Results 21 to 30 of about 1,373 (296)

Influence of the modes of shaping of sand-resin shellis on quality of the produced castings

open access: yesЛитьë и металлургия, 2019
Resin in sand-resin mixes in the course of heating at production of casting shell molds undergoes changes of a state: solid – liquid – solid. For the purpose of increase in durability and decrease in contents of binding (pulverbakelit) in mix when ...
V. Yu. Kulikov   +4 more
doaj   +1 more source

Adsorció d'or i zinc amb resines impregnades XAD-2. Superfície d'Equilibri, un nou concepte per a l'adsorció [PDF]

open access: yes, 2001
Dins dels processos de recuperació de metalls de dissolucions diluïdes s'ha realitzat un estudi del procés d'extracció d'or i de zinc mitjançant resines amberlite XAD-2 impregnades amb sulfur de triisobutil fosfina (TIBPS) i àcid di-(2-etilhexil ...
Serarols i Font, Joan Lluís
core   +2 more sources

Optimització del temps de procés en la producció de resines polièster i alquídiques [PDF]

open access: yes, 2006
El present projecte presenta l’optimització del procés que es du a terme en una planta productora de resines. El projecte té com a finalitat principal la disminució del temps de procés per a les resines polièsters i alquídiques que es produeixen a la ...
Ferre Vallverdú, Lluís
core   +2 more sources

Study of Asphaltene Solutions by Electrical Conductivity Measurements Conductivité électrique des solutions d'asphaltènes

open access: yesOil & Gas Science and Technology, 2006
The asphaltene interactions in model solutions were studied using a technique based on the electrical conductivity measurement. Interactions with n-heptane, resins, surfactants, water, phenol and NaCI were investigated.
Behar E.   +3 more
doaj   +1 more source

Moltura mecànica de resines en molí de boles

open access: yes, 2021
En aquest vídeo explicarem el procediment per a triturar de forma mecànica les peces procedents de resines naturals destinades a la fabricació d'aglutinants i vernissos per a pintar, descrivint els passos necessaris i els aspectes fonamentals per a poder
Galbis Juan, Amparo   +1 more
core  

Resin-to-Resin Circularity in Chemical Recycling of Dicyclopentadiene-Based Cycloolefin Resins [PDF]

open access: yesJournal of the American Chemical Society
Cycloolefin resins (CORs) comprising dicyclopentadiene (DCPD) cross-linkers are high performance thermosets for diverse single-use applications. If it were possible to carry out deconstruction of DCPD thermosets through exclusive reformation of the cyclopentene ring in DCPD, then linear polyDCPD chains could re-enter subsequent manufacturing cycles and
Zhen Xu   +9 more
openaire   +2 more sources

L’EPURATION TERTIAIRE DES EAUX USEES DE L’INDUSTRIE DE LA CELLULOSE [PDF]

open access: yesAnnals: Series on engineering sciences (Academy of Romanian Scientists), 2010
Les processus de fabrication de la cellulose représentent des sources importantes de pollution tant pour les eaux, que pour l’aire et le sol. La pollution de l’eau est du, essentiellement, aux substances organiques dissous, aux substances en suspension ...
Constantin STANCIU
doaj  

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +1 more source

Résines et asphaltènes : évolution en fonction des types de matière organique et de leur enfouissement Resins and Asphaltenes: Evolution As a Function of Organic-Matter Type and Burial

open access: yesOil & Gas Science and Technology, 2006
151 résines et 175 asphaltènes d'extraits de roche de plusieurs bassins ont été étudiés par analyse élémentaire. On montre que : - les résines ont des valeurs moyennes en carbone et en hydrogène plus élevées ainsi qu'un rapport C/H plus faible que celui ...
Castex H.
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

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