Results 1 to 10 of about 941,908 (310)

Intensification of tilted atmospheric vortices by asymmetric diabatic heating [PDF]

open access: green, 2017
P\"aschke et al. (JFM, 701, 137--170 (2012)) studied the nonlinear dynamics of strongly tilted vortices subject to asymmetric diabatic heating by asymptotic methods.
Dörffel, Tom   +3 more
core   +4 more sources

Workload, work intensification and time poverty for teachers and school leaders: a systematic research synthesis

open access: yesEducause Review, 2023
This paper presents a synthesis of research literature concerned with teachers’ and school leaders’ experiences of workload and work intensification. Forty papers met the inclusion criteria for the research synthesis.
S. Creagh   +4 more
semanticscholar   +1 more source

Sb distribution in the phases of SiO2 saturated Sb-Fe-O-SiO2-CaO system in air [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2021
Sb distribution in the phases of SiO2 saturated Sb-Fe-O-SiO2-CaO system was determined for the first time through hightemperature experiment and quenching techniques, followed by Electron probe X-ray microanalysis (EPMA) in air (Ptot = 1 atm, PO2 = 0.21 ...
Zhang Z.T., Nie H.P., Yan K.
doaj   +1 more source

Agricultural intensification and climate change are rapidly decreasing insect biodiversity

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Major declines in insect biomass and diversity, reviewed here, have become obvious and well documented since the end of World War II. Here, we conclude that the spread and intensification of agriculture during the past half century is directly related to
P. Raven, D. Wagner
semanticscholar   +1 more source

Recent intensification of wetland methane feedback

open access: yesNature Climate Change, 2023
Atmospheric methane concentrations are increasing and a process-based model now estimates greater methane emissions from wetlands since 2007 than previous studies.
Zhen Zhang   +6 more
semanticscholar   +1 more source

Polyvinylidene Fluoride Membrane with a Polyvinylpyrrolidone Additive for Tofu Industrial Wastewater Treatment in Combination with the Coagulation–Flocculation Process

open access: yesMembranes, 2021
Wastewater from the tofu industry contains many pollutants that are very harmful to the environment, significantly endangering aquatic life and producing a pungent odor.
Irfan Purnawan   +5 more
doaj   +1 more source

Design of vortex-based cavitation devices/reactors: Influence of aspect ratio, number of inlets and shape

open access: yesUltrasonics Sonochemistry, 2023
Vortex-based hydrodynamic cavitation devices are being used in a wide range of applications. However, adequate information on the design of such devices is not available.
Amol Gode, Ketan Madane, Vivek V. Ranade
doaj   +1 more source

Design of Service Robot for Wearing and Taking off Footwear [PDF]

open access: yesE3S Web of Conferences, 2020
In order to realize the automation and integration of wearing and taking off shoes and socks, a service robot for wearing and taking off footwear was designed to help persons living with waist or leg problems in this paper.
Li Yunsheng   +4 more
doaj   +1 more source

Preparation of metallic arsenic from calcium arsenate by carbon thermal roasting reduction

open access: yes工程科学学报, 2022
Given the widespread application of the lime precipitation process for arsenic removal in the smelting of arsenic-containing minerals, the resourcefulness of calcium arsenate use has received increasing attention.
Min XIONG   +6 more
doaj   +1 more source

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