Abstract: A hardenable multi-part acrylic composition having at least two parts that react upon mixing to form a cement, such as bone cement, which hardens to a solid is described that includes storage stable liquid first and second parts, and optionally, further liquid parts. The parts react upon mixing to form a cement that hardens to a solid. The composition includes an acrylic monomer component and an initiator component in an amount effective to polymerize the acrylic monomer component when mixed and/or activated with it. The liquid first part comprises an aqueous dispersion of acrylic polymer particles and acrylic polymer beads. The polymer beads are at an equilibrium water content with the aqueous phase of the dispersion that generally has a viscosity between 10 and 10,000 centipoise. A twin barreled syringe, caulking gun or other cement mixing and delivery device and a method of producing the composition are also described.

Abstract: A hardenable multi-part acrylic composition having at least two parts that react upon mixing to form a cement, such as bone cement, which hardens to a solid is described that includes storage stable liquid first and second parts, and optionally, further liquid parts. The parts react upon mixing to form a cement that hardens to a solid. The composition includes an acrylic monomer component and an initiator component in an amount effective to polymerize the acrylic monomer component when mixed and/or activated with it. The liquid first part comprises an aqueous dispersion of acrylic polymer particles and acrylic polymer beads. The polymer beads are at an equilibrium water content with the aqueous phase of the dispersion that generally has a viscosity between 10 and 10,000 centipoise. A twin barrelled syringe, caulking gun or other cement mixing and delivery device and a method of producing the composition are also described.

Abstract: Variable compression ratio (VCR) in reciprocating internal combustion engine must be achieved in very short time or in less than 10 degrees from TDC. To accomplish this a closed-circuit system of hydraulic cylinder pump-follower driven by End-Cam, centered on the crankshaft journal, and a hydraulic jack linked to a mechanical scissor jack. This arrangement speeds up the VCR action while reduces pressure load on the VCR mechanism and allows for higher compression ratio. The rotation of the End-Cam with respect to the hydraulic cylinder pump engages the plunger-follower with the Cam rise/lift at TDC. Then starts pumping oil to the hydraulic jack that is linked to the scissor jack and lift/push up the engine piston. Addition of an actuator to the End-Cam advances or delays VCR action. This hydraulic-mechanical system is compact is size with options for various mechanical linkages and customizable in different ways that two configurations are presented.

Abstract: A hardenable multi-part acrylic composition comprises a solid first part and a storage stable liquid second part and optionally, further solid and/or liquid parts, the parts being operable to form a cement which hardens to a solid mass upon mixing. The composition further comprises an acrylic monomer component in the second part, an initiator component, a first sub-population of acrylic polymer particles in the first and/or further parts, a second sub-population of acrylic polymer particles in the first and/or further parts and optionally, one or more further sub-population(s) of acrylic polymer particles, and a radiopacifying filler. The initiator component amount is effective to polymerize the acrylic monomer component upon mixing. At least some of the radiopacifying filler is encapsulated within and/or adsorbed on the first sub-population of acrylic polymer particles and the second sub-population of acrylic polymer particles has a lower average particle size than the first.

Abstract: The invention relates to a hardenable multi-part liquid acrylic composition. The composition comprises a storage stable liquid first part, a storage stable liquid second part and optionally, a third or further liquid parts. The parts are operable to form a cement which hardens to a solid upon mixing of the parts together. The composition comprises an acrylic monomer component, an initiator component, acrylic polymer particles and a radiopacifying filler. The initiator component is present in an amount of effective to polymerize the acrylic monomer component upon being mixed and/or activated therewith. At least some of the radiopacifying filler is encapsulated within and/or adsorbed on the acrylic polymer particles in a liquid part.

Abstract: A hardenable two part acrylic composition is described for the treatment of human or animal bone is described. The composition comprises a storage stable liquid first part and a storage stable liquid second part which react with each other upon mixing to form a cement which hardens. The composition further comprises an acrylic monomer component and an initiator component in an amount effective to polymerize the monomer component. The monomer component and the initiator component are generally located in separate parts of the two part composition so that the monomer component is storage stable. The liquid first part comprises emulsion polymerized acrylic polymer particles in a liquid carrier. A method of producing a hardenable two part acrylic composition is also described. The composition is particularly useful in a syringe or caulking gun having at least two barrels.

Abstract: Systems and methods for measuring and managing ambiguity among a plurality of configuration items residing in a configuration management database include determining for at least a first configuration item, at least a second configuration item such that a first set of attributes associated with the first configuration item and a second set of attributes associated with the second configuration item have at least one attribute with an identical value. As an indicator for the ambiguity, an ambiguity index for the first configuration item may be measured. One of the first configuration item and the second configuration item may be identified as an ambiguous configuration item. Upon identification, an operational state of the ambiguous configuration item or a set of one or more attributes associated with the ambiguous configuration item may be modified. The ambiguity for configuration item transactions may likewise be measured and managed to locate and resolve transaction ambiguity.

Abstract: A hardenable multi-part acrylic composition comprises a solid first part and a storage stable liquid second part and optionally, further solid and/or liquid parts, the parts being operable to form a cement which hardens to a solid mass upon mixing. The composition further comprises an acrylic monomer component in the second part, an initiator component, a first sub-population of acrylic polymer particles in the first and/or further parts, a second sub-population of acrylic polymer particles in the first and/or further parts and optionally, one or more further sub-population(s) of acrylic polymer particles, and a radiopacifying filler. The initiator component amount is effective to polymerize the acrylic monomer component upon mixing. At least some of the radiopacifying filler is encapsulated within and/or adsorbed on the first sub-population of acrylic polymer particles and the second sub-population of acrylic polymer particles has a lower average particle size than the first.

Abstract: The invention relates to a hardenable multi-part liquid acrylic composition. The composition comprises a storage stable liquid first part, a storage stable liquid second part and optionally, a third or further liquid parts. The parts are operable to form a cement which hardens to a solid upon mixing of the parts together. The composition comprises an acrylic monomer component, an initiator component,acrylic polymer particles and a radiopacifying filler. The initiator component is present in an amount of effective topolymerize the acrylic monomer component upon being mixed and/or activated therewith. At least some of the radiopacifying filler is encapsulated within and/or adsorbed on the acrylic polymer particles in a liquid part.

Abstract: A hardenable two part acrylic composition is described for the treatment of human or animal bone is described. The composition comprises a storage stable liquid first part and a storage stable liquid second part which react with each other upon mixing to form a cement which hardens. The composition further comprises an acrylic monomer component and an initiator component in an amount effective to polymerize the monomer component. The monomer component and the initiator component are generally located in separate parts of the two part composition so that the monomer component is storage stable. The liquid first part comprises emulsion polymerized acrylic polymer particles in a liquid carrier. A method of producing a hardenable two part acrylic composition is also described. The composition is particularly useful in a syringe or caulking gun having at least two barrels.

Abstract: A hardenable two part acrylic composition, a polymer component of the two part hardenable composition and a method of producing a polymer component of the two part composition are disclosed. The hardenable two part acrylic composition includes an acrylic polymer composition first part and an acrylic monomer composition second part. The acrylic polymer composition first part includes a first type of acrylic polymer particles wherein each first type of acrylic polymer particle is formed of a network of coalesced emulsion polymerized acrylic microparticles or is macroporous. The acrylic polymer composition may include emulsion polymerised acrylic polymer particles of particle size between 10 and 2000 nm and includes the use of acrylic polymer particles formed of a network of coalesced emulsion polymerized acrylic microparticles as a dough time reduction agent in a hardenable two part acrylic composition.

Abstract: Embodiments herein include systems, methods, software, and data structures to generate and render visualizations of configuration items (CIs) represented in a Configuration Management Database (CMDB). One embodiment includes receiving a request for a CI graph from a client including a focus CI identifier represented in a CMDB. The focus CI may be used to retrieve data of related CIs, the data including CI identifiers. A process is then executed for each retrieved CI identifier to retrieve CI data as a function of the received CI identifier and to build a node XML and an edge XML representation of relations between the CIs. This method also includes aggregating the node and edge XML representations into a single XML document and then translating the document into a markup language document capable of being rendered in a graphical user interface. The markup language document is then transmitted to the requestor.

Abstract: Embodiments herein include systems, methods, software, and data structures to generate and render visualizations of configuration items (CIs) represented in a Configuration Management Database (CMDB). One embodiment includes receiving a request for a CI graph from a client including a focus CI identifier represented in a CMDB. The focus CI may be used to retrieve data of related CIs, the data including CI identifiers. A process is then executed for each retrieved CI identifier to retrieve CI data as a function of the received CI identifier and to build a node XML and an edge XML representation of relations between the CIs. This method also includes aggregating the node and edge XML representations into a single XML document and then translating the document into a markup language document capable of being rendered in a graphical user interface. The markup language document is then transmitted to the requestor.

Abstract: Embodiments herein include systems, methods, software, and data structures to generate and render visualizations of configuration items (CIs) represented in a Configuration Management Database (CMDB). One embodiment includes receiving a request for a CI graph from a client including a focus CI identifier represented in a CMDB. The focus CI may be used to retrieve data of related CIs, the data including CI identifiers. A process is then executed for each retrieved CI identifier to retrieve CI data as a function of the received CI identifier and to build a node XML and an edge XML representation of relations between the CIs. This method also includes aggregating the node and edge XML representations into a single XML document and then translating the document into a markup language document capable of being rendered in a graphical user interface. The markup language document is then transmitted to the requestor.

Abstract: Systems and methods for measuring and managing ambiguity among a plurality of configuration items residing in a configuration management database include determining for at least a first configuration item, at least a second configuration item such that a first set of attributes associated with the first configuration item and a second set of attributes associated with the second configuration item have at least one attribute with an identical value. As an indicator for the ambiguity, an ambiguity index for the first configuration item may be measured. One of the first configuration item and the second configuration item may be identified as an ambiguous configuration item. Upon identification, an operational state of the ambiguous configuration item or a set of one or more attributes associated with the ambiguous configuration item may be modified. The ambiguity for configuration item transactions may likewise be measured and managed to locate and resolve transaction ambiguity.

Abstract: A hardenable two part acrylic composition, a polymer component of the two part hardenable composition and a method of producing a polymer component of the two part composition are disclosed. The hardenable two part acrylic composition includes an acrylic polymer composition first part and an acrylic monomer composition second part. The acrylic polymer composition first part includes a first type of acrylic polymer particles wherein each first type of acrylic polymer particle is formed of a network of coalesced emulsion polymerized acrylic microparticles or is microporous. The acrylic polymer composition may include emulsion polymerised acrylic polymer particles of particle size between 10 and 2000 nm and includes the use of acrylic polymer particles formed of a network of coalesced emulsion polymerized acrylic microparticles as a dough time reduction agent in a hardenable two part acrylic composition.

Abstract: Embodiments herein include systems, methods, software, and data structures to generate and render visualizations of configuration items (CIs) represented in a Configuration Management Database (CMDB). One embodiment includes receiving a request for a CI graph from a client including a focus CI identifier represented in a CMDB. The focus CI may be used to retrieve data of related CIs, the data including CI identifiers. A process is then executed for each retrieved CI identifier to retrieve CI data as a function of the received CI identifier and to build a node XML and an edge XML representation of relations between the CIs. This method also includes aggregating the node and edge XML representations into a single XML document and then translating the document into a markup language document capable of being rendered in a graphical user interface. The markup language document is then transmitted to the requestor.

Abstract: New C-substituted crown ethers such as ##STR1## are made by reacting a 1,2-diol (chain length m'4) with ClCH.sub.2 --(CH.sub.2 --O--CH.sub.2 --).sub.n+1 CH.sub.2 Cl.These compounds have a stronger affinity for secondary amines than for tertiary amines and therefore may be used to separate mixtures, especially when attached to polysiloxane backbones or substrates via their unsaturated bond.

Abstract: New C-substituted crown ethers such as ##STR1## are made by reacting a 1,2-diol (chain length m+4) with ClCH.sub.2 --(CH.sub.2 --O--CH.sub.2 --).sub.n+1 CH.sub.2 Cl.These compounds have a stronger affinity for secondary amines than for tertiary amines and therefore may be used to separate mixtures, especially when attached to polysiloxane backbones or substrates via their unsaturated bond.