Results 31 to 40 of about 720,996 (317)

4D Printing of Hydrogels Controlled by Hinge Structure and Spatially Gradient Swelling for Soft Robots

open access: yesMachines, 2023
In 4D printing, structures with gradients in physical properties are 3D printed in order to dramatically increase deformation. For example, printing bilayer structures with passive and active layers has been proposed, however, these methods have the ...
Masanari Kameoka   +9 more
doaj   +1 more source

Wetting films and wetting [PDF]

open access: yesRevue de Physique Appliquée, 1988
Macroscopic approach to the wetting phenomena, based on the isotherms of disjoining pressure of wetting films in equilibrium with concave menisci or drops, allows one to calculate the contact angles for different liquids and solid substrates. The results of calculations are presented using the theory of long-range surface forces, and their agreement ...
openaire   +1 more source

Reducing Gas Emissions from Ratooning Rice Field Using Controlled Nitrogen Fertilization and Alternate Wetting-drying Irrigation

open access: yesGuan'gai paishui xuebao, 2021
【Background and objective】 Rice field is an important source of greenhouse gases and how to reduce its gas emissions plays an important role in battling global warming.
DING Zijuan   +6 more
doaj   +1 more source

Power density modulated ultrasonic degradation of perfluoroalkyl substances with and without sparging Argon

open access: yesUltrasonics Sonochemistry, 2021
The power density modulates the dynamics of the chemical reactions during the ultrasonic breakdown of organic compounds. We evaluated the ultrasonic degradation of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) at various power ...
Takshak Shende   +2 more
doaj   +1 more source

Timely and Durable Polymer Modified Patching Materials for Pothole Repairs in Low Temperature and Wet Conditions

open access: yesApplied Sciences, 2019
Aiming to solve the contradiction between the workability and performance of pothole patching using cold mixtures, this paper proposed new patching materials based on the microcapsule technique and polymer reinforcement, namely cold mixtures with polymer
Sen Han   +5 more
doaj   +1 more source

Fabrication of electrospun Mondia whitei/PVA nanofibres: application in the removal of acidic drugs

open access: yesHeliyon, 2022
Novel electrospun Mondia whitei/PVA blend nanofibres were fabricated for potential water treatment applications by blending a natural polymer extracted from Mondia whitei (MW) roots with poly (vinyl alcohol) (PVA). The fabricated nanofibres were shown to
Ramakwala Christinah Chokwe   +3 more
doaj   +1 more source

Morele dilemma's in de sociaal juridische dienstverlening: een professional is geen jukebox!

open access: yesJournal of Social Intervention, 2009
The central focus of this article is on the moral dilemmas that social servants face when applying the law. These moral dilemmas result from the professional’s discretionary space.
Lizet van Donkersgoed
doaj   +1 more source

Coexistence of multi-scroll chaotic attractors for a three-dimensional quadratic autonomous fractional system with non-local and non-singular kernel

open access: yesAlexandria Engineering Journal, 2021
In this paper, we present a numerical scheme and mathematical analysis for the famous three-dimensional quadratic autonomous self-govern system that happens to be chaotic with the coexistence of multi-scroll attractors.
D. Mathale   +2 more
doaj   +1 more source

Atmospheric Extinction Corrections for WET Observations

open access: yesOpen Astronomy, 2003
Account of the extinction in the Earth’s atmosphere is an important part of the WET light curve reduction procedures. Usually, WET observations are not corrected for the second order extinction effects: the dependence of the extinction coefficient on ...
Pakštienė E., Solheim J. E.
doaj   +1 more source

Comparisons of Meso-Scale Air Pollution Dispersion Modelling of S02, N02 and 03 Using Regional-Scale Monitoring Results

open access: yesClean Air Journal, 2010
Results of a regional-scale monitoring campaign were compared with two meso-scale to sub-continental modelling studies, for S02 and N02 and 03 respectively (Fourie, 2006, Zunckel et al., 2006, van Tienhoven et al., 2006, Van Tienhoven and Zunckel, 2004).
M. Josipovic   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy