Results 61 to 70 of about 7,306 (194)

Evaluation of the current state of aquatic ecosystems and the problems of the protection of biological resources during development of kruzenshternskoye gcf [PDF]

, 2015
The results of studies of the current state of freshwater ecosystems and their biotic components in the western part of the Yamal Peninsula are presented in the article.
Bogdanov, V. D., Bogdanova, Ye. N., Melnichenko, I. P., Stepanov, L. N., Yarushina, M. I.   +4 more
core   +1 more source

Modeling the Thermal Properties of Hydrogen‐Based Direct Reduced Iron Using Computational Thermodynamics and Machine Learning

steel research international, EarlyView.
Hydrogen‐based direct reduced iron (H‐DRI) melts differently from scrap and carbon‐bearing DRI. This work combines differential scanning calorimetry experiments, FactSage thermodynamics, and simple composition‐based regression to predict solidus, liquidus, heat capacity, and enthalpy for H‐DRI.
Ankur Agnihotri, Petri Sulasalmi, Pasquale Cavaliere, Ville‐Valtteri Visuri   +3 more
wiley   +1 more source

Pre-Screen Loss and Fish Facility Efficiency for Delta Smelt at the South Deltas State Water Project, California [PDF]

San Francisco Estuary and Watershed Science, 2012
Water exports have been implicated in the decline of fish populations in the upper San Francisco Estuary, California. We evaluated the relation between delta smelt salvage at the John E.
Castillo, Gonzalo, Morinaka, Jerry, Lindberg, Joan, Fujimura, Robert, Baskerville-Bridges, Bradd, Hobbs, James, Tigan, Galen, Ellison, Luke   +7 more
openaire   +3 more sources

Ecology of common bully (Gobiomorphus cotidianus) in the Tarawera and Rangitaiki rivers: isolation by inland distance or anthropogenic discharge? [PDF]

, 2009
Previous research has identified distinct genetic, life-history and reproductive differences between populations of common bully (Gobiomorphus cotidianus) upstream and downstream of a pulp and paper mill outfall on the Tarawera River in the Bay of Plenty,
Ahnelt H, Coombs S, Fuiman LA, Joy MK, Kelso JRM, Landman MJ, McDowall RM, Modgans J, Ovenden JR, Sprague JB, Swearer SE, Taylor JR   +11 more
core   +2 more sources

Sequential Reduction of Chromite Pellets Using Hydrogen and Silicon Carbide for Carbon Emission Abatement During Ferrochrome Production

steel research international, EarlyView.
H2 prereduction selectively metallizes Fe in UG2 chromite pellets at 1100°C, while silicon carbide becomes active at 1300°C to convert remaining Cr2O3 to carbides and promote Cr metallization. By separating the roles of H2 and SiC, the sequential route reaches up to 65.7% Cr metallization and suppresses in‐furnace CO generation by ≈75% versus ...
D. Coertzen, M. Tangstad, J. P. Beukes, P. G. van Zyl, D. G. Bessarabov, S. P. du Preez   +5 more
wiley   +1 more source

The Spawning Migration of Delta Smelt in the Upper San Francisco Estuary

San Francisco Estuary and Watershed Science, 2011
Ted Sommer, Francine Mejia, Matt Nobriga, Fred Feyrer, and Lenny Grimaldodoi: http://dx.doi.org/10.15447/sfews.2014v9iss2art2While there is substantial information about the upstream migration of commercially and recreationally important fishes ...
Ted Sommer, Francine H Mejia, Matthew L. Nobriga, Frederick Feyrer, Lenny Grimaldo   +4 more
doaj  

Climate change and the Delta, San Francisco Estuary and Watershed Science [PDF]

, 2016
Anthropogenic climate change amounts to a rapidly approaching, “new” stressor in the Sacramento–San Joaquin Delta system. In response to California’s extreme natural hydroclimatic variability, complex water-management systems have been developed, even as
Anderson, Jamie, Anderson, Michael L., Brown, Larry R., Cayan, Daniel R., Dettinger, Michael D., Maurer, Edwin P.   +5 more
core   +1 more source

The slow emergence of the rational investor: Grain markets and grain storage of rural estates in western Germany, eighteenth and early nineteenth centuries

The Economic History Review, EarlyView.
Abstract We develop new datasets of monthly grain prices in 14 urban markets and of the storage and marketing of grain by 5 rural estates located in western Germany between the late seventeenth century and c. 1860. We explore whether observed patterns of monthly prices, sales, and storage of grain are consistent with the rational competitive storage ...
Matthias Hartermann, Ulrich Pfister, Friederike Scholten‐Buschhoff   +2 more
wiley   +1 more source

California Water Myths [PDF]

, 2009
Presents eight common myths about water supply, ecosystems, and the legal and political aspects of governing California's water system and explains how each myth drives the debate, the reality, and alternatives for better informed policy ...
Ariel Dinar, Barton "Buzz" Thompson, Brian Gray, Ellen Hanak, Jay Lund, Jeffrey Mount, Peter Moyle, Richard Howitt   +7 more
core  

A first-order phase transition at the random close packing of hard spheres

, 2016
Randomly packing spheres of equal size into a container consistently results in a static configuration with a density of ~64%. The ubiquity of random close packing (RCP) rather than the optimal crystalline array at 74% begs the question of the physical ...
Alder, Aste, Aste, Bargiel, Bernal, Berryman, Binder, Briscoe, Brujić, Brujić, Chaudhuri, Ciamarra, Clusel, Daanoun, Debenedetti, Donev, Edwards, Frenkel, Gao, Haji-Akbari, Haymet, Hernán A. Makse, Hoover, Jodrey, Kamien, Krzakala, Lubachevsky, Makse, Moscinski, Moukarzel, Nicolas, Nowak, Onoda, O’Hern, Parisi, Philippe, Pusey, Radin, Rintoul, Schröter, Scott, Skoge, Song, Speedy, Steinhardt, Torquato, Truskett, Vink, Wood, Yuliang Jin, Zhu   +50 more
core   +1 more source