benefits, distance learning generally has its own limitations. The MOODLE distance learning framework system was implemented at the Eszterházy Károly University in 2010 and has operated with varying success since then. In order to develop and integrate tools and applications facilitating the monitoring of learning outcomes related to interactive, on-line courses a research group was formed with the support of the EFOP-3.4.3-16-2016 project. The tasks of the research group included ascertaining the satisfaction and competence levels of the users (instructors and students) of the e-Learning system. The sudden changes brought on by the COVID-19 pandemic revealed that the majority of students and instructors were not prepared to respond to the challenges of digital instruction from a methodological or technological point of view. In my presentation, I will introduce the results of the abovementioned survey.

scholarly journals Addressing A Missing Link In Higher Education On-line Content Development: Toward A Tripartite Collaborative Model

2005 ◽  
Vol 2 (9) ◽  
Author(s):  
Tov Assogbavi ◽  
Maurice Grzeda
Keyword(s):  
Higher Education ◽  
Successful Outcome ◽  
Learning Technology ◽  
Traditional Schools ◽  
Education Experience ◽  
Content Development ◽  
Start Up ◽  
E Learning ◽  
On Line ◽  
The Right

Although more than a dozen methods for developing and offering courses through distance education have been utilized over the years, the offering of on-line courses through the “World Wide Web” is still in its infancy. The number of failures in managing such on-line offerings calls for substantial research to explore why some programs are successful while others fail.  A few years ago, dozens of business schools in the US were trying to position themselves in what was promised to be a lucrative market for on-line education and training.  While some institutions have successfully established internet-based programs, many others have scrapped their on-line projects.  Many reasons account for these failures.  Among these are misinterpretations of the market, problems faced by traditional schools, start-up costs, choice of development/delivery model and faculty skepticism.  While all these reasons have a great impact on the results of the first decade of on-line education experience, this paper focuses on what seems to be the major factor: finding the right on-line model.  The paper suggests that an on-line higher education model based on a partnership between the institution, the content experts and the e-learning technology providers is the most functional.  This model helps each partner clearly determine an appropriate role, increasing the likelihood of a successful outcome.

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