Physical and digital books, media, journals, archives, and databases.
Results include
  1. 2FLOWS: A Smart Dual-Flow Sink

    Park, So Yeon
    2018

    As the water infrastructure in the US is aging, with many water distribution pipes installed 50 or more years ago, the process of replacing such infrastructure is projected to cost about $1 trillion. Our project sponsor Xylem asked us to design a solution around such a wicked problem. The ME310 Xylem team conducted user needfinding, defined the problem, pivoted towards darkhorse prototypes, created funktional and functional prototypes, and finally developed the solution called 2FLOWS. 2FLOWS is a smart dual-flow sink that automatically detects and diverts greywater from blackwater, giving greywater a second life for purposes such as irrigation and other non-potable uses within the building (e.g., toilet flushing). As much of the water from commercial buildings are in fact reusable, the diversion and reuse of greywater effectively reduces the load on pipes to water treatment and also prevents unnecessary full treatment of the water. Through needfinding we found that there is a huge mismatch between water-saving intentions and actions, but our instances of user testing have shown that 2FLOWS brings about a unique user experience that allows already water-conscious citizens to bridge this intention-to-action gap. We also found that 2FLOWS brings the conversation and awareness of water-consciousness, which is the first step towards a more sustainable infrastructure. We envision 2FLOWS to be advantageous and vital to the decentralized paradigm that we introduce as the solution to the issue of aging water infrastructure.

  2. Design affordances for online interactions

    Park, So Yeon
    [Stanford, California] : [Stanford University], 2022

    Online interactions are part of our social fabric. We are becoming increasingly reliant on online platforms, such as social media and collaborative tools, to enable and facilitate our social interactions and collaborations. The ways in which these platforms are designed greatly influence the way we interact with one another. Yet many commercially available tools for computer-mediated user-user interactions rely on existing generic approaches without adequate consideration of contextual specificity or user needs. This often leads to ill-designed collaborative tools, frequently impairing communication and collaboration, rather than empowering users to interact seamlessly online. To build a better understanding of the impact of current platform designs, I have investigated user perceptions around online actions. Online actions are actions that we take on social platforms that have communicative value and are one of the most active ways in which we interact with others online. I have studied how ambiguities inherent in the current design of these actions make users think, feel, and interact. I have found that ambiguous online actions lead to inaccurate conjectures, attribution biases, and interpretation discrepancies by users both in social media and on collaborative platforms. These, in turn, affect users' perception of others and comfort in taking online actions, especially in contexts where perceptions of ownership abound. Consequently, my investigations elucidate where and how misunderstandings may occur, and underscore the importance of providing rationales for online actions. From synthesizing these findings, I have formulated principles of design affordances that can enable platform developers and designers to help build better collaborative experiences for users

  3. Selective dissolution of halide perovskites as a step towards recycling solar cells [electronic resource]

    Washington, D.C. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Oak Ridge, Tenn. : distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2016

    Most research on perovskite solar cells has focused on improving power-conversion efficiency and stability. However, if one could refurbish perovskite solar cells, their stability might not be a critical issue. From the perspective of cost effectiveness, if failed, perovskite solar cells could be collected and recycled; reuse of their gold electrodes and transparent conducting glasses could reduce the price per watt of perovskite photovoltaic modules. Here, we present a simple and effective method for removing the perovskite layer and reusing the mesoporous TiO2-coated transparent conducting glass substrate via selective dissolution. We find that the perovskite layer can be easily decomposed in polar aprotic solvents because of the reaction between polar aprotic solvents and Pb2+ cations. After 10 cycles of recycling, a mesoporous TiO2-coated transparent conducting glass substrate-based perovskite solar cell still shows a constant power-conversion efficiency, thereby demonstrating the possibility of recycling perovskite solar cells.

    Online OSTI

Guides

Course- and topic-based guides to collections, tools, and services.
No guide results found... Try a different search

Library website

Library info; guides & content by subject specialists
No website results found... Try a different search

Exhibits

Digital showcases for research and teaching.
No exhibits results found... Try a different search

EarthWorks

Geospatial content, including GIS datasets, digitized maps, and census data.
No earthworks results found... Try a different search

More search tools

Tools to help you discover resources at Stanford and beyond.