156 research outputs found

    Reorganizing and Financing Agricultural Cooperatives

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    Implementation of Open Innovation in Chemical B2B Companies

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    In a survey-based study including 42 companies of the chemical B2B industry, the sage and dissemination of Open Innovation (OI) initiatives are investigated. The article focuses on strategies and the motivation to implement OI tools. By summarizing the empirical evidence of OI, the success of projects and perceived satisfaction with the chosen approach is assessed using qualitative comparative analysis (QCA). The results show a very diverse picture of OI approaches in the chemical B2B industry, as only 52% of the participants’ state to use OI at all. However, the potential to use OI for exploration and exploitation purposes is revealed, which is especially of interest for a productive and successful implementation. In addition, the need of top management support to successful implement an OI approach is shown

    Reorganizing and Financing Agricultural Cooperatives

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    Experiential education and outreach based on nearshore monitoring of the Elwha River restoration project

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    Nearshore monitoring of benthic habitats and the coastal environment following the Elwha River Restoration project has engaged students and citizens with coastal science and management issues. In the post-dam-removal period, the lessons learned will continue to be disseminated via a UW undergraduate course and an interactive digital map, both designed to engage students and communities in restoration science. The research-focused course developed at the UW Friday Harbor Labs has allowed us to engage diverse undergraduate students (and graduate teaching assistants) in the research process. The course integrates interdisciplinary lectures and workshops on data analysis and laboratory methods, with the research process; from proposal to oceanographic data collection to analysis to publication. The course provides opportunities for student creativity and leadership. Outcome tracking indicates that these undergraduate (and post-bac) students are generally attending graduate school at a high rate, and launching careers in education, coastal management, and other STEM fields. To engage a broader segment of the community and to support decision-making about large-scale coastal restoration projects, we have developed an interactive digital map that will be available on-line, and will also be piloted as a physical interpretive display at the Feiro Marine Life Center in Port Angeles, WA. The interactive digital map is designed to effectively tell the story of the Elwha restoration in the coastal environment through the compilation and display of multiple data sets, some of which have never before been publicly available. Ultimately, the result of long-term monitoring of the Elwha nearshore system will provide a better understanding of the effects of restoration activities, such as dam removal on benthic habitats, and this knowledge will be passed to future managers and citizens through educational and outreach activities that captivate and inspire a broad audience

    Carrier-envelope offset stable, coherently combined ytterbium-doped fiber CPA delivering 1 kW of average power

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    We present a carrier-envelope offset (CEO) stable ytterbium-doped fiber chirped-pulse amplification system employing the technology of coherent beam combining and delivering more than 1 kW of average power at a pulse repetition rate of 80 MHz. The CEO stability of the system is 220 mrad rms, characterized out-of-loop with an f -to-2f interferometer in a frequency offset range of 10 Hz to 20 MHz. The high-power amplification system boosts the average power of the CEO stable oscillator by five orders of magnitude while increasing the phase noise by only 100 mrad. No evidence of CEO noise deterioration due to coherent beam combining is found. Low-frequency CEO fluctuations at the chirped-pulse amplifier are suppressed by a “slow loop” feedback. To the best of our knowledge, this is the first demonstration of a coherently combined laser system delivering an outstanding average power and high CEO stability at the same time. © 2020 Optical Society of Americ

    Morainal Bank Evolution and Impact on Terminus Dynamics During a Tidewater Glacier Stillstand

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    Sedimentary processes are known to help facilitate tidewater glacier advance, but their role in modulating retreat is uncertain and poorly quantified. In this study we use repeated seafloor bathymetric surveys and satellite‐derived terminus positions from LeConte Glacier, Alaska, to evaluate the evolution of a morainal bank and related changes in terminus dynamics over a 17‐year period. The glacier experienced a rapid retreat between 1994 and 1999, before stabilizing at a constriction in the fjord. Since then, the glacier terminus has remained stabilized while constructing a morainal bank up to 140 m high in water depths of 240–260 m, with rates of sediment delivery of 3.3 Å~ 105 to 3.8 Å~ 105 m3 a−1. Based on repeated interannual surveys between 2016 and 2018, the moraine is a dynamic feature characterized by push ridges, evidence of active gravity flows, and bulldozing by the glacier at rates of up to meters per day. Beginning in 2016, the summertime terminus has become increasingly retracted, revealing a newly emerging basin potentially signaling the onset of renewed retreat. Between 2000 and 2016, the growing moraine reduced the exposed submarine area of the terminus by up to 22%, altered the geometry of the terminus during seasonal advances, and altered the terminus stress balance. These feedbacks for calving, melting, and ice flow likely represent mechanisms whereby moraine growth may delay glacier retreat, in a system where readvance is unlikely.This work was supported by NSF Arctic Natural Sciences Grants OPP—1503910, 1504191, 1504288, and 1504521. National Geographic CP4‐171R‐17 to E. Pettit and J. Nash helped support 2018 cruise logistics.Ye

    Direct observations of submarine melt and subsurface geometry at a tidewater glacier

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    Ice loss from the world’s glaciers and ice sheets contributes to sea level rise, influences ocean circulation, and affects ecosystem productivity. Ongoing changes in glaciers and ice sheets are driven by submarine melting and iceberg calving from tidewater glacier margins.Ice loss from the world’s glaciers and ice sheets contributes to sea level rise, influences ocean circulation, and affects ecosystem productivity. Ongoing changes in glaciers and ice sheets are driven by submarine melting and iceberg calving from tidewater glacier margins. However, predictions of glacier change largely rest on unconstrained theory for submarine melting. Here, we use repeat multibeam sonar surveys to image a subsurface tidewater glacier face and document a time-variable, three-dimensional geometry linked to melting and calving patterns. Submarine melt rates are high across the entire ice face over both seasons surveyed and increase from spring to summer. The observed melt rates are up to two orders of magnitude greater than predicted by theory, challenging current simulations of ice loss from tidewater glaciers.Department of Earth Sciences, University of Oregon, Eugene, OR 97403, USA. 2 College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA. 3 Department of Natural Sciences, University of Alaska Southeast, Juneau, AK 99801, USA. 4 Institute for Geophysics, University of Texas at Austin, Austin, TX 78758, USA. 5 Department of Marine Sciences, University of North Carolina, Chapel Hill, NC 27599, USA. 6 Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK 99775, USA. *Corresponding author. Email: [email protected] †Present address: Department of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ 08901, USA.Ye
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