摘要:
A clamp assembly (16) for stabilizing one or more adjacent regions (12A) (12B) and for selecting a bone screw (18) to be inserted into the one or more adjacent regions (12A) (12B) includes a first clamp side (224), a second clamp side (226) and a connector (228) that pivotally secures the first clamp side (224) and the second clamp side (226) together. The first clamp side (224) includes a first locking component (236) having a first plurality of first teeth (236B) and the second clamp side (226) includes a second locking component (244) having a second plurality of second teeth (244B). The plurality of first teeth (236B) selectively engage the plurality of second teeth (244B) when the clamp assembly (16) is positioned about the bone regions (12A) (12B) so that the clamp assembly (14) is in a locked position with the first clamp side (224) and the second clamp side (226) engaging substantially opposite sides of the adjacent regions (12A) (12B). Additionally, the clamp assembly (16) includes a screw guide (20) that is secured to at least one of the clamp sides (224) (226). The screw guide (20) provides information for selecting the appropriate bone screw (18) based on the relative position of the clamp sides (224) (226).
摘要:
An inorganic polymer which comprises one or more organic functional groups and which has the following empirical formula: Rm[M2O]x[Al2O3]y[SiO2]zXqPH2O, in which: R represents an organic functional group; M is an alkali metal; X is selected from chlorine and fluorine; m is >0; q is ≧0; x is from 1 to 1.6; y is from 1.0; x/y is from 1.0 to 1.6; z is from 3 to 65; z/y is ≧1.0; and P is from 3 to 5.
摘要:
A high energy photon source for generating EUV radiation comprises a nozzle emitting a supersonic stream of source material, a laser or electrical/magnetic pre-ionization mechanism and a laser or electrical/magnetic excitation mechanism and a skimmer plate between them providing a collimated high density beam of source material for excitation.
摘要:
A novel lottery ticket as well as a lottery game and method of playing that game using the lottery ticket are disclosed. The lottery ticket can be used to participate in at least one of a plurality of drawing events that occur over a period of time. The lottery ticket comprises a number of panels that conceal a number of playing game pieces and/or free spaces. The playing game pieces and/or free spaces are concealed by a removable coating material. Participants can choose which drawing event to play, manifesting their intent to play a particular drawing event by revealing the playing game pieces associated with the panels that are designated specifically for that particular drawing event. The game is played further by selecting a combination of winning game pieces and determining whether any of each participant's playing game pieces match some or all of the winning game pieces. A ticket becomes a winning ticket if some or all of the matching playing game pieces on the lottery ticket adjoin so as to produce a winning line of a horizontal, vertical or diagonal “three-in-a-row” as with tic-tac-toe. More than one winning line are possible on each lottery ticket, producing multiple ways of winning on a single lottery ticket.
摘要:
A composition comprising a matrix which, on pyrolysis, forms spinel, and an inorganic particulate filler having a hollow or a lamellar structure, wherein the matrix comprises a liquid pre-ceramic binder and at least one other component selected from a metal powder, a metal oxide powder and mixtures thereof, is provided. A heat resistant product which is obtainable by pyrolysing the composition is also provided. The resulting heat resistant product is capable of withstanding temperatures of greater than 1600° C., for instance up to and greater than 1850° C., and may be used in the form of a thermal barrier coating applied, or otherwise attached, to a surface of a substrate, which may, for example, form part of an aircraft, power-generating equipment, a furnace lining, a heat-exchanger, or a reactor.
摘要:
A process for providing a protective coating on a substrate comprises (1) applying to the substrate a coating composition comprising a homogenous mixture comprising an inorganic sol and polymerisable organic species, the inorganic sol being obtainable by hydrolysing hydrolysable inorganic monomer precursors to form inorganic monomers; (2) polymerising the polymerisable organic species; and (3) polymerising the inorganic monomers, wherein polymerisation of the organic monomers is initiated prior to completion of polymerisation of the inorganic monomers, to form a solid coating on the substrate. The resulting coating comprises interpenetrating inorganic and organic polymer networks, and may be formulated to be transparent. It is useful in the protection of a wide variety of substrates, and in particular for providing scratch/abrasion resistance to low melting point plastics materials such as polycarbonates and polyacrylates.
摘要:
A composition containing at least one isocyanate terminated polyester obtainable by enzyme catalyzed polyesterification of one or more monomers selected from dicarboxylic acids, diols or polyols and/or hydroxyacids in the presence or absence of an inert organic solvent and a diisocyanate.
摘要:
A dust-resistant mirrored surface reflector for use with a source of artificial light is provided. The reflector comprises (i) a planar transparent substrate (such as a sheet of glass or plastic), (ii) a reflective metal layer coated onto one side of the substrate, and (iii) a transparent, conductive material layer (such as indium oxide, tin oxide, zinc oxide or indium-tin oxide) coated onto the other side of the substrate. The conductive material layer has an electrical resistance less than about 10.sup.12 ohms per square.