scholarly journals Web-Based Interactive Analysis and Animation of Mechanisms

2005 ◽  
Vol 6 (1) ◽  
pp. 84-90 ◽  
Author(s):  
Harry H. Cheng ◽  
Dung T. Trang

A Web-based mechanism analysis and animation system is presented in this article. The system is developed in Ch, an embeddable C/C++ interpreter, and Ch Mechanism Toolkit. It allows users to solve complicated planar mechanism problems conveniently on-line. Users can input the required data to define a mechanism in a Web browser and then click a button for kinematic and dynamic analysis, graphical plotting, and animation for fourbar, crank-slider, geared fivebar, sixbar linkages and cam-follower systems. Examples are provided to illustrate its ease of use as well as its suitability for distance learning. The Web-based system for mechanism analysis and animation is available on the Web at http://www.softintegration/webservices/mechanism/

2013 ◽  
Vol 13 (4) ◽  
pp. 63-73
Author(s):  
Elisaveta Trichkova ◽  
Krasimira Stoilova

Abstract The aim of this paper is to propose an approach for quality assessment and efficiency of the web-based system for distance learning. This system has useful options for on-line creation and use of Web-based courses by other medical disciplines in Medical University - Sofia. The results of the assessment will be used to improve the functionality of the processes in the system to meet the user requirements.


Author(s):  
Peter P. Mykytyn Jr.

Not too many years ago, hardly anyone had heard the terms “Web browser,” “Web,” or “electronic commerce.” Today, the World Wide Web, often referred to as simply the Web and as the Internet, offers almost limitless opportunities for end users to do research, obtain comparative information on different products or services, and conduct business online. Many users today, for example, have experienced the opportunity to visit competing web travel sites, e.g., Travelocity.com and Expedia.com, to price airline fares, obtain car rental information, and make a hotel reservation. More often than not, it seems, end users are also intrigued by the fact that prices for the same flight or car are not necessarily the same at the sites searched; in a way, users have become much more savvy in their selection of products and services. In general, end users can become much more efficient and effective as they conduct business online, and both consumers and businesses can participate in unrestricted buying and selling. Consequently, the Web is changing the way businesses do business, and, of course, it is changing the way many end users conduct their business as well. Electronic commerce (e-commerce) mainly consists of business-to-business (B2B) and business-to-consumer (B2C) types of transactions. According to an e-commerce survey (Survey E-Commerce, 2000) B2B transactions accounted for 80% of all e-commerce and added up to $150 billion in 1999. Further, B2C transactions in the US amounted to about $20 billion that same year. Although there continues to be a “shaking out” period involving dot.com organizations, questions and decisions about whether to develop Web-based storefronts along with the traditional brick and mortar outlets, e-commerce will most likely continue to expand. But while e-commerce grows, maintaining control over on-line transactions and business risks creates challenges that may not be apparent to unsophisticated end users. One of these challenges pertains to the various and assorted legal issues that confront end users as well as the e-commerce businesses where end users shop. Whether buying or selling on the Web or even just establishing one’s home page, legal issues, in addition to providing protection, can also present pitfalls to the unwary. This paper discusses briefly two of the legal issues that can confront today’s end users as they do business over the Web. They are matters dealing with contract law and jurisdictional questions.


Sensi Journal ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 236-246
Author(s):  
Ilamsyah Ilamsyah ◽  
Yulianto Yulianto ◽  
Tri Vita Febriani

The right and appropriate system of receiving and transferring goods is needed by the company. In the process of receiving and transferring goods from the central warehouse to the branch warehouse at PDAM Tirta Kerta Raharja, Tangerang Regency, which is currently done manually is still ineffective and inaccurate because the Head of Subdivision uses receipt documents, namely PPBP and mutation of goods, namely MPPW in the form of paper as a submission media. The Head of Subdivision enters the data of receipt and mutation of goods manually and requires a relatively long time because at the time of demand for the transfer of goods the Head of Subdivision must check the inventory of goods in the central warehouse first. Therefore, it is necessary to hold a design of information systems for the receipt and transfer of goods from the central warehouse to a web-based branch warehouse that is already database so that it is more effective, efficient and accurate. With the web-based system of receiving and transferring goods that are already datatabed, it can facilitate the Head of Subdivision in inputing data on the receipt and transfer of goods and control of stock inventory so that the Sub Head of Subdivision can do it periodically to make it more effective, efficient and accurate. The method of data collection is done by observing, interviewing and studying literature from various previous studies, while the system analysis method uses the Waterfall method which aims to solve a problem and uses design methods with visual modeling that is object oriented with UML while programming using PHP and MySQL as a database.


Author(s):  
Hyung-Jung Kim ◽  
Won-Shik Chu ◽  
Hyuk-Jin Kang ◽  
Sung-Hoon Ahn ◽  
Dong-Soo Kim ◽  
...  

In this paper, web-based design and manufacturing systems are compared with a commercial CAD/CAM system from the point of usability. The web-based systems included in this study were MIcro Machining System (MIMS) and SmartFab. In the MIMS architecture, a 3D model in STL format was read via a web browser, sent to the web server for toolpath planning, and NC codes were generated to be fed back to the designer through the web connection. In the SmartFab system, SolidWorks was used as the design interface with provided modified menus for micro machining. These additional menus were created by SolidWorks API that also provided web-based links to the toolpath planner. In the commercial CAD/CAM case, without using any web connection, SolidWorks or CATIA was used for design, and PowerMill was used as a CAM tool. For each design and manufacturing system, accessibility, user-friendliness, toolpath-reliability, and processing time were compared. Total 91 students tested these systems in undergraduate CAD class, and the feedback showed better performance of the web-based system in accessibility, user-friendliness, and processing time. However, reliability of the web-based system showed necessity of further improvement.


2008 ◽  
Vol 13 (4) ◽  
pp. 40-52 ◽  
Author(s):  
Alex McClimens ◽  
Frances Gordon

Very little is known about the online habits of people labelled with intellectual disability. What little information there is focuses more on demographic descriptors rather than any analyses of issues specific to that group. Hence the vast majority of the literature is firmly focused on more generic issues as they affect the general population. Some very few disability dedicated studies, however, have examined homepages maintained by individuals who live with Down syndrome. Here at least is evidence of a field of inquiry that recognises there may be particular aspects of web based communications that deserve special interest. The dynamics of web based communications are fast moving and the relatively static homepage has subsequently given way to Web 2.0 technologies. Here the recent and exponential increase in the popularity of blogging as a means of mass communication has attracted much comment in both popular and specialist quarters. Its ease of use and near universal availability has prompted massive sociological inquiry. But again the profile of people living with intellectual disability is absent from the debate. Our study reports on a project in which adults with intellectual disability were assisted to access the web in general, and the ‘blogosphere’ in particular. Our focus is on the means and methods by which the participants were able to manage their off and online identities. We look at the language employed, the layouts used and the way the online messages and postings reflected or distorted the actual lived experiences of these proto-bloggers. Notions of authorship and audience also contribute to the debate as these issues raise questions about sense of self, disability as a cultural construct and our ability to negotiate the increasingly important virtual world of the web.


1969 ◽  
Vol 40 (3) ◽  
pp. 259-270
Author(s):  
Carlos Ruiz ◽  
Claudia Gaviria ◽  
Miguel Gaitán ◽  
Rubén Manrique ◽  
Ángela Zuluaga ◽  
...  

Introduction: Implementation of teledermatology in primary care offers the possibility of treating patients using specific dermatologic knowledge in far away places with infrequent availability to these services. It is a priority to implement teledermatology services which demonstrate diagnostic reliability and satisfaction among users. Objectives and methods: To measure the diagnostic reliability of an asynchronous teledermatology web based application by means of intraobserver and interobserver concordance during teleconsultation and traditional presential («face to face») consultation. Furthermore, to evaluate user satisfaction regarding the teleconsultation and the web application.Results: A sample of 82 patients with 172 dermatologic diagnoses was obtained, in which an intraobserver concordance between 80.8% and 86.6%, and an interobserver concordance between 77.3% and 79.6% were found. Satisfaction was evaluated to be on an average of 92.5%.Conclusions: The teleconsultation reliability in teledermatology is evidenced to be high, and is susceptible of improvement through the implementation of health information standards and digital dermatologic photography protocols.


This chapter presents the architecture of Web-based intelligent English instruction system CSIEC (Computer Simulation in Educational Communication) and illustrates its important components with examples: dialogue simulation functions including multiple roles talk show and user participating roles play, vocabulary exercises including crossword, single choice questions and cloze questions, listening, reading comprehension, grammar exercises, reading aloud, individual learner portfolios, collaborative learning, the teacher's management function, feedback, and so on. The system's function of instant feedback to every student and statistical analysis upon all students' responses to question answers characterizes this system as a learner response system. The Web-based system can be browsed not only by the user through traditional personal computers but also through fashionable tablet computers. Besides the Web-based system, a standalone vocabulary learning and assessment system for Windows OS is developed. Its functions are also introduced.


Author(s):  
Pedro Z. Caldeira

The main goal of this study is to compare the impact of Web-based information on surface, deep and total learning, on satisfaction and on navigation information of subjects with different study orientations. Three subject groups were selected and each group included only subjects with a specific study orientation: A meaning study orientation, a reproduction study orientation and a disorganized study orientation. After studying a Web-based presentation on ‘Global Warming’, subject's performance was evaluated regarding surface, deep and total learning, satisfaction and navigation style. Results show that, first, subjects with a disorganized study orientation score lower on deep learning and on total learning than subjects with a reproduction study orientation and, second, subjects with a disorganized study orientation felt easier to navigate in the Web-system than subjects with a meaning study orientation (although they visit more pages and spend less time in each one than subjects with a meaning study orientation).


Author(s):  
Harry H. Cheng ◽  
Dung T. Trang

We have developed a Ch Mechanism Toolkit for analysis and design of mechanisms. It was developed using Ch, an embeddable C/C++ interpreter with extensions. The Ch Mechanism Toolkit allows users to write simple programs for solving complicated planar mechanism problems. As an extension to the toolkit, a Web-based system was created for performing mechanism design and analysis through the internet. This paper will discuss the design and implementation of the Ch Mechanism Toolkit as well as its corresponding web-based system. The web-based mechanism system is especially suitable for distance learning. The web-based system for mechanism design and analysis is available on the Web at http://www.softintegration/webservices/mechanism/.


Author(s):  
E. S. Malinverni ◽  
R. Pierdicca

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.


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