Results 71 to 80 of about 2,703,436 (300)

Where Do Stingless Bees Collect Plant Resins in the Neotropics?

open access: yes
Stingless bees are the largest group of social bees, with greater diversity in the Neotropics. They obtain plant resins and other exudates for nest construction, protection, nutrition, and communication, and local people have traditionally exploited ...
Nates Parra, Guiomar   +3 more
core   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Processing of Chloride-Containing Productive Solutions after Uranium in situ Leaching by Ion Exchange Method

open access: yesIndonesian Journal of Chemistry, 2019
The uranium sorption from productive solutions containing chloride ions using anion-exchange resins was investigated. The VPAE ion exchanger had the highest values of the sorption capacity, which for the experiment in the static mode was 13 kg U m-3, and
Svetlana Titova   +3 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Evaluation of Inhibition Activity of Rosmerinus officinalis plant watery and oily extracts on some pathogenic Microorganisms

open access: yesThe Iraqi Journal of Veterinary Medicine, 2009
This study included evaluation of inhibition activity of watery and oily extracts of Rosmerinus officinalis plant on some pathogenic microorganisms like Salmonella typhi، Escheichia coli ، Staphylococcus aureus ، Klebsiella pneumoniae، Aeromonas ...
Auroba M.S. Ibrahim
doaj   +1 more source

Cement waste-form development for ion-exchange resins at the Rocky Flats Plant [PDF]

open access: yes, 1997
This report describes the development of a cement waste form to stabilize ion-exchange resins at Rocky Flats Environmental Technology Site (RFETS). These resins have an elevated potential for ignition due to inadequate wetness and contact with nitrates ...
Veazey, G. W., Ames, R. L.
core   +1 more source

Low viscosity alkyd resins based on trimethylolpropane and Peruvian oil

open access: yes, 2021
The high-unsaturated fatty acid content of Sacha inchi oil (SIO), a perennial plant originally from Peru, has turned it into a potential raw material for the production of alkyd resins. In this study, different proportions of multifunctional polyols were
Flores S.   +7 more
core   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Plant diseases caused by heavy metals and their phytiatry with cation exchangers

open access: yesActa Agrobotanica, 2015
The noxious influence of heavy metals as lead, zinc, copper and lead on higher plants and soil fungi was described. Addition to the soil of Levatit cation exchangers consisting of polystyrene porous resins, charged with calcium or manganese in granulated
C. Van Assche, Ir. W. De Mey
doaj   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy