Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 438 for “"Scratch"”.
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Scratch Microworlds : introducing novices to scratch using an interest-based, open-ended, scaffolded experience
… I present the iterative design and testing of Scratch Microworlds, simplified versions of the Scratch coding environment that contain a small set of blocks for making projects based on a theme, such as dance, soccer, or music. I use a design-based research approach to iteratively design, …
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Discovering the hidden users of Scratch
… a telemetry data collection system built for the Scratch programming language to collect usage data regarding how Scratch is being used in areas with poor internet connections. We develop the system to allow users to opt-in to sharing their usage and project data with the Scratch research team at …
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Jots : cultivating reflective learning in scratch
… and feelings while creating projects in the Scratch programming environment. Later children can look back at their jots to reflect on their own design and learning processes. This thesis introduces an approach to reflective learning in four facets: cognitive, emotional, social and temporal. …
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Mineral-filled polypropylene: Improvement of scratch resistance
… to provide a material with enhanced scratch resistance. Several physical properties including Rockwell and Shore D hardness are investigated, and it is determined that Filler W improves scratch resistance. It is also determined that Filler T-filled-PP has poor scratch resistance even …
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Exploring real-time video interactivity with Scratch
… video interactivity space in the context of Scratch (scratch.mit.edu), a graphical block-based programming language accessible to all ages. To decide what functionality to provide to Scratch users, various computer vision algorithms are tested, including object detection, object recognition, …
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Determination of Wear in Polymers Using Multiple Scratch Test.
… selected and an attempt is made to use multiple scratch test to define wear and to create a universal test procedure that can be employed to most of the polymers. In each of the materials studied, the scratch penetration depth s reaches a constant value after certain number of scratches depending …
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Hypotheses for Scratch Behavior of Polymer Systems that Recover
Scratch recovery is a desirable property of many polymer systems. The reason why some materials have demonstrated excellent scratch recovery while others do not has been a mystery. Explaining the scratch resistance based upon the hardness of a material or its crosslink density is incorrect. In this …
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Analysis of the scratch test for cohesive-frictional materials
… analytical solutions for the relations between scratch hardness and strength properties of cohesive-frictional materials of the Mohr-Coulomb and Drucker-Prager type. Based on the lower-bound yield design approach, closed form solutions are derived for frictionless scratch devices, and validated …
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Classification of computer programs in the Scratch online community
Scratch is a graphical programming platform that empowers children to create computer programs and realize their ideas. Although the Scratch online community is filled with a variety of diverse projects, many of these projects also share similarities. For example, they tend to fall into certain …
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Improvement of scratch and abrasion resistance properties of automobile paint
Submitted in fulfillment of the requirements for the degree of Master of Engineering, Chemical Engineering, Durban University of Technology, Durban, South Africa, 2022.
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Teaching Introductory Programming Concepts: A Comparison of Scratch and Arduino
… thesis a comparison of two computing platforms. Scratch is a well-proven platform that teaches core programming concepts through a graphical programming interface. Arduino boards are open-source microcontrollers with an accompanying development environment and C-like language. We develop a …
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Design and implementation of search for the Scratch Online Community
The Scratch Online Community has been experiencing rapid growth and has around 9.5 million users and 12.5 million shared projects today. This exponential growth introduces a need for a new Search infrastructure that will enable users to find and discover more relevant projects, while allowing the …
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ScratchStats : a site for visualizing and understanding scratch usage data
This thesis introduces ScratchStats, an extension to the Scratch website where users can view and understand Scratch usage data through a series of interactive visualizations. Scratch is a visual programming language that makes it easy to create interactive stories, games, and artwork. Accompanying …
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Evaluation of Packaging Film Mechanical Integrity Using a Standardized Scratch Test
… well with field damages that are observed to be scratch-like. The standardized linearly increasing load scratch test is investigated as a new means of evaluating the mechanical integrity of packaging films. Mechanical clamp and vacuum fixtures were considered for securing the films to a set of …
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Scratching with all your fingers : exploring multi-touch programming in Scratch
… the context of an upcoming tablet version of Scratch, which aims to allow users of all ages and educational backgrounds (but school-aged children in particular) to easily make and share their own stories, games, and animations on and for the tablet.
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Understanding Common Scratch Programming Idioms and Their Impact on Project Remixing
As Scratch has become one of the most popular educational programming languages, understanding its common programming idioms can benefit both computing educators and learners. This understanding can fine-tune the curricular development to help learners master the fundamentals of writing idiomatic …
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