Results 31 to 40 of about 939,083 (294)

Regulating Enzymatic Antioxidants, Biochemical and Physiological Properties of Tomato under Cold Stress: A Crucial Role of Ethylene

open access: yesAgriculture, 2023
The production of tomato under low-temperature stress in the open fields is a challenge faced by many farmers. The current study compares the use of different ethylene treatments to accelerate the fruit ripening of tomato during two successive seasons ...
Yousry Bayoumi   +5 more
doaj   +1 more source

Analysis of positive solutions for classes of quasilinear singular problems on exterior domains

open access: yesAdvances in Nonlinear Analysis, 2017
We consider the ...
Chhetri Maya   +2 more
doaj   +1 more source

Radioactive Decay

open access: yes, 2022
Radioactive decay of unstable atomic nuclei leads to liberation of nuclear binding energy in the forms of gamma-ray photons and secondary particles (electrons, positrons); their energy then energises surrounding matter. Unstable nuclei are formed in nuclear reactions, which can occur either in hot and dense extremes of stellar interiors or explosions ...
openaire   +3 more sources

Black Layers of Decay and Color Patterns on Heritage Limestone as Markers of Environmental Change

open access: yesGeosciences, 2016
Air pollution induces the development of black crusts on the surface of built heritage materials. Black layers on the limestone used on an emblematic Madrilenian building dating from the early twentieth century, mainly built up in the 20 years lapsing ...
Elena Mercedes Perez-Monserrat   +3 more
doaj   +1 more source

Aggregation and Feeding Behavior of the Formosan Subterranean Termite (Isoptera: Rhinotermitidae) on Wood Decayed by Three Species of Wood Rot Fungi

open access: yesSociobiology, 2014
Aggregation and feeding behavior of the Formosan subterranean termite, Coptotermes formosanus Shiraki, was evaluated on wood decayed by three species of fungus, the brown rot fungus, Gloeophyllum trabeum and two white rot fungi, Phanerochaete ...
Mary L. Cornelius
doaj   +1 more source

Measurement and analysis of electric potential decay in corona charged low-density polyethylene films [PDF]

open access: yes, 2007
In this paper, corona charged LDPE film was tested using a standard static potential monitor and the pulsed electro-acoustic (PEA) technique to observe the surface potential decay.
Z. Xu   +5 more
core   +2 more sources

Brick durability and conservation treatment (Santa María de Jesús chapel portal, Seville, Spain)

open access: yesMateriales de Construccion, 2009
Durability differences of 2 types of brick from Santa María de Jesús Chapel (Sevilla) and 2 treatments for its restoration have been studied. They have been characterizad using XRD and SEM, as well as their physical, hydric and mechanical properties ...
F. J. Alejandre, R. Villegas
doaj   +1 more source

Biotic and abiotic synergies in a log ecosystem

open access: yesDavao Research Journal
Log ecosystems are unique ecosystems that arise from fallen trees, forming microhabitats that exhibit distinct ecological dynamics. This paper aims to describe what a log ecosystem is and what are its components and their connection.
Larizza Faith N. Del Socorro
doaj   +1 more source

Experimental Procedures of Accelerated Aging and Evaluation of Effectiveness of Nanostructured Products for the Protection of Volterra (Italy) Panchina Stone

open access: yesBuildings, 2022
The aims of the research were to evaluate the effectiveness of the application of nanostructured products on Volterra calcarenite stone and to define the experimental conditions and procedures of accelerated aging tests, able to simulate different ...
Federica Fernandez   +5 more
doaj   +1 more source

Impact of Structural Defects on the Surface Quality of Hardwood Species Sliced Veneers

open access: yesApplied Sciences, 2020
The surface roughness constitutes one of the most critical properties of wood and wood veneers for their extended utilization, affecting the bonding ability of the veneers with one another in the manufacturing of wood composites, the finishing, coating ...
Vasiliki Kamperidou   +2 more
doaj   +1 more source

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