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This chapter shares details about the design and development of the Virtual Dental Implant Trainer (VDIT) learning game created for the Medical College of Georgia. The design and development team introduces the program by sharing the instructional goals of the learning game, basic design concepts, and development constraints. The chapter then highlights successes and discusses issues the team encountered during the design and development of the VDIT learning game. The emphasis is on sharing our experiences to help future organizations interested in creating or procuring learning game products learn from our example. Despite the issues, the team was able to minimize their impact and happily report that the game has been successfully created, tested, and delivered to the Medical College of Georgia for use in the affiliated dental school programs. The chapter closes with actionable recommendations for learning game design teams to help ensure delivery of successful game products.
The purpose of the Virtual Dental Implant Trainer (VDIT) project was to create a game-based simulation training tool to allow students to practice dental implant decision making during their free time. Nobel Biocare, a globally recognized maker of dental implant tools and hardware, through its partnership with the Medical College of Georgia (MCG), commissioned our team to design VDIT as a downloadable or CD-driven software package that could be distributed to medical students through its network of accredited schools and businesses.
When developing a learning game, how important is it to include the elements of story? How do you develop a story for learning games? Is it hard to do? Is it worth it? In this chapter, you will learn about the importance of using story in learning environments, more specifically serious games. We introduce approaches that you can use to embed story into games. We also introduce key issues and challenges designers face when trying to incorporate story into learning games and provide recommendations for overcoming them.
We all tell stories. Man has used them for thousands of years as a way to share experiences, pass on cultural traditions, celebrate the past, imagine the future, and communicate lessons learned. It seems that we have always turned to stories as a way to transmit thoughts, feelings, and knowledge. So what makes a story so special? When we have an opportunity to exchange or deliver information, why do stories seem to convey the message better than other constructs such as bullet points, outlines, or reports? The answer is that we are built to understand stories.
We examine the effect of prescribed wall-driven oscillations of a flexible tube of arbitrary cross-section, through which a flow is driven by prescribing either a steady flux at the downstream end or a steady pressure difference between the ends. A large-Womersley-number large-Strouhal-number regime is considered, in which the oscillations of the wall are small in amplitude, but sufficiently rapid to ensure viscous effects are confined to a thin boundary layer. We derive asymptotic expressions for the flow fields and evaluate the energy budget. A general result for the conditions under which there is zero net energy transfer from the flow to the wall is provided. This is presented as a critical inverse Strouhal number (a dimensionless measure of the background flow rate) which is expressed only in terms of the tube geometry, the fluid properties and the profile of the prescribed wall oscillations. Our results identify an essential component of a fundamental mechanism for self-excited oscillations in three-dimensional collapsible tube flows, and enable us to assess how geometric and flow properties affect the stability of the system.
In Part 1 of this work, we derived general asymptotic results for the three-dimensional flow field and energy fluxes for flow within a tube whose walls perform prescribed small-amplitude periodic oscillations of high frequency and large axial wavelength. In the current paper, we illustrate how these results can be applied to the case of flow through a finite-length axially non-uniform tube of elliptical cross-section – a model of flow in a Starling resistor. The results of numerical simulations for three model problems (an axially uniform tube under pressure–flux and pressure–pressure boundary conditions and an axially non-uniform tube with prescribed flux) with prescribed wall motion are compared with the theoretical predictions made in Part 1, each showing excellent agreement. When upstream and downstream pressures are prescribed, we show how the mean flux adjusts slowly under the action of Reynolds stresses using a multiple-scale analysis. We test the asymptotic expressions obtained for the mean energy transfer E from the flow to the wall over a period of the motion. In particular, the critical point at which E = 0 is predicted accurately: this point corresponds to energetically neutral oscillations, the condition which is relevant to the onset of global instability in the Starling resistor.
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