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Articles 1 - 9 of 9
Full-Text Articles in Entire DC Network
Coordinated River Infrastructure Decisions Improve Net Social-Ecological Benefits, Samuel G. Roy, Adam Daigneault, Joseph Zydlewski, Allison Truhlar, Sean Smith, Shaleen Jain, David Hart
Coordinated River Infrastructure Decisions Improve Net Social-Ecological Benefits, Samuel G. Roy, Adam Daigneault, Joseph Zydlewski, Allison Truhlar, Sean Smith, Shaleen Jain, David Hart
New Hampshire EPSCoR
We explore the social, ecological, economic, and technical dimensions of sustainable river infrastructure development and the potential benefits of coordinating decisions such as dam removal and stream crossing improvement. Dam removal is common practice for restoring river habitat connectivity and ecosystem health. However, stream crossings such as culverts are often 15 times more abundant than dams and may pose similar ecological impacts. Using multi-objective optimization for a model system of 6100 dams and culverts in Maine, USA, we demonstrate substantial benefit-cost improvements provided by coordinating habitat connectivity decisions. Benefit-cost efficiency improves by two orders of magnitude when coordinating more decisions …
Self-Assembly Behavior Of Experimentally Realizable Lobed Patchy Particles, Sanjib Paul, Harish Vashisth
Self-Assembly Behavior Of Experimentally Realizable Lobed Patchy Particles, Sanjib Paul, Harish Vashisth
New Hampshire EPSCoR
We report simulation studies on the self-assembly behavior of five different types of lobed patchy particles of different shapes (snowman, dumbbell, trigonal planar, square planar, and tetrahedral). Inspired by an experimental method of synthesizing patchy particles (Wang et al., Nature, 2012, 491, 51–55), we control the lobe size indirectly by gradually varying the seed diameter and study its effect on self-assembled structures at different temperatures. Snowman shaped particles self-assemble only at a lower temperature and form two-dimensional sheets, elongated micelles, and spherical micelles, depending on the seed diameter. Each of the four other lobed particles self-assemble into four distinct morphologies …
Role Of Entropy In Colloidal Self-Assembly, Brunno C. Rocha, Sanjib Paul, Harish Vashisth
Role Of Entropy In Colloidal Self-Assembly, Brunno C. Rocha, Sanjib Paul, Harish Vashisth
New Hampshire EPSCoR
Entropy plays a key role in the self-assembly of colloidal particles. Specifically, in the case of hard particles, which do not interact or overlap with each other during the process of self-assembly, the free energy is minimized due to an increase in the entropy of the system. Understanding the contribution of entropy and engineering it is increasingly becoming central to modern colloidal self-assembly research, because the entropy serves as a guide to design a wide variety of self-assembled structures for many technological and biomedical applications. In this work, we highlight the importance of entropy in different theoretical and experimental self-assembly …
Exploring The Utility Of Small Unmanned Aerial System (Suas) Products In Remote Visual Stream Ecological Assessment, Alexandra D. Evans, Kevin H. Gardner, Scott Greenwood, Bruce Pruitt
Exploring The Utility Of Small Unmanned Aerial System (Suas) Products In Remote Visual Stream Ecological Assessment, Alexandra D. Evans, Kevin H. Gardner, Scott Greenwood, Bruce Pruitt
New Hampshire EPSCoR
Many restoration projects’ success is not evaluated (Roni & Beechie 2013; Nilsson et al. 2016), despite available conventional ecological assessment methods. There is a need for more flexible, affordable, and efficient methods for evaluation, particularly those that take advantage of new remote sensing and geospatial technologies (Hubbart et al. 2017). This study explores the use of illustrative small unmanned aerial system (sUAS) products, made using a simple structure-from-motion photogrammetry workflow, coupled with a visual assessment protocol as a remote evaluation and ecological condition archive approach. Three streams were assessed in the field (“surface assessments”) using the Stream Visual Assessment Protocol …
I’Ll Be Dammed! Public Preferences Regarding Dam Removal In New Hampshire (Pre-Print), Natallia Leuchanka Diessner, Catherine Ashcraft, Kevin H. Gardner, Lawrence C. Hamilton
I’Ll Be Dammed! Public Preferences Regarding Dam Removal In New Hampshire (Pre-Print), Natallia Leuchanka Diessner, Catherine Ashcraft, Kevin H. Gardner, Lawrence C. Hamilton
New Hampshire EPSCoR
Decisions about dams, like other environmental conflicts, involve complex tradeoffs between different water uses with varying human and ecological impacts, have significant impacts on public resources and involve many stakeholders with diverse and often conflicting interests. Given the many upcoming dam decisions in New England and across the United States of America, an improved understanding of public preferences about dam decisions is needed to steward resources in the public interest. This research asks (1) What does the public want to see happen with dams?, and (2) Do demographic factors influence public preferences for dam decisions? This paper analyzes data from …
Pearl River Negotiation Simulation: Negotiating The Future Of Dams, Natallia Leuchanka Diessner, Catherine Ashcraft, Weiwei Mo, Cuihong Song
Pearl River Negotiation Simulation: Negotiating The Future Of Dams, Natallia Leuchanka Diessner, Catherine Ashcraft, Weiwei Mo, Cuihong Song
New Hampshire EPSCoR
The role-play included in this packet is a facilitated, multi-issue negotiation simulation for eight or nine participants about the management of five dams in the hypothetical Pearl River basin. This role-play is meant to be used in conjunction with a system dynamics model, which simulates potential environmental and economic outcomes under different dam management alternatives in the Pearl River basin. The user interface for the system dynamics model can be accessed at: https://ddc.unh.edu/dam-system-dynamics/. The science-based role-play negotiation simulation provides opportunity for discussion of complex topics surrounding human-environment interactions, use of scientific data and modeling in environmental decision-making under uncertainty, …
Acting Out Our Dam Future: Science-Based Role-Play Simulations As Mechanisms For Learning And Natural Resource Planning, Natallia Leuchanka Diessner, Catherine Ashcraft, Weiwei Mo, Cuihong Song, Lawrence C. Hamilton, Shannon Rogers, Kevin H. Gardner
Acting Out Our Dam Future: Science-Based Role-Play Simulations As Mechanisms For Learning And Natural Resource Planning, Natallia Leuchanka Diessner, Catherine Ashcraft, Weiwei Mo, Cuihong Song, Lawrence C. Hamilton, Shannon Rogers, Kevin H. Gardner
New Hampshire EPSCoR
Science often does not make its way into decisions, leading to a problematic gap between scientific and societal progress. To tackle this issue, our research tests a novel science-based negotiation simulation that integrates a role-play simulation (RPS) with a system dynamics model (SDM). In RPSs, stakeholders engage in a mock decision-making process (reflecting real-life institutional arrangements and scientific knowledge) for a set period. System dynamics models (SDMs) are visual tools used to simulate the interactions and feedback within a complex system. We test the integration of the two approaches with stakeholders in New England via a series of two consecutive …
Language Effects On Bargaining, Michael J. Weir, Catherine M. Ashcraft, Natallia Leuchanka Diessner, Bridie Mcgreavy, Emily Vogler, Todd Guilfoos
Language Effects On Bargaining, Michael J. Weir, Catherine M. Ashcraft, Natallia Leuchanka Diessner, Bridie Mcgreavy, Emily Vogler, Todd Guilfoos
New Hampshire EPSCoR
Language is critical to coordination in groups. Though, how language affects coordination in groups is not well understood. We prime distributive and integrative language in a bargaining experiment to better understand the links between group outcomes and communication. We accomplish this by priming interests or positions language in randomized groups. We find that priming positions as opposed to interests language leads to agreements where controllers, subjects with unilateral authority over the group outcome, receive a larger share of the benefits but where the total benefits to the group are unaffected. In contrast to common justifications for the use of integrative …
Runoff Coefficients Of High-Flow Events In Undisturbed New England Basins, Iman Hosseini-Shakib, Kevin H. Gardner, Anne Lightbody
Runoff Coefficients Of High-Flow Events In Undisturbed New England Basins, Iman Hosseini-Shakib, Kevin H. Gardner, Anne Lightbody
New Hampshire EPSCoR
The New England region in the Northeast U.S. receives high annual precipitation as rain and snow, which results in floods that endanger people and infrastructure. Owing to the complexity of hydrologic systems, increases in the frequency and intensity of large precipitation events do not always translate into increases in surface runoff measured as event flow at the basin outlet. However, recent studies have recognized positive trends in the frequency and magnitude of high-flow events in New England. For high-flow events of equal or greater than 2-year daily runoff, the runoff coefficients, or the fraction of precipitation converted into surface runoff …