SE REFIERE A UNA MEZCLA DE FRAGUADO HIDRAULICO QUE CONTIENE: A) DEL 10 AL 95 POR CIENTO EN PESO DE UN AGLUTINANTE HIDRAULICO DE CEMENTO; B) DEL 5 AL 75 POR CIENTO EN PESO DE MATERIALES DE RELLENO INORGANICOS Y/O MATERIALES DE RELLENO ORGANICOS; C) DEL 0,5 AL 10 POR CIENTO EN PESO DE UN POLVO POLIMERICO REDISPERSABLE; D) DEL 0,1 AL 1,5 POR CIENTO EN PESO DE UN AGENTE DE RETENCION DE AGUA A BASE DE ...

A modular cord retractor apparatus includes a spring-driven reel and may be used with a range of different electrical appliances incorporating a dual conduct or cord. Fixed and rotating electrical contact pairs provide power to the cord and ar e adapted to reduce noise and wear. Rotating contacts are disposed at axially opposing ends of an axle assembly supporting the reel. Each rotating contact h...

A probe having a flexible, small diameter fiber sheathed in a small diamete r flexible tube comprising the distal tip of the probe. The small diameters of the fiber and tube allow the fiber to be bent in a tighter radius along essentially the entire length of the exposed portion of the fiber, with low tube bending forces during insertion, providing a compact design which eliminates the need for a ...

During the joining of PTFE parts (10), a binder (20) is applied to the joint surfaces of the PTFE parts, e.g. by welding, before the parts are joined. By establishing a bond between PTFE and binder in a separate, initial process, the parameters of this initial process may be determined regardless of other conditions, such as maintaining the dimensions, and the quality of this bond may be controlle...

REFERIDA A UN COMPUESTO DERIVADO DE CICLOPAMINA DE FORMULA (1), DONDE R1 ES H, OR, AMINO, SULFONAMIDO, ENTRE OTROS; R2 ES ALQUENILO, ARILO, NITRILO, HETEROCICLOALQUILO, ENTRE OTROS, O R1 Y R2 JUNTOS FORMAN =O, =S, =N(R), ENTRE OTROS; R3 ES H, ALQUILO, ALQUENILO O ALQUINILO; R4 ES ARILO, CICLOALQUILO, -CO2R5, ENTRE OTROS; R ES H, CICLOALQUILO, ALQUENILO, ARALQUILO, ENTRE OTROS Y R5 ES ALQUENILO, AL...

The invention relates to an external optical modulator comprising a Mach-Zehnder having a signal electrode including at least four sections of unequal length to one another positioned over an alternating domain structure in an electrooptic substrate, and including a center section, or center pair of sections disposed asymmetrically between pairs surrounding sections. The surrounding pairs, compris...

Diamond-bonded constructions include a diamond-bonded body having a thermall y stable region extending a distance below a diamond-bonded body surface. The thermally stable region comprises a matrix phase of bonded-together diamond crystals, and interstitial regions comprising a reaction product. The reaction product is formed by reaction between the diamond crystals and a reactive material. The re...

REFERIDA A UN DERIVADO DE AMINA DE FORMULA (1), DONDE X ES CH O N; R1 ES H, HALOGENO, CIANO, ENTRE OTROS; R2 ES ALQUILO C1-C6, ALQUENILO C2-C6, H, ENTRE OTROS; R3 ES H, HALOGENO, CIANO, ENTRE OTROS; R4 ES ALQUILO C1-C6, ALQUENILO C2-C6, H, HALOGENO, ENTRE OTROS; R5, R6 Y R7 SON ALQUILENO C1-C6, ALQUENILENO C2-C6, CICLOALQUILENO C3-C10, ENTRE OTROS; L1, L2 Y L3 SON UN ENLACE SIMPLE, NR8, CONR8, O, ...

In a method for enhancing the efficiency of separation of bitumen from oil sands ore, lipids, lipid by-products, and lipid derivatives are used as process additiv es for ore-water slurry-based bitumen extraction processes or in situ bitumen recovery processes. The lipids, lipid by--products, and lipid derivatives act as surfactants reducing surface and interfacial tensions, thus promoting breakdow...

Apparatus that allows at least one feature of a patient's face to be observe d while the patient is in a prone position includes a facial cushion, a video camera and a monitor. The facial cushion provides cranial support for a patient in a prone positio n during a medical procedure. The cushion has a frontal aperture that is dimensioned so that the facial feature of a patient wearing the facial cu...

A method of operating a fuel cell apparatus (1), which fuel cell apparatus comprises a fuel cell unit (2), the fuel cells of which enclose an anode (3) and a cathode (4) and an electrolyte (5) there between, a fuel channel (7) for conveying fuel to the anode (3), and a processing apparatus (10) arranged in conjunction with the fuel channel (7) for producing a hydrogenous fuel gas from an alcohol f...

An electrical leakage determining circuit determines the occurrence of electrical leakage at a negative electrode of a fuel cell when a potential difference V between a positive electrode of the fuel cell and ground, which is detected by a potential difference detecting circuit, exceeds a preset potential difference threshold Vth, and determines the occurrence of electrical leakage at the positive...

A tile (1), particularly for providing roofings, constituted by a substantially flat plate (2) that has an approximately square or rectangular plan shape, comprising, proximate to a first side (3) and a second side (4) thereof, which are not contiguous, first means for pivoting between two plates (2) in a laterally adjacent and partially overlapping condition and, proximate to a third side (5) and...

Apparatus for transmitting motive power from a combustion engine (M) or from an electric generator/motor (60) to a driven shaft (5) coupled to a rotating device (50), comprising a main shaft (2), the opposite ends of which are respectively connected to the combustion engine (M) by means of a first engaging/disengaging device (100; 1100) and to the driven shaft (5) by means of a second engaging/dis...