摘要:
A thermally stable ink for use in an ink jet printing apparatus containing a printhead (10), a fill port (12), a membrane cavity (14), a pumping chamber (16), a piezoelectric transducer (18) and an orifice (20), through which the thermally stable ink is ejected wherein the ink contains an ester amide resin, a tackifying resin, and a colorant.
摘要:
A method of manufacturing a tunnel (10) or shaft lining or pipeline of segments (12), wherein each segment (12) comprises a concrete body (11) having an extrados (13) surface, an intrados (14) surface and first and second ends (15, 16) and first and second sides (17, 18), the ends (15, 16) and sides (17, 18) providing edge portions, the segments (12) being adapted to be connected to further similar segments (12) with edge portions adjacent edge portions of adjacent segments (12), the method being characterised in that the method includes enveloping the ends (15, 16) or sides (17, 18) of at least a pair of segments (12) in a reinforcing material as the concrete is cast, and once the concrete has cured, connecting the segments (12) together with one of each of their enveloped ends (15, 16) or sides (17, 18) adjacent, and sealing between the enveloped ends or sides.
摘要:
There is provided a method of regulating a eukaryotically active gene, comprising transforming a cell with a transformation cassette expressing a modulator gene product regulating the eukaryotically gene or its product and a further gene product regulating said modulator gene or its product, the promoters of two of said gene, modulator gene and further genes being selected from inducible promoters and developmental promoters for the same or complementary tissues. The lethal gene expressing barnase, a ribonuclease of B. amiloliquefaciens, is placed under the control of a tissue specific promoter, such as those derived from PrMADS1, 2 or 3 of Pinus radiata or EGM1, 2 or 3 of Eucalyptus grandis. The same tissue specific promoter is used to express Laclq gene, a repressor for barnase (barstar) being promoted by a modified 35s RNA CaMV promoter including the lac operon. The cassette is used to transform plant cells for regeneration into plants expressing the barnase in the target tissues with improved specificity and reduced promoter leakage.
摘要:
An oxygen generating device (11, 211) to which a gas mixture containing oxygen is fed, and which is operable to separate the gas mixture into oxygen rich and oxygen depleted gas components, the device (11, 211) comprising a negative temperature coefficient material (36a, 36b, 36c; 236) which is active at an elevated temperature above a minimum operating temperature, to separate the gas mixture into oxygen rich and oxygen depleted gas components, there being means (15, 28) to pass an electrical current through the device (11, 211) to produce a heating effect within the device to heat the gas mixture at least towards the minimum operating temperature wherein the device comprises a plurality of active sections (A, B, C) through each of which the gas mixture passes in turn, and the electrical current supply is connected to each of the sections (A, B, C) so that the sections electrically are connected in series.
摘要:
An open loop air cycle system (10) for delivering a flow of cooling air to an enclosure (11) is described. The system (10) comprises means for delivering a variable flow of cooled air for mixing with recirculated enclosure air in an enclosure air recirculation loop. The system (10) further comprises means for supplying a variable flow of air at ambient temperature and pressure to the enclosure air recirculation loop and means (40) for controlling the flow of cooled air for mixing with the recirculated enclosure air and for controlling the flow of ambient air to the enclosure air recirculation loop such that in operation, substantially constant volume flow of cooling air is delivered to the enclosure (11).
摘要:
Un moteur à pistons en gradins comprend des premier (10), second (11) et troisième (12) cylindres en gradins, chaque cylindre (10, 11, 12) comportant une partie (10p, 11p, 12p) de pompage à grand diamètre, ainsi qu'une partie (10w, 11w, 12w) de travail à faible diamètre, ainsi qu'un piston (13, 14, 15) coulissant dans le cylindre, chaque piston (13, 14, 15) étant couplé à un arbre de sortie (16) dudit moteur. Ledit moteur comprend également un moyen (20) de passage de transfert, destiné à transférer la charge précomprimée de la partie (10p) de pompage à grand diamètre dudit premier cylindre (10), à la partie (11w) de travail de faible diamètre dudit second cylindre (11), un second moyen (21) de passage de transfert, destiné à transférer la charge précomprimée de ladite partie (11p) de pompage à grand diamètre dudit second cylindre (11), à ladite partie (12w) de travail à faible diamètre dudit troisième cylindre (12). Ledit moteur comprend en outre un troisième moyen (22) de passage de transfert, destiné à transférer la charge précomprimée de ladite partie (12p) de pompage à grand diamètre dudit troisième cylindre (12), à ladite partie (10w) de travail de faible diamètre dudit premier cylindre (10).
摘要:
A molecular sieve type gas separation apparatus (10) for separating product gas from a gas supply (14), the apparatus (10) comprising at least one sieve bed (11-13) which during an adsorption charge phase of a cycle, adsorbs non product gas in the gas supply (14), and in a desorption regeneration phase of the cycle desorbs the previously adsorbed non product gas, the apparatus further comprising outlet means (18) to which product gas is delivered during the adsorption charge phase, and outlet means (31) for non product gas during the desorption regeneration phase, sensor means (36) responsive to the concentration of a constituent in the product gas, and control means (20) to switch the apparatus (10) between the adsorption charge and desorption regeneration phases, characterised in that the control means (20) is adapted to adjust the duration of adsorption charge phase relative to the duration of the desorption regeneration phase in each cycle.
摘要:
An ostomy coupling comprises two rings which can be interengaged concentrically. The inner ring (1a) has a peripheral flange (2) at one end for attachment to an abdominal pad (3a) and a radially outwardly directed peripheral bead (6) at its other end; whilst the outer ring (1b) has a radially outwardly directed flange (7) for attachment to an ostomy pouch (8a), and a lip (11) which engages behind the peripheral bead (6) on the inner ring in order to secure the two rings of the coupling together. The flange (7) on the outer coupling ring includes a sitffening member (10) which is disposed so as to restrain the outer coupling ring from expanding away from the inner coupling ring when the two parts of the coupling are interengaged in use.
摘要:
An apparatus (10) for moulding a staircase comprising a plurality of modules (11-13), each module comprising tread (14) and riser (15) mould parts secured together at, and extending one to each side from, a connection point (18) with a fixed angle of between 0° and 15° between the tread (14) and riser (15), the length of each tread and riser from the connection point (18) being adjustable, and each module (11-13), comprising an individual liner (45) which extends over the tread (14) and riser (15) to cover the tread (14) and riser (15) and there being means (46) located in a space between the tread (14) and riser (15) to maintain the liner (45) taut, the apparatus (10) further comprising a support structure (35) on which the modules (11-13) are mounted generally in a line, there being means to enable the modules (11-13) to be moved along the support structure (35) and to vary the spacing between the modules (11-13) of the mould (10).
摘要:
A method of calibrating a ribbon winding mechanism (10) of a printing apparatus which is adapted to perform a printing operation in which at a printing station (20) a print head (11) is moved relative to a first length of the ribbon (13) to tranfer print medium from the first length of the ribbon (13) onto a substrate and the ribbon (13) is subsequently advanced a predetermined amount to present a second length of ribbon (13) at the printing station (20) for use in a further printing operation, the winding mechanism (10) comprising a supply spool (11) and a take-up spool (14) and there being a ribbon path between the supply (11) and take-up spools (14) through the printing station (20), and a motive means (M) to cause the ribbon (13) to be moved along the ribbon feed path and wound onto the take-up spool (14), and a sensing means (22) to sense movement of the ribbon (13) as the take-up spool (14) is rotated and to provide a signal to a control means (25) in response, the method being characterised in that prior to performing the printing operation, the take-up spool (14) is rotated a predetermined amount whilst the sensing means (22) senses the resultant ribbon (13) movement along the ribbon feed path and the control means (25) determines from the signal received from the sensing means (22) the amount to rotate the take-up spool (14) in the subsequent printing operation to advance the ribbon (13) the predetermined amount.