Results 1 to 10 of about 11,773,836 (295)

Surface Area

open access: yesStudies in Social Justice, 2021
Terry Trowbridge
doaj   +4 more sources

Environmentally Friendly Anticorrosive Polymeric Coatings

open access: yesApplied Sciences, 2021
This paper provides a synthetic and comprehensive overview on environmentally friendly anticorrosive polymeric coatings. Firstly, the economic and environmental impact of corrosion is presented to highlight the need of anticorrosive polymeric coatings as
Mirko Faccini   +7 more
doaj   +1 more source

Processes and mechanisms of vegetation ecosystem responding to climate and ecological restoration in China

open access: yesFrontiers in Plant Science, 2022
Vegetation is an essential component of the earth’s surface system and its dynamics is a clear indicator of global climate change. However, the vegetation trends of most studies were based on time-unvarying methods, cannot accurately detect the long-term
Tiantian Chen   +4 more
doaj   +1 more source

Shear Strength of Purple Topsoil Under Different Land Uses in the Three Gorges Reservoir Area, China

open access: yesMountain Research and Development, 2021
The shear strength of topsoil indicates the resistance of surface land to external erosive forces and represents a key variable for inferring the extent and rate of soil erosion.
Jincheng Kang   +3 more
doaj   +1 more source

Surface Area Determination [PDF]

open access: yesNature, 1946
IN the determination of surface area using nitrogen at the temperature of liquid nitrogen by the method of Brunauer, Emmett and Teller1, it is usual to determine the dead-space on each sample, using helium. For routine determinations on a substance known to give S-shaped isotherms, that is, where the equation of Brunauer, Emmett and Teller is ...
P E, BUGGE, R H, KERLOGUE, F, WEST WICK
openaire   +2 more sources

Lipidomics Prediction of Parkinson’s Disease Severity: A Machine-Learning Analysis

open access: yesJournal of Parkinson’s Disease, 2021
Background: The role of the lipidome as a biomarker for Parkinson’s disease (PD) is a relatively new field that currently only focuses on PD diagnosis. Objective: To identify a relevant lipidome signature for PD severity markers.
Hila Avisar   +6 more
doaj   +1 more source

Assessment of Land Use Pattern and Landscape Ecological Risk in the Chengdu-Chongqing Economic Circle, Southwestern China

open access: yesLand, 2022
The Chengdu-Chongqing Economic Circle (CCEC) is becoming the fourth growth pole in China after the Yangtze River Delta Economic Circle (YRDEC); Guangdong, Hong Kong, and Macao Economic Circle (GBAEC); Beijing, Tianjin, and Hebei Economic Circle (BTHEC ...
Chunfen Zeng   +4 more
doaj   +1 more source

Metals and Environment: Chemical Outputs From the Interaction Between Gilded Copper-Based Objects and Burial Soil

open access: yesFrontiers in Materials, 2020
Three-dimensional chemical mapping was adopted to investigate an ancient fire-gilded buckle found in Rome. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) and scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS) were used ...
Valerio Graziani   +7 more
doaj   +1 more source

Comparative Behavior of Viscose-Based Supercapacitor Electrodes Activated by KOH, H2O, and CO2

open access: yesNanomaterials, 2022
Activated carbons derived from viscose fibers were prepared using potassium hydroxide, carbon dioxide, or water vapor as activation agents. The produced activated carbon fibers were analyzed via scanning electron microscopy and energy dispersive X-ray ...
Stefan Breitenbach   +6 more
doaj   +1 more source

AN EXAMPLE IN SURFACE AREA [PDF]

open access: yesProceedings of the National Academy of Sciences, 1969
For length and area, a central fact is that the value of the length of a curve or the area of a surface, as given by the Lebesgue theory, is at least as great as that given by the classical formula, whenever the latter has meaning. This is now found not to be valid in higher dimensions.
openaire   +4 more sources

Home - About - Disclaimer - Privacy