摘要:
Nickel-based low-melting boron-free braze alloy compositions include varying amounts of the alloying elements cobalt, chromium, hafnium, zirconium together with optionally titanium and aluminum. The braze alloys can be used as a stand alone braze alloy or in combination with other filler alloys to create braze joints with desirable joint geometries and properties. The braze alloy compositions can be used to join and repair different superalloy articles such as gas turbine components for high temperature applications.
摘要:
A device for delivering a biocompatible material to a surgical site includes an elongate cannula having a proximal portion, a distal portion, and at least one interior lumen disposed between the proximal and distal portions through which the biocompatible material is delivered. The device further includes a confinement member adjacent the distal portion of the cannula having expanded and unexpanded positions. In the expanded position, the confinement member defines an open cavity about the distal portion of the cannula and in fluid communication with the interior lumen to retain the biocompatible material. A method of delivering a curable biocompatible material to a surgical site includes positioning a distal portion of a cannula adjacent the surgical site and actuating a confinement member to define an open cavity about the distal portion. The biocompatible material is introduced into the cavity through the cannula and cross-linking of the curable biocompatible material is initiated.
摘要:
A telecommunication control system for an electrical appliance, which includes an operation switch and a sensor switch, includes a telecommunicating remote control for communicating with the telecommunication network, wherein the telecommunicating remote control is adapted to receive an access signal through the telecommunication network; and a logic switch electrically linked with the telecommunicating remote control for actuating the electrical appliance when the telecommunicating remote control receives the access signal, wherein the logic switch is adapted to send an actuation signal to the operation switch of the electrical appliance when the electrical appliance is turned on so as to deactivate the electrical appliance, and when the electrical appliance is turned off, the logic switch is idled so as to keep the electrical appliance remains turning off.
摘要:
In a mobile IPv6 network having multiple distributed regression home agents and a load balance method for the multiple regression home agents, the network comprises a plurality of mobile subnets connected to each other through an Internet. Each mobile subnet comprises an access router, a plurality of mobile nodes, and a plurality of regression agents. The regression agents are arranged in a distributed topology structure. The regression agents exchange information with each other by performing a broadcast of traffic load information (table) among the regression agents. Further, each of the regression agents has a traffic load table to perform the load balance operation accordingly.
摘要:
Architecture that operates in combination with an integrated search framework to derive user intent associated with a search query, and then based on the derived intent, choose the search method: a local search on the current local device from which the search is initiated, a non-local search of data sources other than the local device, or both the local search and the non-local search. The query context can be derived to more effectively assess the query intent. The architecture employs predictive models trained with candidate features that enable the prediction of a singular intent (or degree of intent) in the integrated search environment. The models can be trained using historical and real-time features. A classifier is trained using the features. The user intent is then derived based on the classifier output and the search is performed accordingly.
摘要:
Multifunctional polymers are disclosed having a smart segment and a biodegradable segment. Advantageously, the biodegradable segment includes a hydrophilic segment and a hydrophobic segment. Embodiments include combining the multifunctional polymeric material with a biologically active substance in an aqueous loading environment and administering the composition as a drug delivery vehicle to a human subject.
摘要:
Hybrid wicking materials are used in high performance heat pipes where a bi-modal distribution of pore sizes offers advantages over a homogeneous monolithic porous structure. This wick is comprised of sintered metal powder formed on a foam, felt, screen or mesh metal substrate. A fine pore structure is formed by the metal powder while the substrate is comprised of large pores. The large pores are several times, preferably five times to several orders of magnitude larger in size than the small pores. The sintered powder metal and the metal substrate may be made of nickel, copper, molybdenum, niobium, aluminum, iron, cobalt, titanium and alloys based on these metals. This provides a wicking material with axial and radial variations in pore size for optimized performance under both horizontal and against gravity orientations.
摘要:
A device for delivering a biocompatible material to a surgical site includes a cannula having proximal and distal portions and at least a first interior lumen disposed therebetween through which the biocompatible material is delivered. The device further includes an initiation member for initiating cross-linking of the biocompatible material while the biocompatible material is within the cannula. The cannula may include a heating element to thermally initiate cross-linking. Alternately, the cannula may include a second lumen for transmitting light from a light source. A movable blocking element controls the amount of light that passes into the first lumen. A method of delivering a curable biocompatible material to a surgical site includes positioning a distal portion of a cannula adjacent the surgical site and introducing the biocompatible material through a first lumen of the cannula. Cross-linking of the biocompatible material is then initiated while the biocompatible material is within the cannula.
摘要:
Multifunctional polymers are disclosed having a smart segment and a biodegradable segment. Advantageously, the biodegradable segment includes a hydrophilic segment and a hydrophobic segment. Embodiments include combining the multifunctional polymeric material with a biologically active substance in an aqueous loading environment and administering the composition as a drug delivery vehicle to a human subject.
摘要:
The present method induces an oxidation-proof ferric phosphate coating on iron sulfide such as pyrite and marcasite. The method includes the steps of placing the pyrite to be treated in a reaction vessel and leaching the pyrite with a coating composition including water, an oxidizing agent and a phosphate coating agent. Examples of oxidizing agents include hydrogen peroxide, sodium hypochlorite, potassium hypochlorite and mixtures thereof. The phosphate coating agent may be potassium dihydrogen phosphate. In order to ensure the formation of the stable coating, the leaching is performed at a pH of substantially 5 and at a temperature of substantially 40.degree. C. Additionally, the oxidizing agent is maintained at a concentration of substantially 0.1% by weight of the coating composition while the concentration of the phosphate coating agent is maintained at at least substantially 10.sup.-4 M/l.