Abstract:
An online qualification management system that can be used to perform qualification management, such as candidate assessment for recruiting or promoting purposes, job description simulations, and learning management. A computing entity can execute a software application to implement a qualification management project that interacts online with a candidate to perform an assessment procedure on the candidate. The qualification management project includes a set of modules intended to interact individually with the candidate being assessed. One of the modules of the set may be a test module for testing the candidate for one or more skills. Another one of the modules of the set may be a virtual simulation module and implement a virtual simulation, the virtual simulation having a scenario defined by a chain of events and including a plurality of graphical scenes. The virtual simulation can also involve one or more avatars and/or interactive graphical objects. An author can use an authoring tool to create the qualification management project.
Abstract:
The invention relates to the selection of a natural calcium carbonate crushed to a high degree of fineness, possibly treated with one or more fatty acids or one or more of their salts or mixtures thereof, and its use as a rheology regulator for polymeric compositions.The specific surface area is 14 to 30 m2/g measured according to the BET method to ISO 4652, and the oil absorption is greater than 16 measured according to ISO 787-V (Rub-out method).The conditions of mixing of the constituents and manufacture are improved, as well as the properties of the final product.
Abstract:
The invention relates to the use of isotactic polypropylenes of very great fluidity for the preparation of concentrates of fillers which can be used in thermoplastics of the olefinic type such as polypropylene, polyethylene and as a general rule: the polymers used alone or in a mixture, based on ethylenic monomers containing 2 to 6 atoms of carbon polymerized alone or in a mixture. The invention also relates to the concentrates of fillers or master batches prepared from isotactic polypropylenes of very great fluidity. The invention finally relates to the loaded thermoplastic materials obtained with the addition of selected polypropylenes according to the invention, and the industrial products manufactured from, or containing, such thermoplastic materials.
Abstract:
The present invention concerns copolymers containing carboxyl groups simultaneously with a function of a binding agent and a function of a rheology modifier or viscosity reducer or grinding aid agent for aqueous suspensions of pigments and/or mineral fillers, used to obtain grains of pigments and/or mineral fillers, reconstituted and formed from elementary particles with a specific BET surface ranging from 0.5 m2/g to 200 m2/g, grains that can easily be re-dispersed in thermoplastic resins. The invention also concerns the agglomerate minerals obtained and their uses.
Abstract:
The invention relates to the technological sector of mineral fillers used in the sector which manufactures polyurethane foams and in particular fillers of the carbonate, hydroxide, silicate, sulphate type and similar mineral fillers. The invention relates in particular to a method of treating mineral fillers of a specific grain size with the aid of treatment agents of the organic phosphate type, incorporating a de-agglomeration step, and optionally a selection step, with a view to improving the techniques used to manufacture polyurethane foams either by foaming without an auxiliary blowing agent or with a blowing agent such as CO2, and composite polyurethane, whilst reducing the time needed to mix this treated filler treated with the polyol and other reagents. Numerous applications for block foams or moulded foams, for mattresses and similar, the automotive industry, various industrial components, etc . . .
Abstract:
A dispersing agent for use in a thermosetting composition, a thermosetting composition containing said dispersing agent, and application thereof to thermosetting composition having no yield point. The dispersing agent acting on mineral fillers and used in filled acrylic or polyester resin-based thermosetting compositions belongs to the family of organophosphates corresponding to the general formula: ##STR1## where: A is a branched or unbranched polyaryl group,x and y are whole numbers between 0 and 100 such that x+y is a whole number greater than 40 but not greater than 100, ##STR2## B and E are independently a branched or unbranched polyaryl group, or an alkyl, aryl, arylalkyl, alkylaryl, alkanoyl, or amine radical, and in B and E, and R.sub.1 and R.sub.2 may be identical or different, x1, y1, x2 and y2 are whole numbers, and the sums x1+y1 and x2+y2 are not greater than 100.
Abstract:
Process of manufacturing a charge transfer device wherein lower electrodes have enlarged portions and narrowed portions which mesh with the mating portions of any adjacent lower electrode, upper electrodes cover the intervals defined between adjacent lower electrodes and at least part of said enlargened portions thereof, these intervals which are not covered by the upper electrodes are subjected to an impurity diffusion.
Abstract:
The invention provides a method for forming a semiconductor device having several gate levels, which, in the case of forming a device with two gate levels, comprises the following steps:1. on a semiconductor substrate are deposited a dielectric layer, then a layer of material in which the gates of the first level are to be formed and a dielectric layer;2. the gates of the first level are formed by etching the two upper layers;3. the sides of the gates of the first level are isolated;4. a second layer is deposited of material in which the gates of the second level are to be formed;5. in this second layer an opening is formed giving access to the dielectric layer covering the top of the gates of the first level;6. by plasma etching or by chemical etching the zones of said second layer which overhang the gates of the first layer are removed by etching them simultaneously on their internal and external faces.
Abstract:
The process of the invention consists in depositing a doped polycrystalline silicon layer on a silica dielectric which isolates it from the substrate. By photolithographic etching zones are defined which are intended to undergo ionic implantation for the buried channel, the zones to be protected being masked by the remaining silicon.A double silica-nitride layer is formed after the substrate has been bared in the implanted regions;Photolithographic etching of the double silica-nitride layer gives access to the first silicon level of a second doped silicon layer.Photoetching of the whole of the two silicons allows different structures to be formed in which for example the transition zone between the two dielectrics is situated under the same gate or else in which for example the transition zone is self aligned with a gate.
Abstract:
The invention relates to the fabrication of electronic circuits on a thinned semiconductor substrate. To produce a connection pad on the back side of the thinned substrate, the procedure is as follows: an integrated circuit is produced on an unthinned substrate, in which a portion of a polycrystalline silicon layer (18) dedicated for the connection of the pad is provided. The circuit is transferred onto a transfer substrate (30) and then its back side is thinned. A via is opened in the thinned semiconductor layer (12) in order to gain access to the polycrystalline silicon; aluminum (80) is deposited and this layer is etched so as to define a pad which is in contact with the internal interconnects of the integrated circuit by way of the polycrystalline silicon.