Special issue of Environment and Planning A 48 (April 2016): 616-770. "Knowledge and the Politics of Land" (co-edited with Steven A.Special issue of Journal of Energy History / Revue d’histoire de l’énergie 2 (July 2019). “Light(s) and Darkness(es) / Lumière(s) et Obscurité(s): Shifting Historical Relations” (co-edited with Stéphanie Le Gallic).“Climate Change, Coronavirus, and Environmental Justice: A Collection of Undergraduate Creative Projects” (co-edited with Rebecca Harrison and Amanda Domingues).Cambridge, MA: Harvard University Press, 2011. Confluence: The Nature of Technology and the Remaking of the Rhône.Pittsburgh: University of Pittsburgh Press, 2013. New Natures: Joining Environmental History with Science and Technology Studies (co-edited with Dolly Jørgensen and Finn Arne Jørgensen).Baltimore: Johns Hopkins University Press, forthcoming 2020. Technology and the Environment in History (with Carl A.History of technology (including environmental management technologies, colonialism, and gender), environmental history, and their intersection (envirotech) environmental knowledge-making environmental and technical expertise conservation science, politics, and history. Sara works with graduate students not only in STS and History, but also in Design and Environmental Analysis, Development Sociology, History of Architecture and Natural Resources. This research has been supported by grants from the National Science Foundation (Scholars' Award #1555767, Program in Science, Technology, and Society), as well as Cornell's Society for the Humanities and Institute for the Social Sciences. Sara's second book project, From Blue to Black Marble: Knowing Light Pollution in the Anthropocene, explores how different scientific communities have studied artificial light at night and specifically environmental light pollution since the 1970s. The book's Introduction outlines a theoretical framework for envirotechnical analysis, which scrutinizes the relationship between nature and technology, historically and analytically. She shows not only how technological development and environmental management were central to state building and shifting political identities in France, but also how historical actors reworked the boundaries of nature and technology, both materially and discursively. Her first book, Confluence: The Nature of Technology and the Remaking of the Rhône (Cambridge, Mass.: Harvard University Press, 2011), examines the history of the transformation of France's Rhône River since World War II. Pacific Gyre POM susp, we compared our data with offshore station ALOHA.Professor Sara Pritchard is a historian of technology and an environmental historian. Finally, to evaluate the appeal of large-volume filtrations at NELHA to study central N. We also compared composition of UPOM versus GFF-POM, finding clear differences, which also varied between surface and mesopelagic waters.
We evaluated flow rates, fouling behavior, carbon and nitrogen recoveries and compositions, and also bacteria and virus retention of ultrafiltered-POM (UPOM) using both 0.1 µm and 500 kilodalton pore size membranes. Pacific central seawater from ocean pipeline sources at the Natural Energy Laboratory Authority of Hawaii (NELHA), while simultaneously collecting GFF-POM samples.
#BRETT WALKER UNIVERSITY OF HAWAII SERIES#
We conducted a series of tests using both surface (21 m) and mesopelagic (674 m) N.
Our system functioned comparably to previously described commercial units. The system can be readily assembled using off-the-shelf parts at a fraction of the cost of commercial UF systems. The overall apparatus consists of two sequential UF steps: a main filtration system (100 L reservoir) driven by a stainless steel centrifugal pump, and a subsequent reduction/ diafiltration system (2 L reservoir) driven by a peristaltic pump. We describe the construction and testing of a home-built ultrafiltration (UF) system, based on commercially available hollow fiber polysulfone membranes, for isolation of suspended particulate organic matter (POM susp) from large volumes (2000–10,000 L) of ocean water.
0 kommentar(er)
