Results 11 to 20 of about 77,222 (268)

Adhesion of Resin-Resin and Resin–Lithium Disilicate Ceramic: A Methodological Assessment [PDF]

open access: yesMaterials, 2021
The aim of this study was to evaluate four test methods on the adhesion of resin composite to resin composite, and resin composite to glass ceramic. Resin composite specimens (N = 180, Quadrant Universal LC) were obtained and distributed randomly to test the adhesion of resin composite material and to ceramic materials (IPS e.max CAD) using one of the ...
Simon Guggenbühl   +3 more
openaire   +2 more sources

Impact of some selected insecticides and bio-pesticides on incidence of predators, parasitoid and productivity of lac insect, Kerria lacca

open access: yesThe Indian Journal of Agricultural Sciences, 2014
Two lepidopteran predators, Eublemma amabilis and Pseudohypatopa pulverea and Aprostocetus purpureus an endoparasitoid have emerged as a major threat to lac cultivation. The objectives of the current study were to identify some potential insecticides and
J P SINGH, A K JAISWAL, M D MONOBRULLAH
doaj   +1 more source

Synthesis of citric acid-modified resins and their adsorption properties towards metal ions [PDF]

open access: yesRoyal Society Open Science, 2018
Types of resins anchored on citric acid were synthesized and identified. The citric acid-modified resins PS-CA, PS-O-CA and PS-N-CA were synthesized by anchoring citric acid on PS-Cl, PS-OH and PS-NH2, respectively.
Xiong Liu   +3 more
doaj   +1 more source

Changes in composition and structure of nitrogenous bases of resin components of heavy oil from the Nurlatskoe oilfield in the course of thermal decomposition

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2023
The relevance. The need to obtain information on heat treatment effect on composition and structure of nitrogenous bases of resin components of heavy oil from the Nurlatskoe field (Republic of Tatarstan) to solve the problems associated with their ...
Natalia N. Gerasimova   +2 more
doaj   +1 more source

Low permittivity epoxy nanoporous composites filled with hollow nanosilica

open access: yesIET Nanodielectrics, 2019
An epoxy nanoporous composite (NPC) filled with hollow nanosilica exhibits lower permittivity than unfilled epoxy resin. The hollow nanosilica is a silica nanoparticle containing a nanometric closed pore.
Muneaki Kurimoto   +5 more
doaj   +1 more source

Effect of Seasonal Decrease in Temperature on the Content and Composition of Guayulins in Stems of Guayule (Parthenium argentatum, Gray)

open access: yesPlants, 2021
The guayulins are a family of sesquiterpene compounds that consist of an isoprenoid nucleus substituted either by trans-cinnamic or p-anisic acid, and are present only in the resinous fraction of the rubber plant guayule (Parthenium argentatum, Gray ...
Juana Rozalén   +5 more
doaj   +1 more source

Effects of interaction between filler and resin on the glass transition and dielectric properties of epoxy resin nanocomposites

open access: yesIET Nanodielectrics, 2019
Polymer nanocomposites are known to exhibit superior insulation performance. As a reason for this, interactions at the filler/polymer interfaces are widely believed.
Keigo Mori   +6 more
doaj   +1 more source

Properties of electrical tree resistance of silicone‐modified epoxy resin matrix composites

open access: yesIET Science, Measurement & Technology, 2023
In order to improve the electrical tree resistance of epoxy resin, composites were prepared using dihydroxydiphenylsilane and a novel silicone modifier modified epoxy resin and micron silica, and the composites were subjected to accelerated thermal aging
Yongqiang Wang   +3 more
doaj   +1 more source

Unlocking the application potential of superabsorbent polymers in landfill leachate treatment

open access: yesPolymer Testing
The leachate generation is an inevitable consequence of landfill disposal, and thus it is critically important to acquire effective approach to preventing contamination of the underlying soils and groundwater aquifers. Currently, there is no consensus on
Wuxiang Feng   +4 more
doaj   +1 more source

Maxillofacial prosthetic materials

open access: yesThe Journal of Indian Prosthodontic Society, 2009
Acquired and congenital defects of the face create an unfortunate condition for an individual. For the individual to lead a comfortable life requires facial rehabilitation, thus a reassessment of materials used in the field of maxillofacial prosthesis ...
S K Khindria   +2 more
doaj   +1 more source

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