An adaptive social network for information access: Theoretical and experimental results
作者:Bin Yu、Mahadevan Venkatraman、Munindar P. Singh
DOI:10.1080/713827056
日期:2003.1
approaches, our architecture is fully distributed and includes agents who preserve the privacy and autonomy of their users. These agents learn models of each other in terms of expertise (ability to produce correct domain answers) and sociability (ability to produce accurate referrals). We study our framework experimentally to study how the social network evolves. Specifically, we find that under our multi-agent
An Aromas kit uses containers of certain discrete molecules to provide odors suitable for an olfactory education of wine properties. The disclosed molecules may be found within certain wines and provide a useful olfactory reference when smelling a finished wine sample, even when the wine sample contains a myriad of other conflicting or competing molecule smells.
Nous avons isolé des produits de photochloration dufluorobenzène, un fluoro-hexachloro- et un fluoro-heptachloro-cyclohexane. Ce dernier composé, qui s'obtient également par addition de chlore au p-fluoro-chlorobenzène, donne, sous l'action du méthylate de sodium, le fluoro-1-tétrachloro-2,3,4,6-benzène, dont l'atome de fluor est relativement mobile.
氟代苯,氟-六氯和氟-七氯环己烷的光氯化反应产物。Ce derniercomposé,qui s'bantient e gaga par par de de chlore aup-fluoro-chlorobenzène,donne,甲磺酸钠,氟-1-四氯-2,3,4,6-benzène,dont l原子荧光亲戚移动。
Process for preparing branched poly(arylene sulfide ketone)
申请人:PHILLIPS PETROLEUM COMPANY
公开号:EP0450635A2
公开(公告)日:1991-10-09
A process for preparing a branched, high molecular weight poly(arylene sulfide ketone) by the addition of a polyhaloaromatic compound to a reaction mixture containing a dihaloaromatic ketone, an organic amide, an alkali metal sulfide, and water, and the product produced therefrom.
METHOD FOR DETECTING A VOLATILE ANALYTE FOR CLASSING AND SORTING CORK STOPPERS DEPENDING ON THE CONCENTRATION OF THE ANALYTE
申请人:Cork Supply Portugal, S.A.
公开号:EP3165918A1
公开(公告)日:2017-05-10
A method for detecting a volatile analyte for categorization and separation of cork stoppers depending on the concentration of the said analyte, with the detection being carried out in concentrations within the range of ng/L (parts per trillion), in a concentrated gas over the cork stoppers, confined to a closed conditioning system. In the said method, the cork stoppers are separately or jointly led to an incubation chamber (1); air or nitrogen is injected into the incubation chamber (1), dragging the gas enriched in the cork's volatile compounds and carrying it to the concentration system which is provided with a trap (4), the latter being meanwhile heated for desorption of the volatile compounds; these are led by the dragging gas towards a detection system (6) which registers a signal related to the presence of the analyte, this signal being used for purposes of classification of the cork stopper or groups of cork stoppers; finally, a software receives the signal and compares it with the established minimum threshold, taking a decision of approval or rejection. An installation for the operation of the said method is also described.