摘要:
The invention provides a heat transfer composition comprising (i) a first component selected from trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), cis-1,3,3,3-tetrafluoropropene (R-1234ze(Z)) and mixtures thereof; (ii) carbon dioxide (R-744); and (iii) a third component selected from 1,1-difluoroethane (R-152a), fluoroethane (R-161), and mixtures thereof.
摘要:
The invention relates to a process for preparing CF 3 CH=CHF and CF 3 CF=CH 2 , wherein CF 3 CF=CH 2 is prepared by dehydrohalogenating a compound of formula CF 3 CFYCH 3 or CF 3 FHCYH 2 , wherein Y is F, Cl, Br, or I, in the presence of a base.
摘要:
The invention relates to a process for removing one or more undesired (hydro)halocarbon compounds containing a =CHF or a =CF 2 moiety from a desired (hydro)fluoroalkene which does not contain a =CF 2 moiety, the process comprising contacting a composition comprising the desired (hydro)fluoroalkene and one or more undesired (hydro)halocarbon compounds with an aluminium-containing adsorbent, activated carbon, or a mixture thereof.
摘要:
A peritoneal dialysis machine (100) comprising: a housing including at least one pump actuator, a rotational to linear motion converter operable with a shaft leading to a pump head, at least one valve actuator and an assembly forming a wall of the housing for interfacing with a disposable cassette, the assembly including: a plate (30) that faces a flexible sheet of the cassette when loaded into the machine; at least one pump aperture defined by the plate; the at least one pump head moveable out of and retractable into the at least one pump aperture translated via the rotational to linear motion converter to operate a corresponding pumping portion of the flexible sheet of the cassette; at least one valve aperture defined by the plate; at least one valve apparatus moveable out of and retractable into the at least one valve aperture to operate a valve portion of the flexible sheet of the cassette; at least one sensor aperture defined by the plate; and at least one sensor (74) located in the at least one sensor aperture, the at least one sensor operable with a sensor portion of the flexible sheet of the cassette.
摘要:
The invention provides a process for preparing 3,3,3-trifluoropropene (1243zf), the process comprising contacting a compound of formula CX 3 CH 2 CH 2 X or CX 3 CH=CH 2 , with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst, wherein each X independently is F, Cl, Br or I, provided that in the compound of formula CX 3 CH=CH 2 , at least one X is not F.
摘要:
The invention provides a hemodialysis system comprising a dialyzer, a blood pump, a blood cassette (150) operatively connected to the dialyzer and the blood pump; a dialysate heater; first and second peristaltic dialysate pump actuators; and a dialysate cassette (10e) separate from the blood cassette (150), the dialysate cassette (10e) including a tubing organizer (168) configured to hold a drain line (24), a to-dialyzer line (152a) and a from-dialyzer line (152b), the dialysate cassette (10e) further including a first pumping tube (148), a second pumping tube (154) and an inline fluid heating pathway (42b), the dialysate cassette (10e) when mounted for operation orienting (i) the first pumping tube (148) for operation with the first peristaltic dialysate pump actuator, (ii) the second pumping tube (154) for operation with the second peristaltic dialysate pump actuator and (iii) the fluid heating pathway (42b) for operation with the dialysate heater.
摘要:
The invention relates to a system for stabilizing a bone fracture and methods for applying the system. The system includes a device with two anchorable members with an intervening connector and a passageway through the device. The anchorable members have a constrained non-anchoring configuration and a released anchoring configuration. The anchoring configuration includes a radially-expanded structure such as a plurality of struts. After implantation across a fracture site, the anchorable members are released from their linearly constrained configuration, and structural features radially self-expand, anchoring the device across the fracture. A flowable bone-filling material may be conveyed into the passageway of the device after implantation. The composition fills the space within the expanded structures of the anchorable members and flows into space surround the device, stabilizing it further in the implantation site.