Results 21 to 30 of about 2,374,007 (316)

A Novel Vegetation Index Approach Using Sentinel-2 Data and Random Forest Algorithm for Estimating Forest Stock Volume in the Helan Mountains, Ningxia, China

open access: yesRemote Sensing, 2023
Forest stock volume (FSV) is a major indicator of forest ecosystem health and it also plays an important part in understanding the worldwide carbon cycle.
Taiyong Ma   +7 more
doaj   +1 more source

Design of portable 3-axis filament winding machine with inexpensive control system

open access: yesJournal of Mechanical Engineering and Sciences, 2018
Filament winding technology is one of the fundamental fabrication methods invcomposite material fields, which has a high degree of automation. It is the process invwhich continuous strands or filament of fibres is wound on the mandrel, which is suitable
Ma Quanjin   +6 more
doaj   +1 more source

Degradable polymers: The role of the degradation environment

open access: yesJournal of environmental polymer degradation, 1997
The degradability of several degradable polymers was examined using three types of degradation environments. These include exposure in a laboratory-scale composting test system containing material representative of the organic fraction of municipal solid waste (MSW), exposure in a thermal hydrolytic environment consisting of water at 60‡C, and exposure
Day, M.   +4 more
openaire   +2 more sources

Effect of enclosure on reproductive allocation of wheatgrass Agropyron mongolicum populations in desert steppes

open access: yesEcology and Evolution, 2019
Plants generally adopt different reproductive strategies to adapt to their environments and increase their fitness. Here, we studied the effects of enclosure cultivation on the reproductive allocation of a wheatgrass species Agropyron mongolicum in the ...
Guoqi Li   +5 more
doaj   +1 more source

Oxidative degradation of polylactide (PLA) and its effects on physical and mechanical properties [PDF]

open access: yes, 2014
The thermo-oxidative degradation of polylactide (PLA) films was studied between 70 and 150 C. It was shown that the oxidative degradation of PLA leads to a random chain cission responsible for a reduction of the molar mass.
SOLLOGOUB, Cyrille   +5 more
core   +1 more source

CHD1L augments autophagy-mediated migration of hepatocellular carcinoma through targeting ZKSCAN3

open access: yesCell Death and Disease, 2021
Autophagy is an important biological process in normal cells. However, how it affects tumor progression still remains poorly understood. Herein, we demonstrated that the oncogenic protein Chromodomain-helicase-DNA-binding-protein 1-like gene (CHD1L ...
Xiaofeng Zhang   +14 more
doaj   +1 more source

Regional Farmers’ Perception and Societal Issues in Vineyards Affected by High Erosion Rates

open access: yesLand, 2021
We explore the current situation in a viticultural region in Eastern Spain from a holistic and multifaceted research approach, which allowed us to understand the biophysical conditions, economic cost, social impact, and perception of the farmers ...
Artemi Cerdà, Jesús Rodrigo-Comino
doaj   +1 more source

Platinum-containing compound platinum pyrithione suppresses ovarian tumor proliferation through proteasome inhibition

open access: yesJournal of Experimental & Clinical Cancer Research, 2017
Background Ovarian carcinoma is one of the most aggressive gynecological malignant neoplasms and makes up 25–30% of all cancer cases of the female genital tract.
Hongbiao Huang   +14 more
doaj   +1 more source

Degradation

open access: yes, 2018
.csv file with data for analysis of telomere degradation over time (ie., number of years sample was stored)
Timothy Greives (3240711)   +4 more
core   +1 more source

New organic matter degradation proxies: Valid in lake systems? [PDF]

open access: yes, 2004
We determined concentrations and diagenetic state of organic matter in two cores from Lake Zug, Switzerland. To obtain a general picture of organic matter decay in the lake, we measured bulk parameters such as total organic carbon, total nitrogen, and ...
C. J. Schubert   +9 more
core   +1 more source

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