摘要:
Systems (100) and methods (400) for facilitating communication with Foundation Fieldbus linking devices (115) are described. A plurality of Foundation Fieldbus linking devices (115) may be identified (410) by a gateway device (105) that includes one or more computers. A single virtual address representative of the plurality of linking devices (115) may be determined (425) by the gateway device (105). Communications between the plurality of linking devices (115) and an external system (125) may the be facilitated (440) by the gateway device )105), and the virtual address may be utilized to represent the plurality of linking devices (115) to the external system (125).
摘要:
Systems (100) and methods (800) for identifying Foundation Fieldbus linking devices (115) are described. A Foundation Fieldbus linking device (115) may be identified (810) by a gateway device (105) that includes one or more computers. An operational status for the identified linking device (115) may be determined (820) by the gateway device (105). A virtual address representative of the identified linking device (115) may be determined (425) by the gateway device (105). A message associated with operation of the identified linking device (115) may be provided (840) by the gateway device (105) to an external system (125), and the virtual address may be utilized to represent the linking device (115).
摘要:
Systems (100) and methods (400) for facilitating communication with Foundation Fieldbus linking devices (115) are described. A first Foundation Fieldbus linking device (115a) associated with a first Ethernet network (135a) and a second Foundation Fieldbus linking device (115b) associated with a second Ethernet network (135b) may be identified (410) by a gateway device (105) that includes one or more computers. At least one virtual address representative of the first linking device (115a) and the second linking device (115b) may be determined (425) by the gateway device (105). Communications between the first and second linking devices (115a,b) and an external system (125) may be facilitated (440) by the gateway device (105), and the at least one virtual address may be utilized to represent the linking devices (115a,b) to the external system (125).
摘要:
A copolycarbonate-polyester, comprising units of formula (I) wherein at least 60 percent of the total number of R1 groups are divalent aromatic organic radicals and the balance thereof are divalent aliphatic or alicyclic radicals; units of formula (II) wherein T is a C7-20 divalent alkyl aromatic radical or a C6-20 divalent aromatic radical, and D is a divalent C6-20 aromatic radical; and units of the formula (III) wherein R2 and R3 are each independently a halogen or a C1-6 alkyl group, R4 is a methyl or phenyl group, each c is independently O to 4, and T is as described above.
摘要:
A high intensity discharge lamp comprises an arc tube (1) terminated by at least one sealed portion (3) , enclosing an electrode assembly. The electrode assembly comprises an electrode (14) , a lead-in wire (5) and an electrically conducting foil (6) . At least one of the electrodes is provided with surface irregularities (8) in a region between the foil and the arc chamber in order to control shape and size of cracks (17) in a seal wall surrounding the electrodes. In the method, an electrode (14) of predetermined geometry and structure is provided with at least one artificial surface irregularity (8) . Subsequently, an electrode assembly comprising said electrode, a seal foil (6) and a lead-in wire (5) is introduced into an arc chamber (2) and the is sealed therein, so that the irregularities (8) of the electrode are formed in a region between the foil and the arc chamber. The electrodes may be provided with artificial surface irregularities (8) also after preparing the electrode assembly.
摘要:
A method of quantitatively measuring the concentration of a chemical species in a sample solution with a sensor film. A hydrogel sensor film is prepared having a chemical composition comprising an indicator that changes its optical property in the ultra-violet, visible or near-infrared spectral range upon being exposed to the chemical species in the sample solution. The film is exposed to a fixed amount of the sample solution. The concentration of the chemical species in the sample solution is quantified using the average absorbance measured from the sensor film.
摘要:
A flame retardant thermoplastic composition comprising in combination a polycarbonate component; an impact modifier composition, the components of the impact modifier composition comprising a) a bulk polymerized ABS, and b) an impact modifier different from the ABS; and a flame retardant. The compositions have an improved balance of physical properties such as impact strength and flow, while at the same time maintaining their good flame performance.
摘要:
A radiation source (10) with an ionizable mercury-free composition (12). The ionizable composition comprising at least zinc or at least one zinc compound or both.
摘要:
A thermoplastic composition contains about 20 to about 90 wt.% of a polycarbonate resin; up to about 35 wt.% of an impact modifier; about 0.5 to about 30 wt.% of a polysiloxane-polycarbonate copolymer; and about 0.5 to about 20 wt.% of a phosphorus-containing flame retardant, each based on the total combined weight of the thermoplastic composition, exclusive of any filler. An article of manufacture having a wall having a thickness of 3mm or less may be made using the composition, e.g., by molding, extruding, or shaping the above-described composition into an article. Alternatively, an article may be made by ultrasonically welding a first part comprising the foregoing composition a second part.
摘要:
A method comprising treating an article with steam, wherein the article comprises a composition comprising an amount of a polysiloxane-polycarbonate copolymer effective to provide thermal and hydrolytic stability to the article for at least 15 cycles, wherein each cycle comprises 20 minutes of contact with steam at 100 °C, at atmospheric pressure. The articles are of utility in a wide variety of applications such as food service and medical applications.