Results 21 to 30 of about 70,788 (268)

Impact of Phytophthora agathidicida infection on canopy and forest floor plant nutrient concentrations and fluxes in a kauri‐dominated forest

Ecology and Evolution, 2021
Kauri dieback, caused by Phytophthora agathidicida, is a biotic disturbance that poses a recent threat to the survival of kauri (Agathis australis) forests in New Zealand.
Luitgard Schwendenmann, Beate Michalzik
doaj   +1 more source

Physical properties characterization of a peritectic mold flux formed from the addition of calcitic marble residue in the commercial one

Journal of Materials Research and Technology, 2019
Mold fluxes play an important role in the lubrication and heat transfer control between the mold wall and steel shell during the continuous casting process.
Igor Teixeira da Costa, Cássio Santos de Carvalho, José Roberto de Oliveira, Estéfano Aparecido Vieira   +3 more
doaj   +1 more source

Effects of CeO2 on Viscosity, Structure, and Crystallization of Mold Fluxes for Casting Rare Earths Alloyed Steels

Metals, 2019
The CaO-Al2O3-based mold fluxes are proposed for the Ce-bearing heavy rail steel continuous casting because of the low reactivity. Effects of CeO2 on the melting temperature, the viscous property, and the crystallization behavior of the CaO-Al2O3-Li2O ...
Zeyun Cai, Bo Song, Longfei Li, Zhen Liu, Xiaokang Cui   +4 more
doaj   +1 more source

Modelling time-integrated fluxes of CO2 and CH4 in peatlands: A review [PDF]

Mires and Peat, 2019
There is widespread interest in estimating annual carbon dioxide (CO2) and methane (CH4) budgets for peatlands using data collected from flux chambers. Flux-chamber measurements are a snapshot of the conditions on a particular site and may not adequately
A.J. Baird, S.M. Green, E. Brown, G.P. Dooling   +3 more
doaj   +1 more source

High-resolution land surface fluxes from satellite and reanalysis data (HOLAPS v1.0): evaluation and uncertainty assessment [PDF]

Geoscientific Model Development, 2016
Surface water and energy fluxes are essential components of the Earth system. Surface latent heat fluxes provide major energy input to the atmosphere. Despite the importance of these fluxes, state-of-the-art data sets of surface energy and water fluxes ...
A. Loew, J. Peng, M. Borsche
doaj   +1 more source

Chemical Weathering of Loess and Its Contribution to Global Alkalinity Fluxes to the Coastal Zone During the Last Glacial Maximum, Mid‐Holocene, and Present

Geochemistry, Geophysics, Geosystems, 2020
Loess sediments are windblown silt deposits with, in general, a carbonate grain content of up to 30%. While regionally, loess was reported to increase weathering fluxes substantially, the influence on global weathering fluxes remains unknown.
Janine Börker, Jens Hartmann, Thorben Amann, Gibran Romero‐Mujalli, Nils Moosdorf, Chris Jenkins   +5 more
doaj   +1 more source

Comparison of blue and green water fluxes for different land use classes in a semi-arid cultivated catchment using remote sensing

Journal of Hydrology: Regional Studies, 2021
Study area: Kikuletwa catchment, Upper Pangani River Basin, Tanzania. Study focus: This study compared yearly blue and green water fluxes using four different methods: Senay’s method (SN) (Senay et al., 2016), van Eekelen method (EK) (van Eekelen et al.,
Anna Msigwa, Hans C. Komakech, Elga Salvadore, Solomon Seyoum, Marloes L. Mul, Ann van Griensven   +5 more
doaj   +1 more source

Reactivity and thermo-physical properties of MnO-modified CaO-Al2O3-based mold fluxes for advanced high-strength steels

Journal of Materials Research and Technology, 2020
Advanced high-strength steels (AHSS) with superior strength, formability and ductility meet the new demand for balancing vehicle performance and passenger safety in the automotive industry.
Guan-ling Ou, Yu-chen Liu, Shao-yu Yen, Han-yu Wang, Yen-Hao Su, Muh-Jung Lu, Shih-kang Lin   +6 more
doaj   +1 more source

A new approach for simultaneously retrieving cloud albedo and cloud fraction from surface-based shortwave radiation measurements

Environmental Research Letters, 2013
Surface-based measurements of shortwave (SW) radiative fluxes contain valuable information on cloud properties, but have not been fully used to infer those properties.
Yu Xie, Yangang Liu
doaj   +1 more source

Validation of parameterizations for the surface turbulent fluxes over sea ice with CHINARE 2010 and SHEBA data

Polar Research, 2013
This study examines the modelled surface turbulent fluxes over sea ice from the bulk algorithms of the Beijing Climate Centre Climate System Model (BCC_CSM), the European Centre for Medium-Range Weather Forecasts (ECMWF) model and the Community Earth ...
Yixiong Lu, Mingyu Zhou, Tongwen Wu
doaj   +1 more source